Document:

EX-10.2

 [ * ] = Certain confidential information contained in this document, marked by brackets, has been omitted
and filed separately with the Securities and Exchange Commission pursuant to Rule 24b-2 of the Securities Exchange Act of 1934, as amended. 
 Exhibit 10.2 
 Volume Discount Program Addendum 

This Volume Discount Program Addendum to the Purchase Agreement (the “Addendum”) is effective as of August 20, 2012 (the
“Addendum Effective Date”), by and between diaDexus, Inc. (“diaDexus”), and Atherotech Diagnostics Lab located at 201 London Parkway, Birmingham, AL 35211 and any or all of its subsidiaries or affiliates (“Lab”).

 WHEREAS, Lab and diaDexus are parties to that certain Purchase Agreement dated August 20, 2012 (the
“Agreement”); 
 WHEREAS, the parties desire to amend such Agreement to make available to Lab a limited term volume
discount program as set forth below (the “Program”). 
 NOW THEREFORE, in consideration of the agreements, mutual
representations and covenants contained herein and for other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties hereby agree: 
 1.         Definitions. All capitalized terms not defined herein shall have the meaning assigned to them in the Agreement. 

2.         Program. Lab shall order Products as set forth in the Agreement. Beginning on the Addendum
Effective Date, as set forth in the Shipment Volume and Pricing Table below Lab shall receive special Product pricing based on the [ * ]. Lab may [ * ] and [ * ]. 

Shipment Volume and Pricing Table 
  

							
		 	 	 	  

 
 PLAC®
 Test

Product
	 	                [ * ]
		 	 	 	 ELISA Kit 

(# 90123)
	 	

 As an example and for clarification purposes only: Assume [ * ]. diaDexus
will [ * ]. If [ * ], diaDexus will [ * ]. 
 Shipment volume discounts for Products
are [ * ]. Temporary shipping schedule changes (e.g. accommodation for holidays or company closure) agreed to by diaDexus and Lab will not modify the Product shipment volume pricing and Lab shall pay for Products as if they were shipped
according to [ * ], regardless if [ * ] due to the temporary shipping schedule change. 

3.         Addendum Term. This Addendum begins on the Addendum Effective Date and shall terminate upon
termination of the Agreement (the “Addendum Term”). 
 4.         Entire Agreement. In
the event of any conflict between the terms and conditions of this Addendum and the Agreement, the terms and conditions of this Addendum shall control. Except as otherwise provided in the Addendum, the parties agree that all provisions of the
Agreement are hereby ratified and agreed to be in full force and effect and are incorporated herein by reference. This Addendum and the Agreement (as amended hereby), including without limitation all addenda, contain the entire agreement among the
parties relating to the subject matter herein and all prior proposals, discussions and writings by and among the parties and relating to the subject matter herein, whether written or oral, are superseded hereby and thereby. None of the terms of this
Addendum shall be deemed to be amended unless such amendment is in writing, signed by all parties hereto, and recites specifically that it is an amendment to the terms of this Addendum. 
 IN WITNESS WHEREOF, the parties hereto have caused this Addendum to be executed by their fully authorized representatives. 
  

					
		 	Atherotech Diagnostics Lab	  	diaDexus, Inc.
			
		 	 By: /s/ Robert Shufflebarger
	  	 By: /s/ Brian E Ward

			
		 	 Name: Robert Shufflebarger
	  	 Name: Brian E Ward

			
		 	 Title: Chief Operating Officer
	  	 Title: President & CEO

			
		 	 Date: 8/20/12
	  	 Date: 8/23/12EX-10.3

 [ * ] = Certain confidential information contained in this document, marked by brackets, has been
omitted and filed separately with the Securities and Exchange Commission pursuant to Rule 24b-2 of the Securities Exchange Act of 1934, as amended. 
 Exhibit 10.3 
  
 diaDexus, Inc. 
 AMENDED AND RESTATED LOAN AND SECURITY AGREEMENT

 This AMENDED AND RESTATED LOAN AND SECURITY AGREEMENT (this “Agreement”) is entered into as of
September 11, 2012, by and between Comerica Bank (“Bank”) and diaDexus, Inc. (“Borrower”). 

RECITALS 
 Borrower and
Bank are parties to that certain Loan and Security Agreement dated as of September 23, 2011 (as amended from time to time, the “Original Agreement”). Borrower and Bank wish to amend and restate the terms of the Original Agreement.
This Agreement sets forth the terms on which Bank will advance credit to Borrower, and Borrower will repay the amounts owing to Bank. 
 AGREEMENT 
 The parties agree as follows: 

1. DEFINITIONS AND CONSTRUCTION. 
 1.1 Definitions. As used in this Agreement, all capitalized terms shall have the definitions set forth on Exhibit A. Any term used in the Code and not defined herein shall have the meaning given to
the term in the Code. 
 1.2 Accounting Terms. Any accounting term not specifically defined on Exhibit A shall be
construed in accordance with GAAP and all calculations shall be made in accordance with GAAP. The term “financial statements” shall include the accompanying notes and schedules. 

2. LOAN AND TERMS OF PAYMENT. 
 2.1 Credit Extensions. 
 (a) Promise to Pay. Borrower promises to
pay to Bank, in lawful money of the United States of America, the aggregate unpaid principal amount of all Credit Extensions made by Bank to Borrower, together with interest on the unpaid principal amount of such Credit Extensions at rates in
accordance with the terms hereof. 
 (b) Growth Capital Advances. 

(i) Subject to and upon the terms and conditions of this Agreement, Bank agrees to make one (1) Growth Capital Advance to Borrower,
on the Closing Date. The aggregate outstanding amount of Growth Capital Advance shall not exceed the Growth Capital Line. The proceeds of the Growth Capital Advance shall be used to satisfy in full the Obligations under the Original Agreement;
provided that, no Prepayment Fee or Final Payment (as defined in the Original Agreement) shall be payable in connection with the satisfaction of such Obligations. 
 (ii) Interest shall accrue from the date of the Growth Capital Advance at the rate specified in Section 2.2(a), and shall be payable in accordance with Section 2.2(c). Any part of the Growth
Capital Advance that is outstanding on Growth Capital Interest Only End Date shall be payable in thirty six (36) equal monthly installments of principal, plus all accrued interest, on the basis of a forty-eight (48) month straight line
amortization, beginning on the 23rd day of the first month after the Growth Capital Interest Only End Date, and continuing on the same day of each month thereafter through the Growth Capital Maturity Date, when all Obligations under this Agreement
shall be due and payable in full. The Growth Capital Advance, once repaid, may not be reborrowed. Borrower may prepay the Growth Capital Advance only in accordance with Sections 2.1(b)(iv) and (v) of this Agreement. 

  

					
		 	1	 	September 11, 2012

 [ * ] = Certain
confidential information contained in this document, marked by brackets, has been omitted and filed separately with the Securities and Exchange Commission pursuant to Rule 24b-2 of the Securities Exchange Act of 1934, as amended. 

 (iii) Borrower shall provide Bank a completed advance request form substantially in the
form of Exhibit C attached hereto (which notice shall be irrevocable) by facsimile transmission to be received no later than 3:00 p.m. Pacific time three (3) Business Days before the Closing Date. The notice shall be signed by a
Responsible Officer or its designee and include a copy of the invoice for any Equipment to be financed. Bank shall be entitled to rely on any facsimile or telephonic notice given by a person who Bank reasonably believes to be a Responsible Officer
or a designee thereof, and Borrower shall indemnify and hold Bank harmless for any damages or loss suffered by Bank as a result of such reliance. 
 (iv) If the Growth Capital Advance is accelerated following the occurrence of an Event of Default, Borrower shall immediately pay to Bank an amount equal to the sum of: (i) all outstanding principal
of the Growth Capital Advance plus accrued but unpaid interest thereon through the prepayment date, (ii) the Final Payment, (iii) the Prepayment Fee (if then due hereunder), plus (iv) all other sums, that shall have become due and
payable, including Bank Expenses and interest at the default rate with respect to any past due amounts. Notwithstanding (but without duplication with) the foregoing, on the Growth Capital Maturity Date, if the Final Payment had not previously been
paid in full in connection with the prepayment of the Growth Capital Advance in full, Borrower shall pay to Bank, the Final Payment in respect of the Growth Capital Advance. 
 (v) Borrower shall have the option to prepay all, but not less than all, of the Growth Capital Advance advanced by Bank under this Agreement, provided Borrower (i) provides written notice to Bank of
its election to prepay the Growth Capital Advance at least thirty (30) days prior to such prepayment, and (ii) pays to Bank on the date of such prepayment an amount equal to the sum of (A) all outstanding principal of the Growth
Capital Advance plus accrued but unpaid interest thereon through the prepayment date, (B) the Final Payment, (C) the Prepayment Fee (if then due hereunder), plus (D) all other sums, that shall have become due and payable but have not
been paid, including Bank Expenses, if any, and interest at the default rate with respect to any past due amounts. 
 (vi)
Borrower hereby waives any rights under section 2954.10 of the California Civil Code or successor statute, with respect to any prepayment (or similar) costs, fees and or penalties due or to become due and or payable hereunder. 

2.2 Interest Rates, Payments, and Calculations. 
 (a) Interest Rate. Except as set forth in Section 2.2(b), the Growth Capital Advances shall bear interest, on the outstanding daily balance thereof, at a fixed per annum rate equal to five and
one quarter percent (5.25%). 
 (b) Late Fee; Default Rate. If any payment is not made within 10 days after the date
such payment is due, Borrower shall pay Bank a late fee equal to the lesser of (i) five percent (5%) of the amount of such unpaid amount or (ii) the maximum amount permitted to be charged under applicable law. All Obligations shall
bear interest, from and after the occurrence and during the continuance of an Event of Default, at a rate equal to five (5) percentage points above the interest rate applicable immediately prior to the occurrence of the Event of Default.

 (c) Payments. Interest hereunder shall be due and payable on the 23rd calendar day of each month during the term
hereof. Bank shall, at its option, charge such interest, all Bank Expenses, and all Periodic Payments against any of Borrower’s deposit accounts. Any interest not paid when due shall be compounded by becoming a part of the Obligations, and such
interest shall thereafter accrue interest at the rate then applicable hereunder. 
 (d) Computation. All interest
chargeable under the Loan Documents shall be computed on the basis of a three hundred sixty (360) day year for the actual number of days elapsed. 

  

					
		 	2	 	September 11, 2012

 [ * ] = Certain
confidential information contained in this document, marked by brackets, has been omitted and filed separately with the Securities and Exchange Commission pursuant to Rule 24b-2 of the Securities Exchange Act of 1934, as amended. 

 2.3 Crediting Payments. Prior to the occurrence of an Event of Default, Bank shall
credit a wire transfer of funds, check or other item of payment to such deposit account or Obligation as Borrower specifies. After the occurrence of an Event of Default, Bank shall have the right, in its sole discretion, to immediately apply any
wire transfer of funds, check, or other item of payment Bank may receive to conditionally reduce Obligations, but such applications of funds shall not be considered a payment on account unless such payment is of immediately available federal funds
or unless and until such check or other item of payment is honored when presented for payment. Notwithstanding anything to the contrary contained herein, any wire transfer or payment received by Bank after 12:00 noon Pacific time shall be deemed to
have been received by Bank as of the opening of business on the immediately following Business Day. Whenever any payment to Bank under the Loan Documents would otherwise be due (except by reason of acceleration) on a date that is not a Business Day,
such payment shall instead be due on the next Business Day, and additional fees or interest, as the case may be, shall accrue and be payable for the period of such extension. 
 2.4 Fees. Borrower shall pay to Bank the following: 
 (a) Facility
Fee. On the Closing Date, a fee equal to Fifty Thousand Dollars ($50,000), receipt of which hereby is acknowledged by Bank; 
 (b) Prepayment Fee. The Prepayment Fee, if and when due; 
 (c) Final
Payment. The Final Payment, when due; and 
 (d) Bank Expenses. On the Closing Date, all Bank Expenses incurred
through the Closing Date, and, after the Closing Date, all Bank Expenses, as and when they become due. 
 2.5 Term. This
Agreement shall become effective on the Closing Date and, subject to Section 13.8, shall continue in full force and effect for so long as any Obligations remain outstanding or Bank has any obligation to make Credit Extensions under this
Agreement. Notwithstanding the foregoing, Bank shall have the right to terminate its obligation to make Credit Extensions under this Agreement immediately and without notice upon the occurrence and during the continuance of an Event of Default.

 3. CONDITIONS OF LOANS. 
 3.1 Conditions Precedent to Initial Credit Extension. The obligation of Bank to make the initial Credit Extension is subject to the condition precedent that Bank shall have received, in form and
substance satisfactory to Bank, the following: 
 (a) this Agreement, duly executed by Borrower; 

(b) an officer’s certificate of Borrower with respect to incumbency and resolutions authorizing the execution and delivery of this
Agreement; 
 (c) UCC National Form Financing Statement; 

(d) agreement to furnish insurance; 
 (e) payment of the Bank Expenses then due specified in Section 2.4; 
 (f)
current SOS Reports indicating that except for Permitted Liens, there are no other security interests or Liens of record in the Collateral; 

  

					
		 	3	 	September 11, 2012

 [ * ] = Certain
confidential information contained in this document, marked by brackets, has been omitted and filed separately with the Securities and Exchange Commission pursuant to Rule 24b-2 of the Securities Exchange Act of 1934, as amended. 

 (g) current financial statements, including audited statements for Borrower’s most
recently ended fiscal year, together with an unqualified opinion, company prepared consolidated balance sheets and income statements for the most recently ended month in accordance with Section 6.2, and such other updated financial information
as Bank may reasonably request; 
 (h) current Compliance Certificate in accordance with Section 6.2; 

(i) a Warrant in form and substance satisfactory to Bank; 
 (j) a Collateral Information Certificate; 
 (k) subject to Section 6.6,
securities and/or deposit account control agreements with respect to any accounts permitted hereunder to be maintained outside Bank; 
 (l) an Automatic Debit Authorization; and 
 (m) such other documents or
certificates, and completion of such other matters, as Bank may reasonably deem necessary or appropriate. 
 3.2 Conditions
Precedent to all Credit Extensions. The obligation of Bank to make each Credit Extension, including the initial Credit Extension, is further subject to the following conditions: the representations and warranties contained in Article 5 shall be
true and correct in all material respects on and as of the date of such Payment/Advance Form and on the effective date of each Credit Extension as though made at and as of each such date, and no Event of Default shall have occurred and be
continuing, or would exist after giving effect to such Credit Extension (provided, however, that those representations and warranties expressly referring to another date shall be true, correct and complete in all material respects as of such date).
The making of each Credit Extension shall be deemed to be a representation and warranty by Borrower on the date of such Credit Extension as to the accuracy of the facts referred to in this Section 3.2. 

4. CREATION OF SECURITY INTEREST. 
 4.1 Grant of Security Interest. Borrower grants and pledges to Bank a continuing security interest in the Collateral to secure prompt repayment of any and all Obligations and to secure prompt
performance by Borrower of each of its covenants and duties under the Loan Documents. Except as set forth in the Schedule, such security interest constitutes a valid, first priority security interest in the presently existing Collateral, and will
constitute a valid, first priority security interest in later-acquired Collateral. Borrower also hereby agrees not to sell, transfer, assign, mortgage, pledge, lease, grant a security interest in, or encumber any of its Intellectual Property, except
in connection with Permitted Liens and Permitted Transfers. Notwithstanding any termination of this Agreement, Bank’s Lien on the Collateral shall remain in effect for so long as any Obligations are outstanding. 

