Document:

Form of Common Stock Purchase Warrant

 Exhibit 4.3 
  

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 (the “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 Initial Exercise Date (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 $1.25, 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 Securities Purchase Agreement (the “Purchase Agreement”), dated
as of August 4, 2004, among the Company and the purchasers signatory thereto. 
  
 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. 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) 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 
  

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 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 at any time after one year from the date of issuance of this Warrant there is no effective Registration Statement registering the
resale of the Warrant Shares by the Holder, 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.

  
 (e) Notwithstanding anything to
the contrary set forth in subsection (d) above, the Holder may not utilize the “cashless exercise” method of payment of the Exercise Price if, on the date of exercise hereof, a Registration Statement for the resale of the Warrant Shares
has been filed and declared effective and maintained effective for at least 15 calendar days in the aggregate, but thereafter has ceased to be effective for a period of time which is not more than either (x) 25 Trading Days in the aggregate during
the year (defined as a period of 365 days commencing on the date a Registration Statement is first effective) in which such date of exercise occurs or (y) 15 consecutive Trading Days immediately prior to such date of exercise.  
  

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 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, Division and Combination. 
  
 (a) Subject to compliance with any applicable securities
laws and the conditions set forth in Sections 1 and 7(e) hereof and to the provisions of Section 4.1 of the Purchase Agreement, this Warrant and all rights hereunder are transferable, in whole or in part, upon surrender of this Warrant at the
principal office of the Company, together with a written assignment of this Warrant substantially in the form attached hereto duly executed by the Holder or its agent or attorney and funds sufficient to pay any transfer taxes payable upon the making
of such transfer. Upon such surrender and, if required, such payment, the Company shall execute and deliver a new Warrant or Warrants in the name of the assignee or assignees and in the denomination or denominations specified in such instrument of
assignment, and shall issue to the assignor a new Warrant evidencing the portion of this Warrant not so assigned, and this Warrant shall promptly be cancelled. A Warrant, if properly assigned, may be exercised by a new holder for the purchase of
Warrant Shares without having a new Warrant issued. 
  
 (b) This Warrant may be divided or combined with other Warrants upon presentation hereof at the aforesaid office of the Company, together with a written notice specifying the names and denominations in which new
Warrants are to be issued, signed by the Holder or its agent or attorney. Subject to compliance with Section 7(a), as to any transfer which may be involved in such division or combination, the Company shall execute and deliver a new Warrant
or Warrants in exchange for the Warrant or Warrants to be divided or combined in accordance with such notice. 
  

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 (c) The Company shall prepare, issue and deliver at its own expense (other than transfer
taxes) the new Warrant or Warrants under this Section 7. 
  
 (d) The Company agrees to maintain, at its aforesaid office, books for the registration and the registration of transfer of the Warrants. 
  
 (e) If, at the time of the surrender of this Warrant or the Warrant Shares in connection with any transfer
of this Warrant or the Warrant Shares, as applicable, the transfer of this Warrant shall not be registered pursuant to an effective registration statement under the Securities Act and under applicable state securities or blue sky laws, the Company
may require, as a condition of allowing such transfer (i) that the Holder or transferee of this Warrant or Warrant Shares, as the case may be, furnish to the Company an executed copy of the Assignment Form attached hereto and a written opinion of
counsel (which opinion shall be reasonably acceptable to the Company as to form, substance and scope) to the effect that such transfer may be made without registration under the Securities Act and under applicable state securities or blue sky laws,
(ii) that the Holder or transferee execute and deliver to the Company an investment letter in form and substance acceptable to the Company and (iii) that the transferee be an “accredited investor” as defined in Rule 501(a)(1), (a)(2),
(a)(3), (a)(7), or (a)(8) promulgated under the Securities Act or a qualified institutional buyer as defined in Rule 144A(a) under the Securities Act. 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. 
  
