Document:

Form of Warrant

 Exhibit 4.3 
 [FORM OF WARRANT] 
 NEITHER THIS SECURITY NOR THE SECURITIES INTO WHICH THIS SECURITY IS EXERCISABLE HAVE BEEN REGISTERED
WITH THE SECURITIES AND EXCHANGE COMMISSION OR THE SECURITIES COMMISSION OF ANY STATE IN RELIANCE UPON AN EXEMPTION FROM REGISTRATION UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), AND, ACCORDINGLY, MAY NOT BE
OFFERED OR SOLD EXCEPT PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT UNDER THE SECURITIES ACT OR PURSUANT TO AN AVAILABLE EXEMPTION FROM, OR IN A TRANSACTION NOT SUBJECT TO, THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT AND IN ACCORDANCE
WITH APPLICABLE STATE SECURITIES LAWS AS EVIDENCED BY A LEGAL OPINION OF COUNSEL TO THE TRANSFEROR REASONABLY ACCEPTABLE TO THE COMPANY TO SUCH EFFECT, THE SUBSTANCE OF WHICH SHALL BE REASONABLY ACCEPTABLE TO THE COMPANY. THIS SECURITY MAY BE
PLEDGED IN CONNECTION WITH A BONA FIDE MARGIN ACCOUNT WITH A REGISTERED BROKER-DEALER OR OTHER LOAN WITH A FINANCIAL INSTITUTION THAT IS AN “ACCREDITED INVESTOR” AS DEFINED IN RULE 501(a) UNDER THE SECURITIES ACT. 
 COMMON STOCK PURCHASE WARRANT 
 To
Purchase __________ Shares of Common Stock of 
 Verticalnet, Inc. 
 THIS COMMON STOCK PURCHASE WARRANT (this “Warrant”) CERTIFIES that, for value received, _____________ (the “Holder”),
is entitled, upon the terms and subject to the limitations on exercise and the conditions hereinafter set forth, at any time or from time to time on or after the 185th day following the date of issuance of this Warrant (such date, the
“Initial Exercise Date”) and on or prior to 5:00 p.m., New York time on the fifth anniversary of the date of this Warrant (the “Termination Date”) but not thereafter, to subscribe for and purchase from Verticalnet,
Inc., a corporation incorporated in the Commonwealth of Pennsylvania (the “Company”), up to ____________ shares (the “Warrant Shares”) of Common Stock, par value $0.01 per share, of the Company (the “Common
Stock”). The purchase price of one share of Common Stock (the “Exercise Price”) under this Warrant shall be $[        ], subject to adjustment hereunder. The Exercise Price and
the number of Warrant Shares for which the Warrant is exercisable shall be subject to adjustment as provided herein. Capitalized terms used and not otherwise defined herein shall have the meanings set forth in that certain Stock and Warrant Purchase
Agreement (the “Purchase Agreement”), dated as of June 1, 2007, among the Company and the purchasers signatory thereto. 
 Notwithstanding anything to the contrary set forth in this Warrant, this Warrant shall not be exercisable and at no time may the Holder exercise its purchase rights represented by this Warrant: 
 (a) if the number of shares of Common Stock to be issued pursuant to such conversion would exceed, when aggregated with all other shares of Common Stock
owned by such Holder at such time, the number of shares of Common Stock of the Company which would result in the such Holder beneficially owning (as determined in accordance with Section 13(d) and Section 16(b) of the Securities Exchange
Act of 1934, as amended, and the rules thereunder) more than 9.9% of all of the Common Stock outstanding at such time; 
 (b) while there are
any unpaid amounts outstanding under the Company’s $6.6 million in aggregate principal amount of senior secured convertible promissory notes due July 2007; or 
 (c) unless and until the shareholders of the Company approve both (i) an amendment to the Company’s Articles of Incorporation (the “Articles”) increasing the number of shares of Common Stock
authorized under the Articles by at least 35,000,000, which amendment has been duly filed with the Department of State of the Commonwealth of Pennsylvania and has become effective in accordance with the requirements of the Pennsylvania Business
Corporation Law (the “Articles Amendment”), and (ii) to the extent that the issuance of this Warrant and the other warrants issued pursuant to the Purchase Agreement constitute a change of control under the Nasdaq Marketplace
Rules, the approval of such change of control (the “Control Proposal” and together with the Articles Amendment, the “Shareholder Approval”). 

 1. Title to Warrant. Prior to the Termination Date and subject to compliance with applicable laws
and Section 7 of this Warrant, this Warrant and all rights hereunder are transferable, in whole or in part, at the office or agency of the Company by the Holder in person or by duly authorized attorney, upon surrender of this Warrant
together with the Assignment Form annexed hereto properly endorsed. The transferee shall sign an investment letter in form and substance reasonably satisfactory to the Company. 
 2. Authorization of Shares. If this Warrant is exercisable, the Company covenants that all Warrant Shares which may be issued upon the exercise of
the purchase rights represented by this Warrant will, upon exercise of the purchase rights represented by this Warrant, be duly authorized, validly issued, fully paid and nonassessable and free from all taxes, liens and charges in respect of the
issue thereof (other than taxes in respect of any transfer occurring contemporaneously with such issue and restrictions arising under applicable federal or state securities laws.) 
 3. Exercise of Warrant. 
 (a) Subject
to the restrictions set for in the second introductory paragraph of this Warrant, exercise of the purchase rights represented by this Warrant may be made at any time or times on or after the Initial Exercise Date and on or before the Termination
Date by surrender of this Warrant and delivery of a duly executed copy of the Notice of Exercise Form annexed hereto to the Company at its principal office (or such other office or agency of the Company as it may designate by notice in writing to
the registered Holder at the address of such Holder appearing on the books of the Company) along with payment of the aggregate Exercise Price of the shares thereby purchased by wire transfer or cashier’s check drawn on a United States bank.
Certificates for shares purchased hereunder shall be delivered to the Holder within seven (7) Trading Days from the delivery to the Company of the Notice of Exercise Form, surrender of this Warrant and payment of the aggregate Exercise Price as
set forth above (“Warrant Share Delivery Date”). This Warrant shall be deemed to have been exercised immediately prior to the close of business on the date the Notice of Exercise Form, this Warrant and the aggregate Exercise Price
is delivered to the Company. The Warrant Shares shall be deemed to have been issued, and Holder or any other person so designated to be named therein shall be deemed to have become a holder of record of such shares for all purposes, as of the date
the Warrant has been exercised by payment to the Company of the Exercise Price and all taxes required to be paid by the Holder, if any, pursuant to Section 5 prior to the issuance of such shares, have been paid. If the Company fails to
deliver to the Holder a certificate or certificates representing the Warrant Shares pursuant to this Section 3(a) by the seventh Trading Day following the Warrant Share Delivery Date, then the Holder will have the right to rescind such
exercise. In addition to any other rights available to the Holder, if the Company fails to deliver to the Holder a certificate or certificates representing the Warrant Shares pursuant to an exercise by the seventh Trading Day after the Warrant Share
Delivery Date, and if after such day the Holder is required by its broker to purchase in a bona fide open market transaction shares of Common Stock to deliver in satisfaction of a sale by the Holder of the Warrant Shares which the Holder anticipated
receiving upon such exercise (a “Buy-In”), then the Company shall (1) pay in cash to the Holder the amount by which (x) the Holder’s total purchase price (including customary brokerage commissions, if any) for the
shares of Common Stock so purchased exceeds (y) the amount obtained by multiplying (A) the number of Warrant Shares that the Company was required to deliver to the Holder in connection with the exercise at issue, times (B) the price
at which the sell order giving rise to such purchase obligation was executed, and (2) at the option of the Holder, either reinstate the portion of the Warrant and equivalent number of Warrant Shares for which such exercise was not honored or
deliver to the Holder the number of shares of Common Stock that would have been issued had the Company timely complied with its exercise and delivery obligations hereunder. For example, if the Holder purchases in a Buy-In shares of Common Stock
having a total purchase price of $11,000 to cover the sale of shares of Common Stock with an aggregate sale price giving rise to such purchase obligation of $10,000, under clause (1) of the immediately preceding sentence the Company shall be
required to pay the Holder $1,000. The Holder shall provide the Company written notice indicating the amounts payable to the Holder in respect of the Buy-In, together with applicable confirmations and other evidence reasonably requested by the
Company. Nothing herein shall limit a Holder’s right to pursue any other remedies available to it hereunder, at law or in equity including, without limitation, a decree of specific performance and/or injunctive relief with respect to the
Company’s failure to timely deliver certificates representing shares of Common Stock upon exercise of the Warrant as required pursuant to the terms hereof. 

 (b) If this Warrant shall have been exercised in part, the Company shall, at the time of delivery of the
certificate or certificates representing Warrant Shares, deliver to Holder a new Warrant evidencing the rights of Holder to purchase the unpurchased Warrant Shares called for by this Warrant, which new Warrant shall in all other respects be
identical with this Warrant. 
 (c) Intentionally Omitted. 
 (d) If this Warrant is exercisable, this Warrant may also be exercised at such time by means of a “cashless exercise” in which the Holder shall be entitled to receive a certificate for the number of Warrant
Shares equal to the quotient obtained by dividing [(A-B) (X)] by (A), where: 
 (A) = the Closing Price on the Trading Day immediately
preceding the date of such election; 
 (B) = the Exercise Price of this Warrant, as adjusted as of the date of such election; and

 (X) = the number of Warrant Shares issuable upon exercise of this Warrant in accordance with the terms of this Warrant by means of a cash
exercise rather than a cashless exercise. 
 4. No Fractional Shares or Scrip. No fractional shares or scrip representing fractional
shares shall be issued upon the exercise of this Warrant. As to any fraction of a share which Holder would otherwise be entitled to purchase upon such exercise, the Company shall pay a cash adjustment in respect of such final fraction in an amount
equal to such fraction multiplied by the Exercise Price. 
 5. Charges, Taxes and Expenses. Issuance of certificates for Warrant
Shares shall be made without charge to the Holder for any issue or transfer tax or other incidental expense in respect of the issuance of such certificate, all of which taxes and expenses shall be paid by the Company, and such certificates shall be
issued in the name of the Holder or in such name or names as may be directed by the Holder; provided, however, that in the event certificates for Warrant Shares are to be issued in a name other than the name of the Holder, this Warrant
when surrendered for exercise shall be accompanied by the Assignment Form attached hereto duly executed by the Holder; and the Company may require, as a condition thereto, the payment of a sum sufficient to reimburse it for any transfer tax
incidental thereto. 
 6. Closing of Books. The Company will not close its stockholder books or records in any manner which prevents
the timely exercise of this Warrant, pursuant to the terms hereof. 
 7. Transfer, Continuing Rights and Compliance with Securities
Laws. 
 (a) Transferability of Warrant. Subject to compliance with any applicable securities laws and the conditions set forth in
Sections 1 and 7(c), this Warrant may be transferred by a Holder without the consent of the Company. This Warrant is exchangeable at the principal office of the Company for Warrants to purchase the same aggregate number of Warrant Shares,
each new Warrant to represent the right to purchase such number of Warrant Shares as the Holder hereof shall designate at the time of such exchange. All Warrants issued on transfers or exchanges shall be dated the same date as the date of issuance
of this Warrant and shall be identical with this Warrant except as to the number of Warrant Shares issuable pursuant thereto. The Holder or a transferee of this Warrant must obtain the prior written consent of the Company in order to transfer
Warrants representing the right to purchase fewer than the lesser of (x) 1,000 Warrant Shares or (y) the number of Warrant Shares for which this Warrant is then exercisable. The Company shall prepare, issue and deliver at its own expense
(other than transfer taxes) the new Warrant or Warrants under this Section 7. 
 (b) Continuing Rights of Holder. The
Company will, at the time of or at any time after each exercise of this Warrant, upon the request of the Holder hereof, acknowledge in writing the extent, if any, of its continuing obligation to afford to such Holder all rights to which such Holder
shall continue to be entitled after such exercise in accordance with the terms of this Warrant, provided that if any such Holder shall fail to make any such request, the failure shall not affect the continuing obligation of the Company to
afford such rights to such Holder. 