4.2 Perfection of Security Interest. Borrower authorizes Bank to file at any time financing statements, continuation statements,
and amendments thereto that (i) either specifically describe the Collateral or describe the Collateral as all assets of Borrower of the kind pledged hereunder, and (ii) contain any other information required by the Code for the sufficiency
of filing office acceptance of any financing statement, continuation statement, or amendment, including whether Borrower is an organization, the type of organization and any organizational identification number issued to Borrower, if applicable. Any
such financing statements may be filed by Bank at any time in any jurisdiction whether or not Revised Article 9 of the Code is then in effect in that jurisdiction. Borrower shall from time to time endorse and deliver to Bank, at the request of Bank,
all Negotiable Collateral and other documents that Bank may reasonably request, in form satisfactory to Bank, to perfect and continue perfection of Bank’s security interests in the Collateral and in order to fully consummate all of the
transactions contemplated under the Loan Documents. Borrower shall have possession of the Collateral, except where expressly otherwise provided in this Agreement or where Bank chooses to perfect its security interest by

  

					
		 	4	 	September 11, 2012

 [ * ] = Certain
confidential information contained in this document, marked by brackets, has been omitted and filed separately with the Securities and Exchange Commission pursuant to Rule 24b-2 of the Securities Exchange Act of 1934, as amended. 

 
possession in addition to the filing of a financing statement. Where Collateral is in possession of a third party bailee, Borrower shall take such steps as Bank reasonably requests for Bank to
(i) obtain an acknowledgment, in form and substance satisfactory to Bank, of the bailee that the bailee holds such Collateral for the benefit of Bank, and (ii) obtain “control” of any Collateral consisting of investment property,
deposit accounts, letter-of-credit rights or electronic chattel paper (as such items and the term “control” are defined in Revised Article 9 of the Code) by causing the securities intermediary or depositary institution or issuing bank to
execute a control agreement in form and substance satisfactory to Bank. Borrower will not create any chattel paper without placing a legend on the chattel paper acceptable to Bank indicating that Bank has a security interest in the chattel paper.
Borrower from time to time may deposit with Bank specific cash collateral to secure specific Obligations; Borrower authorizes Bank to hold such specific balances in pledge and to decline to honor any drafts thereon or any request by Borrower or any
other Person to pay or otherwise transfer any part of such balances for so long as the specific Obligations are outstanding. 

4.3 Right to Inspect. Bank (through any of its officers, employees, or agents) shall have the right, upon reasonable prior notice,
from time to time during Borrower’s usual business hours but no more than twice a year (unless an Event of Default has occurred and is continuing), to inspect Borrower’s Books and to make copies thereof and to check, test, and appraise the
Collateral in order to verify Borrower’s financial condition or the amount, condition of, or any other matter relating to, the Collateral. 
 5. REPRESENTATIONS AND WARRANTIES. 
 Borrower represents and warrants as
follows: 
 5.1 Due Organization and Qualification. Borrower and each Subsidiary is an entity duly existing under the
laws of the jurisdiction in which it is organized and qualified and licensed to do business in any state in which the conduct of its business or its ownership of property requires that it be so qualified, except where the failure to do so could not
reasonably be expected to cause a Material Adverse Effect. 
 5.2 Due Authorization; No Conflict. The execution,
delivery, and performance of the Loan Documents are within Borrower’s powers, have been duly authorized, and are not in conflict with nor constitute a breach of any provision contained in Borrower’s organizational documents, nor will they
constitute an event of default under any material agreement by which Borrower is bound. Borrower is not in default under any agreement by which it is bound, except to the extent such default would not reasonably be expected to cause a Material
Adverse Effect. 
 5.3 Collateral. Borrower has rights in or the power to transfer the Collateral, and its title to the
Collateral is free and clear of Liens, adverse claims, and restrictions on transfer or pledge except for Permitted Liens. All Collateral (other than (x) movable items of personal property (such as laptop computers) having an aggregate book
value not to exceed Fifty Thousand Dollars ($50,000) at any time and (y) laboratory Equipment having an aggregate book value not to exceed Two Hundred Thousand Dollars ($200,000) at any single location) is located solely in the Collateral
States. All Inventory is in all material respects of good and merchantable quality, free from all material defects, except for Inventory for which adequate reserves have been made. Except as set forth in the Schedule, none of the Collateral is
maintained or invested with a Person other than Bank or Bank’s Affiliates. 
 5.4 Intellectual Property. Borrower is
the sole owner of Borrower’s owned Intellectual Property, except for licenses granted by Borrower to its customers in the ordinary course of business. To the best of Borrower’s knowledge, each of the Copyrights, Trademarks and Patents is
valid and enforceable, and no part of the Intellectual Property has been judged invalid or unenforceable, in whole or in part, and no claim has been made to Borrower that any part of the Intellectual Property violates the rights of any third party
except to the extent such claim could not reasonably be expected to cause a Material Adverse Effect. 

  

					
		 	5	 	September 11, 2012

 [ * ] = Certain
confidential information contained in this document, marked by brackets, has been omitted and filed separately with the Securities and Exchange Commission pursuant to Rule 24b-2 of the Securities Exchange Act of 1934, as amended. 

 5.5 Name; Location of Chief Executive Office. Except as disclosed in the Schedule,
Borrower has not done business under any name other than that specified on the signature page hereof, and its exact legal name is as set forth in the first paragraph of this Agreement. The chief executive office of Borrower is located in the Chief
Executive Office State at the address indicated in Section 10 hereof. 
 5.6 Actions, Suits, Litigation, or
Proceedings. Except as set forth in the Schedule, there are no actions, suits, litigation or proceedings, at law or in equity, pending by or against Borrower or any Subsidiary before any court, administrative agency, or arbitrator in which a
likely adverse decision could reasonably be expected to have a Material Adverse Effect. 
 5.7 No Material Adverse Change in
Financial Statements. All consolidated and consolidating financial statements related to Borrower and any Subsidiary that are delivered by Borrower to Bank fairly present in all material respects Borrower’s consolidated and consolidating
financial condition as of the date thereof and Borrower’s consolidated and consolidating results of operations for the period then ended. There has not been a material adverse change in the consolidated or in the consolidating financial
condition of Borrower since the date of the most recent of such financial statements submitted to Bank. 
 5.8 Solvency,
Payment of Debts. Borrower is able to pay its debts (including trade debts) as they mature; the fair saleable value of Borrower’s assets (including goodwill minus disposition costs) exceeds the fair value of its liabilities; and Borrower is
not left with unreasonably small capital after the transactions contemplated by this Agreement. 
 5.9 Compliance with Laws
and Regulations. Borrower and each Subsidiary have met the minimum funding requirements of ERISA with respect to any employee benefit plans subject to ERISA. No event has occurred resulting from Borrower’s failure to comply with ERISA that
is reasonably likely to result in Borrower’s incurring any liability that could reasonably be expected to have a Material Adverse Effect. Borrower is not an “investment company” or a company “controlled” by an
“investment company” within the meaning of the Investment Company Act of 1940. Borrower is not engaged principally, or as one of the important activities, in the business of extending credit for the purpose of purchasing or carrying margin
stock (within the meaning of Regulations T and U of the Board of Governors of the Federal Reserve System). Borrower has complied in all material respects with all the provisions of the Federal Fair Labor Standards Act. Borrower is in compliance with
all environmental laws, regulations and ordinances except where the failure to comply is not reasonably likely to have a Material Adverse Effect. Borrower has not violated any statutes, laws, ordinances or rules applicable to it, the violation of
which could reasonably be expected to have a Material Adverse Effect. Borrower and each Subsidiary have filed or caused to be filed all tax returns required to be filed, and have paid, or have made adequate provision for the payment of, all taxes
reflected therein except those being contested in good faith with adequate reserves under GAAP or where the failure to file such returns or pay such taxes could not reasonably be expected to have a Material Adverse Effect. 

5.10 Subsidiaries. Borrower does not own any stock, partnership interest or other equity securities of any Person, except for
Permitted Investments. 
 5.11 Government Consents. Borrower and each Subsidiary have obtained all consents, approvals
and authorizations of, made all declarations or filings with, and given all notices to, all governmental authorities that are necessary for the continued operation of Borrower’s business as currently conducted, except where the failure to do so
would not reasonably be expected to cause a Material Adverse Effect. 
 5.12 Inbound Licenses. Except as disclosed on the
Schedule, Borrower is not a party to, nor is bound by, any inbound license or other agreement, the failure, breach, or termination of which could reasonably be expected to cause a Material Adverse Effect, or that prohibits or otherwise restricts
Borrower from granting a security interest, to the extent contemplated by this Agreement, in Borrower’s interest in such license or agreement or any other property. 

  

					
		 	6	 	September 11, 2012

 [ * ] = Certain
confidential information contained in this document, marked by brackets, has been omitted and filed separately with the Securities and Exchange Commission pursuant to Rule 24b-2 of the Securities Exchange Act of 1934, as amended. 

 5.13 Full Disclosure. No representation, warranty or other statement made by Borrower
in any certificate or written statement furnished to Bank taken together with all such certificates and written statements furnished to Bank contains any untrue statement of a material fact or omits to state a material fact necessary in order to
make the statements contained in such certificates or statements not misleading, it being recognized by Bank that the projections and forecasts provided by Borrower in good faith and based upon reasonable assumptions are not to be viewed as facts
and that actual results during the period or periods covered by any such projections and forecasts may differ from the projected or forecasted results. 
 6. AFFIRMATIVE COVENANTS. 
 Borrower covenants that, until payment in full
of all outstanding Obligations, and for so long as Bank may have any commitment to make a Credit Extension hereunder, Borrower shall do all of the following: 
 6.1 Good Standing and Government Compliance. Borrower shall maintain its and each of its Subsidiaries’ organizational existence and good standing in the Borrower State, shall maintain
qualification and good standing in each other jurisdiction in which the failure to so qualify could reasonably be expected to have a Material Adverse Effect, and shall furnish to Bank the organizational identification number issued to Borrower by
the authorities of the jurisdiction in which Borrower is organized, if applicable. Borrower shall meet, and shall cause each Subsidiary to meet, the minimum funding requirements of ERISA with respect to any employee benefit plans subject to ERISA.
Borrower shall comply in all material respects with all applicable Environmental Laws, and maintain all material permits, licenses and approvals required thereunder where the failure to do so could reasonably be expected to have a Material Adverse
Effect. Borrower shall comply, and shall cause each Subsidiary to comply, with all statutes, laws, ordinances and government rules and regulations to which it is subject, and shall maintain, and shall cause each of its Subsidiaries to maintain, in
force all licenses, approvals and agreements, the loss of which or failure to comply with which would reasonably be expected to have a Material Adverse Effect. 
 6.2 Financial Statements, Reports, Certificates. Borrower shall deliver to Bank: (i) as soon as available, but in any event within (x) thirty (30) days after the end of each calendar
month, and (y) forty-five (45) days after the end of each calendar quarter, a company prepared consolidated (and, if and when Borrower creates or acquires any Subsidiaries, consolidating) balance sheet and income statement covering
Borrower’s operations during such period, in a form reasonably acceptable to Bank and certified by a Responsible Officer; (ii) as soon as available, but in any event within one hundred twenty (120) days after the end of
Borrower’s fiscal year, audited consolidated (and, if and when Borrower creates or acquires any Subsidiaries, consolidating) financial statements of Borrower prepared in accordance with GAAP, consistently applied, together with an opinion which
is unqualified (or qualified only based upon a lack of twelve (12) months’ cash) or otherwise consented to in writing by Bank on such financial statements of PriceWaterhouse Coopers or such other independent certified public accounting
firm reasonably acceptable to Bank; (iii) if applicable, copies of all statements, reports and notices sent or made available generally by Borrower to its security holders or to any holders of Subordinated Debt and all reports on Forms 10-K and
10-Q filed with the Securities and Exchange Commission; (iv) promptly upon receipt of notice thereof, a report of any legal actions pending or threatened against Borrower or any Subsidiary that could result in damages or costs to Borrower or
any Subsidiary of One Hundred Thousand Dollars ($100,000) or more; (v) promptly upon receipt in final form, each management letter prepared by Borrower’s independent certified public accounting firm regarding Borrower’s management
control systems; (vi) as soon as available, but in any event not later than January 31 of each calendar year, Borrower’s financial and business projections and budget for such year, with evidence of approval thereof by Borrower’s
board of directors; and (vii) such budgets, sales projections, operating plans or other financial information generally prepared by Borrower in the ordinary course of business as Bank may reasonably request from time to time. 

(a) Within thirty (30) days after the last day of each month, Borrower shall deliver to Bank a Compliance Certificate certified as
of the last day of the applicable month and signed by a Responsible Officer in substantially the form of Exhibit D hereto. 

  

					
		 	7	 	September 11, 2012

 [ * ] = Certain
confidential information contained in this document, marked by brackets, has been omitted and filed separately with the Securities and Exchange Commission pursuant to Rule 24b-2 of the Securities Exchange Act of 1934, as amended. 

 (b) Immediately upon becoming aware of the occurrence or existence of an Event of Default
hereunder, a written statement of a Responsible Officer setting forth details of the Event of Default, and the action which Borrower has taken or proposes to take with respect thereto. 

(c) Bank shall have a right from time to time hereafter to audit Borrower’s Accounts and appraise Collateral at Borrower’s
expense, provided that such audits will be conducted no more often than every six (6) months unless an Event of Default has occurred and is continuing. 
 Borrower may deliver to Bank on an electronic basis any certificates, reports or information required pursuant to this Section 6.2, and Bank shall be entitled to rely on the information contained in
the electronic files, provided that Bank in good faith believes that the files were delivered by a Responsible Officer. If Borrower delivers this information electronically, it shall also deliver to Bank by U.S. Mail, reputable overnight courier
service, hand delivery, facsimile or .pdf file within five (5) Business Days of submission of the unsigned electronic copy the certification of monthly financial statements, and the Compliance Certificate, each bearing the physical signature of
the Responsible Officer. 
 6.3 Inventory; Returns. Borrower shall keep all Inventory in good and merchantable condition,
free from all material defects except for Inventory for which adequate reserves have been made. Returns and allowances, if any, as between Borrower and its account debtors shall be on the same basis and in accordance with the usual customary
practices of Borrower, as they exist on the Closing Date. Borrower shall promptly notify Bank of all returns and recoveries and of all disputes and claims involving more than One Hundred Thousand Dollars ($100,000). 

6.4 Taxes. Borrower shall make, and cause each Subsidiary to make, due and timely payment or deposit of all material federal,
state, and local taxes, assessments, or contributions required of it by law, including, but not limited to, those laws concerning income taxes, F.I.C.A., F.U.T.A. and state disability, and will execute and deliver to Bank, on demand, proof
satisfactory to Bank indicating that Borrower or a Subsidiary has made such payments or deposits and any appropriate certificates attesting to the payment or deposit thereof; provided that Borrower or a Subsidiary need not make any payment if the
amount or validity of such payment is contested in good faith by appropriate proceedings and is reserved against (to the extent required by GAAP) by Borrower. 
 6.5 Insurance. 
 (a) Borrower, at its expense, shall keep the Collateral
insured against loss or damage by fire, theft, explosion, sprinklers, and all other hazards and risks, and in such amounts, as ordinarily insured against by other owners in similar businesses conducted in the locations where Borrower’s business
is conducted on the date hereof. Borrower shall also maintain liability and other insurance in amounts and of a type that are customary to businesses similar to Borrower’s. 

(b) All such policies of insurance shall be in such form, with such companies, and in such amounts as reasonably satisfactory to Bank.
All policies of property insurance shall contain a lender’s loss payable endorsement, in a form satisfactory to Bank, showing Bank as an additional loss payee, and all liability insurance policies shall show Bank as an additional insured and
specify that the insurer must give at least twenty (20) days notice to Bank before canceling its policy for any reason. Upon Bank’s request, Borrower shall deliver to Bank certified copies of the policies of insurance and evidence of all
premium payments. If no Event of Default has occurred and is continuing, proceeds payable under any casualty policy will, at Borrower’s option, be payable to Borrower to replace the property subject to the claim, provided that any such
replacement property shall be deemed Collateral in which Bank has been granted a first priority security interest. If an Event of Default has occurred and is continuing, all proceeds payable under any such policy shall, at Bank’s option, be
payable to Bank to be applied on account of the Obligations. 

  

					
		 	8	 	September 11, 2012

 [ * ] = Certain
confidential information contained in this document, marked by brackets, has been omitted and filed separately with the Securities and Exchange Commission pursuant to Rule 24b-2 of the Securities Exchange Act of 1934, as amended. 

 6.6 Accounts. Borrower shall maintain its primary depository and operating accounts
with Bank and at least eighty percent (80%) of the dollar value of Borrower’s investment accounts with Bank or Bank’s Affiliates; provided that all accounts permitted hereunder to be maintained outside Bank shall, within thirty
(30) days of the Closing Date, be (i) closed and the balances therein transferred to accounts with Bank or Bank’s Affiliates, or (ii) subject to control agreements in form and content reasonably acceptable to Bank.
Notwithstanding the foregoing, with respect to Borrower’s account with Silicon Valley Bank, ending in 6022 (the “SVB Account”), Borrower shall (x) close the SVB Account on or before December 31, 2012, (y) transfer all
amounts therein to an account with Bank, and (z) not be required to deliver to Bank a control agreement with respect thereto unless such account remains open after December 31, 2012. 