 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 
  

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 following. 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. Reorganization, Reclassification, Merger, Consolidation or Disposition of Assets. In case the Company shall reorganize its capital, reclassify its capital stock, consolidate or merge with or into another
corporation (where the Company is not the surviving corporation or where there is a change in or distribution with respect to the Common Stock of the Company), or sell, transfer or otherwise dispose of its property, assets or business to another
corporation and, pursuant to the terms of such reorganization, reclassification, merger, consolidation or disposition of assets, shares of common stock of the successor or acquiring corporation, or any cash, shares of stock or other securities or
property of any nature whatsoever (including warrants or other subscription or purchase rights) in addition to or in lieu of common stock of the successor or acquiring corporation (“Other Property”), are to be received by or
distributed to the holders of Common Stock of the Company, then the Holder shall have the right thereafter to receive, upon exercise of this Warrant, the number of shares of Common Stock of the successor or acquiring corporation or of the Company,
if it is the surviving corporation, and Other Property receivable upon or as a result of such reorganization, reclassification, merger, consolidation or disposition of assets by a Holder of the number of shares of Common Stock for which this Warrant
is exercisable immediately prior to such event. In case of any such reorganization, reclassification, merger, consolidation or disposition of assets, the successor or acquiring corporation (if other than the Company) shall expressly assume the due
and punctual observance and performance of each and every covenant and condition of this Warrant to be performed and observed by the Company and all the obligations and liabilities hereunder, subject to such modifications as may be deemed
appropriate (as determined in good faith by resolution of the Board of Directors of the Company) in order to provide for adjustments of Warrant Shares for which this Warrant is exercisable which shall be as nearly equivalent as practicable to the
adjustments provided for in this Section 12. For purposes of this Section 12, “common stock of the successor or acquiring corporation” shall include stock of such corporation of any class which is not preferred as to
dividends or assets over any other class of stock of such corporation and which is not subject to redemption and shall also include any evidences of indebtedness, 
  

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 shares of stock or other securities which are convertible into or exchangeable for any such stock, either immediately or
upon the arrival of a specified date or the happening of a specified event and any warrants or other rights to subscribe for or purchase any such stock. The foregoing provisions of this Section 12 shall similarly apply to successive
reorganizations, reclassifications, mergers, consolidations or disposition of assets. 
  
 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. Notice of Corporate Action. If at any time: 
  
 (a) the Company shall take a record of the holders of its Common Stock for the purpose of entitling them to receive a dividend or other
distribution, or any right to subscribe for or purchase any evidences of its indebtedness, any shares of stock of any class or any other securities or property, or to receive any other right, or 
  
 (b) there shall be any capital reorganization of the
Company, any reclassification or recapitalization of the capital stock of the Company or any consolidation or merger of the Company with, or any sale, transfer or other disposition of all or substantially all the property, assets or business of the
Company to, another corporation or, 
  
 (c) there
shall be a voluntary or involuntary dissolution, liquidation or winding up of the Company; 
  
 then, in any one or more of such cases, the Company shall give to Holder (i) at least 10 days’ prior written notice of the date on which a record date shall be selected for such dividend, distribution or right or
for determining rights to vote in respect of any such reorganization, reclassification, merger, consolidation, sale, transfer, disposition, liquidation or winding up, and (ii) in the case of any such reorganization, reclassification, merger,
consolidation, sale, transfer, disposition, dissolution, liquidation or winding up, at least 10 days’ prior written notice of the date when the same shall take place. Such notice in accordance with the foregoing clause also shall specify (i)
the date on which any such record is to be taken for the purpose of such dividend, distribution or right, the date on which the holders of Common Stock shall be entitled to any such dividend, distribution or right, and the amount and character
thereof, and (ii) the date on which any such reorganization, reclassification, merger, consolidation, sale, transfer, disposition, dissolution, liquidation or winding up is to take place and the time, if any such time is to be fixed, as of which the
holders of Common Stock shall be entitled to exchange their shares of Common Stock for securities or other property deliverable upon such disposition, dissolution, liquidation or winding up. Each such written notice shall be sufficiently given if
addressed to Holder at the last address of Holder appearing on the books of the Company and delivered in accordance with Section 17(d). 
  

