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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 20-F



| ̈ | REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934
|- | ----------------------------------------------------------------------------------------------

or



|x | ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
|- | ------------------------------------------------------------------------------------

For the fiscal year ended December 31, 2007

or



| ̈ | TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
|- | ----------------------------------------------------------------------------------------

For the transition period from              to

or



| ̈ | SHELL COMPANY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
|- | -------------------------------------------------------------------------------------------

Date of event requiring this shell company report

Commission File Number 0-28564





QIAGEN N.V.

(Exact name of Registrant as specified in its charter)

n/a

(Translation of Registrants name in English)

The Netherlands

(Jurisdiction of
incorporation or organization)

Spoorstraat 50

5911 KJ Venlo

The Netherlands

011-31-77-320-8400

(Address of principal executive offices)





Roland Sackers, Tel: (240) 686-7700, Fax: (240) 686-7772

QIAGEN
N.V., 19300 Germantown Rd. Germantown, Maryland 20874

(Name, Telephone, E-mail and/or Facsimile number and Address of Company Contact
Person)





Securities registered or to be registered pursuant to Section 12(b) of the Act:



|                                                            |  |                                                                   
|----------------------------------------------------------- |  | ------------------------------------------------------------------
|Title of class: Common Shares, par value EUR
0.01 per share |  | Name of each exchange on which registered: NASDAQ Stock Market LLC

Securities registered or to be registered pursuant to Section 12(g) of the Act:

None

Securities
for which there is a reporting obligation pursuant to Section 15(d) of the Act:

None





The number of outstanding Common Shares as of December 31, 2007 was 195,335,076.

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.    x  Yes     ̈  No

If this report is
an annual or transition report, indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934.     ̈  Yes    x  No

NoteChecking
the box above will not relieve any registrant required to file reports pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 from their obligations under those Sections. Indicate by check mark whether the registrant
(1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and
(2) has been subject to such filing requirements for the past 90 days.    x  Yes     ̈  No

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, or a non-accelerated filer. See definition of
accelerated filer and large accelerated filer in Rule 12b-2 of the Exchange Act. (Check one):

Large accelerated
filer  x             Accelerated filer   ̈             Non-accelerated filer   ̈

Indicate by check mark which financial statement item the registrant has elected to follow.     ̈  Item 17     x  Item 18

Indicate by check mark which basis of accounting the registrant has used to prepare the financial statements included in this filing:



|x | U.S. GAAP
|- | ---------



| ̈ | International Financial Reporting Standards as issued by the International Accounting Standards Board
|- | -----------------------------------------------------------------------------------------------------



| ̈ | Other
|- | -----

If Other has been checked in response
to the previous question, indicate by check mark which financial statement item the registrant has elected to follow:



| ̈ | Item 17
|- | -------



| ̈ | Item 18
|- | -------

If this is an annual report, indicate by
check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).     ̈  Yes    x  No









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Unless the context otherwise requires, references herein to we, us, our, the
Company or to QIAGEN are to QIAGEN N.V. and its consolidated subsidiaries.





Our name together with our logo is registered as a trademark in the United States and a number of other countries: QIAGEN®. Other trademarks registered in the United States and in
other countries include, inter alia: QIAexpress®, QIAwell®, QIAEX®, QIAprep®, QIAamp®, QIAquick®, Oligotex®, RNeasy®, BIOROBOT®, ENDOFREE®, R.E.A.L.®, PolyFect®, SuperFect®,
DNeasy®, UltraFect®, TurboFilter®, HotStarTaq®, EFFECTENE®, QIA®, DyeEx®, Omniscript®, Sensiscript®, HiSpeed®, Targetene®, TransMessenger®, MagAttract®, DirectPrep®, InhibitEX®, DoubleTag®, QuantiScript®, UltraSens®, pAlliance®, MinElute®, EverGene®, ProofStart®, FlexiGene®,
QuantiTect®, DNAprotect®, RNAprotect® and LiquiChip®, LabelStar®, EasyXpress® RNAiFect® BioSprint® ,TISSUERUPTOR® , THE SAMPLE & ASSAY COMPANY® , QIAGEN THE SAMPLE & ASSAY COMPANY®, QIAGEN SAMPLE & ASSAY TECHNOLGIES® ,
QIACUBE®, QIASYMPHONY®, ARRAY IN A DAY®, DIGENE®, DIGENE design®, DNA WITH PAP®, HC EXPRESSARRAY®, HC2 HIGH-RISK HPV DNA TEST®, HYBRID CAPTURE®, RAPID CAPTURE®, SHARP SIGNAL®, AND VIRATYPE®.

Registered trademarks in countries outside of the United States include: QIABRANE, ProofTaq, Easylabel, Qproteome, FastLane, EpiTect.

In 2007, 23 trademark applications were filed in Germany, Countries of the European Community,
Japan, Canada and the United States of America such as QIAPLEX, STOP RNASE®, TopTaq®, Q-Solution, HIPERFECT,
GENESOLUTION, FLEXITUBE, and ENSEMBLE. In addition, applications have been filed prior to 2007 in various jurisdictions for CAPTURA HYBRIDA, DNA PAP, and UCM.

This Annual Report on Form 20-F may also contain trade names or trademarks of companies other than QIAGEN.





EXCHANGE RATES

QIAGEN publishes its financial statements in U.S. dollars. In this Annual Report on Form 20-F, references to dollars or $ are to U.S. dollars,
and references to EUR or the euro are to the European Monetary Union euro. Except as otherwise stated herein, all monetary amounts in this Annual Report on Form 20-F have been presented in U.S. dollars.

The exchange rate used for the euro was the noon buying rate of the euro in New York City for cable transfers in foreign currencies as certified for customs purposes by
the Federal Reserve Board of New York. This rate at March 19, 2008, was $1.5642 per EUR 1.

For information regarding the effects of currency
fluctuations on our results, see Item 5 Operating and Financial Review and Prospects.







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TABLE OF CONTENTS

|          |  |                                                                              |  |     
|--------- |  | ---------------------------------------------------------------------------- |  | ----
|          |  | PART I                                                                       |  |     
|          |  |                                                                             
|          |  |                                                                              |  | Page
|Item 1.   |  | Identity of Directors, Senior Management and Advisors                        |  | 4   
|Item 2.   |  | Offer Statistics and Expected Timetable                                      |  | 4   
|Item 3.   |  | Key Information                                                              |  | 4   
|Item 4.   |  | Information on the Company                                                   |  | 19  
|Item 4A.  |  | Unresolved Staff Comments                                                    |  | 30  
|Item 5.   |  | Operating and Financial Review and Prospects                                 |  | 30  
|Item 6.   |  | Directors, Senior Management and Employees                                   |  | 46  
|Item 7.   |  | Major Shareholders and Related Party Transactions                            |  | 56  
|Item 8.   |  | Financial Information                                                        |  | 57  
|Item 9.   |  | The Listing of QIAGENs Common Shares                                        |  | 59  
|Item 10.  |  | Additional Information                                                       |  | 60  
|Item 11.  |  | Quantitative and Qualitative Disclosures about Market Risk                   |  | 75  
|Item 12.  |  | Description of Securities other than Equity Securities                       |  | 77  
|          |  |                                                                             
|          |  | PART II                                                                      |  |     
|          |  |                                                                             
|Item 13.  |  | Defaults, Dividend Arrearages and Delinquencies                              |  | 78  
|Item 14.  |  | Material Modifications to the Rights of Security Holders and Use of Proceeds |  | 78  
|Item 15.  |  | Controls and Procedures                                                      |  | 78  
|Item 16A. |  | Audit Committee Financial Expert                                             |  | 79  
|Item 16B. |  | Code of Ethics                                                               |  | 79  
|Item 16C. |  | Principal Accountant Fees and Services                                       |  | 79  
|Item 16D. |  | Exemptions from the Listing Standards for Audit Committees                   |  | 80  
|Item 16E. |  | Purchases of Equity Securities by the Issuer and Affiliated Purchasers       |  | 80  
|          |  |                                                                             
|          |  | PART III                                                                     |  |     
|          |  |                                                                             
|Item 17.  |  | Financial Statements                                                         |  | 81  
|Item 18.  |  | Financial Statements                                                         |  | 81  
|Item 19.  |  | Exhibits                                                                     |  | 81  
|          |  | Signatures                                                                   |  | 83  



3



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PART I

Item 1.    Identity of Directors, Senior Management and Advisors

Not applicable.

Item 2.    Offer Statistics and Expected Timetables

Not applicable.

Item 3.    Key Information

The selected consolidated financial data below should be read in
conjunction with Operating and Financial Review and Prospects and the Consolidated Financial Statements, notes thereto and other financial information included elsewhere in this Annual Report on Form 20-F. The selected consolidated
statements of income data for the years ended December 31, 2007, 2006 and 2005 and the consolidated balance sheet data at December 31, 2007 and 2006 are derived from the Consolidated Financial Statements of QIAGEN which have been audited
by an independent registered public accounting firm, and are included herein. The selected consolidated statements of income data presented for the years ended December 31, 2004 and 2003, and the consolidated balance sheet data as of
December 31, 2005, 2004 and 2003, is derived from audited consolidated financial statements not included herein.

Selected Financial Data

The information below should be read in conjunction with the consolidated financial statements (and notes thereto) and
Operating and Financial Review and Prospects.



|                                                                                             |  |                          |         |   |      |   |         |  |      |         |  |      |         |   |  |   |         |  
|-------------------------------------------------------------------------------------------- |  | ------------------------ | ------- | - | ---- | - | ------- |  | ---- | ------- |  | ---- | ------- | - |  | - | ------- | -
|                                                                                             |  | Years ended December 31, |        
|                                                                                             |  | 2007                     |         |   | 2006 |   | 2005    |  | 2004 |         |  | 2003 |        
|Consolidated Statement of Income Data: (amounts in thousands, except per share data)         |  |                          |         |   |      |   |         |  |      |         |  |      |         |   |  |   |         |  
|Net sales                                                                                    |  | $                        | 649,774 |   |      | $ | 465,778 |  | $    | 398,395 |  | $    | 380,629 |   |  | $ | 351,404 |  
|Cost of sales                                                                                |  |                          | 189,773 |   |      |   | 139,122 |  |      | 122,755 |  |      | 125,658 |   |  |   | 118,786 |  
|Cost of salesacquisition and restructuring related                                          |  |                          | 2,839   |   |      |   | 2,046   |  |      | 439     |  |      | 1,454   |   |  |   | 3,618   |  
|Cost of salesacquisition related intangible amortization                                    |  |                          | 23,615  |   |      |   | 6,135   |  |      | 3,319   |  |      | 1,416   |   |  |   | 1,096   |  
|                                                                                             |  |                          |         |   |      |   |         |  |      |         |  |      |         |   |  |   |         |  
|Gross profit                                                                                 |  |                          | 433,547 |   |      |   | 318,475 |  |      | 271,882 |  |      | 252,101 |   |  |   | 227,904 |  
|                                                                                             |  |                          |         |   |      |   |         |  |      |         |  |      |         |   |  |   |         |  
|Operating Expenses:                                                                          |  |                          |         |   |      |   |         |  |      |         |  |      |         |   |  |   |         |  
|Research and development                                                                     |  |                          | 64,935  |   |      |   | 41,560  |  |      | 35,780  |  |      | 34,351  |   |  |   | 31,068  |  
|Sales and marketing                                                                          |  |                          | 164,690 |   |      |   | 115,942 |  |      | 94,312  |  |      | 87,506  |   |  |   | 83,005  |  
|General and administrative                                                                   |  |                          | 71,932  |   |      |   | 48,574  |  |      | 40,123  |  |      | 41,715  |   |  |   | 41,894  |  
|Purchased in-process research and development                                                |  |                          | 25,900  |   |      |   | 2,200   |  |      | 3,239   |  |      |        |   |  |   |        |  
|Acquisition, integration and related costs                                                   |  |                          | 14,708  |   |      |   | 6,061   |  |      | 3,213   |  |      | 572     |   |  |   |        |  
|Acquisition related intangible amortization                                                  |  |                          | 7,711   |   |      |   | 2,085   |  |      | 378     |  |      |        |   |  |   |        |  
|Relocation and restructuring costs                                                           |  |                          | 538     |   |      |   | 1,452   |  |      |        |  |      | 3,817   |   |  |   | 3,048   |  
|                                                                                             |  |                          |         |   |      |   |         |  |      |         |  |      |         |   |  |   |         |  
|Total operating expenses                                                                     |  |                          | 350,414 |   |      |   | 217,874 |  |      | 177,045 |  |      | 167,961 |   |  |   | 159,015 |  
|                                                                                             |  |                          |         |   |      |   |         |  |      |         |  |      |         |   |  |   |         |  
|Income from operations                                                                       |  |                          | 83,133  |   |      |   | 100,601 |  |      | 94,837  |  |      | 84,140  |   |  |   | 68,889  |  
|                                                                                             |  |                          |         |   |      |   |         |  |      |         |  |      |         |   |  |   |         |  
|Other income (expense), net                                                                  |  |                          | (7,407  | ) |      |   | 5,467   |  |      | 2,427   |  |      | (11,453 | ) |  |   | (1,634  | )
|                                                                                             |  |                          |         |   |      |   |         |  |      |         |  |      |         |   |  |   |         |  
|Income before provision for income taxes and minority interest                               |  |                          | 75,726  |   |      |   | 106,068 |  |      | 97,264  |  |      | 72,687  |   |  |   | 67,255  |  
|Provision for income taxes                                                                   |  |                          | 25,555  |   |      |   | 35,529  |  |      | 35,039  |  |      | 23,982  |   |  |   | 24,405  |  
|Minority interest                                                                            |  |                          | 49      |   |      |   |        |  |      |        |  |      |        |   |  |   |        |  
|                                                                                             |  |                          |         |   |      |   |         |  |      |         |  |      |         |   |  |   |         |  
|Net income                                                                                   |  | $                        | 50,122  |   |      | $ | 70,539  |  | $    | 62,225  |  | $    | 48,705  |   |  | $ | 42,850  |  
|                                                                                             |  |                          |         |   |      |   |         |  |      |         |  |      |         |   |  |   |         |  
|Basic net income per Common Share(1)                                                         |  | $                        | 0.30    |   |      | $ | 0.47    |  | $    | 0.42    |  | $    | 0.33    |   |  | $ | 0.29    |  
|                                                                                             |  |                          |         |   |      |   |         |  |      |         |  |      |         |   |  |   |         |  
|Diluted net income per Common Share(1)                                                       |  | $                        | 0.28    |   |      | $ | 0.46    |  | $    | 0.41    |  | $    | 0.33    |   |  | $ | 0.29    |  
|                                                                                             |  |                          |         |   |      |   |         |  |      |         |  |      |         |   |  |   |         |  
|Weighted average number of Common Shares used to compute basic net income per Common Share   |  |                          | 168,457 |   |      |   | 149,504 |  |      | 147,837 |  |      | 146,658 |   |  |   | 145,832 |  
|Weighted average number of Common Shares used to compute diluted net income per Common Share |  |                          | 175,959 |   |      |   | 153,517 |  |      | 150,172 |  |      | 148,519 |   |  |   | 147,173 |  



|(1) | See Note 3 of the Notes to Consolidated Financial Statements for the computation of the weighted average number of Common Shares.
|--- | -----------------------------------------------------------------------------------------------------------------------------------



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|                                                        |  |                    |           |      |   |           |  |      |         |      |   |         |  |   |        
|------------------------------------------------------- |  | ------------------ | --------- | ---- | - | --------- |  | ---- | ------- | ---- | - | ------- |  | - | -------
|                                                        |  | As of December 31,
|                                                        |  | 2007               |           | 2006 |   | 2005      |  | 2004 |         | 2003
|Consolidated Balance Sheet Data: (amounts in thousands) |  |                    |           |      |   |           |  |      |         |      |   |         |  |   |        
|Cash and cash equivalents                               |  | $                  | 347,320   |      | $ | 430,357   |  | $    | 191,700 |      | $ | 196,375 |  | $ | 98,993 
|Working capital                                         |  | $                  | 482,215   |      | $ | 566,660   |  | $    | 278,586 |      | $ | 299,029 |  | $ | 163,583
|Total assets                                            |  | $                  | 2,775,174 |      | $ | 1,212,012 |  | $    | 765,298 |      | $ | 714,599 |  | $ | 551,930
|Total long-term liabilities, including current portion  |  | $                  | 1,220,084 |      | $ | 536,738   |  | $    | 230,086 |      | $ | 234,138 |  | $ | 131,095
|Total shareholders equity                              |  | $                  | 1,391,575 |      | $ | 566,165   |  | $    | 450,457 |      | $ | 400,376 |  | $ | 334,786
|Common Shares                                           |  | $                  | 2,175     |      | $ | 1,535     |  | $    | 1,513   |      | $ | 1,495   |  | $ | 1,485  
|Shares outstanding                                      |  |                    | 195,335   |      |   | 150,168   |  |      | 148,456 |      |   | 147,020 |  |   | 146,218

Risk Factors

Note regarding Forward-Looking Statements and Risk Factors

Our future operating results may be affected by various risk
factors, many of which are beyond our control. Certain of the statements included in this Annual Report and the documents incorporated herein by reference may be forward-looking statements within the meaning of Section 27A of the U.S.
Securities Act of 1933, as amended, and Section 21E of the U.S. Securities Exchange Act of 1934, as amended, including statements regarding potential future net sales, gross profit, net income and liquidity. These statements can be identified
by the use of forward-looking terminology such as believe, hope, plan, intend, seek, may, will, could, should, would,
expect, anticipate, estimate, continue or other similar words. Reference is made in particular to the description of our plans and objectives for future operations, assumptions underlying such plans
and objectives, and other forward-looking statements. Such statements are based on managements current expectations and are subject to a number of factors and uncertainties that could cause actual results to differ materially from those
described in the forward-looking statements. We caution investors that there can be no assurance that actual results or business conditions will not differ materially from those projected or suggested in such forward-looking statements as a result
of various factors. Factors which could cause such results to differ materially from those described in the forward-looking statements include those set forth in the risk factors below. As a result, our future development efforts involve a high
degree of risk. When considering forward-looking statements, you should keep in mind that the risk factors could cause our actual results to differ significantly from those contained in any forward-looking statement.

Risks Related to Our Business

An inability to manage our growth,
manage the expansion of our operations, or successfully integrate acquired businesses could adversely affect our business.

Our business
has grown rapidly, with total net revenues increasing from $263.8 million in 2001 to $649.8 million in 2007. In 2007, we completed the construction of a new logistics facility in Germany. Additionally, we have made several acquisitions in
the last few years, including our acquisition of Digene Corporation in July 2007, and may acquire additional businesses in the future. The successful integration of acquired businesses requires a significant effort and expense across all operational
areas, including sales and marketing, research and development, manufacturing, finance and administration and information technologies.

Our earlier expansion of facilities in Maryland and Germany added production capacity and increased fixed costs. These higher fixed costs will continue to be a cost of production in the future, and until we more fully utilize the additional
capacity of the facilities, our gross profit will be negatively impacted. We have also upgraded our operating and financial systems and expanded the geographic area of our operations, resulting in the hiring of new employees, as well as increased
responsibility for both existing and new management personnel. The rapid expansion of our business and addition of new personnel may place a strain on our management and operational systems.



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Our future operating results will depend on the ability of our management to continue to implement and
improve our research, product development, manufacturing, sales and marketing and customer support programs, enhance our operational and financial control systems, expand, train and manage our employee base, integrate acquired businesses, and
effectively address new issues related to our growth as they arise. There can be no assurance that we will be able to manage our recent or any future expansion or acquisition successfully, and any inability to do so could have a material adverse
effect on our results of operations.

Our acquisitions expose us to new risks, and we may not achieve the anticipated benefits of acquisitions of
technologies and businesses.

During the past several years we have acquired a number of companies, including our acquisition of Digene
Corporation in July 2007, through which we have gained access to technologies and products that complement our internally developed product lines. In the future, we may acquire additional technologies, products or businesses to expand our existing
and planned business. Acquisitions, including our acquisition of Digene, expose us to the addition of new operating and other risks including the risks associated with the:



| |  |  | assimilation of new technologies, operations, sites and personnel;
| | - |  | ------------------------------------------------------------------



| |  |  | application for and achievement of regulatory approvals or other clearances;
| | - |  | ----------------------------------------------------------------------------



| |  |  | diversion of resources from our existing business and technologies;
| | - |  | -------------------------------------------------------------------



| |  |  | inability to generate revenues to offset associated acquisition costs;
| | - |  | ----------------------------------------------------------------------



| |  |  | inability to implement and maintain uniform standards and effective controls and procedures;
| | - |  | --------------------------------------------------------------------------------------------



| |  |  | inability to maintain relationships with employees and customers as a result of any integration of new management personnel;
| | - |  | ----------------------------------------------------------------------------------------------------------------------------



| |  |  | issuance of dilutive equity securities;
| | - |  | ---------------------------------------



| |  |  | incurrence or assumption of debt;
| | - |  | ---------------------------------



| |  |  | additional expenses associated with future amortization or impairment of acquired intangible assets or potential businesses; or
| | - |  | -------------------------------------------------------------------------------------------------------------------------------



| |  |  | assumption of liabilities or exposure to claims against acquired entities.
| | - |  | --------------------------------------------------------------------------

Our failure to address the above risks successfully in the future may prevent us from achieving the anticipated benefits from any acquisition in a
reasonable time frame, or at all.

Our continued growth is dependent on the development and success of new products.

Rapid technological change and frequent new product introductions are typical in our markets. Our future success will depend in part on continuous, timely
development and introduction of new products that address evolving market requirements. We believe successful new product introductions provide a significant competitive advantage because customers make an investment of time in selecting and
learning to use a new product and are reluctant to switch thereafter. To the extent that we fail to introduce new and innovative products, we may lose market share to our competitors, which will be difficult or impossible to regain. An inability,
for technological or other reasons, to successfully develop and introduce new products could reduce our growth rate or otherwise have an adverse effect on our business. In the past, we have experienced, and are likely to experience in the future,
delays in the development and introduction of products. We cannot assure you that we will keep pace with the rapid rate of change in our markets or that our new products will adequately meet the requirements of the marketplace or achieve market
acceptance. Some of the factors affecting market acceptance of new products include:



| |  |  | availability, quality and price relative to competitive products;
| | - |  | -----------------------------------------------------------------



| |  |  | the timing of introduction of the new product relative to competitive products;
| | - |  | -------------------------------------------------------------------------------



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| |  |  | scientists opinions of the new products utility;
| | - |  | --------------------------------------------------



| |  |  | citation of the new product in published research;
| | - |  | --------------------------------------------------



| |  |  | regulatory trends and approvals; and
| | - |  | ------------------------------------



| |  |  | general trends in life sciences research, applied markets and molecular diagnostics.
| | - |  | ------------------------------------------------------------------------------------

The expenses or losses associated with unsuccessful product development activities or lack of market acceptance of our new products could materially
adversely affect our business, financial condition and results of operations.

We depend on patents and proprietary rights that may fail to protect our
business.

Our success will depend to a large extent on our ability to develop proprietary products and technologies and to establish
and protect our patent and trademark rights in these products and technologies. As of December 31, 2007, we owned 109 issued patents in the United States, 70 issued patents in Germany and 434 issued patents in other major industrialized
countries. In addition, at December 31, 2007, we had 619 pending patent applications, and we intend to file applications for additional patents as our products and technologies are developed.

The patent positions of technology-based companies, including QIAGEN, involve complex legal and factual questions and may be uncertain, and the laws
governing the scope of patent coverage and the periods of enforceability of patent protection are subject to change. In addition, patent applications in the United States are maintained in secrecy until patents issue, and publication of discoveries
in the scientific or patent literature tend to lag behind actual discoveries by several months. Therefore, no assurance can be given that patents will issue from any patent applications that we own or license or if patents do issue, that the claims
allowed will be sufficiently broad to protect our technology. In addition, no assurance can be given that any issued patents that we own or license will not be challenged, invalidated or circumvented, or that the rights granted thereunder will
provide us competitive advantages. Further, as issued patents expire, we may lose some competitive advantage as others develop competing products and as a result, we may lose revenue.

Although we have the only fully commercialized and FDA-approved test for the detection of the human Papillomavirus (HPV), a significant portion of our
HPV-related intellectual property is in the public domain, subject to patents that will begin to expire in the next few years or are not licensed to us on a sole and exclusive basis. As a result, we believe other companies are developing or may
develop HPV detection tests in the next few years.

Certain of our products incorporate patents and technologies that are licensed from
third parties and for certain products, these in-licensed patents together with other patents provide us with a competitive advantage. These licenses impose various commercialization, sublicensing and other obligations on us. Our failure to comply
with these requirements could result in the conversion of the applicable license from being exclusive to non-exclusive in nature or, in some cases, termination of the license and as a result we may lose some competitive advantage and experience a
loss of revenue.

We also rely on trade secrets and proprietary know-how, which we seek to protect through confidentiality agreements with
our employees and consultants. There can be no assurance that any confidentiality agreements that we have with our employees, consultants, outside scientific collaborators and sponsored researchers and other advisors will provide meaningful
protection for our trade secrets or adequate remedies in the event of unauthorized use or disclosure of such information. There also can be no assurance that our trade secrets will not otherwise become known or be independently developed by
competitors.

We currently engage in, and may continue to engage in, collaborations with academic researchers and institutions. There can
be no assurance that under the terms of such collaborations, third parties will not acquire rights in certain inventions developed during the course of the performance of such collaborations.



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Our concentration of a large amount of revenues in a single product and a small number of customers for that product
increases our dependence on that products success, our reliance on our relationship with each of those customers, and our reliance on a diversification strategy.

Following our acquisition of Digene Corporation, we believe that revenue from sales of our HPV test product may represent as much as 20% of our total revenues. While the ultimate decision to order that test is made by
the patient in consultation with her physician, the test is performed by reference laboratories. At present, sales to a limited number of reference laboratories account for substantially all of our revenues for that product. If there is a
significant reduction in sales of this product that is not replaced by revenues from new products or customers or an increase in revenues from existing products or customers, then it will have a significant adverse impact on our earnings. Further,
the cost of HPV testing is reimbursed to the reference laboratories by insurance providers and healthcare maintenance organizations. If these insurance companies decide to limit the availability of payments for our test to their members, it could
have a significant adverse impact on our revenues. It is possible that our dependence on revenues from this product and those customers will continue in the future. If we fail to diversify our product line and customer base for this product, we may
continue to be at risk that the loss or under-performance of a single product or customer may materially affect our earnings.

Our sales of HPV products
and our growth will also depend on continued increases in the acceptance of and the market for HPV screening by physicians and laboratories.

Our sales of HPV products and our ability to increase sales of HPV products depend upon continued and increasing acceptance by physicians and laboratories of HPV screening as a necessary part of the standard of care for cervical cancer
screening and, more specifically, of our HPV test products as a primary cervical cancer screening method, in conjunction with Pap tests, independent of Pap tests, and in conjunction with the implementation of HPV vaccinations. Pap tests have been
the principal means of cervical cancer screening since the 1940s. Technological advances designed to improve quality control over sample collection and preservation and to reduce the Pap tests susceptibility to human error may increase
physician reliance on the Pap test and solidify its market position as the most widely used screen for cervical cancer. Currently, approximately 60 million Pap tests are performed annually in the United States and we believe that 60 to
100 million are performed annually in the rest of the world.

HPV testing applies a new molecular-based technology and testing
approach that is different from the cytology-based (reviewing cells under a microscope) approach of the Pap test. Significant resources are required to educate physicians and laboratories about the patient benefits that can result from using HPV
test products in addition to the Pap test, and to assist laboratory customers in learning how to use our HPV test products. Using our HPV test products along with the Pap test for primary screening in the United States may be seen by some of these
customers as adding unnecessary expense to the generally accepted cervical cancer screening methodology, and therefore, we frequently need to provide information to counteract this impression on a case-by-case basis. If we are not successful in
executing our marketing strategies, we may not be able to maintain or continue to grow our market share for HPV testing.

Direct-to-consumer awareness marketing programs are used because a well educated female population will work with their health care providers to increase the use of the HPV Test. If we are not successful in continuing to execute this
marketing program, we may not be able to maintain or continue to increase the sales of our HPV tests to the extent we desire.

We are
working with physician and laboratory customers and with others to develop and establish the role HPV screening will play in addition to and in conjunction with HPV vaccination. If we are not successful in this endeavor, we may not be able to
maintain or grow the market for HPV screening or maintain or increase our HPV test revenues.

Our products for the diagnosis of the
presence of chlamydia and gonorrhea compete with other FDA-approved products that detect the presence of such infectious diseases. Our marketing activities focus on



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providing information regarding the accuracy and objective nature of these diagnostic tests, but such activities are time-consuming and expensive. We believe
the best way to increase our revenues from these products is to educate laboratories and physicians about the ability to run such tests from the same patient sample collected for HPV testing. If we are not successful in executing our marketing
strategy, we do not expect to significantly grow revenues from these products.

We are subject to risks associated with patent litigation.

The biotechnology industry has been characterized by extensive litigation regarding patents and other intellectual property rights. We
are aware that patents have been applied for and/or issued to third parties claiming technologies for the separation and purification of nucleic acids that are closely related to those we use. From time to time we receive inquiries requesting
confirmation that we do not infringe patents of third parties. We endeavor to follow developments in this field, and we do not believe that our technologies or products infringe any proprietary rights of third parties. However, there can be no
assurance that third parties will not challenge our activities and, if so challenged, that we will prevail. In addition, the patent and proprietary rights of others could require that we alter our products or processes, pay licensing fees or cease
certain activities, and there can be no assurance that we will be able to license any technologies that we may require on acceptable terms. In addition, litigation, including proceedings that may be declared by the U.S. Patent and Trademark Office
or the International Trade Commission, may be necessary to respond to any assertions of infringement, enforce our patent rights and/or determine the scope and validity of our proprietary rights or those of third parties. Litigation could involve
substantial cost, and there can be no assurance that we would prevail in any such proceedings.

Our ability to accurately forecast our results during
each quarter may be negatively impacted by the fact that a substantial percentage of our sales may be recorded in the final weeks or days of the quarter.

The markets we serve are characterized by a high percentage of purchase orders being received in the final few weeks or even days of each quarter. Although this varies from quarter to quarter, many customers make a
large portion of their purchase decisions late in each fiscal quarter, as both their budgets and requirements for the coming quarter become clearer. As a result, even late in each fiscal quarter, we cannot predict with certainty whether our revenue
forecasts for the quarter will be achieved. Historically, we have been able to rely on the overall pattern of customer purchase orders during prior periods to project with reasonable accuracy our anticipated sales for the current or coming quarters.
However, if our customers purchases during a quarter vary from historical patterns, our final quarterly results could deviate significantly from our projections. Consequently, our revenue forecasts for any given quarter may prove not to have
been accurate. We may not have enough information as a result of such patterns to confirm or revise our sales projections during a quarter. If we fail to achieve our forecasted revenues for a particular quarter, our stock price could be adversely
affected.

Our operating results may vary significantly from period to period.

Our operating results may vary significantly from quarter to quarter and from year to year, depending on factors such as the level and timing of our
customers research and commercialization efforts, the timing of our customers funding, the timing of our research and development and sales and marketing expenses, the introduction of new products by us or our competitors, competitive
conditions, exchange rate fluctuations and general economic conditions. Our expense levels are based in part on our expectations as to future revenues. Consequently, revenues or profits may vary significantly from quarter to quarter or from year to
year, and revenues and profits in any interim period will not necessarily be indicative of results in subsequent periods.

Competition could reduce
sales.

Our primary competition stems from traditional methods (traditional or home-brew methods) that utilize
widely available reagents and other chemicals to perform sample and assay processing steps. We are also aware that a significant number of laboratory organizations and other companies are developing and using



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internally developed, or home-brew, molecular tests such as HPV tests. These tests, although not approved by the FDA or similar non-U.S.
regulatory authorities, do offer an alternative to our products that could limit the laboratory customer base for our product. The success of our business depends in part on the continued conversion of current users of such traditional methods to
our sample and assay technologies and products. There can be no assurance, however, as to how quickly such conversion will occur.

We also
have experienced, and expect to continue to experience, increasing competition in various segments of our business from companies providing competitive pre-analytical products and other products competitive with our own. The markets for certain of
our products are very competitive and price sensitive. Other product suppliers have significant financial, operational, sales and marketing resources, and experience in research and development. These and other companies may have developed or could
in the future develop new technologies that compete with our products or even render our products obsolete. If a competitor develops superior technology or cost-effective alternatives to our kits and other products, our business, operating results
and financial condition could be materially adversely affected.

We believe that customers in the market for pre-analytical solutions and
assay technologies display a significant amount of loyalty to their initial supplier of a particular product. Therefore, it may be difficult to generate sales to customers who have purchased products from competitors. To the extent we are unable to
be the first to develop and supply new products, our competitive position may suffer.

Reduction in research and development budgets and government
funding may result in reduced sales.

Our customers include researchers at pharmaceutical and biotechnology companies, academic
institutions and government and private laboratories. Fluctuations in the research and development budgets of these researchers and their organizations for applications in which our products are used could have a significant effect on the demand for
our products. Research and development budgets fluctuate due to changes in available resources, mergers of pharmaceutical and biotechnology companies, spending priorities and institutional budgetary policies. Our business could be seriously damaged
by any significant decrease in life sciences research and development expenditures by pharmaceutical and biotechnology companies, academic institutions or government and private laboratories. In addition, short term changes in administrative,
regulatory or purchasing-related procedures can create uncertainties or other impediments which can contribute to lower sales.

In recent
years, the pharmaceutical and biotech industries have undergone substantial restructuring and consolidation. Additional mergers or corporate consolidations in the pharmaceutical industry could cause us to lose existing customers and potential future
customers, which could have a material adverse effect on our business, financial condition and results of operations.

A significant
portion of our sales have been to researchers, universities, government laboratories and private foundations whose funding is dependent upon grants from government agencies, such as the U.S. National Institutes of Health (NIH) and similar domestic
and international agencies. Although the level of research funding has increased during the past several years, we cannot assure you that this trend will continue. Government funding of research and development is subject to the political process,
which is inherently fluid and unpredictable. The predictability of our revenues may be adversely affected if our customers delay purchases as a result of uncertainties surrounding the approval of government or industrial budget proposals. Also,
government proposals to reduce or eliminate budgetary deficits have sometimes included reduced allocations to the NIH and other government agencies that fund research and development activities. A reduction in government funding for the NIH or other
government research agencies could seriously and negatively impact our business.

We have encountered delays in receipt of some European reimbursement
approvals and public health funding, which has impacted our ability to grow revenues in these markets.

Third-party payors are often
reluctant to reimburse healthcare providers for the use of medical tests such as our HPV test products, that involve new technology. In addition, third-party payors are increasingly limiting



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reimbursement coverage for medical diagnostic products and, in many instances, are exerting pressure on diagnostic product suppliers to reduce their prices.
Because each third-party payor individually approves reimbursement, obtaining such approvals is a time-consuming and costly process that requires us to provide scientific and clinical support for the use of each of our products for which we seek
reimbursement to each payor separately with no assurance that such approval will be obtained. This process can delay the broad market introduction of new products and could have a negative effect on our revenues and operating results. As a result,
outside the U.S., third-party reimbursement may not be consistently available or financially adequate to cover the cost of our products. This could limit our ability to sell our products, cause us to reduce the prices of our products or otherwise
adversely affect our operating results.

We heavily rely on air cargo carriers and other overnight logistics services.

Our customers within the scientific research markets typically do not keep a significant inventory of QIAGEN products and consequently require overnight
delivery of purchases. As such, we heavily rely on air cargo carriers such as DHL, FedEx and Panalpina. If overnight services are suspended or delayed and other delivery carriers cannot provide satisfactory services, customers may suspend a
significant amount of work requiring nucleic acid purification. If there are no adequate delivery alternatives available, sales levels could be negatively affected.

We depend on suppliers for materials used to manufacture our products and if shipments from these suppliers are delayed or interrupted, we may be unable to manufacture our products.

We buy materials for our products from many suppliers and are not dependent on any one supplier or group of suppliers for our business as a whole.
However, key components of certain products, including certain instrumentation components and chemicals, are available only from a single source. If supplies from these vendors were delayed or interrupted for any reason, we may not be able to obtain
these materials timely or in sufficient quantities or qualities in order to produce certain products, and our sales levels could be negatively affected.

We rely on collaborative commercial relationships to develop some of our products.

Our long-term business strategy has
included entering into strategic alliances and marketing and distribution arrangements with academic, corporate and other partners relating to the development, commercialization, marketing and distribution of certain of our existing and potential
products. There can be no assurance that we will continue to be able to negotiate such collaborative arrangements on acceptable terms, or that any such relationships will be scientifically or commercially successful. In addition, there can be no
assurance that we will be able to maintain such relationships or that our collaborative partners will not pursue or develop competing products or technologies, either on their own or in collaboration with others.

Doing business internationally creates certain risks for our business.

Our business involves operations in several countries outside of the United States. Our consumable manufacturing facilities are located in Germany, China, and the United States, and our instrumentation facility is
located in Switzerland. We also have established sales subsidiaries in numerous countries, including the United States, Germany, Japan, the United Kingdom, France, Switzerland, Australia, Canada, Austria, The Netherlands, Sweden, Italy, Hong Kong,
Singapore, Turkey, Korea, Malaysia, China and Brazil. In addition, our products are sold through independent distributors serving more than 40 other countries. Conducting and launching operations on an international scale requires close coordination
of activities across multiple jurisdictions and time zones and consumes significant management resources. We have invested heavily in computerized information systems in order to manage more efficiently the widely dispersed components of our
operations. We use SAP as our business information system to integrate most of our North American, European and Japanese subsidiaries.



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Our operations are also subject to other risks inherent in international business activities, such as
general economic conditions in the countries in which we operate, overlap of different tax structures, unexpected changes in regulatory requirements, compliance with a variety of foreign laws and regulations, and longer accounts receivable payment
cycles in certain countries. Other risks associated with international operations include import and export licensing requirements, trade restrictions, exchange controls and changes in tariff and freight rates. As a result of these conditions, an
inability to successfully manage our international operations could have a material adverse impact on our operations.

We have made investments in and
are expanding our business into emerging markets and regions, which exposes us to new risks.

Recently, we have expanded our business
into emerging markets in Asia and South America, and we expect to continue to focus on growing our business in these regions. In addition to the currency and international operation risks described above, our international operations are subject to
a variety of risks including risks, arising out of the economy, the political outlook and the language and cultural barriers in countries where we have operations or do business. In many of these emerging markets, we may be faced with several risks
that are more significant than in the other countries in which we have a history of doing business. These risks include economies that may be dependent on only a few products and are therefore subject to significant fluctuations, weak legal systems
which may affect our ability to enforce contractual rights, possible exchange controls, unstable governments, privatization actions or other government actions affecting the flow of goods and currency. In conducting our business, we move products
from one country to another and may provide services in one country from a subsidiary located in another country. Accordingly, we are vulnerable to abrupt changes in customs and tax regimes that may have significant negative impacts on our financial
condition and operating results.

Our business in countries with a history of corruption and transactions with foreign governments increase the
risks associated with our international activities.

As we operate and sell internationally, we are subject to the
U.S. Foreign Corrupt Practices Act, or the FCPA, and other laws that prohibit improper payments or offers of payments to foreign governments and their officials and political parties by U.S. and other business entities for the purpose of
obtaining or retaining business. We have operations, agreements with third parties and make sales in countries known to experience corruption. Further international expansion may involve more exposure to such practices. Our activities in these
countries create the risk of unauthorized payments or offers of payments by one of our employees, consultants, sales agents or distributors that could be in violation of various laws including the FCPA, even though these parties are not always
subject to our control. It is our policy to implement safeguards to discourage these practices by our employees. However, our existing safeguards and any future improvements may prove to be less than effective, and our employees, consultants, sales
agents or distributors may engage in conduct for which we might be held responsible. Violations of the FCPA may result in criminal or civil sanctions, which could be severe, and we may be subject to other liabilities, which could negatively affect
our business, operating results and financial condition.

Our success depends on the continued employment of our key personnel, any of whom we may lose
at any time.

Our senior management consists of an Executive Committee comprised of our most senior executives responsible for core
functions, the Chairman of which is Mr. Peer Schatz, our Chief Executive Officer. The loss of Mr. Schatz or any of our Managing Directors could have a material adverse effect on us. Further, although we have not experienced any
difficulties attracting or retaining key management and scientific staff, our ability to recruit and retain qualified skilled personnel will also be critical to our success. Due to the intense competition for experienced scientists from numerous
pharmaceutical and biotechnology companies and academic and other research institutions, there can be no assurance that we will be able to attract and retain such personnel on



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acceptable terms. Our planned activities will also require additional personnel, including management, with expertise in areas such as manufacturing and
marketing, and the development of such expertise by existing management personnel. The inability to recruit such personnel or develop such expertise could have a material adverse impact on our operations.

Our business may require substantial additional capital, which we may not be able to obtain on terms acceptable to us, if at all.

Our future capital requirements and level of expenses will depend upon numerous factors, including the costs associated with:



| |  |  | our marketing, sales and customer support efforts;
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| |  |  | our research and development activities;
| | - |  | ----------------------------------------



| |  |  | the expansion of our facilities;
| | - |  | --------------------------------



| |  |  | the consummation of possible future acquisitions of technologies, products or businesses;
| | - |  | -----------------------------------------------------------------------------------------



| |  |  | the demand for our products and services; and
| | - |  | ---------------------------------------------



| |  |  | the refinancing of debt.
| | - |  | ------------------------

We
currently anticipate that our short-term capital requirements will be satisfied by the results of operations. However, we have outstanding loan facilities at December 31, 2007 of approximately $500.0 million, of which $25.0 million will become
due in July 2009, $50.0 million will become due in July 2010, $75.0 million will become due in July 2011, and $350.0 million will become due in July 2012. As of December 31, 2007, we also had additional long-term debt obligations of $450
million, of which $150 million becomes due in July 2011 and $300 million becomes due in November 2012. Furthermore, as of December 31, 2007, we have capital lease obligations, including the current portion, of $35.8 million, that expire in
various years through 2018. To the extent that our existing resources are insufficient to fund our activities, we may need to raise funds through public or private debt or equity financings. No assurance can be given that such additional funds will
be available or, if available, can be obtained on terms acceptable to us. If adequate funds are not available, we may have to reduce expenditures for research and development, production or marketing, which could have a material adverse effect on
our business. To the extent that additional capital is raised through the sale of equity or convertible securities, the issuance of such securities could result in dilution to our shareholders.

An impairment of goodwill and intangible assets could reduce our earnings.

At December 31, 2007, our consolidated balance sheet reflected approximately $1.1 billion of goodwill and approximately $639.1 million of intangible assets. Goodwill is recorded when the purchase price of a
business exceeds the fair market value of the tangible and separately measurable intangible net assets. U.S. generally accepted accounting principles generally require us to test goodwill for impairment on an annual basis or when events or
circumstances occur indicating that goodwill might be impaired. Long-lived assets, such as intangible assets with finite useful lives, are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount may not
be recoverable. If we determine that any of our goodwill or intangible assets were impaired, we would be required to take an immediate charge to earnings with a correlative effect on partners equity and balance sheet leverage, as measured by
debt to total capitalization.

Our strategic equity investments may result in losses.

We have made and may continue to make strategic investments in complementary businesses as the opportunities arise. We periodically review the carrying
value of these investments for impairment, considering factors, such as the most recent stock transactions, book values from the most recent financial statements, and forecasts and expectations of the investee. The results of these valuations may
fluctuate due to market conditions and other conditions over which we have no control. Estimating the fair value of non-marketable equity



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investments in life science companies is inherently subjective. If actual events differ from our assumptions and other than temporary unfavorable
fluctuations in the valuations of the investments are indicated, it could require a write-down of the investment. This could result in future charges on our earnings that could materially impact our results of operations. It is uncertain whether or
not we will realize any long term benefits from these strategic investments.

Exchange rate fluctuations may adversely affect our business.

Since we currently market our products in over 40 countries throughout the world, a significant portion of our business is conducted in
currencies other than the U.S. dollar, our reporting currency. As a result, fluctuations in value, relative to the U.S. dollar, of the currencies in which we conduct our business have caused and will continue to cause foreign currency transaction
gains and losses. Foreign currency transaction gains and losses arising from normal business operations are charged against earnings in the period when incurred. We hedge a portion of the anticipated cash flow that we expect to exchange into other
currencies, subject to our short-term financing needs. Due to the number of currencies involved, the variability of currency exposures and the potential volatility of currency exchange rates, we cannot predict the effects of exchange rate
fluctuations upon future operating results. While we engage in foreign exchange hedging transactions to manage our foreign currency exposure, there can be no assurance that our hedging strategy will adequately protect our operating results from the
effects of future exchange rate fluctuations.

We have a significant amount of long-term debt which may adversely affect our financial condition.

We have a significant amount of debt which carries with it significant debt service obligations. A high level of indebtedness increases the
risk that we may default on our debt obligations. We cannot assure you that we will be able to generate sufficient cash flow to pay the interest on our debt or that future working capital, borrowings or equity financing will be available to repay or
refinance such debt. If we are unable to generate sufficient cash flow to pay the interest on our debt, we may have to delay or curtail our research and development programs. The level of our indebtedness, among other things, could:



| |  |  | make it difficult for us to make required payments on our debt;
| | - |  | ---------------------------------------------------------------



| |  |  | make it difficult for us to obtain any necessary financing in the future for working capital, capital expenditures, debt service requirements or other purposes;
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | limit our flexibility in planning for, or reacting to, changes in our business and the industry in which we compete; and
| | - |  | ------------------------------------------------------------------------------------------------------------------------



| |  |  | make us more vulnerable in the event of a downturn in our business.
| | - |  | -------------------------------------------------------------------

The time and expense needed to obtain regulatory approval and respond to changes in regulatory requirements could adversely affect our ability to commercially distribute our products and generate revenue therefrom.

We and our customers operate in a highly regulated environment characterized by continuous changes in the governing regulatory
framework. Genetic research activities as well as products commonly referred to as genetically engineered, such as certain food and therapeutic products, are subject to governmental regulation in most developed countries, especially in
the major markets for pharmaceutical and diagnostic products (i.e., the European Union, the United States, and Japan). In the recent past, several highly publicized scientific successes (most notably in the areas of genomic research and
cloning) have stirred a public debate in which ethical, philosophical and religious arguments have been raised against an unlimited expansion of genetic research and the use of products developed thereby. As a result of this debate, some
key countries might increase the existing regulatory barriers; this, in turn, could adversely affect the demand for our products and prevent us from fulfilling our growth expectations. Furthermore, there can be no assurance that any future changes
of applicable regulations will not require further expenditures or an alteration, suspension or liquidation of our operations in certain areas, or even in their entirety.



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Changes in the existing regulations or adoption of new requirements or policies could adversely affect
our ability to sell our approved products or to seek to introduce new products in other countries around the world. Sales volumes of certain of our products in development may be dependent on commercial sales by us or by our customers of diagnostic
and pharmaceutical products, which will require pre-clinical studies, clinical trials and other regulatory clearance. Such trials will be subject to extensive regulation by governmental authorities in the United States, including the FDA,
international agencies and agencies in other countries with comparable responsibilities. These trials involve substantial uncertainties and could impact customer demand for our products. In addition, certain of our products, especially products
intended for use in in vitro diagnostics applications, are dependent on regulatory or other clearance. For example, since the European Union Directive 98/79/EC on in vitro diagnostic medical devices, or EU-IvD-D, went into effect on December 7,
2003, all products and kits which are used for in vitro diagnostic applications must be compliant with this directive. In addition to high risk products such as HIV testing systems (list A of Annex II of the directive) or blood glucose testing
systems (list B of Annex II of the directive), nucleic acid purification products which are used in diagnostic workflows are affected by this regulatory framework. The major goals of this directive are to standardize the diagnostic procedures within
the European Union, to increase reliability of diagnostic analysis and to enhance patients safety through the highest level of product safety. These goals are expected to be achieved by the enactment of a large number of mandatory regulations
for product development, production, quality control and life cycle surveillance. Our failing to obtain any required clearance or approvals may significantly damage our business in such segments.

Additionally, we may be required to incur significant costs to comply with laws and regulations in the future, and changes or additions to existing laws
or regulations may have a material adverse effect upon our business, financial condition and results of operations.

The key products and
product candidates we acquired in our acquisition of Digene are medical devices subject to extensive regulation by the FDA under the Federal Food, Drug and Cosmetic Act. Governmental bodies in other countries also have medical device approval
regulations which are becoming more extensive. Such regulations govern the majority of the commercial activities previously performed by Digene (which are now performed by us), including the indications for which these products can be used, product
development, product testing, product labeling, product storage, use of these products with other products and the manufacturing, advertising and promotion of these products for the approved indications. Compliance with these regulations is
expensive and time-consuming. With respect to our HPV test products, Digene was the first company to obtain approval of regulatory applications for HPV testing in the United States and in many countries in Europe, which adds to our expense and
increases the degree of regulatory review and oversight. The expense of submitting regulatory approval applications in multiple countries as compared to our available resources will impact the decisions we make about entering new markets.

Each medical device that we wish to distribute commercially in the United States will likely require either 510(k) clearance or pre-market
approval from the FDA prior to marketing the device for in vitro-diagnostic use. Clinical trials related to our regulatory submissions take years to execute and are a significant expense. The 510(k) clearance pathway usually takes from three to
twelve months, but can take longer. The pre-market approval pathway is much more costly, lengthy and uncertain and can take from one to three years, or even longer. It took more than four years to receive pre-market approval to offer our current
generation HPV test product to test for the presence of HPV in women with equivocal Pap test results and pre-market approval to use our HPV Test as a primary adjunctive cervical cancer screening test to be performed in conjunction with the Pap test
for women age 30 and older. The regulatory time span increases our costs to develop new products and increases the risk that we will not succeed in introducing or selling new products in the United States.

Our cleared or approved devices, including our diagnostic tests and related equipment, are subject to numerous post-market requirements. We are subject
to inspection and marketing surveillance by the FDA to determine our compliance with regulatory requirements. If the FDA determines that we have failed to comply, it can institute a wide variety of enforcement actions, ranging from a public warning
letter to more severe sanctions



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such as fines, injunctions and civil penalties, recall or seizure of our products, operating restrictions, partial suspension or total shutdown of
production, denial of our requests for 510(k) clearance or pre-market approval of product candidates, withdrawal of 510(k) clearance or pre-market approval already granted and criminal prosecution. Any enforcement action by the FDA may also affect
our ability to commercially distribute these products in the United States.

Risk of price controls is a threat to our profitability.

The ability of many of our customers to successfully market their products depends in part on the extent to which reimbursement for the costs of these
products is available from governmental health administrations, private health insurers and other organizations. Governmental and other third party payors are increasingly seeking to contain healthcare costs and to reduce the price of medical
products and services. Therefore, the biotechnology, diagnostics and pharmaceutical industries are exposed to the potential risk of price controls by these entities. If there are not adequate reimbursement levels, the commercial success of our
customers and, hence, our self, could be adversely affected.

Our business exposes us to potential liability.

The marketing and sale of our products and services for certain applications entail a potential risk of product liability, and, although we are not
currently subject to any material product liability claims, there can be no assurance that product liability claims will not be brought against us. Further, there can be no assurance that our products will not be included in unethical,
illegal or inappropriate research or applications, which may in turn put us at risk of litigation. We currently carry product liability insurance coverage, which is limited in scope and amount, but which we believe is currently appropriate for our
purposes. There can be no assurance, however, that we will be able to maintain such insurance at reasonable cost and on reasonable terms, or that such insurance will be adequate to protect us against any or all potential claims or losses.

We are subject to various laws and regulations generally applicable to businesses in the different jurisdictions in which we operate,
including laws and regulations applicable to the handling and disposal of hazardous substances. We do not expect compliance with such laws to have a material effect on our capital expenditures, earnings or competitive position. Although we believe
that our procedures for handling and disposing of hazardous materials comply with the standards prescribed by applicable regulations, the risk of accidental contamination or injury from these materials cannot be completely eliminated. In the event
of such an accident, we could be held liable for any damages that result, and any such liability could have a material adverse effect on us.

Our
holding company structure makes us dependent on the operations of our subsidiaries.

We were incorporated under Dutch law as a public
limited liability company (naamloze venootschap) and we are organized as a holding company. Currently, our material assets are the outstanding shares of our subsidiaries. We, therefore, are dependent upon payments, dividends and distributions from
our subsidiaries for funds to pay our operating and other expenses and to pay future cash dividends or distributions, if any, to holders of our Common Shares. Dividends or distributions by subsidiaries to us in a currency other than the U.S. dollar
may result in a loss upon a subsequent conversion or disposition of such foreign currency, including a subsequent conversion into U.S. dollars.

Our
debt service obligations may adversely affect our cash flow.

We have a significant amount of debt which carries with it significant
debt service obligations. A high level of indebtedness increases the risk that we may default on our debt obligations. We cannot assure you that we will be able to generate sufficient cash flow to pay the interest on our debt or that future working
capital, borrowings



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or equity financing will be available to repay or refinance such debt. If we are unable to generate sufficient cash flow to pay the interest on our debt, we
may have to delay or curtail our research and development programs. The level of our indebtedness among other things could:



| |  |  | make it difficult for us to make required payments on our debt;
| | - |  | ---------------------------------------------------------------



| |  |  | make it difficult for us to obtain any necessary financing in the future for working capital, capital expenditures, debt service requirements or other purposes;
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | limit our flexibility in planning for, or reacting to, changes in our business and the industry in which we compete; and
| | - |  | ------------------------------------------------------------------------------------------------------------------------



| |  |  | make us more vulnerable in the event of a downturn in our business
| | - |  | ------------------------------------------------------------------

Our Common Shares may have a volatile public trading price.

The market price of the Common Shares
since our initial public offering in September 1996 has increased significantly and been highly volatile. In the last two fiscal years, the closing price of our Common Shares has ranged from a high of $23.55 to a low of $11.72 on the NASDAQ,
and a high of EUR 16.24 to a low of EUR 9.55 on the Frankfurt Stock Exchange. In addition to overall stock market fluctuations, factors which may have a significant impact on the market price of the Common Shares include:



| |  |  | announcements of technological innovations or the introduction of new products by us or our competitors;
| | - |  | --------------------------------------------------------------------------------------------------------



| |  |  | developments in our relationships with collaborative partners;
| | - |  | --------------------------------------------------------------



| |  |  | quarterly variations in our operating results or those of companies related to us;
| | - |  | ----------------------------------------------------------------------------------



| |  |  | changes in government regulations or patent laws;
| | - |  | -------------------------------------------------



| |  |  | developments in patent or other proprietary rights;
| | - |  | ---------------------------------------------------



| |  |  | developments in government spending for life sciences related research; and
| | - |  | ---------------------------------------------------------------------------



| |  |  | general market conditions relating to the diagnostics, applied testing, pharmaceutical and biotechnology industries.
| | - |  | --------------------------------------------------------------------------------------------------------------------

The stock market has from time to time experienced extreme price and trading volume fluctuations that have particularly affected the market for
technology-based companies and that have not necessarily been related to the operating performance of such companies. These broad market fluctuations may adversely affect the market price of our Common Shares.

Holders of our Common Shares will not receive dividend income.

We have not paid cash dividends since our inception and do not anticipate paying any cash dividends on our Common Shares for the foreseeable future. Although we do not anticipate paying any cash dividends, any cash
dividends paid in a currency other than the U.S. dollar will be subject to the risk of foreign currency transaction losses. Investors should not invest in our Common Shares if they are seeking dividend income; the only return that may be realized
through investing in our Common Shares is through the appreciation in value of such shares.

Future sales of our Common Shares could adversely affect
our stock price.