 (c) Compliance with Securities Laws. 
 (i) The Holder of this Warrant, by acceptance hereof, acknowledges that this Warrant and the Warrant Shares to be issued upon exercise
hereof are being acquired solely for the Holder’s own account and not as a nominee for any other party, and for investment, and that the Holder will not offer, sell or otherwise dispose of this Warrant or any Warrant Shares to be issued upon
exercise hereof except pursuant to an effective registration statement, or an exemption from registration, under the Securities Act and any applicable state securities laws. 
 (ii) Except as provided in paragraph (iii) below, this Warrant and all certificates representing Warrant Shares issued upon exercise
hereof shall be stamped or imprinted with a legend in substantially the following form: 
 NEITHER THESE SECURITIES NOR THE SECURITIES INTO
WHICH THESE SECURITIES ARE EXERCISABLE HAVE BEEN REGISTERED WITH THE SECURITIES AND EXCHANGE COMMISSION OR THE SECURITIES COMMISSION OF ANY STATE IN RELIANCE UPON AN EXEMPTION FROM REGISTRATION UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE
“SECURITIES ACT”), AND, ACCORDINGLY, MAY NOT BE OFFERED OR SOLD EXCEPT PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT UNDER THE SECURITIES ACT OR PURSUANT TO AN AVAILABLE EXEMPTION FROM, OR IN A TRANSACTION NOT SUBJECT TO, THE
REGISTRATION REQUIREMENTS OF THE SECURITIES ACT AND IN COMPLIANCE WITH APPLICABLE STATE SECURITIES LAWS OR BLUE SKY LAWS. NOTWITHSTANDING THE FOREGOING, THESE SECURITIES AND THE SECURITIES ISSUABLE UPON EXERCISE OF THESE SECURITIES MAY BE PLEDGED IN
CONNECTION WITH A BONA FIDE MARGIN ACCOUNT SECURED BY SUCH SECURITIES. 
 (iii) The Company agrees to reissue this Warrant or
certificates representing any of the Warrant Shares, without the legend set forth above if at such time, prior to making any transfer of any such securities, the Holder shall give written notice to the Company upon the occurrence of: (a) either
(i) the Company has received an opinion of counsel reasonably satisfactory to the Company, to the effect that the registration of such securities under the Securities Act is not required in connection with such proposed transfer, (ii) a
registration statement under the Securities Act covering such proposed disposition has been filed by the Company with the Commission and has become effective under the Securities Act, (iii) the Company has received other evidence reasonably
satisfactory to the Company that such registration and qualification under the Securities Act and any applicable state securities laws are not required, or (iv) the Holder provides the Company with reasonable assurances that such security can
be sold pursuant to Rule 144 under the Securities Act; and (b) either (i) the Company has received an opinion of counsel reasonably satisfactory to the Company, to the effect that registration or qualification under the securities or
“blue sky” laws of any state is not required in connection with such proposed disposition, or (ii) compliance with applicable state securities or “blue sky” laws has been effected or a valid exemption exists with respect
thereto. The Company will respond to any such notice from a Holder within three (3) business days. In the case of any proposed transfer under this Section 7(c), the Company will use reasonable efforts to comply with any such
applicable state securities or “blue sky” laws, but shall in no event be required, (x) to qualify to do business in any state where it is not then qualified, (y) to take any action that would subject it to tax or to the general
service of process in any state where it is not then subject, or (z) to comply with state securities or “blue sky” laws of any state for which registration by coordination is unavailable to the Company. The restrictions on transfer
contained in this Section 7(c) shall be in addition to, and not by way of limitation of, any other restrictions on transfer contained in any other section of this Warrant. Each Holder, severally and not jointly, agrees that the removal
of the restrictive legend from certificates representing the Warrant Shares is predicated upon the Company’s reliance that the Holder will sell such Warrant Shares pursuant to the registration requirements of the Securities Act, including any
applicable prospectus delivery requirements, or an exemption therefrom. Whenever a certificate representing the Warrant Shares is required to be issued to the Holder without a legend, in lieu of delivering physical certificates representing the
Warrant Shares, provided the Company’s transfer agent is participating in the DTC Fast Automated 

 
Securities Transfer program, the Company shall use its reasonable best efforts to cause its transfer agent to electronically transmit the Warrant Shares to
the Holder by crediting the account of the Holder’s Prime Broker with DTC through its DWAC system (to the extent not inconsistent with any provisions of this Warrant or the Purchase Agreement). 
 (iv) In no event may the Holder exercise this Warrant in whole or in part unless the Holder is an “accredited investor” as
defined in Regulation D under the Securities Act. 
 (d) The Company agrees to maintain, at its aforesaid office, books for the registration
and the registration of transfer of the Warrants. 
 8. No Rights as Shareholder until Exercise. This Warrant does not entitle the
Holder to any voting rights or other rights as a shareholder of the Company prior to the exercise hereof and the payment of the Exercise Price in accordance with the terms hereof (or exercise via cashless exercise). 
 9. Loss, Theft, Destruction or Mutilation of Warrant. The Company covenants that upon receipt by the Company of evidence reasonably satisfactory
to it of the loss, theft, destruction or mutilation of this Warrant or any stock certificate relating to the Warrant Shares, and in case of loss, theft or destruction, of an indemnity agreement or security reasonably satisfactory to it in form and
amount, or, if mutilated, upon surrender and cancellation of such Warrant or stock certificate, the Company will make and deliver a new Warrant or stock certificate of like tenor and dated as of such cancellation, in lieu of such Warrant or stock
certificate. 
 10. Saturdays, Sundays, Holidays, etc. If the last or appointed day for the taking of any action or the expiration of
any right required or granted herein shall be a Saturday, Sunday or a legal holiday, then such action may be taken or such right may be exercised on the next succeeding day not a Saturday, Sunday or legal holiday. 
 11. Adjustments of Exercise Price and Number of Warrant Shares; Stock Splits, etc. The number and kind of securities purchasable upon the exercise
of this Warrant and the Exercise Price shall be subject to adjustment from time to time upon the happening of any of the following (excluding for purposes of this Section 11 any Acquisition Transaction, which shall be governed by
Section 12). In case the Company shall (a) pay a dividend in shares of Common Stock or Common Stock Equivalents or make a distribution in shares of Common Stock or Common Stock Equivalents to holders of its outstanding Common Stock,
(b) subdivide its outstanding shares of Common Stock into a greater number of shares, (c) combine its outstanding shares of Common Stock into a smaller number of shares of Common Stock, or (d) issue any shares of its capital stock in
a reclassification of the Common Stock, then the number of Warrant Shares purchasable upon exercise of this Warrant immediately prior thereto shall be adjusted so that the Holder shall be entitled to receive the kind and number of Warrant Shares or
other securities of the Company which it would have owned or have been entitled to receive had such Warrant been exercised in advance thereof. Upon each such adjustment of the kind and number of Warrant Shares or other securities of the Company
which are purchasable hereunder, the Holder shall thereafter be entitled to purchase the number of Warrant Shares or other securities resulting from such adjustment at an exercise price per Warrant Share or other security obtained by multiplying the
Exercise Price in effect immediately prior to such adjustment by the number of Warrant Shares purchasable pursuant hereto immediately prior to such adjustment and dividing by the number of Warrant Shares or other securities of the Company that are
purchasable pursuant hereto immediately thereafter. An adjustment made pursuant to this paragraph shall become effective immediately after the effective date of such event retroactive to the record date, if any, for such event. 
 12. Effect Upon Warrant of Acquisition Transaction. 
 (a) Definition of Acquisition Transaction. For purposes of this Warrant, an “Acquisition Transaction” is any: (i) sale, lease, exchange, conveyance or other disposition of all or substantially
all of the Company’s property or business; (ii) merger or consolidation that results in the holders of the outstanding voting equity securities of the Company, as of immediately prior to such merger or consolidation, not holding a majority
of the outstanding voting equity securities of the Company or the surviving entity of such merger or consolidation (if not the Company), immediately after such merger or consolidation; or (iii) sale of the outstanding voting equity securities
of the Company that results in the holders of the outstanding voting equity securities of the Company, as of immediately prior to such sale, not holding at least majority of the outstanding voting equity securities of the Company, immediately after
such sale. 