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 16. Authorized Shares. The Company covenants that during the 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. The Company further covenants that its issuance
of this Warrant shall constitute full authority to its officers who are charged with the duty of executing stock certificates to execute and issue the necessary certificates for the Warrant Shares upon the exercise of the purchase rights under this
Warrant. The Company will take all such reasonable action as may be necessary to assure that such Warrant Shares may be issued as provided herein without violation of any applicable law or regulation, or of any requirements of the Trading Market
upon which the Common Stock may be listed. 
  
 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. 
  
 17. 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 
  

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 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. 
  

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 IN WITNESS WHEREOF, the Company has caused this Warrant to be executed by its officer thereunto duly
authorized. 
  
 Dated: August 5, 2004 
  

			
	VERTICALNET, INC.
		
	 By:
	 	 /s/ Gene S. Godick

	 Name:
	 	 Gene S. Godick

	 Title:
	 	Executive Vice President and Chief Financial Officer

  

 10 

 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 Sections 3.2(b) through (e) of that certain Securities Purchase Agreement dated as of August     , 2004. 
  

			
	 [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 Section 7(e) of 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 A 
  
 WARRANTHOLDERS 
  

			
	 NAME

	 	 NO. OF WARRANT SHARES

	 Castle Creek Technology Partners LLC
	 	180,000
		
	 William Corbett
	 	35,000
		
	 Terrence Cush
	 	5,000
		
	 Cranshire Capital L.P.
	 	200,000
		
	 Greenwich Growth Fund Limited
	 	60,000
		
	 RHP Master Fund, Ltd.
	 	80,000
		
	 Gary Shemano
	 	35,000
		
	 Whalehaven Capital LP
	 	40,000
		
	 Whalehaven Fund Limited
	 	40,000
		
	 WPG Select Technology Fund, L.P.
	 	65,994
		
	 WPG Select Technology Overseas Fund, Ltd.
	 	262,679
		
	 WPG Select Technology QP Fund, L.P.
	 	271,327Registration Rights Agreement Dated as of July 16, 2004

 Exhibit 4.4 
  
 REGISTRATION RIGHTS AGREEMENT 
  

This REGISTRATION RIGHTS AGREEMENT (this “Agreement”) is made and entered into as of July 16, 2004, by and among Verticalnet, Inc., a
Pennsylvania corporation (“Verticalnet”), and each party listed on the signature page to this Agreement and any other party who joins this Agreement after the date hereof (individually, a “Stockholder” and
collectively, the “Stockholders”). 
  
 Background 
  
 Verticalnet, Popcorn Acquisition
Sub, Inc., a Delaware corporation and wholly-owned direct subsidiary of Verticalnet (“Acquisition Sub”), and B2eMarkets, Inc., a Delaware corporation (“B2e”), are parties to the Agreement of Merger dated of even
date herewith (the “Merger Agreement”), pursuant to which, among other things, B2e is merging with and into Acquisition Sub (the “Merger”) and Verticalnet will issue to the Stockholders, who, immediately prior to
the Effective Time of the Merger, are holders of shares of B2e Preferred Stock (as defined in the Merger Agreement), shares of Verticalnet Common Stock, $.01 par value per share (“Verticalnet Common Stock”). Pursuant to the Merger
Agreement, the Stockholders shall have certain rights with respect to the registration of such shares of Verticalnet Common Stock received as consideration in the Merger for sale under the Securities Act. 
  
 Terms and Conditions 
  
 In consideration of the mutual covenants and promises contained in the Merger
Agreement and in this Agreement and other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, Verticalnet and the Stockholders agree as follows: 
  
 1. Certain Definitions. As used in this Section 1 and elsewhere in
this Agreement, the following terms shall have the following respective meanings: 
  
 “Effective Period” has the meaning set forth in Section 4(a). 
  
 “Exchange Act” means the Securities Exchange Act of 1934, as amended, and the rules and regulations promulgated thereunder. 

 
 “Conversion Shares” means the shares of Verticalnet
Common Stock which may become issuable upon conversion of the Merger Note. 
  
 “Merger Note” means that certain convertible promissory note dated of even date herewith in the aggregate principal amount of $5,925,603, subject to adjustment as provided therein, from Verticalnet to
FBR Investment Management, Inc., in its capacity as the Stockholders’ Representative of the stockholders of B2e. 
  