Future sales of substantial amounts of our Common Shares in the public market, or the perception that such sales may
occur, could adversely affect the market price of the Common Shares. Under Dutch law, a company can issue shares up to its authorized share capital provided for in its articles of association. Pursuant to our Articles of Association as amended on
October 11, 2007, our authorized share capital amounts to EUR



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9.0 million, divided into 410.0 million Common Shares, 40.0 million financing preference shares and 450.0 million preference shares, with
all shares having a EUR 0.01 par value. As of December 31, 2007, we had outstanding 195.3 million Common Shares plus 12.9 million additional shares subject to outstanding stock options and awards, of which 11.2 million were
vested. A total of approximately 19.9 million Common Shares are reserved and available for issuances under our stock plans, including those shares subject to outstanding stock options and awards. The resale of Common Shares issued in connection
with the exercise of certain stock options are subject to some restrictions. All of our outstanding Common Shares are freely saleable except shares held by our affiliates, which are subject to certain limitations on resale. Additionally, holders of
notes issued by QIAGEN Finance (Luxembourg) S.A. and QIAGEN Euro Finance (Luxembourg) S.A. are entitled to convert their notes into approximately 26.9 million Common Shares, subject to adjustments in certain cases.

Provisions of our Articles of Association and Dutch law and an option we have granted may make it difficult to replace or remove management and may inhibit or delay a
takeover.

Our Articles of Association, or Articles, provide that our shareholders may only suspend or dismiss our managing and
supervisory directors against their wishes with a vote of two-thirds of the votes cast if such votes represent more than 50% of the outstanding Common Shares unless the proposal was made by the joint meeting of the Supervisory Board and the Managing
Board in which case a simple majority is sufficient. They also provide that if the members of our Supervisory Board and our Managing Board have been nominated by the joint meeting of the Supervisory Board and Managing Board, shareholders may only
overrule this nomination with a vote of two-thirds of the votes cast if such votes represent more than 50% of the outstanding Common Shares. Certain other provisions of our Articles allow us, under certain circumstances, to prevent a third party
from obtaining a majority of the voting control of our Common Shares by issuing preference shares. Pursuant to our Articles and the resolution adopted by our General Meeting on June 16, 2004, QIAGENs Supervisory Board is entitled to
resolve to issue Preference Shares in case of an intended take-over of our Company by (i) any person who alone or with one or more other persons, directly or indirectly, have acquired or given notice of an intent to acquire (beneficial)
ownership of an equity stake which in aggregate equals 20% or more of our share capital then outstanding or (ii) an adverse person as determined by the Supervisory Board. If the Supervisory Board opposes an intended take-over
and authorizes the issuance of preference shares, the bidder may withdraw its bid or enter into negotiations with the Managing Board and/or Supervisory Board and agree on a higher bid price for our shares.

In 2004, we granted an option to the Stichting Preferente Aandelen QIAGEN (the Foundation (Stichting)), subject to the conditions
described in the paragraph above, which allows the Foundation to acquire preference shares from us. The option enables the Foundation to acquire such number of preference shares as equals the number of our outstanding Common Shares at the time of
the relevant exercise of the right less one share. When exercising the option and exercising its voting rights on such shares, the Foundation must act in our interest and the interests of our stakeholders. The purpose of the Foundation option is to
prevent or delay a change of control that would not be in the best interests of us and our stakeholders. An important restriction on the Foundations ability to prevent or delay a change of control is that issuing (preference or other)
protective shares enabling the Foundation to exercise 30% or more of the voting rights without the obligation to make a mandatory offer for all shares held by the remaining shareholders, is only allowed after a public offer has been announced by a
third party. In addition, the holding of such a block of shares by the Foundation is restricted to two years and as a consequence, the size of the protective stake will need to be decreased below the 30% voting rights threshold before the two year
period lapses.

United States civil liabilities may not be enforceable against us.

We are incorporated under the laws of The Netherlands and substantial portions of our assets are located outside of the United States. In addition,
certain members of our Managing and Supervisory Boards and our officers and certain experts named herein reside outside the United States. As a result, it may be difficult for investors to effect service of process within the United States upon us
or such other persons, or to enforce outside



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the U.S. judgments obtained against such persons in U.S. courts, in any action, including actions predicated upon the civil liability provisions of U.S.
securities laws. In addition, it may be difficult for investors to enforce, in original actions brought in courts in jurisdictions located outside the United States, rights predicated upon the U.S. securities laws. There is no treaty between the
United States and The Netherlands for the mutual recognition and enforcement of judgments (other than arbitration awards) in civil and commercial matters. Therefore, a final judgment for the payment of money rendered by any federal or state court in
the United States based on civil liability, whether or not predicated solely upon the federal securities laws, would not be directly enforceable in The Netherlands. However, if the party in whose favor such final judgment is rendered brings a new
suit in a competent court in The Netherlands, such party may submit to the Dutch court the final judgment which has been rendered in the United States. If the Dutch court finds that the jurisdiction of the federal or state court in the United States
has been based on grounds which are internationally acceptable and that proper legal procedures have been observed, the Dutch court will, in principle, give binding effect to the final judgment which has been rendered in the United States unless
such judgment contravenes Dutch principles of public policy. Based on the foregoing, there can be no assurance that U.S. investors will be able to enforce against us, members of our Managing or Supervisory Boards, officers or certain experts named
herein who are residents of The Netherlands or countries other than the United States any judgments obtained in U.S. courts in civil and commercial matters, including judgments under the federal securities laws. In addition, there is doubt as to
whether a Dutch court would impose civil liability on us, the members of our Managing or Supervisory Boards, our officers or certain experts named herein in an original action predicated solely upon the federal securities laws of the United States
brought in a court of competent jurisdiction in The Netherlands against us or such members, officers or experts, respectively.

Item 4.    Information on the Company

History and Development of the Company

QIAGEN N.V. is registered under its commercial and legal name QIAGEN N.V. with the trade register (kamer van koophandel)of the
Dutch region Limburg Noord under file number 12036979. We began operations as a German company in 1986. On April 29, 1996, we were incorporated as QIAGEN N.V., a public limited liability company (naamloze vennnootschap) under Dutch law
as a holding company. Our legal seat is in Venlo, The Netherlands. Our principal executive office is located at Spoorstraat 50, 5911 KJ Venlo, The Netherlands, and our telephone number is +31-77-320-8400. As a holding company, we conduct our
business through our subsidiaries located throughout the world, including subsidiaries in Europe, Japan, Australia, North America and East Asia. Further information about QIAGEN can be found at www.qiagen.com.

Since 1986, we have developed and marketed a broad range of proprietary products for the academic and industrial research markets as well as for the
applied testing and molecular diagnostics markets. Our objective is to expand our leadership position in all markets we serve. We have experienced significant growth in the past, with a five year compound annual growth through December 31, 2007
of approximately 17% in net sales and net income, as reported under U.S. GAAP. We have funded our growth through internally generated funds, debt, and private and public sales of equity securities. In recent years, we have made a number of strategic
acquisitions and disposals expanding and focusing our technology and product offerings. Significant events in the development of our business in 2007 include:



| |  |  | In April 2007, our subsidiary QIAGEN North American Holdings, Inc. signed a definitive merger agreement with eGene, Inc. (OTCBB: EGEI) pursuant to which eGene
became a wholly-owned subsidiary of QIAGEN North American Holdings, Inc. eGene is an early-stage company located in Irvine, California that has developed and is commercializing a patented sample separation and analysis technology based on capillary
electrophoresis. The acquisition was completed in July 2007 for approximately $30.3 million including cash and equity.
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | In July 2007, we completed the acquisition of Digene Corporation (NASDAQ: DIGE) through a tender offer and subsequent merger of Digene with and into a wholly-owned
subsidiary of QIAGEN N.V. Following the completion of the merger, Digene became a wholly owned subsidiary of QIAGEN North
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



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| | American Holdings, Inc. and was subsequently renamed QIAGEN Gaithersburg, Inc. In the aggregate, net of cash acquired, the consideration totaled
approximately $1.5 billion including cash and equity. The merger combines our leading portfolio of sample and assay technologies, including a broad panel of molecular diagnostic tests, with Digenes leadership in HPV-targeted molecular
diagnostic testing, creating a global leader in molecular diagnostics outside blood screening and viral load monitoring.
| | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | In December 2007, we entered into a joint venture with BioOne* Capital to establish Dx Assay Pte Ltd, one of the first centers in Singapore for assay development in
which molecular diagnostics for infectious and genetic diseases will be developed.
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | In 2008, we were awarded an exclusive contract by the Singapore Ministry of Health to supply sample preparation solutions and molecular tests for the specific
detection of Influenza H5N1 viruses (avian flu virus). The contract with the Singapore Ministry of Health is the latest supply agreement of QIAGEN with public and private institutions engaged in H5N1 surveillance. More than 80 institutes worldwide
involved in the surveillance of avian flu infection use procedures and reagents developed and offered by QIAGEN.
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Also in 2008, we introduced the QIAsymphony SP, the first system of a novel modular processing platform, which can be integrated to automate entire
workflowsfrom sample to result. The QIAsymphony offers the highest flexibility, convenience and safety for a broad range of sample and assay applications.
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Business Overview

Description of Our Business

We believe, based on the nature of our products and technologies and on our United States and European market shares as supported by independent market
studies, that we are the worlds leading provider of innovative sample and assay technologies and products. Sample technologies are used to collect, stabilize, isolate and purify deoxyribonucleic acid (DNA), ribonucleic acid (RNA) and proteins
from any biological sample. Assay technologies are then used to make specific target biomolecules, such as the DNA of a specific virus, visible for subsequent detection and analysis. Our products are considered standards in areas such as
pre-analytical sample preparation and assay solutions in research for life sciences, applied testing and molecular diagnostics.

Our sample
technologies provide access to the content of biological samples. These include solutions for the collection, stabilization, purification, handling and storage of any analyte (DNA, RNA, protein) from any sample (blood, bone, tissue, etc.). They
ensure that a sample is processed in a reproducible, standardized method with the highest level of quality before entering the subsequent analysis phase, for which the Company provides a broad range of reagents and testing solutions.

Our assay technologies include reagents which enable the detection of such purified target analytes. We also provide closed assays, which have been
pre-configured to test for specific targets such as the influenza virus, hepatitis, HIV or herpes. QIAGEN holds a unique leadership position in HPV-testing, one of the largest and most rapidly expanding market segments in both womens health
testing and molecular diagnostics. The Company provides the only FDA approved and CE marked test which screens for the presence of high-risk HPV viruses that cause cervical cancer. QIAGEN plans to market the test worldwide through its dedicated
sales force and to offer accompanying tests for Gonorrhea, Chlamydia, and other pathogens, which are expected to form the core of our new womens health products portfolio.

Our Products

We have developed more than 500 consumable products and automated solutions. We
sell these products to academic research markets, to leading pharmaceutical and biotechnology companies, to molecular diagnostics laboratories as well as to customers in applied testing markets, such as forensics, animal or food testing, and



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pharmaceutical process control. These products enable our customers to efficiently pursue their research and commercial goals that require the use of nucleic
acids.

The main categories of our products include:



| |  |  | Consumables:
| | - |  | ------------

Our consumable
products include our sample and assay technologies. Sample technologies are used to collect, stabilize, isolate and purify DNA, RNA and proteins from all biological samples such as blood or tissue. Assay technologies like our molecular diagnostic
assays are used to make such isolated biomolecules visible. We offer most of our sample and assay consumable products, which account for about 90% of our business, in kit form to maximize customer convenience and reduce user error. These kits
contain all necessary reagents and buffers, and a technical handbook that includes a detailed protocol and background information. Each kit is sufficient to support a number of applications varying from one to one thousand depending on the kit. Each
kit is covered by our quality guarantee.

Major applications for our consumable products are plasmid DNA purification; DNA testing for HPV,
RNA stabilization and purification; genomic and viral nucleic acid purification; nucleic acid transfection; polymerase chain reaction (PCR) amplification; reverse transcription; DNA cleanup after PCR and sequencing; DNA cloning and protein
purification. In 2005, we began offering validated PCR assays which allow PCR-based detection of viral, bacterial and parasite, human and animal pathogens as well as pharmacogenomic genotyping. In 2007, we acquired Digene Corporation and began
offering the HC2 HPV Test, a signal amplified test for the Human Papillomavirus for use in cervical cancer screening programs. The majority of assays are validated with either manual QIAamp sample preparation or automated MagAttract sample
preparation from QIAGEN and CE-labeled according to the IvD-Directive in EU.



| |  |  | Instrumentation:
| | - |  | ----------------

Our automated
systems perform automated nucleic acid preparation of the above mentioned consumables in low, medium or high throughput scale as well as reaction set-up, allowing customers to perform reliable low- to high-throughput nucleic acid sample preparation,
assay setup and other laboratory tasks.

Our automated systems offer walk-away automation of sample and assay technologies in low, medium or
high throughput scale, as well as reaction set-up and other laboratory tasks. We also sell instruments to our OEM partners. In early 2007, we launched the QIAcube, a novel sample processing platform incorporating novel and proprietary technologies
which allow users in research in life sciences, applied testing and molecular diagnostics to fully automate the processing of almost all our consumable products. The QIAcube received the distinguished New Product Award, or NPA, Designation of the
Association for Laboratory Automation, or ALA, in February, 2007 and the QIAsymphony, which was introduced in January 2008, received the ALA NPA in 2008.



| |  |  | Other:
| | - |  | ------

A very small part of
our business revenues comes from custom services, such as whole genome amplification services, DNA sequencing, and non-cGMP DNA production on a contract basis. We also sell and/or license technology.

In 2007, we launched 72 new products, including sample and assay technologies for research in the areas of epigenetics, gene expression, micro RNA,
proteomics, RNAi, applied testing and molecular diagnostics as well as platform solutions such as the very successful QIAcube.

Research and
Development

By focusing our resources on our core expertise Sample & Assay Technologies, we can invest more in
research and development than we believe is typical in our industry. Over 460 employees in research and development, who work in five centers of excellence on three different continents, constantly develop new



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applications that push the frontiers of science further. Rapid, proven innovation cycles promise fast introductions of new technologies which meet the needs
of todays labs. Our investment in research and development accounts for more than 10% of our sales. Our total research and development expenses in 2007, 2006 and 2005 were approximately $64.9 million, $41.6 million, and $35.8 million,
respectively. We have fast, proven innovation cycles, with four percent of 2007 revenue growth stemming from new products launched in 2007. Our comprehensive intellectual property portfolio spans over 630 granted patents and more than 600 pending
applications.

Our product development efforts are focused on expanding our existing products and developing innovative new products in
selected areas where we have expertise and have identified substantial unmet market needs. We intend to maintain our technology leadership position through investments in product improvements, product extensions, and innovative new approaches. We
believe that improvements in instrumentation will strengthen our leadership position in the automation of pre-analytical processing applications and generate an increased demand for our consumable products.

Sales and Marketing

We market our products in
more than 40 countries throughout the world. We have established subsidiaries in the markets that we believe have the greatest sales potentialincluding but not limited to the United States, Germany, the United Kingdom, Switzerland, France,
Japan, Australia, Canada, Italy, and throughout Asia. We have established a network of highly experienced marketing personnel and employ a dedicated field sales force of over 900 people, who sell our products and provide direct support to customers.
A significant number of our marketing and sales staff are experienced scientists with academic degrees in molecular biology or related areas. We also have specialized independent distributors and importers.

Our marketing strategy is focused on providing high-quality products that offer customers unique advantages, coupled with a commitment to technical
excellence and customer service. We have developed a range of marketing tools designed to provide customers with direct access to technical support and to inform them of new product offerings, as well as to enhance our reputation for technical
excellence, high-quality products, and commitment to customer service. One such tool is our technical service hotline, which allows existing or potential customers to discuss, via phone and e-mail, a wide range of technical questions regarding our
products and related molecular biology procedures with Ph.D. and M.Sc. scientists in our technical service group, who provide this advice and training. Frequent communication with customers enables us to identify market needs, to gain early insight
into new developments and business opportunities, and to respond with new products.

To enhance the knowledge base of clinicians and to
provide for physician-directed marketing of our products, we have sales representatives dedicated to educating physicians, nurses and other healthcare professionals about the benefits of HPV testing using hybrid capture 2, or HC2,
technology. Additionally, we have implemented direct-to-consumer (DTC) advertising campaigns designed to educate women about the link between HPV and cervical cancer and the availability of our HC2 HPV Test. We plan to continue the DTC
campaign during 2008.

We also distribute several publications, including our annual catalog, to existing and potential customers
worldwide, providing new product information, product updates, and articles contributed by customers and by our scientists about existing and new applications for our products. In addition, we advertise in leading scientific journals such asScience,and hold numerous scientific seminars, in which our scientists present technical information at leading academic and industrial research institutes worldwide. We conduct direct mail campaigns to announce new products or offer special
sales promotions, and also offer various personalized electronic newsletters for our worldwide customers that provide helpful hints and information for molecular biology applications. Our web site (www.qiagen.com) contains a full on-line
product catalog and online ordering system, various support tools and resources. Some information is available on our website in French and German to support these local markets. We also have a Japanese language site (www.qiagen.co.jp). The
information contained in, or that can be accessed through, our website is not part of this Annual Report.



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In addition to keeping our customers informed of new product offerings, we also offer an inventory
consignment program. The QIAcabinet is a storage cabinet owned by us and placed in customer laboratories at their request. The QIAcabinet is stocked with our products, offering customers the convenience of immediate access, thereby reducing product
reorder procedures and shipping costs. We monitor cabinet inventory and bill the customers at regular intervals as the products are used. We believe that our QIAcabinet helps us maintain our competitive position while also reducing distribution
costs and increasing our visibility in the laboratory.

Principal Markets

From our inception, we have believed that nucleic acids and proteins would play an increasingly important role in molecular biology and that major new
commercial uses of nucleic acids would be developed. We have been supplying customers with proprietary products for the processing of nucleic acids since 1986. Customers include major academic institutions and governmental laboratories, such as the
United States National Institutes of Health, or NIH, as well as leading pharmaceutical and biotechnology companies. In addition, fundamental developments in recent years have created significant new opportunities for us in the emerging markets of
nucleic acid-based molecular diagnostics, such as HPV-testing, and applied testing, such as forensics, veterinary diagnostics, testing of genetically modified organism, or GMO, and other food testing, drug discovery and development. In response to
these opportunities, we are currently targeting our products and marketing activities to each of these markets.

Research Market

The worldwide research market for nucleic acid and protein separation and purification products is comprised of an estimated 45,000 academic and
industrial research laboratories with more than 400,000 researchers from leading academic institutions, diagnostics companies and laboratories, biotechnology companies and pharmaceutical companies. A substantial portion of this market continues to
utilize traditional, labor intensive methods for nucleic acid separation and purification, and we estimate that 15 percent of all molecular biology research time is spent on such processes. We recognized the opportunity to replace the traditional
methods with reliable, fast, and high-quality nucleic acid separation and purification technologies and products. We concentrated our product development and marketing efforts on this market and now offer over 500 nucleic acid sample processing
products to customers. We also offer a broad and innovative portfolio for the expression, purification and fractionation of proteins. We believe that we are the technology leader in this growing research market and that we are well positioned to
increase sales and expand our share of the research market as laboratories continue to convert from traditional methods to newer technologies such as ours. Based on estimates of the number of sample preparations being performed each year, we believe
that the potential worldwide research market for our nucleic acid purification products exceeds $1 billion, as the majority of the market currently uses home-brew methodology. In addition, we believe that an additional $800 million is spent annually
in this market on PCR enzymes and reagents. We have expanded our product base for PCR amplification and reverse transcription and continue to develop products for the PCR-related market segment. In 2005 we were one of the first companies to enter
into a broad licensing agreement with Applied Biosystems Group regarding real-time PCR technology. This agreement enhances our value as a leading supplier of a broad range of real-time PCR technologies. These real-time PCR technologies are optimized
for use with our market- and technology-leading preanalytical solutions. Our PCR reagent portfolio is also a critical component for ready-to-use real-time PCR assays which we offer and which are linked to our innovative RNAi assay offering.

Molecular Diagnostics Market

We believe that the molecular diagnostics market represents a significant market for nucleic acid sample technology products. We believe that the advent of PCR and other amplification technologies has made the prospect of nucleic acid-based
molecular diagnostics feasible. Molecular diagnostics have fundamental advantages over traditional diagnostic technologies, such as immunoassays, in potential applications and clinical specificity and sensitivity.



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This new generation of molecular diagnostics can be used, for example, to detect or identify
micro-organisms, cancer cells, bacteria and viruses (including HIV) by searching for their nucleic acid sequences. In order to prove that a disease is present in a patient, the unique sequence of the target nucleic acid causing the disease must be
known, and the sequence in the sample must be amplified to facilitate detection. Potential commercial applications for nucleic acid-based molecular diagnostics include infectious disease diagnostics in bio banks, HLA typing for bone marrow and organ
transplantation, genetic testing for predisposition to cancers and other common diseases, and genetic fingerprinting of humans, animals and plants.

We believe clinical sensitivity and specificity can be greatly enhanced by using nucleic acid-based information. In many cases, conventional diagnostic tests also lack the clinical sensitivity and specificity to
provide definitive diagnoses during the early stages of disease. Clinical sensitivity is typically regarded as the measure of a tests ability to accurately detect the presence of disease. A false negative test result can lead to providing a
negative or normal diagnosis to a patient who has the disease. Clinical specificity is typically regarded as the measure of a tests ability to correctly identify the absence of disease when it is not present. A false positive test result can
lead to providing a positive or abnormal diagnosis to a patient who does not have disease.

For detection of HPV, we sell our products in
the United States primarily for the two FDA-approved indications: adjunctive primary screening with a Pap test for women age 30 and older, and follow-up testing of equivocal Pap test results in women of any age. In Europe and the rest of the world,
HPV testing is in varying stages of research and adoption, with most use limited to follow-up for equivocal Pap tests. We are aware of an increasing number of clinical trials being conducted to explore the use of HPV testing for primary screening,
both with a Pap test or as a stand-alone initial test, as well as for proof of clearance or cure after treatment for diagnosed cervical disease or cancer.

The success of molecular diagnostics will depend on the ability to analyze purified nucleic acid samples from a variety of specimens, including blood, tissue, body fluids and stool, and on automation so that hundreds
of samples can be handled concurrently. Other key factors will be the convenience, versatility, and reliability of the nucleic acid separation and purification procedures. Our automated systems series has been developed to handle low-, medium-, and
high-throughput nucleic acid sample preparation and handling tasks in molecular biology laboratories, clinical laboratories, blood banks, forensic projects, and genomics projects. Nucleic acid samples purified on our instruments are ready for use in
the demanding and sensitive downstream assays performed in molecular diagnostic applications. We offer closed and open assay technologies. The open platforms, such as real-time PCR or endpoint PCR, contain PCR reagents. Closed platforms, diagnostics
with predefined targets, include Multiplexing and other pathogen detection assays. In order to broadly address the molecular diagnostics market, in May 2005 we acquired artus Gesellschaft fur molekularbiologische Diagnostik und Entwicklung mbH,
subsequently renamed QIAGEN Hamburg GmbH, which offers a broad range of real-time PCR assays for viral and bacterial pathogen detection that are complementary to our sample preparation kits. The majority of these assays are validated with
either manual QIAamp sample preparation or automated MagAttract sample preparation and CE-labeled according to the EU-IvD-D. Assays are marketed directly to end customers by our sales channels and selected assays are marketed by major diagnostic
partners with access to customers complementary to our customers. In addition, we intend to enter into partnerships or other agreements with established companies in the molecular diagnostics market in order to broaden the distribution of our
products.

We expect molecular diagnostic tests to create a fundamental shift in both the practice of medicine and the economics of the
diagnostics industry. Molecular based diagnostic tests are expected to create an increased emphasis on preventative and predictive molecular medicine. Physicians will be able to use these tests for the early detection of disease and to treat
patients on a personalized basis, allowing them to select the most effective therapy with the fewest side effects. In addition, the relatively straight-forward format and significant automation capabilities of our tests allow ease of laboratory use,
reducing overall processing costs.



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Applied Testing Market

We believe that emerging applied testing markets such as forensics, veterinary and food, offer great opportunities for standardized sample preparation and assay solutions. Successes in crime cases due to DNA analyses,
public debates about GMO and food safety as well as bioterrorism risks, have increased the value of the use of molecular based methods. These methods are performed by well trained researchers in fully equipped laboratories as well as by less trained
personnel calling for easy-to-use, reproducible and standardized methods. Our manual DNA and RNA purification methods and the automated solutions on BioRobot EZ1, BioSprint 15 and 96, as well as our amplification enzymes and quantitative assays
address the needs in these markets. We market a range of assays to end users in applied testing markets, such as veterinary diagnostics and biodefense laboratories.

Seasonality

Our business does not experience predictable seasonality. Historically, a
significant portion of our sales have been to researchers, universities, government laboratories and private foundations whose funding is dependent upon grants from government agencies, such as the U.S. NIH and similar domestic and international
agencies. To the extent that our academic customers experience increases, decreases or delays in funding arrangements, and to the extent that any of our customers activities are slowed, such as during vacation periods or due to delays in the
approval of governmental budgets, including the U.S. federal governments budget, we may experience fluctuations in sales volumes during the year or delays from one period to the next in the recognition of sales.

Revenue by Geographic Region

The table below
sets forth total revenue during each of the past three fiscal years by geographical market, which includes revenue from all of our product and service offerings. It is not practicable to provide a detail of revenues by category of activity. Net
sales are attributed to countries based on the location of the subsidiary making the sale as certain subsidiaries have international distribution. See Note 19 to our consolidated financial statements included in Item 18. Financial
Statements for additional information with respect to operations by geographic region.



|                          |  |      |               |   |      |   |              |      |  |   |              |  
|------------------------- |  | ---- | ------------- | - | ---- | - | ------------ | ---- |  | - | ------------ | -
|Net Sales                 |  | 2007 |               |   | 2006 |   |              | 2005 | 
|North America*            |  | $    | 465,878,000   |   |      | $ | 318,865,000  |      |  | $ | 285,242,000  |  
|Germany*                  |  |      | 270,173,000   |   |      |   | 220,325,000  |      |  |   | 187,381,000  |  
|Switzerland*              |  |      | 56,615,000    |   |      |   | 40,044,000   |      |  |   | 36,957,000   |  
|Asia*                     |  |      | 71,168,000    |   |      |   | 49,875,000   |      |  |   | 35,266,000   |  
|Rest of World*            |  |      | 148,082,000   |   |      |   | 109,025,000  |      |  |   | 88,924,000   |  
|Corporate*                |  |      | 350,000       |   |      |   | 525,000      |      |  |   | 985,000      |  
|                          |  |      |               |   |      |   |              |      |  |   |              |  
|Subtotal                  |  |      | 1,012,266,000 |   |      |   | 738,659,000  |      |  |   | 634,755,000  |  
|Intersegment Elimination+ |  |      | (362,492,000  | ) |      |   | (272,881,000 | )    |  |   | (236,360,000 | )
|                          |  |      |               |   |      |   |              |      |  |   |              |  
|Total                     |  | $    | 649,774,000   |   |      | $ | 465,778,000  |      |  | $ | 398,395,000  |  
|                          |  |      |               |   |      |   |              |      |  |   |              |  

| | 
| | 

| | * | Includes net sales to affiliates.
| | - | ---------------------------------

| | + | Represents intercompany sales between affiliates, which are accounted for by a formula based on local list prices and eliminated in consolidation.
| | - | --------------------------------------------------------------------------------------------------------------------------------------------------

Intellectual Property, Proprietary Rights and Licenses

We have made and may continue to make investments in intellectual property. In the years ended December 31, 2007, 2006 and 2005, our purchases of intangible assets have totaled approximately $24.1 million, $6.4 million, and $15.3 million,
respectively. We do not depend solely on any individual patent or technologies owned or licensed by us. We are however significantly dependent in the aggregate on technology that we own or license.



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Therefore, we consider the protection of our proprietary technologies and products as the key to the success of our business. We rely on a combination of
patents, licenses and trademarks to establish and protect our proprietary rights in our technologies and products. We currently own 109 issued patents in the United States, 70 issued patents in Germany and 434 issued patents in other major
industrialized countries, and have 619 pending patent applications. Worldwide, we own 613 granted patents. Our policy is to file patent applications in Western Europe, the United States and Japan. U.S. patents have a term of 17 years from the date
of issue for patents issued from applications submitted prior to June 8, 1995, and 20 years from the date of filing of the application in the case of patents issued from applications submitted on or after June 8, 1995. Patents in most
other countries have a term of 20 years from the date of filing the patent application. We intend to aggressively prosecute and enforce our patents and otherwise protect our proprietary technologies. We also rely on trade secrets, know-how,
continuing technological innovation and licensing opportunities to develop and maintain our competitive position.

Our practice is to
require employees, consultants, outside scientific collaborators, sponsored researchers and other advisors to execute confidentiality agreements upon the commencement of their relationships with us. These agreements provide that all confidential
information developed by or made known to the individual during the course of the individuals relationship with us is to be kept confidential and not disclosed to third parties, subject to a right to publish certain information in scientific
literature in certain circumstances and to other specific exceptions. In the case of our employees, the agreements provide that all inventions conceived by the individual in the course of their employment will be our exclusive property.

See Risk Factors included in Item 3 above for details regarding risks related to our reliance on patents and proprietary rights.

Partnerships, Alliances and Acquisitions

Our strategy includes the use of strategic alliances to augment our product development efforts with complementary technologies and to leverage our marketing and distribution capabilities with respect to select market
opportunities. In order to expand our business, we also intend to continue to pursue strategic investments in our acquisitions of complementary businesses and technologies as the opportunities arise. We currently develop integrated solutions for and
together with many manufacturers from pharma and diagnostics, including Roche Diagnostics, Abbott Laboratories and Siemens.

Competition

We believe that our primary competition in sample technology products involves traditional separation and purification methods, such as
phenol extraction, cesium chloride density gradient centrifugation, and precipitation. These methods utilize widely available reagents and other chemicals supplied by companies, such as Sigma-Aldrich Corp. and Roche Diagnostics GmbH (Applied
Sciences Division). We compete with such methods through our innovative technologies and products, which offer a comprehensive solution for nucleic acid collection, pre-treatment, separation and purification needs and provide significant advantages
over traditional methods with respect to speed, reliability, convenience, and ease of use.

We also experience, and expect to continue to
experience, competition in different segments of our business from other companies providing sample preparation products in kit form and assay solutions. These competitors include: Promega Corp., Invitrogen Corp., Millipore Corp., Roche Diagnostics,
and Macherey-Nagel GmbH for nucleic acid separation and purification; Applied Biosystems, Invitrogen Corp. and Promega Corp for assay solutions; Invitrogen Corp. and Promega Corp. for transfection reagents; and Sigma-Aldrich Corp. and Fisher
Scientific for protein fractionation products. We believe that our proprietary technologies and products offer significant advantages over competitors products with regard to purity, speed, reliability and ease-of-use.

We also face competition from well established diagnostic technologies, such as cytology and, particularly in Europe, from emerging alternative HPV
testing approaches, such as research-based PCR, other indicators of disease and other home brew testing methods developed by laboratories. With the increasing acceptance of the



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importance of HPV testing, we expect such competition will intensify. Our competitors include molecular diagnostic companies, such as Roche Diagnostics,
Third Wave Technologies, Inc. and Gen-Probe, Inc., which are developing or marketing HPV products that have not been approved by the FDA, and manufacturers of liquid-based Pap tests, such as Hologic, Inc. (formerly Cytyc Corp.) and Beckton Dickinson
and Company (formerly TriPath Imaging).

With respect to our other diagnostic test products, the medical diagnostics and biotechnology
industries are subject to intense competition. Some of our products, such as our tests for Chlamydia, Gonorrhea, hepatitis B virus and cytomegalovirus, compete against existing screening, monitoring and diagnostic technologies, including tissue
culture and antigen-based diagnostic methodologies. Our competitors for gene-based diagnostic probes include Roche Diagnostics, Abbott Laboratories, Siemens and Gen-Probe. We believe the primary competitive factors in the market for gene-based probe
diagnostics and other screening devices are clinical validation, performance and reliability; ease of use; standardization; cost; proprietary position; the competitors share of the existing market; access to distribution channels; regulatory
approvals; and availability of reimbursement.

We believe that our competitors do not have the same comprehensive approach to sample and
assay technologies and therefore cannot provide the broad range of technologies and depth of products and services that we offer. With our complete range of manual and fully automated solutions, we believe we offer the value of standardization of
procedures and therefore more reliable results. We also believe that our integrated strategic approach of sample and assay technologies gives us a competitive advantage. The quality of sample preparationa field in which we have a unique market
and leadership positionis a key prerequisite for reliable molecular assay solutions which increasingly are being applied in emerging markets, such as applied testing and molecular diagnostics. Regarding our HPV test products, we believe we
have a competitive advantage because our HPV test products are FDA-approved for two indications and because, as clinical studies have shown, our HPV test products, used in conjunction with the Pap test, have demonstrated their ability to enable
significant diagnostic capabilities due to high clinical sensitivity and high negative predictive value.

Our existing and potential
competitors may be in the process of seeking FDA or foreign regulatory approvals for their respective products. Our continued future success will rely in large part on our ability to maintain our technological advantage over competing products,
expand our market presence and preserve customer loyalty. There can be no assurance that we will be able to compete effectively against our past, present or future competitors or that development by others will not render our technologies or
products non-competitive.

Suppliers

As part of our quality assessment procedures, we periodically evaluate the performance of our raw material suppliers, potential new alternative sources of such materials, and the risks and benefits of reliance on our existing suppliers. We
buy materials for our products from many suppliers, and are not dependent on any one supplier or group of suppliers for our business as a whole. Raw materials generally include chemicals, raw separation media, biologics, plastics and packaging. Raw
materials are generally readily available at competitive, stable prices from a number of suppliers. Certain raw materials are produced under our specifications, so we closely monitor stock levels to maintain adequate supplies. We believe we maintain
inventories of raw materials at a sufficient level to ensure reasonable customer service levels, and to guard against normal volatility in availability.

Government Regulations

We are not subject to direct regulation other than regulation generally applicable to
businesses pursuant to various laws and regulations in effect in the different jurisdictions in which we operate, including laws and regulations applicable to environmental matters, such as the handling and disposal of hazardous wastes. Our research
and development activities involve the controlled use of small amounts of hazardous materials,



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chemicals and radioactive compounds. Although we believe that our safety procedures for handling and disposing of such materials comply with the standards
prescribed by applicable regulations, such as the United States Occupational Safety and Health Administrations, or OSHA, Hazard Communication and Occupational Exposure to Hazardous Chemicals in Laboratories standards, the risk of accidental
contamination or injury from these materials cannot be completely eliminated. In the event of such an accident, we could be held liable for any damages that result and any such liability could have a material adverse effect on us.

We also comply with the OSHA Bloodborne Pathogens standard and the Center for Disease Control/National Institutes of Health Biosafety in Microbiological
and Biomedical Laboratories standards for the handling of biological materials as well as comply with the United States Department of Transportation and International Air Transport Association regulations for the shipping of our kits which contain
materials classified as hazardous. There are other federal, state and local laws and regulations applicable to our business, including those of the United States Environmental Protection Agency and the Maryland Department of the Environment.
However, we do not expect that compliance with governmental regulations to which we are subject will have a material effect on our capital expenditures, earnings or competitive positions.

International sales of in vitro diagnostic (IVD) medical devices are subject to the regulatory requirements of each country or defined economic
region, such as the European Union. The regulatory review process varies from country to country and many countries also impose product standards, packaging requirements, labeling requirements and import restrictions on devices.

The Food and Drug Administration is responsible for the safety of food, drug, medical device, biological, animal feed and drugs, cosmetic, and
radiation-emitting products sold in the United States. QIAGEN products sold to U.S. clinical labs are IVD medical devices subject to varying levels of FDA regulation based on their potential public health risk. Pursuant to the Federal Food, Drug,
and Cosmetic Act, and the related regulations, the FDA regulates product development, product testing, product labeling, product storage, pre-market clearance or approval, manufacturing, advertising, promotion, product sales and distribution of
medical devices.

In the United States, IVD products are classified into 3 classes based on their potential health risk. Low risk products
(e.g. QIAamp sample extraction products) are Class I. Typically exempt from FDA premarket submission requirements, manufacturers must document manufacturing/quality control procedures and testing data supporting product performance claims. Automated
Class I products (e.g., BioRobot MDx DSP, EZ1 and BioRobot DSP) marketed to clinical labs also require design control documentation.

Moderate risk products (e.g., hybrid capture Chlamydia and Gonnorhea tests, PreAnalytix PaxGene Blood RNA Kit) are Class II, and most require FDA review of a premarket notification, or 510(k), submission prior to sale in the US. The
intended use and technology principle must be substantially equivalent to another legally marketed U.S. product. Internal analytical and external clinical data supporting product performance claims are included in the submission. After a 90 day
review, FDA may issue a 510(k) clearance letter stating that the product is substantially equivalent to another and the product can now be sold in the US. On average, two 90 day FDA review cycles are typically required after submission to obtain
market clearance of a new Class II IVD product.

High risk products, such as our HC2 HPV test are Class III, and require FDA approval prior
to product sale. The premarket approval application (PMA) includes analytical and external clinical data to prove product safety and effectiveness. PMA submissions also include the product handbook and description of manufacturing/quality control
procedures. Product changes after approval typically require a supplemental submission with FDA review cycles ranging from 30 to 180 days.

For Class I and II products, FDA may review manufacturing information during regular GMP audits of the manufacturing site. For Class III products, FDA conducts mandatory Quality System/Good Clinical Practice audits of the manufacturing and
external clinical data collection sites during its 180 day review.



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Any products manufactured or distributed by us pursuant to FDA clearances or approvals are subject to
pervasive and continuing regulation by the FDA, including record keeping requirements and reporting of adverse experiences with the use of the device. Device manufacturers are required to register their establishments and list their devices with the
FDA and are subject to periodic inspections by the FDA and certain state agencies. Noncompliance with applicable FDA requirements can result in, among other things, fines, injunctions, civil penalties, recalls or seizures of products, total or
partial suspension of production, failure of the government to grant pre-market clearance or pre-market approval for devices, withdrawal of marketing clearances and/or approvals and criminal prosecution. The FDA also has the authority to request
repair, replacement or refund of the cost of any device that we manufacture or distribute.

The FDA enforces regulations prohibiting the
promotion of devices for unapproved (or off label) uses and the promotion of devices for which pre-market clearance or approval has not been obtained. Any failure by us to comply with these requirements can result in regulatory
enforcement action by the FDA and possible limitations on the promotion and/or sale of our products.

Receipt and maintenance of regulatory
authorization to market and sell our products is vital to our future success. In addition to seeking regulatory authorizations for our own products, we work with other companies to seek regulatory approval for use of their specimen collection
products to provide the specimens necessary to perform our diagnostic tests. The time, money and resources required for new product approvals by the FDA and foreign government authorities may be unpredictable and the necessary approvals or
clearances may not be granted on a timely basis or at all. Delays or a failure to receive, such approvals or clearances could have a material adverse effect on our business, financial condition and results of operations.

Organizational Structure

QIAGEN N.V. is the holding
for more than 40 consolidated subsidiaries, the majority of which have the primary function of the distribution of our products and services on a regional basis. Certain subsidiaries also have research and development or production activities. A
listing of our significant subsidiaries, all of which are wholly owned, and their jurisdiction of incorporation, is included in Exhibit 8.1 to this Annual Report.

Description of Property

Our production and manufacturing facilities for consumables products are located in Germany, the
United States and China. Our instrument production facility is located in Switzerland. Over the last several years, we have made investments in automated and interchangeable production equipment to increase our production capacity and improve
efficiency. Our production and manufacturing operations are highly integrated and benefit from sophisticated inventory control. Our production management personnel are highly qualified and many have engineering degrees. We have also installed and
continue to expand production-planning systems that are included in our integrated information and control system based on the business software package SAP R/3 from SAP AG. Worldwide, we use SAP software to integrate our material operating
subsidiaries. Capital expenditures for property, plant and equipment totaled $34.5 million, $29.0 million and $13.7 million for the years ended December 31, 2007, 2006 and 2005.

We have established a quality program, including standard manufacturing and documentation procedures, intended to ensure that products are manufactured
and tested in accordance with the FDAs Quality System Regulations, which imposes current Good Manufacturing Practice (GMP) requirements. For GMP production, special areas were built in our facilities in Hilden, Germany, and Germantown and
Gaithersburg, Maryland. These facilities operate in accordance with GMP requirements.

The consumable products manufactured at QIAGEN GmbH
and QIAGEN Hamburg GmbH, both in Germany, and QIAGEN Sciences, Inc. and QIAGEN Gaithersburg, Inc., both in Maryland, are produced under ISO 9001: 2000, ISO 13485:2003 for Medical Devices, and ISO 13485:2003 CMDCAS, and the EC Directive



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98/79/EC for medical devices. QIAGEN Instruments AG in Switzerland, which produces the majority of our instrumentation product line, is also ISO
9001: 2000 and 13485:2003 certified. Our certifications form part of our ongoing commitment to provide our customers high quality, state-of-the-art sample and assay technologies and to the development of our Total Quality Management
system.

Our facilities in Hilden, Germany currently occupy a total of approximately 509,000 square feet, some of which is leased pursuant
to separate contracts, the last of which expires in 2018. In two separate transactions between July 1997 and February 1998, we purchased a parcel of land directly adjacent to our existing German facilities, measuring approximately 549,000 square
feet. During 2003, we completed a 115,000 square foot production facility and a 149,000 square foot administration building on this land. During 2005, we purchased our leased cGMP production facilities in Germany and began the planning for a new
logistics center in Hilden. Construction on the new facility began in August 2006 and was completed in 2007. The new logistics center comprises approximately 61,000 square feet and cost approximately EUR 9.0 million (approximately $13.1
million). In 2008, we may make further investments in the logistics center of up to an additional EUR 1.0 million.

Our production capacity
is increased through our manufacturing and research facilities in the United States. QIAGEN Sciences, Inc. owns a 24-acre site in Germantown, Maryland. The 200,000 square foot Germantown facility consists of several buildings in a campus-like
arrangement and is intended to accommodate over 300 employees. There is room for future expansion of up to 400,000 square feet of additional facility space. We lease a facility in Gaithersburg, Maryland, comprising a total of 140,000 square feet for
manufacturing, warehousing, distribution and research operations. We are currently contemplating an expansion of our Germantown facility which would expand our warehousing and distribution center by approximately 32,500 square feet. We are still in
the planning stage and construction could potentially begin in 2008 with completion in 2009. This new construction would be financed either through working capital or new borrowings.

Other subsidiaries throughout the world lease smaller amounts of space. Our corporate headquarters are located in leased office space in Venlo, The
Netherlands.

We believe that our existing and planned production and distribution facilities can support our anticipated production needs
for the next 36 months. Our production and manufacturing operations are subject to various federal, state, and local laws and regulations including environmental regulations. We believe we do not have any material issues relating to these laws and
regulations.

Item 4A.    Unresolved Staff Comments

Not applicable.

Item 5.    Operating and Financial Review and Prospects

This section contains a
number of forward-looking statements. These statements are based on current management expectations, and actual results may differ materially. Among the factors that could cause actual results to differ from managements expectations are those
described in Risk Factors above, and Forward-looking and Cautionary Statements below.

Forwardlooking and
Cautionary Statements

This report contains forward-looking statements that are subject to certain risks and uncertainties. These
statements can be identified by the use of forward-looking terminology, such as believe, hope, plan, intend, seek, may, will, could, should,
would, expect, anticipate, estimate, continue or other similar words. Such statements are based on managements current expectations and are subject to a number of factors and
uncertainties that could cause actual results to differ materially from those described in the



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forward-looking statements. We caution investors that there can be no assurance that actual results or business conditions will not differ materially from
those projected or suggested in such forward-looking statements as a result of various factors, including, but not limited to, the following: risks associated with our expansion of operations, including the acquisition of new businesses; variability
in our operating results from quarter to quarter; management of growth, international operations, and dependence on key personnel; intense competition; technological change; our ability to develop and protect proprietary products and technologies
and to enter into collaborative commercial relationships; our future capital requirements; general economic conditions and capital market fluctuations; and uncertainties as to the extent of future government regulation of our business. As a result,
our future development efforts involve a high degree of risk. For further information, refer to the more specific risks and uncertainties discussed under the caption Risk Factors in Item 3 and throughout this Form 20-F.

Results of Operations

Overview

We believe, based on the nature of our products and technologies and our United States and European market shares,
as supported by independent market studies, that we are the worlds leading provider of innovative sample and assay technologies and products. Sample technologies are used to isolate DNA, RNA and proteins from any biological sample. Assay
technologies are then used to make specific target biomolecules, such as the DNA of a specific virus, visible for subsequent analysis. Our products are considered standards in areas, such as pre-analytical sample preparation and assay solutions in
research for life sciences, applied testing and molecular diagnostics.

We have developed more than 500 consumable products and automated
solutions. We sell these products to academic research markets, leading pharmaceutical and biotechnology companies, and molecular diagnostics laboratories as well as customers in applied testing markets, such as forensics, animal or food testing,
and pharmaceutical process control. These products enable our customers to efficiently pursue their research and commercial goals that require the use of nucleic acids.

We market our products in more than 40 countries throughout the world. We have established subsidiaries in the markets that we believe have the greatest sales potentialincluding but not limited to the United
States, Germany, the United Kingdom, Switzerland, France, Japan, Australia, Canada, Italy, and throughout Asia. We also have specialized independent distributors and importers. We employ more than 2,600 people in over 20 locations worldwide.

Since 2002, we have had a compound annual growth rate of approximately 17% in net sales and net income based on reported U.S. GAAP
results. We have funded our growth through internally generated funds, debt, and private and public sales of equity securities. In recent years, we have made a number of strategic acquisitions and disposals expanding and focusing our technology and
product offerings.

These transactions include:



| |  |  | In July 2007, we completed the acquisition of Digene Corporation (NASDAQ: DIGE) through a tender offer and subsequent merger of Digene with and into a wholly owned
subsidiary of QIAGEN N.V. Following the completion of the merger, Digene became a wholly owned subsidiary of QIAGEN North American Holdings, Inc. and was subsequently renamed QIAGEN Gaithersburg, Inc. The merger combines our leading portfolio of
sample and assay technologies, including a broad panel of molecular diagnostic tests, with Digenes leadership in HPV-targeted molecular diagnostic testing, creating a global leader in molecular diagnostics outside blood screening and viral
load monitoring.
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | In July 2007, we completed our acquisition of eGene, Inc. (OTCBB: EGEI) pursuant to which eGene became a wholly-owned subsidiary of QIAGEN North American Holdings,
Inc. eGene is an early-stage company located in Irvine, California that has developed and is commercializing a patented sample separation and analysis technology based on capillary electrophoresis.
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



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| |  |  | In the fourth quarter of 2006, we completed the acquisition of Genaco Biomedical Products, Inc., located in Huntsville, Alabama. Genaco is an early-stage company
applying a proprietary PCR-based multiplexing technology, Tem-PCR, to develop Templex molecular diagnostic tests. Multiplexing is a rapidly emerging segment in molecular diagnostics and is also highly synergistic with our portfolio of
qPCR-based molecular diagnostic assays which in the segment of infectious disease diagnostics is considered to be the broadest in the world. In the fourth quarter of 2006, we also acquired former distributors PhileKorea Technology Inc., located in
Daejeon, Korea, and ATC Health Products Ltd., located in Ankara, Turkey.
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | In the second quarter of 2006, we completed the acquisitions of Gentra Systems, Inc., located in Minneapolis, Minnesota, Singapore-based Research Biolabs Pte. Ltd.,
and Research Biolabs Sdn Bhd, located in Malaysia. Gentra is a leading developer, manufacturer, and supplier of non-solid phase nucleic acid purification products, providing both consumables and automated platforms. The acquisition expands our
position as a leading provider of preanalytical and molecular diagnostics solutions to research and diagnostic customers. The acquisition of Research Biolabs, previously our distributor, expands our direct presence in one of the most dynamic regions
of our global business. Research Biolabs currently has sales and marketing teams in Singapore, Malaysia and Indonesia, and will also support market development in Thailand and Vietnam.
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | During the first quarter of 2006, we completed two acquisitions. PG Biotech Co. Ltd. (PG Biotech) is a leading developer, manufacturer, and supplier of polymerase
chain reaction (PCR)-based molecular diagnostic kits in China. The acquisition will support QIAGENs position as a leading provider of molecular diagnostics solutions to OEM partners and customers in the rapidly growing Asian markets. We also
acquired certain assets and operations from Diatech s.r.l., Jesi, Italy, which distributes products produced by artus Gesellschaft fur molekularbiologische Diagnostik und Entwicklung mbH, which we acquired in 2005, in Italy.
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | At the end of the fourth quarter of 2005, we completed the acquisition of Eppendorf AGs reagent business which includes the Eppendorf 5-Prime
nucleic acid sample preparation and PCR reagent product lines and related intellectual property. The acquisition adds to our core strategic focus, represents an attractive addition to our portfolio of preanalytical and nucleic acid amplification
consumables and adds a very promising pipeline of proprietary technologies for nucleic acid handling, separation, purification, and amplification.
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | During the third quarter of 2005, we completed three acquisitions. We acquired Tianwei Times, located in Beijing, China, which is a leading developer, manufacturer
and supplier of nucleic acid sample preparation consumables in China. We acquired substantially all assets of Tianwei Times through our new wholly owned subsidiary Tiangen Biotech Beijing Co. Ltd. (Tiangen). The Tiangen acquisition expands
QIAGENs position as the leading supplier for products and technologies for preanalytical sample preparation in the rapidly growing market in China. In August, we acquired the business of LumiCyte, Inc., which has developed and recently
initiated marketing of the first products based on its proprietary STS- (Surface Tension Segmented) Biochip sample preparation solution for MALDI (Matrix-Assisted Laser Desorption/Ionization)-Mass Spectrometry (MS), and SuNyx GmbH which has
developed and recently initiated marketing of its proprietary platforms for sample preparation of peptide and protein samples for analysis on Liquid Chromatography (LC)-MALDI Mass Spectrometry.
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | During the second quarter of 2005, we completed the acquisition of two companies. We acquired artus Gesellschaft für molekularbiologische Diagnostik und
Entwicklung mbH (artus), subsequently renamed QIAGEN Hamburg GmbH, which is located in Hamburg, Germany, and is an established leader in PCR-based molecular diagnostic tests for pathogenenic, genotyping and pharmacogenomic testing. We also acquired
Nextal Biotechnology, Inc. (Nextal), which is located in Canada and is a fast-growing provider of proprietary sample preparation tools which make protein crystallization more accessible.
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Also during the second quarter of 2005, we acquired the world-wide, exclusive rights and licenses to manufacture and market the complete portfolio of RNAtures
nucleic acid isolation products from
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



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| | Hitachi Chemical Research Center, Inc. In combination with our consumable and automation technologies, the RNAture solutions have the potential to provide a
new dimension of value to our customers in high-throughput gene expression analysis and siRNA in research and drug development.
| | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

During 2005, we purchased the previously leased cGMP production facilities in Germany and began the planning for a new logistics center in Hilden, Germany. Construction on the new facility began in August 2006 and was completed in 2007.

In 2006, we closed our facilities in Oslo, Norway and Fremont, California, and commenced the relocation and closure of a facility in
Canada. In 2007 we started the closure of a facility in Huntsville, Alabama.

In 2007, on a consolidated basis, operating income decreased
to $83.1 million compared to the operating income of $100.6 million in 2006. Our financial results include the contributions of our recent acquisitions, primarily Digene Corporation, as well as the costs related to the acquisitions and
integrations, including charges for purchased in-process research and development, and costs related to the relocation and closure of certain of our facilities formerly located in Norway and North America. Our operating income was also impacted by
growth in consumables and instrument product sales, both of which experienced growth of 40% during 2007.

In 2006, on a consolidated basis,
operating income increased to $100.6 million, compared to $94.8 million in 2005. Our financial results include the contributions of our recent acquisitions, as well as the costs related to the acquisitions and integrations, including charges for
purchased in-process research and development, and costs related to the relocation and closure of our facilities in Norway, Canada and Fremont, California. Our results also reflect the benefits of our previous restructuring efforts, which have
contributed to improved profitability as we continue to manage our operating costs.

We manage our business based on the locations of our
subsidiaries. Therefore, reportable segments are based on the geographic locations of our subsidiaries. Our reportable segments include our production, manufacturing and sales facilities located throughout the world. In addition, the Corporate
segment includes our holding company located in The Netherlands and two subsidiaries located in Germany which operate only in a corporate support function. The reportable segments derive revenues from our entire product and service offerings. Our
Luxembourg subsidiaries, QIAGEN Finance (Luxembourg) S.A., or QIAGEN Finance, and QIAGEN Euro Finance (Luxembourg) S.A., or Euro Finance, which were established as the financing vehicles for the issuance of convertible debt, are not consolidated.

The following table sets forth operating income by segment for the years ended December 31, 2007, 2006 and 2005. Further segment
information can be found in Note 19 in the accompanying financial statements.



|                         |  |      |             |   |      |   |             |      |  |   |            |  
|------------------------ |  | ---- | ----------- | - | ---- | - | ----------- | ---- |  | - | ---------- | -
|Operating Income (Loss)  |  | 2007 |             |   | 2006 |   |             | 2005 | 
|North America            |  | $    | 14,605,000  |   |      | $ | 31,414,000  |      |  | $ | 36,095,000 |  
|Germany                  |  |      | 63,769,000  |   |      |   | 53,956,000  |      |  |   | 43,279,000 |  
|Switzerland              |  |      | (391,000    | ) |      |   | (1,558,000  | )    |  |   | (305,000   | )
|Asia                     |  |      | 5,941,000   |   |      |   | 8,302,000   |      |  |   | 7,182,000  |  
|Rest of World            |  |      | 21,922,000  |   |      |   | 15,594,000  |      |  |   | 14,136,000 |  
|Corporate                |  |      | (20,051,000 | ) |      |   | (6,550,000  | )    |  |   | (3,959,000 | )
|                         |  |      |             |   |      |   |             |      |  |   |            |  
|Subtotal                 |  |      | 85,795,000  |   |      |   | 101,158,000 |      |  |   | 96,428,000 |  
|Intersegment Elimination |  |      | (2,662,000  | ) |      |   | (557,000    | )    |  |   | (1,591,000 | )
|                         |  |      |             |   |      |   |             |      |  |   |            |  
|Total                    |  | $    | 83,133,000  |   |      | $ | 100,601,000 |      |  | $ | 94,837,000 |  
|                         |  |      |             |   |      |   |             |      |  |   |            |  

In 2007, operating income in North America decreased compared to 2006. The United States
experienced an increase in sales, however, operating expenses in the United States were also higher as a result of our recent acquisitions, in particular the third quarter 2007 acquisition of Digene, as well as integration and relocation efforts. In
addition, $25.9 million of purchased in-process research and development was expensed in 2007 in connection with our acquisitions. Further discussion of purchased in-process research and development can be found in Note 4 in the accompanying
financial statements.



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In Germany, operating income was higher in 2007 primarily due to an increase in sales partially offset by
an increase in research and development expense as a result of intercompany transfers of technology and license agreements.

In
Switzerland, the decrease in operating loss in 2007 compared to 2006 was primarily due to an increase in instrumentation sales as well as a decrease in research and development expense as a result of intercompany transfers of technology and license
agreements.

The net decrease in operating income in our Asia segment is primarily due to decreases in operating income from our Japanese
subsidiary which, during 2007, experienced lower gross margins as compared to 2006 as a result of intercompany transfer prices, partially offset by results in China and our new expansions in Korea and Singapore.

The operating income increase in our Rest of World segment is primarily due to increased sales in 2007 as compared to 2006 as resulting from acquisitions
and organic growth.

Fiscal Year Ended December 31, 2007 compared to 2006

Net Sales

In 2007, net sales
increased 40% to $649.8 million compared to $465.8 million in 2006. In 2007 compared to 2006, net sales in Germany increased 19%, net sales in Asia increased 41%, primarily driven by Singapore, China, and Korea, net sales in North America increased
53%, primarily due to the acquisition of Digene, and net sales in Rest of World increased 35%. The increase in sales in each of these regions was the result of an increase in our consumable and instrumentation products, which both experienced
overall growth rates of 40% in 2007 as compared to 2006. The increase in consumable sales includes organic growth (12%), sales from our recently acquired businesses (22%), and the impact of foreign exchange rates (6%). During 2007, sales from our
instrumentation products increased primarily due to the launch of our new QIAcube system. Sales of our other offerings, primarily services, which represented 1% of our 2007 net sales, increased 30% in 2007 as compared to 2006.