6.7 Financial Covenants. Borrower shall at all times maintain the following financial ratios and covenants: 

(a) Performance to Plan. Revenues shall be at least eighty percent (80%) of the monthly projections that have been approved
by Borrower’s Board of Directors and attached as Annex I to the Schedule hereto, calculated on a trailing three (3) month basis. Borrower shall deliver to Bank updated projections approved by Borrower’s Board of Directors for the next
fiscal year not more than thirty (30) days following the end of Borrower’s current fiscal year. 
 6.8 Registration
of Intellectual Property Rights. 
 (a) Borrower shall register or cause to be registered on an expedited basis (to the
extent not already registered) with the United States Patent and Trademark Office or the United States Copyright Office, as the case may be, those registrable intellectual property rights now owned or hereafter developed or acquired by Borrower, to
the extent that Borrower, in its reasonable business judgment, deems it appropriate to so protect such intellectual property rights. 
 (b) Borrower shall give Bank prompt written notice of any applications or registrations of intellectual property rights filed with the United States Patent and Trademark Office and United States Copyright
Office, including the date of such filing and the registration or application numbers, if any. 
 (c) Borrower shall give Bank
prompt written notice of the filing of any applications or registrations with the United States Copyright Office, including the title of such intellectual property rights to be registered, as such title will appear on such applications or
registrations, and the date such applications or registrations will be filed. 
 (d) Borrower shall use commercially reasonable
efforts to (i) protect, defend and maintain the validity and enforceability of the Trademarks, Patents, Copyrights, and trade secrets, (ii) detect infringements of the Trademarks, Patents and Copyrights and promptly advise Bank in writing
of material infringements detected and (iii) not allow any material Trademarks, Patents or Copyrights to be abandoned, forfeited or dedicated to the public without the written consent of Bank, which shall not be unreasonably withheld.

 6.9 Consent of Inbound Licensors. Prior to entering into or becoming bound by any inbound license or agreement (other
than over-the-counter software that is commercially available to the public), the failure, breach, or termination of which could reasonably be expected to cause a Material Adverse Effect, Borrower shall in good faith take commercially reasonable
actions to obtain the consent of, or waiver by, any person whose consent or waiver is necessary for (A) Borrower’s interest in such licenses or contract rights to be deemed Collateral and for Bank to have a security interest in it that
might otherwise be restricted by the terms of the applicable license or agreement, whether now existing or entered into in the future, and (B) Bank to have the ability in the event of a liquidation of any Collateral to dispose of such
Collateral in accordance with Bank’s rights and remedies under this Agreement and the other Loan Documents, provided, however, that the failure to obtain any such consent or waiver shall not constitute a default under this Agreement.

  

					
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confidential information contained in this document, marked by brackets, has been omitted and filed separately with the Securities and Exchange Commission pursuant to Rule 24b-2 of the Securities Exchange Act of 1934, as amended. 

 6.10 Creation/Acquisition of Subsidiaries. In the event Borrower or any Subsidiary
creates or acquires any Subsidiary, Borrower and such Subsidiary shall promptly notify Bank of the creation or acquisition of such new Subsidiary and take all such action as may be reasonably required by Bank to cause each such domestic Subsidiary
to guarantee the Obligations of Borrower under the Loan Documents and grant a continuing pledge and security interest in and to the collateral of such Subsidiary (substantially as described on Exhibit B hereto), and Borrower shall grant and
pledge to Bank a perfected security interest in the stock, units or other evidence of ownership of each Subsidiary (whether foreign or domestic). 
 6.11 Further Assurances. At any time and from time to time Borrower shall execute and deliver such further instruments and take such further action as may reasonably be requested by Bank to effect
the purposes of this Agreement. 
 7. NEGATIVE COVENANTS. 

Borrower covenants and agrees that, so long as any credit hereunder shall be available and until the outstanding Obligations are paid in
full or for so long as Bank may have any commitment to make any Credit Extensions, Borrower will not do any of the following without Bank’s prior written consent, which shall not be unreasonably withheld: 

7.1 Dispositions. Convey, sell, lease, license, transfer or otherwise dispose of (collectively, to “Transfer”), or
permit any of its Subsidiaries to Transfer, all or any part of its business or property, or subject to Section 6.6 of the Agreement, move cash balances on deposit with Bank to accounts opened at another financial institution, other than
Permitted Transfers. 
 7.2 Change in Name, Location, Executive Office, or Executive Management; Change in Business; Change
in Fiscal Year. Change its name or the Borrower State or relocate its chief executive office without thirty (30) days prior written notification to Bank; Borrower’s chief executive officer or chief financial officer shall cease to be
actively engaged in the management of Borrower unless a replacement for such officer is approved by Borrower’s Board of Directors and engaged by Borrower within ninety (90) days of such change; engage in any business, or permit any of its
Subsidiaries to engage in any business, other than or reasonably related or incidental to the businesses currently engaged in by Borrower; change its fiscal year end. 
 7.3 Mergers or Acquisitions. Merge or consolidate, or permit any of its Subsidiaries to merge or consolidate, with or into any other business organization (other than mergers or consolidations of a
Subsidiary into another Subsidiary or into Borrower), or acquire, or permit any of its Subsidiaries to acquire, all or substantially all of the capital stock or property of another Person, or enter into any agreement to do any of the same, except
where (i) such transactions do not in the aggregate exceed One Hundred Thousand Dollars ($100,000) during any fiscal year, (ii) no Event of Default has occurred, is continuing or would exist after giving effect to such transactions,
(iii) such transactions do not result in a Change in Control, and (iv) Borrower is the surviving entity. 
 7.4
Indebtedness. Create, incur, assume, guarantee or be or remain liable with respect to any Indebtedness, or permit any Subsidiary so to do, other than Permitted Indebtedness, or prepay any Indebtedness or take any actions which impose on
Borrower an obligation to prepay any Indebtedness, except Indebtedness to Bank. 
 7.5 Encumbrances. Create, incur,
assume or allow any Lien with respect to any of its property, or assign or otherwise convey any right to receive income, including the sale of any Accounts, or permit any of its Subsidiaries so to do, except for Permitted Liens, or covenant to any
other Person that Borrower in the future will refrain from creating, incurring, assuming or allowing any Lien with respect to any of Borrower’s property. 
 7.6 Distributions. Pay any dividends or make any other distribution or payment on account of or in redemption, retirement or purchase of any capital stock, except that Borrower may
(i) repurchase the stock 

  

					
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confidential information contained in this document, marked by brackets, has been omitted and filed separately with the Securities and Exchange Commission pursuant to Rule 24b-2 of the Securities Exchange Act of 1934, as amended. 

 
of former employees pursuant to stock repurchase agreements as long as an Event of Default does not exist prior to such repurchase or would not exist after giving effect to such repurchase, and
(ii) repurchase the stock of former employees pursuant to stock repurchase agreements by the cancellation of indebtedness owed by such former employees to Borrower regardless of whether an Event of Default exists. 

7.7 Investments. Directly or indirectly acquire or own, or make any Investment in or to any Person, or permit any of its
Subsidiaries to do so, other than Permitted Investments, or maintain or invest any of its property with a Person other than Bank or Bank’s Affiliates or permit any Subsidiary to do so unless such Person has entered into a control agreement with
Bank, in form and substance satisfactory to Bank, or suffer or permit any Subsidiary to be a party to, or be bound by, an agreement that restricts such Subsidiary from paying dividends or otherwise distributing property to Borrower. Further,
Borrower shall not enter into any license or agreement with any Prohibited Territory or with any Person organized under or doing business in a Prohibited Territory. 
 7.8 Transactions with Affiliates. Directly or indirectly enter into or permit to exist any material transaction with any Affiliate of Borrower except for transactions that are in the ordinary
course of Borrower’s business, upon fair and reasonable terms that are no less favorable to Borrower than would be obtained in an arm’s length transaction with a non-affiliated Person. 

7.9 Subordinated Debt. Make any payment in respect of any Subordinated Debt, or permit any of its Subsidiaries to make any such
payment, except in compliance with the terms of such Subordinated Debt and the terms of the subordination agreement relating to such Subordinated Debt, or amend any provision of any document evidencing such Subordinated Debt, except in compliance
with the terms of the subordination agreement relating to such Subordinated Debt, or amend any provision affecting Bank’s rights contained in any documentation relating to the Subordinated Debt without Bank’s prior written consent.

 7.10 Inventory and Equipment. Store the Inventory or the Equipment (other than (x) movable items of personal
property (such as laptop computers) having an aggregate book value not to exceed Fifty Thousand Dollars ($50,000) at any time and (y) laboratory Equipment having an aggregate book value not to exceed Two Hundred Thousand Dollars ($200,000) at
any single location) with a bailee, warehouseman, or similar third party unless the third party has been notified of Bank’s security interest and Bank (a) has received an acknowledgment from the third party that it is holding or will hold
the Inventory or Equipment for Bank’s benefit or (b) is in possession of the warehouse receipt, where negotiable, covering such Inventory or Equipment. Except for Inventory sold in the ordinary course of business and except for such other
locations as Bank may approve in writing, Borrower shall keep the Inventory and Equipment (other than (x) movable items of personal property (such as laptop computers) having an aggregate book value not to exceed Fifty Thousand Dollars
($50,000) at any time and (y) laboratory Equipment having an aggregate book value not to exceed Two Hundred Thousand Dollars ($200,000) at any single location) only at the location set forth in Section 10 and such other locations of which
Borrower gives Bank prior written notice and as to which Bank files a financing statement where needed to perfect its security interest. 
 7.11 No Investment Company; Margin Regulation. Become or be controlled by an “investment company,” within the meaning of the Investment Company Act of 1940, or become principally engaged
in, or undertake as one of its important activities, the business of extending credit for the purpose of purchasing or carrying margin stock, or use the proceeds of any Credit Extension for such purpose. 

8. EVENTS OF DEFAULT. 
 Any one or more of the following events shall constitute an Event of Default by Borrower under this Agreement: 
 8.1 Payment Default. If Borrower fails to pay any of the Obligations when due; 

  

					
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 [ * ] = Certain
confidential information contained in this document, marked by brackets, has been omitted and filed separately with the Securities and Exchange Commission pursuant to Rule 24b-2 of the Securities Exchange Act of 1934, as amended. 

 8.2 Covenant Default. 

(a) If Borrower fails to perform any obligation under Section 6.2, 6.4, 6.5, 6.6 or 6.7, or violates any of the covenants contained
in Article 7 of this Agreement; or 
 (b) If Borrower fails or neglects to perform or observe any other material term,
provision, condition, covenant contained in this Agreement, in any of the Loan Documents, or in any other present or future agreement between Borrower and Bank and as to any default under such other term, provision, condition or covenant that can be
cured, has failed to cure such default within ten (10) days after Borrower receives notice thereof or any officer of Borrower becomes aware thereof; provided, however, that if the default cannot by its nature be cured within the ten
(10) day period or cannot after diligent attempts by Borrower be cured within such ten (10) day period, and such default is likely to be cured within a reasonable time, then Borrower shall have an additional reasonable period (which shall
not in any case exceed thirty (30) days) to attempt to cure such default, so long as Borrower continues to diligently attempt to cure such default, and within such reasonable time period the failure to have cured such default shall not be
deemed an Event of Default but no Credit Extensions will be made; 
 8.3 Material Adverse Change. If there occurs any
circumstance or circumstances that could reasonably be expected to have a Material Adverse Effect. 
 8.4 Defective
Perfection. If Bank shall receive at any time following the Closing Date an SOS Report indicating that except for Permitted Liens, Bank’s security interest in any material part of the Collateral (determined in Bank’s reasonable
discretion, exercised from the perspective of a secured, commercial lender) is not prior to all other security interests or Liens of record reflected in the report; 
 8.5 Attachment. If any material portion of Borrower’s assets is attached, seized, subjected to a writ or distress warrant, or is levied upon, or comes into the possession of any trustee,
receiver or person acting in a similar capacity and such attachment, seizure, writ or distress warrant or levy has not been removed, discharged or rescinded within five (5) days, or if Borrower is enjoined, restrained, or in any way prevented
by court order from continuing to conduct all or any material part of its business affairs, or if a judgment or other claim becomes a lien or encumbrance upon any material portion of Borrower’s assets, or if a notice of lien, levy, or
assessment is filed of record with respect to any of Borrower’s assets by the United States Government, or any department, agency, or instrumentality thereof, or by any state, county, municipal, or governmental agency, and the same is not paid
within five (5) days after Borrower receives notice thereof, provided that none of the foregoing shall constitute an Event of Default where such action or event is stayed or an adequate bond has been posted pending a good faith contest by
Borrower (provided that no Credit Extensions will be made during such cure period); 
 8.6 Insolvency. If Borrower
becomes insolvent, or if an Insolvency Proceeding is commenced by Borrower, or if an Insolvency Proceeding is commenced against Borrower and is not dismissed or stayed within thirty (30) days (provided that no Credit Extensions will be made
prior to the dismissal of such Insolvency Proceeding); 
 8.7 Other Agreements. If there is a default or other failure to
perform in any agreement to which Borrower is a party with a third party or parties resulting in a right by such third party or parties, whether or not exercised, to accelerate the maturity of any Indebtedness in an amount in excess of One Hundred
Thousand Dollars ($100,000) or that would reasonably be expected to have a Material Adverse Effect; 
 8.8 Subordinated
Debt. If Borrower makes any payment on account of Subordinated Debt, except to the extent the payment is allowed under any subordination agreement entered into with Bank; 
 8.9 Judgments; Settlements. If a judgment or judgments for the payment of money in an amount, individually or in the aggregate, of at least One Hundred Thousand Dollars ($100,000) shall be rendered
against Borrower and shall remain unsatisfied and unstayed for a period of ten (10) days (provided that no Credit Extensions will be made prior to the satisfaction or stay of the judgment); or if a settlement or settlements is agreed upon for
an amount individually or in the aggregate of at least Three Hundred Fifty Thousand Dollars ($350,000). 

  

					
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confidential information contained in this document, marked by brackets, has been omitted and filed separately with the Securities and Exchange Commission pursuant to Rule 24b-2 of the Securities Exchange Act of 1934, as amended. 

 8.10 Change in Control. If Borrower suffers or permits a Change in Control.

 8.11 Misrepresentations. If any material misrepresentation or material misstatement exists now or hereafter in any
warranty or representation set forth herein or in any certificate delivered to Bank by any Responsible Officer pursuant to this Agreement or to induce Bank to enter into this Agreement or any other Loan Document. 

9. BANK’S RIGHTS AND REMEDIES. 
 9.1 Rights and Remedies. Upon the occurrence and during the continuance of an Event of Default, Bank may, at its election, without notice of its election and without demand, do any one or more of
the following, all of which are authorized by Borrower: 
 (a) Declare all Obligations, whether evidenced by this Agreement, by
any of the other Loan Documents, or otherwise, immediately due and payable (provided that upon the occurrence of an Event of Default described in Section 8.6 (insolvency), all Obligations shall become immediately due and payable without any
action by Bank); 
 (b) Demand that Borrower (i) deposit cash with Bank in an amount equal to the amount of any Letters of
Credit remaining undrawn, and (ii) pay in advance all Letter of Credit fees scheduled to be paid or payable over the remaining term of the Letters of Credit, and Borrower shall promptly deposit and pay such amounts; 

(c) Cease advancing money or extending credit to or for the benefit of Borrower under this Agreement or under any other agreement
between Borrower and Bank; 
 (d) Settle or adjust disputes and claims directly with account debtors for amounts, upon terms
and in whatever order that Bank reasonably considers advisable; 
 (e) Make such payments and do such acts as Bank considers
necessary or reasonable to protect its security interest in the Collateral. Borrower agrees to assemble the Collateral if Bank so requires, and to make the Collateral available to Bank as Bank may designate. Borrower authorizes Bank to enter the
premises where the Collateral is located, to take and maintain possession of the Collateral, or any part of it, and to pay, purchase, contest, or compromise any encumbrance, charge, or lien which in Bank’s determination appears to be prior or
superior to its security interest and to pay all expenses incurred in connection therewith. With respect to any of Borrower’s owned premises, Borrower hereby grants Bank a license to enter into possession of such premises and to occupy the
same, without charge, in order to exercise any of Bank’s rights or remedies provided herein, at law, in equity, or otherwise; 
 (f) Set off and apply to the Obligations any and all (i) balances and deposits of Borrower held by Bank, and (ii) indebtedness at any time owing to or for the credit or the account of Borrower
held by Bank; 
 (g) Ship, reclaim, recover, store, finish, maintain, repair, prepare for sale, advertise for sale, and sell
(in the manner provided for herein) the Collateral. Bank is hereby granted a license or other right, solely pursuant to the provisions of this Section 9.1, to use, without charge, Borrower’s labels, patents, copyrights, rights of use of
any name, trade secrets, trade names, trademarks, service marks, and advertising matter, or any property of a similar nature, as it pertains to the Collateral, in completing production of, advertising for sale, and selling any Collateral and, in
connection with Bank’s exercise of its rights under this Section 9.1, Borrower’s rights under all licenses and all franchise agreements shall inure to Bank’s benefit; 

  

					
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 [ * ] = Certain
confidential information contained in this document, marked by brackets, has been omitted and filed separately with the Securities and Exchange Commission pursuant to Rule 24b-2 of the Securities Exchange Act of 1934, as amended. 