 “Merger Shares” means (a) the shares of Verticalnet Common Stock issuable to the Stockholders pursuant to the Merger Agreement, (b) the
Conversion Shares, and (c) any other shares of Verticalnet Common Stock issued in respect of such shares (because of stock splits, stock dividends, reclassifications, recapitalizations or similar events); provided, however, that the
Conversion Shares shall not be deemed Merger Shares if the Shareholder Approval has not been obtained; and provided, further, that shares of Common Stock held by any Stockholder which are 

 Merger Shares shall cease to be Merger Shares upon any sale by such Stockholder pursuant to the Resale Registration
Statement or a Piggyback Registration Statement, or pursuant to the provisions of Rule 144. 
  
 “Piggyback Registration Statement” means a Registration Statement whereby a Stockholder has exercised its Piggyback Right to include Merger Shares in such Registration Statement. 
  
 “Registration Expenses” means the expenses described in
Section 6. 
  
 “Registration Statement” means a
registration statement filed by Verticalnet with the SEC under the Securities Act for a public offering and sale of securities of Verticalnet. 
  
 “Rule 144” means Rule 144 of the SEC promulgated under the Securities Act. 
  
 “SEC” means the Securities and Exchange Commission or any other Federal agency at the time administering
the Securities Act. 
  
 “Securities Act” means
the Securities Act of 1933, as amended, and the rules and regulations promulgated thereunder. 
  
 “Shareholder Approval” means the approval by the shareholders of Verticalnet, by the at least the minimum vote required under applicable Law and the rules and regulations of the Nasdaq Stock Market,
of the Merger Note Proposal. 
  
 “Shareholder Meeting
Date” means the date upon which Verticalnet’s shareholders vote upon the Merger Note Proposal. 
  
 “Special Registration Statement” shall mean a Registration Statement relating to any employee benefit plan or with respect to any
corporate reorganization or other transaction under Rule 145 under the Securities Act, including without limitation, a Registration Statement on Form S-8 or Form S-4. 
  
 Other terms used herein and not otherwise defined shall have the respective meanings ascribed to them in the Merger
Agreement. 
  
 2. Resale Registration Statement. On or
prior to 45 days after the Shareholder Meeting Date, Verticalnet shall file a Registration Statement on Form S-3 (the “Resale Registration Statement”) registering the offering and sale by the Stockholders of the Merger Shares and
shall use its best efforts to cause the Resale Registration Statement to become effective within 60 days after the filing thereof and to remain effective during the Effective Period. The Resale Registration Statement shall include the “Plan
of Distribution” attached hereto as Exhibit A. 
  
 3. Piggyback Registration Statement. 
  
 (a) If,
at any time prior to Verticalnet’s filing of the Resale Registration Statement with the SEC, Verticalnet files a Registration Statement for its own account or for the account of others (excluding Special Registration Statements), it shall
notify all of the Stockholders in writing (the “Verticalnet Notice”). Each Stockholder shall have the right (the “Piggyback Right”), subject to the limitations set forth in Section 3(b), to include in any such
Registration Statement all or any portion of the Merger Shares then held by such Stockholder. In 
  

 2 

 order to exercise the Piggyback Right, a Stockholder shall give written notice to Verticalnet (the “Piggyback
Notice”) no later than 15 days following the date on which Verticalnet gives the Verticalnet Notice. The Piggyback Notice shall set forth the number of Merger Shares that such Stockholder desires to include in the Registration Statement.

  
 (b) If the Registration Statement under which Verticalnet
gives notice under this Section 3 is for an underwritten offering, Verticalnet shall so advise the Stockholders in the Verticalnet Notice. In such event, the right of any such Stockholder to be included in a registration pursuant to this Section 3
shall be conditioned upon such Stockholder’s participation in such underwritten offering and the inclusion of such Stockholder’s Merger Shares in the underwritten offering to the extent provided herein. All Stockholders proposing to
distribute their Merger Shares 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 Verticalnet. 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 Verticalnet, all securities Verticalnet proposes to register, whether for its own account or for the account of any of its securityholders who have exercised demand registration rights; (ii) second, to the
securities of any other securityholders of Verticalnet with rights superior to those of the Stockholders; (iii) third, to the Stockholders on a pro rata basis based on the total number of Merger Shares requested to be included in such registration
by the Stockholders; and (iv) fourth, to other securities requested to be included in such Registration Statement. No such reduction shall reduce the securities being offered by Verticalnet for its own account to be included in the registration and
underwriting. If any Stockholder disapproves of the terms of any such underwriting, such Stockholder may elect to withdraw therefrom by written notice to Verticalnet and the underwriter, delivered at least 30 days prior to the effective date of the
Registration Statement. 
  