We regularly introduce new products in order to extend the life of our existing product lines as well as to address new market opportunities. During
2007, we introduced 72 new products, including innovative sample and assay technologies for research in the areas of epigenetics, gene expression, micro RNA, proteomics, RNAi, applied testing and molecular diagnostics as well as innovative platform
solutions such as the QIAcube.

A significant portion of our revenues is denominated in euros and currencies other than the United States
dollar. Changes in exchange rates can affect the growth rate of net sales. For the year ended December 31, 2007 as compared to 2006, using the 2006 foreign exchange rates for both periods, net sales would have increased approximately 34% as
compared to the reported increase of 40%.

Gross Profit

Gross profit was $433.5 million, or 67% of net sales, in the year ended December 31, 2007 as compared to $318.5 million, or 68% of net sales, in
2006. The absolute dollar increase in 2007 compared to 2006 is attributable to the increase in net sales. The gross margin of 67% in 2007 as compared to the gross margin of 68% in 2006 reflects the impact of an increase in acquisition related costs
and instrumentation sales, partially offset by the increase in consumable product sales.

During 2007, a total of $2.8 million was expensed
to acquisition-related costs within cost of sales. Included within this amount is approximately $300,000 of inventory which has been written off as a result of the acquisitions as well as $2.5 million related to the write-up of acquired inventory to
fair market value as a result of a business combination. In accordance with purchase accounting rules, acquired inventory was recorded at fair market value and subsequently expensed as the inventory was sold.



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In connection with our 2006 acquisitions, during the year ended December 31, 2006, we recorded a
charge of $2.0 million related to inventory which needed to be replaced with products suitable to the newly acquired technologies.

Further, amortization expense related to developed technology and patent and license rights which have been acquired in a business combination is included in cost of sales. The amortization expense on acquisition related intangibles within
cost of sales increased to $23.6 million in 2007 as compared to $6.1 million in 2006. The increase in amortization expense is the result of an increase in intangibles acquired in our recent business combinations. We expect that our acquisition
related intangible amortization will continue to increase as a result of our acquisitions.

We experienced increased instrument sales in
2007, including sales of our new QIAcube instrument which began shipping in April 2007. Our instrumentation products have a lower gross margin than our consumable products, and fluctuations in the sales levels of these products can result in
fluctuation in our gross margin when compared to the gross margin of another period. During both 2007 and 2006, instrumentation sales represented approximately 10% of our total sales.

Our consumable sales in 2007 represent approximately 90% of our total sales and increased 40% over sales in 2006. In 2007, the gross margin on our
consumable products increased primarily as a result of product sales from our recently acquired businesses.

Research and Development

Research and development expenses increased 56% to $64.9 million (10% of net sales) in 2007 compared to $41.6 million (9% of net sales)
in the same period of 2006. Using identical foreign exchange rates for both years, research and development expenses increased approximately 47%. Our recent acquisitions of Digene and eGene, along with the acquisition of new technologies, have
resulted in an increase in our research and development costs. As we continue to expand our research activities and product development capabilities, additional expense will be incurred related to research and development facility costs and the
employees engaged in our research and development efforts. Additionally, our research and development costs are expected to increase as we incur costs in connection with obtaining 510(k) and CE approval of our assays. We have a strong commitment to
research and development and anticipate that research and development expenses will continue to increase, perhaps significantly.

Sales
and Marketing

Sales and marketing expenses increased 42% to $164.7 million (25% of net sales) in 2007 from $115.9 million (25% of net
sales) in 2006. Using identical foreign exchange rates for both years, sales and marketing expenses increased 37%. Sales and marketing expenses are primarily associated with personnel, commissions, advertising, trade shows, publications, freight and
logistics expenses and other promotional expenses. The increase in sales and marketing expenses in 2007 as compared to 2006 is primarily due to our third quarter acquisition of Digene through which we acquired an additional 200 sales and marketing
personnel. In addition the sales and marketing expenses include the costs of maintaining separate sales organizations addressing customers in industrial and academic research, applied testing and molecular diagnostics. We anticipate that sales and
marketing costs will continue to increase along with new product introductions and continued growth in sales of our products.

General
and Administrative

General and administrative expenses increased 48% to $71.9 million (11% of net sales) in 2007 from $48.6 million
(10% of net sales) in 2006. Using identical foreign exchange rates for both years, general and administrative expenses increased approximately 42%. General and administrative expenses primarily represent



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the costs required to support our administrative infrastructure which, except for the period following our restructuring, has continued to expand along with
our growth. The increase in general and administrative expenses in 2007 is primarily the result of expenses related to our newly acquired subsidiaries in North America, Digene and eGene. In connection with the integration of the acquired companies,
we aim to improve efficiency in general and administrative operations. We believe that over time the results of the integration activities will result in a decrease in our general and administrative expenses as a percentage of sales.

Purchased In-Process Research and Development

In connection with our acquisitions in 2007, we recorded a charge of $25.9 million for purchased in-process research and development. This amount represents $900,000 related to the acquisition of eGene. and $25.0 million related to the
acquisition of Digene Corporation and represents the value assigned to research and development projects which were commenced but not yet completed at the date of acquisition, technological feasibility for these projects has not been established and
they have no alternative future use in research and development activities or otherwise. For further information on the purchased in-process research and development, see Note 4 of the Notes to Consolidated Financial Statements included in
Item 18.

Acquisition, Integration and Related Costs

During 2007, we recorded costs of $14.7 million, related to the integration of recently acquired subsidiaries in North America and Asia. These expenses
relate primarily to the severance and other costs associated with the integrations. During 2007, a total of $2.8 million was expensed to acquisition-related costs within cost of sales. As we further integrate the acquired companies, we expect to
continue to incur acquisition, integration and related costs in 2008.

Costs related to acquisition and integration activities during 2006
totaled $6.1 million, including $1.0 million in severance and employee -related costs, $2.5 million of costs related to acquisition integrations and $2.6 million for the impairment of assets.

Acquisition-Related Intangible Amortization

Amortization expense related to developed technology and patent and license rights which have been acquired in a business combination is included in cost of sales. Amortization of trademarks, customer base and non-compete agreements which
have been acquired in a business combination is recorded in operating expense under the caption acquisition related intangible amortization. Amortization expenses of intangible assets not acquired in a business combination are recorded
within either the cost of sales, research and development or sales and marketing line items based on the use of the asset.

During 2007,
the amortization expense on acquisition-related intangibles within operating expense increased to $7.7 million compared to $2.1 million in 2006. The increase in expense is the result of an increase in amortized intangibles acquired in our recent
business combinations. We expect that our acquisition-related intangible amortization will continue to increase as a result of our acquisitions.

Relocation and Restructuring Costs

Relocation and restructuring costs recorded in 2007 and 2006 are related to the
restructuring of acquired businesses located in Norway and North America for which a restructuring was not contemplated at the time of acquisition. The restructuring was completed in 2007 at total cost of approximately $2.0 million, of which
approximately $500,000 was recorded in 2007 and $1.5 million in 2006. In 2007, we commenced the restructuring of the Huntsville, Alabama facility. The restructuring is expected to be completed during 2008 at an estimated cost of $400,000.



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Other Income (Expense)

Other expense was $7.4 million in 2007 compared to other income of $5.5 million in 2006. This increase in expense was mainly due to higher interest
expense.

For the year ended December 31, 2007, interest income increased to $19.5 million from $16.4 million in 2006. The increase in
interest income was primarily the result of an increase in interest rates. At December 31, 2007, we had $347.3 million in cash and cash equivalents compared to $430.4 million at December 31, 2006. The decrease in cash and cash equivalents
is primarily due to the use of cash to acquire eGene and Digene during the third quarter of 2007.

Interest expense increased to $31.5
million in 2007 compared to $11.9 million in 2006. Interest costs relate to the $500.0 million term loan obtained in July 2007 in connection with the Digene acquisition and our long-term borrowings from QIAGEN Finance and Euro Finance. The increase
in interest expense in 2007 as compared to 2006 is primarily due to the interest expense on the new term loan obtained in July 2007.

In
2007, research and development grant income from European, as well as German, state and federal government grants increased to $1.8 million from $795,000 in 2006. We conduct significant research and development activities in Germany, and expect to
continue to apply for such research and development grants in the future.

We recorded a gain from foreign currency transactions of $2.0
million in 2007 as compared to a loss of $660,000 in 2006. The gain or loss from foreign currency transactions reflects net effects from conducting business in different currencies. See Currency Fluctuations.

In 2007, we recorded a net gain from equity method investees of $1.6 million compared to $1.3 million in 2006. The gain primarily represents our share of
profits from our equity investment in PreAnalytiX. As previously disclosed, we intend to continue to make strategic investments in complementary businesses as the opportunities arise. During 2007, we entered into a joint venture with BioOne*Capital
to establish Dx Assay Pte Ltd, one of the first centers in Singapore for assay development in which molecular diagnostics for infectious and genetic diseases will be developed. Accordingly, we may record losses on equity investments based on our
ownership interest in such companies.

Provision for Income Taxes

Our provision for income taxes is based upon the estimated annual effective tax rates. Fluctuations in the distribution of pre-tax income among our
operating subsidiaries can lead to fluctuations of the effective tax rate in the consolidated financial statements. Our operating subsidiaries are exposed to effective tax rates ranging from zero up to approximately 42%.

In 2007 and 2006, our effective tax rate was 34%. The effective tax rates during 2007 and 2006 are impacted as a result of non-recurring acquisition
related charges which were recorded without any related tax benefit. Further, effective January 1, 2007, The Netherlands corporate tax rate decreased to 25.5% from 29.6%. In addition, our newer subsidiaries in Asia, including
Singapore and Korea which joined the consolidated group in the later half of 2006, have lower tax rates of 18% and 27%, respectively. Thus, in 2007, an increasing portion of our pre-tax income is attributable to subsidiaries with lower effective tax
rates as compared to 2006. In addition, due to the expiration of the statute of limitations, $2.2 million of tax benefits have been recognized during 2007. In future periods, we expect that the adoption of FIN 48 may result in greater volatility in
the effective tax rate. In 2008, the German tax rate decreased to 30% from 39% which will positively impact our 2008 consolidated effective tax rate.



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Fiscal Year Ended December 31, 2006 compared to 2005

Net Sales

In 2006, net sales
increased 17% to $465.8 million from $398.4 million in 2005. In 2006, net sales in North America increased 12%, net sales in Europe increased 17% and net sales in Asia increased 41%, primarily driven by China. The increase in net sales was primarily
the result of an increase in our consumables products sales which experienced a growth rate of 17% in 2006 as compared to 2005. The increase in consumable sales included organic growth and sales from our recently acquired businesses. During 2006,
sales from our instrumentation products increased 19% compared to 2005. Sales of our other offerings, primarily services, which represented 1% of our 2006 net sales, decreased 16% in 2006 as compared to 2005.

We regularly introduce new products in order to extend the life of our existing product lines as well as to address new market opportunities. During
2006, we introduced more than 67 new products, including innovative sample and assay technologies for research in the areas of epigenetics, gene expression, micro RNA, proteomics, RNAi, and molecular diagnostics.

A significant portion of our revenues is denominated in euros. Changes in exchange rates can affect the growth rate of net sales. For the year ended
December 31, 2006, using identical foreign exchange rates for both years, net sales would have increased approximately 17% as compared to the reported increase of 17% for the year ended December 31, 2006.

Gross Profit

Gross profit was $318.5
million or 68% of net sales, in the year ended December 31, 2006 as compared to $271.9 million or 68% of net sales in 2005. The absolute dollar increase in 2006 compared to 2005 is attributable to the increase in net sales. Our consumable
products have a higher gross margin than our instrumentation products and fluctuations in the sales levels of these products can result in fluctuation in our gross margin during a quarter when compared to the gross margin of another quarter. During
both 2006 and 2005, instrumentation sales represented approximately 10% of our total sales. In connection with our acquisitions in 2006 and 2005, we expensed $2.0 million and $439,000, respectively, of inventory to cost of sales which will be
replaced with products integrating newly acquired technologies.

Further, amortization expense related to developed technology and patent
and license rights which have been acquired in a business combination is included in cost of sales. The amortization expense on acquisition related intangibles within cost of sales increased to $6.1 million in 2006 as compared to $3.3 million in
2005. The increase in amortization expense is the result of an increase in intangibles acquired in recent business combinations.

Research and Development

Research and development expenses increased 16% to $41.6 million (9% of net sales) in 2006
compared with $35.8 million (9% of net sales) in 2005. Using identical foreign exchange rates for both years, research and development expenses would have increased approximately 15%. Our recent acquisitions of new technologies, notably those
acquired via the acquisitions of artus and 5-Prime, have resulted in an increase in our research and development costs. As we continue to expand our research activities and product development capabilities, additional expense will be incurred
related to research and development facility costs and the employees engaged in our research and development efforts. Additionally, our research and development costs are expected to increase as we incur costs in connection with obtaining 510(k) and
CE approval of our assays and look to expand our sample and assay technology portfolio for research in applied testing and molecular diagnostics. We intend to significantly invest in clinical trials for a number of molecular diagnostic products with
the goal of adding more regulated products to our portfolio. We have a strong commitment to research and development and anticipate that research and development expenses will continue to increase, perhaps significantly.



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Sales and Marketing

Sales and marketing expenses increased 23% to $115.9 million (25% of net sales) in 2006 from $94.3 million (24% of net sales) in 2005. Using identical foreign exchange rates for each year, sales and marketing expenses
would have increased approximately 22%. Sales and marketing expenses are primarily associated with personnel, commissions, advertising, trade shows, publications, freight and logistics expenses and other promotional expenses. The increase in sales
and marketing expenses in 2006 includes expenses related to creating separate sales organizations addressing customers in industrial and academic research, applied testing and molecular diagnostics, as well as to sales organizations in our newly
acquired or established subsidiaries. We anticipate that sales and marketing costs will continue to increase along with new product introductions and continued growth in sales of our products.

General and Administrative

General
and administrative expenses increased 21% to $48.6 million (10% of net sales) in 2006 from $40.1 million (10% of net sales) in 2005. Using identical foreign exchange rates for both years, general and administrative expenses would have increased
approximately 21%. General and administrative expenses primarily represent the costs required to support our administrative infrastructure which, except for the period following our restructuring, have continued to expand along with our growth. The
increase in general and administrative expenses in 2006 includes expenses related to our newly acquired subsidiaries.

Acquisition,
Integration and Related Costs

In connection with our acquisitions, we recorded charges in 2006 related to acquisition and integration
activities totaling $6.1 million which included $1.0 million in severance and employee-related costs, $2.5 million of costs related to acquisition integrations and $2.6 million for the impairment of assets.

In connection with our acquisitions, we recorded charges in 2005 related to acquisition and integration activities totaling $3.2 million, including $2.1
million related to the impairment of fixed and other assets as a result of acquisitions.

Acquisition-Related Intangible Amortization

Acquisition related intangible amortization relates to intangible assets acquired in our business acquisitions. During 2006, the
amortization expense on acquisition related intangibles increased to $2.1 million from $378,000 in 2005. The increase in expense is the result of an increase in the amount of intangibles acquired in our recent business acquisitions. During 2006, we
completed seven acquisitions which have increased our intangible assets subject to amortization. We therefore expect that our acquisition related intangible amortization will increase as a result of the recent acquisitions, as well as any future
acquisitions.

Relocation and Restructure Costs

Relocation and restructuring costs recorded in 2006 are related to the restructuring of acquired businesses located in Norway and North America for which a restructuring was not contemplated at the time of
acquisition. Restructuring charges related to the 2006 closures and relocations totaled approximately $2.0 million, of which $1.5 million has been recorded as of December 31, 2006. These costs consisted primarily of relocation and severance
costs of $669,000, lease and facility costs of $181,000 and other costs of $601,000.

Other Income (Expense)

Other income was $5.5 million in 2006 compared to other expense of $2.4 million in 2005. This increase in income was mainly due to higher interest income
and gain from equity method investees, partially offset by higher interest expense, lower research and development grant income and a lower loss on foreign currency transactions.



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For the year ended December 31, 2006, interest income increased to $16.4 million from $7.6 million
in 2005. Interest income is derived mainly from interest bearing cash accounts and investments. The increase in interest income in 2006 over 2005 was primarily the result of an increase in amounts invested during the year along with an increase in
interest rates. At December 31, 2006, we had $430.4 million in cash and cash equivalents compared to $191.7 million at December 31, 2005. As of December 31, 2006, we had $52.8 million invested in marketable securities, compared to
$15.0 million in auction rate securities at December 31, 2005.

Interest expense increased to $11.9 million in 2006 compared to $5.9
million in 2005. Interest costs relate primarily to our long-term borrowings from QIAGEN Finance and Euro Finance.

In 2006, research and
development grant income from European Union as well as German state and federal government grants decreased to $795,000 from $1.4 million in 2005. We conduct significant research and development activities in Germany, and expect to continue to
apply for such research and development grants in the future.

We recorded a loss from foreign currency transactions of $660,000 in 2006 as
compared to a loss of $157,000 in 2005. The loss from foreign currency transactions reflects the net effect of conducting business in currencies other than the U.S. dollar. QIAGEN N.V.s functional currency is the U.S. dollar and its
subsidiaries functional currencies are the euro, the British pound, the Swedish krone, the Swiss franc, the U.S. dollar, the Australian dollar, the Canadian dollar, the Japanese yen, the Malaysian ringgit, the Chinese yuan, the Korean won, the
Turkish lira and the Norwegian krone. See Currency Fluctuations under Item 11 Quantitative and Qualitative Disclosures About Market Risk.

In 2006, we recorded a net gain from equity method investees of $1.3 million compared to a loss of $1.1 million in 2005. The gain/loss primarily represents our share of profits/losses from our equity investment in
PreAnalytiX. As previously disclosed, we intend to continue to make strategic investments in complementary businesses as the opportunities arise. Accordingly, we may record losses on equity investments based on our ownership interest in such
companies.

Provision for Income Taxes

Our effective tax rate decreased to 34% in 2006 from 36% in 2005. Our operating subsidiaries are exposed to effective tax rates ranging from approximately 0% to approximately 62%. Fluctuations in the distribution of
pre-tax income among these entities can lead to fluctuations of the effective tax rate in our consolidated financial statements.

Foreign Currency

QIAGEN N.V.s functional currency is the U.S. dollar and our subsidiaries functional currencies are the local currency
of the respective countries in which they are headquartered, in accordance with Statement of Financial Accounting Standard No. 52, Foreign Currency Translation. All amounts in the financial statements of entities whose functional
currency is not the U.S. dollar are translated into U.S. dollar equivalents at exchange rates as follows: (1) assets and liabilities at period-end rates, (2) income statement accounts at average exchange rates for the period, and
(3) components of shareholders equity at historical rates. Translation gains or losses are recorded in shareholders equity, and transaction gains and losses are reflected in net income. The net gain (loss) on foreign currency
transactions in 2007, 2006 and 2005 was $2.0 million, ($660,000), and ($157,000), respectively, and is included in other income (expense), net.

Liquidity and Capital Resources

To date, we have funded our business primarily through internally generated funds,
debt and the private and public sales of equity. Our primary use of cash has been to support continuing operations and our capital expenditure requirements including acquisitions. As of December 31, 2007 and 2006, we had cash and cash



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equivalents of $347.3 million and $430.4 million, respectively, and investments in current marketable securities of $2.3 million and $52.8 million,
respectively. Cash and cash equivalents are primarily held in euros and U.S. dollars, other than those cash balances maintained in the local currency of subsidiaries to meet local working capital needs. At December 31, 2007, cash and cash
equivalents had decreased by $83.0 million over December 31, 2006 primarily due to cash provided by operating activities of $84.8 million and financing activities of $494.1 million, offset by cash used in investing activities of $659.7 million.
As of December 31, 2007 and 2006, we had working capital of $482.2 million and $566.7 million, respectively.

Operating
Activities.    For the years ended December 31, 2007 and 2006, we generated net cash from operating activities of $84.8 million and $101.5 million, respectively. Cash provided by operating activities decreased in
2007 compared to 2006 primarily due to decreases in net income, accrued liabilities and an increase in accounts receivable. The decrease in net income is primarily due to $25.9 million in purchased in-process research and development and increased
amortization on purchased intangible assets as a result of our 2007 acquisitions. The decrease in accrued liabilities in 2007 primarily reflects payment of liabilities assumed in connection with the acquisitions, while the increase in accounts
receivable reflects our increasing sales. Since we rely heavily on cash generated from operating activities to fund our business, a decrease in demand for our products, or significant technological advances of competitors would have a negative
impact on our liquidity.

Investing Activities.    Approximately $659.7 million of cash was used in
investing activities during 2007, compared to $165.5 million during 2006. Investing activities during 2007 consisted principally of cash paid for the acquisitions of Digene and eGene, during the third quarter of 2007 along with purchases of property
and equipment, partially offset by proceeds from the sale and purchases of marketable securities. In addition, during 2007 we invested in a joint venture with BioOne*Capital in Singapore to establish Dx Assay Pte Ltd for the development of
infectious and genetic disease assays.

In the third quarter of 2006, we began construction of a new logistics center located in Germany.
The new facility opened during 2007, and consists of approximately 61,000 square feet and cost approximately EUR 9.0 million. The new logistics facility along with future expansions and acquisitions may result in increased investing
activities compared to prior periods.

In connection with certain acquisitions, we could be required to make additional contingent cash
payments totaling up to $27.1 million based on the achievement of certain revenue and operating results milestones as follows: $10.1 million in 2008, $4.0 million in 2009, and $12.0 million payable in any 12 month period from now until 2010 if
revenues exceed a certain amount and $1.0 million payable upon the grant of certain patent rights. If paid, these contingent payments will be accounted for as additional cash paid for acquisitions.

Financing Activities.    Financing activities provided $494.1 million in cash for the year ended December 31,
2007, compared to $303.2 million for 2006. Cash provided during the year was primarily due to proceeds from debt and the issuance of Common Shares in connection with our employee stock plans, tax benefits from stock-based compensation and proceeds
received in connection with agreements to issue shares to QIAGEN Finance and Euro Finance partially offset by the repayment of debt and capital lease payments.

We have credit lines totaling $165.3 million at variable interest rates, $4,000 of which was utilized as of December 31, 2007. We also have capital lease obligations, including interest, in the amount of $35.8
million, and carry $950.0 million of long-term debt.

In July 2007, we signed a Syndicated Multi-Currency Term Loan and Revolving
Credit Facilities Agreement with Deutsche Bank AG, Deutsche Bank Luxembourg S.A., and the lenders named in the agreement. The lenders have agreed to make available to us an aggregate amount of $750 million in the form of (1) a $500 million term
loan, (2) a $100 million bridge loan, and (3) a $150 million revolving credit facility. Under the agreement, the $500 million term loan will mature in five years from the date of the agreement with an amortization schedule commencing on
the second anniversary of the loan agreement. The $150 million credit



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facility will also expire in five years from the date of the agreement. The $100 million bridge loan was utilized and repaid within the third quarter of
2007. We used the proceeds of the term loan and the bridge loan to pay the cash component of the Digene acquisition consideration and the fees and expenses of the Digene offer and the merger. The revolving credit facility is available for general
corporate purposes.

We have notes payable which are the long-term borrowings of the proceeds from the issuances of $150.0 million senior
unsubordinated convertible notes, with a 1.5% coupon due in 2024 through QIAGEN Finance (2004 Notes), and of $300.0 million 3.25% senior convertible notes (2006 Notes) due in 2026 through QIAGEN Euro Finance (Luxembourg) S.A. (Euro Finance). QIAGEN
Finance and Euro Finance are unconsolidated subsidiaries which were established for this purpose. At December 31, 2007, $150.0 million and $300.0 million are included in long-term debt for the amount of 2004 Notes and 2006 Notes payable to
QIAGEN Finance and Euro Finance, respectively. The 2004 Notes have an effective rate of 1.95%, are due in July 2011 and are convertible into our Common Shares at a conversion price of $12.6449, subject to adjustment. The 2006 Notes have an effective
rate of 4.2%, are due in November 2012 and are convertible into shares of our common stock at a conversion price of $20.00, subject to adjustment. QIAGEN N.V. has agreements with QIAGEN Finance and Euro Finance to issue shares to the investors in
the event of conversion. These subscription rights, along with the related receivable, are recorded at fair value in the equity of QIAGEN N.V. as paid-in capital.

At December 31, 2006, we had a note payable of EUR 30.0 million which bore interest at a variable interest rate of EURIBOR plus 0.75%, and was due in annual payments of EUR 5.0 million through June
2011, and a note payable of EUR 5.0 million which was due in June 2008. These notes were repaid in July 2007. In connection with the first quarter 2006 acquisition of PG Biotech, we acquired approximately $3.1 million in short-term debt. The
debt was due and paid in April 2006.

We expect that cash from financing activities will continue to be impacted by issuances of Common
Shares in connection with our employee stock plans and that the market performance of our stock will impact the timing and volume of the issuances. Additionally, we may make future acquisitions or investments requiring cash payments or the issuance
of additional equity or debt financing.

We believe that funds from operations, existing cash and cash equivalents, together with the
proceeds from our public and private sales of equity, and availability of financing facilities as needed, will be sufficient to fund our planned operations and expansion during the coming year.

Contractual Obligations

As of
December 31, 2007, our future contractual cash obligations are as follows:



|                                       |  |       |           |      |   |        |  |      |        |      |   |        |  |            |         |  |   |         |  |   |       
|-------------------------------------- |  | ----- | --------- | ---- | - | ------ |  | ---- | ------ | ---- | - | ------ |  | ---------- | ------- |  | - | ------- |  | - | ------
|Contractual obligations (in thousands) |  | Total |           | 2008 |   | 2009   |  | 2010 |        | 2011 |   | 2012   |  | Thereafter
|Long-term debt                         |  | $     | 950,000   |      | $ |       |  | $    | 25,000 |      | $ | 50,000 |  | $          | 225,000 |  | $ | 650,000 |  | $ |      
|Capital lease obligations              |  |       | 47,780    |      |   | 4,952  |  |      | 4,952  |      |   | 4,953  |  |            | 4,985   |  |   | 5,055   |  |   | 22,883
|Operating leases                       |  |       | 26,501    |      |   | 8,940  |  |      | 5,872  |      |   | 4,116  |  |            | 2,845   |  |   | 1,584   |  |   | 3,144 
|Purchase obligations                   |  |       | 34,089    |      |   | 26,366 |  |      | 5,751  |      |   | 190    |  |            | 190     |  |   | 190     |  |   | 1,402 
|License and royalty payments           |  |       | 11,776    |      |   | 4,368  |  |      | 4,451  |      |   | 1,046  |  |            | 611     |  |   | 458     |  |   | 842   
|Other (1)                              |  |       | 10,949    |      |   | 8,790  |  |      | 2,150  |      |   | 9      |  |            |        |  |   |        |  |   |      
|                                       |  |       |           |      |   |        |  |      |        |      |   |        |  |            |         |  |   |         |  |   |       
|Total contractual cash obligations     |  | $     | 1,081,095 |      | $ | 53,416 |  | $    | 48,176 |      | $ | 60,314 |  | $          | 233,631 |  | $ | 657,287 |  | $ | 28,271
|                                       |  |       |           |      |   |        |  |      |        |      |   |        |  |            |         |  |   |         |  |   |       



|(1) | Includes amounts due under acquisition-related severance and retention arrangements.
|--- | ------------------------------------------------------------------------------------

In addition to the above and pursuant to purchase agreements for several of our recent acquisitions, we could be required to make additional contingent cash payments totaling up to $27.1 million based on revenue and
other milestones in 2008 and beyond.



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Liabilities associated with uncertain tax positions, including interest, are currently estimated at
$11.3 million and are not included in the table above as we cannot reasonably estimate when, if ever, an amount would be paid to a government agency. Ultimate settlement of these liabilities is dependent on factors outside of our control, such
as examinations by each agency and expiration of statutes of limitation for assessment of additional taxes.

Critical Accounting
Policies, Judgments and Estimates

The preparation of our financial statements in accordance with accounting principles generally
accepted in the United States requires management to make assumptions that affect the reported amounts of assets, liabilities and disclosure of contingencies as of the date of the financial statements, as well as the reported amounts of revenues and
expenses during the reporting period. Critical accounting policies are those that require the most complex or subjective judgments often as a result of the need to make estimates about the effects of matters that are inherently uncertain. Thus, to
the extent that actual events differ from managements estimates and assumptions, there could be a material impact to the financial statements. In applying our critical accounting policies, at times we used accounting estimates that either
required us to make assumptions about matters that were highly uncertain at the time the estimate was made or it is reasonably likely that changes in the accounting estimate may occur from period to period that would have a material impact on the
presentation of our results of operations, financial position or cash flows. Our critical accounting policies are those related to revenue recognition, accounts receivable, investments, goodwill and other intangibles, and income taxes. We reviewed
the development, selection, and disclosure of our critical accounting policies and estimates with the Audit Committee of our Supervisory Board.

Revenue Recognition.We recognize revenue in accordance with SEC Staff Accounting Bulletin No. 104, Revenue Recognition in Financial Statements (SAB 104). SAB 104 requires that four
basic criteria must be met before revenue can be recognized: (1) persuasive evidence of an arrangement exists; (2) delivery has occurred or services have been rendered; (3) the fee is fixed and determinable; and
(4) collectibility is reasonably assured. Determination of criteria (3) and (4) could require managements judgments regarding the fixed nature of the fee charged for services rendered and products delivered and the
collectibility of those fees. Should changes in conditions cause management to determine that these criteria are not met for certain future transactions, revenue recognized for any reporting period could be adversely affected.

Accounts Receivable.Our accounts receivable are unsecured, and we are at risk to the extent such amounts become
uncollectible. We continually monitor accounts receivable balances, and provide for an allowance for doubtful accounts at the time collection becomes questionable based on payment history or age of the receivable. Since a significant portion of our
customers are funded through academic or government funding arrangements, past history may not be representative of the future. As a result, we may have write-offs of accounts receivable in excess of previously estimated amounts or may in certain
periods increase or decrease the allowance based on managements current estimates.

Investments.    We have equity investments accounted for under the cost method. We periodically review the carrying value of these investments for permanent impairment, considering factors such as the most
recent stock transactions, book values from the most recent financial statements, and forecasts and expectations of the investee. Estimating the fair value of these non-marketable equity investments in life science companies is inherently
subjective, and if actual events differ from managements assumptions, it could require a write-down of the investment that could materially impact our financial position and results of operations.

In addition, generally accepted accounting principles require different methods of accounting for an investment depending on the level of control that we
exert. Assessing the level of control involves subjective judgments. If managements assumptions with respect to control differ in future periods and we therefore have to account for these investments under a method other than the cost method,
it could have a material impact to our financial statements.



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Goodwill and Other Intangible Assets.We account for acquisitions
under the purchase method of accounting, typically resulting in goodwill. Statement of Financial Accounting Standards (SFAS) No. 142, Goodwill and Other Intangible Assets, requires us to assess goodwill for impairment at least
annually in the absence of an indicator of possible impairment and immediately upon an indicator of possible impairment. The statement requires estimates of the fair value of our reporting units. If we determine that the fair values are less than
the carrying amount of goodwill recorded, we must recognize an impairment in our financial statements. Due to the numerous variables associated with our judgments and assumptions relating to the valuation of the reporting units and the effects of
changes in circumstances affecting these valuations, both the precision and reliability of the resulting estimates are subject to uncertainty, and as additional information becomes known, we may change our estimate.

At December 31, 2007, goodwill and intangible assets totaled $1.1 billion and $639.1 million, respectively, and were included in the following
segments:



|              |  |          |               |             |   |            
|------------- |  | -------- | ------------- | ----------- | - | -----------
|              |  | Goodwill |               | Intangibles
|North America |  | $        | 998,168,000   |             | $ | 537,260,000
|Germany       |  |          | 60,488,000    |             |   | 80,803,000 
|Switzerland   |  |          |              |             |   | 44,000     
|Asia          |  |          | 15,016,000    |             |   | 11,358,000 
|Rest of World |  |          | 34,210,000    |             |   | 6,689,000  
|Corporate     |  |          |              |             |   | 2,953,000  
|              |  |          |               |             |   |            
|Total         |  | $        | 1,107,882,000 |             | $ | 639,107,000
|              |  |          |               |             |   |            

In the fourth quarter of 2007, we performed our annual impairment assessment of goodwill (using
data as of October 1, 2007) in accordance with the provisions of SFAS No. 142. In testing for potential impairment, we measured the estimated fair value of our reporting units based upon discounted future operating cash flows using a
discount rate reflecting our estimated average cost of funds. Differences in assumptions used in projecting future operating cash flows and cost of funds could have a significant impact on the determination of impairment amounts. In estimating
future cash flows, we used our internal budgets. Our budgets were based on recent sales data for existing products, planned timing of new product launches or capital projects, and customer commitments related to new and existing products. These
budgets also included assumptions of future production volumes and pricing. We concluded that no impairment existed. Even if our estimates of projected future cash flows were too high by 10%, there would be no impact on the reported value of
goodwill at December 31, 2007.

Due to the numerous variables associated with our judgments and assumptions relating to the valuation
of the reporting units and the effects of changes in circumstances affecting these valuations, both the precision and reliability of the resulting estimates are subject to uncertainty, and as additional information becomes known, we may change our
estimates.

Share-Based Compensation.    Our stock plan, the QIAGEN N.V. Amended and Restated 2005
Stock Plan (the Plan), allows for the granting of stock rights, incentive stock options, as well as for non-qualified options, stock grants and stock based awards. Effective January 1, 2006, we adopted the provisions of FASB Statement
No. 123 (revised 2004), Share-Based Payment, (SFAS 123(R)) and SEC Staff Accounting Bulletin No. 107, Share-Based Payment, (SAB 107), using the modified prospective transition method. Under the modified prospective
transition method, compensation cost recognized in 2006 includes compensation cost for all equity-based payments granted prior to but not yet vested as of January 1, 2006, based on the grant date fair value estimated in accordance with the
original provisions of SFAS No. 123 and compensation cost for all equity-based payments granted subsequent to January 1, 2006, based on the grant date fair value estimated in accordance with the provisions of SFAS No. 123(R).

We use the Black-Scholes-Merton valuation model for estimating the fair value of our stock option grants. Option valuation models,
including Black-Scholes-Merton, require the input of highly subjective assumptions,



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including the risk-free rate of interest, expected dividend yield, expected volatility, and the expected life of the award. Changes in the assumptions used
can materially affect the grant date fair value of an award.

Income Taxes.The calculation of our tax
provision is complex due to the international operations and multiple taxing jurisdictions in which we operate. We have significant deferred tax assets due to net operating losses (NOL). The utilization of NOLs is not assured and is dependent
on generating sufficient taxable income in the future. Although management believes it is more likely than not that we will generate sufficient taxable income to utilize all NOL carryforwards, evaluating the NOLs related to our newer
subsidiaries requires us to make estimates that we believe are reasonable, but may also be highly uncertain given that we do not have direct experience with such subsidiaries or their products and thus the estimates also may be subject to
significant changes from period to period as we gain that experience. To the extent that our estimates of future taxable income are insufficient to utilize all available NOLs, a valuation allowance will be recorded in the provision for income
taxes in the period the determination is made, and the deferred tax assets will be reduced by this amount, which could be material. In the event that actual circumstances differ from managements estimates, or to the extent that these estimates
are adjusted in the future, any changes to the valuation allowance could materially impact our financial position and results of operations.

Purchase Price Allocation.    The purchase price allocation for acquisitions requires extensive use of accounting estimates and judgments to allocate the purchase price to the identifiable tangible
and intangible assets acquired, including in-process research and development, and liabilities assumed based on their respective fair values. Additionally, we must determine whether an acquired entity is considered to be a business or a set of net
assets, because a portion of the purchase price can only be allocated to goodwill in a business combination.

We have made several
acquisitions in recent years. The purchase prices for the acquisitions were allocated to tangible and intangible assets acquired and liabilities assumed based on their estimated fair values at the acquisition dates. We engaged an independent
third-party valuation firm to assist us in determining the estimated fair values of in-process research and development and identifiable intangible assets. Such a valuation requires significant estimates and assumptions, including but not limited
to, determining the timing and estimated costs to complete the in-process projects, projecting regulatory approvals, estimating future cash flows, and developing appropriate discount rates. We believe the estimated fair values assigned to the assets
acquired and liabilities assumed are based on reasonable assumptions. However, the fair value estimates for the purchase price allocations may change during the allowable allocation period, which is up to one year from the acquisition dates, if
additional information becomes available.

The above listing is not intended to be a comprehensive list of all our accounting policies. In
many cases, the accounting treatment of a particular transaction is specifically dictated by generally accepted accounting principles in the United States, with limited or no need for managements judgment. There are also areas in which
managements judgment in selecting available alternatives may or may not produce a materially different result. See our audited consolidated financial statements and notes thereto in Item 18 of this Form 20-F which contain a description of
accounting policies and other disclosures required by generally accepted accounting principles in the United States.

Authoritative Pronouncements

For information on recent accounting pronouncements impacting our business, see Note 2 of the Notes to Consolidated Financial
Statements included in Item 18.



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Item 6.    Directors, Senior Management and Employees

Managing Directors and
Supervisory Board Members are appointed annually for the period beginning on the date following the Annual General Meeting up to and including the date of the Annual General Meeting held in the following fiscal year.

Our Supervisory Directors and Managing Directors, and their ages as of January 25, 2008, are as follows:

Managing Directors:



|                   |  |     |  |                                                                   
|------------------ |  | --- |  | ------------------------------------------------------------------
|Name               |  | Age |  | Position                                                          
|Peer M. Schatz     |  | 42  |  | Managing Director, Chief Executive Officer                        
|Roland Sackers     |  | 39  |  | Managing Director, Chief Financial Officer                        
|Dr. Joachim Schorr |  | 47  |  | Managing Director, Senior Vice President, Research and Development
|Bernd Uder         |  | 50  |  | Managing Director, Senior Vice President, Global Sales            

Supervisory Board Members:



|                            |  |     |  |                                                                                                                                                                                            
|--------------------------- |  | --- |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|Name                        |  | Age |  | Position                                                                                                                                                                                   
|Prof. Dr. Detlev H. Riesner |  | 66  |  | Chairman of the Supervisory Board, Supervisory Director and Chairman of the Selection and Appointment Committee                                                                            
|Dr. Metin Colpan            |  | 52  |  | Supervisory Director                                                                                                                                                                       
|Erik Hornnaess              |  | 70  |  | Deputy Chairman of the Supervisory Board, Supervisory Director, Chairman of the Compensation Committee, Member of the Audit Committee and
Member of the Selection and Appointment Committee
|Prof. Dr. Manfred Karobath  |  | 67  |  | Supervisory Director and Member of the Compensation Committee                                                                                                                              
|Dr. Werner Brandt           |  | 54  |  | Supervisory Director and Chairman of the Audit Committee                                                                                                                                   
|Heino von Prondzynski       |  | 58  |  | Supervisory Director and Member of the Audit Committee                                                                                                                                     

Prof. Dr. jur Carsten P. Claussen was appointed as non-voting Special Advisor to the
Supervisory Board and Honorary Chairman in 1999.

The following is a brief summary of the background of each of the Supervisory Directors
and Managing Directors. References to QIAGEN and the Company in relation to periods prior to April 29, 1996 mean QIAGEN GmbH and its consolidated subsidiaries:

Peer M. Schatz, 42, joined the Company in 1993 and has been Chief Executive Officer since January 1, 2004. Between 1993 and 2003 he was
Chief Financial Officer and became a Managing Director in 1998. Mr. Schatz was previously a partner in a private management buyout group in Switzerland and worked in finance and systems positions in Sandoz, Ltd. and Computerland AG, as well as
in finance, operations, management and sales positions in various start-up companies in the computer and software trading industry in Europe and the United States. Mr. Schatz graduated from the University of St. Gall, Switzerland, with a
Masters degree in Finance in 1989 and obtained an M.B.A. in Finance from the University of Chicago Graduate School of Business in 1991. Mr. Schatz also serves in the capacities of Supervisory Director, Vice Chairman and Audit Committee
Chairman of Evotec AG and acted as a member of the Advisory Board (Börsenrat) of the Frankfurt Stock Exchange through 2004, and also serves as a member of the German Corporate Governance Commission.



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Roland Sackers, 39, joined the Company in 1999 as Vice President Finance and has been Chief
Financial Officer and Deputy Managing Director since 2004. In 2006, Mr. Sackers became a Managing Director. Between 1995 and 1999, he was an auditor with Arthur Andersen Wirtschaftsprüfungsgesellschaft Steuerberatungsgesellschaft.
Mr. Sackers graduated from the Westfälische Wilhelms-Universität Münster, Germany with an M.B.A. Until 2006, he was a member of the Supervisory Board of IBS AG and a member of the Audit Committee of IBS AG. Until December 2007,
Mr. Sackers was also a member of the board of directors of Operon Biotechnologies, Inc. Since January 2008, Mr. Sackers has served as QIAGENs representative observer of the board of Eurofins Genomics BV.

Dr. Joachim Schorr, 47, joined the Company in 1992 and has been Senior Vice President Research & Development since
January 1, 2004. He became a Managing Director in 2004. Initially, Dr. Schorr served the Company as Project Manager and later had responsibilities as Business Unit Manager. In 1999, Dr. Schorr became Vice President Research &
Development with the responsibility for the world-wide QIAGEN R&D activities. Before joining QIAGEN, Dr. Schorr worked for the pharmaceutical company Hoechst AG on the development of oral malaria vaccines and was awarded with the IHK
research award in 1991. Dr. Schorr holds a Ph.D. in Molecular Biology and Virology from the University of Cologne. Dr. Schorr is a co-founder of Coley Pharmaceuticals, EnPharma Pharmaceuticals and QBM Cell Sciences and is currently a
member of the Supervisory Board of QBM Cell Sciences.

Bernd Uder, 50, joined the Company in 2001 as Vice President
Sales & Marketing and became a Managing Director and Senior Vice President Sales & Marketing in 2004. With completion of the restructuring of the Companys Sales & Marketing organization, Bernd Uder became Senior Vice
President Global Sales in 2005. Before joining the Company, Mr. Uder gained wide experience in building up and coordinating world-wide distribution networks as Vice President European Biolab Sales & Marketing with Pharmacia and Vice
President global e.business with Amersham Pharmacia Biotech.

Professor Dr. Detlev H. Riesner, 66, is a co-founder
of the Company. He has been on the Companys Supervisory Board since 1984 and was appointed Chairman of the Supervisory Board in 1999. Professor Riesner has held the Chair of Biophysics at the Heinrich-Heine-University in Düsseldorf since
1980 and retired in 2007. In 1996, he was also appointed to the position of Vice President of Research, and from 1999 until 2007, he was Director of Technology at the University of Düsseldorf. In 2007, he became a member of the
Universitys board of trustees. Prior to that, he was Professor of Biophysical Chemistry at the Darmstadt Institute of Technology and, from 1975 to 1977, Lecturer of Biophysical Chemistry at Hannover Medical School. He has held guest
professorships at the Institute of Microbiology, Academia Sinica, Beijing, and the Department of Neurology at the University of California, San Francisco. He received his M.S. in Physics from Hannover Institute of Technology and his Ph.D. from the
University of Braunschweig, with post-graduate work at Princeton University. Professor Riesner is either a member of the Supervisory Board or a director of New Lab Bioquality AG, Erkrath, AC Immune S.A., Lausanne, Neuraxo GmbH, Düsseldorf and
Direvo AG, Köln. Professor Riesner is also a member of the scientific advisory boards of the Friedrich-Loeffler-Institut, Isle of Riems, and PrioNet, Canada.

Dr. Metin Colpan, 52, is a co-founder of the Company and was Chief Executive Officer and a Managing Director from 1985 through 2003. Dr. Colpan obtained his Ph.D. and M.Sc. in Organic Chemistry
and Chemical Engineering from the Darmstadt Institute of Technology in 1983. Prior to founding QIAGEN, Dr. Colpan was an Assistant Investigator at the Institute for Biophysics at the University of Düsseldorf. Dr. Colpan has had wide
experience in separation techniques, and in the separation and purification of nucleic acids in particular, and has filed many patents in the field. Dr. Colpan currently serves as a Supervisory Board member of GenPat77 Pharmacogenetics AG, GPC
Biotech AG and Morphosys AG, each in Munich, Germany. Until 2006, he was a member of the Supervisory Board of Ingenium Pharmaceuticals AG in Munich, Germany.

Erik Hornnaess, 70, has been a member of the Supervisory Board since 1998, joined the Audit Committee in 2002 and the Compensation Committee in 2005. He was appointed Deputy Chairman of the Supervisory



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Board in 2007. Mr. Hornnaess worked for Astra Pharmaceuticals, Sweden from 1965 until 1979 in various management positions in Sweden, Australia, and
Canada and, for the last three years of this period, as the General Manager for the Benelux region (Belgium, The Netherlands and Luxembourg). In 1979, he joined Abbott Laboratories European Headquarters in Paris, France, and from 1982, he was the
Area Vice-President of Abbott Diagnostic Division in Europe, Middle-East and Africa, with headquarters in Wiesbaden, Germany. Mr. Hornnaess retired from Abbott Laboratories on March 1, 1997 and currently serves as non-executive director of
AXIS-SHIELDS Group, Scotland. Additionally, Mr. Hornnaess served as the Vice-President of European Diagnostic Manufacturers Association (EDMA), Brussels in the period 1995 through 1997. Mr. Hornnaess graduated from Aarhus Handelshojskole,
Denmark with an M.B.A. and obtained a P.M.D. from the Harvard Business School.

Professor Dr. Manfred Karobath, 67, has
been a member of the Supervisory Board since 2000. Prof. Dr. Karobath studied medicine, and from 1967 to 1980 he worked first in the Dept. of Biochemistry of the University of Vienna and, after a stage as postdoctoral fellow, he joined the
Dept. of Psychiatry where he became professor of biological Psychiatry. In 1980, he joined Sandoz Pharma in Basel, first, in drug discovery, and later, he became Senior Vice President and head of R&D. In 1992, Prof. Dr. Karobath joined
Rhone Poulenc Rorer (RPR) as President of R&D and Executive Vice President, and later, he became a member of the boards of directors of RPR, Pasteur Mérieux Connought, Centeon and Rhone Poulenc Pharma. He has received several
scientific awards and has published 92 scientific papers. Dr. Karobath also serves as a member of the board of directors of Coley Pharmaceutical Group.

Dr. Werner Brandt, 54, joined the Companys Supervisory Board in 2007 and was appointed Audit Committee Chairman. Dr. Brandt has been a member of the Executive Board and the Chief
Financial Officer of SAP AG since 2001. From 1999 to 2001, he was a member of the Executive Board and Chief Financial Officer of the German-American healthcare company, Fresenius Medical Care AG, where he also served as Labor Relations Director.
From 1992 to 1999, Dr. Brandt was a member of the Managing Board of Baxter Deutschland GmbH and Vice President for European Operations. In this capacity, he was responsible for Baxters financial operations in Europe. Dr. Brandt began
his career in 1981 at the former Price Waterhouse GmbH (now PricewaterhouseCoopers) in Frankfurt. Dr. Brandt completed his Doctorate in business administration from the Technical University of Darmstadt, Germany in 1991, after studying business
administration at the University of Nuremberg-Erlangen, Germany from 1976 to 1981. Dr. Brandt is currently a member of the Supervisory Boards of LSG Lufthansa Service Holding AG, Neu-Isenburg, Germany and SAP Systems Integration AG, Dresden,
Germany.

Heino von Prondzynski, 58, joined the Companys Supervisory Board as well as the Audit Committee in 2007.
Mr. von Prondzynski retired in 2005 from Roche (SWX: RO) where he served as Chief Executive Officer of Roche Diagnostics and a member of the Executive Committee of the Roche Group. Prior to joining Roche in 2000, Mr. von Prondzynski worked
at Chiron, first as General Manager and Chief Executive Officer in Germany and Italy, later as President of the Vaccines Division in Emeryville, USA. Mr. von Prondzynski started his career with Bayer in Germany as a sales representative and
later worked in Austria and Brazil as General Manager. He studied mathematics, geography and history at Westfälische Wilhelms University of Münster in Germany. Mr. von Prondzynski is a director of BBMedtech, Koninklijke Philips
Electronics NV and Epigenomics.

Professor Dr. jur. Carsten P. Claussen, 80, was Chairman of the Supervisory Board of
the Company from 1988 to June 1999 and was appointed as a Special Advisor and Honorary Chairman in 1999. This position is not required by Dutch law and Professor Claussen is no longer a voting member of the Supervisory Board. For many years he has
pursued a career in private banking. Between 1976 and 1987, Professor Claussen was a member of the executive board of Norddeutsche Landesbank, Hannover, and Chairman of the Hannover Stock Exchange. Since 1987, he has been a lawyer in Düsseldorf
and senior advisor to IKB Deutsche Industriekreditbank, Düsseldorf. At present, he is a partner in the law firm of Hoffmann Liebs Fritsch and Partner and specializes in corporate law and capital market transactions. He is Chairman of the Board
of Flossbach & v. Storch Vermögensmanagement AG, Cologne; and WAS Worldwide Analytical Systems AG, Cleve and is a member of other boards. Professor Claussen received his Ph.D. in law from the University of Cologne.



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Compensation of Directors and Officers

The tables below state the amounts earned on an accrual basis by our directors and officers in 2007. The variable component is based on performance
relative to personal goals and corporate goals agreed to by the Supervisory Board.

The compensation granted to the members of the Managing
Board in 2007 consisted of a fixed salary and other variable components. Variable compensation includes one-time and annual payments linked to business performance (bonuses), as well as long-term incentives containing risk elements, including, but
not limited to, stock options or other equity-based compensation and pension plans. Stock options granted to the Managing Board members must have an exercise price that is higher than the market price at the time of grant. The variable part of the
compensation is designed to strengthen the Board members commitment to QIAGEN and its objectives.



|                             |  |                     |           |                    |   |           |  |       |        |  |   |          
|---------------------------- |  | ------------------- | --------- | ------------------ | - | --------- |  | ----- | ------ |  | - | ---------
|Year ended December 31, 2007 |  | Annual Compensation
|Name                         |  | Fixed Salary        |           | Variable CashBonus |   | Other (1) |  | Total
|Managing Board:              |  |                     |           |                    |   |           |  |       |        |  |   |          
|Peer M. Schatz               |  | $                   | 1,059,000 |                    | $ | 437,000   |  | $     | 11,000 |  | $ | 1,507,000
|Roland Sackers               |  | $                   | 452,000   |                    | $ | 162,000   |  | $     | 53,000 |  | $ | 667,000  
|Dr. Joachim Schorr           |  | $                   | 291,000   |                    | $ | 122,000   |  | $     | 27,000 |  | $ | 440,000  
|Bernd Uder                   |  | $                   | 311,000   |                    | $ | 121,000   |  | $     | 20,000 |  | $ | 452,000  



|(1) | Amounts include, among others, inventor bonus and relocation costs. We also occasionally reimburse our Managing Directors personal expenses related to attending out-of-town
meetings but not directly related to their attendance. The value of such reimbursed personal expenses is reported above as other. Amounts do not include the reimbursement of certain expenses relating to travel incurred at the request of
QIAGEN or other reimbursements or payments that in total did not exceed the lesser of $50,000 or 10% of the total salary and bonus reported in 2007 for the officer.
|--- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|                             |  |                                 |        |               |         |                       |        
|---------------------------- |  | ------------------------------- | ------ | ------------- | ------- | --------------------- | -------
|Year ended December 31, 2007 |  | Long-Term Compensation         
|Name                         |  | DefinedContributionBenefit Plan |        | Stock Options |         | RestrictedStock Units
|Managing Board:              |  |                                 |        |               |         |                       |        
|Peer M. Schatz               |  | $                               | 80,000 |               | 114,551 |                       | 318,175
|Roland Sackers               |  | $                               | 72,000 |               | 35,019  |                       | 97,285 
|Dr. Joachim Schorr           |  | $                               | 25,000 |               | 17,049  |                       | 47,355 
|Bernd Uder                   |  | $                               | 47,000 |               | 17,276  |                       | 47,986 

The Supervisory Board compensation for 2007 consists of fixed compensation, an additional amount
for Chairman and Vice Chairman, and committee membership fees. Annual remuneration of the Supervisory Board members is as follows:



| |  |  | Fee paid to each member of the Supervisory Board $15,000
| | - |  | --------------------------------------------------------



| |  |  | Additional compensation payable to members holding the following positions:
| | - |  | ---------------------------------------------------------------------------



| |  |  | Chairman of the Supervisory Board $10,000
| | - |  | -----------------------------------------



| |  |  | Vice Chairman of the Supervisory Board $5,000
| | - |  | ---------------------------------------------



| |  |  | Fee payable to each member of a committee $2,500
| | - |  | ------------------------------------------------



| |  |  | Additional fee payable to a Chairman of a Committee $5,000
| | - |  | ----------------------------------------------------------

Members of the Supervisory Board also receive $1,000 for attending the Annual General Meeting and $1,000 for attending each meeting of the Supervisory Board (not to exceed $5,000 in the aggregate). Members of the
Audit Committee receive $1,000 for attending each meeting of the Audit Committee (not to exceed $5,000 in the aggregate).



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Supervisory Board members also receive variable compensation, which is determined annually by the
Compensation Committee pursuant to a formula based on growth of adjusted Earnings per Share provided that such remuneration will not exceed EUR 5,000 per year. We did not pay any agency or advisory service fees to members of the Supervisory
Board other than $471,000 to Dr. Colpan for his scientific consulting services, including travel reimbursements.



|                            |  |              |        |                                 |   |                   |  |                     |        |                    |   |       |  |   |       |  |   |       
|--------------------------- |  | ------------ | ------ | ------------------------------- | - | ----------------- |  | ------------------- | ------ | ------------------ | - | ----- |  | - | ----- |  | - | ------
|Name                        |  | Fixed Salary |        | Chairman/Vice-ChairmanCommittee |   | MeetingAttendance |  | CommitteeMembership |        | Variable CashBonus |   | Total
|Supervisory Board:          |  |              |        |                                 |   |                   |  |                     |        |                    |   |       |  |   |       |  |   |       
|Prof. Dr. Detlev H. Riesner |  | $            | 15,000 |                                 | $ | 15,000            |  | $                   | 6,000  |                    | $ | 2,500 |  | $ | 7,300 |  | $ | 45,800
|Dr. Heinrich Hornef (1)     |  | $            | 7,500  |                                 | $ | 5,000             |  | $                   | 6,000  |                    | $ | 2,500 |  | $ | 3,700 |  | $ | 24,700
|Dr. Metin Colpan            |  | $            | 15,000 |                                 |   |                  |  | $                   | 5,000  |                    |   |      |  | $ | 7,300 |  | $ | 27,300
|Dr. Franz A. Wirtz (1)      |  | $            | 7,500  |                                 | $ | 2,500             |  | $                   | 4,500  |                    | $ | 2,500 |  | $ | 3,700 |  | $ | 20,700
|Erik Hornnaess              |  | $            | 15,000 |                                 | $ | 5,000             |  | $                   | 10,000 |                    | $ | 6,250 |  | $ | 7,300 |  | $ | 43,550
|Prof. Dr. Manfred Karobath  |  | $            | 15,000 |                                 |   |                  |  | $                   | 5,000  |                    | $ | 2,500 |  | $ | 7,300 |  | $ | 29,800
|Dr. Werner Brandt (1)       |  | $            | 7,500  |                                 | $ | 2,500             |  | $                   | 6,500  |                    | $ | 1,250 |  | $ | 3,700 |  | $ | 21,450
|Heino von Prondzynski (1)   |  | $            | 7,500  |                                 |   |                  |  | $                   | 4,500  |                    | $ | 1,250 |  | $ | 3,700 |  | $ | 16,950



|(1) | Dr. Heinrich Hornef and Dr. Franz A. Wirtz decided not to seek another term as Supervisory Board members in 2007. Dr. Werner Brandt and Mr. Heino von
Prondzynski replaced Drs. Hornef and Wirtz on the Supervisory Board following our 2007 Annual General Meeting of Shareholders.
|--- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Board members also receive a variable component, in the form of share-based compensation. Stock options granted to the Supervisory Board members must have an exercise price that is higher than the market price at the time of grant. During
2007, the following options or other share-based compensation were granted to the members of the Supervisory Board.



|                             |  |               |  |                      
|---------------------------- |  | ------------- |  | ---------------------
|Year ended December 31, 2007 |  | 2007 Grants  
|Name                         |  | Stock Options |  | RestrictedStock Units
|Supervisory Board:           |  |               |  |                      
|Prof. Dr. Detlev H. Riesner  |  | 1,942         |  | 5,387                
|Dr. Heinrich Hornef          |  |              |  | 6,734                
|Dr. Metin Colpan             |  | 1,942         |  | 5,387                
|Dr. Franz A. Wirtz           |  |              |  | 6,734                
|Erik Hornnaess               |  | 1,942         |  | 5,387                
|Prof. Dr. Manfred Karobath   |  | 1,942         |  | 5,387                
|Dr. Werner Brandt            |  |              |  |                     
|Heino von Prondzynski        |  |              |  |                     

The following table sets forth the vested and unvested options of our officers and directors as of
January 25, 2008:



|                            |  |                     |  |                       |  |                   |  |                 |                   |                            |        
|--------------------------- |  | ------------------- |  | --------------------- |  | ----------------- |  | --------------- | ----------------- | -------------------------- | -------
|Name                        |  | Total VestedOptions |  | Total UnvestedOptions |  | Expiration Dates  |  | Exercise Prices |                   | Total UnvestedStock Awards
|Peer M. Schatz              |  | 2,359,876           |  | 114,551               |  | 5/2009 to 2/2017  |  | $               | 4.590 to $20.563  |                            | 318,175
|Roland Sackers              |  | 347,598             |  | 23,346                |  | 9/2009 to 2/2017  |  | $               | 10.610 to $20.563 |                            | 97,285 
|Dr. Joachim Schorr          |  | 201,444             |  | 17,049                |  | 10/2011 to 2/2017 |  | $               | 8.940 to $17.900  |                            | 47,355 
|Bernd Uder                  |  | 120,000             |  | 17,276                |  | 3/2011 to 2/2017  |  | $               | 11.985 to $20.563 |                            | 47,986 
|Prof. Dr. Detlev H. Riesner |  | 90,667              |  | 1,942                 |  | 1/2010 to 4/2017  |  | $               | 6.018 to $20.563  |                            | 5,387  
|Dr. Metin Colpan            |  | 976,150             |  | 1,942                 |  | 5/2009 to 4/2017  |  | $               | 6.018 to $20.563  |                            | 5,387  
|Erik Hornnaess              |  | 112,000             |  | 1,942                 |  | 1/2009 to 4/2017  |  | $               | 6.018 to $20.563  |                            | 5,387  
|Prof. Dr. Manfred Karobath  |  | 90,000              |  | 1,942                 |  | 1/2010 to 4/2017  |  | $               | 6.018 to $20.563  |                            | 5,387  



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During 2005 and 2004, certain stock options were accelerated as discussed further below under Stock
Plan.