 (h) Sell the Collateral at either a public or private sale, or both, by way of one or more
contracts or transactions, for cash or on terms, in such manner and at such places (including Borrower’s premises) as Bank determines is commercially reasonable, and apply any proceeds to the Obligations in whatever manner or order Bank deems
appropriate. Bank may sell the Collateral without giving any warranties as to the Collateral. Bank may specifically disclaim any warranties of title or the like. This procedure will not be considered adversely to affect the commercial reasonableness
of any sale of the Collateral. If Bank sells any of the Collateral upon credit, Borrower will be credited only with payments actually made by the purchaser, received by Bank, and applied to the indebtedness of the purchaser. If the purchaser fails
to pay for the Collateral, Bank may resell the Collateral and Borrower shall be credited with the proceeds of the sale; 
 (i)
Bank may credit bid and purchase at any public sale; 
 (j) Apply for the appointment of a receiver, trustee, liquidator or
conservator of the Collateral, without notice and without regard to the adequacy of the security for the Obligations and without regard to the solvency of Borrower, any guarantor or any other Person liable for any of the Obligations; and 

(k) Any deficiency that exists after disposition of the Collateral as provided above will be paid immediately by Borrower. 

Bank may comply with any applicable state or federal law requirements in connection with a disposition of the Collateral and compliance will not be
considered adversely to affect the commercial reasonableness of any sale of the Collateral. 
 9.2 Power of Attorney.
Effective only upon the occurrence and during the continuance of an Event of Default, Borrower hereby irrevocably appoints Bank (and any of Bank’s designated officers, or employees) as Borrower’s true and lawful attorney to: (a) send
requests for verification of Accounts or notify account debtors of Bank’s security interest in the Accounts; (b) endorse Borrower’s name on any checks or other forms of payment or security that may come into Bank’s possession;
(c) sign Borrower’s name on any invoice or bill of lading relating to any Account, drafts against account debtors, schedules and assignments of Accounts, verifications of Accounts, and notices to account debtors; (d) dispose of any
Collateral; (e) make, settle, and adjust all claims under and decisions with respect to Borrower’s policies of insurance; (f) settle and adjust disputes and claims respecting the accounts directly with account debtors, for amounts and
upon terms which Bank determines to be reasonable; and (g) file, in its sole discretion, one or more financing or continuation statements and amendments thereto, relative to any of the Collateral without the signature of Borrower where
permitted by law; provided Bank may exercise such power of attorney to sign the name of Borrower on any of the documents described in clause (g) above, regardless of whether an Event of Default has occurred. The appointment of Bank as
Borrower’s attorney in fact, and each and every one of Bank’s rights and powers, being coupled with an interest, is irrevocable until all of the Obligations have been fully repaid and performed and Bank’s obligation to provide
advances hereunder is terminated. 
 9.3 Accounts Collection. At any time after the occurrence and during the
continuation of an Event of Default, Bank may notify any Person owing funds to Borrower of Bank’s security interest in such funds and verify the amount of such Account. Borrower shall collect all amounts owing to Borrower for Bank, receive in
trust all payments as Bank’s trustee, and immediately deliver such payments to Bank in their original form as received from the account debtor, with proper endorsements for deposit. 

9.4 Bank Expenses. If Borrower fails to pay any amounts or furnish any required proof of payment due to third persons or entities,
as required under the terms of this Agreement, then Bank may do any or all of the following after reasonable notice to Borrower: (a) make payment of the same or any part thereof; (b) set up such reserves as Bank deems necessary to protect
Bank from the exposure created by such failure; or (c) obtain and 

  

					
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confidential information contained in this document, marked by brackets, has been omitted and filed separately with the Securities and Exchange Commission pursuant to Rule 24b-2 of the Securities Exchange Act of 1934, as amended. 

 
maintain insurance policies of the type discussed in Section 6.5 of this Agreement, and take any action with respect to such policies as Bank deems prudent. Any amounts so paid or deposited
by Bank shall constitute Bank Expenses, shall be immediately due and payable, and shall bear interest at the then applicable rate hereinabove provided, and shall be secured by the Collateral. Any payments made by Bank shall not constitute an
agreement by Bank to make similar payments in the future or a waiver by Bank of any Event of Default under this Agreement. 

9.5 Bank’s Liability for Collateral. Bank has no obligation to clean up or otherwise prepare the Collateral for sale. All
risk of loss, damage or destruction of the Collateral shall be borne by Borrower. 
 9.6 No Obligation to Pursue Others.
Bank has no obligation to attempt to satisfy the Obligations by collecting them from any other person liable for them and Bank may release, modify or waive any collateral provided by any other Person to secure any of the Obligations, all without
affecting Bank’s rights against Borrower. Borrower waives any right it may have to require Bank to pursue any other Person for any of the Obligations. 
 9.7 Remedies Cumulative. Bank’s rights and remedies under this Agreement, the Loan Documents, and all other agreements shall be cumulative. Bank shall have all other rights and remedies not
inconsistent herewith as provided under the Code, by law, or in equity. No exercise by Bank of one right or remedy shall be deemed an election, and no waiver by Bank of any Event of Default on Borrower’s part shall be deemed a continuing
waiver. No delay by Bank shall constitute a waiver, election, or acquiescence by it. No waiver by Bank shall be effective unless made in a written document signed on behalf of Bank and then shall be effective only in the specific instance and for
the specific purpose for which it was given. Borrower expressly agrees that this Section 9.7 may not be waived or modified by Bank by course of performance, conduct, estoppel or otherwise. 

9.8 Demand; Protest. Except as otherwise provided in this Agreement, Borrower waives demand, protest, notice of protest, notice of
default or dishonor, notice of payment and nonpayment and any other notices relating to the Obligations. 
 10. NOTICES.

 Unless otherwise provided in this Agreement, all notices or demands by any party relating to this Agreement or any other agreement entered
into in connection herewith shall be in writing and (except for financial statements and other informational documents which may be sent by first-class mail, postage prepaid) shall be personally delivered or sent by a recognized overnight delivery
service, certified mail, postage prepaid, return receipt requested, or by telefacsimile to Borrower or to Bank, as the case may be, at its addresses set forth below: 
  

					
	If to Borrower:	  	diaDexus, Inc.	  	
		  	343 Oyster Point Blvd.	  	
		  	South San Francisco, CA 94080	  	
		  	Attn: Chief Financial Officer	  	
		  	FAX: (650) 246-6499	  	

  

					
		 	15	 	September 11, 2012

 [ * ] = Certain
confidential information contained in this document, marked by brackets, has been omitted and filed separately with the Securities and Exchange Commission pursuant to Rule 24b-2 of the Securities Exchange Act of 1934, as amended. 

					
	If to Bank:	  	Comerica Bank	  	
		  	M/C 7578	  	
		  	39200 Six Mile Rd.	  	
		  	Livonia, MI 48152	  	
		  	Attn: National Documentation Services	  	
			
	with a copy to:	  	Comerica Bank	  	
		  	250 Lytton Avenue, 3rd Floor	  	
		  	Palo Alto, CA 94301	  	
		  	Attn: Jeff Chapman, Senior Vice President	  	
		  	FAX: (650) 462-6049	  	

 The parties hereto may change the address at which they are to receive notices hereunder, by notice in
writing in the foregoing manner given to the other. 
 11. CHOICE OF LAW AND VENUE; JURY TRIAL WAIVER. 

This Agreement shall be governed by, and construed in accordance with, the internal laws of the State of California, without regard to
principles of conflicts of law. Each of Borrower and Bank hereby submits to the exclusive jurisdiction of the State and Federal courts located in the State of California. THE UNDERSIGNED ACKNOWLEDGE THAT THE RIGHT TO TRIAL BY JURY IS A
CONSTITUTIONAL ONE, BUT THAT IT MAY BE WAIVED UNDER CERTAIN CIRCUMSTANCES. TO THE EXTENT PERMITTED BY LAW, EACH PARTY, AFTER CONSULTING (OR HAVING HAD THE OPPORTUNITY TO CONSULT) WITH COUNSEL OF ITS, HIS OR HER CHOICE, KNOWINGLY AND VOLUNTARILY, AND
FOR THE MUTUAL BENEFIT OF ALL PARTIES, WAIVES ANY RIGHT TO TRIAL BY JURY IN THE EVENT OF LITIGATION ARISING OUT OF OR RELATED TO THIS AGREEMENT OR ANY OTHER DOCUMENT, INSTRUMENT OR AGREEMENT BETWEEN THE UNDERSIGNED PARTIES. 

12. REFERENCE PROVISION. 
 12.1 In the event the Jury Trial Waiver set forth above is not enforceable, the parties elect to proceed under this Judicial Reference Provision. 

12.2 With the exception of the items specified in Section 12.3, below, any controversy, dispute or claim (each, a “Claim”)
between the parties arising out of or relating to this Agreement or any other document, instrument or agreement between the undersigned parties (collectively in this Section, the “Loan Documents”), will be resolved by a reference
proceeding in California in accordance with the provisions of Sections 638 et seq. of the California Code of Civil Procedure (“CCP”), or their successor sections, which shall constitute the exclusive remedy for the resolution of any Claim,
including whether the Claim is subject to the reference proceeding. Except as otherwise provided in the Loan Documents, venue for the reference proceeding will be in the Superior Court in the County where the real property involved in the action, if
any, is located or in a County where venue is otherwise appropriate under applicable law (the “Court”). 
 12.3 The
matters that shall not be subject to a reference are the following: (i) foreclosure of any security interests in real or personal property, (ii) exercise of selfhelp remedies (including, without limitation, set-off), (iii) appointment
of a receiver and (iv) temporary, provisional or ancillary remedies (including, without limitation, writs of attachment, writs of possession, temporary restraining orders or preliminary injunctions). This Agreement does not limit the right of
any party to exercise or oppose any of the rights and remedies described in clauses (i) and (ii) or to seek or oppose from a court of competent jurisdiction any of the items described in clauses (iii) and (iv). The exercise of, or
opposition to, any of those items does not waive the right of any party to a reference pursuant to this Agreement. 

  

					
		 	16	 	September 11, 2012

 [ * ] = Certain
confidential information contained in this document, marked by brackets, has been omitted and filed separately with the Securities and Exchange Commission pursuant to Rule 24b-2 of the Securities Exchange Act of 1934, as amended. 

 12.4 The referee shall be a retired Judge or Justice selected by mutual written agreement of
the parties. If the parties do not agree within ten (10) days of a written request to do so by any party, then, upon request of any party, the referee shall be selected by the Presiding Judge of the Court (or his or her representative). A
request for appointment of a referee may be heard on an ex parte or expedited basis, and the parties agree that irreparable harm would result if ex parte relief is not granted. 

12.5 The parties agree that time is of the essence in conducting the reference proceedings. Accordingly, the referee shall be requested,
subject to change in the time periods specified herein for good cause shown, to (i) set the matter for a status and trial-setting conference within fifteen (15) days after the date of selection of the referee, (ii) if practicable, try
all issues of law or fact within one hundred twenty (120) days after the date of the conference and (iii) report a statement of decision within twenty (20) days after the matter has been submitted for decision. 

12.6 The referee will have power to expand or limit the amount and duration of discovery. The referee may set or extend discovery
deadlines or cutoffs for good cause, including a party’s failure to provide requested discovery for any reason whatsoever. Unless otherwise ordered based upon good cause shown, no party shall be entitled to “priority” in conducting
discovery, depositions may be taken by either party upon seven (7) days written notice, and all other discovery shall be responded to within fifteen (15) days after service. All disputes relating to discovery which cannot be resolved by
the parties shall be submitted to the referee whose decision shall be final and binding. 
 12.7 Except as expressly set forth
in this Agreement, the referee shall determine the manner in which the reference proceeding is conducted including the time and place of hearings, the order of presentation of evidence, and all other questions that arise with respect to the course
of the reference proceeding. All proceedings and hearings conducted before the referee, except for trial, shall be conducted without a court reporter, except that when any party so requests, a court reporter will be used at any hearing conducted
before the referee, and the referee will be provided a courtesy copy of the transcript. The party making such a request shall have the obligation to arrange for and pay the court reporter. Subject to the referee’s power to award costs to the
prevailing party, the parties will equally share the cost of the referee and the court reporter at trial. 
 12.8 The referee
shall be required to determine all issues in accordance with existing case law and the statutory laws of the State of California. The rules of evidence applicable to proceedings at law in the State of California will be applicable to the reference
proceeding. The referee shall be empowered to enter equitable as well as legal relief, enter equitable orders that will be binding on the parties and rule on any motion which would be authorized in a court proceeding, including without limitation
motions for summary judgment or summary adjudication. The referee shall issue a decision at the close of the reference proceeding which disposes of all claims of the parties that are the subject of the reference. Pursuant to CCP § 644, such
decision shall be entered by the Court as a judgment or an order in the same manner as if the action had been tried by the Court and any such decision will be final, binding and conclusive. The parties reserve the right to appeal from the final
judgment or order or from any appealable decision or order entered by the referee. The parties reserve the right to findings of fact, conclusions of laws, a written statement of decision, and the right to move for a new trial or a different
judgment, which new trial, if granted, is also to be a reference proceeding under this provision. 
 12.9 If the enabling
legislation which provides for appointment of a referee is repealed (and no successor statute is enacted), any dispute between the parties that would otherwise be determined by reference procedure will be resolved and determined by arbitration. The
arbitration will be conducted by a retired judge or Justice, in accordance with the California Arbitration Act §1280 through §1294.2 of the CCP as amended from time to time. The limitations with respect to discovery set forth above shall
apply to any such arbitration proceeding. 

  

					
		 	17	 	September 11, 2012

 [ * ] = Certain
confidential information contained in this document, marked by brackets, has been omitted and filed separately with the Securities and Exchange Commission pursuant to Rule 24b-2 of the Securities Exchange Act of 1934, as amended. 

 12.10 THE PARTIES RECOGNIZE AND AGREE THAT ALL CONTROVERSIES, DISPUTES AND CLAIMS RESOLVED
UNDER THIS REFERENCE PROVISION WILL BE DECIDED BY A REFEREE AND NOT BY A JURY. AFTER CONSULTING (OR HAVING HAD THE OPPORTUNITY TO CONSULT) WITH COUNSEL OF ITS, HIS OR HER OWN CHOICE, EACH PARTY KNOWINGLY AND VOLUNTARILY, AND FOR THE MUTUAL BENEFIT
OF ALL PARTIES, AGREES THAT THIS REFERENCE PROVISION WILL APPLY TO ANY CONTROVERSY, DISPUTE OR CLAIM BETWEEN OR AMONG THEM ARISING OUT OF OR IN ANY WAY RELATED TO, THIS AGREEMENT OR THE OTHER LOAN DOCUMENTS. 

13. GENERAL PROVISIONS. 
 13.1 Successors and Assigns. This Agreement shall bind and inure to the benefit of the respective successors and permitted assigns of each of the parties and shall bind all persons who become bound
as a debtor to this Agreement; provided, however, that neither this Agreement nor any rights hereunder may be assigned by Borrower without Bank’s prior written consent, which consent may be granted or withheld in Bank’s sole discretion.
Bank shall have the right without the consent of or notice to Borrower to sell, transfer, negotiate, or grant participation in all or any part of, or any interest in, Bank’s obligations, rights and benefits hereunder. 