 (c) Verticalnet shall have the right
to terminate or withdraw any registration initiated by it under this Section 3 prior to the effectiveness of such registration whether or not any Stockholder has elected to include securities in such registration. 
  
 4. Registration Procedures. In connection with the registration of the
Merger Shares under the Securities Act, Verticalnet shall as expeditiously as possible: 
  
 (a) prepare and file with the SEC any amendments and supplements to the Resale Registration Statement and the prospectus included therein as may be necessary to keep the Resale Registration Statement effective for a
period ending on the earliest of (i) the date on which all Merger Shares registered under such Resale Registration Statement have been sold and (ii) the date all Merger Shares may be sold under Rule 144 within any 90-day period (the
“Effective Period”); 
  
 (b) furnish to each
Stockholder who so requests such reasonable numbers of copies of the prospectus relating to the Resale Registration Statement or a Piggyback Registration Statement, as applicable, in conformity with the requirements of the Securities Act, and such
other documents as such Stockholder may reasonably request in order to facilitate the public sale or other disposition of the Merger Shares owned by such Stockholder; 
  
 (c) use its best efforts to register or qualify the Merger Shares covered by the Resale Registration Statement or a
Piggyback Registration Statement under the securities or Blue Sky Laws of such states as each Stockholder shall reasonably request, and do any and all other 
  

 3 

 acts and things that may reasonably be necessary or desirable to enable such Stockholder to consummate the public sale or
other disposition in such states of the Merger Shares owned by such Stockholder; provided, however, that Verticalnet shall not be required in connection with this paragraph (c) to qualify as a foreign corporation or execute a general
consent to service of process in any jurisdiction; 
  
 (d) from
the date hereof until the first anniversary of the date hereof and upon fifteen (15) Business Days advance written notice to the Company from any Stockholder, the Company will make available its then-current Chief Executive Officer and Chief
Financial Officer for the purpose of participating in a reasonable number of “roadshow” presentations to financial analysts, investment banking personnel, securities brokers and dealers and prospective investors that may be conducted from
time to time in conjunction with the sale of some or all of the Merger Shares, which participation shall in no event exceed ten (10) Business Days; and 
  
 (e) upon the occurrence of any event of the kind described in Section 7(c)(i)-(iv) below, use its best efforts to promptly rectify, or take such
reasonable action with respect to, such event so that each Stockholder is entitled to resume the disposition of such Stockholder’s Merger Shares in accordance with the terms of this Agreement. 
  
 5. Blackout Periods; Revised Prospectus. 
  
 (a) Verticalnet may by written notice require that each Stockholder who has
requested a prospectus immediately cease sales of shares pursuant to the Resale Registration Statement or a Piggyback Registration Statement (a “Black Out Requirement”) at any time that Verticalnet becomes engaged in a business
activity or negotiation which is not disclosed in the prospectus included in such Resale Registration Statement or Piggyback Registration Statement and which Verticalnet reasonably believes must be disclosed therein under applicable Law and which
Verticalnet desires to keep confidential for business purposes, the disclosure of which at such time Verticalnet believes could have an adverse effect on Verticalnet or its business or prospects or on the successful completion of such business
activity or negotiation or on the market price of Verticalnet’s stock. The Black Out Requirement shall not exceed 90 days in any twelve month period, and the time period of any one Black Out Requirement shall not exceed 45 consecutive days.
Verticalnet shall not be required to disclose to any Stockholders the reasons for requiring a suspension of sales under the Resale Registration Statement or a Piggyback Registration Statement, and no Stockholder shall disclose to any third party
(other than financial advisors or other experts consulted by such Stockholder with respect to any such sales of shares who agree to keep the information confidential) the existence of any such suspension. Verticalnet will promptly notify all such
Stockholders as soon as Verticalnet determines that the Blackout Requirement is no longer necessary. 
  