Committees of the Supervisory Board

The Supervisory Board has established an Audit Committee, a Compensation Committee and a Selection and Appointment Committee, which are comprised of the following members:



|                             |  |             |  |                          |  |                                |  |                                             
|---------------------------- |  | ----------- |  | ------------------------ |  | ------------------------------ |  | --------------------------------------------
|Name of Supervisory Director |  | Independent |  | Member of AuditCommittee |  | Member ofCompensationCommittee |  | Member of Selection andAppointment Committee
|Prof. Dr. Detlev Riesner     |  | ü           |  |                          |  |                                |  | ü(Chairman)                                 
|                             |  |             |  |                         
|Dr. Werner Brandt            |  | ü           |  | ü (Chairman)             |  |                                |  |                                             
|                             |  |             |  |                         
|Prof. Dr. Manfred Karobath   |  | ü           |  |                          |  | ü                              |  |                                             
|                             |  |             |  |                         
|Heino von Prondzynski        |  | ü           |  | ü                        |  |                                |  |                                             
|                             |  |             |  |                         
|Erik Hornnaess               |  | ü           |  | ü                        |  | ü (Chairman)                   |  | ü                                           

We believe that all of our Supervisory Directors, except for Dr. Metin Colpan, meet the
independence requirements set forth in the Marketplace Rules of the NASDAQ Stock Market. Pursuant to the Code, no more than one Supervisory Director could fail to qualify as independent, as defined in the Code. Presently, Dr. Colpan is not
considered to be independent due to his former position as our Chief Executive Officer and member of our Managing Board. In addition, Mr. Colpan continues to provide scientific advisory services to the Company. Dr. Colpan does not serve on
any committees of the Supervisory Board.

Audit Committee

The Audit Committee operates pursuant to a charter approved by the Supervisory Board and available online at www.qiagen.com. The Audit Committee consists of three members, Dr. Brandt (Chairman),
Mr. Hornnaess and Mr. von Prondynzski, and meets at least quarterly. The Audit Committee members are appointed by the Supervisory Board and serve for a term of one year. We believe that all members of our Audit Committee meet the
independence requirements as set forth in Rule 10A-3 of the Securities Exchange Act of 1934, as amended, and the Marketplace Rules of the NASDAQ. The Audit Committee is responsible to review major financial risk exposures, pre-approve related-party
transactions, and review any legal matter that could have a significant impact on the financial statements. Further, the Audit Committee is responsible to establish complaint procedures, including confidential, anonymous submission by employees of
concerns, regarding the receipt, retention and treatment of complaints received regarding accounting, internal accounting controls, or auditing matters. The Audit Committee is also responsible together with the Managing Board for the proposal of the
independent registered public accounting firm to the Supervisory Board, which proposes the appointment of the independent registered public accounting firm to the General Meeting of Shareholders. The independent registered public accounting firm
audits the consolidated financial statements and local books and records of QIAGEN and its subsidiaries, and the Audit Committee is further responsible for pre-approving the fees for such services. Additionally, the Audit Committee reviews the
performance of the independent registered public accounting firm with management, discussing on a quarterly basis the scope and results of the reviews and audits with the independent registered public accounting firm; discusses our financial
accounting and reporting principles and policies and the adequacy of our internal accounting, financial and operating controls and procedures with the independent registered public accounting firm and management; considers and approves any
recommendations regarding changes to our accounting policies and processes; reviews with management and the independent registered public accounting firm our quarterly earnings reports prior to their release to the press; and reviews the quarterly
and annual reports (reported on Forms 6-K and 20-F) to be furnished to or filed with



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the Securities and Exchange Commission and the Deutsche Boerse. The Board has designated Dr. Brandt as an audit committee financial expert
as that term is defined in the United States Securities and Exchange Commission rules adopted pursuant to the Sarbanes-Oxley Act of 2002.

Compensation
Committee

The Compensation Committee operates pursuant to a charter approved by the Supervisory Board and available online at
www.qiagen.com. The Compensation Committee consists of two members, Mr. Erik Hornnaess (Chairman) and Professor Karobath. Members are appointed by the Supervisory Board and serve for a term of one year. We believe that all of the members
of the Compensation Committee meet the independence requirements set forth in the Marketplace Rules of the NASDAQ. The Compensation Committee reviews and approves all equity-based compensation, reviews and approves the annual salaries, bonuses and
other benefits of executive officers, and reviews general policies relating to employee compensation and benefits.

Selection and Appointment Committee

The Selection and Appointment Committee operates pursuant to a charter approved by the Supervisory Board and available online at
www.qiagen.com. The current members of the Selection and Appointment Committee are Prof. Dr. Detlev H. Riesner (Chairman) and Mr. Erik Hornnaess. Members are appointed by the Supervisory Board and serve for a term of one
year. The Selection and Appointment Committee prepares the selection criteria and appointment procedures for members of our Supervisory Board and the Managing Board; periodically evaluates the scope and composition of the Managing Board and
Supervisory Board and proposes the profile of the Supervisory Board in relation thereto. Additionally, the Committee periodically evaluates the functioning of individual members of the Managing Board and Supervisory Board and reports the results
thereof to the Supervisory Board and proposes the (re-)appointments of members of our Managing Board and Supervisory Board. The Committee prepares and submits to the Supervisory Board on an annual basis a report of its deliberations and findings.

Employees

As of December 31,
2007, we employed 2,662 individuals, 17% of whom worked in research and development, 35% in sales, 24% in production/logistics, 9% in marketing and 15% in administration. In July 2007 we acquired Digene and approximately 500 employees as a result.



|              |  |                        |  |       |  |            |  |           |  |                |  |      
|------------- |  | ---------------------- |  | ----- |  | ---------- |  | --------- |  | -------------- |  | -----
|Country       |  | ResearchandDevelopment |  | Sales |  | Production |  | Marketing |  | Administration |  | Total
|North America |  | 108                    |  | 333   |  | 263        |  | 91        |  | 128            |  | 923  
|Europe        |  | 334                    |  | 338   |  | 314        |  | 116       |  | 206            |  | 1,308
|Asia          |  | 19                     |  | 227   |  | 64         |  | 14        |  | 50             |  | 374  
|Rest of World |  | 0                      |  | 27    |  | 9          |  | 8         |  | 13             |  | 57   
|12/31/2007    |  | 461                    |  | 925   |  | 650        |  | 229       |  | 397            |  | 2,662

At December 31, 2006 and 2005, we employed 1,954 and 1,589 individuals, respectively. None of
our employees is represented by a labor union or subject to a collective bargaining agreement. Management believes that its relations with its employees are good.

Our success depends, to a significant extent, on key members of our management and our scientific staff. The loss of such employees could have a material adverse effect on QIAGEN. Our ability to recruit and retain
qualified skilled personnel to perform future research and development work will also be critical to our success. Due to the intense competition for experienced scientists from numerous pharmaceutical and biotechnology companies and academic and
other research institutions, there can be no assurance that we will be able to attract and retain such personnel on acceptable terms. Our planned activities will also require additional personnel, including management, with expertise in areas such
as manufacturing and marketing, and the development of such expertise by existing management personnel. The inability to acquire such personnel or develop such expertise could have a material adverse impact on our operations.



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Share Ownership

The following table sets forth certain information as of January 25, 2008 concerning the ownership of Common Shares by our Directors and Officers. In preparing the following table, we have relied on information
furnished by such persons.



|                                     |  |                              |      |  |                      |  
|------------------------------------ |  | ---------------------------- | ---- |  | -------------------- | -
|Name and Country of Residence        |  | Shares BeneficiallyOwned (1) |      |  | PercentOwnership (2) |  
|Peer M. Schatz, Germany              |  | 1,482,064                    | (3)  |  | *                    |  
|Roland Sackers, Germany              |  | 0                            | (4)  |  | *                    |  
|Dr. Joachim Schorr, Germany          |  | 0                            | (5)  |  | *                    |  
|Bernd Uder, Germany                  |  | 0                            | (6)  |  | *                    |  
|Prof. Dr. Detlev H. Riesner, Germany |  | 1,952,068                    | (7)  |  | 1.00                 | %
|Dr. Metin Colpan, Germany            |  | 6,342,025                    | (8)  |  | 3.25                 | %
|Erik Hornnaess, Spain                |  | 10,000                       | (9)  |  | *                    |  
|Professor Dr. Manfred Karobath, UK   |  | 0                            | (10) |  | *                    |  
|Dr. Werner Brandt, Germany           |  | 800                          |      |  | *                    |  
|Heino von Prondzynski                |  |                             |      |  | *                    |  



|* | Indicates that the person beneficially owns less than 1% of the Common Shares issued and outstanding as of January 25, 2008.
|- | ----------------------------------------------------------------------------------------------------------------------------

|(1) | The number of Common Shares issued and outstanding as of January 25, 2008 was 195,496,779. The persons and entities named in the table have sole voting and investment power
with respect to all shares shown as beneficially owned by them and have the same voting rights as other shareholders with respect to Common Shares.
|--- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(2) | Does not include Common Shares subject to options or awards held by such persons at January 25, 2008. See footnotes below for information regarding options now exercisable or
that could become exercisable within 60 days of the date of this table.
|--- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(3) | Does not include 2,398,059 shares issuable upon the exercise of options now exercisable or that could become exercisable within 60 days from the date of this table having exercise
prices ranging from $4.590 to $20.563 per share. Options expire in increments during the period between May 2009 and February 2017.
|--- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(4) | Does not include 347,598 shares issuable upon the exercise of options now exercisable or that could become exercisable within 60 days from the date of this table having exercise
prices ranging from $10.610 to $20.563 per share. Options expire in increments during the period between September 2009 and February 2017.
|--- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(5) | Does not include 207,127 shares issuable upon the exercise of options now exercisable or that could become exercisable within 60 days from the date of this table having exercise
prices ranging from $8.940 to $17.900 per share. Options expire in increments during the period between October 2011 and February 2017.
|--- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(6) | Does not include 125,758 shares issuable upon the exercise of options now exercisable or that could become exercisable within 60 days from the date of this table having exercise
prices ranging from $11.985 to $20.563 per share. Options expire in increments during the period between March 2011 and February 2017.
|--- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(7) | Does not include 90,667 shares issuable upon the exercise of options now exercisable or that could become exercisable within 60 days from the date of this table having exercise
prices ranging from $6.018 to $20.563 per share. Options expire in increments during the period between January 2010 and April 2017. Prof. Riesner also has the option to purchase 82,302 Common Shares through Thomé Asset Management &
Controlling. Includes 1,952,068 shares held by Riesner Verwaltungs GmbH, of which Professor Riesner is the sole stockholder.
|--- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(8) | Does not include 976,150 shares issuable upon the exercise of options now exercisable or that could become exercisable within 60 days from the date of this table having exercise
prices ranging from $6.018 to $20.563 per share. Options expire in increments during the period between May 2009 and April 2017. Includes 5,088,000 shares held by CC Verwaltungs GmbH, of which Dr. Colpan is the sole stockholder and 800,000
shares held by Colpan GbR. Dr. Colpan also has the option to purchase 330,566 Common Shares through Thomé Asset Management & Controlling.
|--- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



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|(9) | Does not include 112,000 shares issuable upon the exercise of options now exercisable or that could become exercisable within 60 days from the date of this table having exercise
prices ranging from $6.018 to $20.563 per share. Options expire in increments during the period between January 2009 and April 2017.
|--- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(10) | Does not include 90,000 shares issuable upon the exercise of options now exercisable or that could become exercisable within 60 days from the date of this table having exercise
prices ranging from $6.018 to $20.563 per share. Options expire in increments during the period between January 2010 and April 2017.
|---- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Stock Plan

During 2005, we adopted the QIAGEN N.V. Amended and Restated 2005 Stock Plan (the Plan) which was approved by
our shareholders on June 14, 2005. Pursuant to the Plan, stock rights, which include options to purchase our Common Shares, stock grants and stock based awards, may be granted to employees and consultants of QIAGEN and its subsidiaries and to
Supervisory Directors. An aggregate of 22,000,000 Common Shares have been reserved for issuance pursuant to the Plan, subject to certain antidilution adjustments. Options granted pursuant to the Plan may either be incentive stock options within the
meaning of Section 422 of the United States Internal Revenue Code of 1986, as amended (the Code), or non-qualified stock options. The Plan is administered by the Compensation Committee of the Supervisory Board, which selects participants from
among eligible employees, consultants and directors and determines the number of shares subject to the option, the length of time the option will remain outstanding, the manner and time of the options exercise, the exercise price per share
subject to the option and other terms and conditions of the option consistent with the Plan. The Compensation Committees decisions are subject to the approval of the Supervisory Board. The vesting and exercisability of certain stock rights
will be accelerated in the event of a Change of Control. A Change of Control means the occurrence of a merger or consolidation of QIAGEN, whether or not approved by the Board of Directors, other than a merger or consolidation which would
result in the voting securities of QIAGEN outstanding immediately prior thereto continuing to represent (either by remaining outstanding or by being converted into voting securities of the surviving entity or the parent of such corporation) at least
50% of the total voting power represented by the voting securities of QIAGEN or such surviving entity or parent of such corporation, as the case may be, outstanding immediately after such merger or consolidation, or the stockholders of QIAGEN
approve an agreement for the sale or disposition by QIAGEN of all or substantially all of QIAGENs assets.

The Compensation Committee
has the power, subject to Supervisory Board approval, to interpret the Plan and to adopt such rules and regulations (including the adoption of sub plans applicable to participants in specified jurisdictions) as it may deem necessary or
appropriate. The Compensation Committee or the Supervisory Board may at any time amend the Plan in any respect, subject to Supervisory Board approval, and except that (i) no amendment that would adversely affect the rights of any participant
under any option previously granted may be made without such participants consent and (ii) no amendment shall be effective prior to shareholder approval to the extent such approval is required to ensure favorable tax treatment for
incentive stock options or to ensure compliance with Rule 16b-3 under the United States Securities Exchange Act of 1934, as amended (the Exchange Act) at such times as any participants are subject to Section 16 of the Exchange Act.

The following table sets forth the total amount of options to purchase Common Shares outstanding under the Plan, the range of expiration dates of such
options and the prices (in U.S. dollars) at which such options may be exercised, as of January 25, 2008. The exercise price of each of these options is the fair market value of the Common Shares as of the date of grant or a premium above fair
market value.



|          |  |                    |  |                   |  |                         |               
|--------- |  | ------------------ |  | ----------------- |  | ----------------------- | --------------
|          |  | OutstandingOptions |  | Expiration Dates  |  | Exercise Price ofShares
|2005 Plan |  | 11,245,361         |  | 2/2008 to 12/2017 |  | $                       | 1.85 to $49.75

During the fourth quarters of 2005 and 2004 and considering the new accounting implications of
SFAS No. 123(R), our Supervisory Board approved the acceleration of the vesting of 1.2 million and 829,000 stock



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options, respectively. The 2005 acceleration applied to certain in-the-money options and to options held by Supervisory and Managing Board members. Under the
accounting guidance of APB 25 and FASB Interpretation No. 44 Accounting for Certain Transactions Involving Stock CompensationAn Interpretation of APB Opinion No. 25, the 2005 acceleration of vesting did not result in
compensation expense as these options, after applying an estimate of the termination of services, had a de minimis intrinsic value. The 2004 acceleration applied to stock options that had a price greater than or equal to the fair market value of our
Common Shares (out-of-the-money) as of the close of day that the plan was approved by the Supervisory Board, or $10.62. The accelerated options were given a sales restriction, such that any shares held through the exercise of an accelerated option
could not be sold, prior to the original vesting date. Under the accounting guidance of APB 25, the 2004 acceleration of vesting did not result in any compensation expense as these options had no intrinsic value. The accelerations, however, allowed
us to avoid recording approximately $2.8 million, after tax, of future compensation expense that would have been required to be recognized under SFAS No. 123(R). Upon adoption of SFAS No. 123(R) on January 1, 2006, we did not have any
stock-based compensation expense from these accelerated options. The Supervisory Board took the action based on its belief that it is in the best interest of our shareholders and QIAGEN as it will reduce reported compensation expense in future
periods. We have worked with equity-based compensation plan experts to evaluate our stock-based compensation plans and incentive strategies in light of the provisions of SFAS No. 123(R). Our aim is to implement an equity-based compensation plan
structure that will give employees a long-term incentive arrangement while minimizing compensation expense.

Options granted to members of
the Supervisory Board and the Managing Board must have an exercise price that is higher than the market price at the time of grant. Generally, each of the options has a term of ten years, subject to earlier termination in the event of death,
disability or other termination of employment. The vesting and exercisability of certain of these options will be accelerated in the event of a Change of Control, as discussed above. As of January 25, 2008, options to purchase 4.5 million
Common Shares were held by the officers and directors of QIAGEN, as a group.

Exemptions from Certain NASDAQ Corporate Governance Rules

Exemptions from the NASDAQ corporate governance standards are available to foreign private issuers, such as QIAGEN when those standards are contrary to
a law, rule or regulation of any public authority exercising jurisdiction over such issuer or contrary to generally accepted business practices in the issuers country of domicile. In connection with QIAGENs initial public offering,
NASDAQ granted QIAGEN exemptions from certain corporate governance standards that are contrary to the laws, rules, regulations or generally accepted business practices of The Netherlands. These exemptions and the practices followed by QIAGEN are
described below:



| |  |  | QIAGEN is exempt from NASDAQs quorum requirements applicable to meetings of ordinary shareholders. In keeping with the law of The Netherlands and generally
accepted business practices in The Netherlands, QIAGENs Articles of Association provide that there are no quorum requirements generally applicable to meetings of shareholders.
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | QIAGEN is exempt from NASDAQs requirements regarding the solicitation of proxies and provision of proxy statements for meetings of shareholders. QIAGEN does
furnish proxy statements and solicit proxies for meetings of shareholders. However, the laws of The Netherlands do not provide for a record date to be fixed in advance of a meeting of shareholders. As a result, the holder of the shares
on the day of the meeting may vote the shares at the meeting. QIAGENs transfer agent has implemented procedures to check votes by proxy for validity on the day of the meeting.
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | QIAGEN is exempt from NASDAQs requirements that shareholder approval be obtained prior to the establishment of, or material amendments to, stock option or
purchase plans and other equity compensation arrangements pursuant to which options or stock may be acquired by directors, officers, employees or consultants. QIAGEN is also exempt from NASDAQs requirements that shareholder approval be
obtained prior to certain issuances of stock resulting in a change of control, occurring in
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



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| | connection with acquisitions of stock or assets of another company or issued at a price less than the greater of book or market value other than in a public
offering. QIAGENs Articles of Association do not require stockholder approval prior to the establishment of a stock plan. The Articles of Association also permit shareholders to grant the Supervisory Board general authority to issue shares
without further shareholder approval. QIAGENs stockholders have granted the Supervisory Board general authority to issue up to a maximum of our authorized capital without further shareholder approval. QIAGEN plans to seek shareholder approval
of stock plans and stock issuances only where required under the law of The Netherlands or under QIAGENs Articles of Association.
| | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Item 7.    Major Shareholders and Related Party Transactions

The following table sets
forth certain information as of December 31, 2007, concerning the ownership of Common Shares of each holder of greater than five percent ownership. None of these holders have any different voting rights than other holders of our Common Shares.



|                              |  |                                |     |  |                       |  
|----------------------------- |  | ------------------------------ | --- |  | --------------------- | -
|Name and Country of Residence |  | Shares BeneficiallyOwnedNumber |     |  | Percent Ownership (1) |  
|FMR LLC, United States        |  | 28,386,926                     | (2) |  | 14.53                 | %



|(1) | The percentage ownership was calculated based on 195,335,076 Common Shares issued and outstanding as of December 31, 2007.
|--- | --------------------------------------------------------------------------------------------------------------------------

|(2) | Of the 28,386,926 shares attributed to FMR LLC, it has sole voting power over 7,774,971 shares and sole dispositive power over all 28,386,926 shares. Such voting and dispositive
power is also attributable to Edward C. Johnson III by virtue of his position, Chairman, and ownership interests in FMR LLC, and to members of Mr. Johnsons family by virtue of their ownership interests in FMR LLC. This information is
based solely on the Schedule 13G filed jointly by FMR LLC, Edward C. Johnson III, and Fidelity Management and Research Company with the Securities and Exchange Commission on February 15, 2007, which reported ownership as of December 31,
2007. FMR Corp. reported that it beneficially owned 18,425,233 shares representing 12.27% of the total Common Shares issued and outstanding at December 31, 2006 and 19,391,037 shares representing 13.06% of the total Common Shares issued and
outstanding at December 31, 2005.
|--- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Our common stock is traded on the NASDAQ National Market in the United States, and on
the Prime Standard Segment of the Frankfurt Stock Exchange in Germany. A significant portion of our shares are held in street name, therefore we generally have no way of determining who our shareholders are, their geographical location or how many
shares a particular shareholder owns.

Control of Registrant

To our knowledge, we are not directly or indirectly owned or controlled by another corporation, by any foreign government, or by any other natural or
legal person. As of January 25, 2008, the officers and directors of QIAGEN as a group beneficially owned 9,786,957 Common Shares or 5.01% of the then outstanding Common Shares.

Related Party Transactions

From time
to time, we have transactions with companies in which we hold an interest all of which are individually and in sum immaterial except for certain transactions as discussed below.

We have a 50% interest in a joint venture company, PreAnalytiX GmbH, which is accounted for under the equity method. During 2005, the loans of both joint
venture partners were converted to additional capital and each joint venture partner made an additional investment of approximately $2.9 million. As of December 31, 2007 and 2006, we had accounts receivable from PreAnalytix of $670,000 and
$20,000, and accounts payable to PreAnalytix of $116,000 and $219,000, respectively.



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We have a 100% interest in QIAGEN Finance (Luxembourg) S.A. (QIAGEN Finance) and QIAGEN Euro Finance
(Luxembourg) S.A. (Euro Finance), which were established for the purpose of issuing convertible debt. As discussed in Note 10, QIAGEN Finance and Euro Finance are variable interest entities with no primary beneficiary, thus they are not
consolidated. Accordingly, the convertible debt is not included in the consolidated statements of QIAGEN N.V., though we do report the full obligation of the debt through its liabilities to QIAGEN Finance and Euro Finance. As of December 31,
2007 and 2006, we had loans payable to QIAGEN Finance of $150.0 million, amounts due to QIAGEN Finance of $3.4 million and amounts receivable from QIAGEN Finance of $2.4 million and $2.9 million, respectively. As of December 31, 2007 and 2006,
we had a loan payable to Euro Finance of $300.0 million, amounts due to Euro Finance of $3.0 million and amounts receivable from Euro Finance of $1.7 million and $1.9 million, respectively.

In 2004 we entered into a consulting agreement with Dr. Metin Colpan, our former Chief Executive Officer and current Supervisory Board member,
pursuant to which Dr. Colpan is paid a fee of EUR 2,750 per day for scientific consulting services subject to adjustment. During 2007 and 2006 we paid approximately $471,000 and $524,000, respectively, to Dr. Colpan for scientific
consulting services under this agreement.

Item 8.    Financial Information

See Item 18.

Legal Proceedings

While no assurances can be given
regarding the outcome of the below matters, based on information currently available, we believe that the resolution of these matters is unlikely to have a material adverse effect on our financial position or results of future operations for QIAGEN
N.V. as a whole. However, because of the nature and inherent uncertainties of litigation, should the outcomes be unfavorable, certain aspects of our business, financial condition, and results of operations and cash flows could be materially
adversely affected.

Digene Corporation v. Third Wave Technologies, Inc.

On January 11, 2007, Digene filed a patent infringement action against Third Wave Technologies, Inc. (Third Wave) in the United States
District Court for the Western District of Wisconsin. In this action, Digene alleges that Third Wave is infringing one or more claims of United States Patent No. 5,643,715 (the 715 patent), of which Digene is the exclusive
licensee. On February 28, 2007, Third Wave filed an answer to Digenes complaint, in which Third Wave denied infringing the claims of the 715 patent. Third Wave further asserted counterclaims against Digene alleging violations of
federal antitrust laws pursuant to Sections 1 and 2 of the Sherman Act, the Clayton Act, and the Robinson-Patman Act. In response, on April 5, 2007, Digene filed a reply denying all of Third Waves counter claims. A claim construction
hearing was held on June 22, 2007 and the court issued two opinions construing the asserted claims. In light of the courts construction of the claims at issue, Digene believes that it cannot meaningfully pursue its infringement action
against Third Wave at the district court level. On October 19, 2007, Digene filed a Motion for Summary Judgment, seeking judgment against Third Waves antitrust claims. The Court granted Digenes Motion on January 11,
2008, dismissing all of Third Waves antitrust counterclaims. On February 25, 2008, Third Wave withdrew the only remaining claim on the issue of exceptional case. The Court entered final judgment on February 29, 2008. Both QIAGEN and Third Wave
have filed separate appeals to the Federal Circuit. QIAGEN expects its opening brief to be due on May 13, 2008. QIAGEN intends to vigorously pursue its patent infringement claim on appeal, and defend itself against any appeal by Third Wave.

Digene Corporation v. Ventana Medical Systems, Inc. and Beckman Coulter, Inc.

On November 19, 2001, Digene filed a patent infringement action against Ventana Medical Systems, Inc. (Ventana) in the United States District Court
for the District of Delaware. Digene alleged that Ventana infringed one or more claims of United States Patent No. 4,849,331 (the 331 patent) and United States Patent No. 4,849,332 (the 332 patent). On September 25, 2002,
Ventana publicly announced the acquisition of Beckman Coulter, Inc.s (Beckman) human Papillomavirus business. On December 10, 2002, Beckman was



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added as a co-defendant in the infringement action. Subsequently, Beckman filed a motion seeking to compel arbitration and the court granted its request. As
a matter of judicial economy, the Court stayed the proceedings against Ventana pending the outcome of the arbitration between Digene and Beckman. On July 27, 2006, an American Arbitration Association (AAA) panel upheld Digenes contractual
rights relating to various HPV materials and intellectual property. The AAA panel further found that Beckmans sale of certain HPV materials and its attempted assignment of certain HPV patent rights to Ventana was impermissible.

On August 10, 2006, Digene filed a motion to lift the stay of the proceedings against Ventana. The Court granted this motion on August 15,
2006. On August 26, 2006, Digene filed a motion for preliminary injunction to enjoin Ventana from making, using, offering for sale, selling, licensing or otherwise distributing products which infringe the claims of the 332 patent. A
hearing on Digenes motion for preliminary injunction was held on February 22, 2007, and on May 9, 2007, that motion was denied. The Court, however, noted that there remained a substantial question as to whether Ventana had a license
from Beckman to the relevant HPV patents. On June 12, 2007, the court dismissed Beckman from Digenes patent infringement action against Ventana. Despite the fact that the patents at issue in this litigation expired in May and June
2007, the patent infringement litigation against Ventana was continued, and trial was set to begin on December 17, 2007.

On
October 15, 2007 the parties filed a stipulation of partial dismissal as to Counts III, V, VI, and VII of the Second Amended Complaint. The court entered the order on the same date. The litigation with Ventana proceeded based upon
patent infringement of Digenes 331 and 332 patents (HPV 35). However, on December 15, 2007, the parties agreed to terms of a mutual settlement of all claims to be finalized on or before December 31, 2007. A
stipulation of dismissal was filed with the Court on January 4, 2008 and the case was officially closed on the same day.

Digene Corporation v.
F. Hoffmann-LaRoche Ltd. and Roche Molecular Systems, Inc.

There is a pending arbitration filed by Digene
against F. Hoffmann-LaRoche Ltd. and Roche Molecular Systems, Inc. (collectively Roche) in December of 2006 for breach of contract of a 1990 Cross License Agreement between Digene and Roche for rights to certain HPV patents. Digene claims that
Roche has breached this license agreement by entering into an alleged Supply and Purchase Agreement with Gen-Probe, Inc. (Gen-Probe) in violation of the terms of the Cross License Agreement which has a prohibition against further
sublicensing. On July 13, 2007, the arbitration Panel granted Gen-Probes request to intervene as a respondent in the arbitration. On August 27, 2007, Digene filed its First Amended Demand for Arbitration to include
claims against both Roche and Gen-Probe. Thereafter, on September 6, 2007 both Roche and Gen-Probe filed their Statement of Defense denying the allegations and asserting counterclaims against Digene. Roche alleges that Digene
interfered with its business relations and violated Digenes duties of good faith and fair dealing owed to Roche under the license agreement by bringing this lawsuit. Digene has denied Roches claims while asserting Roches
counterclaims fail to state a cause of action. Gen-Probe contends that the Purchase and Supply Agreement with Roche is not made invalid by the prohibition on sublicenses contained in the Digene/Roche Cross License Agreement. The parties have
served discovery requests (requests for production of documents and things). The parties are evaluating discovery and following up on supplementation of requests.

On October 13, 2007, Roche and Gen-Probe filed a Motion for Summary Judgment (the Motion) alleging that the Purchase and Supply Agreement with Roche does not violate the Cross License Agreement and that they are
entitled to judgment as a matter of law. QIAGEN filed its response to the Motion on November 30, 2007 and a hearing was held on January 17, 2008 in New York. On January 29, 2008, the Panel denied that motion and found that
genuine issues of material fact exist with respect to each of the claims on which Roche and Gen-Probe sought summary disposition. On February 29, 2008, QIAGEN filed a motion requesting leave to file a Second Amended Arbitration Demand adding two new
causes of action against Roche. Digenes new counts relate to a claim that Roche intentionally interfered with Digenes business relationship with Gen-Probe and a Declaration of Rights declaring that Roche does not have the rights in the
1990 Cross License it purports to have because the transaction in which Roche allegedly obtained those rights was invalid. On March 11, 2008, Gen-Probe filed its own motion to Amend its Statement of Defense and Counterclaims seeking to change the
caption of the case to reflect Digenes merger with QIAGEN and to add QIAGEN as a party to the arbitration. Both motions are currently being briefed and no decision has been rendered as of this date. The trial before the panel is scheduled for
October 27, 2008, to November 14, 2008. QIAGEN intends to vigorously pursue this case.



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Statement of Dividend Policy

We have not paid any dividends on our Common Shares since our inception and do not intend to pay any dividends on our Common Shares in the foreseeable future. We intend to retain our earnings, if any, for the
development of our business.

Item 9.    The Listing of QIAGENs Common Shares

Effective July 3, 2006,
our Common Shares began trading on the NASDAQ Global Select Market under the symbol QGEN. Previously, since February 15, 2005, our Common Shares had been quoted on the NASDAQ National Market under the symbol QGEN. Prior to that, since
June 27, 1996, our Common Shares had been quoted on the NASDAQ National Market under the symbol QGENF. The following table sets forth the annual high and low closing sale prices for the last five years, the quarterly high and low closing sale
prices for the last two fiscal years, and the monthly high and low closing sale prices for the last six months of our Common Shares on the NASDAQ National Market.



|                                       |  |          |  |        
|-------------------------------------- |  | -------- |  | -------
|                                       |  | High ($) |  | Low ($)
|Annual                                 |  |          |  |        
|2003                                   |  | 12.85    |  | 5.20   
|2004                                   |  | 15.61    |  | 8.74   
|2005                                   |  | 13.77    |  | 10.56  
|2006                                   |  | 16.15    |  | 11.72  
|2007                                   |  | 23.55    |  | 15.32  
|                                       |  |         
|                                       |  | High ($) |  | Low ($)
|Quarterly 2006:                        |  |          |  |        
|First Quarter                          |  | 15.42    |  | 11.72  
|Second Quarter                         |  | 15.35    |  | 12.83  
|Third Quarter                          |  | 15.85    |  | 13.42  
|Fourth Quarter                         |  | 16.15    |  | 14.24  
|                                       |  |         
|                                       |  | High ($) |  | Low ($)
|Quarterly 2007:                        |  |          |  |        
|First Quarter                          |  | 17.91    |  | 15.32  
|Second Quarter                         |  | 18.14    |  | 15.58  
|Third Quarter                          |  | 19.53    |  | 16.31  
|Fourth Quarter                         |  | 23.55    |  | 19.26  
|                                       |  |         
|Quarterly 2008:                        |  |          |  |        
|First Quarter (through March 19, 2008) |  | 23.39    |  | 18.41  
|                                       |  |         
|                                       |  | High ($) |  | Low ($)
|Monthly                                |  |          |  |        
|September 2007                         |  | 19.53    |  | 16.89  
|October 2007                           |  | 23.55    |  | 19.26  
|November 2007                          |  | 23.37    |  | 20.04  
|December 2007                          |  | 22.82    |  | 20.62  
|January 2008                           |  | 23.39    |  | 19.21  
|February 2008                          |  | 22.50    |  | 20.11  

Since September 25, 1997, our Common Shares were traded officially on the Frankfurt Stock
Exchange, Neuer Markt under the symbol QIA and with the security code number 901626. As of January 1, 2003, the trading of our Common Shares was transferred from the Neuer Markt segment of the Frankfurt Stock Exchange to the Prime Standard
Segment of the Frankfurt Stock Exchange. The Neuer Markt segment was discontinued in



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2004. The following table sets forth the annual high and low closing sale prices for the last five years, the quarterly high and low closing sale prices for
the last two fiscal years, and the monthly high and low closing sale prices for the last six months of our Common Shares on the Neuer Markt or the Prime Standard, as applicable.



|                                       |  |            |  |          
|-------------------------------------- |  | ---------- |  | ---------
|                                       |  | High (EUR) |  | Low (EUR)
|Annual                                 |  |            |  |          
|2003                                   |  | 12.23      |  | 4.93     
|2004                                   |  | 12.40      |  | 7.15     
|2005                                   |  | 11.43      |  | 8.20     
|2006                                   |  | 13.09      |  | 9.55     
|2007                                   |  | 16.24      |  | 11.67    
|                                       |  |           
|                                       |  | High (EUR) |  | Low (EUR)
|Quarterly 2006:                        |  |            |  |          
|First Quarter                          |  | 13.09      |  | 9.55     
|Second Quarter                         |  | 12.13      |  | 10.28    
|Third Quarter                          |  | 12.35      |  | 10.58    
|Fourth Quarter                         |  | 12.80      |  | 10.81    
|                                       |  |           
|                                       |  | High (EUR) |  | Low (EUR)
|Quarterly 2007:                        |  |            |  |          
|First Quarter                          |  | 13.95      |  | 11.67    
|Second Quarter                         |  | 13.61      |  | 11.97    
|Third Quarter                          |  | 13.64      |  | 12.16    
|Fourth Quarter                         |  | 16.24      |  | 13.49    
|Quarterly 2008:                        |  |            |  |          
|First Quarter (through March 19, 2008) |  | 15.58      |  | 11.69    
|                                       |  |           
|                                       |  | High (EUR) |  | Low (EUR)
|Monthly:                               |  |            |  |          
|September 2007                         |  | 13.56      |  | 12.16    
|October 2007                           |  | 16.24      |  | 13.55    
|November 2007                          |  | 15.92      |  | 13.49    
|December 2007                          |  | 15.68      |  | 14.37    
|January 2008                           |  | 15.58      |  | 12.82    
|February 2008                          |  | 14.77      |  | 13.80    

Item 10.    Additional Information

Memorandum and Articles of Association

We are registered in the commercial register of the Chamber of Commerce and Industries (Kamer van Koophandel), Limburg-Noord, under
the entry number 12036979. Set forth is a summary of certain provisions of our Articles of Association, as amended on October 11, 2007, or the Articles, and Dutch law, where applicable. Furthermore, a Dutch Corporate Governance
Code, or Code, has been published on December 9, 2003 including principles of good corporate governance and best practice provisions. The Code contains the principles and concrete provisions which the persons involved in a listed company
(including Managing Board members and Supervisory Board members) and stakeholders should observe in relation to one another. A listed company should explain in its annual report whether, and if so why and to what extent, it does not comply with the
best practice provisions of the Code. The Code has been taken into account in the summary below.

Such summary does not purport to be
complete and is qualified in its entirety by reference to the Articles, Dutch Law and the Code.



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Our Objects

Our objects are found in Article 2 of the Articles. Our objects include, without limitation, the performance of activities in the biotechnology industry, as well as incorporating, acquiring, participating in, financing, managing and having
any other interest in companies or enterprises of any nature, raising and lending funds and such other acts as may be conducive to our business.

Managing Directors

QIAGEN shall be managed by a Managing Board consisting of one or more Managing Directors under the
supervision of the Supervisory Board. The majority view in Dutch law is that in managing QIAGEN, the Managing Directors must take into account our interests and our business and the interests of all stakeholders (which includes but is not limited to
our shareholders). Managing Directors shall be appointed by the General Meeting upon the joint meeting of the Supervisory board and the Managing Board, or Joint Meeting, having made a binding nomination for each vacancy. However, the General Meeting
may at all times overrule the binding nature of such a nomination by a resolution adopted by at least a two-thirds majority of the votes cast, if such majority represents more than half the issued share capital. This is different from the provisions
of many American corporate statutes, including the Delaware General Corporation Law, which give the directors of a corporation greater authority in choosing the executive officers of a corporation. Under our Articles, the General Meeting may suspend
or dismiss a managing director at any time. The Supervisory Board shall also at all times be entitled to suspend (but not to dismiss) a Managing Director. The Articles provide that the Supervisory Board may adopt management rules governing the
internal organization of the Managing Board.

Furthermore, the Supervisory Board shall determine the salary, the bonus, if any, and the
other compensation terms and conditions of employment of the Managing Directors within the scope of the remuneration policy. The remuneration policy of the Managing Board has been adopted in our annual General Meeting on June 14, 2005.

Under Dutch law, in the event that there is a conflict of interest between a Managing Director and us, we are represented by the
Supervisory Board. However, the General Meeting should at all times in an event of a conflict of interest be given the opportunity to appoint a person who is authorized to represent QIAGEN in such event. According to the Code any conflict of
interest or apparent conflict of interest between the company and Managing Directors should be avoided. Decisions to enter into transactions under which Managing Directors would have conflicts of interest that are of material significance to the
Company and/or to the relevant Managing Director require the approval of the Supervisory Board.

Supervisory Directors

The Supervisory Board shall be responsible for supervising the policy pursued by the Managing Board and our general course of affairs. Under our Articles,
the Supervisory Directors are required to serve our interests and our business and the interest of all stakeholders (which includes but is not limited to our shareholders) in fulfilling their duties. The Supervisory Board shall consist of such
number of members as the Joint Meeting may from time to time determine, with a minimum of three members. The Supervisory Directors shall be appointed by the General Meeting upon the Joint Meeting having made a binding nomination for each vacancy. If
during a financial year a vacancy occurs in the Supervisory Board, the Supervisory Board may appoint a Supervisory Director who will cease to hold office at the next Annual General Meeting. Under Dutch law and the Code, a Supervisory Director must
excuse him or herself in the case of any conflict of interest. Decisions to enter into transactions under which a Supervisory Director would have a conflict of interest that are of material significance to QIAGEN and/or to the Supervisory Director
concerned, require the approval of the Supervisory Board.

Under Dutch law and the Code, the General Meeting determines the compensation of
the members of the Supervisory Board upon the proposal of the Compensation Committee. Any shares held by a Supervisory Director in the company on whose board he sits should be long term investments.



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Under our Articles, the General Meeting may suspend or dismiss a Supervisory Director at any time. This
is different from the provisions of many American corporate statutes, including the Delaware General Corporation Law, which provides that directors may vote to fill vacancies in the board of directors of a corporation.

Liability of Managing Directors and Supervisory Directors

Under Dutch law, as a general rule, Managing Directors and Supervisory Directors are not liable for obligations we incur. Under certain circumstances, however, they may become liable, either towards QIAGEN (internal liability) or to others
(external liability), although some exceptions are described below.

Liability Towards QIAGEN

Failure of a Managing or Supervisory Director to perform his or her duties does not automatically lead to liability. Liability is only incurred in the
case of a clear, indisputable shortcoming about which no reasonably judging business-person would have any doubt. In addition, the Managing or Supervisory Director must be deemed to have been grossly negligent. Managing Directors and Supervising
Directors are jointly and severally liable for failure of the Managing Board and Supervisory Board as a whole, respectively, but an individual Managing or Supervisory Director will not be held liable if he or she is determined not to have been
responsible for the mismanagement and has not been negligent in preventing its consequences.

Liability for Misrepresentation in Annual Accounts

Managing and Supervisory Directors are also jointly and severally liable to any third party for damages suffered as a result of
misrepresentation in the annual accounts, annual report or interim statements of QIAGEN, although a Managing or Supervisory Director will not be held liable if found not to be personally responsible for the misrepresentation. Moreover, a Managing or
Supervisory Director may be found to be criminally liable if he deliberately publishes false annual accounts or deliberately allows the publication of such false annual accounts.

Tort Liability

Under Dutch law, there can be liability if one has committed a tort (onrechtmatige
daad) against another person. Although there is no clear definition of tort under Dutch law, breach of a duty of care towards a third party is generally considered to be a tort. Therefore, a Dutch corporation may be held liable by
any third party under the general rule of Dutch laws regarding tort claims. In exceptional cases, Managing Directors and Supervisory Directors have been found liable on the basis of tort under Dutch common law, but it is generally difficult to hold
a Managing or Supervisory Director personally liable for a tort claim. Shareholders cannot base a tort claim on any losses which derive from and coincide with losses we suffered. In such cases, only we can sue the Managing or Supervisory Directors.

Criminal Liability

Under Dutch law,
if a legal entity has committed a criminal offence, criminal proceedings may be instituted against the legal entity itself as well as against those who gave order to or were in charge of the forbidden act. As a general rule, it is held that a
Managing Director is only criminally liable if he played a reasonably active role in the criminal act.

Indemnification

Article 27 of our Articles provide that we shall indemnify every person who is or was a Managing Director or Supervisory Directors against all expenses
(including attorneys fees) judgments, fines and amounts paid in settlement with respect to any threatened pending or completed action, suit or proceeding as well as against expenses (including attorneys fees) actually and reasonably
incurred in connection with the defense or settlement of an action or proceeding, if such person acted in good faith and in a manner he reasonably could



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believe to be in or not opposed to our best interests. An exception is made in respect of any claim, issue or matter as to which such person shall have been
adjudged to be liable for gross negligence or willful misconduct in the performance of his duty to us.

Classes of Shares

The authorized classes of our shares consist of Common Shares, Financing Preference Shares and Preference Shares. No Financing Preference Shares or
Preference Shares have been issued.

Common Shares

Common Shares are issued in registered form only. Common Shares are available either without issue of a share certificate, or Type I shares, or with issue of a share certificate, or Type II shares, in either case in
the form of an entry in the share register. At the discretion of the Supervisory Board, Type I shares may be issued and the holders of such Type I shares will be registered in the shareholders register of QIAGEN with TMF Management B.V. in
Amsterdam, The Netherlands. The Type II shares are registered with American Stock Transfer & Trust Company, or New York Transfer Agent, our transfer agent and registrar in New York.

The transfer of registered shares requires that we issue a written instrument of transfer and the written acknowledgment of such transfer (or, in the
case of Type II shares, the New York Transfer Agent (in our name)), and surrender of the share certificates, if any, to us or (in our name) to the New York Transfer Agent. Upon surrender of a share certificate for the purpose of transfer of the
relevant shares, we (or the New York Transfer Agent in our name) acknowledge the transfer by endorsement on the share certificate or by issuance of a new share certificate to the transferee, at the discretion of the Managing Board.

Financing Preference Shares

No Financing Preference
Shares are outstanding. If issued, Financing Preference Shares will be issued in registered form only. No share certificates are issued for Financing Preference Shares. Financing Preference Shares must be fully paid up upon issue. The preferred
dividend rights attached to Financing Preference Shares are described under Dividends below. We have no present plans to issue any Financing Preference Shares.

Preference Shares

No Preference Shares are currently outstanding. If issued, Preference Shares will
be issued in registered form only. No share certificates are issued for Preference Shares. Only 25% of the par value thereof is required to be paid upon subscription for Preference Shares. The obligatory payable part of the nominal amount (call)
must be equal for each Preference Share. The Managing Board may, subject to the approval of the Supervisory Board, resolve on which day and up to which amount a further call must be paid on Preference Shares which have not yet been paid up in full.
The preferred dividend rights attached to Preference Shares are described under Dividends below.

Pursuant to our Articles and
the resolution adopted by our General Meeting on June 16, 2004, QIAGENs Supervisory Board is entitled to resolve to issue Preference Shares in case of an intended take-over of our Company by (i) any person who alone or with one or
more other persons, directly or indirectly, have acquired or given notice of an intent to acquire (beneficial) ownership of an equity stake which in aggregate equals 20% or more of our share capital then outstanding or (ii) an adverse
person as determined by the Supervisory Board. For this purpose, an adverse person is generally any (legal) person, alone or together with affiliates or associates, with an equity stake in our Company which
the Supervisory Board considers to be substantial and where the Supervisory Board is of the opinion that this (legal) person has engaged in an acquisition that is intended to cause or pressure QIAGEN to enter into transactions
intended to provide such person with short-term financial gain under circumstances that would not be in the interest of QIAGEN and our shareholders or whose ownership is reasonably likely to cause a material adverse impact on our business
prospects.



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On August 2, 2004 we entered into an agreement, or Option Agreement, with Stichting Preferente
Aandelen QIAGEN (SPAQ). Pursuant to the Option Agreement SPAQ was granted an option to acquire such a number of Preference Shares as are equal to the total number of all outstanding Common Shares minus one in our share capital at the
time of the relevant exercise of the right. The right to acquire Preference Shares is granted subject to the conditions referred to in the previous paragraph. Due to the implementation of the EC Directive on Takeover Bids in Dutch legislation, the
exercise of the option to acquire Preference Shares by SPAQ and the subsequent issuance of Preference Shares to SPAQ needs to be done with due observance and in consideration of the restrictions imposed by the Public Offer Rules.

SPAQ was incorporated on August 2, 2004. Its principal office is located at Spoorstraat 50, 5911 KJ Venlo, The Netherlands. Its statutory objectives
are to protect the interest of QIAGEN and its enterprise and the enterprises of companies which are linked to QIAGEN. SPAQ shall attempt to accomplish its objectives by way of acquiring Preference Shares in the share capital of QIAGEN and to
exercise the voting rights in the interest of QIAGEN and its stakeholders.

The board of SPAQ shall consist of at least two directors. Upon
incorporation of SPAQ two members have been appointed. Board members shall be appointed by the board of SPAQ. Board resolutions will be adopted by unanimity of the votes cast. SPAQ will be represented either by the board or by the chairman of the
board.

Pre-emptive Rights

Under the
Articles, existing holders of Common Shares will have pre-emptive rights in respect of future issuances of Common Shares in proportion to the number of Common Shares held by them, unless limited or excluded as described below. Holders of Common
Shares shall not have pre-emptive rights in respect of future issuances of Financing Preference Shares or Preference Shares. Holders of Financing Preference Shares and Preference Shares shall not have pre-emptive rights in respect of any future
issuances of share capital. Pre-emptive rights do not apply with respect to shares issued against contributions other than in cash or shares issued to our employees or one of our group companies. Under the Articles, the Supervisory Board has the
power to limit or exclude any pre-emptive rights to which shareholders may be entitled provided that it has been authorized by the General Meeting to do so. The authority of the Supervisory Board to limit or exclude pre-emptive rights can only be
exercised if at that time the authority to issue shares is in full force and effect. The authority to limit or exclude pre-emptive rights may be extended in the same manner as the authority to issue shares. If there is no designation of the
Supervisory Board to limit or exclude pre-emptive rights in force, the General Meeting shall have authority to limit or exclude such pre-emptive rights, but only upon the proposal of the Supervisory Board.

Resolutions of the General Meeting (i) to limit or exclude pre-emptive rights or (ii) to designate the Supervisory Board as the corporate body
that has authority to limit or exclude pre-emptive rights, require a majority of at least two-thirds of the votes cast in a meeting of shareholders if less than 50% of the issued share capital is present or represented. For these purposes, issuances
of shares include the granting of rights to subscribe for shares, such as options and warrants, but not the issue of shares upon exercise of such rights.

On July 20, 2007, the General Meeting of shareholders of QIAGEN resolved to authorize the Supervisory Board to issue Common Shares and Financing Preference Shares or grant rights to subscribe to those shares for
a period of 5 years commencing on October 11, 2007 and for a maximum of Common Shares and Financing Preference Shares included in the authorized share capital (as included in the Articles as of October 11, 2007) of QIAGEN.

The General Meeting of shareholders subsequently resolved to grant the authority to exclude or limit any pre-emptive rights. However, the General Meeting
has limited this authority in a way that the Supervisory Board can only exclude or limit the pre-emptive rights in relation to no more than 50% of the aggregate number of Common Shares and Financing Preference Shares to be issued or rights to
subscribe for those shares to be granted under the authorization previously mentioned. The authority to exclude or limit pre-emptive rights covers a period of 5 years commencing as of October 11, 2007.



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Acquisition of our Own Shares

We may acquire our own shares, subject to certain provisions of Dutch law and the Articles, if (i) shareholders equity less the payment required to make the acquisition does not fall below the sum of
paid-up and called up capital and any reserves required by Dutch law or the Articles and (ii) we and our subsidiaries would not thereafter hold shares with an aggregate par value exceeding one-tenth of our issued share capital. Shares that we
hold in our own capital or shares held by one of our subsidiaries may not be voted. The Managing Board, subject to the approval of the Supervisory Board, may effect our acquisition of shares in our own capital. Our acquisitions of shares in our own
capital may only take place if the General Meeting has granted to the Managing Board the authority to effect such acquisitions. Such authority may apply for a maximum period of 18 months and must specify the number of shares that may be acquired,
the manner in which shares may be acquired and the price limits within which shares may be acquired. On June 20, 2007 the General Meeting resolved to extend the authorization of the Managing Board in such manner that the Managing Board may
cause us to acquire shares in our own share capital for an 18-month period from June 20, 2007 until December 20, 2008, without limitation against a price between one Euro cent (Euro 0.01) and one hundred ten percent (110%) of the
price for such shares on the NASDAQ Global Select Market for the five trading days prior to the day of purchase, or, with respect to preference and finance preference shares, against a price between one Euro cent (Euro 0.01) and three times the
issuance price and in accordance with applicable provisions of Dutch law and our Articles.

Capital Reduction

Subject to the provisions of Dutch law and the Articles, the General Meeting may, upon the proposal of the Supervisory Board, resolve to reduce the issued
share capital by (i) canceling shares or (ii) reducing the par value of shares through an amendment of the Articles. Cancellation with repayment of shares or partial repayment on shares or release from the obligation to pay up may also be
made or given exclusively with respect to Common Shares, Financing Preference Shares or Preference Shares.

Annual Accounts

We have a calendar fiscal year. Dutch law requires that within five months after the end of our fiscal year, unless the General Meeting has extended this
period by a maximum period of six months on account of special circumstances, the Managing Board must submit to the shareholders a report with respect to such fiscal year, including our financial statements for such year prepared under International
Financial Reporting Standards and accompanied by a report of an independent accountant. The annual report is submitted to the annual General Meeting for adoption.

Dividends

Subject to certain exceptions, dividends may only be paid out of profits as shown in our annual financial
statements as adopted by the General Meeting. Distributions may not be made if the distribution would reduce shareholders equity below the sum of the paid-up capital and any reserves required by Dutch law or the Articles.

Out of profits, dividends must first be paid on any outstanding Preference Shares (the Preference Share Dividend) in a percentage (the
Preference Share Dividend Percentage) of the obligatory amount (call) paid up on such shares at the beginning of the fiscal year in respect of which the distribution is made. The Preference Share Dividend Percentage is equal to the
Average Main Refinancing Rates during the financial year for which the distribution is made. Average Main Refinancing Rate shall be understood to mean the average value on each individual day during the financial year for which the distribution is
made of the Main Refinancing Rates prevailing on such day. Main Refinancing Rate shall be understood to mean the rate of the Main Refinancing Operation as determined and published from time to time by the European Central Bank. If and to the extent
that profits are not sufficient to pay the Preference Share Dividend in full, the deficit shall be paid out of the reserves, with the exception of any reserve, which was formed as share premium reserve upon the issue of Financing



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Preference Shares. If in any fiscal year the profit is not sufficient to make the distributions referred to above and if no distribution or only a partial
distribution is made from the reserves referred to above, such that the deficit is not fully made good no further distributions will be made as described below until the deficit has been made good.

Out of profits remaining after payment of any dividends on Preference Shares, such amounts shall be kept in reserve as determined by the Supervisory
Board. Out of any remaining profits not allocated to reserve, a dividend (the Financing Preference Share Dividend) shall be paid on the Financing Preference Shares in a percentage (the Financing Preference Share Dividend
Percentage) over the par value, increased by the amount of share premium that was paid upon the first issue of Financing Preference Shares, which percentage is related to the average effective yield on the prime interest rate on corporate
loans in the United States as quoted in the Wall Street Journal. If and to the extent that the profits are not sufficient to pay the Financing Preference Share Dividend in full, the deficit may be paid out of the reserves if the Managing Board so
decides with the approval of the Supervisory Board, with the exception of the reserve which was formed as share premium upon the issue of Financing Preference Shares.

Insofar as the profits have not been distributed or allocated to reserves as specified above, they are at the free disposal of the General Meeting provided that no further dividends will be distributed on the
Preference Shares or the Financing Preference Shares.

The General Meeting may resolve, on the proposal of the Supervisory Board, to
distribute dividends or reserves, wholly or partially, in the form of QIAGEN shares.