 (b) Termination Upon Consummation of Acquisition Transaction. If this Warrant is exercisable, the
Company shall provide the Holder of this Warrant with at least ten 10 days’ written notice prior to closing thereof of any Acquisition Transaction. If this Warrant is exercisable, the Holder may exercise this Warrant in full, in accordance with
the terms and conditions hereof, at any time prior to the consummation of the Acquisition Transaction and, notwithstanding anything to the contrary in this Warrant, this Warrant and all rights of the Holder of this Warrant hereunder shall terminate,
automatically and without any further action by the Company or the Holder of this Warrant, upon the consummation of such Acquisition Transaction. 
 13. Intentionally Omitted. 
 14. Notice of Adjustment. Whenever the number of Warrant Shares or number or kind of securities
or other property purchasable upon the exercise of this Warrant or the Exercise Price is adjusted, as herein provided, the Company shall give notice thereof to the Holder, which notice shall state the number of Warrant Shares (and other securities
or property) purchasable upon the exercise of this Warrant and the Exercise Price of such Warrant Shares (and other securities or property) after such adjustment, setting forth a brief statement of the facts requiring such adjustment and setting
forth the computation by which such adjustment was made. 
 15. Authorized Shares. The Company covenants that, from the Shareholder
Approval and for the remaining period the Warrant is outstanding, it will reserve from its authorized and unissued Common Stock a sufficient number of shares to provide for the issuance of the Warrant Shares upon the exercise of any purchase rights
under this Warrant. 
 Except and to the extent as waived or consented to by the Holder, the Company shall not by any action, including,
without limitation, amending its certificate of incorporation or through any reorganization, transfer of assets, consolidation, merger, dissolution, issue or sale of securities or any other voluntary action, avoid or seek to avoid the observance or
performance of any of the terms of this Warrant, but will at all times in good faith assist in the carrying out of all such terms and in the taking of all such actions as may be necessary or appropriate to protect the rights of Holder as set forth
in this Warrant against impairment. Without limiting the generality of the foregoing, the Company will (a) not increase the par value of any Warrant Shares above the amount payable therefor upon such exercise immediately prior to such increase
in par value, (b) take all such action as may be necessary or appropriate in order that the Company may validly and legally issue fully paid and nonassessable Warrant Shares upon the exercise of this Warrant, and (c) use commercially
reasonable efforts to obtain all such authorizations, exemptions or consents from any public regulatory body having jurisdiction thereof as may be necessary to enable the Company to perform its obligations under this Warrant. 
 Before taking any action which would result in an adjustment in the number of Warrant Shares for which this Warrant is exercisable or in the Exercise
Price, the Company shall obtain all such authorizations or exemptions thereof, or consents thereto, as may be necessary from any public regulatory body or bodies having jurisdiction thereof. 
 16. Miscellaneous. 
 (a)
Jurisdiction. All questions concerning the construction, validity, enforcement and interpretation of this Warrant shall be determined in accordance with the provisions of the Purchase Agreement. 
 (b) Restrictions. The Holder acknowledges that the Warrant Shares acquired upon the exercise of this Warrant, if not registered, will have
restrictions upon resale imposed by state and federal securities laws. 
 (c) Nonwaiver and Expenses. No course of dealing or any
delay or failure to exercise any right hereunder on the part of Holder shall operate as a waiver of such right or otherwise prejudice Holder’s rights, powers or remedies, notwithstanding all rights hereunder terminate on the Termination Date.
If the Company 

 
willfully and knowingly fails to comply with any provision of this Warrant, which results in any material damages to the Holder, the Company shall pay to
Holder such amounts as shall be sufficient to cover any costs and expenses including, but not limited to, reasonable attorneys’ fees and expenses, including those of appellate proceedings, incurred by Holder in collecting any amounts due
pursuant hereto or in otherwise enforcing any of its rights, powers or remedies hereunder. 
 (d) Notices. Any notice, request or
other document required or permitted to be given or delivered to the Holder by the Company shall be delivered in accordance with the notice provisions of the Purchase Agreement. 
 (e) Limitation of Liability. No provision hereof, in the absence of any affirmative action by Holder to exercise this Warrant or purchase Warrant
Shares, and no enumeration herein of the rights or privileges of Holder, shall give rise to any liability of Holder for the purchase price of any Common Stock or as a shareholder of the Company, whether such liability is asserted by the Company or
by creditors of the Company. 
 (f) Remedies. Holder, in addition to being entitled to exercise all rights granted by law, including
recovery of damages, will be entitled to specific performance of its rights under this Warrant. The Company agrees that monetary damages would not be adequate compensation for any loss incurred by reason of a breach by it of the provisions of this
Warrant and hereby agrees to waive the defense in any action for specific performance that a remedy at law would be adequate. 
 (g)
Successors and Assigns. Subject to applicable securities laws, this Warrant and the rights and obligations evidenced hereby shall inure to the benefit of and be binding upon the successors of the Company and the successors and permitted
assigns of Holder. The provisions of this Warrant are intended to be for the benefit of all Holders from time to time of this Warrant and shall be enforceable by any such Holder or holder of Warrant Shares. 
 (h) Amendment. This Warrant may be modified or amended or the provisions hereof waived with the written consent of the Company and the Holder.

 (i) Severability. Wherever possible, each provision of this Warrant shall be interpreted in such manner as to be effective and
valid under applicable law, but if any provision of this Warrant shall be prohibited by or invalid under applicable law, such provision shall be ineffective to the extent of such prohibition or invalidity, without invalidating the remainder of such
provisions or the remaining provisions of this Warrant. 
 (j) Headings. The headings used in this Warrant are for the convenience of
reference only and shall not, for any purpose, be deemed a part of this Warrant. 
 17. Definitions. For the purposes of this Warrant,
the following terms have the following meanings: 
 “Closing Price” means on any particular date (a) the last reported
closing price per share of Common Stock on such date on an Eligible Market (as reported by Bloomberg L.P. ), (b) if there is no such price on such date, then the closing price on an Eligible Market on the date nearest preceding such date (as
reported by Bloomberg L.P.), (c) if prices for the Common Stock are then reported in the “pink sheets” published by the Pink Sheets LLC (formerly the National Quotation Bureau Incorporated (or a similar organization or agency
succeeding to its functions of reporting prices)) and are not reported by Bloomberg L.P. (as described in (a) or (b) above), the most recent bid price per share of the Common Stock so reported, or (d) if the shares of Common Stock are
not then publicly traded, the fair market value of a share of Common Stock as determined by a qualified independent appraiser selected in good faith by the Purchasers holding a majority in interest of the Shares then outstanding. 
 “Common Stock Equivalents” means any securities of the Company or the Subsidiaries which would entitle the holder thereof to acquire at
any time shares of Common Stock, including without limitation, any debt, preferred stock, rights, options, warrants or other instrument that is at any time convertible into or exchangeable for, or otherwise entitles the holder thereof to receive,
shares of Common Stock. 

 “Registration Statement” means a registration statement meeting the requirements set
forth in the Registration Rights Agreement and covering the resale by the Purchasers of the Shares and the Warrant Shares or a portion thereof (as provided for in the Registration Rights Agreement). 
 “Trading Day” means a day on which the Common Stock is traded on an Eligible Market. 
 ******************** 
 IN WITNESS WHEREOF,
the Company has caused this Warrant to be executed by its officer thereunto duly authorized. 
  

							
	Dated: ___ ____, 2007	 		 	
		 		 	VERTICALNET, INC.
				
		 		 	By:	 	 
		 		 		 	Name:
		 		 		 	Title:

 NOTICE OF EXERCISE 
  

	To:	Verticalnet, Inc. 

 (1) The undersigned, (the holder of
the attached Warrant) hereby elects to purchase ________ Warrant Shares of the Company pursuant to the terms of the attached Warrant, and tenders herewith payment of the exercise price in full, together with all applicable transfer taxes, if any, in
the aggregate amount of $            . 
 (2) Payment is in the form of
(check applicable box): 
  

	 	 ̈	in lawful money of the United States; or 

  

	 	 ̈	the cancellation of such number of Warrant Shares as is necessary, in accordance with the formula set forth in subsection 3(d), to exercise this Warrant with respect to the maximum
number of Warrant Shares purchasable pursuant to the cashless exercise procedure set forth in subsection 3(d). 

 (3) Please
issue a certificate or certificates representing said Warrant Shares in the name of the undersigned or in such other name as is specified below: 
 __________________________________ 
 The Warrant Shares shall be delivered to the following: 
 __________________________________ 
 __________________________________ 
 __________________________________ 
 (4) The undersigned hereby confirms the representations and warranties set forth in Purchase Agreement. 
  

					
	[PURCHASER]
		
	By:	 	 
		 	Name:	 	
		 	Title:	 	
			
		 	Dated:	 	 

 ASSIGNMENT FORM 
 FOR VALUE RECEIVED, ______________________ (the “Assignor”) hereby sells, assigns and transfers all of the rights of the undersigned Assignor under the attached Warrant with respect to the number of
shares of common stock of Verticalnet, Inc. (the “Company”) covered thereby set forth below, to the following “Assignee” and, in connection with such transfer, represents and warrants to the Company that the transfer is
otherwise in compliance with the Warrant: 
  

					
	 Name of Assignee
	  	 Address/Fax Number
	  	 No. of Shares

		  		  	
		  		  	
		  		  	
		  		  	

  

							
		 		 		 	
				
	Dated:	 	  	 	Signature:	 	  
				
	 	 	 	 	Witness:	 	  

 ASSIGNEE ACKNOWLEDGEMENT 
 The undersigned Assignee acknowledges that it has reviewed the attached Warrant and by its signature below it hereby represents and warrants that it is an “accredited investor” as defined in Rule 501(a) of
Regulation D promulgated under the Securities Act of 1933, as amended, and agrees to be bound by the terms and conditions of the attached Warrant as of the date hereof. 
  

					
		
	By:	 	 
		
	Its:	 	 
			
	Address:	 		 	 
			
		 		 	 

 NOTE: The signature to this Assignment Form must correspond with the name as it appears on the face of the
Warrant, without alteration or enlargement or any change whatsoever, and must be guaranteed by a bank or trust company. Officers of corporations and those acting in a fiduciary or other representative capacity should file proper evidence of
authority to assign the foregoing Warrant. 