13.2 Indemnification. Borrower shall defend, indemnify and hold harmless Bank and its officers, employees, and agents against:
(a) all obligations, demands, claims, and liabilities claimed or asserted by any other party in connection with the transactions contemplated by this Agreement and/or the Loan Documents; and (b) all losses or Bank Expenses in any way
suffered, incurred, or paid by Bank, its officers, employees and agents as a result of or in any way arising out of, following, or consequential to transactions between Bank and Borrower whether under this Agreement, or otherwise (including without
limitation reasonable attorneys fees and expenses), except for liabilities or losses caused by Bank’s gross negligence or willful misconduct. 
 13.3 Time of Essence. Time is of the essence for the performance of all obligations set forth in this Agreement. 
 13.4 Severability of Provisions. Each provision of this Agreement shall be severable from every other provision of this Agreement for the purpose of determining the legal enforceability of any
specific provision. 
 13.5 Correction of Loan Documents. Bank may correct patent errors and fill in any blanks in this
Agreement and the other Loan Documents consistent with the agreement of the parties. 
 13.6 Amendments in Writing,
Integration. All amendments to or terminations of this Agreement or the other Loan Documents must be in writing signed by the parties. All prior agreements, understandings, representations, warranties, and negotiations between the parties hereto
with respect to the subject matter of this Agreement and the other Loan Documents, if any, are merged into this Agreement and the Loan Documents. 
 13.7 Counterparts. This Agreement may be executed in any number of counterparts and by different parties on separate counterparts, each of which, when executed and delivered, shall be deemed to be
an original, and all of which, when taken together, shall constitute but one and the same Agreement. 
 13.8 Survival.
All covenants, representations and warranties made in this Agreement shall continue in full force and effect so long as any Obligations remain outstanding or Bank has any obligation to make any Credit Extension to Borrower. The obligations of
Borrower to indemnify Bank with respect to the expenses, damages, losses, costs and liabilities described in Section 13.2 shall survive until all applicable statute of limitations periods with respect to actions that may be brought against Bank
have run. 

  

					
		 	18	 	September 11, 2012

 [ * ] = Certain
confidential information contained in this document, marked by brackets, has been omitted and filed separately with the Securities and Exchange Commission pursuant to Rule 24b-2 of the Securities Exchange Act of 1934, as amended. 

 13.9 Confidentiality. In handling any confidential information, Bank and all
employees and agents of Bank shall exercise the same degree of care that Bank exercises with respect to its own proprietary information of the same types to maintain the confidentiality of any non-public information thereby received or received
pursuant to this Agreement except that disclosure of such information may be made (i) to the subsidiaries or Affiliates of Bank in connection with their present or prospective business relations with Borrower, (ii) to prospective
transferees or purchasers of any interest in the Loans, (iii) as required by law, regulations, rule or order, subpoena, judicial order or similar order, (iv) as may be required in connection with the examination, audit or similar
investigation of Bank, (v) to Bank’s accountants, auditors and regulators, and (vi) as Bank may determine in connection with the enforcement of any remedies hereunder. Confidential information hereunder shall not include information
that either: (a) is in the public domain or in the knowledge or possession of Bank when disclosed to Bank, or becomes part of the public domain after disclosure to Bank through no fault of Bank; or (b) is disclosed to Bank by a third
party, provided Bank does not have actual knowledge that such third party is prohibited from disclosing such information. 

13.10 Effect of Amendment and Restatement. Except as otherwise set forth herein, this Agreement is intended to and does completely
amend and restate, without novation, the Original Agreement. All security interests granted under the Original Agreement are hereby confirmed and ratified and shall continue to secure all Obligations under this Agreement. 

[Balance of Page Intentionally Left Blank] 

 

  

					
		 	19	 	September 11, 2012

 [ * ] = Certain
confidential information contained in this document, marked by brackets, has been omitted and filed separately with the Securities and Exchange Commission pursuant to Rule 24b-2 of the Securities Exchange Act of 1934, as amended. 

 IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be executed as of the
date first above written. 
  

			
	diaDexus, Inc.
		
	By:	 	 /s/ Jean Viret

	Name:	 	 Jean Viret

	Title:	 	 CFO

	
	COMERICA BANK
		
	By:	 	 /s/ Jeff Chapman

	Name:	 	 Jeff Chapman

	Title:	 	 SVP

 [Signature Page to Amended and Restated Loan and Security Agreement] 

  
 [ * ] = Certain
confidential information contained in this document, marked by brackets, has been omitted and filed separately with the Securities and Exchange Commission pursuant to Rule 24b-2 of the Securities Exchange Act of 1934, as amended. 

 EXHIBIT A 
 DEFINITIONS 
 “Accounts” means all presently existing and hereafter arising accounts,
contract rights, payment intangibles and all other forms of obligations owing to Borrower arising out of the sale or lease of goods (including, without limitation, the licensing of software and other technology) or the rendering of services by
Borrower and any and all credit insurance, guaranties, and other security therefor, as well as all merchandise returned to or reclaimed by Borrower and Borrower’s Books relating to any of the foregoing. 

“Affiliate” means, with respect to any Person, any Person that owns or controls directly or indirectly such Person, any Person that controls or
is controlled by or is under common control with such Person, and each of such Person’s senior executive officers, directors, and partners. 
 “Bank Expenses” means all reasonable costs or expenses (including reasonable attorneys’ fees and expenses, whether generated in-house or by outside counsel) incurred in connection with the
preparation, negotiation, administration, and enforcement of the Loan Documents; reasonable Collateral audit fees; and Bank’s reasonable attorneys’ fees and expenses (whether generated in-house or by outside counsel) incurred in amending,
enforcing or defending the Loan Documents (including fees and expenses of appeal), incurred before, during and after an Insolvency Proceeding, whether or not suit is brought. 
 “Borrower State” means Delaware, the state under whose laws Borrower is organized. 

“Borrower’s Books” means all of Borrower’s books and records including: ledgers; records concerning Borrower’s assets or
liabilities, the Collateral, business operations or financial condition; and all computer programs, or tape files, and the equipment, containing such information. 
 “Business Day” means any day that is not a Saturday, Sunday, or other day on which banks in the State of California are authorized or required to close. 

“Cash” means unrestricted cash and cash equivalents. 
 “Change in Control” shall mean a transaction in which any “person” or “group” (within the meaning of Section 13(d) and 14(d)(2) of the Securities Exchange Act of 1934)
becomes the “beneficial owner” (as defined in Rule 13d-3 under the Securities Exchange Act of 1934), directly or indirectly, of a sufficient number of shares of all classes of stock then outstanding of Borrower ordinarily entitled to vote
in the election of directors, empowering such “person” or “group” to elect a majority of the Board of Directors of Borrower, who did not have such power before such transaction. 

“Chief Executive Office State” means California, where Borrower’s chief executive office is located. 

“Closing Date” means the date of this Agreement. 
 “Code” means the California Uniform Commercial Code as amended or supplemented from time to time. 
 “Collateral” means the property described on Exhibit B attached hereto and all Negotiable Collateral to the extent not described on Exhibit B, except to the extent any such
property (i) is nonassignable by its terms without the consent of the licensor thereof or another party (but only to the extent such prohibition on transfer is enforceable under applicable law, including, without limitation, Sections 9406 and
9408 of the Code), (ii) the granting of a security interest therein is contrary to applicable law, provided that upon the cessation of any such restriction or prohibition, such property shall automatically become part of the Collateral, or
(iii) constitutes the capital stock of a controlled foreign corporation (as defined in the IRC), in excess of sixty five percent (65%) of the voting power of 

  

					
		 	1	 	September 11, 2012

 [ * ] = Certain
confidential information contained in this document, marked by brackets, has been omitted and filed separately with the Securities and Exchange Commission pursuant to Rule 24b-2 of the Securities Exchange Act of 1934, as amended. 

 
all classes of capital stock of such controlled foreign corporations entitled to vote; provided that in no case shall the definition of “Collateral” exclude any Accounts, proceeds of
the disposition of any property, or general intangibles consisting of rights to payment. 
 “Collateral State” means the state or
states where the Collateral is located, which is California. 
 “Contingent Obligation” means, as applied to any Person, any direct or
indirect liability, contingent or otherwise, of that Person with respect to (i) any indebtedness, lease, dividend, letter of credit or other obligation of another, including, without limitation, any such obligation directly or indirectly
guaranteed, endorsed, co-made or discounted or sold with recourse by that Person, or in respect of which that Person is otherwise directly or indirectly liable; (ii) any obligations with respect to undrawn letters of credit, corporate credit
cards or merchant services issued for the account of that Person; and (iii) all obligations arising under any interest rate, currency or commodity swap agreement, interest rate cap agreement, interest rate collar agreement, or other agreement
or arrangement designated to protect a Person against fluctuation in interest rates, currency exchange rates or commodity prices; provided, however, that the term “Contingent Obligation” shall not include endorsements for collection or
deposit in the ordinary course of business. The amount of any Contingent Obligation shall be deemed to be an amount equal to the stated or determined amount of the primary obligation in respect of which such Contingent Obligation is made or, if not
stated or determinable, the maximum reasonably anticipated liability in respect thereof as determined by such Person in good faith; provided, however, that such amount shall not in any event exceed the maximum amount of the obligations under the
guarantee or other support arrangement. 
 “Copyrights” means any and all copyright rights, copyright applications, copyright
registrations and like protections in each work or authorship and derivative work thereof, whether published or unpublished and whether or not the same also constitutes a trade secret, now or hereafter existing, created, acquired or held.

 “Credit Extension” means the Growth Capital Advance or any other extension of credit by Bank to or for the benefit of Borrower
hereunder. 
 “Environmental Laws” means all laws, rules, regulations, orders and the like issued by any federal state, local foreign
or other governmental or quasi-governmental authority or any agency pertaining to the environment or to any hazardous materials or wastes, toxic substances, flammable, explosive or radioactive materials, asbestos or other similar materials.

 “Equipment” means all present and future machinery, equipment, tenant improvements, furniture, fixtures, vehicles, tools, parts and
attachments in which Borrower has any interest. 
 “ERISA” means the Employee Retirement Income Security Act of 1974, as amended, and
the regulations thereunder. 
 “Event of Default” has the meaning assigned in Article 8. 

“Final Payment” is a payment (in addition to and not a substitution for the regular monthly payments of principal plus accrued interest) due
and payable to Bank on the earliest to occur of (a) the Maturity Date, or (b) the acceleration of the Growth Capital Advance, or (c) the prepayment of the Growth Capital Advance pursuant to Section 2.1(b)(iv) or (v), equal to One
Hundred Thousand Dollars ($100,000). 
 “GAAP” means generally accepted accounting principles, consistently applied, as in effect from
time to time. 
 “Growth Capital Advance” means a cash advance or cash advances under the Growth Capital Line. 

“Growth Capital Interest Only End Date” means September 23, 2013. 

  

					
		 	2	 	September 11, 2012

 [ * ] = Certain
confidential information contained in this document, marked by brackets, has been omitted and filed separately with the Securities and Exchange Commission pursuant to Rule 24b-2 of the Securities Exchange Act of 1934, as amended. 

 “Growth Capital Line” means a Credit Extension of Five Million Dollars ($5,000,000). 

“Growth Capital Maturity Date” means September 23, 2016. 
 “Indebtedness” means (a) all indebtedness for borrowed money or the deferred purchase price of property or services, including without limitation reimbursement and other obligations with
respect to surety bonds and letters of credit, (b) all obligations evidenced by notes, bonds, debentures or similar instruments, (c) all capital lease obligations, and (d) all Contingent Obligations. 

“Insolvency Proceeding” means any proceeding commenced by or against any Person or entity under any provision of the United States Bankruptcy
Code, as amended, or under any other bankruptcy or insolvency law, including assignments for the benefit of creditors, formal or informal moratoria, compositions, extension generally with its creditors, or proceedings seeking reorganization,
arrangement, or other relief. 
 “Intellectual Property” means all of Borrower’s right, title, and interest in and to the
following: 
  

	(a)	Copyrights, Trademarks and Patents; 

  

	(b)	Any and all trade secrets, and any and all intellectual property rights in computer software and computer software products now or hereafter existing, created, acquired
or held; 

  

	(c)	Any and all design rights which may be available to Borrower now or hereafter existing, created, acquired or held; 

 

	(d)	Any and all claims for damages by way of past, present and future infringement of any of the rights included above, with the right, but not the obligation, to sue for
and collect such damages for said use or infringement of the intellectual property rights identified above; 

  

	(e)	All licenses or other rights to use any of the Copyrights, Patents or Trademarks, and all license fees and royalties arising from such use to the extent permitted by
such license or rights; and 

  

	(f)	All amendments, renewals and extensions of any of the Copyrights, Trademarks or Patents. 

 “Inventory” means all present and future inventory in which Borrower has any interest. 

“Investment” means any beneficial ownership of (including stock, partnership or limited liability company interest or other securities) any
Person, or any loan, advance or capital contribution to any Person. 
 “IRC” means the Internal Revenue Code of 1986, as amended, and
the regulations thereunder. 
 “Letter of Credit” means a commercial or standby letter of credit or similar undertaking issued by Bank
at Borrower’s request. 
 “Lien” means any mortgage, lien, deed of trust, charge, pledge, security interest or other encumbrance.

 “Loan Documents” means, collectively, this Agreement, any note or notes executed by Borrower, and any other document, instrument or
agreement entered into in connection with this Agreement, all as amended or extended from time to time. 
 “Material Adverse Effect”
means (i) a material adverse change in Borrower’s business, operations or condition (financial or otherwise), or (ii) a material impairment in the prospect of repayment of all or any portion of the Obligations or in otherwise
performing Borrower’s obligations under the Loan Documents, (iii) a material impairment in the perfection, value or priority of Bank’s security interests in the Collateral. 

  

					
		 	3	 	September 11, 2012

 [ * ] = Certain
confidential information contained in this document, marked by brackets, has been omitted and filed separately with the Securities and Exchange Commission pursuant to Rule 24b-2 of the Securities Exchange Act of 1934, as amended. 

 “Negotiable Collateral” means all of Borrower’s present and future letters of credit of which
it is a beneficiary, drafts, instruments (including promissory notes), securities, documents of title, and chattel paper, and Borrower’s Books relating to any of the foregoing. 
 “Obligations” means all debt, principal, interest, Bank Expenses, the Prepayment Fee, the Final Payment and other amounts owed to Bank by Borrower pursuant to this Agreement or any other
agreement, whether absolute or contingent, due or to become due, now existing or hereafter arising, including any interest that accrues after the commencement of an Insolvency Proceeding and including any debt, liability, or obligation owing from
Borrower to others that Bank may have obtained by assignment or otherwise. 
 “Patents” means all patents, patent applications and
like protections including without limitation improvements, divisions, continuations, renewals, reissues, extensions and continuations-in-part of the same. 
 “Periodic Payments” means all installments or similar recurring payments that Borrower may now or hereafter become obligated to pay to Bank pursuant to the terms and provisions of any
instrument, or agreement now or hereafter in existence between Borrower and Bank. 
 “Permitted Indebtedness” means: 

 

	(a)	Indebtedness of Borrower in favor of Bank arising under this Agreement or any other Loan Document; 

 

	(b)	Indebtedness existing on the Closing Date and disclosed in the Schedule; 

  

	(c)	Indebtedness not to exceed Two Hundred Fifty Thousand Dollars ($250,000) in the aggregate in any fiscal year of Borrower secured by a lien described in clause
(c) of the defined term “Permitted Liens,” provided such Indebtedness does not exceed the lesser of the cost or fair market value of the equipment financed with such Indebtedness; 

 

	(d)	Subordinated Debt; 

  

	(e)	Indebtedness to trade creditors incurred in the ordinary course of business; and 

 

	(f)	Extensions, refinancings and renewals of any items of Permitted Indebtedness, provided that the principal amount is not increased or the terms modified to impose more
burdensome terms upon Borrower or its Subsidiary, as the case may be. 

 “Permitted Investment” means: 

 

	(a)	Investments existing on the Closing Date disclosed in the Schedule; 

  

	(b)	(i) Marketable direct obligations issued or unconditionally guaranteed by the United States of America or any agency or any State thereof maturing within one
(1) year from the date of acquisition thereof, (ii) commercial paper maturing no more than one (1) year from the date of creation thereof and currently having rating of at least A-2 or P-2 from either Standard & Poor’s
Corporation or Moody’s Investors Service, (iii) Bank’s certificates of deposit maturing no more than one (1) year from the date of investment therein, and (iv) Bank’s money market accounts; 

  

					
		 	4	 	September 11, 2012

 [ * ] = Certain
confidential information contained in this document, marked by brackets, has been omitted and filed separately with the Securities and Exchange Commission pursuant to Rule 24b-2 of the Securities Exchange Act of 1934, as amended. 