Distributions as described above are payable as from
a date to be determined by the Supervisory Board. The date of payment on Type I shares may differ from the date of payment on Type II shares. Distributions will be made payable at an address or addresses in The Netherlands to be determined by the
Supervisory Board, as well as at least one address in each country where the shares are listed or quoted for trading. The Supervisory Board may determine the method of payment of cash distributions, provided that cash distributions in respect of
Type II shares will, subject to certain exceptions, be paid in the currency of a country where our shares are listed or quoted for trading, converted at the close of business on a day to be determined for that purpose by the Supervisory Board.

Dutch law, making the declaration of dividends out of the profits that are at the free disposal of the General Meeting the exclusive right
of the General Meeting, is different from the corporate law of most jurisdictions in the United States, which permit a corporations board of directors to declare dividends.

Shareholder Meetings, Voting Rights and Other Shareholder Rights

The annual General Meeting is held
within six months after the end of each fiscal year for the purpose of, among other things, adopting the annual accounts and filling of any vacancies on the Managing and Supervisory Boards.

Extraordinary General Meetings are held as often as deemed necessary by the Managing Board or Supervisory Board, or upon the request of one or more
shareholders and other persons entitled to attend meetings jointly representing at least 40% of our issued share capital or by one or more shareholders jointly representing at least 10% of our issued share capital as provided for and in accordance
with the laws of The Netherlands.

General Meetings are held in Amsterdam, Haarlemmermeer (Schiphol Airport), Arnhem, Maastricht,
Rotterdam, Venlo or The Hague. The notice convening a General Meeting must be given to the shareholders by advertisement in at least one national daily newspaper published in The Netherlands no later than the fifteenth day prior to the meeting. The
notice will contain the agenda for the meeting or state that the agenda can be obtained at the offices of the Company.



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The agenda shall contain such subjects to be considered at the General Meeting, as the persons convening
or requesting the meeting shall decide. Under Dutch law holders of shares representing solely or jointly at least one hundredth part of the issued share capital, or represents a value of at least EUR 50,000,000 may request the company not later than
on the sixtieth day prior to the day of the General Meeting to include certain subjects on the notice convening a meeting, provided that it is not detrimental to the vital interest of the company. No valid resolutions can be adopted at a General
Meeting in respect of subjects which are not mentioned in the agenda.

General Meetings are presided over by the chairman of the
Supervisory Board or, in his absence, by any person nominated by the Supervisory Board.

At the General Meeting, each share shall confer
the right to cast one vote, unless otherwise provided by law or the Articles. No votes may be cast in respect of shares that we or our subsidiaries hold, or by usufructuaries and pledges of shares. All shareholders and other persons entitled to vote
at General Meetings are entitled to attend General Meetings, to address the meeting and to vote. They must notify the Managing Board in writing of their intention to be present or represented not later than on the third day prior to the day of the
meeting, unless the Managing Board permits notification within a shorter period of time prior to any such meeting. Subject to certain exceptions, resolutions may be passed by a simple majority of the votes cast.

Except for resolutions to be adopted by the meeting of holders of Preference Shares, our Articles do not allow the adoption of shareholders resolutions
by written consent (or otherwise without holding a meeting).

A resolution of the General Meeting to amend the Articles, dissolve QIAGEN,
issue shares or grant rights to subscribe for shares or limit or exclude any pre-emptive rights to which shareholders shall be entitled is valid only if proposed to the General Meeting by the Supervisory Board.

A resolution of the General Meeting to amend the Articles is further only valid if the complete proposal has been made available for inspection by the
shareholders and the other persons entitled to attend General Meetings at our offices as from the day of notice convening such meeting until the end of the meeting. A resolution to amend the Articles to change the rights attached to the shares of a
specific class requires the approval of the relevant class meeting.

Resolutions of the General Meeting in a meeting that has not been
convened by the Managing Board and/or the Supervisory Board, or resolutions included on the agenda for the meeting at the request of shareholders, will be valid only if adopted with a majority of two-thirds of votes cast representing more than half
the issued share capital, unless the Articles require a greater majority or quorum. Our Articles do not provide for shareholders to act by written consent outside of a General Meeting.

A resolution of the General Meeting to approve a legal merger or the sale of all or substantially all of our assets is valid only if adopted by a vote of
at least two-thirds of the issued share capital, unless proposed by the Supervisory Board, in which case a simple majority of the votes cast shall be sufficient.

A shareholder shall upon request be provided, free of charge, with written evidence of the contents of the share register with regard to the shares registered in its name. Furthermore any shareholder shall, upon
written request, have the right, during normal business hours, to inspect our share register and a list of our shareholders and their addresses and shareholdings, and to make copies or extracts therefrom. Such request must be directed to our
Managing Directors at our registered office in the Netherlands or at our principal place of business. Financial records and other company documents (other than made public) are not available in this manner for shareholder review but an extract of
the minutes of the General Meeting shall be made available.



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According to Dutch law certain resolutions of the Managing Board regarding a significant change in the
identity or nature of the company are subject to the approval of the General Meeting. The following resolutions of the Managing Board acquire the approval of the General Meeting in any event:

(i) The transfer of the enterprise or practically the entire enterprise to a third party;

(ii) To conclude or cancel any long lasting cooperation by the company or an affiliate (dochtermaatschappij) with any other legal
person or company or as a fully liable general partner of a limited partnership or a general partnership, provided that such cooperation or the cancellation thereof is of essential importance to the company; and

(iii) To acquire or dispose of a participation interest in the capital of a company with a value of at least one-third of the sum of the
assets according to the consolidated balance sheet with explanatory notes thereto according to the last adopted annual accounts of the company, by the company or an affiliate (dochtermaatschappij).

No Derivative Actions; Right to Request Independent Inquiry

Dutch law does not afford shareholders the right to institute actions on behalf of or in our interest. Shareholders holding at least one-tenth of our issued capital or EUR 225,000 in nominal amount of our shares may inform the Managing
Board and the Supervisory Board of their objections as to the policy or the course of our affairs and, within a reasonable time thereafter, may request the Enterprises Division of the Court of Appeal in Amsterdam to order an inquiry into the policy
and the course of our affairs by independent investigators. If such an inquiry is ordered and the investigators conclude that there has been mismanagement, the shareholders can request the Division to order certain measures such as a suspension or
annulment of resolutions.

Liquidation Rights

In the event of our dissolution and liquidation, the assets remaining after payment of all debts and liquidation expenses will be distributed among registered holders of Common Shares in proportion to the par value of their Common Shares,
subject to liquidation preference rights of holders of Preference Shares and Financing Preference Shares, if any.

Restrictions on Transfer of
Preference Shares

The Supervisory board upon application in writing must approve each transfer of Preference Shares. If approval is
refused, the Supervisory Board will designate prospective purchasers willing and able to purchase the shares, otherwise the transfer will be deemed approved.

Limitations on Rights to Own Securities

Other than with respect to usufructuaries and pledges who have no voting rights,
our Articles do not impose limitations on rights to own securities.

Provisions which may Defer or Prevent a Change in Control

The Option Agreement and our Articles could, under certain circumstances, prevent a third party from obtaining a majority of the voting control of our
shares by issuing Preference Shares. Pursuant to the Articles (and pursuant to the resolution adopted by our General Meeting on June 16, 2004), the Supervisory Board is authorized to issue Preference Shares if (i) a person has (directly or
indirectly) acquired or has expressed a desire to acquire, more than 20% of our issued capital or (ii) a person holding at least a 10% interest in us has been designated as an adverse person by the Supervisory Board. Under the
Option Agreement, SPAQ could acquire Preference Shares subject to the provisions mentioned in this paragraph.



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If the Supervisory Board opposes an intended take-over and authorizes the issuance of Preference Shares,
the bidder may withdraw its bid or enter into negotiations with the Managing Board and/or Supervisory Board and agree on a higher bid price for our shares.

Due to the implementation of the EC Directive or Takeover Bids, or 13thDirective, in Dutch legislation, shareholders who obtain control of a company are obliged to make a mandatory offer to all other shareholders. The threshold
for a mandatory offer is set at the ability to exercise 30% of the voting rights at the General Meeting of shareholders in a Dutch public limited company (naamloze vennootschap) whose securities are admitted to trading on a regulated market
in the EU (i.e. QIAGEN).

Ownership Threshold Requiring Disclosure

Our Articles do not provide an ownership threshold above which ownership must be disclosed.

Exchange Controls

There are currently no limitations either under the laws of The Netherlands or in our Articles, to the rights of shareholders from
outside The Netherlands to hold or vote Common Shares. Under current foreign exchange regulations in The Netherlands, there are no material limitations on the amount of cash payments that we may remit to residents of foreign countries.

Obligation of Shareholders to Disclose Major Holdings

Holders of our Common Shares or rights to acquire Common Shares (which include options and convertible bonds) may be subject to notification obligations under Chapter 5.3 of the Dutch Financial Markets Supervision Act, or the FMSA.

Under Chapter 5.3 FMSA any person whose direct or indirect interest (including potential interest, such as options and convertible bonds)
in our capital or voting rights reaches or crosses a threshold percentage must notify the Netherlands Authority for the Financial Markets, or AFM: (a) immediately, if this is the result of an acquisition or disposal by it; (b) within 4
trading days after such reporting, if this is the result of a change in our share capital or votes reported in the AFMs public register. The threshold percentages are 5, 10, 15, 20, 25, 30, 40, 50, 60, 75 and 95 percent.

Furthermore persons holding 5 percent or more in our voting rights or capital interest must within 4 weeks after 31 December notify the AFM of any
changes in the composition of their interest since their last notification.

The following instruments qualify as shares:
(i) shares, (ii) depositary receipts for shares (or negotiable instruments similar to such receipts), (iii) negotiable instruments for acquiring the instruments under (i) or (ii) (such as convertible bonds), and
(iv) options for acquiring the instruments under (i) or (ii). Among others the following shares and votes qualify as shares and votes held by a person: (i) those directly held by him; (ii) those held by his
subsidiaries; (iii) shares held by a third party for such persons account and the votes such third party may exercise; (iv) the votes held by a third party if such person has concluded an oral or written agreement with such party
which provides for a lasting common policy on voting; (v) the votes held by a third party if such person has concluded an oral or written agreement with such party which provides for a temporary and paid transfer of the shares; (vi) the
votes which a person may exercise as a proxy but in his own discretion. Special rules apply to the attribution of the Common Shares which are part of the property of a partnership or other community of property. A holder of a pledge or right of
usufruct in respect of Common Shares can also be subject to a notification obligation if such person has, or can acquire, the right to vote on Common Shares. If a pledgor or usufructuary acquires such voting rights, this may trigger a notification
obligation for the holder of the Common Shares.



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Under section 5:48 of the FMSA, each of our managing and supervisory directors must without delay notify
the AFM of any changes in his interest or potential interest in our capital or voting rights.

The AFM will publish all notifications on
its public website (www.afm.nl).

Non-compliance with the notification obligations of Chapter 5.3 FMSA can lead to imprisonment or criminal
fines, or administrative fines or other administrative sanctions. In addition, non-compliance with these notification obligations may lead to civil sanctions, including, without limitation, suspension of the voting rights attaching to our shares
held by the offender for a maximum of three years, (suspension and) nullification of a resolution adopted by our General Meeting of shareholders (if it is likely that such resolution would not have been adopted if the offender had not voted) and a
prohibition for the offender to acquire our Common Shares or votes for a period of not more than five years.

Taxation

The following is a general summary of certain material United States federal income and The Netherlands tax consequences to holders of our Common
Shares (collectively, U.S. Holders) who are (i) citizens or residents of the United States, (ii) entities subject to U.S. corporate tax, (iii) certain pension trusts and other retirement or employee benefits organizations
established in the United States but generally exempt from U.S. tax, (iv) certain not-for-profit organizations established in the United States but generally exempt from U.S. tax, (v) United States regulated investment companies, United
States real estate investment trusts, and United States real estate mortgage conduits, and (vi) partnerships or similar pass-through entities, estates, and trusts to the extent the income of such partnerships, similar entities, estates, or
trusts is subject to tax in the United States as income of a resident in its hands or the hands of its partners, beneficiaries, or grantors. This summary does not discuss every aspect of such taxation that may be relevant to U.S. Holders. Therefore,
all prospective purchasers of our Common Shares who would be U.S. Holders are advised to consult their own tax advisor with respect to the United States federal, state and local tax consequences, as well as the Netherlands tax consequences, of the
ownership of our Common Shares. This summary is based upon the advice of Mintz, Levin, Cohn, Ferris, Glovsky and Popeo, P.C. with respect to tax consequences for U.S. Holders and Baker & McKenzie with respect to tax consequences under
Netherlands law.

The statements of The Netherlands and United States tax laws set out below are based on the laws in force as of the date
of this Annual Report on Form 20-F, and as a consequence are subject to any changes in United States or The Netherlands law, or in the double taxation conventions between the United States and The Netherlands, occurring after such date.

Netherlands Tax Considerations

The following
describes the material tax consequences under Netherlands law of an investment in our Common Shares. Such description is based on current Netherlands law as interpreted under officially published case law, and is limited to the tax implications for
an owner of our Common Shares who is not, or is not deemed to be, a resident of The Netherlands for purposes of the relevant tax codes (a non-resident Shareholder or Shareholder).

Dividend Withholding Tax

General.Upon distribution of dividends, we would be obligated to withhold 15% dividend tax at source and to pay the amount withheld to The Netherlands tax authorities. The term dividends
means income from shares or other rights participating in profits, as well as income from other corporate rights that is subjected to the same taxation treatment as income from shares by the laws of The Netherlands. Dividends include dividends in
cash or in kind, constructive dividends, certain repayments of capital qualified as dividends, interest on loans that are treated as equity for Netherlands corporate income tax purposes and liquidation proceeds in excess of, for Netherlands tax
purposes, recognized paid-in capital. Stock dividends are also subject to withholding tax derived from our paid-in share premium which is recognized for Netherlands tax purposes.



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No withholding tax applies on the proceeds resulting from the sale or disposition of our Common Shares to
persons other than QIAGEN and our affiliates.

A Shareholder can be eligible for a reduction or a refund of Netherlands dividend
withholding tax under a tax convention which is in effect between the country of residence of the Shareholder and The Netherlands. The Netherlands has concluded such conventions with, among others, the United States, Canada, Switzerland, Japan and
virtually all EU Member States.

U.S. Shareholders.Under the Tax Convention between The Netherlands
and the United States, or Convention, the withholding tax on dividends we pay to a resident of the United States (as defined in the Convention) who is entitled to the benefits of the Convention, may be reduced to 5% (in the case of a corporate U.S.
Shareholder that holds 10% or more of the voting power of a Netherlands company) or 15% (in the case of other U.S. Shareholders), unless such U.S. shareholders have a permanent establishment in The Netherlands with which the shares are effectively
connected.

A full exemption from Netherlands withholding tax may apply to certain U.S. corporate shareholders owning at least 80% of
QIAGEN voting power for a period of at least twelve months prior to the distribution, again provided such U.S. shareholders do not have a permanent establishment in The Netherlands with which the shares are effectively connected.

Dividends we pay to U.S. pension funds and U.S. tax exempt organizations may be eligible for an exemption from dividend withholding tax. The Netherlands
and the United States have entered into a mutual agreement to clarify the entitlement of exempt pension funds to the benefits under the Convention.

Dividend Stripping.    A refund, reduction, exemption, or credit of Netherlands dividend withholding tax on the basis of Netherlands tax law or on the basis of a tax treaty between The Netherlands and
another state, will only be granted if the dividends are paid to the beneficial owner (uiteindelijk gerechtigde)of the dividends. A recipient of a dividend is not considered to be the beneficial owner of a dividend in an event of
dividend stripping, in which he has paid a consideration related to the receipt of such dividend. In general terms, dividend stripping can be described as the situation in which a foreign or domestic person (usually, but not
necessarily, the original shareholder) has transferred his shares or his entitlement to the dividend distributions to a party that has a more favorable right to a refund or reduction of Netherlands dividend withholding tax than the foreign or
domestic person. In these situations, the foreign or domestic person (usually the original shareholder) avoids Netherlands dividend withholding tax while retaining his beneficial interest in the shares and the dividend distributions, by
transferring his shares or his entitlement to the dividend distributions.

Income Tax and Corporate Income Tax

General.    A non-resident Shareholder will not be subject to Netherlands income tax with respect to dividends we
distribute on our Common Shares or with respect to capital gains derived from the sale or disposition of our Common Shares, provided that:

(a) the non-resident Shareholder has not made an election for the application of the rules of The Netherlands 2001 Income Tax Act as they apply to residents of The Netherlands;

(b) the non-resident Shareholder does not carry on or have an interest in a business in The Netherlands through a permanent establishment
or a permanent representative to which or to whom the Common Shares are attributable or deemed to be attributable;

(c) the
non-resident Shareholder does not have a direct or indirect substantial or deemed substantial interest (aanmerkelijk belang,as defined in the Netherlands tax code) in our share capital or, in the event the Shareholder does have
such a substantial interest, such interest is a business asset; and

(d) the non-resident Shareholder is not
entitled to a share in the profits of an enterprise, to which our Common Shares are attributable and that is effectively managed in The Netherlands, other than by way of securities or through an employment contract.



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In general terms, a substantial interest (aanmerkelijk belang) in our share capital
does not exist if the Shareholder (individuals as well as corporations), alone or together with his partner, does not own, directly or indirectly, 5% or more of the nominal paid-in capital of, or any class of our shares, does not have the right to
acquire 5% or more of the nominal paid-in capital of, or any class of our shares (including a call option) and does not have the right to share in our profit or liquidation revenue amounting to 5% or more of the annual profits or liquidation
revenue.

There is no all-encompassing definition of the term business asset; whether this determination can be made in general
depends on the facts presented and in particular on the activities performed by the Shareholder. If the Shareholder materially conducts a business activity, while the key interest of his investment in our Shares will not be his earnings out of the
investment in our Shares but our economic activity, an investment in our Shares will generally be deemed to constitute a business asset, in particular if the Shareholders involvement in our business will exceed regular monitoring of his
investment in our Shares.

U.S. Shareholders.    Pursuant to the Convention, the gain derived by a U.S.
Shareholder from an alienation of our Common Shares constituting a substantial interest of the Shareholder in QIAGEN, not effectively connected or deemed connected with a permanent establishment or permanent representative of the Shareholder in The
Netherlands, is not subject to Netherlands income tax or corporate income tax, provided that the gain from the alienation of our Common Shares is not derived by an individual Shareholder who has, at any time during the five-year period preceding
such alienation, been a resident of The Netherlands according to Netherlands tax law and who owns, at the time of the alienation, either alone or together with close relatives, at least 25% of any class of our shares.

Gift and Inheritance Tax

A gift or
inheritance of our Common Shares from a non-resident Shareholder will generally not be subject to a Netherlands gift and inheritance tax, provided that the Shareholder does not own a business which is, in whole or in part, carried on through a
permanent establishment or a permanent representative in The Netherlands to which or to whom our Common Shares are attributable. The Netherlands has concluded a tax convention with the United States based on which double taxation on inheritances may
be avoided if the inheritance is subject to Netherlands and/or U.S. inheritance tax and the deceased was a resident of either The Netherlands or the United States.

United States Federal Income Tax Considerations

The following summarizes the material U.S. federal income tax consequences
of the ownership of our Common Shares by an investor that purchases such Common Shares and that will hold the Common Shares as capital assets. This summary does not purport to be a complete analysis or listing of all potential tax considerations and
does not address holders subject to special treatment under U.S. federal income tax laws (including insurance companies, tax-exempt organizations, regulated investment companies, financial institutions, broker dealers or holders that own, actually
or constructively, 10% or more of our voting shares).

As used herein, references to a U.S. Holder are to a holder of our
Common Shares that is (i) a citizen or resident of the United States, (ii) a corporation organized under the laws of the United States or any political subdivision thereof, or (iii) a person or entity otherwise subject to United
States federal income taxation on a net income basis with respect to our Common Shares (including a non-resident alien or foreign corporation that holds, or is deemed to hold, our Common Shares in connection with the conduct of a U.S. trade or
business); and references to a non-U.S. Holder are to a holder that is not a U.S. person for U.S. federal income tax purposes.



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Taxation of Dividends

To the extent paid out of our current or accumulated earnings and profits, as determined under U.S. federal income tax principles, distributions, if any, made with respect to our Common Shares will be includable for
U.S. federal income tax purposes in the income of a U.S. Holder as ordinary dividend income in an amount equal to the sum of any cash and the fair market value of any property that we distribute, before reduction for Netherlands withholding tax. For
tax years beginning before 2011, such dividends will be eligible to be treated by U.S. Holder individuals as qualified dividend income subject to a maximum tax rate of 15 percent, if the shareholder receiving the dividend satisfies the
holding period requirements, and if we are not treated for our taxable year in which the dividend is paid, or our preceding taxable year, as a passive foreign investment company (see TaxationUnited States Federal Income Tax
ConsiderationsPassive Foreign Investment Company Status). To the extent that such distribution exceeds our current or accumulated earnings and profits, it will be treated as a non-taxable return of capital to the extent of the U.S.
Holders adjusted tax basis in our Common Shares and thereafter as taxable capital gain. Dividends generally will be treated as income from sources outside the United States and generally will be passive income (or, in the case of certain
holders, financial services income) for purposes of the foreign tax credit limitation. Dividends we pay will not be eligible for the dividends received deduction allowed to corporations in certain circumstances under the United States
Internal Revenue Code of 1986, as amended (the Code). A U.S. Holder may elect annually to either deduct The Netherlands withholding tax (see TaxationNetherlands Tax ConsiderationsDividend Withholding Tax) against their income
(in which case, the election will apply to all foreign income taxes such U.S. Holder paid in that year) or take the withholding taxes as a credit against their U.S. tax liability, subject to U.S. foreign tax credit limitation rules. If the dividends
are qualified for the lower applicable capital gains rate (as discussed in the above paragraph), the amount of the dividend income taken into account for calculating the foreign tax credit limitation will be in general be limited to the gross amount
of the dividend, multiplied by the reduced rate, divided by the highest rate of tax normally applicable to dividends, For the purposes of computing the foreign tax credit, dividends paid on our Common Shares will be treated as income from sources
outside the United States, but generally will be grouped separately, together with other items of passive or financial services income. Recently enacted legislation (the American Jobs Creation Act of 2004, or the Act) will
modify the foreign tax credit limitation by reducing the number of classes of foreign source income to two for taxable years beginning after December 31, 2006. Under the Act, dividends paid on our Common Shares will generally constitute passive
category income but could, in the case of certain US holders, constitute general category income. The rules governing the foreign tax credit are complex. We urge you to consult with your own tax advisors regarding the availability of the
foreign tax credit in your particular circumstances.

Dividends we pay in a currency other than the U.S. dollar will be included in the
income of a U.S. Holder in a U.S. dollar amount based upon the exchange rate in effect on the date of receipt. A U.S. Holder will have a tax basis in such foreign currency for U.S. federal income tax purposes equal to its U.S. dollar value on the
date of receipt. Any gain or loss on a subsequent disposition of such foreign currency (including a subsequent conversion into U.S. dollars) will be ordinary income or loss. Such gain or loss will generally be income from sources within the U.S. for
foreign tax credit limitation purposes.

A non-U.S. Holder generally will not be subject to U.S. federal income tax or withholding tax on
distributions with respect to our Common Shares that are treated as dividend income for U.S. federal income tax purposes unless such dividends are effectively connected with the conduct of a trade or business within the United States by such
non-U.S. Holder, (and are attributable to a permanent establishment maintained in the United States by such non-U.S. Holder, if an applicable income tax treaty so requires as a condition for such non-U.S. Holder to be subject to U.S. taxation on a
net income basis in respect of income from our Common Shares), in which case the non-U.S. Holder generally will be subject to tax in respect of such dividends in the same manner as a U.S. Holder. Any such effectively connected dividends received by
a non-United States corporation may also, under certain circumstances, be subject to an additional branch profits tax at a 30% rate or such lower rate as may be specified by an applicable income tax treaty. A non-U.S. Holder generally
will not be subject to U.S. federal income tax or withholding tax on distributions with respect to our Common Shares that



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are treated as capital gain for U.S. federal income tax purposes unless such holder would be subject to U.S. federal income tax on gain realized on the sale
or other disposition of our Common Shares, as discussed below.

Taxation of Capital Gains

Subject to the PFIC rules discussed below, upon the sale or other disposition of our Common Shares, a U.S. Holder will recognize gain or loss for U.S.
federal income tax purposes in an amount equal to the difference between the amount realized on the disposition of our Common Shares and the U.S. Holders adjusted tax basis in our Common Shares. Such gain or loss generally will be subject to
U.S. federal income tax. An individual U.S. Holder is generally subject to a maximum capital gains rate of 15% for our Common Shares held for more than a year. For U.S. federal income tax purposes, capital losses are subject to limitations on
deductibility. Gain realized by a U.S. Holder on the sale or other disposition of our Common Shares generally will be treated as income from sources within the United States for purposes of the foreign tax credit limitation.

A non-U.S. Holder will not be subject to U.S. federal income tax or withholding tax on gain realized on the sale or other disposition of our Common
Shares unless (i) the gain is effectively connected with a trade or business of the non-U.S. Holder in the United States (and is attributable to a permanent establishment maintained in the United States by such non-U.S. Holder, if an applicable
income tax treaty so requires as a condition for such non-U.S. Holder to be subject to U.S. taxation on a net income basis in respect of gain from the sale or other disposition of our Common Shares) or (ii) such holder is an individual who is
present in the United States for 183 days or more in the taxable year of the sale, and certain other conditions are met. Effectively connected gains realized by a corporate Non-U.S. Holder may also, under certain circumstances, be subject to an
additional branch profits tax at a 30% rate or such lower rate as may be specified by an applicable income tax treaty.

Passive Foreign
Investment Company Status

We may be classified as a passive foreign investment company (PFIC) for U.S.
federal income tax purposes if certain tests are met. We will be a PFIC with respect to a U.S. Holder if for any taxable year in which the U.S. Holder held our Common Shares, either (i) 75% or more of our gross income for the taxable year is
passive income; or (ii) the average value of our assets (during the taxable year) which produce or are held for the production of passive income is at least 50% of the average value of all assets for such year. Passive income means, in general,
dividends, interest, royalties, rents (other than rents and royalties derived in the active conduct of a trade or business and not derived from a related person), annuities, and gains from assets which would produce such income other than sales of
inventory. For the purpose of the PFIC tests, if a foreign corporation owns at least 25% by value of the stock of another corporation, the foreign corporation is treated as owning its proportionate share of the assets of the other corporation, and
as if it had received directly its proportionate share of the income of such other corporation. The effect of this special provision with respect to QIAGEN and our ownership of our subsidiaries is that we, for purposes of the income and assets tests
described above, will be treated as owning directly our proportionate share of the assets of our subsidiaries and of receiving directly our proportionate share of each of those companies income, if any, so long as we own, directly or
indirectly, at least 25% by value of the particular companys stock. Active business income of our subsidiaries will be treated as our active business income, rather than as passive income. Based on our current income, assets and activities, we
do not believe that we are currently a PFIC. No assurances can be made, however, that the IRS will not challenge this position or that we will not subsequently become a PFIC. Following the close of any tax year, we intend to promptly send a notice
to all shareholders of record at any time during such year, if we determine that we are a PFIC.

Prospective purchasers of our Common
Shares are urged to consult their tax advisors regarding the PFIC rules and their effect on an investment in our Common Shares, with particular regard to (i) the advisability of making the qualified election in the event that we notify the
shareholders that we have become a PFIC in any taxable year, or (ii) the advisability of making the mark-to-market election provided in the tax law.



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Backup Withholding and Information Reporting

In general, dividend payments, or other taxable distributions, paid within the United States or through certain U.S.-related financial intermediaries on
our Common Shares will be subject to information reporting requirements and backup withholding tax at the rate of 28% for a non-corporate United States person and, who also:



| |  |  | fails to provide an accurate taxpayer identification number;
| | - |  | ------------------------------------------------------------



| |  |  | is notified by the Internal Revenue Service that the individual has failed to report all interest or dividends required to be shown on the Federal income tax
returns; or
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | in certain circumstances, fails to comply with applicable certification requirements.
| | - |  | -------------------------------------------------------------------------------------

Certain corporations and persons that are not United States persons may be required to establish their exemption from information reporting and backup
withholding by certifying their status on Internal Revenue Service Form W-8 or W-9.

If a United States person sells our Common Shares to
or through a United States office of a broker, the payment of the proceeds is subject to both United States backup withholding and information reporting unless the individual can certify that they are a non-U.S. person, under penalties of perjury,
or they otherwise establish an exemption. If a United States person sells our Common Shares through a non-U.S. office of a non-U.S. broker and the sale proceeds are paid to the person outside the United States then information reporting and backup
withholding generally will not apply to that payment. However, United States information reporting requirements, but not backup withholding, will apply to a payment of sales proceeds, even if that payment is made to the United States person outside
the United States, if the person sells our Common Shares through a non-U.S. office of a broker that is a U.S. person or has certain other contacts with the United States.

A Holder generally may obtain a refund of any amounts withheld under the backup withholding rules that exceed such holders income tax liability by filing a refund claim with the United States Internal Revenue
Service.

Foreign Currency Issues

If
dividends are paid in euros, the amount of the dividend distribution included in the income of a U.S. Holder will be the U.S. dollar value of the payments made in euros, determined at a spot, euro/U.S. dollar rate applicable to the date such
dividend is includible in the income of the U.S. Holder, regardless of whether the payment is in fact converted into U.S. dollars. Generally, gain or loss (if any) resulting from currency exchange fluctuations during the period from the date the
dividend is paid to the date such payment is converted into U.S. dollars will be treated as ordinary income or loss. We have never paid cash dividends on our share capital and do not intend to do so for the foreseeable future.

Documents on Display

Documents referred to in this
Annual Report may be inspected at our principal executive office located at Spoorstraat 50, 5911 KJ Venlo, The Netherlands.

Item 11.    Quantitative and Qualitative Disclosures About Market Risk

Our market
risk relates primarily to interest rate exposures on cash, marketable securities and borrowings and foreign currency exposures on intercompany transactions. The overall objective of our risk management is to reduce the potential negative earnings
effects from changes in interest and foreign exchange rates. Exposures are managed through operational methods and financial instruments. We do not use financial instruments for trading or other speculative purposes.



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Interest Rate Risk

At December 31, 2007, we had $347.3 million in cash and cash equivalents and $2.3 million in marketable equity securities. Interest income earned on our cash investments is affected by changes in the relative
levels of market interest rates. We only invest in high-grade investment securities. A hypothetical adverse 10% movement in market interest rates would decrease 2007 earnings by approximately $224,000.

Borrowings against lines of credit are at variable interest rates. We had $4,000 outstanding against our lines of credit at December 31, 2007. A
hypothetical adverse 10% movement in market interest rates would not have materially impacted our financial statements.

At
December 31, 2007, we had $950.0 million in long-term debt, of which $500.0 million was at a variable rate. A hypothetical adverse 10% movement in market interest rates would decrease 2007 earnings by approximately $1.8 million, based on the
period-end interest rate.

Currency Fluctuations

We operate on an international basis. A significant portion of our revenues and expenses are earned and incurred in currencies other than the U.S. dollar. The euro is the most significant such currency, with others
including the British pound, Japanese yen, Swiss franc, and Canadian and Australian dollars. Fluctuations in the value of the currencies in which we conduct our business relative to the U.S. dollar have caused and will continue to cause U.S. dollar
translations of such currencies to vary from one period to another. Due to the number of currencies involved, the constantly changing currency exposures, and the potential substantial volatility of currency exchange rates, we cannot predict the
effect of exchange rate fluctuations upon future operating results. However, because we have substantial expenses as well as revenues in each of our principal functional currencies, the exposure of our financial results to currency fluctuations is
reduced. In general terms, depreciation of the U.S. dollar against our other foreign currencies, such as occurred in 2007 and 2006 with respect to the euro, will increase reported net sales. However, this impact normally will be at least partially
offset in the results of operations by gains or losses from foreign currency transactions.

Currency Hedging

In the ordinary course of business, we purchase financial instruments with which we intend to hedge foreign currency fluctuations with the principal
objective of minimizing the risks and/or costs associated with global financial and operating activities. Generally, we hedge a majority of the anticipated cash flow that we expect to exchange into other currencies, subject to our short-term
financing needs. We do not utilize financial instruments for trading or other speculative purposes.

At December 31, 2007 and 2006, we
held contracts which effectively fix the exchange rate at which intercompany loans will be settled, so that gains or losses on the forward contracts offset the losses or gains from changes in the value of the underlying intercompany loans. We have
determined that no ineffectiveness exists related to these derivatives.

We have entered into forward arrangements which qualify for hedge
accounting as cash flow hedges of foreign currency denominated liabilities. At December 31, 2007 and 2006, these forward contracts totaled $44.0 million as a hedge to currency risk on intercompany loans. The contracts mature in July 2011 and
had fair market values at December 31, 2007 and 2006 of approximately $5.1 million and $2.8 million, respectively, which is included in other long-term liabilities in the accompanying consolidated balance sheets.

In addition in 2007 and 2006, we had forward arrangements which qualify as cash flow hedges of foreign currency denominated liabilities. At
December 31, 2007, the Company held a contract for Canadian dollars 5.0 million which matured in February 2008 and had a fair market value of $788,000 at December 31, 2007



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included in other liabilities. Additionally the Company held a contract for Japanese yen 160.0 million which matures in March 2008 and had a fair market
value of $63,000 at December 31, 2007 which is included in prepaid and other assets at December 31, 2007.

At December 31,
2006, we held a contract for Canadian dollars 8.0 million which matured in February 2007 and had a fair market value of $126,000 at December 31, 2006. Additionally, we held a contract for Japanese yen 200.0 million which matured in
April 2007 and had a fair market value of $190,000 at December 31, 2006. The fair values of these forwards are included in prepaid and other assets at December 31, 2006.

In the ordinary course of business, we purchase foreign currency exchange options to manage potential losses from foreign currency exposures. These
options give us the right, but not the obligation, to purchase foreign currencies in exchange for U.S. dollars at predetermined exchange rates. The principal objective of such options is to minimize the risks and/or costs associated with global
financial and operating activities. We do not utilize financial instruments for trading or other speculative purposes. The fair market values of these options were not significant at December 31, 2007 and 2006. Gains or losses from changes in
the fair market values are included in other miscellaneous income (expense), net.

Foreign Currency Exchange Rate Risk

We have significant production and manufacturing facilities located in Germany and Switzerland, and intercompany sales of inventory expose us to foreign
currency exchange rate risk. Intercompany sales of inventory are generally denominated in the local currency of the subsidiary purchasing the inventory in order to centralize foreign currency risk with the manufacturing subsidiary. Payment for
intercompany purchases of inventory is required within 30 days from invoice date. The delay between the date the manufacturing subsidiaries record revenue and the date when the payment is received from the purchasing subsidiaries exposes us to
foreign exchange risk. The exposure results primarily from those transactions between the manufacturing subsidiaries and the U.S.

The
foreign currency exchange rate risk is partially offset by transactions of the manufacturing subsidiary denominated in U.S. dollars. Hedging instruments include foreign currency put options that are purchased to protect the majority of the existing
and/or anticipated receivables resulting from intercompany sales from the manufacturing subsidiary to the U.S. These options give us the right, but not the obligation, to purchase foreign currencies in exchange for U.S. dollars at predetermined
exchange rates. Management does not believe that our exposure to foreign currency exchange rate risk is material.

Item 12.    Description of Securities other than Equity Securities

Not Applicable.



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PART II

Item 13.    Defaults, Dividend Arrearages and Delinquencies

Not applicable.

Item 14.    Material Modifications to the Rights of Security Holders and Use of Proceeds

Not applicable.

Item 15.    Controls and Procedures

Disclosure Controls and Procedures

Our Managing Directors, with the assistance of other members of management, performed an evaluation of the effectiveness of the design
and operation of our disclosure controls and procedures, as that term is defined in Rule 13a-15(e) of the Securities Exchange Act of 1934, as amended, within 90 days of the date of this report. Based on that evaluation, they concluded that our
disclosure controls and procedures are effective to provide reasonable assurance that information required to be disclosed in this report is recorded, processed, summarized and reported on a timely basis.

There are inherent limitations to the effectiveness of any system of disclosure controls and procedures, no matter how well designed, such as the
possibility of human error and the circumvention or overriding of the controls and procedures. Therefore, even those systems determined to be effective may not prevent or detect misstatements and can provide only reasonable assurance of achieving
their control objectives. In addition, any determination of effectiveness of controls is not a projection of any effectiveness of those controls to future periods, as those controls may become inadequate because of changes in conditions or the
degree of compliance with the policies or procedures may deteriorate.

Report of Management on Internal Control over Financial Reporting

Our management is responsible for establishing and maintaining adequate internal control over financial reporting as defined in Rules
13(a)-15(f) and 15(d)-15(f) under the Securities Exchange Act of 1934, as amended. The Companys system of internal controls over financial reporting is designed to provide reasonable assurance regarding the reliability of financial reporting
and the preparation of the consolidated financial statements in accordance with generally accepted accounting principles.

Because of its
inherent limitations, internal control over financial reporting may not prevent or detect misstatements and even when determined to be effective can provide only reasonable assurance with respect to financial statement preparation and presentation.
Projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

Our management assessed the effectiveness of the Companys internal control over financial reporting as of December 31, 2007. In
making this assessment, management used the criteria set forth by the Committee of Sponsoring Organizations of the Treadway Commission (COSO) in Internal Control-Integrated Framework.

Based on our assessment under the COSO Internal Control-Integrated Framework, management believes that, as of December 31, 2007, our internal
control over financial reporting is effective.Managements assessment of and conclusion on the effectiveness of internal control over financial reporting did not include the internal controls of Digene, which is included in the 2007
consolidated financial statements of QIAGEN N.V. and Subsidiaries and constituted 57% of total assets as of December 31, 2007 and 15% of revenues for the year then ended. Securities and Exchange Commission guidelines permit companies to exclude
acquisitions from their assessment of internal control over financial reporting during the first year following an acquisition.



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Ernst & Young AG Wirtschaftsprüfungsgesellschaft Steuerberatungsgesellschaft the independent
registered public accounting firm that audited our consolidated financial statements for the year ended December 31, 2007, has issued an attestation report on managements assessment of our internal control over financial reporting, which
is included in this Annual Report on Form 20-F. This report appears on page F-3.

Changes in Internal Control over Financial Reporting

There has been no change in our internal control over financial reporting during 2007 that has materially affected, or is reasonably
likely to materially affect, our internal control over financial reporting.

Item 16A.    Audit Committee Financial Expert

The Supervisory Board has designated
Dr. Werner Brandt as an audit committee financial expert as that term is defined in the SEC rules adopted pursuant to the Sarbanes-Oxley Act. Dr. Brandt is independent as defined in the Marketplace Rules of the
NASDAQ as applicable to Audit Committees.

Item 16B.    Code of Ethics

QIAGEN has in place a Code of Conduct which
qualifies as a code of ethics, as required by SEC and NASDAQ Marketplace Rules. The Code of Conduct applies to all of QIAGENs employees, including our principal executive officer, principal financial officer, principal accounting officer or
controller and other persons performing similar functions. The full text of the Code of Conduct is available on our website at www.qiagen.com.

Item 16C.    Principal Accountant Fees and Services

Audit Committee Pre-Approval Policies and
Procedures

The Audit Committee has adopted a pre-approval policy that requires the pre-approval of all services performed for us by
our independent registered public accounting firm. Additionally, the Audit Committee has delegated to the Committee Chairman full authority to approve any management request for pre-approval provided the Chairman presents any approval given at its
next scheduled meeting. All audit-related services, tax services and other services rendered by our independent registered public accounting firm or their affiliates were pre-approved by the Audit Committee and are compatible with maintaining the
auditors independence.

At our 2007 Annual General Meeting of Shareholders held on June 20, 2007, our shareholders appointed
Ernst & Young AG Wirtschaftsprüfungsgesellschaft Steuerberatungsgesellschaft to serve as our auditors for the fiscal year ended December 31, 2007. Set forth below are the total fees billed (or expected to be billed), on a
consolidated basis, by Ernst & Young AG and affiliates for 2007, and Ernst & Young LLP and affiliates for 2006, for providing audit and other professional services in each of the last two fiscal years:



|                   |  |      |           |      |   |          
|------------------ |  | ---- | --------- | ---- | - | ---------
|                   |  | 2007 |           | 2006
|Audit fees         |  | $    | 2,576,000 |      | $ | 1,672,000
|Audit related fees |  |      | 773,000   |      |   | 349,000  
|Tax fees           |  |      | 88,000    |      |   | 196,000  
|All other fees     |  |      | 14,000    |      |   | 368,000  
|                   |  |      |           |      |   |          
|Total              |  | $    | 3,451,000 |      | $ | 2,585,000
|                   |  |      |           |      |   |          

Audit fees consist of fees and expenses billed for the annual audit and quarterly review of
QIAGENs consolidated financial statements. They also include fees billed for other audit services, which are those services that only the statutory auditor can provide, and include the review of documents filed with the Securities Exchange
Commission.



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Audit-related fees consist of fees and expenses billed for assurance and related services that are
related to the performance of the audit or review of QIAGENs financial statements and include consultations concerning financial accounting and reporting standards and review of the opening balance sheets of newly acquired companies.

Tax fees include fees and expenses billed for tax compliance services, including assistance on the preparation of tax returns and claims
for refund; tax consultations, such as assistance and representation in connection with tax audits and appeals, tax advice related to mergers and acquisitions, transfer pricing, and requests for rulings or technical advice from taxing authorities;
tax planning services; and expatriate tax compliance, consultation and planning services.

All other fees include fees and expenses billed
for services such as information technology projects, transaction due diligence and cost segregation studies as allowed by the Sarbanes Oxley Act of 2002.

Item 16D.    Exemptions From the Listing Standards for Audit Committees

Not
applicable.

Item 16E.    Purchases of Equity Securities by the Issuer and Affiliated Purchasers

Not applicable.



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PART III

Item 17.    Financial Statements

See Item 18.

Item 18.    Financial Statements

See pages F-1 through F-48 included herein.



| | (A) | The following financial statements, together with the reports of Ernst & Young thereon, are filed as part of this annual report:
| | --- | --------------------------------------------------------------------------------------------------------------------------------



|                                                                         |  |     
|------------------------------------------------------------------------ |  | ----
|Report of Independent Registered Public Accounting Firm                  |  | F-1 
|Report of Independent Registered Public Accounting Firm                  |  | F-2 
|Report of Independent Registered Public Accounting Firm                  |  | F-3 
|Consolidated Balance Sheets                                              |  | F-4 
|Consolidated Statements of Income                                        |  | F-6 
|Consolidated Statements of Shareholders Equity and Comprehensive Income |  | F-7 
|Consolidated Statements of Cash Flows                                    |  | F-8 
|Notes to Consolidated Financial Statements                               |  | F-10
|Schedule IIValuation and Qualifying Accounts                            |  | S-1 

Item 19.    Exhibits



|      |  |                                                                                                                                                                                                                            
|----- |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|      | 
|*1.1  |  | Articles of Association as confirmed by notorial deed as of October 11, 2007 (English translation)                                                                                                                         
|      | 
|2.3   |  | Indenture between QIAGEN Finance (Luxembourg) S.A., QIAGEN N.V., Deutsche Trustee Company Limited, Deutsche Bank AG and Deutsche Bank Luxembourg S.A. dated August 18,
2004 (3)                                            
|      | 
|2.4   |  | Agreement In Connection With The Delivery Of Ordinary Shares In The Share Capital Of QIAGEN N.V. Pursuant To Convertible Notes Due 2024 Issued By QIAGEN Finance (Luxembourg) S.A. dated August
18, 2004 (3)               
|      | 
|2.5   |  | Amendment to Agreement In Connection With The Delivery Of Ordinary Shares In The Share Capital Of QIAGEN N.V. Pursuant To Convertible Notes Due 2024 Issued By QIAGEN Finance (Luxembourg) S.A.
dated July 1, 2006 (5)     
|      | 
|2.6   |  | Indenture between QIAGEN Euro Finance (Luxembourg) S.A., QIAGEN N.V., Deutsche Trustee Company Limited, Deutsche Bank AG and Deutsche Bank Luxembourg S.A. dated May 16, 2006 (5)                                          
|      | 
|2.7   |  | Agreement In Connection With The Delivery Of Ordinary Shares In The Share Capital Of QIAGEN N.V. Pursuant To Convertible Notes Due 2026 Issued By QIAGEN Euro Finance (Luxembourg) S.A. dated May
8, 2006 (5)              
|      | 
|2.8   |  | Amendment to Agreement In Connection With The Delivery Of Ordinary Shares In The Share Capital Of QIAGEN N.V. Pursuant To Convertible Notes Due 2026 Issued By QIAGEN Euro Finance (Luxembourg)
S.A. dated July 1, 2006 (5)
|      | 
|2.9   |  | Term Loan and Revolving Credit Facilities Agreement, dated July 13, 2007, between QIAGEN N.V. and Deutsche Bank AG (filed as Exhibit (b)) (7)                                                                              
|      | 
|*2.10 |  | Syndication and Amendment Agreement, dated September 25, 2007, between QIAGEN N.V. and Deutsche Bank AG                                                                                                                    



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|      |  |                                                                                                                                                                                          
|----- |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|      | 
|4.1   |  | Lease Between QIAGEN GmbH and Gisantus Grundstucksverwaltungsgesellscharft mbH, dated January 13, 1997 (the Max-Volmer-Strasse 4 Lease) (Filed as Exhibit 10.3) (1)                    
|      | 
|4.2   |  | The Max-Volmer-Strasse 4 Lease Summary (Filed as Exhibit 10.3(a)) (1)                                                                                                                  
|      | 
|*4.3  |  | Lease, dated as of March 2, 1998, by and between Digene and ARE-Metropolitan Grove I, LLC                                                                                                
|      | 
|*4.4  |  | Fourth Amendment to Lease, dated November 15, 2005, between ARE-Metropolitan Grove I, LLC and Digene Corporation                                                                         
|      | 
|4.5   |  | Agreement and Plan of Merger among QIAGEN N.V., QIAGEN North American Holdings, Inc., QIAGEN Merger Sub, LLC and Digene Corporation, dated as of June 3, 2007 (Filed as Exhibit 2.1)
(6).
|      | 
|4.6   |  | Consultancy Agreement between QIAGEN GmbH and Dr. Metin Colpan dated December 4, 2003 (Filed as Exhibit 4.23) (3)                                                                        
|      | 
|4.7   |  | Amendment No. 1 to the Consultancy Agreement between QIAGEN GmbH and Dr. Metin Colpan dated February 11, 2004 (4)                                                                        
|      | 
|4.8   |  | QIAGEN N.V. Amended and Restated Stock Plan (Filed as Exhibit 99.4) (2)                                                                                                                  
|      | 
|4.9   |  | Digene Corporation Amended and Restated Omnibus Plan (Filed as Exhibit 99.2) (2)                                                                                                         
|      | 
|4.10  |  | Digene Corporation Amended and Restated Stock Option Plan (Filed as Exhibit 99.3) (2)                                                                                                    
|      | 
|4.11  |  | Digene Corporation Amended and Restated Equity Incentive Plan (Filed as Exhibit 99.1) (2)                                                                                                
|      | 
|*8.1  |  | List of Subsidiaries                                                                                                                                                                     
|      | 
|*12.1 |  | Certifications under Section 302; Peer M. Schatz, Managing Director and Chief Executive Officer                                                                                          
|      | 
|*12.2 |  | Certifications under Section 302; Roland Sackers, Managing Director and Chief Financial Officer                                                                                          
|      | 
|*13.1 |  | Certifications under Section 906; Peer M. Schatz, Managing Director and Chief Executive Officer and Roland Sackers, Managing Director and Chief Financial Officer                        
|      | 
|*15.1 |  | Consent of Independent Registered Public Accounting Firm                                                                                                                                 
|      | 
|*15.2 |  | Consent of Independent Registered Public Accounting Firm                                                                                                                                 



|* | Filed herewith.
|- | ---------------

|(1) | Incorporated by reference to Form 20-F Annual Report of QIAGEN N.V. filed with the Securities and Exchange Commission on March 31, 2000.
|--- | ----------------------------------------------------------------------------------------------------------------------------------------

|(2) | Incorporated by reference to Registration Statement of QIAGEN N.V. on Form S-8 filed with the Securities and Exchange Commission on August 7, 2007.
|--- | ---------------------------------------------------------------------------------------------------------------------------------------------------

|(3) | Incorporated by reference to Form 20-F Annual Report of QIAGEN N.V. filed with the Securities and Exchange Commission on April 19, 2005.
|--- | ----------------------------------------------------------------------------------------------------------------------------------------

|(4) | Incorporated by reference to Form 20-F Annual Report of QIAGEN N.V. filed with the Securities and Exchange Commission on April 3, 2006.
|--- | ---------------------------------------------------------------------------------------------------------------------------------------

|(5) | Incorporated by reference to Form 20-F Annual Report of QIAGEN N.V. filed with the Securities and Exchange Commission on April 2, 2007.
|--- | ---------------------------------------------------------------------------------------------------------------------------------------

|(6) | Incorporated by reference to Form F-4 (File No. 333-143791) of QIAGEN N.V. filed with the Securities and Exchange Commission on June 15, 2007.
|--- | ----------------------------------------------------------------------------------------------------------------------------------------------

|(7) | Incorporated by reference to Amendment No. 2 to Schedule TO of QIAGEN N.V. filed with the Securities and Exchange Commission on July 18, 2007.
|--- | ----------------------------------------------------------------------------------------------------------------------------------------------



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SIGNATURES

The registrant hereby certifies that it meets all of the requirements for filing on Form 20-F and
that it has duly caused and authorized the undersigned to sign this annual report on its behalf.

|                      |  |  |  |             |  |                    |  |                                        
|--------------------- |  |  |  | ----------- |  | ------------------ |  | ---------------------------------------
|                      |  |  |  | QIAGEN N.V.
|                      |  | 
|Dated: March 20, 2008 |  |  |  |            
|                      |  |  |  | By:         |  | /s/ Peer M. Schatz
|                      |  |  |  |             |  |                    |  | Peer M. Schatz, Chief Executive Officer



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QIAGEN N.V. AND SUBSIDIARIES

INDEX TO CONSOLIDATED FINANCIAL STATEMENTS



|                                                                         |  |     
|------------------------------------------------------------------------ |  | ----
|                                                                         |  | Page
|Report of Independent Registered Public Accounting Firm                  |  | F-1 
|Report of Independent Registered Public Accounting Firm                  |  | F-2 
|Report of Independent Registered Public Accounting Firm                  |  | F-3 
|Consolidated Balance Sheets                                              |  | F-4 
|Consolidated Statements of Income                                        |  | F-6 
|Consolidated Statements of Shareholders Equity and Comprehensive Income |  | F-7 
|Consolidated Statements of Cash Flows                                    |  | F-8 
|Notes to Consolidated Financial Statements                               |  | F-10



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R
EPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

The Supervisory Board and Shareholders of QIAGEN N.V. and Subsidiaries

We have audited the accompanying consolidated balance sheet of QIAGEN N.V. and Subsidiaries as of December 31, 2007, and the related
consolidated statement of income, shareholders equity and comprehensive income and cash flows for the year then ended. Our audit also included the financial statement schedule for the year ended December 31, 2007 listed in the Index at Item
19(A). These financial statements and schedule are the responsibility of the Companys management. Our responsibility is to express an opinion on these financial statements and schedule based on our audit.

We conducted our audit in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we
plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial
statements. An audit also includes assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. We believe that our audit provides a reasonable basis for
our opinion.

In our opinion, the financial statements referred to above present fairly, in all material respects, the consolidated
financial position of QIAGEN N.V. and Subsidiaries at December 31, 2007, and the consolidated results of their operations and their cash flows for the year then ended, in conformity with U.S. generally accepted accounting principles. Also, in our
opinion, the related financial statement schedule for the year ended December 31, 2007, when considered in relation to the basic financial statements taken as a whole, presents fairly in all material respects the information set forth therein.

As discussed in Note 12 to the consolidated financial statements, QIAGEN N.V. changed its method of accounting for uncertainties in income
taxes in 2007 upon adoption of Financial Accounting Standards Board (FASB) Interpretation No. 48, Accounting for Uncertainty in Income Taxes, an Interpretation of FASB Statement No. 109.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States), QIAGEN N.V.s internal
control over financial reporting as of December 31, 2007, based on criteria established in Internal ControlIntegrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission and our report dated March 12, 2008
expressed an unqualified opinion thereon.

/s/ Ernst & Young AG

Wirtschaftsprüfungsgesellschaft

Steuerberatungsgesellschaft

Mannheim, Germany

March 12, 2008



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R
EPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

The Supervisory Board and Shareholders of QIAGEN N.V. and Subsidiaries

We have audited QIAGEN N.V. and Subsidiaries internal control over financial reporting as of December 31, 2007, based on
criteria established in Internal ControlIntegrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (the COSO criteria). QIAGEN N.V. and Subsidiaries management is responsible for
maintaining effective internal control over financial reporting, and for its assessment of the effectiveness of internal control over financial reporting included in the accompanying Managements Report on Internal Control Over Financial
Reporting. Our responsibility is to express an opinion on the companys internal control over financial reporting based on our audit.

We conducted our audit in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective
internal control over financial reporting was maintained in all material respects. Our audit included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, testing and evaluating
the design and operating effectiveness of internal control based on the assessed risk, and performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion.

A companys internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability
of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A companys internal control over financial reporting includes those policies and procedures
that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to
permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the
company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the companys assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any
evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

As indicated in the report of management on Internal Control Over Financial Reporting included in Item 15, managements assessment of and conclusion
on the effectiveness of internal control over financial reporting did not include the internal controls of Digene Corporation, which is included in the 2007 consolidated financial statements of QIAGEN N.V. and Subsidiaries and constituted 57% of
total assets as of December 31, 2007 and 15% of revenues for the year then ended. Our audit of internal control over financial reporting of QIAGEN N.V. and Subsidiaries also did not include an evaluation of the internal control over financial
reporting of Digene Corporation.

In our opinion, QIAGEN N.V. and Subsidiaries maintained, in all material respects, effective internal
control over financial reporting as of December 31, 2007, based on the COSO criteria.

We have also audited, in accordance with the
standards of the Public Company Accounting Oversight Board (United States), the consolidated balance sheet of QIAGEN N.V. and Subsidiaries as of December 31, 2007, and the related consolidated statement of income, shareholders equity and
comprehensive income and cash flows for the year then ended of QIAGEN N.V. and Subsidiaries and our report dated March 12, 2008 expressed an unqualified opinion thereon.

/s/ Ernst & Young AG

Wirtschaftsprüfungsgesellschaft

Steuerberatungsgesellschaft

Mannheim, Germany

March 12, 2008



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##### Table of Contents

R
EPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

The Supervisory Board and Shareholders of QIAGEN N.V. and Subsidiaries

We have audited the accompanying consolidated balance sheet of QIAGEN N.V. and Subsidiaries as of December 31, 2006, and the related
consolidated statements of income, shareholders equity and comprehensive income, and cash flows for the years ended December 31, 2006 and 2005. Our audits also included the financial statement schedule listed in the Index at
Item 19(A) for each of the two years in the period ended December 31, 2006. These financial statements and schedule are the responsibility of the Companys management. Our responsibility is to express an opinion on these financial
statements based on our audits.

We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board
(United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit also includes examining, on a test basis, evidence
supporting the amounts and disclosures in the financial statements, assessing the accounting principles used and significant estimates made by management, and evaluating the overall financial statement presentation. We believe that our audits
provide a reasonable basis for our opinion.

In our opinion, the financial statements referred to above present fairly, in all material
respects, the consolidated financial position of QIAGEN N.V. and Subsidiaries at December 31, 2006 and the consolidated results of their operations and their cash flows for the years ended December 31, 2006 and 2005 in conformity with U.S.
generally accepted accounting principles. Also, in our opinion, the information in the related financial statement schedule for each of the two years in the period ended December 31, 2006, when considered in relation to the basic financial
statements taken as a whole, presents fairly in all material respects the information set forth therein.