 (b) If Verticalnet has delivered a prospectus to a Stockholder and after having done so the prospectus is amended to comply with the requirements of the
Securities Act, Verticalnet shall promptly notify such Stockholder and, if requested, such Stockholder shall immediately cease making offers of Merger Shares and return all undistributed prospectuses to Verticalnet. Verticalnet shall promptly
provide such Stockholder with a revised prospectus and, following receipt of the revised prospectus, such Stockholder shall be free to resume making offers of the Merger Shares held by such Stockholders. 
  
 6. Allocation of Expenses. Verticalnet will pay all Registration
Expenses relating to the Resale Registration Statement and any Piggyback Registration Statement. For purposes of this Section 6, the term “Registration Expenses” shall mean all reasonable expenses incurred by 
  

 4 

 Verticalnet in complying with this Agreement, including all registration and filing fees, listing fees, printing
expenses, fees and disbursements of counsel for Verticalnet, and any state Blue Sky fees and expenses; provided, however, that except as expressly set forth herein, in no event shall Registration Expenses include any underwriting fees,
discounts, commissions or fees attributable to the sale of the Merger Shares or any counsel, accounting or other Persons retained by any Stockholder in connection with the consummation of the transactions contemplated by this Agreement. 

 
 7. Stockholder Covenants. Each Stockholder hereby covenants and
agrees that: 
  
 (a) it will not sell any Merger Shares under the
Resale Registration Statement or any Piggyback Registration Statement until it has requested and received a prospectus from Verticalnet and received notice from Verticalnet that such Resale Registration Statement or Piggyback Registration Statement
has become effective; 
  
 (b) it will comply with the prospectus
delivery requirements of the Securities Act as applicable to such Stockholder in connection with sales of Merger Shares pursuant to the Resale Registration Statement or any Piggyback Registration Statement; 
  
 (c) upon receipt of a notice from Verticalnet of the occurrence of any event
of the kind described in Section 7(c)(i)–(iv) below, such Stockholder shall forthwith discontinue disposition of such Merger Shares under the Resale Registration Statement and/or any Piggyback Registration Statement until such Stockholder
receives copies of the supplemented prospectus and/or amended Resale Registration Statement and/or Piggyback Registration Statement or until such Stockholder is advised in writing by Verticalnet that the use of the applicable prospectus may be
resumed: 
  
 (i) any request by the SEC or any other
Governmental Body for amendments or supplements to such Resale Registration Statement and/or Piggyback Registration Statement or the prospectus relating thereto or for additional information; 
  
 (ii) the issuance by the SEC of any stop order suspending the effectiveness
of such Resale Registration Statement and/or Piggyback Registration Statement or the initiation of any proceedings for that purpose; 
  
 (iii) the receipt by Verticalnet of any written notification with respect to the suspension of the qualification or exemption from qualification of the
Merger Shares for sale in any jurisdiction, or the initiation or threatening in writing of any proceeding, for such purpose; or 
  
 (iv) the occurrence of any event that makes any statement made in such Resale Registration Statement and/or Piggyback Registration Statement or the
prospectus relating thereto or any document incorporated or deemed to be incorporated therein by reference untrue in any material respect or that requires any revisions to such Resale Registration Statement and/or Piggyback Registration Statement,
prospectus or other documents so that, in the case of such Resale Registration Statement and/or Piggyback Registration Statement or the prospectus relating thereto, 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 light of the circumstances under which they were made, not misleading; and 
  

 5 

 (d) such Stockholder shall furnish to Verticalnet information regarding such Stockholder and the
distribution of the Merger Shares as is required by Law to be disclosed in the Resale Registration Statement and/or any Piggyback Registration Statement and is different from the information concerning such Stockholder and the plan distribution
contained in such Resale Registration Statement and/or Piggyback Registration Statement. 
  