 SCHEDULE I 
 WARRANTS ISSUED 
 pursuant to 
 SERIES B PREFERRED STOCK AND WARRANT PURCHASE AGREEMENT, DATED JUNE 1, 2007 
  

					
	 Names of Purchasers
	  	Warrants
	  	 Exercise Price
 equal to $2.56
per share
	  	 Exercise Price per share
equal to $5.60

(as adjusted for eight-
for-one reverse stock
split of common stock
on August 16, 2007)

	 Nathanael V. Lentz*
	  	100,000	  	100,000
	 Mark L. Walsh (Ruxton Ventures LLC)*
	  	100,000	  	100,000
	 Michael J Hagan*
	  	500,000	  	500,000
	 Michael P. McNulty
	  	500,000	  	500,000
	 Heller Capital Investments
	  	2,000,000	  	2,000,000
	 Amir L. Ecker
	  	150,000	  	150,000
	 ACT Capital Partners, L.P.
	  	250,000	  	250,000
	 Richard Chakejian, Jr.
	  	200,000	  	200,000
	 Octagon Capital Partners
	  	50,000	  	50,000
	 David S. Nagelberg CGM IRA Custodian
	  	500,000	  	500,000
		  	4,350,000	  	4,350,000Registration Rights Agreement

 Exhibit 4.4 
 REGISTRATION RIGHTS AGREEMENT 
 This Registration Rights Agreement (this
“Agreement”) is made and entered into as of May __, 2007 by and among Verticalnet, Inc., a Pennsylvania corporation (the “Company”), and the purchasers listed on Schedule I hereto (the
“Purchasers”). 
 This Agreement is being entered into pursuant to the Stock and Warrant Purchase Agreement dated as of the
date hereof among the Company and the Purchasers (the “Purchase Agreement”). 
 The Company and the Purchasers hereby agree
as follows: 
 1. Definitions. 
 Capitalized terms used and not otherwise defined herein shall have the meanings given such terms in the Purchase Agreement. As used in this Agreement, the following terms shall have the following meanings: 
 “Affiliate” means, with respect to any Person, any other Person that directly or indirectly controls or is controlled by or under common
control with such Person. For the purposes of this definition, “control,” when used with respect to any Person, means the possession, direct or indirect, of the power to direct or cause the direction of the management and policies
of such Person, whether through the ownership of voting securities, by contract or otherwise; and the terms of “affiliated,” “controlling” and “controlled” have meanings correlative to the
foregoing. 
 “Board” shall have meaning set forth in Section 5(n). 
 “Business Day” means any day except Saturday, Sunday and any day which shall be a legal holiday or a day on which banking institutions
in the state of New York generally are authorized or required by law or other government actions to close. 
 “Commission”
means the Securities and Exchange Commission. 
 “Common Stock” means the Company’s Common Stock, par value $0.01 per
share. 
 “Conversion Shares” means the shares of Common Stock issuable upon conversion of the Shares issued to the
Purchasers pursuant to the Purchase Agreement. 
 “Effectiveness Period” shall have the meaning set forth in
Section 2(b). 
 “Event” shall have the meaning set forth in Section 10(b). 
 “Event Date” shall have the meaning set forth in Section 10(b). 
 “Exchange Act” means the Securities Exchange Act of 1934, as amended. 
 “Filing Date” means the Demand Registration Filing Date, the Piggyback Registration Filing Date, the S-3 Filing Date or the S-1 Filing
Date, as applicable. 
 “Holder” or “Holders” means the holder or holders, as the case may be, from time to
time of Registrable Securities. 
 “Indemnified Party” shall have the meaning set forth in Section 8(c).

 “Indemnifying Party” shall have the meaning set forth in Section 8(c). 

 “Losses” shall have the meaning set forth in Section 8(a). 
 “Person” means an individual or a corporation, partnership, trust, incorporated or unincorporated association, joint venture, limited
liability company, joint stock company, government (or an agency or political subdivision thereof) or other entity of any kind. 
 “Proceeding” means an action, claim, suit, investigation or proceeding (including, without limitation, an investigation or partial proceeding, such as a deposition), whether commenced or threatened. 
 “Prospectus” means the prospectus included in the Registration Statement (including, without limitation, a prospectus that includes any
information previously omitted from a prospectus filed as part of an effective registration statement in reliance upon Rule 430A promulgated under the Securities Act), as amended or supplemented by any prospectus supplement, as well as any free
writing prospectus, with respect to the terms of the offering of any portion of the Registrable Securities covered by the Registration Statement, and all other amendments and supplements to the Prospectus, including post-effective amendments, and
all material incorporated by reference in such Prospectus. 
 “Registrable Securities” means (i) the Conversion Shares
and (ii) the shares of Common Stock issuable upon exercise of the Warrants. 
 “Registration Statement” means any
registration statement and any additional registration statement contemplated by Sections 2, 3 or 4, as applicable, including (in each case) the Prospectus, amendments and supplements to such registration statement or
Prospectus, including pre- and post-effective amendments, all exhibits thereto, and all material incorporated by reference in such registration statement. 
 “Rule 144” means Rule 144 promulgated by the Commission pursuant to the Securities Act, as such Rule may be amended from time to time, or any similar rule or regulation hereafter adopted by the
Commission having substantially the same effect as such Rule. 
 “Rule 158” means Rule 158 promulgated by the Commission
pursuant to the Securities Act, as such Rule may be amended from time to time, or any similar rule or regulation hereafter adopted by the Commission having substantially the same effect as such Rule. 
 “Rule 424” means Rule 424 promulgated by the Commission pursuant to the Securities Act, as such Rule may be amended from time to time,
or any similar rule or regulation hereafter adopted by the Commission having substantially the same effect as such Rule. 
 “Securities Act” means the Securities Act of 1933, as amended. 
 “Shareholder Approval” means
approval by the holders of Common Stock of all the Proposals (as defined in the Purchase Agreement). 
 “Subsequent
Financing” means a financing transaction pursuant to which the Company sells Common Stock or securities convertible into or exercisable or exchangeable for Common Stock where the Company receives aggregate gross proceeds that equal, when
added to the aggregate gross proceeds received by the Company from the sale of the Shares under the Purchase Agreement, at least $6,000,000. 
 “Warrants” means the warrants to purchase shares of Common Stock issued to the Purchasers pursuant to the Purchase Agreement. 
 2.
Demand Rights. 
 (a) Subject to the conditions of this Section 2, if the Company has not closed a Subsequent Financing by
December 31, 2007, then at any time thereafter the Holders of a majority of the Registrable Securities then outstanding (the “Initiating Holders”) may request in writing (the “Demand Request”) that the Company
file a 

 
Registration Statement under the Securities Act covering the registration of at least 20% of the Registrable Securities then outstanding and having an
aggregate price to the public of not less than $1,000,000. The Demand Request shall set forth the number of Registrable Securities owned by the Initiating Holders to be included in the Registration Statement. In such event, the Company shall:

 (i) as promptly as practicable but in any event within ten days of the receipt of the Demand Request, give written notice
of such request to all Holders (the “Demand Notice”); 
 (ii) subject to the limitations set forth in this
Section 2, prepare and file, as expeditiously as is commercially reasonable, and in any event within 90 days of receipt of such request (the “Demand Registration Filing Date”), a Registration Statement under the
Securities Act covering the Registrable Securities specified by the Initiating Holders in the Demand Request and such other Registrable Securities with respect to which the Company has received written requests for inclusion within such Registration
Statement within 15 days after the Company has given the Demand Notice; and 
 (iii) use its commercially reasonable efforts
to cause the Registration Statement to be declared effective. 
 (b) The Registration Statement shall be a resale registration statement on
Form S-3, except (i) if the Company is not then eligible to register for resale the Registrable Securities on Form S-3, in which case such registration shall be on another appropriate form in accordance with the Securities Act and the rules
promulgated thereunder or (ii) if the Initiating Holders request and include in the Demand Request that such Registration Statement be on Form S-1 (or such other another appropriate form in accordance with the Securities Act and the rules
promulgated thereunder), in which case such registration shall be on such other appropriate form. The Company shall use its commercially reasonable efforts to (i) have such Registration Statement declared effective by the Commission
(x) within 90 days after the Demand Registration Filing Date if such Registration Statement is not reviewed by the Commission or (y) within 120 days after the Demand Registration Filing Date if such Registration Statement is reviewed by
the Commission and (ii) keep such Registration Statement continuously effective under the Securities Act until such date as is the earlier of (x) the date when all such Registrable Securities covered by such Registration Statement have
been sold or (y) the date on which such Registrable Securities may be sold pursuant to Rule 144 (the “Effectiveness Period”). Each Holder acknowledges and agrees that the Company shall be permitted to exclude such Holder’s
Registrable Securities from a Registration Statement if such Holder fails to timely comply with the Company’s request for information pursuant to Section 5(m); provided if such Holder provides such information prior to the filing of
such Registration Statement the Company shall use commercially reasonable efforts to include such Registrable Securities on such Registration Statement. 
 (c) If the Initiating Holders intend to distribute the Registrable Securities covered by their Demand Request by means of an underwritten offering, they shall so advise the Company in the Demand Request, and the
Company shall include such information in the Demand Notice. In such event, the right of any Holder to include its Registrable Securities in such registration shall be conditioned upon such Holder’s participation in such underwritten offering
and the inclusion of such Holder’s Registrable Securities in the underwritten offering to the extent provided herein. All Holders proposing to distribute their securities by means of such underwritten offering shall enter into an underwriting
agreement in customary form with an underwriter or underwriters selected for such underwriting by the Initiating Holders and reasonably acceptable to the Company. Notwithstanding any other provision of this Section 2, if the underwriter
advises the Company that marketing factors require a limitation of the number of securities to be underwritten (including Registrable Securities), then the Company shall so advise all Holders of Registrable Securities which would otherwise be
underwritten pursuant hereto, and the number of securities that may be included in the underwriting shall be allocated to the Holders of such Registrable Securities on a pro rata basis based on the number of Registrable Securities held by all such
Holders; provided, however, that the Company shall first exclude all other securities from the underwriting and registration before it reduces the number of Registrable Securities requested by the Holders. Any Registrable Securities
excluded or withdrawn from such underwriting shall be withdrawn from the registration. If any Holder disapproves of the terms of any such underwriting, such Holder may elect to withdraw therefrom by written notice to the Company and the underwriter,
delivered at least 10 Business Days prior to the effective date of such Registration Statement. 
 (d) The Company shall not be required to
effect a registration pursuant to this Section 2: 