As discussed in Note 15 to the
consolidated financial statements, QIAGEN N.V. changed its method of accounting for share-based compensation in 2006 upon adoption of Statement of Financial Accounting Standards No. 123(R), Share-Based Payment.

/s/ Ernst & Young LLP

March 30,
2007

McLean, Virginia



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##### Table of Contents

Q
IAGEN N.V. AND SUBSIDIARIES

CONSOLIDATED BALANCE SHEETS

ASSETS



|                                                                                                                            |  |                    |               |      |   |              
|--------------------------------------------------------------------------------------------------------------------------- |  | ------------------ | ------------- | ---- | - | -------------
|                                                                                                                            |  | As of December 31,
|                                                                                                                            |  | 2007               |               | 2006
|Assets                                                                                                                      |  |                    |               |      |   |              
|Current Assets:                                                                                                             |  |                    |               |      |   |              
|Cash and cash equivalents                                                                                                   |  | $                  | 347,320,000   |      | $ | 430,357,000  
|Marketable securities                                                                                                       |  |                    | 2,313,000     |      |   | 52,782,000   
|Accounts receivable, net of allowance for doubtful accounts of $3.3 million and $2.6 million in 2007 and 2006, respectively |  |                    | 136,707,000   |      |   | 80,429,000   
|Notes receivable                                                                                                            |  |                    | 5,139,000     |      |   | 4,247,000    
|Income taxes receivable                                                                                                     |  |                    | 10,696,000    |      |   | 2,901,000    
|Inventories, net                                                                                                            |  |                    | 88,346,000    |      |   | 64,085,000   
|Prepaid expenses and other                                                                                                  |  |                    | 33,693,000    |      |   | 29,763,000   
|Deferred income taxes                                                                                                       |  |                    | 23,732,000    |      |   | 18,627,000   
|                                                                                                                            |  |                    |               |      |   |              
|Total current assets                                                                                                        |  |                    | 647,946,000   |      |   | 683,191,000  
|                                                                                                                            |  |                    |               |      |   |              
|Long-Term Assets:                                                                                                           |  |                    |               |      |   |              
|Property, plant and equipment, net                                                                                          |  |                    | 283,491,000   |      |   | 221,277,000  
|Goodwill                                                                                                                    |  |                    | 1,107,882,000 |      |   | 160,141,000  
|Intangible assets, net of accumulated amortization of $65.1 million and $25.9 million in 2007 and 2006, respectively        |  |                    | 639,107,000   |      |   | 118,492,000  
|Deferred income taxes                                                                                                       |  |                    | 72,128,000    |      |   | 2,409,000    
|Other assets                                                                                                                |  |                    | 24,620,000    |      |   | 26,502,000   
|                                                                                                                            |  |                    |               |      |   |              
|Total long-term assets                                                                                                      |  |                    | 2,127,228,000 |      |   | 528,821,000  
|                                                                                                                            |  |                    |               |      |   |              
|Total assets                                                                                                                |  | $                  | 2,775,174,000 |      | $ | 1,212,012,000
|                                                                                                                            |  |                    |               |      |   |              

The accompanying notes are an integral part of these consolidated financial statements.



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##### Table of Contents

QIAGEN N.V. AND SUBSIDIARIES

CONSOLIDATED BALANCE SHEETS

LIABILITIES AND SHAREHOLDERS EQUITY



|                                                                                                                                                                        |  |                    |               |      |   |              
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------- |  | ------------------ | ------------- | ---- | - | -------------
|                                                                                                                                                                        |  | As of December 31,
|                                                                                                                                                                        |  | 2007               |               | 2006
|Liabilities and Shareholders Equity                                                                                                                                    |  |                    |               |      |   |              
|Current Liabilities:                                                                                                                                                    |  |                    |               |      |   |              
|Accounts payable                                                                                                                                                        |  | $                  | 40,379,000    |      | $ | 23,806,000   
|Accrued and other liabilities (of which $6.4 million due to related parties in 2007 and 2006, see Note 18)                                                              |  |                    | 104,220,000   |      |   | 66,197,000   
|Income taxes payable                                                                                                                                                    |  |                    | 13,456,000    |      |   | 13,746,000   
|Line of credit                                                                                                                                                          |  |                    | 4,000         |      |   |             
|Current portion of long-term debt                                                                                                                                       |  |                    |              |      |   | 6,599,000    
|Current portion of capital lease obligations                                                                                                                            |  |                    | 2,769,000     |      |   | 823,000      
|Deferred income taxes                                                                                                                                                   |  |                    | 4,903,000     |      |   | 5,360,000    
|                                                                                                                                                                        |  |                    |               |      |   |              
|Total current liabilities                                                                                                                                               |  |                    | 165,731,000   |      |   | 116,531,000  
|                                                                                                                                                                        |  |                    |               |      |   |              
|Long-Term Liabilities:                                                                                                                                                  |  |                    |               |      |   |              
|Long-term debt, net of current portion (of which $450.0 million in 2007 and 2006 due to related parties, see Note 18)                                                   |  |                    | 950,000,000   |      |   | 489,592,000  
|Capital lease obligations, net of current portion                                                                                                                       |  |                    | 33,017,000    |      |   | 12,009,000   
|Deferred income taxes                                                                                                                                                   |  |                    | 225,893,000   |      |   | 21,705,000   
|Other                                                                                                                                                                   |  |                    | 8,405,000     |      |   | 6,010,000    
|                                                                                                                                                                        |  |                    |               |      |   |              
|Total long-term liabilities                                                                                                                                             |  |                    | 1,217,315,000 |      |   | 529,316,000  
|                                                                                                                                                                        |  |                    |               |      |   |              
|Minority interest                                                                                                                                                       |  |                    | 553,000       |      |   |             
|                                                                                                                                                                        |  |                    |               |      |   |              
|Commitments and Contingencies (Note 16)                                                                                                                                 |  |                    |               |      |   |              
|                                                                                                                                                                        |  |                   
|Shareholders Equity:                                                                                                                                                   |  |                    |               |      |   |              
|Preference shares, 0.01 EUR par value, authorized450,000,000 shares, no shares issued and outstanding                                                                  |  |                    |              |      |   |             
|Financing preference shares, 0.01 EUR par value, authorized40,000,000 shares, no shares issued and outstanding                                                         |  |                    |              |      |   |             
|Common Shares, 0.01 EUR par value, authorized410,000,000 shares, issued and outstanding195,335,076 and 150,167,540 shares at
December 31, 2007 and 2006, respectively |  |                    | 2,175,000     |      |   | 1,535,000    
|Additional paid-in capital                                                                                                                                              |  |                    | 925,597,000   |      |   | 178,656,000  
|Retained earnings                                                                                                                                                       |  |                    | 388,779,000   |      |   | 344,739,000  
|Accumulated other comprehensive income                                                                                                                                  |  |                    | 75,024,000    |      |   | 41,235,000   
|                                                                                                                                                                        |  |                    |               |      |   |              
|Total shareholders equity                                                                                                                                              |  |                    | 1,391,575,000 |      |   | 566,165,000  
|                                                                                                                                                                        |  |                    |               |      |   |              
|Total liabilities and shareholders equity                                                                                                                              |  | $                  | 2,775,174,000 |      | $ | 1,212,012,000
|                                                                                                                                                                        |  |                    |               |      |   |              

The accompanying notes are an integral part of these consolidated financial statements.



F-5



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##### Table of Contents

Q
IAGEN N.V. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF INCOME



|                                                               |  |                          |             |   |      |   |             |      |  |   |             |  
|-------------------------------------------------------------- |  | ------------------------ | ----------- | - | ---- | - | ----------- | ---- |  | - | ----------- | -
|                                                               |  | Years ended December 31, |            
|                                                               |  | 2007                     |             |   | 2006 |   |             | 2005 | 
|Net sales                                                      |  | $                        | 649,774,000 |   |      | $ | 465,778,000 |      |  | $ | 398,395,000 |  
|Cost of sales                                                  |  |                          | 189,773,000 |   |      |   | 139,122,000 |      |  |   | 122,755,000 |  
|Cost of salesacquisition related                              |  |                          | 2,839,000   |   |      |   | 2,046,000   |      |  |   | 439,000     |  
|Cost of salesacquisition related intangible amortization      |  |                          | 23,615,000  |   |      |   | 6,135,000   |      |  |   | 3,319,000   |  
|                                                               |  |                          |             |   |      |   |             |      |  |   |             |  
|Gross profit                                                   |  |                          | 433,547,000 |   |      |   | 318,475,000 |      |  |   | 271,882,000 |  
|                                                               |  |                          |             |   |      |   |             |      |  |   |             |  
|Operating Expenses:                                            |  |                          |             |   |      |   |             |      |  |   |             |  
|Research and development                                       |  |                          | 64,935,000  |   |      |   | 41,560,000  |      |  |   | 35,780,000  |  
|Sales and marketing                                            |  |                          | 164,690,000 |   |      |   | 115,942,000 |      |  |   | 94,312,000  |  
|General and administrative                                     |  |                          | 71,932,000  |   |      |   | 48,574,000  |      |  |   | 40,123,000  |  
|Purchased in-process research and development                  |  |                          | 25,900,000  |   |      |   | 2,200,000   |      |  |   | 3,239,000   |  
|Acquisition, integration and related costs                     |  |                          | 14,708,000  |   |      |   | 6,061,000   |      |  |   | 3,213,000   |  
|Acquisition related intangible amortization                    |  |                          | 7,711,000   |   |      |   | 2,085,000   |      |  |   | 378,000     |  
|Relocation, restructuring and related costs                    |  |                          | 538,000     |   |      |   | 1,452,000   |      |  |   |            |  
|                                                               |  |                          |             |   |      |   |             |      |  |   |             |  
|Total operating expenses                                       |  |                          | 350,414,000 |   |      |   | 217,874,000 |      |  |   | 177,045,000 |  
|                                                               |  |                          |             |   |      |   |             |      |  |   |             |  
|Income from operations                                         |  |                          | 83,133,000  |   |      |   | 100,601,000 |      |  |   | 94,837,000  |  
|                                                               |  |                          |             |   |      |   |             |      |  |   |             |  
|Other Income (Expense):                                        |  |                          |             |   |      |   |             |      |  |   |             |  
|Interest income                                                |  |                          | 19,509,000  |   |      |   | 16,359,000  |      |  |   | 7,552,000   |  
|Interest expense                                               |  |                          | (31,455,000 | ) |      |   | (11,918,000 | )    |  |   | (5,940,000  | )
|Other income, net                                              |  |                          | 4,539,000   |   |      |   | 1,026,000   |      |  |   | 815,000     |  
|                                                               |  |                          |             |   |      |   |             |      |  |   |             |  
|Total other (expense) income                                   |  |                          | (7,407,000  | ) |      |   | 5,467,000   |      |  |   | 2,427,000   |  
|                                                               |  |                          |             |   |      |   |             |      |  |   |             |  
|Income before provision for income taxes and minority interest |  |                          | 75,726,000  |   |      |   | 106,068,000 |      |  |   | 97,264,000  |  
|Provision for income taxes                                     |  |                          | 25,555,000  |   |      |   | 35,529,000  |      |  |   | 35,039,000  |  
|Minority interest                                              |  |                          | 49,000      |   |      |   |            |      |  |   |            |  
|                                                               |  |                          |             |   |      |   |             |      |  |   |             |  
|Net income                                                     |  | $                        | 50,122,000  |   |      | $ | 70,539,000  |      |  | $ | 62,225,000  |  
|                                                               |  |                          |             |   |      |   |             |      |  |   |             |  
|Basic net income per Common Share                              |  | $                        | 0.30        |   |      | $ | 0.47        |      |  | $ | 0.42        |  
|                                                               |  |                          |             |   |      |   |             |      |  |   |             |  
|Diluted net income per Common Share                            |  | $                        | 0.28        |   |      | $ | 0.46        |      |  | $ | 0.41        |  
|                                                               |  |                          |             |   |      |   |             |      |  |   |             |  
|Shares used in computing basic net income per Common Share     |  |                          | 168,457,000 |   |      |   | 149,504,000 |      |  |   | 147,837,000 |  
|                                                               |  |                          |             |   |      |   |             |      |  |   |             |  
|Shares used in computing diluted net income per Common Share   |  |                          | 175,959,000 |   |      |   | 153,517,000 |      |  |   | 150,172,000 |  
|                                                               |  |                          |             |   |      |   |             |      |  |   |             |  

The accompanying notes are an integral part of these consolidated financial statements.



F-6



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##### Table of Contents

Q
IAGEN N.V. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF SHAREHOLDERS EQUITY AND
COMPREHENSIVE INCOME



|                                                                                                           |  |               |  |                          |           |                  |   |             |                                            |   |             |                          |  |   |             |   |  |   |               |  
|---------------------------------------------------------------------------------------------------------- |  | ------------- |  | ------------------------ | --------- | ---------------- | - | ----------- | ------------------------------------------ | - | ----------- | ------------------------ |  | - | ----------- | - |  | - | ------------- | -
|                                                                                                           |  | Common Shares |  | AdditionalPaid-InCapital |           | RetainedEarnings |   |             | AccumulatedOtherComprehensiveIncome (Loss) |   |             | TotalShareholdersEquity | 
|                                                                                                           |  | Shares        |  | Amount                   |           |                  |   |            
|BALANCE AT DECEMBER 31, 2004                                                                               |  | 147,020,207   |  | $                        | 1,495,000 |                  | $ | 146,231,000 |                                            | $ | 211,975,000 |                          |  | $ | 40,675,000  |   |  | $ | 400,376,000   |  
|                                                                                                           |  |               |  |                          |           |                  |   |             |                                            |   |             |                          |  |   |             |   |  |   |               |  
|Net income                                                                                                 |  |              |  |                          |          |                  |   |            |                                            |   | 62,225,000  |                          |  |   |            |   |  |   | 62,225,000    |  
|Unrealized loss, net on hedging contracts                                                                  |  |              |  |                          |          |                  |   |            |                                            |   |            |                          |  |   | (1,372,000  | ) |  |   | (1,372,000    | )
|Unrealized gain, net on marketable securities                                                              |  |              |  |                          |          |                  |   |            |                                            |   |            |                          |  |   | 2,800,000   |   |  |   | 2,800,000     |  
|Realized loss, net on marketable securities                                                                |  |              |  |                          |          |                  |   |            |                                            |   |            |                          |  |   | 507,000     |   |  |   | 507,000       |  
|Translation adjustment                                                                                     |  |              |  |                          |          |                  |   |            |                                            |   |            |                          |  |   | (25,662,000 | ) |  |   | (25,662,000   | )
|                                                                                                           |  |               |  |                          |           |                  |   |             |                                            |   |             |                          |  |   |             |   |  |   |               |  
|Comprehensive income                                                                                       |  |              |  |                          |          |                  |   |            |                                            |   |            |                          |  |   |            |   |  |   | 38,498,000    |  
|Common stock issuances under employee stock plan                                                           |  | 1,435,657     |  |                          | 18,000    |                  |   | 7,941,000   |                                            |   |            |                          |  |   |            |   |  |   | 7,959,000     |  
|Tax benefit of employee stock plan                                                                         |  |              |  |                          |          |                  |   | 3,169,000   |                                            |   |            |                          |  |   |            |   |  |   | 3,169,000     |  
|Proceeds from subscription receivable                                                                      |  |              |  |                          |          |                  |   | 455,000     |                                            |   |            |                          |  |   |            |   |  |   | 455,000       |  
|                                                                                                           |  |               |  |                          |           |                  |   |             |                                            |   |             |                          |  |   |             |   |  |   |               |  
|BALANCE AT DECEMBER 31, 2005                                                                               |  | 148,455,864   |  |                          | 1,513,000 |                  |   | 157,796,000 |                                            |   | 274,200,000 |                          |  |   | 16,948,000  |   |  |   | 450,457,000   |  
|                                                                                                           |  |               |  |                          |           |                  |   |             |                                            |   |             |                          |  |   |             |   |  |   |               |  
|Net income                                                                                                 |  |              |  |                          |          |                  |   |            |                                            |   | 70,539,000  |                          |  |   |            |   |  |   | 70,539,000    |  
|Unrealized loss, net on hedging contracts                                                                  |  |              |  |                          |          |                  |   |            |                                            |   |            |                          |  |   | (539,000    | ) |  |   | (539,000      | )
|Realized loss, net on hedging contracts                                                                    |  |              |  |                          |          |                  |   |            |                                            |   |            |                          |  |   | 2,122,000   |   |  |   | 2,122,000     |  
|Unrealized loss, net on marketable securities                                                              |  |              |  |                          |          |                  |   |            |                                            |   |            |                          |  |   | (1,565,000  | ) |  |   | (1,565,000    | )
|Translation adjustment                                                                                     |  |              |  |                          |          |                  |   |            |                                            |   |            |                          |  |   | 24,473,000  |   |  |   | 24,473,000    |  
|                                                                                                           |  |               |  |                          |           |                  |   |             |                                            |   |             |                          |  |   |             |   |  |   |               |  
|Comprehensive income                                                                                       |  |              |  |                          |          |                  |   |            |                                            |   |            |                          |  |   |            |   |  |   | 95,030,000    |  
|Transition adjustment to pension liability upon adoption of new accounting standard, net of deferred taxes |  |              |  |                          |          |                  |   |            |                                            |   |            |                          |  |   | (204,000    | ) |  |   | (204,000      | )
|Stock issued for acquisition                                                                               |  | 125,000       |  |                          | 2,000     |                  |   | 1,846,000   |                                            |   |            |                          |  |   |            |   |  |   | 1,848,000     |  
|Common stock issuances under employee stock plan                                                           |  | 1,586,676     |  |                          | 20,000    |                  |   | 10,986,000  |                                            |   |            |                          |  |   |            |   |  |   | 11,006,000    |  
|Tax benefit of employee stock plan                                                                         |  |              |  |                          |          |                  |   | 7,385,000   |                                            |   |            |                          |  |   |            |   |  |   | 7,385,000     |  
|Share-based compensation                                                                                   |  |              |  |                          |          |                  |   | 326,000     |                                            |   |            |                          |  |   |            |   |  |   | 326,000       |  
|Proceeds from subscription receivable                                                                      |  |              |  |                          |          |                  |   | 317,000     |                                            |   |            |                          |  |   |            |   |  |   | 317,000       |  
|                                                                                                           |  |               |  |                          |           |                  |   |             |                                            |   |             |                          |  |   |             |   |  |   |               |  
|BALANCE AT DECEMBER 31, 2006                                                                               |  | 150,167,540   |  |                          | 1,535,000 |                  |   | 178,656,000 |                                            |   | 344,739,000 |                          |  |   | 41,235,000  |   |  |   | 566,165,000   |  
|                                                                                                           |  |               |  |                          |           |                  |   |             |                                            |   |             |                          |  |   |             |   |  |   |               |  
|Net income                                                                                                 |  |              |  |                          |          |                  |   |            |                                            |   | 50,122,000  |                          |  |   |            |   |  |   | 50,122,000    |  
|Unrealized gain, net on hedging contracts                                                                  |  |              |  |                          |          |                  |   |            |                                            |   |            |                          |  |   | 903,000     |   |  |   | 903,000       |  
|Realized loss, net on hedging contracts                                                                    |  |              |  |                          |          |                  |   |            |                                            |   |            |                          |  |   | 611,000     |   |  |   | 611,000       |  
|Unrealized loss, net on marketable securities                                                              |  |              |  |                          |          |                  |   |            |                                            |   |            |                          |  |   | (504,000    | ) |  |   | (504,000      | )
|Realized gain, net on marketable securities                                                                |  |              |  |                          |          |                  |   |            |                                            |   |            |                          |  |   | (1,000      | ) |  |   | (1,000        | )
|Unrealized gain, net on pension                                                                            |  |              |  |                          |          |                  |   |            |                                            |   |            |                          |  |   | 47,000      |   |  |   | 47,000        |  
|Translation adjustment                                                                                     |  |              |  |                          |          |                  |   |            |                                            |   |            |                          |  |   | 32,733,000  |   |  |   | 32,733,000    |  
|                                                                                                           |  |               |  |                          |           |                  |   |             |                                            |   |             |                          |  |   |             |   |  |   |               |  
|Comprehensive income                                                                                       |  |              |  |                          |          |                  |   |            |                                            |   |            |                          |  |   |            |   |  |   | 83,911,000    |  
|Cumulative effect due to the adoption of uncertain tax positions                                           |  |              |  |                          |          |                  |   |            |                                            |   | (6,082,000  | )                        |  |   |            |   |  |   | (6,082,000    | )
|Stock issued for the acquisition of eGene Inc.                                                             |  | 870,444       |  |                          | 12,000    |                  |   | 15,598,000  |                                            |   |            |                          |  |   |            |   |  |   | 15,610,000    |  
|Stock issued for the acquisition of Digene Corporation.                                                    |  | 39,618,164    |  |                          | 563,000   |                  |   | 635,388,000 |                                            |   |            |                          |  |   |            |   |  |   | 635,951,000   |  
|Equity awards issued in connection with the Digene acquisition                                             |  |              |  |                          |          |                  |   | 33,212,000  |                                            |   |            |                          |  |   |            |   |  |   | 33,212,000    |  
|Common stock issuances under employee stock plans                                                          |  | 4,678,928     |  |                          | 65,000    |                  |   | 42,217,000  |                                            |   |            |                          |  |   |            |   |  |   | 42,282,000    |  
|Tax benefit of employee stock plans                                                                        |  |              |  |                          |          |                  |   | 9,944,000   |                                            |   |            |                          |  |   |            |   |  |   | 9,944,000     |  
|Share-based compensation                                                                                   |  |              |  |                          |          |                  |   | 8,982,000   |                                            |   |            |                          |  |   |            |   |  |   | 8,982,000     |  
|Proceeds from subscription receivables                                                                     |  |              |  |                          |          |                  |   | 1,600,000   |                                            |   |            |                          |  |   |            |   |  |   | 1,600,000     |  
|                                                                                                           |  |               |  |                          |           |                  |   |             |                                            |   |             |                          |  |   |             |   |  |   |               |  
|BALANCE AT DECEMBER 31, 2007                                                                               |  | 195,335,076   |  | $                        | 2,175,000 |                  | $ | 925,597,000 |                                            | $ | 388,779,000 |                          |  | $ | 75,024,000  |   |  | $ | 1,391,575,000 |  
|                                                                                                           |  |               |  |                          |           |                  |   |             |                                            |   |             |                          |  |   |             |   |  |   |               |  

The accompanying notes are an integral part of these consolidated financial statements.



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##### Table of Contents

Q
IAGEN N.V. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CASH FLOWS



|                                                                                                                         |  |                          |              |   |      |   |              |      |  |   |             |  
|------------------------------------------------------------------------------------------------------------------------ |  | ------------------------ | ------------ | - | ---- | - | ------------ | ---- |  | - | ----------- | -
|                                                                                                                         |  | Years ended December 31, |             
|                                                                                                                         |  | 2007                     |              |   | 2006 |   |              | 2005 | 
|Cash Flows From Operating Activities:                                                                                    |  |                          |              |   |      |   |              |      |  |   |             |  
|Net income                                                                                                               |  | $                        | 50,122,000   |   |      | $ | 70,539,000   |      |  | $ | 62,225,000  |  
|Adjustments to reconcile net income to net cash provided by operating activities, net of effects of businesses acquired: |  |                          |              |   |      |   |              |      |  |   |             |  
|Depreciation and amortization                                                                                            |  |                          | 31,257,000   |   |      |   | 21,818,000   |      |  |   | 21,258,000  |  
|Acquisition related items:                                                                                               |  |                          |              |   |      |   |              |      |  |   |             |  
|Amortization of purchased intangible assets                                                                              |  |                          | 31,326,000   |   |      |   | 8,220,000    |      |  |   | 3,697,000   |  
|Purchased in-process research and development                                                                            |  |                          | 25,900,000   |   |      |   | 2,200,000    |      |  |   | 3,239,000   |  
|Non-cash acquisition and restructure costs                                                                               |  |                          | 2,839,000    |   |      |   | 4,745,000    |      |  |   | 2,114,000   |  
|Share-based compensation:                                                                                                |  |                          |              |   |      |   |              |      |  |   |             |  
|Share-based compensation expense                                                                                         |  |                          | 8,982,000    |   |      |   | 326,000      |      |  |   |            |  
|Tax effect from share-based compensation                                                                                 |  |                          | (9,944,000   | ) |      |   | (7,385,000   | )    |  |   | 3,169,000   |  
|Provision for losses on accounts receivable                                                                              |  |                          | 1,807,000    |   |      |   | 378,000      |      |  |   | 54,000      |  
|Deferred income taxes                                                                                                    |  |                          | (1,654,000   | ) |      |   | 5,210,000    |      |  |   | (2,202,000  | )
|Other                                                                                                                    |  |                          | 2,000        |   |      |   | 511,000      |      |  |   | 1,436,000   |  
|Net changes in operating assets and liabilities:                                                                         |  |                          |              |   |      |   |              |      |  |   |             |  
|(Increase) decrease in:                                                                                                  |  |                          |              |   |      |   |              |      |  |   |             |  
|Notes receivable                                                                                                         |  |                          | (572,000     | ) |      |   | 346,000      |      |  |   | (33,000     | )
|Accounts receivable                                                                                                      |  |                          | (20,806,000  | ) |      |   | (3,621,000   | )    |  |   | (131,000    | )
|Income taxes receivable                                                                                                  |  |                          | (7,598,000   | ) |      |   | (5,385,000   | )    |  |   | 1,897,000   |  
|Inventories                                                                                                              |  |                          | (8,738,000   | ) |      |   | (4,202,000   | )    |  |   | 3,764,000   |  
|Prepaid expenses and other                                                                                               |  |                          | (4,604,000   | ) |      |   | 1,238,000    |      |  |   | (9,778,000  | )
|Other assets                                                                                                             |  |                          | (887,000     | ) |      |   | (1,662,000   | )    |  |   | 934,000     |  
|Increase (decrease) in:                                                                                                  |  |                          |              |   |      |   |              |      |  |   |             |  
|Accounts payable                                                                                                         |  |                          | 956,000      |   |      |   | 2,720,000    |      |  |   | (4,711,000  | )
|Accrued and other liabilities                                                                                            |  |                          | (23,539,000  | ) |      |   | 1,523,000    |      |  |   | 422,000     |  
|Income taxes payable                                                                                                     |  |                          | 7,534,000    |   |      |   | 525,000      |      |  |   | 5,592,000   |  
|Other                                                                                                                    |  |                          | 2,428,000    |   |      |   | 3,435,000    |      |  |   | (1,709,000  | )
|                                                                                                                         |  |                          |              |   |      |   |              |      |  |   |             |  
|Net cash provided by operating activities                                                                                |  |                          | 84,811,000   |   |      |   | 101,479,000  |      |  |   | 91,237,000  |  
|                                                                                                                         |  |                          |              |   |      |   |              |      |  |   |             |  
|Cash Flows From Investing Activities:                                                                                    |  |                          |              |   |      |   |              |      |  |   |             |  
|Purchases of property, plant and equipment                                                                               |  |                          | (34,492,000  | ) |      |   | (28,995,000  | )    |  |   | (13,728,000 | )
|Proceeds from sale of equipment                                                                                          |  |                          | 715,000      |   |      |   | 1,256,000    |      |  |   | 1,738,000   |  
|Purchases of intangible assets                                                                                           |  |                          | (24,122,000  | ) |      |   | (6,358,000   | )    |  |   | (15,276,000 | )
|Purchases of investments                                                                                                 |  |                          | (747,000     | ) |      |   |             |      |  |   | (4,981,000  | )
|Collections of note receivable in connection with disposed synthetic DNA business unit                                   |  |                          | 5,106,000    |   |      |   | 652,000      |      |  |   | 757,000     |  
|Purchases of marketable securities                                                                                       |  |                          | (45,444,000  | ) |      |   | (56,606,000  | )    |  |   | (40,445,000 | )
|Sales of marketable securities                                                                                           |  |                          | 299,005,000  |   |      |   | 20,000,000   |      |  |   | 55,430,000  |  
|Investment in unconsolidated subsidiary                                                                                  |  |                          |             |   |      |   | (42,000      | )    |  |   |            |  
|Cash paid for acquisitions, net of cash acquired                                                                         |  |                          | (859,692,000 | ) |      |   | (95,379,000  | )    |  |   | (81,996,000 | )
|                                                                                                                         |  |                          |              |   |      |   |              |      |  |   |             |  
|Net cash used in investing activities                                                                                    |  |                          | (659,671,000 | ) |      |   | (165,472,000 | )    |  |   | (98,501,000 | )
|                                                                                                                         |  |                          |              |   |      |   |              |      |  |   |             |  

The accompanying notes are an integral part of these consolidated financial statements.



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##### Table of Contents

QIAGEN N.V. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CASH FLOWS

(CONTINUED)



|                                                                        |  |                          |              |   |      |   |             |      |  |   |             |  
|----------------------------------------------------------------------- |  | ------------------------ | ------------ | - | ---- | - | ----------- | ---- |  | - | ----------- | -
|                                                                        |  | Years ended December 31, |             
|                                                                        |  | 2007                     |              |   | 2006 |   |             | 2005 | 
|Cash Flows From Financing Activities:                                   |  |                          |              |   |      |   |             |      |  |   |             |  
|Proceeds from debt                                                      |  |                          | 780,018,000  |   |      |   | 295,022,000 |      |  |   | 6,299,000   |  
|Repayment of debt                                                       |  |                          | (337,811,000 | ) |      |   | (9,825,000  | )    |  |   | (10,705,000 | )
|Principal payments on capital leases                                    |  |                          | (1,979,000   | ) |      |   | (745,000    | )    |  |   | (1,053,000  | )
|Proceeds from subscription receivables                                  |  |                          | 1,600,000    |   |      |   | 317,000     |      |  |   | 455,000     |  
|Excess tax benefits from share based compensation                       |  |                          | 9,944,000    |   |      |   | 7,385,000   |      |  |   |            |  
|Issuance of Common Shares under employee stock plans                    |  |                          | 42,282,000   |   |      |   | 11,006,000  |      |  |   | 7,959,000   |  
|                                                                        |  |                          |              |   |      |   |             |      |  |   |             |  
|Net cash provided by financing activities                               |  |                          | 494,054,000  |   |      |   | 303,160,000 |      |  |   | 2,955,000   |  
|                                                                        |  |                          |              |   |      |   |             |      |  |   |             |  
|Effect of exchange rate changes on cash and cash equivalents            |  |                          | (2,231,000   | ) |      |   | (510,000    | )    |  |   | (366,000    | )
|Net increase (decrease) in cash and cash equivalents                    |  |                          | (83,037,000  | ) |      |   | 238,657,000 |      |  |   | (4,675,000  | )
|Cash and cash equivalents, beginning of year                            |  |                          | 430,357,000  |   |      |   | 191,700,000 |      |  |   | 196,375,000 |  
|                                                                        |  |                          |              |   |      |   |             |      |  |   |             |  
|Cash and cash equivalents, end of year                                  |  | $                        | 347,320,000  |   |      | $ | 430,357,000 |      |  | $ | 191,700,000 |  
|                                                                        |  |                          |              |   |      |   |             |      |  |   |             |  
|Supplemental Cash Flow Disclosures:                                     |  |                          |              |   |      |   |             |      |  |   |             |  
|Cash paid for interest                                                  |  | $                        | 30,531,000   |   |      | $ | 24,289,000  |      |  | $ | 5,238,000   |  
|Cash paid for income taxes                                              |  | $                        | 14,234,000   |   |      | $ | 36,384,000  |      |  | $ | 21,582,000  |  
|Supplemental Disclosure of Non-cash Investing and Financing Activities: |  |                          |              |   |      |   |             |      |  |   |             |  
|Equipment purchased through capital lease                               |  | $                        | 59,000       |   |      | $ | 175,000     |      |  | $ |            |  
|Issuance of common stock in connection with acquisitions                |  | $                        | 651,561,000  |   |      | $ | 1,847,000   |      |  | $ |            |  

The accompanying notes are an integral part of these consolidated financial statements.



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##### Table of Contents

Q
IAGEN N.V. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

DECEMBER 31, 2007



|1. | Description of Business
|-- | -----------------------

QIAGEN N.V., a Netherlands
holding company, and subsidiaries (the Company) is a leading provider of innovative technologies and products for preanalytical sample preparation and linked molecular assay solutions. The Company has developed a comprehensive portfolio of more than
500 proprietary, consumable products and automated solutions for sample collection, and nucleic acid and protein handling, separation, and purification as well as open and target specific assays. The Company also supplies diagnostic kits, tests, and
assays for human and veterinary molecular diagnostics. Products are sold to academic research markets, to leading pharmaceutical and biotechnology companies, to applied testing customers (such as in forensics, veterinary, biodefense and industrial
applications) as well as to molecular diagnostics laboratories. In addition, the Company sells and/or licenses technologies to others. The Companys products are subject to rapid technological change. Because of these technological changes, the
Company needs to continuously expend resources toward research and development. Products are sold through a dedicated sales force and a global network of distributors in more than 40 countries.

During 2007, the Company acquired eGene Inc. and Digene Corporation. These acquisitions have been accounted for using the purchase method of accounting,
and the acquired companies results have been included in the accompanying financial statements from their respective dates of acquisition.



|2. | Summary of Significant Accounting Policies
|-- | ------------------------------------------

Principles of Consolidation

The accompanying consolidated financial statements were prepared in conformity with U.S.
generally accepted accounting principles (GAAP) and include the accounts of the Company and its wholly owned subsidiaries other than those that are considered variable interest entities for which the Company is not the primary beneficiary. All
significant intercompany accounts and transactions have been eliminated. All amounts are presented in U.S. dollars, unless otherwise indicated. Investments in companies where the Company exercises significant influence over the operations, and which
the Company has determined that it is not the primary beneficiary, are accounted for using the equity method. All other investments are accounted for under the cost method.

Use of Estimates

The preparation of
financial statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the reported amounts of assets, liabilities and disclosure of contingencies at
the date of the financial statements as well as the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.

Concentrations of Risk

The Company
buys materials for products from many suppliers, and is not dependent on any one supplier or group of suppliers for the business as a whole. However, key components of certain products, including certain instrumentation components and chemicals, are
available only from a single source. If supplies from these vendors were delayed or interrupted for any reason, the Company may not be able to obtain these materials timely or in sufficient quantities in order to produce certain products and sales
levels could be negatively affected. Additionally, the Companys customers include researchers at pharmaceutical and biotechnology companies, academic institutions and government and private laboratories. Fluctuations in the research and
development budgets of these researchers and their organizations for applications in which the Companys products are used could have a significant effect on the demand for our products.



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##### Table of Contents

QIAGEN N.V. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



Fair Value of Financial Instruments

The carrying value of the Companys cash and cash equivalents, notes receivable, accounts receivable, accounts payable and accrued liabilities
approximate their fair values because of the short maturities of those instruments. The carrying value of the Companys variable rate debt and capital leases approximate their fair values because of the short maturities and/or interest rates
which are comparable to those available to the Company on similar terms. The fair values of the notes payable to QIAGEN Finance and Euro Finance, further discussed in Note 14, were estimated by using available over-the-counter market
information on the convertible bonds which were issued by QIAGEN Finance and Euro Finance, the values of which correlate to the fair value of the loan arrangements the Company has with QIAGEN Finance and Euro Finance which includes the notes
payable, the guarantee and the warrant agreement (further discussed in Note 10).

Cash and Cash Equivalents, Marketable Securities and
Investments

Cash and Cash Equivalents:    Cash and cash equivalents consist of cash on deposit in banks and
other cash invested temporarily in various instruments that are short-term and highly liquid, and having an original maturity of less than 90 days at the date of purchase.

Marketable Securities and Investments:    The Company accounts for marketable securities in accordance with Statement of
Financial Accounting Standard (SFAS) No. 115, Accounting for Certain Investments in Debt and Equity Securities. All such investments are classified available for sale and stated at fair value, interest income is accrued
when earned, and changes in market values are reflected as unrealized gains and losses, calculated on the specific identification method, as a component of accumulated other comprehensive income.

The Company also has investments in non-marketable securities issued by privately held companies. These investments are included in other long-term
assets in the accompanying consolidated balance sheets and are accounted for using the equity or cost method of accounting.

Marketable
securities and investments are evaluated at least quarterly, or sooner if impairment indicators are noted, to determine if declines in value are other-than-temporary. In making that determination, the Company considers all available evidence
relating to the realizable value of a security. This evidence includes, but is not limited to, the following:



| |  |  | adverse financial conditions of a specific issuer, segment, industry, region or other variables;
| | - |  | ------------------------------------------------------------------------------------------------



| |  |  | the length of time and the extent to which the fair value has been less than cost; and
| | - |  | --------------------------------------------------------------------------------------



| |  |  | the financial condition and near-term prospects of the issuer.
| | - |  | --------------------------------------------------------------

Temporary declines in value of investments classified as available-for-sale are recorded as an unrealized loss and netted with unrealized gains and reported as a separate component of shareholders equity. A
decline in fair value below amortized cost that is judged to be other-than-temporary is accounted for as a realized loss and the write down is included in the consolidated statements of income. Realized gains and losses on the sale of investments
are determined on a specific identification basis.

Accounts Receivable

The Companys accounts receivable are unsecured and the Company is at risk to the extent such amounts become uncollectible. The Company continually
monitors accounts receivable balances, and provides for an allowance for doubtful accounts at the time collection becomes questionable based on payment history or age of the receivable. For the years ended December 31, 2007, 2006 and 2005,
write-offs of accounts receivable totaled



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##### Table of Contents

QIAGEN N.V. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



$1.1 million, $333,000 and $620,000 while provisions for doubtful accounts which were charged to expense totaled $1.8 million, $378,000 and $54,000,
respectively. For all years presented, no single customer represented more than ten percent of accounts receivable or consolidated net sales.

Inventories

Inventories are stated at the lower of cost, determined on a first-in, first-out basis, or market and include
material, capitalized labor and overhead costs. Inventories consist of the following as of December 31, 2007 and 2006:



|                  |  |   |            |  |   |           
|----------------- |  | - | ---------- |  | - | ----------
|Raw materials     |  | $ | 26,855,000 |  | $ | 22,376,000
|Work in process   |  |   | 35,894,000 |  |   | 23,229,000
|Finished goods    |  |   | 25,597,000 |  |   | 18,480,000
|                  |  |   |            |  |   |           
|Total inventories |  | $ | 88,346,000 |  | $ | 64,085,000
|                  |  |   |            |  |   |           

Property, Plant and Equipment

Property, plant and equipment, including equipment acquired under capital lease obligations, are stated at cost. Depreciation is computed using the
straight-line method over the estimated useful lives of the assets (one to 40 years). Amortization of leasehold improvements is computed on a straight-line basis over the lesser of the remaining life of the lease or the estimated useful life. The
Company has a policy of capitalizing expenditures that materially increase assets useful lives and charging ordinary maintenance and repairs to operations as incurred. When property or equipment is disposed of, the cost and related accumulated
depreciation and amortization are removed from the accounts and any gain or loss is included in other miscellaneous income (expense).

Acquired Intangibles and Goodwill

Acquired intangibles are carried at cost less accumulated amortization and consist of
licenses to technology held by third parties and other intangible assets acquired by the Company. Amortization is computed over the estimated useful life of the underlying patents, which has historically ranged from one to twenty years.
SFAS No. 142 Goodwill and Other Intangible Assets (SFAS No. 142) requires purchased intangible assets other than goodwill to be amortized over their estimated useful lives unless these lives are determined to be indefinite. In
accordance with SFAS No. 142, intangibles are assessed for recoverability considering the contract life and the period of time over which the intangible will contribute to future cash flow. The unamortized cost of intangible assets is evaluated
periodically and adjusted, if necessary, if events and circumstances indicate that a permanent decline in value below the carrying amount has occurred.

Amortization expense related to developed technology and patent and license rights which have been acquired in a business combination is included in cost of sales. Amortization of trademarks, customer base and
non-compete agreements which have been acquired in a business combination is recorded in operating expense under the caption acquisition related intangible amortization. Amortization expenses of intangible assets not acquired in a
business combination are recorded within either the cost of sales, research and development or sales and marketing line items based on the use of the asset.

Goodwill represents the difference between the purchase price and the estimated fair value of the
net assets acquired arising from business combinations. In accordance with SFAS No. 142, goodwill is subject to impairment tests annually or earlier if indicators of potential impairment exist, using a fair-value-based approach. The Company has
elected to perform its annual test for indications of impairment as of October 1stof each year. For the years ended December 31, 2007,
2006 and 2005, goodwill has not been impaired.



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##### Table of Contents

QIAGEN N.V. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



Long-Lived Assets

The Company reviews its long-lived assets for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset or a
group of assets may not be recoverable. The Company considers a history of operating losses or a change in expected sales levels to be indicators of potential impairment. Assets are grouped and evaluated for impairment at the lowest level for which
there are identified cash flows that are largely independent of the cash flows of other groups of assets. The Company deems an asset to be impaired if a forecast of undiscounted projected future operating cash flows directly related to the asset,
including disposal value, if any, is less than its carrying amount. If an asset is determined to be impaired, the loss is measured as the amount by which the carrying amount of the asset exceeds fair value. The Company generally measures fair value
by discounting projected future cash flows. Considerable judgment is necessary to estimate discounted future cash flows. Accordingly, actual results could differ from such estimates.

Revenue Recognition

The
Companys revenues are reported net of sales and value added taxes, discounts and sales allowances, and are derived primarily from the sale of consumable and instrumentation products, and to a much lesser extent, from the sale of services and
technology. The Company recognizes revenue in accordance with the Securities and Exchange Commissions Staff Accounting Bulletin No. 104, Revenue Recognition in Financial Statements (SAB 104). SAB 104 requires that four basic
criteria must be met before revenue can be recognized: (1) persuasive evidence of an arrangement exists; (2) delivery has occurred or services have been rendered; (3) the fee is fixed and determinable; and (4) collectibility
is reasonably assured.

Consumable Products:Revenue from consumable product sales is generally recognized
upon transfer of title consistent with the shipping terms, and when all of the criteria of SAB 104 are achieved. Per the Companys usual shipping terms, title and risk of loss pass to the customer upon delivery of product to the shipping
location. The Company maintains a small amount of consignment inventory at certain customer locations. Revenues for the consumable products which are consigned in this manner are recognized upon consumption. The Company generally allows returns of
consumable products if the product is returned in a timely manner and in good condition. Allowances for returns are provided for based upon the historical pattern of returns and Managements evaluation of specific factors that impact the risk
of returns.

Instrumentation:Revenue from instrumentation includes the instrumentation equipment,
installation, training and other instrumentation services, such as extended warranty services or product maintenance contracts. Revenue from instrumentation equipment is generally recognized when title passes to the customer, upon either shipment or
written customer acceptance after satisfying any installation and training requirements. For instrumentation equipment sales that contain other obligations, such as providing consumables, advanced training, extended warranty services or preventative
maintenance contracts, revenue is allocated based on the relative fair values of the individual components. The price charged when the element is sold separately generally determines its fair value. Revenues for extended warranty services or product
maintenance contracts are deferred and recognized on a straight-line basis over the contract period. The Company generally recognizes service revenues on a completed contract basis.

Other:    Other revenue includes license fees, royalties and milestone payments. License fees from research collaborations
include payments for technology transfer and access rights. Non-refundable, up-front payments received in connection with collaborative research and development agreements are generally deferred and recognized on a straight-line basis over the
contract period during which there is any continuing obligation. Payments for milestones, generally based on the achievement of substantive and at-risk performance criteria, are recognized in full at such time as the specified milestone has been
achieved according to the terms of the



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##### Table of Contents

QIAGEN N.V. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



agreement. Royalties from licensees are based on reported sales of licensed products and revenues are calculated based on contract terms when reported sales
are reliably measurable and collectibility is reasonably assured.

Research and Development

Research and product development costs are expensed as incurred. Research and development expenses consist primarily of salaries and related expenses,
facility costs and amounts paid to contract research organizations, and laboratories for the provision of services and materials. Purchased in-process research and development is expensed if technological feasibility has not been demonstrated and
there is no alternative use for the in-process technology.

Shipping and Handling Income and Costs

Shipping and handling costs charged to customers are recorded as revenue in the period that the related product sale revenue is recorded. Associated costs
of shipping and handling are included in sales and marketing expenses. For the years ended December 31, 2007, 2006 and 2005, shipping and handling costs totaled $17.1 million, $8.8 million and $8.5 million, respectively.

Advertising Costs

The costs of
advertising are expensed as incurred according to Statement of Position 93-7, Reporting on Advertising Costs. Advertising costs for the years ended December 31, 2007, 2006 and 2005 were $5.0 million, $2.6 million and $1.9 million,
respectively.

Acquisition and Integration Costs

The Company incurs indirect acquisition and integration costs in connection with its purchase business combinations. These costs represent incremental costs that the Company believes would not have been incurred
absent the business combinations. Major components of these costs include payroll and related costs related to employees remaining with the Company on a transitional basis; public relations, advertising and media costs for re-branding of the
combined organization; and, consulting and related fees incurred to integrate or restructure the acquired operations. These costs are expensed as incurred.

Warranty

The Company warrants its products against defects in materials and workmanship generally
for a period of one year. A provision for estimated future warranty costs is recorded at the time product revenue is recognized. The Companys product warranty obligations are included in accrued and other liabilities in the accompanying
consolidated balance sheets. The changes in the carrying amount of warranty obligations are as follows:



|                                                   |  |   |           |  
|-------------------------------------------------- |  | - | --------- | -
|BALANCE AT DECEMBER 31, 2005                       |  | $ | 1,332,000 |  
|Provision charged to income                        |  |   | 1,071,000 |  
|Usage                                              |  |   | (823,000  | )
|Adjustments to previously provided warranties, net |  |   | (223,000  | )
|Currency translation                               |  |   | 56,000    |  
|                                                   |  |   |           |  
|BALANCE AT DECEMBER 31, 2006                       |  |   | 1,413,000 |  
|Provision charged to income                        |  |   | 1,078,000 |  
|Usage                                              |  |   | (775,000  | )
|Adjustments to previously provided warranties, net |  |   | (155,000  | )
|Currency translation                               |  |   | 60,000    |  
|                                                   |  |   |           |  
|BALANCE AT DECEMBER 31, 2007                       |  | $ | 1,621,000 |  
|                                                   |  |   |           |  



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##### Table of Contents

QIAGEN N.V. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



Income Taxes

The Company accounts for income taxes in accordance with SFAS No. 109 Accounting for Income Taxes. The deferred tax assets and/or liabilities are determined by multiplying the differences between the
financial reporting and tax reporting bases for assets and liabilities by the enacted tax rates expected to be in effect when such differences are recovered or settled. The effect on deferred taxes of a change in tax rates is recognized in income in
the period that includes the enactment date.

In June 2006, the Financial Accounting Standards Board (FASB) issued Interpretation
No. 48 (FIN 48), Accounting for Uncertainty in Income Taxes, an interpretation of SFAS 109, Accounting for Income Taxes. FIN 48 clarifies the accounting for uncertain tax positions. FIN 48 prescribes a comprehensive model for
how companies should recognize, measure, present and disclose in their financial statements uncertain tax positions taken or expected to be taken on a tax return. Under FIN 48, tax benefits shall initially be recognized in the financial statements
when it is more likely than not the position will be sustained upon examination by the tax authorities. Such tax positions shall initially and subsequently be measured as the largest amount of tax benefit that is greater than 50% likely of being
realized upon ultimate settlement with the tax authority, assuming full knowledge of the position and all relevant facts. The Company adopted this provision beginning January 1, 2007. The net impact due to the adoption of FIN 48 was a $6.1
million decrease to retained earnings.

Foreign Currency Translation

The Companys functional currency is the U.S. dollar and subsidiaries functional currencies are the local currency of the respective countries
in which they are headquartered. All amounts in the financial statements of entities whose functional currency is not the U.S. dollar are translated into U.S. dollar equivalents at exchange rates as follows: (1) assets and liabilities at
period-end rates, (2) income statement accounts at average exchange rates for the period, and (3) components of shareholders equity at historical rates. Translation gains or losses are recorded in shareholders equity, and
transaction gains and losses are reflected in net income. Realized gains or losses on the value of financial contracts entered into to hedge the exchange rate exposure of receivables and payables are also included in net income. The net gain (loss)
on foreign currency transactions in 2007, 2006 and 2005 was $2.0 million, ($660,000), and ($157,000), respectively, and is included in other income (expense), net.

Derivative Instruments

The Company enters into derivative financial instrument contracts only for
hedging purposes and accounts for them in accordance with SFAS No. 133 Accounting for Derivative Instruments and Hedging Activities, and its amendments. The purpose of the derivative instruments is to minimize the variability of
cash flows associated with the anticipated transactions being hedged. As changes in foreign currency rates impact the value of anticipated transactions, the fair value of the forward contracts also changes, offsetting foreign currency rate
fluctuations. Derivative instruments are recorded on the balance sheet at fair value. Changes in fair value of derivatives are recorded in current earnings or other comprehensive income, depending on whether a derivative is designated as part of a
hedge transaction and, if so, depending on the type of hedge transaction.

Stock-Based Compensation

Prior to January 1, 2006, the Company accounted for its equity-based compensation plans under the recognition and measurement provisions of
Accounting Principles Board Opinion No. 25, Accounting for Stock Issued to Employees (Opinion 25), and related interpretations, as permitted by FASB Statement No. 123, Accounting for Stock-Based Compensation (SFAS
No. 123). Effective January 1, 2006, the Company adopted the provisions of FASB Statement No. 123 (revised 2004), Share-Based Payment, (SFAS No. 123(R)) and



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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



SEC Staff Accounting Bulletin No. 107, Share-Based Payment, (SAB 107), using the modified prospective transition method. Under the modified
prospective transition method, compensation cost recognized in 2006 includes compensation cost for all share-based payments granted prior to but were not vested as of January 1, 2006, based on the estimated grant date fair
value. Compensation cost for all share-based payments granted subsequent to January 1, 2006 are recorded based on the grant date fair value estimated in accordance with the provisions of SFAS No. 123(R). Results for prior periods have
not been restated.

Stock Options:The Company utilizes the Black-Scholes-Merton valuation model for
estimating the fair value of its stock options granted. Option valuation models, including Black-Scholes-Merton, require the input of highly subjective assumptions, and changes in the assumptions used can materially affect the grant date fair value
of an award. These assumptions include the risk-free rate of interest, expected dividend yield, expected volatility, and the expected life of the award.

Risk-Free Interest RateThis is the average U.S. Treasury rate (having a term that most closely resembles the expected life of the option) at the date the option was granted.

Dividend YieldThe Company has never declared or paid dividends on its common stock and does not anticipate declaring or paying any dividends
in the foreseeable future.

Expected VolatilityVolatility is a measure of the amount by which a financial variable such as a
share price has fluctuated (historical volatility) or is expected to fluctuate (expected volatility) during a period. The Company uses a combination of the historical volatility of its stock price and the implied volatility of market-traded options
of the Companys stock to estimate the expected volatility assumption input to the Black-Scholes-Merton model in accordance with SFAS No. 123(R) and SAB 107. In prior periods, the Company relied solely on the historical volatility of its
stock price for its volatility assumption input to the Black-Scholes model. The Companys decision to use a combination of historical and implied volatility is based upon the availability of actively traded options of its stock and its
assessment that such a combination is more representative of future expected stock price trends.

Expected Life of the
OptionThis is the period of time that the options granted are expected to remain outstanding. The Company estimated the expected life by considering the historical exercise behavior. The Company uses an even exercise methodology, which
assumes that all vested, outstanding options are exercised uniformly over the balance of their contractual life.

Forfeiture
RateThis is the estimated percentage of options granted that are expected to be forfeited or cancelled on an annual basis before becoming fully vested. The Company estimated the forfeiture rate based on historical forfeiture experience.
For the years ended December 31, 2007 and 2006, the estimated forfeiture rate was 5% and 9%, respectively.

Restricted Stock
Units:Restricted stock units represent rights to receive Common Shares at a future date. The fair market value is determined based on the number of restricted stock units granted and the market value of the Companys
shares on the grant date. The fair market value at the time of the grant is amortized to expense on a straight-line basis over the period of vesting. Pre-vesting forfeitures were estimated to be approximately 5.1%.

Reclassifications

Certain
reclassifications of prior year amounts have been made to conform to the current year presentation. Amounts reported in prior years as acquisition related intangible amortization within operating expenses are now included as a separate component of
cost of sales.



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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



Recent Authoritative Pronouncements

In September 2006, the FASB issued SFAS No. 157, Fair Value Measurements. SFAS No. 157 provides guidance for using
fair value to measure assets and liabilities and only applies when other standards require or permit the fair value measurement of assets and liabilities. It does not expand the use of fair value measurement. SFAS No. 157 is effective for
fiscal years beginning after November 15, 2007. In February 2008, the FASB deferred the effective date of SFAS No. 157 for one year for non financial assets and liabilities that are recognized or disclosed at fair value in the financial
statements on a nonrecurring basis. The Company has not yet determined the effect, if any, of this standard on the future consolidated financial statements.

In February 2007 the FASB issued SFAS No. 159, The Fair Value Option for Financial Assets and Financial LiabilitiesIncluding an amendment of FASB Statement No. 115, or SFAS 159.
SFAS 159 allows companies to elect to measure certain assets and liabilities at fair value and is effective for fiscal years beginning after November 15, 2007. This standard is not expected to have a material impact on the Companys
future consolidated financial statements.

In June 2007 the FASB ratified EITF No. 07-3, or EITF 07-3, Accounting for
Nonrefundable Advance Payments for Goods or Services to Be Used in Future Research and Development Activities. EITF 07-3 requires non-refundable advance payments for goods and services to be used in future research and development
activities to be recorded as an asset and the payments to be expensed when the research and development activities are performed. EITF 07-3 is effective for fiscal years beginning after December 15, 2007. This standard is not expected to
have a material impact on the Companys future consolidated financial statements.

In December 2007, the FASB issued
SFAS No. 141R, Business Combinations, or SFAS 141R. SFAS 141R establishes principles and requirements for how the acquirer of a business recognizes and measures in its financial statements the identifiable assets
acquired, the liabilities assumed, and any noncontrolling interest in the acquiree. The statement also provides guidance for recognizing and measuring the goodwill acquired in the business combination and determines what information to disclose to
enable users of the financial statement to evaluate the nature and financial effects of the business combination. SFAS 141R is effective for financial statements issued for fiscal years beginning after December 15, 2008. Accordingly, any
business combinations the Company engages in will be recorded and disclosed following existing GAAP until January 1, 2009. The Company expects SFAS No. 141R will have an impact on the consolidated financial statements when effective,
but the nature and magnitude of the specific effects will depend upon the nature, terms and size of the acquisitions consummated after the effective date. The Company is still assessing the impact of this standard on the future consolidated
financial statements.

In December 2007, the FASB issued SFAS No. 160, Noncontrolling Interests in Consolidated Financial
Statements, an amendment of ARB No. 51, which establishes new standards governing the accounting for and reporting of noncontrolling interests (NCIs) in partially owned consolidated subsidiaries and the loss of control of
subsidiaries. Certain provisions of this standard indicate, among other things, that NCIs (previously referred to as minority interests) be treated as a separate component of equity, not as a liability; that increases and decreases in the
parents ownership interest that leave control intact be treated as equity transactions, rather than as step acquisitions or dilution gains or losses; and that losses of a partially owned consolidated subsidiary be allocated to the NCI even
when such allocation might result in a deficit balance. This standard also requires changes to certain presentation and disclosure requirements. SFAS No. 160 is effective for the Company beginning January 1, 2009. The provisions of the
standard are to be applied to all NCIs prospectively, except for the presentation and disclosure requirements, which are to be applied retrospectively to all periods presented. The Company is currently evaluating the future impacts and disclosures
of this standard.