 8. Indemnification. 
  
 (a) In connection with the Resale Registration Statement and any Piggyback Registration Statement, as applicable, to the extent permitted by Law: 
  
 (i) Verticalnet will indemnify and hold harmless each Stockholder, any underwriter (as defined in the Securities Act) for such Stockholder and each
Person, if any, who controls such Stockholder or underwriter within the meaning of the Securities Act or the Exchange Act, against any losses, claims, damages, or liabilities (joint or several) to which they may become subject under the Securities
Act, the Exchange Act or other federal or state Law, insofar as such losses, claims, damages, or liabilities (or actions in respect thereof) arise out of or are based upon any of the following statements, omissions or violations: (A) any untrue
statement or alleged untrue statement of a material fact contained in the Resale Registration Statement or any Piggyback Registration Statement, including any preliminary prospectus or final prospectus contained therein or any amendments or
supplements thereto, (B) the omission or alleged omission to state therein a material fact required to be stated therein, or necessary to make the statements contained in the Resale Registration Statement or any Piggyback Registration Statement not
misleading or (C) any violation or alleged violation by Verticalnet of the Securities Act, the Exchange Act or any state securities Law; and Verticalnet will pay to each such Stockholder, underwriter or controlling person, as incurred, any legal or
other expenses reasonably incurred by them in connection with investigating or defending any such loss, claim, damage, liability, or action; provided, however, that the indemnity agreement contained in this subsection 8(a)(i) shall not
apply to: (w) amounts paid in settlement of any such loss, claim, damage, liability, or action if such settlement is effected without the consent of Verticalnet (which consent shall not be unreasonably withheld), (x) any such loss, claim, damage,
liability, or action to the extent that it arises out of or is based upon information contained in the Resale Registration Statement or any Piggyback Registration Statement in reliance upon and in conformity with written information furnished
expressly for use in connection with such Resale Registration Statement or Piggyback Registration Statement by such Stockholder, underwriter or controlling person, (y) any such loss, claim, damage, liability or action to the extent that it arises
out of or is based upon (i) such Stockholder’s or underwriter’s failure to deliver a copy of a prospectus included in the Resale Registration Statement or any Piggyback Registration Statement, or any amendments or supplements thereto, or
(ii) an untrue statement or alleged untrue statement or omission in the Resale Registration Statement or any Piggyback Registration Statement or any prospectus that is corrected in any subsequent amendment or supplement to such Resale Registration
Statement or Piggyback Registration Statement or prospectus that was delivered to such Stockholder a reasonable time before the pertinent sale or sales by such Stockholder and which Verticalnet advised such Stockholder in writing must be used in
lieu of any prior prospectus or amendment or supplement thereto that had previously been provided to such Stockholder or (z) any such loss, claim, damage, liability or action to the extent that it arises out of or is based upon, in whole or part,
such Stockholder’s or underwriter’s violation or alleged violation of the Securities Act, the Exchange Act or any state securities Law; and 
  
 (ii) each Stockholder will indemnify and hold harmless Verticalnet, each of its directors, each of its officers who has signed the Resale Registration
Statement or any 
  

 6 

 Piggyback Registration Statement, each Person, if any, who controls Verticalnet within the meaning of the Securities Act,
any underwriter, and any controlling person of any such underwriter, against any losses, claims, damages, or liabilities (joint or several) to which any of the foregoing persons may become subject, under the Securities Act, the Exchange Act or other
federal or state Law, insofar as such losses, claims, damages, or liabilities (or actions in respect thereto) arise out of or are based upon (x) information contained in the Resale Registration Statement or any Piggyback Registration Statement in
conformity with written information furnished by such Stockholder expressly for use in connection with such Resale Registration Statement or Piggyback Registration Statement, (y) such Stockholder’s failure to deliver a copy of a prospectus
included in the Resale Registration Statement or any Piggyback Registration Statement, or any amendments or supplements thereto, provided that such failure is not as a result of Verticlanet’s failure to fulfill its obligations under Section
5(b) hereof or, (z) in whole or part, such Stockholder’s violation or alleged violation of the Securities Act, the Exchange Act or any state securities Law; and each such Stockholder will pay, as incurred, any legal or other expenses reasonably
incurred by any person intended to be indemnified pursuant to this subsection 8(a)(ii), in connection with investigating or defending any such loss, claim, damage, liability, or action; provided, however, that the indemnity agreement
contained in this subsection 8(a)(ii) shall not apply to amounts paid in settlement of any such loss, claim, damage, liability or action if such settlement is effected without the consent of such Stockholder, which consent shall not be unreasonably
withheld. In no event shall the liability of any individual Stockholder under this subsection 8(a) exceed the gross sales proceeds received by such Stockholder from the sale of the Merger Shares pursuant to the Resale Registration Statement and/or
any Piggyback Registration Statement. 
  