	(c)	Repurchases of stock from former employees or directors of Borrower under the terms of applicable repurchase agreements (i) in an aggregate amount not to exceed
One Hundred Thousand Dollars ($100,000) in any fiscal year, provided that no Event of Default has occurred, is continuing or would exist after giving effect to the repurchases, or (ii) in any amount where the consideration for the repurchase is
the cancellation of indebtedness owed by such former employees to Borrower regardless of whether an Event of Default exists; 

  

	(d)	Investments accepted in connection with Permitted Transfers; 

  

	(e)	Investments of Subsidiaries in or to other Subsidiaries or Borrower and Investments by Borrower in Subsidiaries not to exceed One Hundred Thousand Dollars ($100,000) in
the aggregate in any fiscal year; 

  

	(f)	Investments not to exceed (i) Two Hundred Fifty Thousand Dollars ($250,000) in the aggregate in any fiscal year consisting of travel advances and employee
relocation loans and other employee loans and advances in the ordinary course of business, and (ii) One Hundred Thousand Dollars ($100,000) in the aggregate in any fiscal year consisting of loans to employees, officers or directors relating to
the purchase of equity securities of Borrower or its Subsidiaries pursuant to employee stock purchase plan agreements approved by Borrower’s Board of Directors; 

 

	(g)	Investments (including debt obligations) received in connection with the bankruptcy or reorganization of customers or suppliers and in settlement of delinquent
obligations of, and other disputes with, customers or suppliers arising in the ordinary course of Borrower’s business; 

  

	(h)	Investments consisting of notes receivable of, or prepaid royalties and other credit extensions, to customers and suppliers who are not Affiliates, in the ordinary
course of business, provided that this subparagraph (h) shall not apply to Investments of Borrower in any Subsidiary; and 

  

	(i)	Joint ventures or strategic alliances in the ordinary course of Borrower’s business consisting of the non-exclusive licensing of technology, the development of
technology or the providing of technical support, provided that any cash Investments by Borrower do not exceed One Hundred Thousand Dollars ($100,000) in the aggregate in any fiscal year. 

“Permitted Liens” means the following: 
  

	(a)	Any Liens existing on the Closing Date and disclosed in the Schedule (excluding Liens to be satisfied with the proceeds of the Advances) or arising under this Agreement
or the other Loan Documents; 

  

	(b)	Liens for taxes, fees, assessments or other governmental charges or levies, either not delinquent or being contested in good faith by appropriate proceedings and for
which Borrower maintains adequate reserves, provided the same have no priority over any of Bank’s security interests; 

  

	(c)	Liens not to exceed Two Hundred Fifty Thousand Dollars ($250,000) in the aggregate in any fiscal year (i) upon or in any Equipment (acquired or held by Borrower or
any of its Subsidiaries to secure the purchase price of such Equipment or indebtedness incurred solely for the purpose of financing the acquisition or lease of such Equipment, or (ii) existing on such Equipment at the time of its acquisition,
provided that the Lien is confined solely to the property so acquired and improvements thereon, and the proceeds of such Equipment; 

  

	(d)	Liens incurred in connection with the extension, renewal or refinancing of the indebtedness secured by Liens of the type described in clauses (a) through
(c) above, provided that any extension, renewal or replacement Lien shall be limited to the property encumbered by the existing Lien and the principal amount of the indebtedness being extended, renewed or refinanced does not increase;

  

					
		 	5	 	September 11, 2012

 [ * ] = Certain
confidential information contained in this document, marked by brackets, has been omitted and filed separately with the Securities and Exchange Commission pursuant to Rule 24b-2 of the Securities Exchange Act of 1934, as amended. 

	(e)	Liens arising from judgments, decrees or attachments in circumstances not constituting an Event of Default under Sections 8.5 (attachment) or 8.9 (judgments); and

  

	(f)	Liens in favor of other financial institutions arising in connection with Borrower’s deposit accounts held at such institutions to secured standard fees for
deposit services charged by, but not financing made available by such institutions, provided that Bank has a perfected security interest in the amounts held in such deposit accounts. 

“Permitted Transfer” means the conveyance, sale, lease, transfer or disposition by Borrower or any Subsidiary of: 

 

	(a)	Inventory in the ordinary course of business; 

  

	(b)	Non-exclusive licenses and similar arrangements for the use of the property of Borrower or its Subsidiaries in the ordinary course of business;

  

	(c)	Worn-out or obsolete Equipment; 

  

	(d)	Transfers of Equipment in connection with sale-leaseback transactions in which Borrower is the beneficiary; 

 

	(e)	The Equipment set forth on Annex II hereto; or 

  

	(f)	Other assets of Borrower or its Subsidiaries that do not in the aggregate exceed One Hundred Thousand Dollars ($100,000) during any fiscal year.

 “Person” means any individual, sole proprietorship, partnership, limited liability company, joint venture, trust,
unincorporated organization, association, corporation, institution, public benefit corporation, firm, joint stock company, estate, entity or governmental agency. 
 “Prepayment Fee” means with respect to the Growth Capital Advance subject to prepayment prior to the Growth Capital Maturity Date, whether by mandatory or voluntary prepayment, acceleration or
otherwise, an additional fee payable to Bank in amount equal to: 
 (i) for a prepayment made on or after the Closing Date
through and including the first anniversary thereof, one percent (1.00%) of the principal amount of the Growth Capital Advance prepaid; and 
 (ii) for a prepayment made thereafter, no Prepayment Fee shall be applicable. 
 “Prohibited
Territory” means any person or country listed by the Office of Foreign Assets Control of the United States Department of Treasury as to which transactions between a United States Person and that territory are prohibited. 

“Responsible Officer” means each of the Chief Executive Officer, the Chief Operating Officer, the Chief Financial Officer or the Controller of
Borrower. 
 “Schedule” means the schedule of exceptions attached hereto and approved by Bank, if any. 

“SOS Reports” means the official reports from the Secretaries of State of each Collateral State, Chief Executive Office State and the Borrower
State and other applicable federal, state or local government offices identifying all current security interests filed in the Collateral and Liens of record as of the date of such report. 

  

					
		 	6	 	September 11, 2012

 [ * ] = Certain
confidential information contained in this document, marked by brackets, has been omitted and filed separately with the Securities and Exchange Commission pursuant to Rule 24b-2 of the Securities Exchange Act of 1934, as amended. 

 “Subordinated Debt” means any debt incurred by Borrower that is subordinated in writing to the
debt owing by Borrower to Bank on terms reasonably acceptable to Bank (and identified as being such by Borrower and Bank). 

“Subsidiary” means any corporation, partnership or limited liability company or joint venture in which (i) any general partnership
interest or (ii) more than fifty percent (50%) of the stock, limited liability company interest or joint venture of which by the terms thereof ordinary voting power to elect the Board of Directors, managers or trustees of the entity, at
the time as of which any determination is being made, is owned by Borrower, either directly or through an Affiliate. 
 “Trademarks”
means any trademark and servicemark rights, whether registered or not, applications to register and registrations of the same and like protections, and the entire goodwill of the business of Borrower connected with and symbolized by such trademarks.

  

					
		 	7	 	September 11, 2012

 [ * ] = Certain
confidential information contained in this document, marked by brackets, has been omitted and filed separately with the Securities and Exchange Commission pursuant to Rule 24b-2 of the Securities Exchange Act of 1934, as amended. 

					
	DEBTOR	  	diaDexus, Inc.	  	
			
	SECURED PARTY:	  	COMERICA BANK	  	

 EXHIBIT B 
 COLLATERAL DESCRIPTION ATTACHMENT TO AMENDED AND RESTATED LOAN AND SECURITY AGREEMENT 
 All
personal property of Borrower (herein referred to as “Borrower” or “Debtor”) whether presently existing or hereafter created or acquired, and wherever located, including, but not limited to: 

All personal property of Debtor of every kind, whether presently existing or hereafter created or acquired, and wherever located,
including but not limited to: (a) all accounts (including health-care-insurance receivables), chattel paper (including tangible and electronic chattel paper), deposit accounts, documents (including negotiable documents), equipment (including
all accessions and additions thereto), general intangibles (including payment intangibles and software), goods (including fixtures), instruments (including promissory notes), inventory (including all goods held for sale or lease or to be furnished
under a contract of service, and including returns and repossessions), investment property (including securities and securities entitlements), letter of credit rights, money, and all of Debtor’s books and records with respect to any of the
foregoing, and the computers and equipment containing said books and records; and (b) any and all cash proceeds and/or noncash proceeds thereof, including, without limitation, insurance proceeds, and all supporting obligations and the security
therefor or for any right to payment. All terms above have the meanings given to them in the California Uniform Commercial Code, as amended or supplemented from time to time. 
 Notwithstanding the foregoing, the Collateral shall not include (x) any copyrights, patents, trademarks, trade names, trade secrets, service marks, domain names and registrations, applications,
renewals and extensions therefor, now owned or hereafter acquired, or other proprietary rights in technology, or any claims for damages by way of any past, present and future infringement of any of the foregoing (collectively, the “Intellectual
Property”); provided, however, that the Collateral shall include all accounts and general intangibles that consist of rights to payment from the sale, licensing or disposition of all or any part of, or rights in, the Intellectual Property (the
“Rights to Payment”); or (y) any property (i) which is nonassignable by its terms without the consent of the licensor thereof or another party (but only to the extent such prohibition on transfer is enforceable under applicable
law, including, without limitation, Sections 9406 and 9408 of the Code), or (ii) to the extent the granting of a security interest therein is contrary to applicable law, provided that upon the cessation of any such restriction or prohibition,
such property shall automatically become part of the Collateral. Notwithstanding the foregoing, if a judicial authority (including a U.S. Bankruptcy Court) holds that a security interest in the underlying Intellectual Property is necessary to have a
security interest in the Rights to Payment, then the Collateral shall automatically, and effective as of September 11, 2012, include the Intellectual Property to the extent necessary to permit perfection of Bank’s security interest in the
Rights to Payment. 

  

					
		 	8	 	September 11, 2012

 [ * ] = Certain
confidential information contained in this document, marked by brackets, has been omitted and filed separately with the Securities and Exchange Commission pursuant to Rule 24b-2 of the Securities Exchange Act of 1934, as amended. 

 EXHIBIT C 
 TECHNOLOGY & LIFE SCIENCES DIVISION 
 LOAN ANALYSIS

 LOAN ADVANCE/PAYDOWN REQUEST FORM 
 DEADLINE FOR SAME DAY PROCESSING IS 3:00* P.M., P.S.T. 
 DEADLINE FOR EQUIPMENT
ADVANCES IS 3:00 P.M., P.S.T.** 
 DEADLINE FOR WIRE TRANSFERS IS 1:30 P.M., P.S.T. 

*At month end and the day before a holiday, the cut off time is 1:30 P.M., P.S.T. 

**Subject to 3 day advance notice. 
  

									
	 To: Loan Analysis
 FAX #: (650)
462-6061
	  	DATE:	  	                             
                         	  	TIME:	  	                             
                         

 

									
	 	 	 	 
	FROM:	  	  
	  		  	TELEPHONE REQUEST (For Bank Use Only):
	 	  	Borrower’s Name	  		  		  	 
	FROM:	  	  
	  		  	The following person is authorized to request the loan payment transfer/loan advance on the
designated account and is known to me.
	 	  	Authorized Signer’s Name	  		  
	 			 	 
	FROM:	  	  
	  		  		  	  

	 	  	Authorized Signature (Borrower)	  		  		  	Authorized Request & Phone #
	 			 	 
	PHONE #:	  	  
	  		  		  	  

	 	  		  		  		  	Received by (Bank) & Phone #
	FROM ACCOUNT#:	  	  
	  		  		  	 
	(please include Note number, if applicable)	  		  		  	  

	TO ACCOUNT #:	  	  
	  		  		  	Authorized Signature (Bank)
	(please include Note number, if applicable)	  	 	  	 	  	 

  

													
	REQUESTED TRANSACTION TYPE	  	REQUESTED DOLLAR AMOUNT	  	For Bank Use Only
	 			 			 
	PRINCIPAL INCREASE* (ADVANCE)	 		  	$                             
                              	 	 	  	Date Rec’d:	 		 	 
	PRINCIPAL PAYMENT (ONLY)	 		  	$                             
                              	 	 	  	Time:	 		 	 
	 	 		  		 	 	  	Comp. Status:	 	    YES    	 	    NO    
	OTHER INSTRUCTIONS:	 		  		 	 	  	Status Date:	 		 	 
	
 
	  	Time:	 		 	 
	
 
	  	Approval:	 		 	 
	
 
	  		 		 	 
	 	  	 	 	 	 	 

 All representations and warranties of Borrower stated in the Loan Agreement are true, correct and complete in all
material respects as of the date of the telephone request for and advance confirmed by this Borrowing Certificate; provided, however, that those representations and warranties the date expressly referring to another date shall be true, correct and
complete in all material respects as of such date. 
  

									
	*IS THERE A WIRE REQUEST TIED TO THIS LOAN ADVANCE? (PLEASE CIRCLE ONE)	 	YES	 	NO

 If YES, the Outgoing Wire Transfer Instructions must be completed below. 
  

							
	OUTGOING WIRE TRANSFER INSTRUCTIONS	  	
    Fed Reference Number    
  
	  	
Bank Transfer Number
  

	The items marked with an asterisk
(*) are required to be completed.
	*Beneficiary Name	  	 
	*Beneficiary Account Number	  	 
	*Beneficiary Address	  	 
	Currency Type	  	US DOLLARS ONLY
	*ABA Routing Number (9 Digits)	  	 
	*Receiving Institution Name	  	 
	*Receiving Institution Address	  	 
	*Wire Amount	  	$

  
 [ * ] = Certain
confidential information contained in this document, marked by brackets, has been omitted and filed separately with the Securities and Exchange Commission pursuant to Rule 24b-2 of the Securities Exchange Act of 1934, as amended. 

 EXHIBIT D 
 COMPLIANCE CERTIFICATE 
  

					
	Please send all Required Reporting to:	  		  	Comerica Bank
		  		  	Technology & Life Sciences Division
		  		  	Loan Analysis Department
		  		  	Five Palo Alto Square, Suite 800
		  		  	3000 El Camino Real
		  		  	Palo Alto, CA 94306
		  		  	Phone: (650) 846-6820
		  		  	Fax: (650) 462-6061
		  		  	

 FROM:             diaDexus, Inc. 

The undersigned authorized Officer of diaDexus, Inc. (“Borrower”), hereby certifies that in accordance with the terms and conditions of the
AMENDED AND RESTATED LOAN AND SECURITY AGREEMENT between Borrower and Bank (the “Agreement”), (i) Borrower is in complete compliance for the period ending
                                         
                                with all required covenants, including without limitation
the ongoing registration of intellectual property rights in accordance with Section 6.8, except as noted below and (ii) all representations and warranties of Borrower stated in the Agreement are true and correct in all material respects as
of the date hereof. Attached herewith are the required documents supporting the above certification. The Officer further certifies that all quarterly and annual financial statements attached are prepared in accordance with Generally Accepted
Accounting Principles (GAAP) and are consistently applied from one period to the next except as explained in an accompanying letter or footnotes. 
 Please indicate compliance status by circling Yes/No under “Complies” or “Applicable” column. 
  

							
	 REPORTING COVENANTS
	  	 REQUIRED
	  	COMPLIES
				
	Company Prepared Monthly F/S	  	Monthly, w/in 30 days	  	YES	  	NO
	Company Prepared Quarterly F/S	  	Quarterly, w/in 45 days	  	YES	  	NO
	Compliance Certificate	  	Monthly, within 30 days	  	YES	  	NO
	CPA Audited, Unqualified F/S	  	Annually, within 120 days of FYE	  	YES	  	NO
	Annual Business Plan (incl. operating budget)	  	By 1/31	  	YES	  	NO
	Audit	  	Semi-annual	  	YES	  	NO
				
	10-Q	  	Quarterly, within 5 days of SEC filing (50 days)	  	YES	  	NO
	10-K	  	Annually, within 5 days of SEC filing (95 days)	  	YES	  	NO
				
	Total amount of Borrower’s cash and investments	  	Amount: $                           
                                         
    	  	YES	  	NO
	Total amount of Borrower’s cash and	  	Amount: $                           
                                         
    	  	YES	  	NO
	 investments maintained with Bank
	  		  		  	
			
	 REPORTING COVENANTS
	  	 DESCRIPTION
	  	APPLICABLE
				
	Legal Action > $100,000 (Sect. 6.2(iv))	  	Notify promptly upon notice
                                      	  	YES	  	NO
	Inventory Disputes > $100,000 (Sect. 6.3)	  	Notify promptly upon notice
                                      	  	YES	  	NO
	Mergers & Acquisitions > $100,000 (Sect. 7.3)	  	Notify promptly upon notice
                                      	  	YES	  	NO
	Cross default with other agreements	  	Notify promptly upon notice
                                      	  	YES	  	NO
	> $100,000 (Sect. 8.7)	  		  	YES	  	NO
	Judgment > $100,000 (Sect. 8.9)	  	Notify promptly upon notice
                                      	  	YES	  	NO

  
 [ * ] = Certain
confidential information contained in this document, marked by brackets, has been omitted and filed separately with the Securities and Exchange Commission pursuant to Rule 24b-2 of the Securities Exchange Act of 1934, as amended. 