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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



In December 2007, the FASB ratified the Emerging Issues Task Force consensus on EITF Issue
No. 07-1, Accounting for Collaborative Arrangements that discusses how parties to a collaborative arrangement (which does not establish a legal entity within such arrangement) should account for various activities. The consensus
indicates that costs incurred and revenues generated from transactions with third parties (i.e., parties outside of the collaborative arrangement) should be reported by the collaborators on the respective line items in their income statements
pursuant to EITF Issue No. 99-19, Reporting Revenue Gross as a Principal Versus Net as an Agent. Additionally, the consensus provides that income statement characterization of payments between the participants in a
collaborative arrangement should be based upon existing authoritative pronouncements; analogy to such pronouncements if not within their scope; or a reasonable, rational, and consistently applied accounting policy election. EITF Issue No. 07-1
is effective for the Company beginning January 1, 2009 and is to be applied retrospectively to all periods presented for collaborative arrangements existing as of the date of adoption. The Company is currently evaluating the impacts and
disclosures of this standard.



|3. | Net Income per Common Share
|-- | ---------------------------

The following schedule
summarizes the information used to compute earnings per Common Share:



|                                                                                                                   |  |                          |  |             |  |            
|------------------------------------------------------------------------------------------------------------------ |  | ------------------------ |  | ----------- |  | -----------
|                                                                                                                   |  | Years ended December 31,
|                                                                                                                   |  | 2007                     |  | 2006        |  | 2005       
|Weighted average number of Common Shares used to compute basic net income per Common Share                         |  | 168,457,000              |  | 149,504,000 |  | 147,837,000
|Dilutive effect of stock options and restrictive stock units                                                       |  | 3,716,000                |  | 2,635,000   |  | 2,269,000  
|Dilutive effect of outstanding warrant shares used to compute diluted net income per Common Share                  |  | 3,786,000                |  | 1,378,000   |  | 66,000     
|                                                                                                                   |  |                          |  |             |  |            
|                                                                                                                   |  | 175,959,000              |  | 153,517,000 |  | 150,172,000
|                                                                                                                   |  |                          |  |             |  |            
|Outstanding stock options and restrictive stock units having no dilutive effect, not included in above calculation |  | 2,207,000                |  | 3,309,000   |  | 5,235,000  
|                                                                                                                   |  |                          |  |             |  |            
|Outstanding warrants having no dilutive effect, not included in above calculation                                  |  | 23,166,000               |  | 22,071,000  |  | 11,796,000 
|                                                                                                                   |  |                          |  |             |  |            



|4. | Acquisitions
|-- | ------------

On July 9, 2007, the Company
completed the acquisition of eGene, Inc. pursuant to which eGene, Inc. (eGene) became a wholly-owned subsidiary of QIAGEN North American Holdings, Inc. eGene is an early-stage company located in Irvine, California that has developed and is
commercializing a patented sample separation and analysis technology based on capillary electrophoresis. Under the terms of the agreement, eGene shareholders received $0.65 in cash and 0.0416 Common Shares of QIAGEN stock per share of eGene common
stock. The aggregate purchase consideration amounts to approximately $30.3 million, consisting of approximately $14.6 million in cash, including direct acquisition costs of approximately $599,000 and net of $202,000 cash acquired, and 873,911 QIAGEN
Common Shares valued at $15.7 million. As of December 31, 2007, 3,467 shares of the purchase price, valued at approximately $62,000, were remaining to be issued.

On June 3, 2007, the Company and Digene Corporation announced a merger agreement, under which QIAGEN would acquire Digene Corporation (Digene) in a transaction consisting of 55% cash and 45% QIAGEN Common Shares
and would combine the Companys leading portfolio of sample and assay technologies,



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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



including a broad panel of molecular diagnostic tests, with Digenes leadership in human Papillomavirus (HPV)-targeted molecular diagnostic testing,
creating a global leader in molecular diagnostics outside blood screening and viral load monitoring. In July 2007, the Company successfully completed its exchange offer and, through a short-form merger under Delaware law, the Company acquired
all other Digene shares. Following the completion of the merger, Digene became a wholly owned subsidiary of QIAGENs subsidiary QIAGEN North American Holdings, Inc. and was subsequently renamed QIAGEN Gaithersburg, Inc.

Net of $17.5 million in cash acquired, the aggregate purchase consideration amounted to approximately $1.5 billion and consisted of approximately $856.0
million in cash, including direct acquisition costs of approximately $19.4 million, 39.6 million QIAGEN Common Shares valued at $636.0 million and 5.0 million of exchanged equity awards valued at $33.2 million. The estimated fair value of
Common Shares was determined using an average price of $16.05 per share, which was determined by averaging the closing price of our common stock from two trading days before to two trading days after the announcement date in accordance with EITF
Issue No. 99-12, Determination of the Measurement Date for the Market Price of Acquirer Securities Issued in a Purchase Business Combination. The fair value of stock options assumed was calculated using a Black-Scholes-Merton
valuation model with the following assumptions: expected life ranging from 0.73 to 1.46 years, risk-free interest rate ranging from 4.67% to 4.75%, expected volatility ranging from 26.5% to 26.9% and no dividend yield. The Companys
acquisitions have historically been made at prices above the fair value of the acquired assets, resulting in goodwill, due to expectations of synergies of combining the businesses. These synergies include use of the Companys existing
infrastructure such as sales force, distribution channels and customer relations to expand sales of the acquired businesses products; use of the infrastructure of the acquired businesses to cost effectively expand sales of Company products;
and elimination of duplicative facilities, functions and staffing.

These acquisitions have been accounted for using the purchase method of
accounting, and the acquired companies results have been included in the accompanying statements of operations from their respective dates of acquisition. The allocation of the purchase price is preliminary and is based upon information that
was available to management at the time the financial statements were prepared. Accordingly, the allocation may change. The Company has gathered no information that indicates the final purchase price allocations will differ materially from the
preliminary estimates other than for the final determination of deferred tax assets acquired with the acquisition of Digene and the determinations of the final accrual amounts for the restructuring in connection with the acquisition of Digene.



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QIAGEN N.V. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



2007 Acquisitions

The allocation of the purchase price and estimated transaction costs as of December 31, 2007 is preliminary and based on information that was
available to management at the time the financial statements were prepared. The preliminary allocation is as follows:



|                                                                                |  |                  |            |   |                   |   |               |       |  |   |               |  
|------------------------------------------------------------------------------- |  | ---------------- | ---------- | - | ----------------- | - | ------------- | ----- |  | - | ------------- | -
|                                                                                |  | eGeneAcquisition |            |   | DigeneAcquisition |   |               | Total | 
|Purchase Price:                                                                 |  |                  |            |   |                   |   |               |       |  |   |               |  
|Stock issued or to be issued                                                    |  | $                | 15,672,000 |   |                   | $ | 635,951,000   |       |  | $ | 651,623,000   |  
|Cash, including direct costs                                                    |  |                  | 14,812,000 |   |                   |   | 856,033,000   |       |  |   | 870,845,000   |  
|Exchanged equity awards                                                         |  |                  |           |   |                   |   | 33,211,000    |       |  |   | 33,211,000    |  
|Cash acquired                                                                   |  |                  | (202,000   | ) |                   |   | (17,534,000   | )     |  |   | (17,736,000   | )
|                                                                                |  |                  |            |   |                   |   |               |       |  |   |               |  
|                                                                                |  | $                | 30,282,000 |   |                   | $ | 1,507,661,000 |       |  | $ | 1,537,943,000 |  
|                                                                                |  |                  |            |   |                   |   |               |       |  |   |               |  
|Preliminary Allocation:                                                         |  |                  |            |   |                   |   |               |       |  |   |               |  
|Working capital                                                                 |  | $                | (2,973,000 | ) |                   | $ | 198,777,000   |       |  | $ | 195,804,000   |  
|Fixed and other long-term assets                                                |  |                  | 234,000    |   |                   |   | 40,341,000    |       |  |   | 40,575,000    |  
|Acquired intangible assets                                                      |  |                  | 13,100,000 |   |                   |   | 504,000,000   |       |  |   | 517,100,000   |  
|Goodwill                                                                        |  |                  | 24,306,000 |   |                   |   | 925,730,000   |       |  |   | 950,036,000   |  
|Purchased in-process research and development expense                           |  |                  | 900,000    |   |                   |   | 25,000,000    |       |  |   | 25,900,000    |  
|Deferred tax liability on fair value of identifiable intangible assets acquired |  |                  | (4,569,000 | ) |                   |   | (155,480,000  | )     |  |   | (160,049,000  | )
|Liabilities assumed                                                             |  |                  | (716,000   | ) |                   |   | (30,707,000   | )     |  |   | (31,423,000   | )
|                                                                                |  |                  |            |   |                   |   |               |       |  |   |               |  
|                                                                                |  | $                | 30,282,000 |   |                   | $ | 1,507,661,000 |       |  | $ | 1,537,943,000 |  
|                                                                                |  |                  |            |   |                   |   |               |       |  |   |               |  

Identifiable Intangible Assets

Identifiable intangible assets acquired in 2007 are as follows:



|                                |  |                  |            |                   |   |             |  |   |            
|------------------------------- |  | ---------------- | ---------- | ----------------- | - | ----------- |  | - | -----------
|                                |  | eGeneAcquisition |            | DigeneAcquisition |   | Total      
|Customer relationships          |  | $                | 700,000    |                   | $ | 93,000,000  |  | $ | 93,700,000 
|Product technology and know how |  |                  | 12,400,000 |                   |   | 252,000,000 |  |   | 264,400,000
|Patented technology             |  |                  |           |                   |   | 138,000,000 |  |   | 138,000,000
|Tradename                       |  |                  |           |                   |   | 21,000,000  |  |   | 21,000,000 
|                                |  |                  |            |                   |   |             |  |   |            
|                                |  | $                | 13,100,000 |                   | $ | 504,000,000 |  | $ | 517,100,000
|                                |  |                  |            |                   |   |             |  |   |            

The weighted-average amortization periods for the customer relationships, product technology and
know-how, patented technology and tradename acquired in 2007 are 12 years, 10 years, 12 years and 12 years, respectively. The weighted-average amortization period for all intangible assets acquired in 2007 is 11 years. The goodwill acquired in these
acquisitions is not deductible for tax purposes.

Purchased In-process Research and Development

Purchased in-process research and development expense represents the value assigned to research and development projects which were commenced but not yet
completed at the date of acquisition, technological feasibility for these projects has not been established and they have no alternative future use in research and



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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



development activities or otherwise. In accordance with FASB SFAS No. 2, Accounting for Research and Development Costs, as interpreted by
FASB Interpretation No. 4, Applicability of FASB Statement No. 2 to Business Combinations Accounted for by the Purchase Method, amounts assigned to purchased in-process research and development meeting these criteria must be
charged to expense at the date of consummation of the purchase business combination. In 2007, a charge of $25.9 million was recorded for purchased in-process research and development in connection with the business combinations, based on preliminary
allocations of the purchase prices.

The $25.0 million purchased in-process research and development in connection with the acquisition of
Digene, represents the estimated fair value of Digenes incomplete research and development programs that had not yet reached technological feasibility and had no alternative future uses as of the acquisition date and, therefore, the amount was
expensed upon acquisition.

While the in-process research and development programs were expected to represent new differentiating
technologies, the revenues forecasted for these projects were a minor component of the overall projected revenues. A summary of these in-process research and development programs as of the acquisition date is as follows:



| |  |  | Genotyping Testsan in vitro nucleic acid target amplification assay to specifically identify high-risk HPV types. The project was approximately 70% complete
at the valuation date.
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Asuragen CFinvolves the development and marketing of cystic fibrosis (CF) screening products. The project was approximately 50% complete at the valuation
date.
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Fast HPVa low-cost product that is designed to meet the needs of the developing world and run in low resource settings without main electricity and in
temperature extremes. The project was approximately 70% complete at the valuation date.
| | - |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Genotyping LMXan in vitro nucleic acid target amplification assay for multiplex detection. The project was approximately 45% complete at the valuation date.
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------

The estimated fair values of the projects were determined using the income approach, which discounts expected future
cash flows to present value. We estimated the fair value of the purchased in-process research and development using a present value discount rate of 15%, which is based on the estimated return requirements for the projects and includes a premium
over the Companys weighted average cost of capital due to the inherent uncertainties associated with the incomplete programs. The rate is consistent with Digenes internal rates for similar research and development projects, and
we believe represents the rate market participants would use to value the purchased in-process research and development. The projected cash flows were estimated by forecasting total revenues expected from these products and deducting appropriate
operating expenses, cash flow adjustments and contributory asset returns to establish a forecast of the net return on the in-process technology. These net returns were reduced to take into account the time value of money and the risks associated
with the inherent difficulties and uncertainties in achieving commercial readiness. We believe the assumptions used in valuing in-process research and development are reasonable, but they are inherently uncertain.

Pro Forma Results

The following
unaudited pro forma information assumes that the above acquisitions occurred at the beginning of the periods presented. For the years ended December 31, 2007 and 2006, pro forma net sales would have been $760.3 million and $643.4 million, pro
forma net income would have been $68.9 million and $55.1 million, pro forma basic net income per Common Share would have been $0.41 and $0.37, and pro forma



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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



diluted net income per Common Share would have been $0.39 and $0.36, respectively. The 2007 pro forma data excludes a $25.9 million charge for purchased
in-process research and development. These unaudited pro forma results are intended for informational purposes only and are not necessarily indicative of the results of operations that would have occurred had the acquisitions been in effect at the
beginning of the periods presented, or of future results of the combined operations.

2006 Acquisitions

During 2006, the Company completed seven acquisitions which individually were not significant to the overall consolidated financial statements. The
aggregate purchase price of these 2006 acquisitions, net of cash acquired was $88.3 million, including the issuance of 125,000 shares of QIAGEN common stock valued at $1.8 million.

Pursuant to the purchase agreements, the Company could be required to make additional contingent cash payments of which $3.9 million and $2.9 million
were earned as of December 31, 2007 and 2006, respectively, and recorded as an increase to goodwill.

The acquisitions completed in
2006 include the following:



| |  |  | In the fourth quarter of 2006, the Company completed the acquisition of Genaco Biomedical Products, Inc., located in Huntsville, Alabama. Genaco is an early-stage
company applying a proprietary polymerase chain reaction (PCR)-based multiplexing technology, Tem-PCR, to develop Templex molecular diagnostic tests. Multiplexing is a rapidly emerging segment in molecular diagnostics and is also highly
synergistic with the Companys portfolio of qPCR-based molecular diagnostic assays which in the segment of infectious disease diagnostics is considered to be the broadest in the world. The Company also acquired former distributors PhileKorea
Technology Inc., located in Daejeon, Korea and ATC Health Products Ltd., located in Ankara, Turkey.
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | In the second quarter of 2006, the Company completed the acquisitions of Gentra Systems, Inc., located in Minneapolis, Minnesota, Singapore-based Research Biolabs
Pte. Ltd. and Research Biolabs Sdn Bhd, located in Malaysia. Gentra is a leading developer, manufacturer and supplier of non-solid phase nucleic acid purification products, providing both consumables and automated platforms. The acquisition expanded
the Companys position as a leading provider of preanalytical and molecular diagnostics solutions to research and diagnostic customers. The acquisition of Research Biolabs, previously our distributor, expanded the Companys direct presence
in one of the most dynamic regions of the Companys global business. Research Biolabs currently has sales and marketing teams in Singapore, Malaysia and Indonesia, and will also support market development in Thailand and Vietnam.
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | During the first quarter of 2006, the Company completed two acquisitions. PG Biotech Co. Ltd. (PG Biotech) is a leading developer, manufacturer and supplier of
PCR-based molecular diagnostic kits in China. The acquisition supported the Companys position as a leading provider of molecular diagnostics solutions to OEM partners and customers in the rapidly growing Asian markets. The Company also
acquired certain assets and operations from Diatech s.r.l., Jesi, Italy, which distributes products produced by artus, which we acquired in 2005, in Italy.
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

The Companys acquisitions have historically been made at prices above the fair value of the acquired assets, resulting in goodwill, due to
expectations of synergies of combining the businesses. These synergies include use of the Companys existing infrastructure such as sales force, distribution channels and customer relations to expand sales of the acquired businesses
products; use of the infrastructure of the acquired businesses to cost effectively expand sales of Company products; and elimination of duplicative facilities, functions and staffing.



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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



These acquisitions have been accounted for using the purchase method of accounting, and the acquired
companies results have been included in the accompanying financial statements from their respective dates of acquisition. Allocation of the purchase price for acquisitions was based on estimates of the fair value of the net assets acquired.

The following table summarizes the estimated fair values of the assets acquired and liabilities assumed at the date of acquisition. Using
the results of independent and internally prepared appraisals, the purchase prices for the 2006 acquisitions have been allocated as follows:



|                                                                                |  |                  |             |  
|------------------------------------------------------------------------------- |  | ---------------- | ----------- | -
|                                                                                |  | 2006Acquisitions |            
|Purchase Price:                                                                 |  |                  |             |  
|Cash, including direct costs                                                    |  | $                | 90,454,000  |  
|Stock issued                                                                    |  |                  | 1,847,000   |  
|Cash acquired                                                                   |  |                  | (4,017,000  | )
|                                                                                |  |                  |             |  
|                                                                                |  | $                | 88,284,000  |  
|                                                                                |  |                  |             |  
|Allocation:                                                                     |  |                  |             |  
|Working Capital                                                                 |  | $                | 6,256,000   |  
|Fixed and other long-term assets                                                |  |                  | 5,580,000   |  
|Acquired intangible assets                                                      |  |                  | 41,012,000  |  
|Goodwill                                                                        |  |                  | 48,324,000  |  
|Purchased in-process research and development expense                           |  |                  | 2,200,000   |  
|Deferred tax liability on fair value of identifiable intangible assets acquired |  |                  | (11,855,000 | )
|Liabilities assumed                                                             |  |                  | (3,233,000  | )
|                                                                                |  |                  |             |  
|                                                                                |  | $                | 88,284,000  |  
|                                                                                |  |                  |             |  

Acquired intangible assets for 2006 acquisitions are as follows:



|                       |  |                  |           
|---------------------- |  | ---------------- | ----------
|                       |  | 2006Acquisitions
|Customer relationships |  | $                | 10,887,000
|Product technology     |  |                  | 26,600,000
|Tradename/license      |  |                  | 2,000,000 
|Non-compete            |  |                  | 1,525,000 
|                       |  |                  |           
|                       |  | $                | 41,012,000
|                       |  |                  |           

Of the 2006 transaction costs, approximately $300,000 was accrued at December 31, 2006. Of
the goodwill acquired in 2006, approximately $818,000 is expected to be tax deductible. The weighted average amortization periods for intangible assets acquired in 2006 are: 12 years for customer relationships; 11 years for product technology; nine
years for trade name and license; and four years for non-compete agreements.

2005 Acquisitions

In May 2005, the Company acquired all of the outstanding capital stock of artus Gesellschaft für molekularbiologische Diagnostik und Entwicklung mbH
(artus), an established leader in PCR-based molecular diagnostic tests for pathogenenic, genotyping and pharmacogenomic testing. The Company believes that this acquisition is an excellent fit in its strategy to increase the Companys value as a
partner to the molecular



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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



diagnostics industry. In addition to its leading position in preanalytical sample preparation in molecular diagnostics, the Company is now able to offer
optimized and synchronized combinations of preanalytical sample preparation and diagnostic assay solutions to its partners in molecular diagnostics. By providing the opportunity for partners in molecular diagnostics to expand their portfolio by
adding artus validated assays, the Company intends to further contribute to accelerating the growth of molecular diagnostics by broadening the menu of tests available on todays diagnostic platforms. The purchase price, including direct
acquisition costs and adjusted as per the terms of the share purchase agreement, paid by the Company was approximately EUR 26.4 million (approximately $32.6 million at May 31, 2005) in cash. A total of EUR 9.3 million (approximately
$11.5 million at May 31, 2005), of which EUR 2.7 million was considered as purchase price, was paid into escrow and will be released subject to certain milestones being met. During 2006, EUR 7.65 million of the escrow amount was
released with EUR 6.3 million (approximately $7.6 million) recorded as additional purchase price resulting in an increase to goodwill.

During 2005, the Company completed five other acquisitions which were not individually significant to the overall consolidated financial statements. The aggregate purchase price of the 2005 acquisitions, net of cash acquired was $42.5
million. In 2006, pursuant to the acquisition agreements, an additional $1.6 million was paid and recorded as additional purchase price resulting in an increase to goodwill. The 2005 acquisitions included the following:



| |  |  | At the end of the fourth quarter of 2005, we completed the acquisition of Eppendorf AGs reagent business which includes the Eppendorf 5-Prime
nucleic acid sample preparation and PCR reagent product lines and related intellectual property. The acquisition added to our core strategic focus, represented an attractive addition to our portfolio of preanalytical and nucleic acid amplification
consumables and added a very promising pipeline of proprietary technologies for nucleic acid handling, separation, purification and amplification.
| | - |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | During the third quarter of 2005, we completed three acquisitions. We acquired Tianwei Times, located in Beijing, China, which is a leading developer, manufacturer
and supplier of nucleic acid sample preparation consumables in China. We acquired substantially all assets of Tianwei Times through our new wholly owned subsidiary Tiangen Biotech Beijing Co. Ltd. (Tiangen). The Tiangen acquisition expands
QIAGENs position as the leading supplier for products and technologies for preanalytical sample preparation in the rapidly growing market in China. In August we acquired the business of LumiCyte, Inc., which has developed and recently
initiated marketing of the first products based on its proprietary STS- (Surface Tension Segmented) Biochip sample preparation solution for MALDI (Matrix-Assisted Laser Desorption/Ionization)-Mass Spectrometry (MS), and SuNyx GmbH which has
developed and marketed of its proprietary platforms for sample preparation of peptide and protein samples for analysis on Liquid Chromatography (LC)-MALDI Mass Spectrometry.
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | During the second quarter of 2005, we acquired Nextal Biotechnology, Inc. (Nextal), subsequently renamed QIAGEN Canada, Inc., which is located in Canada and is a
fast-growing provider of proprietary sample preparation tools which make protein crystallization more accessible.
| | - |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



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QIAGEN N.V. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



The components of the purchase price allocation for 2005 acquisitions, as revised in 2006 for
finalization of the purchase price allocation, are as follows:



|                                                                                |  |                      |             |   |                       |   |            |       |  |   |             |  
|------------------------------------------------------------------------------- |  | -------------------- | ----------- | - | --------------------- | - | ---------- | ----- |  | - | ----------- | -
|                                                                                |  | 2005ArtusAcquisition |             |   | 2005OtherAcquisitions |   |            | Total | 
|Purchase Price:                                                                 |  |                      |             |   |                       |   |            |       |  |   |             |  
|Cash, including direct costs                                                    |  | $                    | 32,625,000  |   |                       | $ | 43,038,000 |       |  | $ | 75,663,000  |  
|Cash acquired                                                                   |  |                      | (1,334,000  | ) |                       |   | (514,000   | )     |  |   | (1,848,000  | )
|                                                                                |  |                      |             |   |                       |   |            |       |  |   |             |  
|                                                                                |  | $                    | 31,291,000  |   |                       | $ | 42,524,000 |       |  | $ | 73,815,000  |  
|                                                                                |  |                      |             |   |                       |   |            |       |  |   |             |  
|Allocation:                                                                     |  |                      |             |   |                       |   |            |       |  |   |             |  
|Working Capital                                                                 |  | $                    | 4,097,000   |   |                       | $ | (987,000   | )     |  | $ | 3,110,000   |  
|Fixed and other long-term assets                                                |  |                      | 322,000     |   |                       |   | 4,239,000  |       |  |   | 4,561,000   |  
|Acquired intangible assets                                                      |  |                      | 24,500,000  |   |                       |   | 21,197,000 |       |  |   | 45,697,000  |  
|Goodwill                                                                        |  |                      | 23,801,000  |   |                       |   | 18,989,000 |       |  |   | 42,790,000  |  
|Purchased in-process research and development expense                           |  |                      | 700,000     |   |                       |   | 2,525,000  |       |  |   | 3,225,000   |  
|Deferred tax liability on fair value of identifiable intangible assets acquired |  |                      | (5,800,000  | ) |                       |   | (3,403,000 | )     |  |   | (9,203,000  | )
|Liabilities assumed                                                             |  |                      | (16,329,000 | ) |                       |   | (36,000    | )     |  |   | (16,365,000 | )
|                                                                                |  |                      |             |   |                       |   |            |       |  |   |             |  
|                                                                                |  | $                    | 31,291,0000 |   |                       | $ | 42,524,000 |       |  | $ | 73,815,000  |  
|                                                                                |  |                      |             |   |                       |   |            |       |  |   |             |  

Acquired intangible assets for 2005 acquisitions are as follows:



|                       |  |                      |            |                       |   |            |  |   |           
|---------------------- |  | -------------------- | ---------- | --------------------- | - | ---------- |  | - | ----------
|                       |  | 2005ArtusAcquisition |            | 2005OtherAcquisitions |   | Total     
|Customer relationships |  | $                    | 3,400,000  |                       | $ | 4,899,000  |  | $ | 8,299,000 
|Product technology     |  |                      | 11,100,000 |                       |   | 16,173,000 |  |   | 27,273,000
|Trade name/license     |  |                      | 10,000,000 |                       |   | 125,000    |  |   | 10,125,000
|                       |  |                      |            |                       |   |            |  |   |           
|                       |  | $                    | 24,500,000 |                       | $ | 21,197,000 |  | $ | 45,697,000
|                       |  |                      |            |                       |   |            |  |   |           

Of the goodwill acquired in 2005, approximately $12.6 million is expected to be tax deductible.
The weighted average amortization periods for intangible assets acquired in 2005 are: 14 years for customer relationships; 10 years for product technology; and 10 years for trade name and license.

Restructuring of Acquired Businesses

The Company has undertaken restructuring activities related to the 2007 acquired businesses. These activities, which were accounted for in accordance with EITF Issue No. 95-3, Recognition of Liabilities in Connection with a
Purchase Business Combination, have primarily included reductions in staffing levels and the abandonment of excess facilities. In connection with these restructuring activities, as part of the cost of acquisitions, the Company established
reserves as detailed below. In accordance with EITF Issue No. 95-3, the Company finalizes its restructuring plans no later than one year from the respective dates of the acquisitions. Upon finalization of restructuring plans or settlement of
obligations for less than the expected amount, any excess reserves are reversed with a corresponding decrease in goodwill. Accrued acquisition expenses are included in accrued and other liabilities in the accompanying consolidated balance sheet.



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QIAGEN N.V. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



Changes in the acquisition accrual for the 2007 acquisitions are as follows:



|                                     |  |                                           |           |   |                    |   |           |  |   |           |   |  |   |           |  
|------------------------------------ |  | ----------------------------------------- | --------- | - | ------------------ | - | --------- |  | - | --------- | - |  | - | --------- | -
|                                     |  | Relocation, severance andemployee related |           |   | Lease and facility |   | Other     |  |   | Total     |  
|Amounts accrued                      |  | $                                         | 2,445,000 |   |                    | $ | 1,561,000 |  | $ | 1,011,000 |   |  | $ | 5,017,000 |  
|Amounts paid in cash or settled      |  |                                           | (135,000  | ) |                    |   |          |  |   | (859,000  | ) |  |   | (994,000  | )
|                                     |  |                                           |           |   |                    |   |           |  |   |           |   |  |   |           |  
|ACCRUAL BALANCE AT DECEMBER 31, 2007 |  | $                                         | 2,310,000 |   |                    | $ | 1,561,000 |  | $ | 152,000   |   |  | $ | 4,023,000 |  
|                                     |  |                                           |           |   |                    |   |           |  |   |           |   |  |   |           |  

The changes in accrued acquisition expenses for acquisitions completed during 2006 are as follows:



|                                     |  |                                           |          |   |                    |   |            |       |  |   |            |   |  |   |            |  
|------------------------------------ |  | ----------------------------------------- | -------- | - | ------------------ | - | ---------- | ----- |  | - | ---------- | - |  | - | ---------- | -
|                                     |  | Relocation, severance andemployee related |          |   | Lease and facility |   |            | Other |  |   | Total      |  
|ACCRUAL BALANCE AT DECEMBER 31, 2006 |  | $                                         | 773,000  |   |                    | $ | 1,967,000  |       |  | $ | 538,000    |   |  | $ | 3,278,000  |  
|Amounts accrued                      |  |                                           | 221,000  |   |                    |   | 129,000    |       |  |   | 709,000    |   |  |   | 1,059,000  |  
|Amounts paid in cash or settled      |  |                                           | (994,000 | ) |                    |   | (2,096,000 | )     |  |   | (1,177,000 | ) |  |   | (4,267,000 | )
|                                     |  |                                           |          |   |                    |   |            |       |  |   |            |   |  |   |            |  
|ACCRUAL BALANCE AT DECEMBER 31, 2007 |  | $                                         |         |   |                    | $ |           |       |  | $ | 70,000     |   |  | $ | 70,000     |  
|                                     |  |                                           |          |   |                    |   |            |       |  |   |            |   |  |   |            |  



|5. | Comprehensive Income
|-- | --------------------

SFAS No. 130,
Reporting Comprehensive Income requires that comprehensive income, which is the total of net income and all other non-owner changes in equity, be displayed in the financial statements. The components of the Companys comprehensive
income or loss as presented in the Consolidated Statements of Shareholders Equity include net income, unrealized gains and losses from foreign currency translation, forward contracts, pension liabilities and available-for-sale marketable
securities. The following table is a summary of the components of accumulated other comprehensive income:



|                                                                                                                    |  |      |            |   |      |   |            |  
|------------------------------------------------------------------------------------------------------------------- |  | ---- | ---------- | - | ---- | - | ---------- | -
|                                                                                                                    |  | 2007 |            |   | 2006 |  
|Net unrealized gain on marketable securities                                                                        |  | $    | 899,000    |   |      | $ | 1,404,000  |  
|Net unrealized gain (loss) on forward contracts, net of tax of $512,000 and $175,000 in 2007 and 2006, respectively |  |      | 1,225,000  |   |      |   | (289,000   | )
|Net unrealized loss on pension, net of tax of $67,000 and $129,000 in 2007 and 2006, respectively                   |  |      | (157,000   | ) |      |   | (204,000   | )
|Foreign currency translation adjustments                                                                            |  |      | 73,057,000 |   |      |   | 40,324,000 |  
|                                                                                                                    |  |      |            |   |      |   |            |  
|Accumulated other comprehensive income                                                                              |  | $    | 75,024,000 |   |      | $ | 41,235,000 |  
|                                                                                                                    |  |      |            |   |      |   |            |  

In September of 2006, the FASB issued SFAS No. 158, Employers Accounting for
Defined Benefit Pension and Other Post-retirement Plans, an amendment of SFAS No. 87, 88, 106, and 132(R). SFAS No. 158 makes numerous changes related to the accounting for pension and postretirement benefit plans. The most
significant change is that the funded status of all post-retirement plans will be recorded on the balance sheet. The difference between a plans funded status and its current balance sheet position will be recognized, net of taxes,



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QIAGEN N.V. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



as a component of shareholders equity. The adoption of SFAS No. 158 resulted in an increase to the pension liability of $333,000, deferred
taxes of $129,000, and a net increase in the loss of accumulated other comprehensive income of $204,000 in the consolidated balance sheet for the year ending December 31, 2006.



|6. | Derivatives and Hedging
|-- | -----------------------

The Company accounts for
its derivative instruments in accordance with SFAS No. 133 and related guidance which require that an entity recognize all derivatives as either assets or liabilities in the balance sheet, measure those instruments at fair value and recognize
the change in fair value in earnings in the period of change unless the derivative qualifies as an effective hedge that offsets certain exposures. The gain or loss on the change in the fair values of the derivatives are included in earnings to the
extent they offset the earnings impact of changes in the fair values of the hedged obligations. Any difference is recorded in accumulated other comprehensive income, a component of shareholders equity. At December 31, 2007 and 2006, the
Company held contracts which effectively fix the exchange rate at which intercompany loans will be settled, so that gains or losses on the forward contracts offset the losses or gains from changes in the value of the underlying intercompany loans.
The Company has determined that no ineffectiveness exists related to these derivatives.

During 2004, the Company entered into forward
arrangements which qualify for hedge accounting as cash flow hedges of foreign currency denominated liabilities. At December 31, 2007 and 2006, these forward contracts totaled $44.0 million as a hedge to currency risk on intercompany loans. The
contracts mature in July 2011 and had fair market values at December 31, 2007 and 2006 of approximately $5.1 million and $2.8 million, respectively, are included in other long-term liabilities in the accompanying consolidated balance sheets.

In addition in 2007 and 2006, the Company had forward arrangements which qualify as cash flow hedges of foreign currency denominated
liabilities. At December 31, 2007, the Company held a contract for Canadian dollars 5.0 million which matures in February 2008 and had a fair market value of $788,000 at December 31, 2007 included in other liabilities. Additionally
the Company held a contract for Japanese yen 160.0 million which matures in March 2008 and had a fair market value of $63,000 at December 31, 2007 which is included in prepaid and other assets at December 31, 2007.

At December 31, 2006, the Company held a contract for Canadian dollars 8.0 million which matured in February 2007 and had a fair market value
of $126,000 at December 31, 2006. Additionally the Company held a contract for Japanese yen 200.0 million which matured in April 2007 and had a fair market value of $190,000 at December 31, 2006. The fair values of these forwards are
included in prepaid and other assets at December 31, 2006.

In the ordinary course of business, the Company purchases foreign currency
exchange options to manage potential losses from foreign currency exposures. These options give the Company the right, but not the obligation, to purchase foreign currencies in exchange for U.S. dollars at predetermined exchange rates. The principal
objective of such options is to minimize the risks and/or costs associated with global financial and operating activities. The Company does not utilize financial instruments for trading or other speculative purposes. The fair market values of these
options totaled approximately EUR 1.0 million ($1.5 million) at December 31, 2007 and were not significant at December 31, 2006. Gains or losses from changes in the fair market values are included in other miscellaneous income
(expense), net. The 2007 options expired in January 2008 and a loss of EUR 981,000 (or approximately $1.4 million) was realized.



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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



|7. | Marketable Securities
|-- | ---------------------

At December 31, 2007,
the Company had investments in marketable securities consisting of an investment in Coley Pharmaceutical Group, Inc (CPG). At December 31, 2007 and 2006, the Company held 289,096 shares in CPG with a fair market value of $2.3 million and $2.8
million, respectively and a cost of $1.4 million. In December 2007, CPG was acquired in a tender offer and as a result the Company tendered its shares in exchange for $8 per share. Upon the exchange in January 2008, the Company received $2.3 million
in cash and recognized a gain of approximately $800,000.

At December 31, 2006, the Company had investments in marketable securities
consisting of floating rate and fixed rate debt instruments which had a fair market value and cost of approximately EUR 40.0 million ($52.8 million at December 31, 2006). These securities are classified as current assets in the
accompanying consolidated balance sheets since the Company could sell the securities at its discretion on the auction day without penalty or loss of principal.



|                     |  |      |            |                      |   |                       |  |   |                  |   |  |   |           
|-------------------- |  | ---- | ---------- | -------------------- | - | --------------------- |  | - | ---------------- | - |  | - | ----------
|                     |  | Cost |            | GrossUnrealizedGains |   | GrossUnrealizedLosses |  |   | Fair MarketValue
|2006 Maturities due: |  |      |            |                      |   |                       |  |   |                  |   |  |   |           
|Within one year      |  | $    | 14,998,000 |                      | $ | 38,000                |  | $ | (5,000           | ) |  | $ | 15,031,000
|One to three years   |  |      | 37,756,000 |                      |   | 54,000                |  |   | (59,000          | ) |  |   | 37,751,000
|                     |  |      |            |                      |   |                       |  |   |                  |   |  |   |           
|                     |  | $    | 52,754,000 |                      | $ | 92,000                |  | $ | (64,000          | ) |  | $ | 52,782,000

For the years ended December 31, 2007, 2006 and 2005, proceeds from sales of
available-for-sale securities totaled $299.0 million, $20.0 million and $55.4 million, respectively, and, calculated on the specific identification method, in 2005 there were realized losses of $507,000. There were no realized gains or losses during
2007 and 2006.



|8. | Prepaid Expenses and Other
|-- | --------------------------

Prepaid expenses and
other current assets are summarized as follows as of December 31, 2007 and 2006:



|                                 |  |      |            |      |   |           
|-------------------------------- |  | ---- | ---------- | ---- | - | ----------
|                                 |  | 2007 |            | 2006
|Prepaid expenses and prepayments |  | $    | 18,555,000 |      | $ | 16,360,000
|Escrow Funds                     |  |      |           |      |   | 1,500,000 
|Value Added Tax                  |  |      | 4,980,000  |      |   | 1,073,000 
|Other                            |  |      | 10,158,000 |      |   | 10,830,000
|                                 |  |      |            |      |   |           
|                                 |  | $    | 33,693,000 |      | $ | 29,763,000
|                                 |  |      |            |      |   |           



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QIAGEN N.V. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



|9. | Property, Plant and Equipment
|-- | -----------------------------

Property, plant and
equipment, including equipment acquired under capital lease obligations, are summarized as follows as of December 31, 2007 and 2006:



|                                                |  |                                |  |      |              |   |      |   |              |  
|----------------------------------------------- |  | ------------------------------ |  | ---- | ------------ | - | ---- | - | ------------ | -
|                                                |  | Estimateduseful life(in years) |  | 2007 |              |   | 2006 |  
|Land                                            |  |                               |  | $    | 13,793,000   |   |      | $ | 12,896,000   |  
|Buildings and improvements                      |  | 3-40                           |  |      | 225,804,000  |   |      |   | 173,169,000  |  
|Machinery and equipment                         |  | 2-10                           |  |      | 111,930,000  |   |      |   | 83,146,000   |  
|Computer software                               |  | 1-5                            |  |      | 37,724,000   |   |      |   | 28,685,000   |  
|Furniture and office equipment                  |  | 2-10                           |  |      | 52,877,000   |   |      |   | 40,969,000   |  
|Construction in progress                        |  |                               |  |      | 7,842,000    |   |      |   | 14,062,000   |  
|                                                |  |                                |  |      |              |   |      |   |              |  
|                                                |  |                                |  |      | 449,970,000  |   |      |   | 352,927,000  |  
|Less: Accumulated depreciation and amortization |  |                                |  |      | (166,479,000 | ) |      |   | (131,650,000 | )
|                                                |  |                                |  |      |              |   |      |   |              |  
|Property, plant and equipment, net              |  |                                |  | $    | 283,491,000  |   |      | $ | 221,277,000  |  
|                                                |  |                                |  |      |              |   |      |   |              |  

Amortization of assets acquired under capital lease obligations is included within accumulated
depreciation and amortization above for the years ended December 31, 2007 and 2006, respectively. For the years ended December 31, 2007, 2006 and 2005 depreciation and amortization expense totaled $26.1 million, $19.7 million and $19.0
million, respectively. Repairs and maintenance expense was $7.4 million, $4.5 million and $4.0 million in fiscal years 2007, 2006 and 2005, respectively.

Construction on a new logistics facility in Germany began in August 2006 and was completed in 2007. The new facility cost approximately EUR 9.0 million (approximately $13.1 million) and of the amount incurred,
approximately EUR 117,000 (approximately $170,000) represents capitalized interest.



|10. | Investments
|--- | -----------

The Company has made strategic
investments in certain companies that are accounted for using the equity or cost method of accounting. A summary of these investments, which are included in other assets, as of December 31, 2007 and 2006 is as follows:



|                    |  |                     |   |      |                                      |           |                                                        |   |           |  |   |           |   |  |   |           |   |  |   |            |  
|------------------- |  | ------------------- | - | ---- | ------------------------------------ | --------- | ------------------------------------------------------ | - | --------- |  | - | --------- | - |  | - | --------- | - |  | - | ---------- | -
|Company             |  | OwnershipPercentage |   |      | Equity InvestmentsAs of December 31, |           | Share of income (loss)For the years ended December 31, |  
|                    |  | 2007                |   | 2006 |                                      | 2007      |                                                        |   | 2006      |  |   | 2005      |  
|PreAnalytiX GmbH    |  | 50.00               | % |      | $                                    | 4,555,000 |                                                        | $ | 2,623,000 |  | $ | 1,318,000 |   |  | $ | 1,009,000 |   |  | $ | (1,079,000 | )
|QBM Cell Science    |  | 19.50               | % |      | $                                    | 504,000   |                                                        | $ | 546,000   |  | $ | (42,000   | ) |  | $ | (28,000   | ) |  | $ | 3,000      |  
|QIAGEN Finance      |  | 100.00              | % |      | $                                    | 277,000   |                                                        | $ | 169,000   |  | $ | 86,000    |   |  | $ | 66,000    |   |  | $ | (73,000    | )
|QIAGEN Euro Finance |  | 100.00              | % |      | $                                    | 476,000   |                                                        | $ | 248,000   |  | $ | 250,000   |   |  | $ | 204,000   |   |  | $ |           |  
|Dx Assays Pte Ltd   |  | 33.30               | % |      | $                                    | 747,000   |                                                        | $ |          |  | $ |          |   |  | $ |          |   |  | $ |           |  



|                             |  |                     |   |      |                                |           |  |   |          
|---------------------------- |  | ------------------- | - | ---- | ------------------------------ | --------- |  | - | ---------
|Company                      |  | OwnershipPercentage |   |      | Cost Investment atDecember 31,
|                             |  | 2007                |   | 2006
|Operon Biotechnologies, Inc. |  | 16.00               | % |      | $                              | 4,000,000 |  | $ | 4,000,000



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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



For PreAnalytiX, total assets amounted to $12.3 million and $7.5 million as of December 31, 2007
and 2006, respectively. The shareholders equity for PreAnalytiX amounted to $11.0 million as of December 31, 2007 and $7.0 million as of December 31, 2006. PreAnalytiX revenues totaled $7.8 million in both 2007 and 2006. PreAnalytiX
net income was $3.3 million and $3.2 million in 2007 and 2006, respectively.

As of December 31, 2007 and 2006, total assets of QBM
Cell Science totaled $383,000, and $576,000, respectively, and shareholders equity amounted to $317,000 and $578,000, respectively. In 2007, QBM Cell Science recorded revenues of $303,000 and a net loss of $396,000. In 2006, revenues of
$523,000 and a net loss of $37,000 were recorded.

During 2007, the Company made an initial investment of $747,000 in Dx Assays Pte Ltd, a
joint venture with Bio*One Capital. The Companys investment represents a 33.3% interest in Dx Assays Pte Ltd. Dx Assays expects to be one of the first centers in Singapore for assay development in which molecular diagnostics for infectious and
genetic diseases will be developed. The center is expected to be fully operational by early 2008.

The method of accounting for an
investment depends on the extent of the Companys control. The Company monitors changes in circumstances that may require a reassessment of the level of control. The Company periodically reviews the carrying value of these investments for
impairment, considering factors such as the most recent stock transactions and book values from the recent financial statements. The fair value of cost-method investments is estimated when there are identified events or changes in circumstances that
may have an impact on the fair value of the investment.

In December 2003, the FASB issued a revised Interpretation No. 46 (FIN 46R),
Consolidation of Variable Interest Entities, replacing the original interpretation issued in January 2003. This interpretation requires a company to consolidate a variable interest entity if it is designated as the primary beneficiary of
that entity even if the company does not have a majority voting interest. A variable interest entity is generally defined as an entity with insufficient equity to finance its activities or where the owners of the entity lack the risk and rewards of
ownership.

The Company has a 50% interest in a joint venture company, PreAnalytiX GmbH, for which neither joint venture partner is the
primary beneficiary within the provisions of FIN 46R. Thus, the investment is accounted for under the equity method. QIAGEN AG has been a 50% joint venture partner in PreAnalytiX since November 1999, when the joint venture was formed. PreAnalytiX
was formed to develop, manufacture and market integrated systems for the collection, stabilization and purification of nucleic acids for molecular diagnostic testing. At present, the Companys maximum exposure to loss as a result of its
involvement with PreAnalytiX is limited to the Companys share of losses from the equity method investment itself. The joint venture entity reported net profit for the year ended December 31, 2007.

The Company has a 100% interest in QIAGEN Finance (Luxembourg) S.A. (QIAGEN Finance), a company established for the purpose of issuing convertible debt
in 2004. During the first quarter of 2006, the Company established QIAGEN Euro Finance (Luxembourg) S.A. (Euro Finance) for the purpose of issuing additional convertible debt. In August 2004, the Company issued $150.0 million of 1.5% Senior
Convertible Notes (2004 Notes) due in 2024 through QIAGEN Finance. In May 2006, the Company completed the offering of $300.0 million 3.25% Senior Convertible Notes (2006 Notes) due in 2026 through Euro Finance. The proceeds of the 2004 and 2006
Notes were loaned to subsidiaries within the consolidated QIAGEN N.V. group. QIAGEN N.V. has guaranteed all of these Notes, and has agreements with each of QIAGEN Finance and Euro Finance to issue Common Shares to the investors in the event of
conversion of any of the Notes. According to the provisions of FIN 46R, QIAGEN Finance and Euro Finance are variable interest entities. The Company is not the primary beneficiary, therefore neither is consolidated. Accordingly, the 2004 and 2006
convertible debt is not included in



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QIAGEN N.V. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



the consolidated statements of QIAGEN N.V., though QIAGEN N.V. does report the full obligation of the debt through its liabilities to QIAGEN Finance and Euro
Finance. QIAGEN N.V. accounts for its investments in QIAGEN Finance and Euro Finance as equity investments pursuant to APB No. 18, and accordingly records 100% of the profit or loss of QIAGEN Finance and Euro Finance in the gain or loss from
equity method investees. At present, the Companys maximum exposure to loss as a result of its involvement with QIAGEN Finance and Euro Finance is limited to the Companys share of losses from the equity method investments.



|11. | Intangible Assets
|--- | -----------------

The following sets forth the
acquired intangible assets by major asset class as of December 31, 2007 and December 31, 2006:



|                                                     |  |                     |  |                         |               |  |                     |             |                         |  |   |             |  |   |             |  
|---------------------------------------------------- |  | ------------------- |  | ----------------------- | ------------- |  | ------------------- | ----------- | ----------------------- |  | - | ----------- |  | - | ----------- | -
|                                                     |  | WeightedAverageLife |  | 2007                    |               |  | 2006                |            
|                                                     |  | GrossCarryingAmount |  | AccumulatedAmortization |               |  | GrossCarryingAmount |             | AccumulatedAmortization | 
|Amortized Intangible Assets:                         |  |                     |  |                         |               |  |                     |             |                         |  |   |             |  |   |             |  
|Patent and license rights                            |  | 11.20 years         |  | $                       | 216,871,000   |  | $                   | (24,557,000 | )                       |  | $ | 41,362,000  |  | $ | (11,744,000 | )
|Developed technology                                 |  | 10.47 years         |  |                         | 345,213,000   |  |                     | (30,412,000 | )                       |  |   | 78,814,000  |  |   | (11,690,000 | )
|Customer base, Trademarks and non-compete agreements |  | 11.46 years         |  |                         | 142,152,000   |  |                     | (10,160,000 | )                       |  |   | 24,220,000  |  |   | (2,470,000  | )
|                                                     |  |                     |  |                         |               |  |                     |             |                         |  |   |             |  |   |             |  
|                                                     |  |                     |  | $                       | 704,236,000   |  | $                   | (65,129,000 | )                       |  | $ | 144,396,000 |  | $ | (25,904,000 | )
|                                                     |  |                     |  |                         |               |  |                     |             |                         |  |   |             |  |   |             |  
|Unamortized Intangible Assets:                       |  |                     |  |                         |               |  |                     |             |                         |  |   |             |  |   |             |  
|Goodwill                                             |  |                     |  | $                       | 1,107,882,000 |  |                     |             |                         |  | $ | 160,141,000 |  |   |             |  
|                                                     |  |                     |  |                         |               |  |                     |             |                         |  |   |             |  |   |             |  

Amortization expense on intangible assets totaled approximately $36.4 million, $10.3 million and
$5.9 million, respectively, for the years ended December 31, 2007, 2006 and 2005. In connection with the acquisitions as more fully discussed in Note 4, $25.9 million and $2.2 million of purchase price was allocated to purchased in-process
research and development and expensed during the years ended December 31, 2007 and 2006, respectively.

Amortization of intangibles
for the next five years is expected to be approximately:



|                         |  |              |           
|------------------------ |  | ------------ | ----------
|                         |  | Amortization
|Years ended December 31: |  |              |           
|2008                     |  | $            | 64,874,000
|2009                     |  | $            | 64,424,000
|2010                     |  | $            | 63,944,000
|2011                     |  | $            | 63,416,000
|2012                     |  | $            | 62,486,000



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QIAGEN N.V. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



The changes in the carrying amount of goodwill, by segment, for the years ended December 31,
2007 and 2006, are as follows:



|                                       |  |         |            |   |               |   |             |      |  |                |            |       |   |            |  |   |               |  
|-------------------------------------- |  | ------- | ---------- | - | ------------- | - | ----------- | ---- |  | -------------- | ---------- | ----- | - | ---------- |  | - | ------------- | -
|                                       |  | Germany |            |   | North America |   |             | Asia |  | OtherCountries |            | Total |  
|BALANCE AT DECEMBER 31, 2005           |  | $       | 42,918,000 |   |               | $ | 23,702,000  |      |  | $              | 1,727,000  |       | $ | 25,567,000 |  | $ | 93,914,000    |  
|Goodwill acquired during the year      |  |         |           |   |               |   | 40,610,000  |      |  |                | 6,896,000  |       |   | 818,000    |  |   | 48,324,000    |  
|Earn-out and milestone payments        |  |         | 7,358,000  |   |               |   |            |      |  |                | 4,768,000  |       |   | 500,000    |  |   | 12,626,000    |  
|Purchase adjustments                   |  |         |           |   |               |   | (2,355,000  | )    |  |                |           |       |   |           |  |   | (2,355,000    | )
|Effect of foreign currency translation |  |         | 5,228,000  |   |               |   | 2,000       |      |  |                | 298,000    |       |   | 2,104,000  |  |   | 7,632,000     |  
|                                       |  |         |            |   |               |   |             |      |  |                |            |       |   |            |  |   |               |  
|BALANCE AT DECEMBER 31, 2006           |  |         | 55,504,000 |   |               |   | 61,959,000  |      |  |                | 13,689,000 |       |   | 28,989,000 |  |   | 160,141,000   |  
|                                       |  |         |            |   |               |   |             |      |  |                |            |       |   |            |  |   |               |  
|Goodwill acquired during the year      |  |         |           |   |               |   | 950,036,000 |      |  |                |           |       |   |           |  |   | 950,036,000   |  
|Intersegment goodwill transfer         |  |         | 802,000    |   |               |   | (802,000    | )    |  |                |            |       |   |            |  |   |              |  
|Earn-out and milestone payments        |  |         |           |   |               |   | 3,000,000   |      |  |                |           |       |   | 875,000    |  |   | 3,875,000     |  
|Purchase adjustments                   |  |         | (1,748,000 | ) |               |   | (17,053,000 | )    |  |                | 193,000    |       |   |           |  |   | (18,608,000   | )
|Effect of foreign currency translation |  |         | 5,930,000  |   |               |   | 1,199,000   |      |  |                | 962,000    |       |   | 4,347,000  |  |   | 12,438,000    |  
|                                       |  |         |            |   |               |   |             |      |  |                |            |       |   |            |  |   |               |  
|BALANCE AT DECEMBER 31, 2007           |  | $       | 60,488,000 |   |               | $ | 998,339,000 |      |  | $              | 14,844,000 |       | $ | 34,211,000 |  | $ | 1,107,882,000 |  
|                                       |  |         |            |   |               |   |             |      |  |                |            |       |   |            |  |   |               |  

In 2007, purchase adjustments primarily reflect adjustments to the acquired tax assets and
liabilities along with final settlements of escrow accounts. In 2006, purchase adjustments represent the final allocation of purchase price and changes in our estimates of lease accruals for cancelled lease space.



|12. | Income Taxes
|--- | ------------

Income before income taxes for the
years ended December 31, 2007, 2006 and 2005 consisted of:



|                                      |  |      |            |      |   |             |  |   |           
|------------------------------------- |  | ---- | ---------- | ---- | - | ----------- |  | - | ----------
|                                      |  | 2007 |            | 2006 |   | 2005       
|Pretax income in The Netherlands      |  | $    | 38,396,000 |      | $ | 16,131,000  |  | $ | 6,474,000 
|Pretax income from foreign operations |  |      | 37,330,000 |      |   | 89,937,000  |  |   | 90,790,000
|                                      |  |      |            |      |   |             |  |   |           
|                                      |  | $    | 75,726,000 |      | $ | 106,068,000 |  | $ | 97,264,000
|                                      |  |      |            |      |   |             |  |   |           

The provisions for income taxes for the years ended December 31, 2007, 2006 and 2005 are as
follows:



|                                 |  |      |            |      |   |            |  |   |           
|-------------------------------- |  | ---- | ---------- | ---- | - | ---------- |  | - | ----------
|                                 |  | 2007 |            | 2006 |   | 2005      
|CurrentThe Netherlands          |  | $    | 3,590,000  |      | $ | 386,000    |  | $ | 700,000   
|Foreign                         |  |      | 18,880,000 |      |   | 21,143,000 |  |   | 31,552,000
|                                 |  |      |            |      |   |            |  |   |           
|                                 |  |      | 22,470,000 |      |   | 21,529,000 |  |   | 32,252,000
|                                 |  |      |            |      |   |            |  |   |           
|DeferredThe Netherlands         |  |      | 1,257,000  |      |   | 376,000    |  |   |          
|Foreign                         |  |      | 1,828,000  |      |   | 13,624,000 |  |   | 2,787,000 
|                                 |  |      |            |      |   |            |  |   |           
|                                 |  |      | 3,085,000  |      |   | 14,000,000 |  |   | 2,787,000 
|                                 |  |      |            |      |   |            |  |   |           
|Total provision for income taxes |  | $    | 25,555,000 |      | $ | 35,529,000 |  | $ | 35,039,000
|                                 |  |      |            |      |   |            |  |   |           



F-32



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QIAGEN N.V. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



The Netherlands statutory income tax rate for the years ended December 31, 2007, 2006 and 2005
was 25.5%, 29.6% and 31.5%, respectively. The principal items comprising the differences between income taxes computed at The Netherlands statutory rate and the effective tax rate for the years ended December 31, 2007, 2006 and 2005 are as
follows:



|                                                  |  |        |            |   |         |      |   |        |   |            |         |  |      |        |  |   |            |   |  |      |  
|------------------------------------------------- |  | ------ | ---------- | - | ------- | ---- | - | ------ | - | ---------- | ------- |  | ---- | ------ |  | - | ---------- | - |  | ---- | -
|                                                  |  | 2007   |            |   | 2006    |      |   | 2005   |  
|                                                  |  | Amount |            |   | Percent |      |   | Amount |   |            | Percent |  |      | Amount |  |   | Percent    |  
|Income taxes at The Netherlands statutory rate    |  | $      | 19,310,000 |   |         | 25.5 | % |        | $ | 31,396,000 |         |  | 29.6 | %      |  | $ | 30,638,000 |   |  | 31.5 | %
|Earnings of subsidiaries taxed at different rates |  |        | 4,894,000  |   |         | 6.5  |   |        |   | 5,011,000  |         |  | 4.7  |        |  |   | 5,508,000  |   |  | 5.7  |  
|Tax on non-deductible expenses and exempt income  |  |        | (3,825,000 | ) |         | (5.1 | ) |        |   | (1,944,000 | )       |  | (1.8 | )      |  |   | (1,534,000 | ) |  | (1.6 | )
|Purchased In-Process Research & Development       |  |        | 9,803,000  |   |         | 12.9 |   |        |   | 825,000    |         |  | 0.8  |        |  |   |           |   |  |     |  
|Tax contingencies, net                            |  |        | (3,806,000 | ) |         | (5.0 | ) |        |   | 51,000     |         |  |     |        |  |   | 482,000    |   |  | 0.5  |  
|Taxes due to changes in tax rates                 |  |        | (1,123,000 | ) |         | (1.5 | ) |        |   | 199,000    |         |  | 0.2  |        |  |   | (249,000   | ) |  | (0.3 | )
|Other items, net                                  |  |        | (302,000   | ) |         | 0.4  |   |        |   | (9,000     | )       |  | 0.2  |        |  |   | (194,000   | ) |  | 0.2  |  
|                                                  |  |        |            |   |         |      |   |        |   |            |         |  |      |        |  |   |            |   |  |      |  
|Total provision for income taxes                  |  | $      | 25,555,000 |   |         | 33.7 | % |        | $ | 35,529,000 |         |  | 33.5 | %      |  | $ | 35,039,000 |   |  | 36.0 | %
|                                                  |  |        |            |   |         |      |   |        |   |            |         |  |      |        |  |   |            |   |  |      |  

Certain countries benefit from tax holidays which represent a tax exemption period aimed to
attract foreign investment in certain tax jurisdictions. These agreements include programs that reduce up to 100% of taxes in years covered by the agreements. The Companys tax holidays expire at various dates through 2011.