 (i) after the Company has filed two Registration Statements pursuant to this
Section 2; or 
 (ii) if the Company shall furnish to the Holders requesting a Registration Statement pursuant to
this Section 2, a certificate signed by the Chief Executive Officer of the Company stating that in the reasonable judgment of the Board of Directors of the Company, it would be detrimental to the Company and its shareholders for such
Registration Statement to be effected at such time, in which event the Company shall have the right to defer such filing for a period of not more than 90 days after receipt of the request of the Initiating Holders; provided, however,
that the Company may not utilize this right more than once in any 12 month period. 
 3. Subsequent Financing Registration. 
 (a) If the Company proposes to file a Registration Statement under the Securities Act for purposes of a public offering of securities of the Company
issued or issuable in connection with a Subsequent Financing, it shall notify all Holders of Registrable Securities in writing (the “Company Notice”). Each Holder shall have the right (the “Piggyback Right”),
subject to the limitations set forth in Section 3(b), to include in such Registration Statement all or any part of the Registrable Securities then held by such Holder. In order to exercise the Piggyback Right, a Holder shall give written
notice to the Company (the “Piggyback Notice”) no later than 15 days following the date on which the Company gives the Company Notice. The Piggyback Notice shall set forth the number of Registrable Securities that such Holder
desires to include in such Registration Statement. 
 (b) If the Registration Statement under which the Company gives notice under this
Section 3 is for an underwritten offering, the Company shall so advise the Holders of Registrable Securities in the Company Notice. In such event, the right of any such Holder to be included in a registration pursuant to this
Section 3 shall be conditioned upon such Holder’s participation in such underwritten offering and the inclusion of such Holder’s Registrable Securities in the underwritten offering to the extent provided herein. All Holders
proposing to distribute their Registrable Securities by means of such underwritten offering shall enter into an underwriting agreement in customary form with the underwriter or underwriters selected for such underwriting by the Company.
Notwithstanding any other provision of the Agreement, if the underwriter determines in good faith that marketing factors require a limitation of the number of shares to be underwritten, the number of shares that may be included in the underwriting
shall be allocated in the following order of priority: (i) first, to the securities acquired or to be acquired in the Subsequent Financing; (ii) second, to the Holders, up to the full number of Registrable Securities requested to be
included in such registration on a pro rata basis based on the total number of Registrable Securities requested to be included in such registration by the Holders; (iii) third, to the Company, all securities proposed to be registered by the
Company for its own account; and (iv) fourth, to any other holders, the number of securities requested to be included by any other holders, in proportion as nearly as practicable, to the respective amounts of securities of the Company owned by
them. Any Registrable Securities excluded or withdrawn from such underwriting shall be withdrawn from the registration. If any Holder disapproves of the terms of any such underwriting, such Holder may elect to withdraw therefrom by written notice to
the Company and the underwriter, delivered at least 10 Business Days prior to the effective date of such Registration Statement. 
 (c) The
Company shall prepare and file, as expeditiously as is commercially reasonable, and in any event within 90 days of after the closing of the Subsequent Financing (the “Piggyback Registration Filing Date”), such Registration
Statement. 
 (d) The Company shall use its commercially reasonable efforts to (i) have such Registration Statement declared effective
by the Commission (x) within 90 days after the Piggyback Registration Filing Date if such Registration Statement is not reviewed by the Commission or (y) within 120 days after the Piggyback Registration Filing Date if such Registration
Statement is reviewed by the Commission and (ii) keep such Registration Statement continuously effective under the Securities Act until the end of the Effectiveness Period. Each Holder acknowledges and agrees that the Company shall be permitted
to exclude such Holder’s Registrable Securities from a Registration Statement if such Holder fails to timely comply with the Company’s request for information pursuant to Section 5(m); provided if such Holder provides such
information prior to the filing of such Registration Statement the Company shall use commercially reasonable efforts to include such Registrable Securities on such Registration Statement. 

 4. Other Registration. 
 (a) Within 30 days after the date that Company obtains the Shareholder Approval (the “S-3 Filing Date”), provided that the Conversion Shares are eligible to be registered for resale on a Form S-3
Registration Statement, the Company shall prepare and file with the Commission a resale Registration Statement on Form S-3 providing for the resale of 25% of the Conversion Shares (allocated to each Holder on a pro rata basis) held by the Holders
that have complied with the provisions of Section 5(m). The Company shall use its commercially reasonable efforts to cause such Registration Statement to be declared effective under the Securities Act as promptly as possible after the
filing thereof and to keep such Registration Statement continuously effective under the Securities Act until the end of the Effectiveness Period. Each Holder acknowledges and agrees that the Company shall be permitted to exclude such Holder’s
Conversion Shares from a Registration Statement if such Holder fails to timely comply with the Company’s request for information pursuant to Section 5(m); provided if such Holder provides such information prior to the filing of such
Registration Statement the Company shall use commercially reasonable efforts to include such Conversion Shares on such Registration Statement. 
 (b) If the Conversion Shares are not eligible to be registered for resale on a Form S-3 Registration Statement and the Company obtains the Shareholder Approval, then within 90 days after the date that the Company obtains the Shareholder
Approval (the “S-1 Filing Date”), the Company shall prepare and file with the Commission a resale Registration Statement on Form S-1 (or such other another appropriate form in accordance with the Securities Act and the rules
promulgated thereunder) providing for the resale of 25% of the Conversion Shares (allocated to each Holder on a pro rata basis) held by the Holders that have complied with the provisions of Section 5(m). The Company shall use its
commercially reasonable efforts to cause such Registration Statement to be declared effective under the Securities Act as promptly as possible after the filing thereof and to keep such Registration Statement continuously effective under the
Securities Act until the end of the Effectiveness Period. Each Holder acknowledges and agrees that the Company shall be permitted to exclude such Holder’s Conversion Shares from a Registration Statement if such Holder fails to timely comply
with the Company’s request for information pursuant to Section 5(m); provided if such Holder provides such information prior to the filing of such Registration Statement the Company shall use commercially reasonable efforts to
include such Conversion Shares on such Registration Statement. 
 5. Registration Procedures. In connection with the Company’s registration
obligations hereunder, the Company shall: 
 (a) Prepare and file with the Commission on or prior to the applicable Filing Date, a
Registration Statement on the appropriate form. The Registration Statement required hereunder shall contain (except if otherwise directed by Holders owning a majority of the Registrable Securities outstanding at such time and except for a
Registration Statement referenced in Section 3) substantially the “Plan of Distribution” attached hereto as Annex A. Subject to this Agreement, the Company shall use its commercially reasonable efforts to cause
the Registration Statement to become effective and remain effective as provided herein; provided, however, that not less than five (5) Business Days prior to the filing of the Registration Statement or any related Prospectus or
any amendment or supplement thereto (including any document that would be incorporated therein by reference), the Company shall (i) furnish to the Holders, copies of all such documents proposed to be filed, which documents (other than those
incorporated by reference) will be subject to the review of such Holders, and (ii) cause its officers and directors, counsel and independent certified public accountants to respond to such inquiries as shall be necessary to conduct a reasonable
investigation within the meaning of the Securities Act. Unless otherwise advised by outside counsel to the Company, the Company shall not file the Registration Statement or any such Prospectus or any amendments or supplements thereto to which the
Holders of a majority of the Registrable Securities shall reasonably object in writing within three (3) Business Days of their receipt thereof. 
 (b)(i) Prepare and file with the Commission such amendments, including post-effective amendments, to the Registration Statement as may be necessary to keep the Registration Statement continuously effective as to the
applicable Registrable Securities for the Effectiveness Period and prepare and file with the Commission such additional Registration Statements as necessary in order to register for resale (if applicable) under the Securities Act all of the
Registrable Securities; (ii) cause the related Prospectus to be amended or supplemented by any required Prospectus supplement, and as so supplemented or amended to be filed pursuant to Rule 424 (or any similar provisions then in force)
promulgated under the Securities Act; (iii) respond as promptly as possible, but in no event 

 
later than twenty (20) Business Days, to any comments received from the Commission with respect to the Registration Statement or any amendment thereto
and as promptly as possible provide the Holders true and complete copies of all correspondence from and to the Commission relating to the Registration Statement; and (iv) comply in all material respects with the provisions of the Securities Act
and the Exchange Act with respect to the disposition of all Registrable Securities covered by the Registration Statement during the applicable period in accordance with the intended methods of disposition by the Holders thereof set forth in the
Registration Statement as so amended or in such Prospectus as so supplemented. 
 (c) Notify the Holders of Registrable Securities to be sold
as promptly as possible (and, in the case of (i)(A) below, not less than three (3) days prior to such filing) (i)(A) when a Prospectus or any Prospectus supplement or post-effective amendment to the Registration Statement is filed;
(B) when the Commission notifies the Company whether there will be a “review” of such Registration Statement and whenever the Commission comments in writing on such Registration Statement and (C) with respect to the Registration
Statement or any post-effective amendment, when the same has become effective; (ii) of any written request by the Commission or any other Federal or state governmental authority for amendments or supplements to the Registration Statement or
Prospectus or for additional information; (iii) of the issuance by the Commission of any stop order suspending the effectiveness of the Registration Statement covering any or all of the Registrable Securities or the initiation of any
Proceedings for that purpose; (iv) of the receipt by the Company of any notification with respect to the suspension of the qualification or exemption from qualification of any of the Registrable Securities for sale in any jurisdiction, or the
initiation or threatening of any Proceeding for such purpose; and (v) of the occurrence of any event that makes any statement made in the Registration Statement or Prospectus or any document incorporated or deemed to be incorporated therein by
reference untrue in any material respect or that requires any revisions to the Registration Statement, Prospectus or other documents so that, in the case of the Registration Statement or the Prospectus, as the case may be, it will not contain any
untrue statement of a material fact or omit to state any material fact required to be stated therein or necessary to make the statements therein, in the light of the circumstances under which they were made, not misleading. 
 (d) Use its reasonable best efforts to avoid the issuance of, or, if issued, obtain the withdrawal of, (i) any order suspending the effectiveness of
the Registration Statement or (ii) any suspension of the qualification (or exemption from qualification) of any of the Registrable Securities for sale in any jurisdiction, at the earliest practicable moment. 
 (e) If requested by the Holders of a majority in interest of the Registrable Securities, (i) promptly incorporate in a Prospectus supplement or
post-effective amendment to the Registration Statement such information as the Company reasonably agrees should be included therein and (ii) make all required filings of such Prospectus supplement or such post-effective amendment as soon as
reasonably practicable after the Company has received notification of the matters to be incorporated in such Prospectus supplement or post-effective amendment. 
 (f) Furnish to each Holder, without charge, at least one conformed copy of each Registration Statement and each amendment thereto, including financial statements and schedules contained therein, and to the extent
requested by such Person, all exhibits and all documents incorporated or deemed to be incorporated therein by reference (including those previously furnished or incorporated by reference) promptly after the filing of such documents with the
Commission. 
 (g) Promptly deliver to each Holder, without charge, as many copies of the Prospectus or Prospectuses (including each form of
prospectus) and each amendment or supplement thereto as such Persons may reasonably request; and the Company hereby consents to the use of such Prospectus and each amendment or supplement thereto by each of the selling Holders in connection with the
offering and sale of the Registrable Securities covered by such Prospectus and any amendment or supplement thereto. 
 (h) Prior to any
public offering of Registrable Securities, use its commercially reasonable efforts to register or qualify or cooperate with the selling Holders in connection with the registration or qualification (or exemption from such registration or
qualification) of such Registrable Securities for offer and sale under the securities or Blue Sky laws of such jurisdictions within the United States as any Holder requests in writing, to keep each such registration or qualification (or exemption
therefrom) effective during the Effectiveness Period and to do any and all other acts or things necessary or advisable to enable the disposition in such jurisdictions of the 

 
Registrable Securities covered by a Registration Statement; provided, however, that the Company shall not be required to qualify generally to
do business in any jurisdiction where it is not then so qualified or to take any action that would subject it to general service of process in any such jurisdiction where it is not then so subject or subject the Company to any material tax in any
such jurisdiction where it is not then so subject. 
 (i) Cooperate with the Holders to facilitate the timely preparation and delivery of
certificates representing Registrable Securities to be sold pursuant to a Registration Statement, which certificates shall be free of all restrictive legends (provided that the issuance of such unlegended certificates is in compliance with
applicable securities laws), and to enable such Registrable Securities to be in such denominations as any Holder may request in writing at least two (2) Business Days prior to any sale of Registrable Securities. 
 (j) Upon the occurrence of any event contemplated by Section 5(c)(v), as promptly as possible, prepare a supplement or amendment, including a
post-effective amendment, to the Registration Statement or a supplement to the related Prospectus or any document incorporated or deemed to be incorporated therein by reference, and file any other required document so that, as thereafter delivered,
neither the Registration Statement nor such Prospectus will contain an untrue statement of a material fact or omit to state a material fact required to be stated therein or necessary to make the statements therein, in the light of the circumstances
under which they were made, not misleading. 
 (k) Use its reasonable best efforts to cause all Registrable Securities relating to the
Registration Statement to be listed on The Nasdaq Capital Market or any other securities exchange, quotation system or market, if any, on which the Company’s Common Stock or similar securities issued by the Company are then listed or traded as
and when required pursuant to the Purchase Agreement. 
 (l) Comply in all material respects with all applicable rules and regulations of the
Commission and make generally available to its security holders earning statements satisfying the provisions of Section 11(a) of the Securities Act and Rule 158 not later than 45 days after the end of any 12-month period (or 90 days after the
end of any 12-month period if such period is a fiscal year) commencing on the first day of the first fiscal quarter of the Company after the effective date of the Registration Statement, which statement shall conform to the requirements of Rule 158.