													
	 FINANCIAL COVENANTS
	  	 REQUIRED
	 	  	 	 ACTUAL
	 	 	  	 COMPLIES

				
	TO BE TESTED MONTHLY, UNLESS OTHERWISE NOTED:	 		  		  	
							
	 Minimum Revenues (Performance to Plan)
	  	80% of Plan*	 		 	                    %	 		  	YES	  	NO
						
	 OTHER COVENANTS
	  	 REQUIRED
	 	  	 	 ACTUAL
	 	 	  	 COMPLIES

							
	Permitted Indebtedness for equipment leases	  	<$250,000	 		 	                        	 		  	YES	  	NO
	Permitted Investments for stock repurchase	  	<$100,000	 		 	                        	 		  	YES	  	NO
	Permitted Investments for subsidiaries	  	<$100,000	 		 	                        	 		  	YES	  	NO
	Permitted Investments for employee loans	  	<$250,000	 		 	                        	 		  	YES	  	NO
	Permitted Investments for joint ventures	  	<$100,000	 		 	                        	 		  	YES	  	NO
	Permitted Liens for equipment leases	  	<$250,000	 		 	                        	 		  	YES	  	NO
	Permitted Transfers	  	<$100,000**	 		 	                        	 		  	YES	  	NO

  

	*	See Annex I to Schedule of Exceptions 

	**	See also Annex II to Schedule of Exceptions 

Please Enter Below Comments Regarding Violations: 
 The Officer further acknowledges that at any time Borrower is not in compliance with all the terms set forth in the Agreement, including, without limitation, the financial covenants, no credit extensions
will be made. 
  

			
	Very truly yours,	 	
		
	  
	 	
	Authorized Signer	 	
		
	 Name:
	 	
		
	 Title:
	 	

  
 [ * ] = Certain
confidential information contained in this document, marked by brackets, has been omitted and filed separately with the Securities and Exchange Commission pursuant to Rule 24b-2 of the Securities Exchange Act of 1934, as amended. 

 SCHEDULE OF EXCEPTIONS 

TO AMENDED AND RESTATED LOAN AND SECURITY AGREEMENT 
 Permitted Indebtedness (Exhibit A) 
 None. 

Permitted Investments (Exhibit A) 

There are several securities totaling approximately $10 million held with Comerica Securities, Inc. as of July 31, 2012. 

Permitted Liens (Exhibit A) 
 None.

 Prior Names (Section 5.5) 

VaxGen, Inc. 
 diaDexus, LLC 

Litigation (Section 5.6) 
 None.

 Inbound Licenses (Section 5.12) 
 Collaboration and License Agreement, dated as of September 2, 1997 (the “Collaboration Agreement”), by and among diaDexus, LLC, SmithKline Beecham Corp., SmithKline Beecham p.l.c., and
Incyte Pharmaceuticals, Inc. 
 Amendment No. 1 to the Collaboration Agreement, dated as of February , 1998. 

Amendment No. 2 to the Collaboration Agreement, dated as of July , 1998. 
 Amendment to the Collaboration Agreement, dated as of May 4, 1999. 
 Amendment No. 3 to
the Collaboration Agreement, dated as of July 28, 1999. 
 Amendment No. 4 to the Collaboration Agreement, dated as of
February 17, 2000. 
 Letter Amendment to Collaboration Agreement, dated as of March 30, 2000. 

[ * ] 
 [ * ] 

[ * ] 
 Diagnostics License Agreement,
dated December 9, 2004, by and between diaDexus, Inc. and ICOS Corp. 
 [ * ] 

[ * ] 
 [ * ] 

  
 [ * ] = Certain
confidential information contained in this document, marked by brackets, has been omitted and filed separately with the Securities and Exchange Commission pursuant to Rule 24b-2 of the Securities Exchange Act of 1934, as amended. 

 SB/HGS Diagnostic License Agreement, effective as of July 24, 1997, by and among SmithKline Beecham
Corp., SmithKline Beecham p.l.c. and Human Genome Services, Inc. 
 [ * ] 
 [ * ] 
 [ * ] 
 [ * ] 
 [ * ] 
 [ * ] 

  
 [ * ] = Certain
confidential information contained in this document, marked by brackets, has been omitted and filed separately with the Securities and Exchange Commission pursuant to Rule 24b-2 of the Securities Exchange Act of 1934, as amended. 

 ANNEX I 
 (Board of Directors-approved Monthly Projections) 
 [ * ]

  

					
		 	1	 	

 [ * ] = Certain confidential information contained in this document, marked by brackets, has been omitted and
filed separately with the Securities and Exchange Commission pursuant to Rule 24b-2 of the Securities Exchange Act of 1934, as amended. 

 ANNEX II 
 (Equipment which may be disposed of as Permitted Transfer) 
  

			
	  
 diaDexus, Inc. - Assets Held For Sale – Details - As of July 31, 2012
  
	  	 
	 	  	 
	 	  	 
	 Description
	  	FMV
	  	  	  
	  
 Cabinets x 18
  
	  	  

[ * ]

	  
 Buffer Preparation Tank 2000L, SS w/Agitator A-2100, jacketed
  
	  	  

[ * ]

	  
 Buffer Prep Tank w/ Lighning EV1PFloor Mount Agitator - A2110 w/ portable
 tank, Buffer Prep Tank Control panel pH/conductivity monitoring
  
  
	  	  

[ * ]

	  
 Floor Scale - SC2100
  
	  	  

[ * ]

	  
 Safeaire Hood
  
	  	  

[ * ]

	  
 Balance SG16001, 16,100 gram capacity X 1 gram readability, or 3200 g at .1 gram,
 360mm X280MM pan size
  
	  	  

[ * ]

	  
 HOT PLATE/STIR,10X10 120VPC620
  
	  	  

[ * ]

	  
 Climet Particle Counter CI-450
  
	  	  

[ * ]

	  
 Portable return pump w/ cart
  
	  	  

[ * ]

	  
 8’ Biosafety Cabinet, 541934 sn 10774ClassIIA A/BC 2003 model
  

 
	  	  

[ * ]

	  
 5’ Baker Co, edgeguard, laminar Flow Hood and blue Pump
  
	  	  

[ * ]

	  
 BALANCE SG16001, 16,100 gram capacity X 1 gram readability, or 3200 g at .1
 gram, 360mm X280MM pan size
  
	  	  

[ * ]

	  
 Wave Warmer/Mixer - 20/50EH
  
	  	  

[ * ]

	  
 Climet Particle Counter CI-450
  
	  	  

[ * ]

	  
 Climet Particle Counter CI-450
  
	  	  

[ * ]

	  
 Climet Particle Counter CI-450
  
	  	  

[ * ]

	  
 200L Bioreactor with a master flex easy load pump drive and 7 Watson Marlow
 pumps (two blue 300 series, three yellow 600series, two dark blue 700 series)
  

 
	  	  

[ * ]

 

  

					
		 	1	 	

 [ * ] = Certain confidential information contained in this document, marked by brackets, has been omitted and
filed separately with the Securities and Exchange Commission pursuant to Rule 24b-2 of the Securities Exchange Act of 1934, as amended. 

			
	  
 1000L Bioreactor - R-1400
  
	  	  

[ * ]

	  
 1000 L BRX agitator
  
	  	  

[ * ]

	  
 Baldor Pump with Cart
  
	  	  

[ * ] 

	  
 STFIR, Tube Fuser (1/4”,3/8”,1/2”, 3/4”)
  
	  	  

[ * ] 

	  
 PHI 660 PH MTR,BNCHTP,PH,MV
  
	  	  

[ * ] 

	  
 Micro Osmometer Series 3300
  
	  	  

[ * ] 

	  
 Liftoflex Lift - Series 20500, 275 lbs max
  
	  	  

[ * ] 

	  
 Millipore Integritest ITX Exacta - Filter Integrity Tester
  
	  	  

[ * ] 

	  
 Millipore Integritest ITX Exacta - Filter Integrity Tester
  
	  	  

[ * ] 

	  
 Precision Water Bath
  
	  	  

[ * ] 

	  
 Scale PG10003-2
  
	  	  

[ * ] 

	  
 Barnstead MaxQ4000 Shaker E Class
  
	  	  

[ * ] 

	  
 60 cm diameter column
  
	  	  

[ * ] 

	  
 Small column press
  
	  	  

[ * ] 

	  
 60 cm diameter column
  
	  	  

[ * ] 

	  
 60 cm diameter column
  
	  	  

[ * ] 

	  
 Millipore K Prime 400
  
	  	  

[ * ] 

	  
 Millipore K Prime 400
  
	  	  

[ * ] 

	  
 Slurry Vessel
  
	  	  

[ * ] 

	  
 PHI 660 PH MTR,BNCHTP,PH,MV
  
	  	  

[ * ] 

	  
 Wave Rocker 20/50 EH
  
	  	  

[ * ] 

	  
 Sartorius Scale
  
	  	  

[ * ] 

	  
 Floor Scale
  
	  	  

[ * ] 

	  
 Lynx Floor Scale
  
	  	  

[ * ] 

	  
 Levtech Monarch Mixer
  
	  	  

[ * ] 

	  
 Levtech Monarch Mixer
  
	  	  

[ * ] 

  

					
		 	2	 	

 [ * ] = Certain confidential information contained in this document, marked by brackets, has been omitted and
filed separately with the Securities and Exchange Commission pursuant to Rule 24b-2 of the Securities Exchange Act of 1934, as amended. 

			
	  
 Millipore K Prime 40-II
  
	  	  

[ * ]

	  
 Millipore TFF
  
	  	  

[ * ] 

	  
 BALANCE SG16001, 16,100 gram capacity X 1 gram readability, or 3200 g at .1 gram, 360mm X280MM pan size

 
	  	  

[ * ] 

	  
 Millipore Isopak Slurry Transfer Skid
  
	  	  

[ * ] 

	  
 Harvest Storage Vessel - V1530, 1,500 lt.
  
	  	  

[ * ] 

	  
 Agitator for V1530
  
	  	  

[ * ]

	  
 Harvest Storage Vessel Vent Filter - F1530
  
	  	  

[ * ]

	  
 Harvest Storage Vessel Filter - F1540
  
	  	  

[ * ]

	  
 UF/DF Skid - TFF2400
  
	  	  

[ * ] 

	  
 Harvest Depth Filter System- F1520
  
	  	  

[ * ] 

	  
 Disc Stack BTPX-205 steam-sterilizable centrifuge, cell separation up to 1200 L/hour and
 Containment tank
  
	  	  

[ * ] 

	  
 Fristam Pump with cart
  
	  	  

[ * ] 

	  
 Upstream Autoclave - AUT3200
  
	  	  

[ * ] 

	  
 Clean Steam Sampler
  
	  	  

[ * ] 

	  
 Millipore Millistak + Pod holder
  
	  	  

[ * ] 

	  
 COP Tank 200 Gallon
  
	  	  

[ * ] 

	  
 500L SS bin for buffers (x16)
  
	  	  

[ * ] 

	  
 200L SS bin for buffers (x4)
  
	  	  

[ * ] 

	  
 Plastic Resin Bins (x8)
  
	  	  

[ * ] 

	  
 Resin Bin holders (x8)
  
	  	  

[ * ] 

	  
 Plastic Carboys (x5)
  
	  	  

[ * ] 

	  
 Millipore Filter housings - Quantity (x8)
  
	  	  

[ * ] 

	  
 5’, Purifier, Class II Biosafety Cabinet,
  
	  	  

[ * ] 

	  
 8’, 36212/36213, Type II Bio Safety Hood
  
	  	  

[ * ] 

	  
 8’, 36212/36213, Type II Bio Safety Hood
  
	  	  

[ * ] 

  

					
		 	3	 	

 [ * ] = Certain confidential information contained in this document, marked by brackets, has been omitted and
filed separately with the Securities and Exchange Commission pursuant to Rule 24b-2 of the Securities Exchange Act of 1934, as amended. 

			
	  
 8’, 36212043726, Type II Bio Safety Hood
  
	  	  

[ * ]

	  
 5’ Fume Hood w/ Cabinet, 2 each
  
	  	  

[ * ] 

	  
 5’ Fume Hood w/ Cab., 4 each
  
	  	  

[ * ] 

	  
 45 Gallon, A145, Flammable Cab, 3 each
  
	  	  

[ * ] 

	  
 8’ Steriguard, SQ600-SL-44090V
  
	  	  

[ * ] 

	  
 6’, Purifier, Class II, Biosafety Cabinet
  
	  	  

[ * ] 

	  
 6’, 36212043726, Type II Biosafety Cabinets, 2 each
  
	  	  

[ * ] 

	  
 12 gal, Flammable Storage Cabinet
  
	  	  

[ * ] 

	  
 6’ Fume Hood w/ Cabinet
  
	  	  

[ * ] 

	  
 6’, 1186, Class II A/BB Biosafety cabinet
  
	  	  

[ * ] 

	  
 6’, 36212043726, Type II Biosafety Cabinet
  
	  	  

[ * ] 

	  
 Floor Scale - SC2100
  
	  	  

[ * ] 

	  
 GS-6KR, refrigerated table top centrifuge
  
	  	  

[ * ] 

	  
 SS Tank, Jacketed, 6,000liter
  
	  	  

[ * ] 

	  
 4 chamber distiller systems., Integrated by Flour Daniels2003 vintage, 700 L/hr WFI & 1100
 pounds of clean steam/hr
  
	  	  

[ * ]

	  
 DI Water System, 7 gals/min, 12,000 liter storage tank, 2 ea
  
	  	  

[ * ] 

	  
 Hydrogen Dewer
  
	  	  

[ * ] 

	  
 Cold Room
  
	  	  

[ * ] 

	  
 House Vacuum System w/ tank 2 ea. 50 Gallon/200 Gallon117 CFM, sn C-12690
  
	  	  

[ * ] 

	  
 Oil Free Air Compressor w/ Tank and Zander dryer
  
	  	  

[ * ] 

	  
 Neutralization System
  
	  	  

[ * ] 

  

					
		 	4	 	

 [ * ] = Certain confidential information contained in this document, marked by brackets, has been omitted and
filed separately with the Securities and Exchange Commission pursuant to Rule 24b-2 of the Securities Exchange Act of 1934, as amended. 

			
	  
 Boiler, natural Gas, “Pro fire”, max 5,500 MBH, sn 9144 and 8502 2 ea.
  
	  	  

[ * ]

	  
 Cold Room
  
	  	  

[ * ]

	  
 180 Ton Chiller
  
	  	  

[ * ]

	  
 CIP System
  
	  	  

[ * ]

	  
 Electric walk-behind stacker
  
	  	  

[ * ]

	  
 Forklift, Propane, low profile, hard wheel, 5800lb cap,
  
	  	  

[ * ]

	  
 Total
  
	  	  

[ * ]

  

					
		 	5	 	

 [ * ] = Certain confidential information contained in this document, marked by brackets, has been omitted and
filed separately with the Securities and Exchange Commission pursuant to Rule 24b-2 of the Securities Exchange Act of 1934, as amended. 

 Corporation Resolutions and Incumbency Certification 

Authority to Procure Loans 

 
 I certify that I am the duly elected and qualified
Secretary of diaDexus, Inc.; that the following is a true and correct copy of resolutions duly adopted by the Board of Directors of the Corporation in accordance with its bylaws and applicable statutes. 

Copy of Resolutions: 
 Be it Resolved,
That: 
  

	1.	Any one (1) of the following
                                        
(insert titles only) of the Corporation are/is authorized, for, on behalf of, and in the name of the Corporation to: 

  

	 	(a)	Negotiate and procure loans, letters of credit and other credit or financial accommodations from Comerica Bank (“Bank”), a Texas banking association, from
time to time, in an unlimited amount. 