The Company conducts business globally and, as a result, files numerous consolidated and separate income tax returns in The Netherlands, Germany,
Switzerland and the U.S. federal jurisdiction, as well as in various other state and foreign jurisdictions. In the normal course of business, the Company is subject to examination by taxing authorities throughout the world. The Companys tax
years since 2001 are open for income tax examinations by tax authorities. Its subsidiaries with few exceptions are no longer subject to income tax examinations by tax authorities for years before 2004.

In June 2006, the FASB issued Interpretation No. 48 (FIN 48), Accounting for Uncertainty in Income Taxes, an interpretation of SFAS
109. FIN 48 clarifies the accounting for uncertain tax positions. FIN 48 prescribes a comprehensive model for how companies should recognize, measure, present and disclose in their financial statements uncertain tax positions taken or
expected to be taken on a tax return. Under FIN 48, tax benefits shall initially be recognized in the financial statements when it is more likely than not the position will be sustained upon examination by the tax authorities. Such tax positions
shall initially and subsequently be measured as the largest amount of tax benefit that is greater than 50% likely of being realized upon ultimate settlement with the tax authority, assuming full knowledge of the position and all relevant facts. FIN
48 also revises disclosure requirements to include an annual tabular rollforward of unrecognized tax benefits. The provisions of this interpretation are required to be adopted for fiscal periods beginning after December 15, 2006. The Company
adopted this provision beginning January 1, 2007. Net impact due to the adoption of FIN 48 was a $6.1 million decrease to retained earnings.



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##### Table of Contents

QIAGEN N.V. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



A reconciliation of the beginning and ending amount of unrecognized tax benefits is as follows:



|                                                             |  |                         |            |  
|------------------------------------------------------------ |  | ----------------------- | ---------- | -
|                                                             |  | UnrecognizedTaxBenefits |           
|Balance at January 1, 2007                                   |  | $                       | 12,567,000 |  
|Additions based on tax positions related to the current year |  |                         | 728,000    |  
|Additions for tax positions of prior years                   |  |                         | 4,724,000  |  
|Reductions for tax positions of prior years                  |  |                         | (307,000   | )
|Settlements with taxing authorities                          |  |                         | (1,080,000 | )
|Reductions due to lapse of statute of limitations            |  |                         | (8,271,000 | )
|Increase due to acquisitions                                 |  |                         | 1,250,000  |  
|Increase from currency translation                           |  |                         | 883,000    |  
|                                                             |  |                         |            |  
|Balance at December 31, 2007                                 |  | $                       | 10,494,000 |  
|                                                             |  |                         |            |  

At December 31, 2007 and January 1, 2007, the Companys unrecognized tax benefits
totaled approximately $10.5 and $12.6 million, respectively, of which $6.6 million in benefits, if recognized, would favorably affect the Companys effective tax rate in any future period. It is possible that approximately $2.9 million of the
unrecognized tax benefits may be released during the next 12 months due to lapse of statute of limitations or settlements with tax authorities.

The Company recognizes interest accrued related to unrecognized tax benefits in interest expense and penalties within tax provision expense. At the date of adoption of FIN 48, the Company had $1.4 million of accrued interest included in
accrued and other liabilities in the accompanying consolidated balance sheet. At December 31, 2007, the amount of accrued interest decreased to $853,000 with approximately $1.7 million of net interest income and $1.6 million of net
interest expense recognized during 2007.

The Company has recorded net deferred tax liabilities of $134.9 million and $6.0 million at
December 31, 2007 and 2006, respectively which are reflected on the Companys consolidated balance sheets at December 31, 2007 and 2006 as follows:



|                                     |  |      |              |   |      |   |             |  
|------------------------------------ |  | ---- | ------------ | - | ---- | - | ----------- | -
|                                     |  | 2007 |              |   | 2006 |  
|Current deferred tax asset           |  | $    | 23,732,000   |   |      | $ | 18,627,000  |  
|Current deferred tax liabilities     |  |      | (4,903,000   | ) |      |   | (5,360,000  | )
|Non-current deferred tax asset       |  |      | 72,128,000   |   |      |   | 2,409,000   |  
|Non-current deferred tax liabilities |  |      | (225,893,000 | ) |      |   | (21,705,000 | )
|                                     |  |      |              |   |      |   |             |  
|Net deferred tax liabilities         |  | $    | (134,936,000 | ) |      | $ | (6,029,000  | )
|                                     |  |      |              |   |      |   |             |  



F-34



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QIAGEN N.V. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



The components of the net deferred tax liability at December 31, 2007 and 2006 are as follows:



|                                   |  |                    |             |   |                       |   |              |                    |  |   |                       |   |  |   |             |  
|---------------------------------- |  | ------------------ | ----------- | - | --------------------- | - | ------------ | ------------------ |  | - | --------------------- | - |  | - | ----------- | -
|                                   |  | 2007               |             |   | 2006                  |  
|                                   |  | DeferredTax Assets |             |   | DeferredTax Liability |   |              | DeferredTax Assets |  |   | DeferredTax Liability |  
|Net operating loss carry forwards  |  | $                  | 59,389,000  |   |                       | $ |             |                    |  | $ | 20,171,000            |   |  | $ |            |  
|Accrued and other liabilities      |  |                    | 17,375,000  |   |                       |   | (418,000     | )                  |  |   | 4,937,000             |   |  |   | (1,708,000  | )
|Inventories                        |  |                    | 7,434,000   |   |                       |   | (817,000     | )                  |  |   | 5,427,000             |   |  |   | (542,000    | )
|Allowance for bad debts            |  |                    | 795,000     |   |                       |   | (15,000      | )                  |  |   | 625,000               |   |  |   | (221,000    | )
|Currency Revaluation               |  |                    | 531,000     |   |                       |   | (2,384,000   | )                  |  |   |                      |   |  |   | (4,894,000  | )
|Depreciation and amortization      |  |                    | 2,576,000   |   |                       |   | (7,778,000   | )                  |  |   | 288,000               |   |  |   | (9,950,000  | )
|Tax credits and state income taxes |  |                    | 4,396,000   |   |                       |   | (994,000     | )                  |  |   |                      |   |  |   |            |  
|Unremitted profits and earnings    |  |                    |            |   |                       |   | (1,055,000   | )                  |  |   |                      |   |  |   |            |  
|Capital leases                     |  |                    | 674,000     |   |                       |   | (378,000     | )                  |  |   | 749,000               |   |  |   |            |  
|Intangibles                        |  |                    | 1,917,000   |   |                       |   | (204,189,000 | )                  |  |   | 4,767,000             |   |  |   | (15,145,000 | )
|Equity Awards                      |  |                    | 2,418,000   |   |                       |   |             |                    |  |   |                      |   |  |   |            |  
|Other                              |  |                    | 1,348,000   |   |                       |   | (1,356,000   | )                  |  |   | 532,000               |   |  |   | (373,000    | )
|Valuation allowance                |  |                    | (14,405,000 | ) |                       |   |             |                    |  |   | (10,692,000           | ) |  |   |            |  
|                                   |  |                    |             |   |                       |   |              |                    |  |   |                       |   |  |   |             |  
|                                   |  | $                  | 84,448,000  |   |                       | $ | (219,384,000 | )                  |  | $ | 26,804,000            |   |  | $ | (32,833,000 | )
|                                   |  |                    |             |   |                       |   |              |                    |  |   |                       |   |  |   |             |  
|Net deferred tax liabilities       |  |                    |             |   |                       | $ | (134,936,000 | )                  |  |   |                       |   |  | $ | (6,029,000  | )
|                                   |  |                    |             |   |                       |   |              |                    |  |   |                       |   |  |   |             |  

As of December 31, 2006, the Company had net operating loss (NOL) carryforwards in The
Netherlands totaling approximately $7.9 million which were utilized in 2007.

At December 31, 2007, the Company had $129.6 million and
$142.7 million of U.S. federal and state NOL carryforwards, respectively. These amounts include $5.4 million related to deductions for equity awards. These NOLs have, for the most part, been acquired in our recent acquisitions and a portion of
these NOLs are subject to limitations under Section 382 of the Internal Revenue Code. As of December 31, 2007 and 2006, the Company had other foreign carryforwards totaling approximately $39.6 million and $27.0 million, respectively.
These NOLs were primarily generated from acquisitions and operating losses from the Companys subsidiaries. A portion of these NOLs, approximately $19.7 million at December 31, 2007, expire in various years through 2020. The
balance does not expire.

Deferred tax assets as of December 31, 2007 and 2006, relating primarily to net operating loss carryforwards
have been reduced by a valuation allowance of approximately $14.4 million and $10.7 million, respectively, to a net amount that management believes is more likely than not to be realized. During 2007, the valuation allowance related to prior year
deferred tax assets increased by approximately $2.9 million. At December 31, 2007, $13.8 million of the Companys valuation allowance relates to deferred tax assets for which any subsequently recognized tax benefits will reduce goodwill of
an acquired business. To the extent that future valuation allowances are required, the effect of the allowance will be recorded in the provision for income taxes in the period the determination is made.

The Company has undistributed earnings in foreign subsidiaries. Upon repatriation of those earnings, in the form of dividends or otherwise, in some
jurisdictions the Company would be subject to withholding taxes payable to the foreign countries or the receipts would be subject to tax. For those subsidiaries where the earnings are considered to be permanently reinvested, no provision for taxes
has been provided. At December 31, 2007, the Company had deferred income tax liabilities of approximately $1.1 million for taxes that would be payable on the unremitted earnings of certain of the groups subsidiaries. It is not practical
to determine the amount of income tax payable in the event we repatriated all undistributed foreign earnings.



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QIAGEN N.V. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



There are no income tax consequences for the Company regarding payment of dividends to the
shareholders of the Company. To date, the Company has never paid dividends.



|13. | Accrued and Other Liabilities
|--- | -----------------------------

Accrued and other
liabilities at December 31, 2007 and 2006 consist of the following:



|                                                          |  |      |             |      |   |           
|--------------------------------------------------------- |  | ---- | ----------- | ---- | - | ----------
|                                                          |  | 2007 |             | 2006
|Payroll and related accruals                              |  | $    | 29,086,000  |      | $ | 16,376,000
|Royalties                                                 |  |      | 15,720,000  |      |   | 9,392,000 
|Professional and other fees                               |  |      | 9,223,000   |      |   | 1,923,000 
|Deferred revenue                                          |  |      | 8,934,000   |      |   | 6,432,000 
|Accrued interest on long-term debt                        |  |      | 6,560,000   |      |   | 6,467,000 
|Acquisition and related costs                             |  |      | 4,093,000   |      |   | 6,163,000 
|Accrued change in control payments related to acquisition |  |      | 6,741,000   |      |   |          
|Other                                                     |  |      | 23,863,000  |      |   | 19,444,000
|                                                          |  |      |             |      |   |           
|Total accrued liabilities                                 |  | $    | 104,220,000 |      | $ | 66,197,000
|                                                          |  |      |             |      |   |           



|14. | Lines of Credit and Debt
|--- | ------------------------

The Company has seven
separate lines of credit amounting to $165.3 million with variable interest rates, $4,000 of which was utilized at December 31, 2007. There were no short-term borrowings outstanding at December 31, 2007 and 2006.

At December 31, 2007, long-term debt totaled approximately $950.0 million, none of which is current. Long-term debt consists of the following:



|                                                                                                                                                      |  |      |             |      |   |            
|----------------------------------------------------------------------------------------------------------------------------------------------------- |  | ---- | ----------- | ---- | - | -----------
|                                                                                                                                                      |  | 2007 |             | 2006
|$500 million note payable bearing interest at LIBOR plus 0.07%, or 5.545% at December 31, 2007, due on July 12, 2012, with
payments beginning in 2009 |  | $    | 500,000,000 |      | $ |           
|EUR 30.0 million note payable bearing interest at EURIBOR plus 0.75%. Repaid in 2007                                                                  |  |      |            |      |   | 39,592,000 
|EUR 5.0 million note payable bearing interest at EURIBOR plus 0.75%. Repaid in 2007                                                                   |  |      |            |      |   | 6,599,000  
|Notes payable to QIAGEN Euro Finance bearing interest at an effective rate of 4.2% due in November 2012                                               |  |      | 300,000,000 |      |   | 300,000,000
|Notes payable to QIAGEN Finance bearing interest at an effective rate of 1.95% due in July 2011                                                       |  |      | 150,000,000 |      |   | 150,000,000
|                                                                                                                                                      |  |      |             |      |   |            
|Total long-term debt                                                                                                                                  |  |      | 950,000,000 |      |   | 496,191,000
|Less current portion                                                                                                                                  |  |      |            |      |   | 6,599,000  
|                                                                                                                                                      |  |      |             |      |   |            
|Long-term portion                                                                                                                                     |  | $    | 950,000,000 |      | $ | 489,592,000
|                                                                                                                                                      |  |      |             |      |   |            

During 2007 the Company repaid debt of EUR 5.0 million, which was originally due in June
2008, and a note payable of EUR 30.0 million, which was due in annual installments through June 2011.



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QIAGEN N.V. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



On July 13, 2007, the Company signed a Syndicated Multi-Currency Term Loan and Revolving Credit
Facilities Agreement with Deutsche Bank AG, Deutsche Bank Luxembourg S.A., and the lenders named in the agreement. The lenders made available an aggregate amount of $750 million in the form of (1) a $500 million term loan, (2) a $100
million bridge loan, and (3) a $150 million revolving credit facility. Under the agreement, the $500 million term loan will mature in five years from the date of the agreement with an amortization schedule commencing on the second anniversary
of the loan agreement, and the $100 million bridge loan matured in six months from the date of the agreement. The $150 million revolving credit facility expires in five years from the date of the agreement. The proceeds of the debt were loaned to a
subsidiary of QIAGEN N.V., and QIAGEN N.V. has guaranteed the debt. The loan agreements contain certain financial and non-financial covenants, including but not limited to restrictions on the encumbrance of land, restrictions on the transfer of any
patents to third parties and the maintenance of certain financial ratios. The Company was in compliance with these covenants at December 31, 2007.

In August 2004, the Company completed the sale of $150.0 million principal amount of 1.50% convertible unsubordinated notes (Notes) due 2024, through its unconsolidated subsidiary QIAGEN Finance. The net proceeds
of the Notes were loaned by QIAGEN Finance to consolidated subsidiaries in the U.S. and Switzerland. At December 31, 2007 and 2006, $150.0 million is included in long-term debt for the amount of Notes proceeds payable to QIAGEN Finance. These
long-term notes payable to QIAGEN Finance have an effective interest rate of 1.95% and are due in July 2011. Interest on the Notes is payable semi-annually in February and August. The Notes were issued at 100% of principal value, and are convertible
into 11.9 million shares of Common Shares at the option of the holder upon the occurrence of certain events at a price of $12.6449 per share, subject to adjustment. The Notes may be redeemed, in whole or in part, at QIAGENs option on or
after 7 years, at 100% of the principal amount provided the actual trading price of our common stock exceeds 120% of the conversion price for twenty consecutive trading days. In addition, the holders of the Notes may require QIAGEN to repurchase all
or a portion of the Notes for 100% of the principal amount, plus accrued interest, on August 18, 2011, 2014 and 2019. Based on an estimation using available over-the-counter market information on the convertible bond issued by QIAGEN Finance,
the fair value of the Notes at December 31, 2007 was approximately $277.8 million. The Company has reserved the 11.9 million shares of common stock for issuance in the event of conversion.

In May 2006, the Company completed the offering of $300.0 million of 3.25% senior convertible notes (2006 Notes) due in 2026 through a new unconsolidated
subsidiary QIAGEN Euro Finance (Luxembourg) S.A. (Euro Finance). The net proceeds of the 2006 Notes were loaned by Euro Finance to consolidated subsidiaries of the Company. At December 31, 2007 and 2006, $300.0 million is included in long-term
debt for the amount of 2006 Notes proceeds payable to Euro Finance. These long-term notes payable to EUR Finance have an effective interest rate of 4.2% and are due in November 2012. Interest on the 2006 Notes is payable semi-annually in May and
November. The 2006 Notes were issued at 100% of principal value, and are convertible into 15.0 million shares of common stock at the option of the holder upon the occurrence of certain events at a price of $20.00 per share, subject to
adjustment. QIAGEN N.V. has an agreement with Euro Finance to issue shares to the investors in the event of conversion. This subscription right, along with the related receivable, is recorded at fair value in the equity of QIAGEN N.V. as paid-in
capital. The 2006 Notes cannot be called for the first 7 years and are callable thereafter subject to a provisional call trigger of 130% of the conversion price. In addition, the holders of the 2006 Notes may require QIAGEN to repurchase all or a
portion of the outstanding Notes for 100% of the principal amount, plus accrued interest, on May 16, 2013, 2017 and 2022. Based on an estimation using available over-the-counter market information on the convertible bond issued by QIAGEN Euro
Finance, the fair value of the Notes at December 31, 2007 was approximately $395.2 million. The Company has reserved the 15.0 million shares of common stock for issuance in the event of conversion.



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QIAGEN N.V. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



Future principal maturities of long-term debt as of December 31, 2007 are as follows:



|                         |  |   |            
|------------------------ |  | - | -----------
|Year ending December 31, |  |  
|2008                     |  | $ |           
|2009                     |  |   | 25,000,000 
|2010                     |  |   | 50,000,000 
|2011                     |  |   | 225,000,000
|2012                     |  |   | 650,000,000
|                         |  |   |            
|                         |  | $ | 950,000,000
|                         |  |   |            

Interest expense on long-term debt was $29.7 million, $10.6 million and $3.8 million for the years
ended December 31, 2007, 2006 and 2005, respectively.



|15. | Share-Based Compensation
|--- | ------------------------

During 2005, the Company
adopted the QIAGEN N.V. Amended and Restated 2005 Stock Plan (the Plan). The Plan allows for the granting of stock rights and incentive stock options, as well as non-qualified options, stock grants and stock based awards, generally with terms of up
to 10 years, subject to earlier termination in certain situations. Generally, options vest over a three-year period. During 2004 and 2005, the Company accelerated the vesting of certain options. The vesting and exercisability of certain stock rights
will be accelerated in the event of a Change of Control, as defined in the Plan. To date all grants have been at the market value on the grant date or at a premium above the closing market price on the grant date. The Company had approximately
18.1 million shares of common stock reserved and available for issuance under this plan at December 31, 2007.

In connection with
the acquisition of Digene Corporation during the third quarter of 2007, the Company assumed three additional equity incentive plans. No new grants will be made from these plans. The Company had approximately 1.8 million shares of common stock
reserved and available for issuance under these plans at December 31, 2007.

Stock Options

During the years ended December 31, 2007 and 2006, the Company granted 379,598 and 201,500 stock options, respectively. Following are the
weighted-average assumptions used in valuing the stock options granted to employees for the years ended December 31:



|                         |  |      |   |  |      |  
|------------------------ |  | ---- | - |  | ---- | -
|                         |  | 2007 |   |  | 2006 |  
|Stock price volatility   |  | 38   | % |  | 43   | %
|Risk-free interest rate  |  | 4.27 | % |  | 4.74 | %
|Expected life (in years) |  | 5.47 |   |  | 6.00 |  
|Dividend rate            |  | 0    | % |  | 0    | %
|Forfeiture rate          |  | 5    | % |  | 9    | %



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QIAGEN N.V. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



A summary of the status of the Companys employee stock options as of December 31, 2007 and
changes during the year then ended is presented below:



|                                                 |  |                 |   |  |                              |        |                                |      |                         |   |           
|------------------------------------------------ |  | --------------- | - |  | ---------------------------- | ------ | ------------------------------ | ---- | ----------------------- | - | ----------
|All Employee Options                             |  | Number ofShares |   |  | WeightedAverageExercisePrice |        | WeightedAverageContractualTerm |      | AggregateIntrinsicValue
|Outstanding at January 1, 2007                   |  | 11,716,539      |   |  | $                            | 13.427 |                                |      |                         |   |           
|Assumed in acquisition                           |  | 4,139,854       |   |  | $                            | 9.238  |                                |      |                         |   |           
|Granted                                          |  | 379,598         |   |  | $                            | 17.012 |                                |      |                         |   |           
|Exercised                                        |  | (4,551,655      | ) |  | $                            | 9.289  |                                |      |                         |   |           
|Forfeited and cancelled                          |  | (321,695        | ) |  | $                            | 15.162 |                                |      |                         |   |           
|                                                 |  |                 |   |  |                              |        |                                |      |                         |   |           
|Outstanding at December 31, 2007                 |  | 11,362,641      |   |  | $                            | 13.633 |                                | 5.31 |                         | $ | 97,059,373
|                                                 |  |                 |   |  |                              |        |                                |      |                         |   |           
|Exercisable at December 31, 2007                 |  | 10,865,363      |   |  | $                            | 13.494 |                                | 5.14 |                         | $ | 94,879,323
|                                                 |  |                 |   |  |                              |        |                                |      |                         |   |           
|Vested and expected to vest at December 31, 2007 |  | 11,330,389      |   |  | $                            | 13.622 |                                | 0.05 |                         | $ | 96,919,786
|                                                 |  |                 |   |  |                              |        |                                |      |                         |   |           

In connection with the acquisition of Digene Corporation, the Company assumed Digenes equity
plans and exchanged Digenes stock options into 4,139,854 stock options in the Companys common stock.

Stock option grants are
valued as a single award with a single average expected term and are amortized on a straight-line basis over the vesting period. The weighted-average grant-date fair value of options granted during years ended December 31, 2007, 2006 and 2005
was $6.97, $7.52 and $5.82, respectively. The total intrinsic value of options exercised during the years ended December 31, 2007 and 2006 were $42.0 million and $12.0 million, respectively. At December 31, 2007, the unrecognized
share-based compensation expense related to employee stock option awards is approximately $2.5 million and will be recognized over a weighted average period of approximately 1.33 years.

At December 31, 2007, 2006 and 2005, options were exercisable with respect to 10.9 million, 11.5 million and 13.4 million Common
Shares at a weighted average price of $13.49, $13.40 and $12.81 per share, respectively. The options outstanding at December 31, 2007 expire in various years through 2017.

Restricted Stock Units

Restricted stock units represent rights to receive Common Shares at a
future date. There is no exercise price and the fair market value at the time of the grant is amortized to expense on a straight-line basis over the period of vesting. The fair market value is determined based on the number of restricted stock units
granted and the market value of the Companys shares on the grant date. Pre-vesting forfeitures were estimated to be approximately 5.1%. At December 31, 2007, there was $16.9 million remaining in unrecognized compensation cost related to
these awards, which is expected to be recognized over a weighted average period of 3.85 years. The weighted average grant date fair value of restricted stock units granted during the year ended December 31, 2007 was $16.63.



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QIAGEN N.V. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



A summary of the Companys restricted stock units as of December 31, 2007 and changes
during the year are presented below:



|                                                 |  |                       |   |  |                                |  |                         |           
|------------------------------------------------ |  | --------------------- | - |  | ------------------------------ |  | ----------------------- | ----------
|Restricted Stock Units                           |  | Restricted StockUnits |   |  | WeightedAverageContractualTerm |  | AggregateIntrinsicValue
|Outstanding at January 1, 2007                   |  |                      |   |  |                                |  |                         |           
|Granted                                          |  | 864,855               |   |  |                                |  |                         |           
|Assumed in acquisition                           |  | 857,445               |   |  |                                |  |                         |           
|Vested                                           |  | (127,273              | ) |  |                                |  |                         |           
|Forfeited and cancelled                          |  | (9,469                | ) |  |                                |  |                         |           
|                                                 |  |                       |   |  |                                |  |                         |           
|Outstanding at December 31, 2007                 |  | 1,585,558             |   |  | 3.85                           |  | $                       | 33,375,996
|                                                 |  |                       |   |  |                                |  |                         |           
|Vested and expected to vest at December 31, 2007 |  | 1,458,865             |   |  | 2.89                           |  | $                       | 30,709,108
|                                                 |  |                       |   |  |                                |  |                         |           

In connection with the acquisition of Digene Corporation, the Company assumed Digenes equity
plans and exchanged Digenes awards into 857,445 restricted stock units of the Companys common stock.

Compensation Expense

Share-based compensation expense for the years ended December 31, 2007 and 2006 totaled approximately $9.0 million and
$326,000, respectively and the recognized tax benefit related thereto totaled approximately $3.3 million and $112,000, respectively. No share-based compensation cost was capitalized in inventory in 2007 or 2006 as the amounts were not material. The
actual tax benefit realized for the tax deductions of the share-based payment arrangements totaled $9.9 million and $7.4 million, respectively, for the years ended December 31, 2007 and 2006.

Information under SFAS No. 123(R) for Periods Prior to Adoption

The following table illustrates the effect on net income and net income per share if the Company had applied the fair value recognition provisions of SFAS No. 123(R) to equity-based compensation for the year
ended December 31, 2005.



|                                                                                                                                                |  |      |             |  
|----------------------------------------------------------------------------------------------------------------------------------------------- |  | ---- | ----------- | -
|                                                                                                                                                |  | 2005 |            
|Net income, as reported                                                                                                                         |  | $    | 62,225,000  |  
|Deduct: Total stock-based employee compensation expense determined under the fair value based method for all awards, net of related tax
effects |  |      | (13,835,000 | )
|                                                                                                                                                |  |      |             |  
|Pro forma net income                                                                                                                            |  | $    | 48,390,000  |  
|                                                                                                                                                |  |      |             |  
|Earnings per share:                                                                                                                             |  |      |             |  
|Basicas reported                                                                                                                               |  | $    | 0.42        |  
|Basicpro forma                                                                                                                                 |  | $    | 0.33        |  
|Dilutedas reported                                                                                                                             |  | $    | 0.41        |  
|Dilutedpro forma                                                                                                                               |  | $    | 0.32        |  



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QIAGEN N.V. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



Prior to the adoption of SFAS 123(R), the Company presented all tax benefits of deductions resulting
from the exercise of stock options as operating cash flows in the Consolidated Statement of Cash Flows. SFAS 123(R) requires the cash flows resulting from the tax benefits generated from tax deductions in excess of the compensation costs recognized
for those options (excess tax benefits) to be classified as financing cash flows.

During the fourth quarters of 2005 and 2004, and
considering the new accounting implications of SFAS No. 123(R), the Company accelerated the vesting of 1.2 million and 829,000 stock options, respectively. The 2005 acceleration applied to certain in-the-money options and to options held
by Supervisory and Managing Board members. Under the accounting guidance of APB 25 and FASB Interpretation No. 44 Accounting for Certain Transactions Involving Stock CompensationAn Interpretation of APB Opinion No. 25,
the 2005 acceleration of vesting did not result in any compensation expense as these options, after applying an estimate of the termination of services, had a de minimis intrinsic value. The 2004 acceleration applied to stock options that had a
price greater than or equal to the fair market value of the Companys Common Shares (out-of-the-money) as of the close of day that the plan was approved by the Supervisory Board, or $10.62. The accelerated options were given a sales
restriction, such that any shares held through the exercise of an accelerated option could not be sold, prior to the original vesting date. Under the accounting guidance of APB 25, the 2004 acceleration of vesting did not result in any compensation
expense as these options had no intrinsic value. The accelerations, however, allowed the Company to avoid recording approximately $2.8 million, after tax, of future compensation expense that would have been required to be recognized under SFAS
No. 123(R). Upon adoption of SFAS No. 123(R) on January 1, 2006, the Company did not have any stock-based compensation expense from these accelerated options. The Supervisory Board took the action based on its belief that it is in the
best interest of the Companys shareholders and the Company as it will reduce reported compensation expense in future periods. The Company has worked with equity based compensation plan experts to evaluate its stock-based compensation plans and
incentive strategies in light of the provisions of SFAS No. 123(R). The Companys aim is to implement an equity based compensation plan structure that will give employees a long-term incentive arrangement while minimizing compensation
expense.



|16. | Commitments and Contingencies
|--- | -----------------------------

Lease Commitments

The Company leases facilities and equipment under operating lease arrangements expiring in various years through 2016. Certain rental
commitments provide for escalating rental payments or have renewal options extending through various years. Certain facility and equipment leases constitute capital leases expiring in various years through 2018. The accompanying consolidated
financial statements include the assets and liabilities arising from these capital lease obligations. Rent expense under operating lease agreements was $9.8 million, $9.1 million and $7.5 million for the years ended December 31, 2007, 2006 and
2005, respectively.



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QIAGEN N.V. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



Minimum future obligations under capital and operating leases at December 31, 2007 are as
follows:



|                                   |  |                |             |   |                 |   |           
|---------------------------------- |  | -------------- | ----------- | - | --------------- | - | ----------
|                                   |  | Capital Leases |             |   | OperatingLeases
|2008                               |  | $              | 4,952,000   |   |                 | $ | 8,940,000 
|2009                               |  |                | 4,952,000   |   |                 |   | 5,872,000 
|2010                               |  |                | 4,953,000   |   |                 |   | 4,116,000 
|2011                               |  |                | 4,985,000   |   |                 |   | 2,845,000 
|2012                               |  |                | 5,055,000   |   |                 |   | 1,584,000 
|Thereafter                         |  |                | 22,883,000  |   |                 |   | 3,144,000 
|                                   |  |                |             |   |                 |   |           
|                                   |  |                | 47,780,000  |   |                 | $ | 26,501,000
|                                   |  |                |             |   |                 |   |           
|Less: Amount representing interest |  |                | (11,994,000 | ) |                 |   |           
|                                   |  |                |             |   |                 |   |           
|                                   |  |                | 35,786,000  |   |                 |   |           
|Less: Current portion              |  |                | (2,769,000  | ) |                 |   |           
|                                   |  |                |             |   |                 |   |           
|Long-term portion                  |  | $              | 33,017,000  |   |                 |   |           
|                                   |  |                |             |   |                 |   |           

Licensing and Purchase Commitments

The Company has licensing agreements with companies, universities and individuals, some of which require certain up-front payments. Royalty payments are
required on net product sales ranging from one to 20 percent of covered products or based on quantities sold. Several of these agreements have minimum royalty requirements. The accompanying consolidated financial statements include accrued royalties
relating to these agreements in the amount of $15.7 million and $9.4 million at December 31, 2007 and 2006, respectively. Royalty expense relating to these agreements amounted to $37.1 million, $24.0 million and $21.8 million for the years
ended December 31, 2007, 2006 and 2005, respectively. Royalty expense is primarily recorded in cost of sales, with a small portion recorded as research and development expense depending on the use of the technology under license. Some of these
agreements also have minimum raw material purchase requirements and requirements to perform specific types of research.

At
December 31, 2007, the Company had commitments to purchase certain products, and for future minimum guaranteed royalties. They are as follows:



|           |  |                     |            |                    |   |           
|---------- |  | ------------------- | ---------- | ------------------ | - | ----------
|           |  | PurchaseCommitments |            | RoyaltyCommitments
|2008       |  | $                   | 26,366,000 |                    | $ | 4,368,000 
|2009       |  |                     | 5,751,000  |                    |   | 4,451,000 
|2010       |  |                     | 190,000    |                    |   | 1,046,000 
|2011       |  |                     | 190,000    |                    |   | 611,000   
|2012       |  |                     | 190,000    |                    |   | 458,000   
|Thereafter |  |                     | 1,402,000  |                    |   | 842,000   
|           |  |                     |            |                    |   |           
|           |  | $                   | 34,089,000 |                    | $ | 11,776,000
|           |  |                     |            |                    |   |           

Contingent Consideration Commitments

Pursuant to the purchase agreements for certain acquisitions, as discussed more fully in Note 4, the Company could be required to make additional
contingent cash payments totaling up to $27.1 million based on



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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



the achievement of certain revenue and operating results milestones as follows: $10.1 million in 2008, $4.0 million in 2009, and $12.0 million payable in any
12 month period from now until 2010 if revenues exceed a certain amount and $1.0 million payable upon the grant of certain patent rights.

Employment Agreements

Certain of our employment contracts contain provisions which guarantee the payments of certain
amounts in the event of a change in control, as defined, or if the executive is terminated for reasons other than cause, as defined in those agreements. At December 31, 2007, the commitment under these agreements totaled $15.3 million.

Contingencies

In the
ordinary course of business, the Company warrants to customers that its products are free of defect and will conform to published specifications. Generally, the applicable product warranty period is one year from the date of delivery of the product
to the customer or of site acceptance, if required. Additionally, the Company typically provides limited warranties with respect to its services. From time to time, the Company also makes other warranties to customers, including warranties that its
products are manufactured in accordance with applicable laws and not in violation of third party rights. The Company provides for estimated warranty costs at the time of the product sale. The Company believes its warranty reserves as of
December 31, 2007 and 2006 appropriately reflect the estimated cost of such warranty obligations.

Litigation

From time to time, the Company may be party to legal proceedings incidental to its business. As of December 31, 2007, certain claims, suits or legal
proceedings arising out of the normal course of business have been filed or were pending against the Company or its subsidiaries. These matters have arisen in the ordinary course and conduct of the Companys business, as well as through
acquisition.

As a result of the acquisition of Digene, the Company is now involved in various claims and legal proceedings of a nature
considered normal to the business including protection of its owned and licensed intellectual property. Although it is not possible to predict the outcome of such litigation, based on the facts known to the Company and after consultation with legal
counsel, management believes that such litigation will not have a material adverse effect on its financial position or results of operations.

Digene Corporation v. Third Wave Technologies, Inc.

On January 11, 2007, Digene filed a patent infringement
action against Third Wave Technologies, Inc. (Third Wave) in the United States District Court for the Western District of Wisconsin. In this action, Digene alleges that Third Wave is infringing one or more claims of United States Patent
No. 5,643,715 (the 715 patent), of which Digene is the exclusive licensee. On February 28, 2007, Third Wave filed an answer to Digenes complaint, in which Third Wave denied infringing the claims of the 715 patent. Third
Wave further asserted counterclaims against Digene alleging violations of federal antitrust laws pursuant to Sections 1 and 2 of the Sherman Act, the Clayton Act, and the Robinson-Patman Act. In response, on April 5, 2007, Digene filed a reply
denying all of Third Waves counter claims. A claim construction hearing was held on June 22, 2007 and the court issued two opinions construing the asserted claims. In light of the courts construction of the claims at issue, Digene
believes that it cannot meaningfully pursue its infringement action against Third Wave at the district court level. On October 19, 2007, Digene filed a Motion for Summary Judgment, seeking judgment against Third Waves antitrust
claims. The Court granted Digenes Motion on January 11, 2008, dismissing all of



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QIAGEN N.V. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



Third Waves antitrust counterclaims. On February 25, 2008, Third Wave withdrew the only remaining claim on the issue of exceptional case. The Court
entered final judgment on February 29, 2008. Both QIAGEN and Third Wave have filed separate appeals to the Federal Circuit. QIAGEN expects its opening brief to be due on May 13, 2008. QIAGEN intends to vigorously pursue its patent infringement claim
on appeal, and defend itself against any appeal by Third Wave.

Digene Corporation v. Ventana Medical Systems, Inc. and Beckman
Coulter, Inc.

On November 19, 2001, Digene filed a patent infringement action against Ventana Medical Systems, Inc. (Ventana)
in the United States District Court for the District of Delaware. Digene alleged that Ventana infringed one or more claims of United States Patent No. 4,849,331 (the 331 patent) and United States Patent No. 4,849,332 (the 332
patent). On September 25, 2002, Ventana publicly announced the acquisition of Beckman Coulter, Inc.s (Beckman) human Papillomavirus business. On December 10, 2002, Beckman was added as a co-defendant in the infringement action.
Subsequently, Beckman filed a motion seeking to compel arbitration and the court granted its request. As a matter of judicial economy, the Court stayed the proceedings against Ventana pending the outcome of the arbitration between Digene and
Beckman. On July 27, 2006, an American Arbitration Association (AAA) panel upheld Digenes contractual rights relating to various HPV materials and intellectual property. The AAA panel further found that Beckmans sale of certain HPV
materials and its attempted assignment of certain HPV patent rights to Ventana was impermissible.

On August 10, 2006, Digene filed a
motion to lift the stay of the proceedings against Ventana. The Court granted this motion on August 15, 2006. On August 26, 2006, Digene filed a motion for preliminary injunction to enjoin Ventana from making, using, offering for sale,
selling, licensing or otherwise distributing products which infringe the claims of the 332 patent. A hearing on Digenes motion for preliminary injunction was held on February 22, 2007, and on May 9, 2007, that motion was
denied. The Court, however, noted that there remained a substantial question as to whether Ventana had a license from Beckman to the relevant HPV patents. On June 12, 2007, the court dismissed Beckman from Digenes patent infringement
action against Ventana. Despite the fact that the patents at issue in this litigation expired in May and June 2007, the patent infringement litigation against Ventana was continued, and trial was set to begin on December 17, 2007.

On October 15, 2007 the parties filed a stipulation of partial dismissal as to Counts III, V, VI, and VII of the Second Amended
Complaint. The court entered the order on the same date. The litigation with Ventana proceeded based upon patent infringement of Digenes 331 and 332 patents (HPV 35). However, on December 15, 2007, the parties agreed to
terms of a mutual settlement of all claims to be finalized on or before December 31, 2007. A stipulation of dismissal was filed with the Court on January 4, 2008 and the case was officially closed on the same day.

Digene Corporation v. F. Hoffmann-LaRoche Ltd. and Roche Molecular Systems, Inc.

There is a pending arbitration filed by Digene against F. Hoffmann-LaRoche Ltd. and Roche Molecular Systems, Inc. (collectively Roche) in December of
2006 for breach of contract of a 1990 Cross License Agreement between Digene and Roche for rights to certain HPV patents. Digene claims that Roche has breached this license agreement by entering into an alleged Supply and Purchase Agreement
with Gen-Probe, Inc. (Gen-Probe) in violation of the terms of the Cross License Agreement which has a prohibition against further sublicensing. On July 13, 2007, the arbitration Panel granted Gen-Probes request to intervene as a
respondent in the arbitration. On August 27, 2007, Digene filed its First Amended Demand for Arbitration to include claims against both Roche and Gen-Probe. Thereafter, on September 6, 2007 both Roche and Gen-Probe filed
their

Statement of Defense denying the allegations and asserting counterclaims against Digene. Roche alleges that



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QIAGEN N.V. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



Digene interfered with its business relations and violated Digenes duties of good faith and fair dealing owed to Roche under the license agreement by
bringing this lawsuit. Digene has denied Roches claims while asserting Roches counterclaims fail to state a cause of action. Gen-Probe contends that the Purchase and Supply Agreement with Roche is not made invalid by the
prohibition on sublicenses contained in the Digene/Roche Cross License Agreement. The parties have served discovery requests (requests for production of documents and things). The parties are evaluating discovery and following up on supplementation
of requests.

On October 13, 2007, Roche and Gen-Probe filed a Motion for Summary Judgment (the Motion) alleging that the Purchase and
Supply Agreement with Roche does not violate the CLA and that they are entitled to judgment as a matter of law. QIAGEN filed its response to the Motion on November 30, 2007 and a hearing was held on January 17, 2008 in New York. On
January 29, 2008, the Panel denied that motion and found that genuine issues of material fact exist with respect to each of the claims on which Roche and Gen-Probe sought summary disposition. On February 29, 2008, QIAGEN filed a motion
requesting leave to file a Second Amended Arbitration Demand adding two new causes of action against Roche. Digenes new counts relate to a claim that Roche intentionally interfered with Digenes business relationship with Gen-Probe and a
Declaration of Rights declaring that Roche does not have the rights in the 1990 Cross License it purports to have because the transaction in which Roche allegedly obtained those rights was invalid. On March 11, 2008, Gen-Probe filed its own motion
to Amend its Statement of Defense and Counterclaims seeking to change the caption of the case to reflect Digenes merger with QIAGEN and to add QIAGEN as a party to the arbitration. Both motions are currently being briefed and no decision has
been rendered as of this date. The trial before the panel is scheduled for October 27, 2008, to November 14, 2008. QIAGEN intends to vigorously pursue this case.



|17. | Employee Benefit Plans
|--- | ----------------------

The Company maintains
various benefit plans, including defined contribution and defined benefit plans. The Companys U.S. defined contribution plan is qualified under Section 401(k) of the Internal Revenue Code, and covers substantially all U.S. employees.
Participants may contribute a portion of their compensation not exceeding a limit set annually by the Internal Revenue Service. This plan includes a provision for the Company to match a portion of employee contributions. Total expense under the
401(k) plans, including the plan acquired with the acquisition of Digene Corporation, was $1.4 million, $881,000 and $782,000 for the years ended December 31, 2007, 2006 and 2005, respectively. The Company also has a defined contribution plan
which covers certain executives. The Company makes matching contributions up to an established maximum. In 2007, 2006 and 2005, matching contributions to the plan totaled approximately $390,000, $295,000 and $82,000, respectively.

The Company has four defined benefit, non-contributory retirement or termination plans that cover certain employees in Germany, France, Japan and Italy.
These defined benefit plans provide benefits to covered individuals satisfying certain age and service requirements. For certain plans, the Company calculates the vested benefits to which employees are entitled if they separate immediately, in
compliance with the Emerging Issues Task Force Issue No. 88-21, Determination of Vested Benefit Pension Plan (EITF 88-1). The benefits accrued on a pro-rata basis during the employees employment period are based on the
individuals salaries, adjusted for inflation. The liability under the defined benefit plans was $2.2 million at December 31, 2007 and $2.0 million at December 31, 2006. The adoption of SFAS No. 158 resulted in an
increase to the pension liability of $333,000, deferred taxes of $129,000, and an increase in the loss of accumulated other comprehensive income of $204,000 in the consolidated balance sheet for the year ending December 31, 2006.



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QIAGEN N.V. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



|18. | Related Party Transactions
|--- | --------------------------

From time to time, the
Company has transactions with companies in which the Company holds an interest all of which are individually and in aggregate immaterial except for certain transactions with the joint venture PreAnalytiX, Operon Biotechnologies, Inc., QIAGEN Finance
and QIAGEN Euro Finance.

The Company has a 50% interest in a joint venture company, PreAnalytiX GmbH, which is accounted for under the
equity method. During 2005, the loans of both joint venture partners were converted to additional capital and each joint venture partner made an additional investment of approximately $2.9 million. As of December 31, 2007 and 2006, the Company
had accounts receivable from PreAnalytix of $670,000 and $20,000, and accounts payable to PreAnalytix of $116,000 and $219,000, respectively.

The Company has a 100% interest in QIAGEN Finance (Luxembourg) S.A. (QIAGEN Finance) and QIAGEN Euro Finance (Luxembourg) S.A. (Euro Finance), which were established for the purpose of issuing convertible debt. As discussed in Note 10,
QIAGEN Finance and Euro Finance are variable interest entities with no primary beneficiary, thus they are not consolidated. Accordingly, the convertible debt is not included in the consolidated statements of QIAGEN N.V., though QIAGEN N.V. does
report the full obligation of the debt through its liabilities to QIAGEN Finance and Euro Finance. As of December 31, 2007 and 2006, the Company had loans payable to QIAGEN Finance of $150.0 million, amounts due to QIAGEN Finance of $3.4
million and amounts receivable from QIAGEN Finance of $2.4 million and $2.9 million, respectively. As of December 31, 2007 and 2006, the Company has a loan payable to Euro Finance of $300.0 million amounts due to Euro Finance of $3.0 million
and amounts receivable from Euro Finance of $1.7 million and $1.9 million, respectively.

In 2004, QIAGEN entered into a consulting
agreement with Dr. Metin Colpan, the Companys former Chief Executive Officer and current Supervisory Board member, pursuant to which Dr. Colpan shall be paid a fee of EUR 2,750 per day for consulting services, subject to
adjustment. During 2007 and 2006 the Company paid approximately $471,000 and $524,000, respectively, to Dr. Colpan for scientific consulting services under this agreement.



|19. | Segment and Related Information
|--- | -------------------------------

The Company
manages its business based on the locations of its subsidiaries. Therefore, reportable segments are based on the geographic locations of the subsidiaries. In 2006, considering recent acquisitions, the Company revised its segment presentation. The
Companys reportable segments include the Companys production, manufacturing and sales facilities located throughout the world. In addition, the Companys Corporate segment includes its holding company located in The Netherlands and
two subsidiaries located in Germany which operate only in a corporate support function. The reportable segments derive revenues from the Companys entire product and service offerings. It is not practicable to provide a detail of revenues for
each group of similar products and services offered by the Company.

The Company evaluates performance based on several factors, of which
the primary financial measure is operating income. The accounting policies of the segments are the same as those described in the summary of significant accounting policies in Note 2 of the Notes to Consolidated Financial Statements.



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QIAGEN N.V. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



Summarized financial information concerning the Companys reportable segments is shown in the
following tables:



|                         |  |      |               |   |      |   |              |      |  |   |              |  
|------------------------ |  | ---- | ------------- | - | ---- | - | ------------ | ---- |  | - | ------------ | -
|                         |  | 2007 |               |   | 2006 |   |              | 2005 | 
|Net Sales                |  |      |               |   |      |   |              |      |  |   |              |  
|North America            |  | $    | 465,878,000   |   |      | $ | 318,865,000  |      |  | $ | 285,242,000  |  
|Germany                  |  |      | 270,173,000   |   |      |   | 220,325,000  |      |  |   | 187,381,000  |  
|Switzerland              |  |      | 56,615,000    |   |      |   | 40,044,000   |      |  |   | 36,957,000   |  
|Asia                     |  |      | 71,168,000    |   |      |   | 49,875,000   |      |  |   | 35,266,000   |  
|Rest of World            |  |      | 148,082,000   |   |      |   | 109,025,000  |      |  |   | 88,924,000   |  
|Corporate                |  |      | 350,000       |   |      |   | 525,000      |      |  |   | 985,000      |  
|                         |  |      |               |   |      |   |              |      |  |   |              |  
|Subtotal                 |  |      | 1,012,266,000 |   |      |   | 738,659,000  |      |  |   | 634,755,000  |  
|Intersegment Elimination |  |      | (362,492,000  | ) |      |   | (272,881,000 | )    |  |   | (236,360,000 | )
|                         |  |      |               |   |      |   |              |      |  |   |              |  
|Total                    |  | $    | 649,774,000   |   |      | $ | 465,778,000  |      |  | $ | 398,395,000  |  
|                         |  |      |               |   |      |   |              |      |  |   |              |  

Net sales are attributed to countries based on the location of the Companys subsidiary.
During 2007, 2006 and 2005, no single customer represented more than ten percent of consolidated net sales.



|                   |  |      |              |   |      |   |              |      |  |   |              |  
|------------------ |  | ---- | ------------ | - | ---- | - | ------------ | ---- |  | - | ------------ | -
|                   |  | 2007 |              |   | 2006 |   |              | 2005 | 
|Intersegment Sales |  |      |              |   |      |   |              |      |  |   |              |  
|North America      |  | $    | (155,052,000 | ) |      | $ | (115,924,000 | )    |  | $ | (103,357,000 | )
|Germany            |  |      | (162,149,000 | ) |      |   | (129,438,000 | )    |  |   | (107,882,000 | )
|Switzerland        |  |      | (42,637,000  | ) |      |   | (26,518,000  | )    |  |   | (25,058,000  | )
|Asia               |  |      | (1,876,000   | ) |      |   | (784,000     | )    |  |   |             |  
|Rest of World      |  |      | (778,000     | ) |      |   | (188,000     | )    |  |   | (15,000      | )
|Corporate          |  |      |             |   |      |   | (29,000      | )    |  |   | (48,000      | )
|                   |  |      |              |   |      |   |              |      |  |   |              |  
|Total              |  | $    | (362,492,000 | ) |      | $ | (272,881,000 | )    |  | $ | (236,360,000 | )
|                   |  |      |              |   |      |   |              |      |  |   |              |  

All intersegment sales are accounted for by a formula based on local list prices and manufacturing
costs and eliminated in consolidation.



|                         |  |      |             |   |      |   |             |      |  |   |            |  
|------------------------ |  | ---- | ----------- | - | ---- | - | ----------- | ---- |  | - | ---------- | -
|                         |  | 2007 |             |   | 2006 |   |             | 2005 | 
|Operating Income (Loss)  |  |      |             |   |      |   |             |      |  |   |            |  
|North America            |  | $    | 14,605,000  |   |      | $ | 31,414,000  |      |  | $ | 36,095,000 |  
|Germany                  |  |      | 63,769,000  |   |      |   | 53,956,000  |      |  |   | 43,279,000 |  
|Switzerland              |  |      | (391,000    | ) |      |   | (1,558,000  | )    |  |   | (305,000   | )
|Asia                     |  |      | 5,941,000   |   |      |   | 8,302,000   |      |  |   | 7,182,000  |  
|Rest of World            |  |      | 21,922,000  |   |      |   | 15,594,000  |      |  |   | 14,136,000 |  
|Corporate                |  |      | (20,051,000 | ) |      |   | (6,550,000  | )    |  |   | (3,959,000 | )
|                         |  |      |             |   |      |   |             |      |  |   |            |  
|Subtotal                 |  |      | 85,795,000  |   |      |   | 101,158,000 |      |  |   | 96,428,000 |  
|Intersegment Elimination |  |      | (2,662,000  | ) |      |   | (557,000    | )    |  |   | (1,591,000 | )
|                         |  |      |             |   |      |   |             |      |  |   |            |  
|Total                    |  | $    | 83,133,000  |   |      | $ | 100,601,000 |      |  | $ | 94,837,000 |  
|                         |  |      |             |   |      |   |             |      |  |   |            |  

The Corporate component of operating income (loss) is primarily general and administrative
expenses and share-based compensation costs. The intersegment elimination represents primarily the elimination of intercompany profit.



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QIAGEN N.V. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



|                              |  |      |            |      |   |            |  |   |           
|----------------------------- |  | ---- | ---------- | ---- | - | ---------- |  | - | ----------
|                              |  | 2007 |            | 2006 |   | 2005      
|Depreciation and Amortization |  |      |            |      |   |            |  |   |           
|North America                 |  | $    | 34,274,000 |      | $ | 10,074,000 |  | $ | 6,538,000 
|Germany                       |  |      | 20,186,000 |      |   | 14,070,000 |  |   | 13,829,000
|Switzerland                   |  |      | 2,653,000  |      |   | 1,638,000  |  |   | 1,753,000 
|Asia                          |  |      | 2,512,000  |      |   | 1,626,000  |  |   | 231,000   
|Rest of World                 |  |      | 2,373,000  |      |   | 1,850,000  |  |   | 1,641,000 
|Corporate                     |  |      | 585,000    |      |   | 780,000    |  |   | 963,000   
|                              |  |      |            |      |   |            |  |   |           
|Total                         |  | $    | 62,583,000 |      | $ | 30,038,000 |  | $ | 24,955,000
|                              |  |      |            |      |   |            |  |   |           



|                         |  |      |                |   |      |   |                |  
|------------------------ |  | ---- | -------------- | - | ---- | - | -------------- | -
|                         |  | 2007 |                |   | 2006 |  
|Assets                   |  |      |                |   |      |   |                |  
|North America            |  | $    | 2,122,875,000  |   |      | $ | 313,599,000    |  
|Germany                  |  |      | 459,761,000    |   |      |   | 352,173,000    |  
|Switzerland              |  |      | 97,730,000     |   |      |   | 93,134,000     |  
|Asia                     |  |      | 80,987,000     |   |      |   | 71,580,000     |  
|Rest of World            |  |      | 119,470,000    |   |      |   | 103,205,000    |  
|Corporate                |  |      | 1,862,963,000  |   |      |   | 1,360,732,000  |  
|                         |  |      |                |   |      |   |                |  
|Subtotal                 |  |      | 4,743,786,000  |   |      |   | 2,294,423,000  |  
|Intersegment Elimination |  |      | (1,968,612,000 | ) |      |   | (1,082,411,000 | )
|                         |  |      |                |   |      |   |                |  
|Total                    |  | $    | 2,775,174,000  |   |      | $ | 1,212,012,000  |  
|                         |  |      |                |   |      |   |                |  

Assets of Corporate include cash and cash equivalents, investments, prepaid assets and certain
intangibles. The intersegment elimination represents intercompany investments and advances.

At December 31, 2007 and 2006, for
Switzerland, the net investment in equity method investees was $4.6 million and $2.6 million, respectively. The Netherlands had a net investment in equity method investees of $2.0 million and $963,000 as of December 31, 2007 and 2006,
respectively.



|                     |  |      |            |      |   |            |  |   |           
|-------------------- |  | ---- | ---------- | ---- | - | ---------- |  | - | ----------
|                     |  | 2007 |            | 2006 |   | 2005      
|Capital Expenditures |  |      |            |      |   |            |  |   |           
|North America        |  | $    | 6,381,000  |      | $ | 4,206,000  |  | $ | 3,258,000 
|Germany              |  |      | 19,938,000 |      |   | 20,638,000 |  |   | 8,093,000 
|Switzerland          |  |      | 3,445,000  |      |   | 2,211,000  |  |   | 1,468,000 
|Asia                 |  |      | 2,875,000  |      |   | 804,000    |  |   | 232,000   
|Rest of World        |  |      | 1,822,000  |      |   | 1,130,000  |  |   | 671,000   
|Corporate            |  |      | 31,000     |      |   | 6,000      |  |   | 6,000     
|                     |  |      |            |      |   |            |  |   |           
|Total                |  | $    | 34,492,000 |      | $ | 28,995,000 |  | $ | 13,728,000
|                     |  |      |            |      |   |            |  |   |           



|                  |  |      |               |      |   |            
|----------------- |  | ---- | ------------- | ---- | - | -----------
|                  |  | 2007 |               | 2006
|Long-Lived Assets |  |      |               |      |   |            
|North America     |  | $    | 1,653,244,000 |      | $ | 189,680,000
|Germany           |  |      | 303,097,000   |      |   | 245,818,000
|Switzerland       |  |      | 12,191,000    |      |   | 9,293,000  
|Asia              |  |      | 33,237,000    |      |   | 30,627,000 
|Rest of World     |  |      | 45,817,000    |      |   | 38,843,000 
|Corporate         |  |      | 7,514,000     |      |   | 12,151,000 
|                  |  |      |               |      |   |            
|Total             |  | $    | 2,055,100,000 |      | $ | 526,412,000
|                  |  |      |               |      |   |            



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##### Table of Contents

SCHEDULE II

QIAGEN N.V. AND SUBSIDIARIES

SCHEDULE IIVALUATION AND QUALIFYING ACCOUNTS

FOR THE YEARS ENDED
DECEMBER 31, 2007, 2006 AND 2005



|                                |  |                            |           |                            |   |            |  |   |                          |   |  |                       |         |   |  |   |          
|------------------------------- |  | -------------------------- | --------- | -------------------------- | - | ---------- |  | - | ------------------------ | - |  | --------------------- | ------- | - |  | - | ---------
|                                |  | Balance atBeginning ofYear |           | ProvisionCharged toExpense |   | Write-Offs |  |   | ForeignExchangeand Other |   |  | Balance atEnd of Year
|Year Ended December 31, 2005:   |  |                            |           |                            |   |            |  |   |                          |   |  |                       |         |   |  |   |          
|Allowance for doubtful accounts |  | $                          | 2,647,000 |                            | $ | 54,000     |  | $ | (620,000                 | ) |  | $                     | 307,000 |   |  | $ | 2,388,000
|Year Ended December 31, 2006:   |  |                            |           |                            |   |            |  |   |                          |   |  |                       |         |   |  |   |          
|Allowance for doubtful accounts |  | $                          | 2,388,000 |                            | $ | 378,000    |  | $ | (333,000                 | ) |  | $                     | 175,000 |   |  | $ | 2,608,000
|Year Ended December 31, 2007:   |  |                            |           |                            |   |            |  |   |                          |   |  |                       |         |   |  |   |          
|Allowance for doubtful accounts |  | $                          | 2,608,000 |                            | $ | 1,807,000  |  | $ | (1,062,000               | ) |  | $                     | (9,000  | ) |  | $ | 3,344,000



S-1