 (m) The Company may require each selling Holder to furnish to the Company information regarding such Holder and the distribution of such
Registrable Securities as is required by law to be disclosed in the Registration Statement, and the Company may exclude from such registration the Registrable Securities of any such Holder who unreasonably fails to furnish such information within a
reasonable time after receiving such request. The Company may require each Holder, upon three (3) Business Days notice, to furnish to the Company a certified statement as to, among other things, the number of shares of Common Stock beneficially
owned by such Holder and name of the natural person(s) that has voting and dispositive control over such shares. 
 (n) If (i) there is
material non-public information regarding the Company which the Company’s Board of Directors (the “Board”) reasonably determines not to be in the Company’s best interest to disclose and which the Company is not otherwise
required to disclose, or (ii) there is a significant business opportunity (including, but not limited to, the acquisition or disposition of assets (other than in the ordinary course of business) or any merger, consolidation, tender offer or
other similar transaction) available to the Company which the Board reasonably determines not to be in the Company’s best interest to disclose, then the Company may (x) postpone or suspend filing of the Registration Statement for a period
not to exceed 45 consecutive days or (y) postpone or suspend effectiveness of the Registration Statement for a period not to exceed 30 consecutive days; provided that the Company may not postpone or suspend effectiveness of the Registration
Statement under this Section 5(n) for more than 60 days in the aggregate during any 360 day period; provided, however, that no such postponement or suspension shall be permitted for consecutive 30 day periods arising out of the
same set of facts, circumstances or transactions. 
 6. Holders’ Rights and Obligations. 
 (a) If the Registration Statement refers to any Holder by name or otherwise as the holder of any securities of the Company, then such Holder shall have
the right to require (if such reference to such Holder by 

 
name or otherwise is not required by the Securities Act or any similar federal statute then in force) the deletion of the reference to such Holder in any
amendment or supplement to the Registration Statement filed or prepared subsequent to the time that such reference ceases to be required. 
 (b) Each Holder covenants and agrees that (i) it will not sell any Registrable Securities under the Registration Statement until it has received copies of the Prospectus as then amended or supplemented as contemplated in
Section 5(g) and notice from the Company that such Registration Statement and any post-effective amendments thereto have become effective as contemplated by Section 5(c) and (ii) it and its officers, directors or
Affiliates, if any, will comply with the prospectus delivery requirements of the Securities Act as applicable to them in connection with sales of Registrable Securities pursuant to the Registration Statement. 
 (c) Each Holder agrees by its acquisition of such Registrable Securities that, upon receipt of a notice from the Company of the occurrence of any event
of the kind described in Section 5(c)(ii), 5(c)(iii), 5(c)(iv), 5(c)(v) or 5(n), such Holder will forthwith discontinue disposition of such Registrable Securities under the Registration Statement until such
Holder’s receipt of the copies of the supplemented Prospectus and/or amended Registration Statement contemplated by Section 5(j), or until it is advised in writing by the Company that the use of the applicable Prospectus may be
resumed, and, in either case, has received copies of any additional or supplemental filings that are incorporated or deemed to be incorporated by reference in such Prospectus or Registration Statement. 
 7. Registration Expenses. All fees and expenses incident to the performance of or compliance with this Agreement by the Company, except as and to the extent
specified in this Section 7, shall be borne by the Company whether or not the Registration Statement is filed or becomes effective and whether or not any Registrable Securities are sold pursuant to the Registration Statement; provided,
however, that except as expressly set forth herein, in no event shall such fees and expenses borne by the Company include any underwriting fees, discounts, commissions or fees attributable to the sale of the Registrable Securities. The fees and
expenses referred to in the foregoing sentence shall include, without limitation, (i) all registration and filing fees (including, without limitation, fees and expenses (A) with respect to filings required to be made with The Nasdaq
Capital Market and/or each other securities exchange or market on which Registrable Securities are required hereunder to be listed, (B) with respect to filing fees required to be paid to the National Association of Securities Dealers, Inc. and
the NASD Regulation, Inc. and (C) in compliance with state securities or Blue Sky laws, (ii) printing expenses (including, without limitation, expenses of printing certificates for Registrable Securities and of printing prospectuses if the
printing of prospectuses is requested by the Holders of a majority of the Registrable Securities included in the Registration Statement), (iii) messenger, telephone and delivery expenses, (iv) Securities Act liability insurance, if the
Company so desires such insurance, and (v) fees and expenses of all other Persons retained by the Company in connection with the consummation of the transactions contemplated by this Agreement, including, without limitation, the Company’s
independent public accountants (including the expenses of any comfort letters or costs associated with the delivery by independent public accountants of a comfort letter or comfort letters). In addition, the Company shall be responsible for all of
its internal expenses incurred in connection with the consummation of the transactions contemplated by this Agreement (including, without limitation, all salaries and expenses of its officers and employees performing legal or accounting duties), the
expense of any annual audit, the fees and expenses incurred in connection with the listing of the Registrable Securities on any securities exchange as required hereunder. 
 8. Indemnification. 
 (a) Indemnification by the Company. The Company shall, notwithstanding
any termination of this Agreement, indemnify and hold harmless each Holder, the officers, directors, agents, brokers (including brokers who offer and sell Registrable Securities as principal as a result of a pledge or any failure to perform under a
margin call of Common Stock), investment advisors and employees of each of them, each Person who controls any such Holder (within the meaning of Section 15 of the Securities Act or Section 20 of the Exchange Act) and the officers,
directors, agents and employees of each such controlling Person, to the fullest extent permitted by applicable law, from and against any and all losses, claims, damages, liabilities, costs (including, without limitation, costs of preparation and
reasonable attorneys’ fees) and expenses (collectively, “Losses”)(as determined by a court of competent jurisdiction in a final judgment not subject to appeal or review), as incurred, arising out of or relating to any untrue or
alleged untrue statement of a material fact contained in the Registration Statement, any Prospectus or any form of prospectus or in any amendment or supplement thereto or in any preliminary prospectus, or arising out of or relating to any omission
or alleged omission of a material fact required to be stated therein or necessary to 

 
make the statements therein (in the case of any Prospectus or form of prospectus or supplement thereto, in the light of the circumstances under which they
were made) not misleading, except to the extent, but only to the extent, that (i) such untrue statements or omissions are based solely upon information regarding such Holder or such other Indemnified Party furnished in writing to the Company by
such Holder expressly for use therein and (ii) that the foregoing indemnity agreement is subject to the condition that, insofar as it relates to any untrue statement, allegedly untrue statement, omission or alleged omission made in any
preliminary prospectus but eliminated or remedied in the final prospectus (filed pursuant to Rule 424 of the Securities Act), such indemnity agreement shall not inure to the benefit of any Holder, underwriter, broker or other Person acting on behalf
of Holders of the Registrable Securities, from whom the Person asserting any loss, claim, damage, liability or expense purchased the Registrable Securities which are the subject thereof, if a copy of such final prospectus had been made available to
such Person and such Holder, underwriter, broker or other Person acting on behalf of Holders of the Registrable Securities and such final prospectus was not delivered to such Person with or prior to the written confirmation of the sale of such
Registrable Securities to such Person. The Company shall notify the Holders promptly of the institution, threat or assertion of any Proceeding of which the Company is aware in connection with the transactions contemplated by this Agreement.

 (b) Indemnification by Holders. Each Holder shall, severally and not jointly, indemnify and hold harmless the Company, its
directors, officers, agents and employees, each Person who controls the Company (within the meaning of Section 15 of the Securities Act and Section 20 of the Exchange Act), and the directors, officers, agents and employees of such
controlling Persons, to the fullest extent permitted by applicable law, from and against all Losses (as determined by a court of competent jurisdiction in a final judgment not subject to appeal or review), as incurred, arising solely out of or based
solely upon: (x) such Holder’s failure to comply with the prospectus delivery requirements of the Securities Act or (y) any untrue statement of a material fact contained in the Registration Statement, any Prospectus, or any form of
prospectus, or arising solely out of or based solely upon any omission of a material fact required to be stated therein or necessary to make the statements therein (in the case of any Prospectus or form of prospectus or supplement thereto, in the
light of the circumstances under which they were made) not misleading, to the extent, but only to the extent, that such untrue statement or omission is contained in any information so furnished in writing by such Holder or other Indemnifying Party
to the Company specifically for inclusion in the Registration Statement or such Prospectus. Notwithstanding anything to the contrary contained herein, no Holder shall be liable under this Section 8(b) that amount which exceeds the gross
proceeds to such Holder as a result of the sale of Registrable Securities pursuant to such Registration Statement. 
 (c) Conduct of
Indemnification Proceedings. If any Proceeding shall be brought or asserted against any Person entitled to indemnity hereunder (an “Indemnified Party”), such Indemnified Party promptly shall notify the Person from whom indemnity
is sought (the “Indemnifying Party”) in writing, and the Indemnifying Party shall have the right to assume the defense thereof, including the employment of counsel reasonably satisfactory to the Indemnified Party and the payment of
all fees and expenses incurred in connection with defense thereof; provided, that the failure of any Indemnified Party to give such notice shall not relieve the Indemnifying Party of its obligations or liabilities pursuant to this Agreement, except
(and only) to the extent that such failure shall have proximately and materially adversely prejudiced the Indemnifying Party. 
 An
Indemnified Party shall have the right to employ separate counsel in any such Proceeding and to participate in the defense thereof, but the fees and expenses of such counsel shall be at the expense of such Indemnified Party or Parties unless:
(1) the Indemnifying Party has agreed in writing to pay such fees and expenses; or (2) the Indemnifying Party shall have failed promptly to assume the defense of such Proceeding and to employ counsel reasonably satisfactory to such
Indemnified Party in any such Proceeding; or (3) the named parties to any such Proceeding (including any impleaded parties) include both such Indemnified Party and the Indemnifying Party, and such Indemnified Party shall have been advised by
counsel (which shall be reasonably acceptable to the Indemnifying Party) that a conflict of interest is likely to exist if the same counsel were to represent such Indemnified Party and the Indemnifying Party (in which case, if such Indemnified Party
notifies the Indemnifying Party in writing that it elects to employ separate counsel at the expense of the Indemnifying Party, the Indemnifying Party shall not have the right to assume the defense thereof and such counsel shall be at the expense of
the Indemnifying Party). The Indemnifying Party shall not be liable for any settlement of any such Proceeding effected without its written consent, which consent shall not be unreasonably withheld or delayed. No Indemnifying Party shall, without the
prior written consent of the Indemnified Party, effect any settlement of any pending Proceeding in 