  

	 	(b)	Discount with the Bank, commercial or other business paper belonging to the Corporation made or drawn by or upon third parties, without limit as to amount;

  

	 	(c)	Purchase, sell, exchange, assign, endorse for transfer and/or deliver certificates and/or instruments representing stocks, bonds, evidences of Indebtedness or other
securities owned by the Corporation, whether or not registered in the name of the Corporation; 

  

	 	(d)	Give security for any liabilities of the Corporation to the Bank by grant, security interest, assignment, lien, deed of trust or mortgage upon any real or personal
property, tangible or intangible of the Corporation; 

  

	 	(e)	Issue a warrant or warrants to purchase the Corporation’s capital stock; and 

 

	 	(f)	Execute and deliver in form and content as may be required by the Bank any and all notes, evidences of Indebtedness, applications for letters of credit, guaranties,
subordination agreements, loan and security agreements, financing statements, assignments, liens, deeds of trust, mortgages, trust receipts and other agreements, instruments or documents to carry out the purposes of these Resolutions, ,and any and
all amendments or modifications thereto, any or all of which may relate to all or to substantially all of the Corporation’s property and assets. 

  

	2.	Said Bank be and it is authorized and directed to pay the proceeds of any such loans or discounts as directed by the persons so authorized to sign, whether so payable
to the order of any of said persons in their individual capacities or not, and whether such proceeds are deposited to the individual credit of any of said persons or not; 

 

	3.	Any and all agreements, instruments and documents previously executed and acts and things previously done to carry out the purposes of these Resolutions are ratified,
confirmed and approved as the act or acts of the Corporation. 

  

	4.	These Resolutions shall continue in force, and the Bank may consider the holders of said offices and their signatures to be and continue to be as set forth in a
certified copy of these Resolutions delivered to the Bank, until notice to the contrary in writing is duly served on the Bank (such notice to have no effect on any action previously taken by the Bank in reliance on these Resolutions).

  

	5.	Any person, corporation or other legal entity dealing with the Bank may rely upon a certificate signed by an officer of the Bank to effect that these Resolutions and
any agreement, instrument or document executed pursuant to them are still in full force and effect and binding upon the Corporation. 

  

	6.	The Bank may consider the holders of the offices of the Corporation and their signatures, respectively, to be and continue to be as set forth in the Certificate of the
Secretary of the Corporation until notice to the contrary in writing is duly served on the Bank. 

 I further
certify that the above Resolutions are in full force and effect as of the date of this Certificate; that these Resolutions and any borrowings or financial accommodations under these Resolutions have been properly noted in the corporate books and
records, and have not been rescinded, annulled, revoked or modified; that neither the foregoing Resolutions nor any actions to be taken pursuant to them are or will be in contravention of any provision of the articles of incorporation or bylaws of
the Corporation or of any agreement, indenture or other instrument to which the Corporation is a party or by which it is bound; and that neither the articles of incorporation nor bylaws of the Corporation nor any agreement, indenture or other
instrument to which the Corporation is a party or by which it is bound require the vote or consent of shareholders of the Corporation to authorize any act, matter or thing described in the foregoing Resolutions. 

  

					
		 	1	 	

 [ * ] = Certain confidential information contained in this document, marked by brackets, has been omitted and
filed separately with the Securities and Exchange Commission pursuant to Rule 24b-2 of the Securities Exchange Act of 1934, as amended. 

 I further certify that the following named persons have been duly elected to the offices set opposite their
respective names, that they continue to hold these offices at the present time, and that the signatures which appear below are the genuine, original signatures of each respectively: 

(PLEASE SUPPLY GENUINE SIGNATURES OF AUTHORIZED SIGNERS BELOW) 

 

					
	NAME (Type or Print)	  	TITLE	  	SIGNATURE
			
	  
	  	  
	  	  

			
	  
	  	  
	  	  

			
	  
	  	  
	  	  

			
	  
	  	  
	  	  

			
	  
	  	  
	  	  

			
	  
	  	  
	  	  

			
	  
	  	  
	  	  

 In Witness Whereof, I have affixed my name as Secretary and have caused the corporate seal (where available) of said
Corporation to be affixed on
                                        .

  

			
	  
	 	
	Secretary	 	

 *** 
  

			
	The Above Statements are Correct.	 	  

		 	SIGNATURE OF OFFICER OR DIRECTOR OR, IF NONE. A SHAREHOLDER OTHER THAN SECRETARY WHEN SECRETARY IS AUTHORIZED TO SIGN ALONE.

 Failure to complete the above when the Secretary is authorized to sign alone shall constitute a certification by the
Secretary that the Secretary is the sole Shareholder, Director and Officer of the Corporation. 

  

					
		 	2	 	

 [ * ] = Certain confidential information contained in this document, marked by brackets, has been omitted and
filed separately with the Securities and Exchange Commission pursuant to Rule 24b-2 of the Securities Exchange Act of 1934, as amended. 

 COMERICA BANK 
 Member FDIC 
 ITEMIZATION OF AMOUNT FINANCED 

DISBURSEMENT INSTRUCTIONS 
 (Growth Capital) 
  

					
	Name(s): diaDexus, Inc.	  	Date: September 11, 2012

 

			
	        $5,000,000	  	credited to deposit account No.
                         when Growth Capital Advances are requested or disbursed to Borrower by cashiers check or wire
transfer
	
	Amounts paid to others on your behalf:
		
	        $                      
      	  	to Comerica Bank for Loan Fee
		
	        $	  	to Comerica Bank for Document Fee
		
	        $	  	to Comerica Bank for accounts receivable audit (estimate)
		
	        $	  	to Bank counsel fees and expenses
		
	        $	  	to
                            
		
	        $	  	to
                            
		
	        $	  	TOTAL (AMOUNT FINANCED)

 Upon consummation of this transaction, this document will also serve as the authorization for Comerica Bank to disburse
the loan proceeds as stated above. 
  

									
		 	  
	 		 	  
	 	
		 	Signature	 		 	Signature	 	

  

					
		 	1	 	

 [ * ] = Certain confidential information contained in this document, marked by brackets, has been omitted and
filed separately with the Securities and Exchange Commission pursuant to Rule 24b-2 of the Securities Exchange Act of 1934, as amended. 

  
 

 
 Agreement to Furnish Insurance to Amended and Restated Loan and Security Agreement 

 
 (Herein called “Bank”) 

Borrower(s): diaDexus, Inc. 
 I understand that
the Security Agreement or Deed of Trust which I executed in connection with this transaction requires me to provide a physical damage insurance policy including a Lenders Loss Payable Endorsement in favor of the Bank as shown below, within ten
(10) days from the date of this agreement. 
 The following minimum insurance must be provided according to the terms of the security
documents. 
  

							
	  ̈    AUTOMOBILES, TRUCKS, RECREATIONAL
 VEHICLES
PROPERTY
	 	x    MACHINERY
 & EQUIPMENT: MISCELLANEOUS PERSONAL PROPERTY
	 Comprehensive & Collision
	 		 	 Fire & Extended Coverage

	 Lender’s Loss Payable Endorsement
	 		 	 Lender’s Loss Payable Endorsement

		 		 		 	  ̈    Breach of Warranty Endorsement

	 ̈ 
   BOATS	 	 ̈    AIRCRAFT

	 All Risk Hull Insurance
	 		 	 All Risk Ground & Flight Insurance

	 Lender’s Loss Payable Endorsement
	 		 	 Lender’s Loss Payable Endorsement

	  ̈    Breach of Warranty Endorsement
	 		 	  ̈    Breach of Warranty Endorsement

	 ̈ 
   MOBILE HOMES	 	 ̈    REAL
 PROPERTY
	 Fire, Theft & Combined Additional Coverage
	 		 	 Fire & Extended Coverage

	 Lender’s Loss Payable Endorsement
	 		 	 Lender’s Loss Payable Endorsement

	  ̈    Earthquake
	 		 	  ̈    All Risk Coverage

		 		 		 	  ̈    Special Form Risk Coverage

		 		 		 	  ̈

		 		 		 	  ̈    Earthquake

		 		 		 	  ̈    Other  
                                         
                                         
  

	x 
   INVENTORY	 		 	
	 ̈   
 Other  	 	  

		 	  

		 	  

 I may obtain the required insurance from any company that is acceptable to the Bank, and will deliver proof of such
coverage with an effective date of September 11, 2012 or earlier. 
 I understand and agree that if I fail to deliver proof of insurance to
the Bank at the address below, or upon the lapse or cancellation of such insurance, the Bank may procure Lender’s Single Interest Insurance or other similar coverage on the property. If the Bank procures insurance to protect its interest in the
property described in the security documents, the cost for the insurance will be added to my indebtedness as provided in the security documents. Lender’s Single Interest Insurance shall cover only the Bank’s interest as a secured party,
and shall become effective at the earlier of the funding date of this transaction or the date my insurance was canceled or expired. I UNDERSTAND THAT LENDER’S SINGLE INTEREST INSURANCE WILL PROVIDE ME WITH ONLY LIMITED PROTECTION AGAINST
PHYSICAL DAMAGE TO THE COLLATERAL, UP TO THE BALANCE OF THE LOAN, HOWEVER, MY EQUITY IN THE PROPERTY WILL NOT BE INSURED. FURTHER, THE INSURANCE WILL NOT PROVIDE MINIMUM PUBLIC LIABILITY OR PROPERTY DAMAGE INDEMNIFICATION AND DOES NOT MEET THE
REQUIREMENTS OF THE FINANCIAL RESPONSIBILITY LAW. 
 CALIFORNIA CIVIL CODE SECTION 2955.5. HAZARD INSURANCE DISCLOSURE: No lender shall require
a borrower, as a condition of receiving or maintaining a loan secured by real property, to provide hazard insurance coverage against risks to the improvements on that real property in an amount exceeding the replacement value of the improvements on
the property. 
 
  

					
		    	Bank Address for Insurance Documents:	 	
		 	
		    	                Comerica Bank – Collateral Operations,
Mail Code 6514        	 	
		    	                1508 W. Mockingbird
Lane                                         
         	 	
		    	                Dallas, Texas
75235                                        
                     	 	
		    	 	 	

  

					
		 	1	 	

 [ * ] = Certain confidential information contained in this document, marked by brackets, has been omitted and
filed separately with the Securities and Exchange Commission pursuant to Rule 24b-2 of the Securities Exchange Act of 1934, as amended. 

 I acknowledge having read the provisions of this agreement, and agree to its terms. I authorize the Bank to
provide to any person (including any insurance agent or company) any information necessary to obtain the insurance coverage required. 
  

					
	OWNER(S) OF COLLATERAL:	 		 	DATED: September 11, 2012
			
	  
	 		 	  

			
	  
	 		 	  

  

							
	INSURANCE VERIFICATION	  	 	  	 	  	
	 			 
	Date                   
                          	  		  	Phone                            
                                 	  	
	Agents
Name                                        
                                         
    	  		  	Person Talked
To                                        
 	  	
	Agents Address               
                                         
                                         
                                         
                                       	  	
	Insurance
Company                                        
                                         
                                         
                                   	  	
	Policy
Number(s)                                       
                                         
                                         
                                    	  	
	Effective Dates:
From                                        
                                         
            	  	To:                          
                                         
 	  	
	Deductible
$                                         
                                         
                            	  	Comments:                         
                             	  	
	 	  	 	  	 	  	

  

					
		 	2	 	

 [ * ] = Certain confidential information contained in this document, marked by brackets, has been omitted and
filed separately with the Securities and Exchange Commission pursuant to Rule 24b-2 of the Securities Exchange Act of 1934, as amended. 

			
	 COMERICA BANK

 
 Member FDIC
	  	  
 AUTOMATIC DEBIT AUTHORIZATION
  

	 	  	 

  

	
	 To: Comerica Bank

	 
	 Re: Loan #
                                         
       

	 
	 You are hereby authorized and instructed to charge account No.
                                         
        in the name of diaDexus, Inc.
  

	 for principal, interest and other payments due on above referenced loan as set forth below and credit the loan referenced

above.

	 X
           Debit each interest payment as it becomes due according to the terms of the Signature Page to the Amended and Restated Loan and Security Agreement and any renewals or amendments
thereof.

	 
	 X
           Debit each principal payment as it becomes due according to the terms of the Amended and Restated Loan and Security Agreement and any renewals or amendments thereof.

	 
	 X
           Debit each payment for Bank Expenses as it becomes due according to the terms of the Amended and Restated Loan and Security Agreement and any renewals or amendments
thereof.

	 
	 This Authorization is to remain in full force and effect until revoked in writing.

 

  

					
	 Borrower Signature
	  	 Date

 

	 	  	 September
11, 2012
  

	 	  	 September 11, 2012

 

  
 [ * ] = Certain
confidential information contained in this document, marked by brackets, has been omitted and filed separately with the Securities and Exchange Commission pursuant to Rule 24b-2 of the Securities Exchange Act of 1934, as amended. 

 USA PATRIOT ACT 

NOTICE 

OF 

CUSTOMER IDENTIFICATION 
 IMPORTANT INFORMATION ABOUT PROCEDURES FOR OPENING A NEW ACCOUNT 
 To help the
government fight the funding of terrorism and money laundering activities, Federal law requires all financial institutions to obtain, verify, and record information that identifies each person who opens an account. 

WHAT THIS MEANS FOR YOU: when you open an account, we will ask your name, address, date of birth, and other information that will allow
us to identify you. We may also ask to see your driver’s license or other identifying documents. 

  

					
		 	2	 	

 [ * ] = Certain confidential information contained in this document, marked by brackets, has been omitted and
filed separately with the Securities and Exchange Commission pursuant to Rule 24b-2 of the Securities Exchange Act of 1934, as amended. 

					
	DEBTOR	  	 diaDexus, Inc.
	  	
			
	SECURED PARTY:	  	 COMERICA BANK
	  	

 EXHIBIT A to UCC Financing Statement 

COLLATERAL DESCRIPTION ATTACHMENT TO UCC NATIONAL FINANCING FORM 
 All personal property of Borrower (herein referred to as “Borrower” or “Debtor”) whether presently existing or hereafter created or acquired, and wherever located, including, but not
limited to: 
 All personal property of Debtor of every kind, whether presently existing or hereafter created or acquired, and
wherever located, including but not limited to: (a) all accounts (including health-care-insurance receivables), chattel paper (including tangible and electronic chattel paper), deposit accounts, documents (including negotiable documents),
equipment (including all accessions and additions thereto), general intangibles (including payment intangibles and software), goods (including fixtures), instruments (including promissory notes), inventory (including all goods held for sale or lease
or to be furnished under a contract of service, and including returns and repossessions), investment property (including securities and securities entitlements), letter of credit rights, money, and all of Debtor’s books and records with respect
to any of the foregoing, and the computers and equipment containing said books and records; and (b) any and all cash proceeds and/or noncash proceeds thereof, including, without limitation, insurance proceeds, and all supporting obligations and
the security therefor or for any right to payment. All terms above have the meanings given to them in the California Uniform Commercial Code, as amended or supplemented from time to time. 

Notwithstanding the foregoing, the Collateral shall not include (x) any copyrights, patents, trademarks, trade names, trade secrets,
service marks, domain names and registrations, applications, renewals and extensions therefor, now owned or hereafter acquired, or other proprietary rights in technology, or any claims for damages by way of any past, present and future infringement
of any of the foregoing (collectively, the “Intellectual Property”); provided, however, that the Collateral shall include all accounts and general intangibles that consist of rights to payment from the sale, licensing or disposition of all
or any part of, or rights in, the Intellectual Property (the “Rights to Payment”); or (y) any property (i) which is nonassignable by its terms without the consent of the licensor thereof or another party (but only to the extent
such prohibition on transfer is enforceable under applicable law, including, without limitation, Sections 9406 and 9408 of the Code), or (ii) to the extent the granting of a security interest therein is contrary to applicable law, provided that
upon the cessation of any such restriction or prohibition, such property shall automatically become part of the Collateral. Notwithstanding the foregoing, if a judicial authority (including a U.S. Bankruptcy Court) holds that a security interest in
the underlying Intellectual Property is necessary to have a security interest in the Rights to Payment, then the Collateral shall automatically, and effective as of September 11, 2012, include the Intellectual Property to the extent necessary
to permit perfection of Bank’s security interest in the Rights to Payment. 

  
 [ * ] = Certain
confidential information contained in this document, marked by brackets, has been omitted and filed separately with the Securities and Exchange Commission pursuant to Rule 24b-2 of the Securities Exchange Act of 1934, as amended.

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