 
respect of which any Indemnified Party is a party, unless such settlement includes an unconditional release of such Indemnified Party from all liability on
claims that are the subject matter of such Proceeding. 
 All fees and expenses of the Indemnified Party (including reasonable fees and
expenses to the extent incurred in connection with investigating or preparing to defend such Proceeding in a manner not inconsistent with this Section) shall be paid to the Indemnified Party, as incurred, within ten (10) Business Days of
written notice thereof to the Indemnifying Party (regardless of whether it is ultimately determined that an Indemnified Party is not entitled to indemnification hereunder; provided, that the Indemnifying Party may require such Indemnified Party to
undertake to reimburse all such fees and expenses to the extent it is finally judicially determined that such Indemnified Party is not entitled to indemnification hereunder). 
 (d) Contribution. If a claim for indemnification under Section 8(a) or 8(b) is unavailable to an Indemnified Party because of a
failure or refusal of a governmental authority to enforce such indemnification in accordance with its terms (by reason of public policy or otherwise), then each Indemnifying Party, in lieu of indemnifying such Indemnified Party, shall contribute to
the amount paid or payable by such Indemnified Party as a result of such Losses, in such proportion as is appropriate to reflect the relative fault attributable to the Indemnifying Party on the one hand and the Indemnified Party on the other in
connection with the actions, statements or omissions that resulted in such Losses as well as any other relevant equitable considerations. The relative fault of such Indemnifying Party and Indemnified Party shall be determined by reference to, among
other things, whether any action in question, including any untrue or alleged untrue statement of a material fact or omission or alleged omission of a material fact, has been taken or made by, or relates to information supplied by, such Indemnifying
Party or Indemnified Party, and the parties’ relative intent, knowledge, access to information and opportunity to correct or prevent such action, statement or omission. The amount paid or payable by a party as a result of any Losses shall be
deemed to include, subject to the limitations set forth in this Agreement, any reasonable attorneys’ or other reasonable fees or expenses incurred by such party in connection with any Proceeding to the extent such party would have been
indemnified for such fees or expenses if the indemnification provided for in this Section was available to such party in accordance with its terms. 
 The parties hereto agree that it would not be just and equitable if contribution pursuant to this Section 8(d) were determined by pro rata allocation or by any other method of allocation that does not take into account the
equitable considerations referred to in the immediately preceding paragraph. No Person guilty of fraudulent misrepresentation (within the meaning of Section 11(f) of the Securities Act) shall be entitled to contribution from any Person who was
not guilty of such fraudulent misrepresentation. 
 The indemnity and contribution agreements contained in this Section are in addition to
any liability that the Indemnifying Parties may have to the Indemnified Parties. Notwithstanding anything to the contrary contained herein, the Holders shall be liable under this Section 8(d) for only that amount as does not exceed the
net proceeds to such Holder as a result of the sale of Registrable Securities pursuant to such Registration Statement. 
 9. Rule 144. As long as any
Holder owns any Registrable Securities, the Company covenants to timely file (or obtain extensions in respect thereof and file within the applicable grace period) all reports required to be filed by the Company after the date hereof pursuant to
Section 13(a) or 15(d) of the Exchange Act and, upon the written request of any Holder, to promptly furnish to such Holder true and complete copies of all such filings. As long as any Holder owns any Registrable Securities, if the Company is
not required to file reports pursuant to Section 13(a) or 15(d) of the Exchange Act, it will prepare and furnish to the Holders and make publicly available in accordance with Rule 144(c) promulgated under the Securities Act annual and quarterly
financial statements, together with a discussion and analysis of such financial statements in form and substance substantially similar to those that would otherwise be required to be included in reports required by Section 13(a) or 15(d) of the
Exchange Act, as well as any other information required thereby, in the time period that such filings would have been required to have been made under the Exchange Act. The Company further covenants that it will take such further action as any
Holder may reasonably request in writing, all to the extent required from time to time to enable such Person to sell the shares of Common Stock issuable upon conversion of the Shares without registration under the Securities Act within the
limitation of the exemptions provided by Rule 144 promulgated under the Securities Act, including providing any legal opinions relating to such sale pursuant to Rule 144. 

 10. Miscellaneous. 
 (a) Remedies. In the event of a breach by the Company or by a Holder, of any of their obligations under this Agreement, each Holder or the Company, as the case may be, in addition to being entitled to exercise
all rights granted by law and under this Agreement, including recovery of damages, will be entitled to specific performance of its rights under this Agreement. The Company and each Holder agree that monetary damages would not provide adequate
compensation for any losses incurred by reason of a breach by it of any of the provisions of this Agreement and hereby further agrees that, in the event of any action for specific performance in respect of such breach, it shall waive the defense
that a remedy at law would be adequate. 
 (b) Failure to File Registration Statement and Effectiveness of Registration Statement. The
Company and the Purchasers agree that the Purchasers will suffer damages if the Registration Statement is not filed on or prior to the applicable Filing Date and not declared effective by the Commission on or prior to 120 days after the applicable
Filing Date. The Company and the Purchasers further agree that it would not be feasible to ascertain the extent of such damages with precision. Accordingly, if (A) the Registration Statement is not filed on or prior to the applicable Filing
Date, or (B) the Registration Statement is not declared effective by the Commission on or prior to 120 days after the applicable Filing Date (either such failure being referred to as an “Event,” and for purposes of clauses
(A) and (B) the date on which such Event occurs, being referred to as “Event Date”), the Company shall pay in cash an amount, as partial liquidated damages and not as a penalty, to each Purchaser of Shares, as long as such
Shares are outstanding, an amount equal to 1% of the product obtained by multiplying the number of Shares then held by a Purchaser by $0.25 for the first calendar month and 1% of the product obtained by multiplying the number of Shares then held by
a Purchaser by $0.25 per calendar month thereafter or portion thereof from the Event Date until the applicable Event is cured or until the Registrable Securities are saleable under Rule 144. Notwithstanding anything to the contrary in this paragraph
(b), if (i) either of the Events described in clauses (A) or (B) shall have occurred, (ii) on or prior to the applicable Event Date the Company shall have exercised its rights under Section 5(n) hereof and
(iii) the postponement or suspension permitted pursuant to such Section 5(n) shall remain effective as of such applicable Event Date, then the applicable Event Date shall be deemed instead to occur on the second Business Day
following the termination of such postponement or suspension which is permitted pursuant to Section 5(n). 
 (c) Amendments
and Waivers. The provisions of this Agreement, including the provisions of this sentence, may not be amended, modified or supplemented, and waivers or consents to departures from the provisions hereof may not be given, unless the same shall be
in writing and signed by the Company and the Holders of a majority of the Registrable Securities outstanding. 
 (d) Notices. Any and
all notices or other communications or deliveries required or permitted to be provided hereunder shall be in writing and shall be deemed given and effective on the earlier of (i) the date of transmission, if such notice or communication is
delivered via facsimile at the facsimile telephone number specified for notice prior to 5:00 p.m., New York City time, on a Business Day, (ii) the Business Day after the date of transmission, if such notice or communication is delivered via
facsimile at the facsimile telephone number specified for notice later than 5:00 p.m., New York City time, on any date and earlier than 11:59 p.m., New York City time, on such date, (iii) the Business Day following the date of mailing, if sent
by nationally recognized overnight courier service or (iv) actual receipt by the party to whom such notice is required to be given. The addresses for such communications shall be with respect to each Holder at its address set forth in the
Purchase Agreement , or with respect to the Company, addressed to: 
  

			
	  	  	 Verticalnet, Inc.
 400 Chester Field
Parkway
 Malvern, PA 19355
 Attention: General Counsel

Tel. No.: (610) 240-0600
 Fax No.:
(610) 240-9470

	 with copies (which copies
 shall not constitute notice

 to the Company) to:
	  	
		  	 Morgan, Lewis & Bockius LLP
 1701 Market
Street

			
	  	  	 Philadelphia, PA 19103
 Attention: James W. McKenzie,
Jr.
 Tel. No.: (215) 963-5134
 Fax No.: (215) 963-5001

 or to such other address or addresses or facsimile number or numbers as any such party may most recently have
designated in writing to the other parties hereto by such notice. 
 (e) Successors and Assigns. This Agreement shall be binding upon
and inure to the benefit of the parties and their successors and permitted assigns and shall inure to the benefit of each Holder and its successors and assigns. The Company may not assign this Agreement or any of its rights or obligations hereunder
without the prior written consent of a majority in interest of the Holders. Each Purchaser may assign its rights hereunder in the manner and to the Persons as permitted under the Purchase Agreement. 
 (f) Assignment of Registration Rights. The rights of each Holder hereunder, including the right to have the Company register for resale
Registrable Securities in accordance with the terms of this Agreement, shall be assignable by each Holder to any Affiliate of such Holder or any other Holder or Affiliate of any other Holder of all or a portion of the Registrable Securities if:
(i) the Holder agrees in writing with the transferee or assignee to assign such rights, and a copy of such agreement is furnished to the Company within a reasonable time after such assignment, (ii) the Company is, within five (5) days
after such transfer or assignment, furnished with written notice of (a) the name and address of such transferee or assignee, and (b) the securities with respect to which such registration rights are being transferred or assigned,
(iii) following such transfer or assignment the further disposition of such securities by the transferee or assignees is restricted under the Securities Act and applicable state securities laws, (iv) at or before the time the Company
receives the written notice contemplated by clause (ii) of this Section, the transferee or assignee agrees in writing with the Company to be bound by all of the provisions of this Agreement, and (v) such transfer shall have been made in
accordance with the applicable requirements of the Purchase Agreement. In addition, each Holder shall have the right to assign its rights hereunder to any other Person with the prior written consent of the Company, which consent shall not be
unreasonably withheld. The rights to assignment shall apply to the Holders (and to subsequent) successors and assigns. 
 (g)
Counterparts. This Agreement may be executed in any number of counterparts, each of which when so executed shall be deemed to be an original and, all of which taken together shall constitute one and the same Agreement. In the event that any
signature is delivered by facsimile transmission, such signature shall create a valid binding obligation of the party executing (or on whose behalf such signature is executed) the same with the same force and effect as if such facsimile signature
were the original thereof. 
 (h) Governing Law. This Agreement shall be governed by and construed in accordance with the internal
laws of the State of New York, without giving effect to any of the conflicts of law principles which would result in the application of the substantive law of another jurisdiction. This Agreement shall not be interpreted or construed with any
presumption against the party causing this Agreement to be drafted. The Company and the Holders agree that venue for any dispute arising under this Agreement will lie exclusively in the state or federal courts located in New York County, New York,
and the parties irrevocably waive any right to raise forum non conveniens or any other argument that New York is not the proper venue. The Company and the Holders irrevocably consent to personal jurisdiction in the state and federal courts of
the state of New York. The Company and the Holders consent to process being served in any such suit, action or proceeding by mailing a copy thereof to such party at the address in effect for notices to it under this Agreement and agree that such
service shall constitute good and sufficient service of process and notice thereof. Nothing in this Section 10(h) shall affect or limit any right to serve process in any other manner permitted by law. The Company and the Holders hereby
agree that the prevailing party in any suit, action or proceeding arising out of or relating to this Agreement, shall be entitled to reimbursement for reasonable legal fees from the non-prevailing party. 
 (i) Cumulative Remedies. The remedies provided herein are cumulative and not exclusive of any remedies provided by law. 
 (j) Severability. The provisions of this Agreement are severable and, in the event that any court of competent jurisdiction shall determine that
any one or more of the provisions or part of the provisions 

 
contained in this Agreement shall, for any reason, be held to be invalid, illegal or unenforceable in any respect, such invalidity, illegality or
unenforceability shall not affect any other provision or part of a provision of this Agreement and this Agreement shall be reformed and construed as if such invalid or illegal or unenforceable provision, or part of such provision, had never been
contained herein, so that such provisions would be valid, legal and enforceable to the maximum extent possible. 
 (k) Headings. The
headings herein are for convenience only, do not constitute a part of this Agreement and shall not be deemed to limit or affect any of the provisions hereof. 
 (l) Independent Nature of Purchasers. The Company acknowledges that the obligations of each Purchaser under the Transaction Documents are several and not joint with the obligations of any other Purchaser, and
no Purchaser shall be responsible in any way for the performance of the obligations of any other Purchaser under the Transaction Documents. The Company acknowledges that the decision of each Purchaser to purchase securities pursuant to the Purchase
Agreement has been made by such Purchaser independently of any other purchase and independently of any information, materials, statements or opinions as to the business, affairs, operations, assets, properties, liabilities, results of operations,
condition (financial or otherwise) or prospects of the Company or of its Subsidiaries which may have made or given by any other Purchaser or by any agent or employee of any other Purchaser, and no Purchaser or any of its agents or employees shall
have any liability to any Purchaser (or any other person) relating to or arising from any such information, materials, statements or opinions. The Company acknowledges that nothing contained herein, or in any Transaction Document, and no action
taken by any Purchaser pursuant hereto or thereto (including, but not limited to, the (i) inclusion of a Purchaser in the Registration Statement and (ii) review by, and consent to, such Registration Statement by a Purchaser) shall be
deemed to constitute the Purchasers as a partnership, an association, a joint venture or any other kind of entity, or create a presumption that the Purchasers are in any way acting in concert or as a group with respect to such obligations or the
transactions contemplated by the Transaction Documents. The Company acknowledges that each Purchaser shall be entitled to independently protect and enforce its rights, including without limitation, the rights arising out of this Agreement or out of
the other Transaction Documents, and it shall not be necessary for any other Purchaser to be joined as an additional party in any proceeding for such purpose. The Company acknowledges that it has elected to provide all Purchasers with the same terms
and Transaction Documents for the convenience of the Company and not because it was required or requested to do so by the Purchasers. The Company acknowledges that such procedure with respect to the Transaction Documents in no way creates a
presumption that the Purchasers are in any way acting in concert or as a group with respect to the Transaction Documents or the transactions contemplated hereby or thereby. 
 (m) Termination of Registration Rights. All registration rights granted under this Agreement and the Company’s obligations with respect
thereto, including the Company’s obligations set forth in Section 10(b), shall terminate and be of no further force and effect and the Registrable Securities then owned by or issuable to such Holder shall no longer be deemed
“Registrable Securities,” if all Registrable Securities held by and issuable to such Holder could be sold under Rule 144, including Rule 144(k). 
 [REMAINDER OF PAGE INTENTIONALLY LEFT BLANK] 

 IN WITNESS WHEREOF, the parties hereto have caused this Registration Rights Agreement to be duly executed
by their respective authorized persons as of the date first indicated above. 
  

			
	VERTICALNET, INC.
		
	By:	 	 
		 	Name:
		 	Title:
	
	PURCHASER:
                                        
                
		 	Please print purchaser name
		
	By:	 	 
		 	Name:
		 	Title:

 Schedule I 
 List of Purchasers 

 Annex A 
 Plan of Distribution 
 The selling shareholders may, from time to time, sell any or all of their
shares of common stock on any stock exchange, market or trading facility on which the shares are traded or in private transactions. These sales may be at fixed or negotiated prices. The selling shareholders may use any one or more of the following
methods when selling shares: 
  

	 	•	 	 ordinary brokerage transactions and transactions in which the broker-dealer solicits purchasers; 

  

	 	•	 	 block trades in which the broker-dealer will attempt to sell the shares as agent but may position and resell a portion of the block as principal to facilitate the
transaction; 

  

	 	•	 	 purchases by a broker-dealer as principal and resale by the broker-dealer for its account; 

  

	 	•	 	 an exchange distribution in accordance with the rules of the applicable exchange; 

  

	 	•	 	 privately negotiated transactions; 

  

	 	•	 	 short sales; 

  

	 	•	 	 through the writing or settlement of options or other hedging transactions, whether through an options exchange or otherwise; 

  

	 	•	 	 broker-dealers may agree with the selling shareholders to sell a specified number of such shares at a stipulated price per share; and 

 

	 	•	 	 a combination of any such methods of sale. 

 The selling shareholders may also sell shares under Rule 144 under the Securities Act, if available, rather than under this prospectus. 
 The selling shareholders may also engage in short sales against the box, puts and calls and other transactions in our securities or derivatives of our securities and may sell or deliver shares in connection with these trades. 
 Broker-dealers engaged by the selling shareholders may arrange for other brokers-dealers to participate in sales. Broker-dealers may receive commissions
or discounts from the selling shareholders (or, if any broker-dealer acts as agent for the purchaser of shares, from the purchaser) in amounts to be negotiated. The selling shareholders do not expect these commissions and discounts to exceed what is
customary in the types of transactions involved. Any profits on the resale of shares of common stock by a broker-dealer acting as principal might be deemed to be underwriting discounts or commissions under the Securities Act. Discounts, concessions,
commissions and similar selling expenses, if any, attributable to the sale of shares will be borne by a selling shareholder. The selling shareholders may agree to indemnify any agent, dealer or broker-dealer that participates in transactions
involving sales of the shares if liabilities are imposed on that person under the Securities Act. 
 In connection with the sale of our
common stock or interests therein, the selling shareholders may enter into hedging transactions with broker-dealers or other financial institutions, which may in turn engage in short sales of the common stock in the course of hedging the positions
they assume. The selling shareholders may also sell shares of our common stock short and deliver these securities to close out their short positions, or loan or pledge the common stock to broker-dealers that in turn may sell these securities. The
selling shareholders may also enter into option or other transactions with broker-dealers or other financial institutions or the creation of one or more derivative securities which require the delivery to such broker-dealer or other financial
institution of shares offered 

 
by this prospectus, which shares such broker-dealer or other financial institution may resell pursuant to this prospectus (as supplemented or amended to
reflect such transaction). 
 The selling shareholders may from time to time pledge or grant a security interest in some or all of the shares
of common stock owned by them and, if they default in the performance of their secured obligations, the pledgees or secured parties may offer and sell the shares of common stock from time to time under this prospectus after we have filed an
amendment to this prospectus under Rule 424(b)(3) or other applicable provision of the Securities Act of 1933 amending the list of selling shareholders to include the pledgee, transferee or other successors in interest as selling shareholders under
this prospectus. 
 The selling shareholders also may transfer the shares of common stock in other circumstances, in which case the
transferees, pledgees or other successors in interest will be the selling beneficial owners for purposes of this prospectus and may sell the shares of common stock from time to time under this prospectus after we have filed an amendment to this
prospectus under Rule 424(b)(3) or other applicable provision of the Securities Act of 1933 amending the list of selling shareholders to include the pledgee, transferee or other successors in interest as selling shareholders under this prospectus.

 The selling shareholders and any broker-dealers or agents that are involved in selling the shares of common stock may be deemed to be
“underwriters” within the meaning of the Securities Act in connection with such sales. In such event, any commissions received by such broker-dealers or agents and any profit on the resale of the shares of common stock purchased by them
may be deemed to be underwriting commissions or discounts under the Securities Act. 
 We are required to pay all fees and expenses incident
to the registration of the shares of common stock. We have agreed to indemnify the selling shareholders against certain losses, claims, damages and liabilities, including liabilities under the Securities Act. 
 The selling shareholders have advised us that they have not entered into any agreements, understandings or arrangements with any underwriters or
broker-dealers regarding the sale of their shares of common stock, nor is there an underwriter or coordinating broker acting in connection with a proposed sale of shares of common stock by any selling shareholder. If we are notified by any selling
shareholder that any material arrangement has been entered into with a broker-dealer for the sale of shares of common stock, if required, we will file a supplement to this prospectus. If the selling shareholders use this prospectus for any sale of
the shares of common stock, they will be subject to the prospectus delivery requirements of the Securities Act. 
 The anti-manipulation
rules of Regulation M under the Securities Exchange Act of 1934 may apply to sales of our common stock and activities of the selling shareholders.

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