 (b) Promptly after
receipt by an indemnified party under this Section 8 of notice of the commencement of any action (including any governmental action), such indemnified party will, if a claim in respect thereof is to be made against any indemnifying party under this
Section 8, deliver to the indemnifying party a written notice of the commencement thereof and the indemnifying party shall have the right to participate in, and, to the extent the indemnifying party so desires, jointly with any other indemnifying
party similarly noticed, to assume the defense thereof with counsel mutually satisfactory to the parties; provided, however, that an indemnified party (together with all other indemnified parties which may be represented without
conflict by one counsel) shall have the right to retain one separate counsel, with the fees and expenses to be paid by the indemnifying party, if representation of such indemnified party by the counsel retained by the indemnifying party would be
inappropriate due to actual or potential differing interests between such indemnified party and any other party represented by such counsel in such proceeding. The failure to deliver written notice to the indemnifying party within a reasonable time
of the commencement of any such action, if materially prejudicial to its ability to defend such action, shall relieve such indemnifying party of any liability to the indemnified party under this Section 8, but the omission so to deliver written
notice to the indemnifying party will not relieve it of any liability that it may have to any indemnified party otherwise than under this Section 8. 
  
 (c) If the indemnification provided for in this Section 8 is held by a court of competent jurisdiction to be unavailable to an indemnified party with
respect to any loss, liability, claim, damage, or expense referred to therein, then the indemnifying party, in lieu of indemnifying such indemnified party hereunder, shall contribute to the amount paid or payable by such indemnified party as a
result of such loss, liability, claim, damage, or expense in such proportion as is appropriate to reflect the relative fault of the indemnifying party on the one hand and of the indemnified party on the other in connection with the statements or
omissions that resulted in such loss, liability, claim, damage, or expense as well as any other relevant equitable 
  

 7 

 considerations. The relative fault of the indemnifying party and of the indemnified party shall be determined by
reference to, among other things, whether the untrue or alleged untrue statement of a material fact or the omission to state a material fact relates to information supplied by the indemnifying party or by the indemnified party and the parties’
relative intent, knowledge, access to information, and opportunity to correct or prevent such statement or omission. In no event shall any contribution by a Stockholder under this subsection 8(c) exceed the sales proceeds, net of any commissions,
received by such Stockholder upon the sale of the Merger Shares pursuant to the Resale Registration Statement and/or any Piggyback Registration Statement. In no event shall a person or entity guilty of fraudulent misrepresentation (within the
meaning of Section 11(f) of the Securities Act) be entitled to contribution from any person or entity who was not guilty of fraudulent misrepresentation. 
  
 (d) The obligations of Verticalnet and the Stockholders under this Section 8 shall survive the completion of the offering of Merger Shares under the
Resale Registration Statement and/or any Piggyback Registration Statement. 
  
 9. Transfers Pursuant to Rule 144 or Resale or Piggyback Registration Statements. Upon a Stockholder’s compliance with this Agreement and the applicable provisions of Rule 144 or prospectus delivery
requirements under the Securities Act, as the case may be, Verticalnet will take such action as may be required (including, soliciting an appropriate opinion from legal counsel to issue an appropriate opinion) to cause its transfer agent to
effectuate any transfer of Merger Shares properly requested by such Stockholder, in accordance with the terms and conditions of Rule 144 or any sale under the Resale Registration Statement or any Piggyback Registration Statement. 
  
 10. Compliance with Verticalnet Insider Trading Policies. All sales of
Merger Shares held by a Stockholder who is an employee of Verticalnet or any subsidiary shall be made in accordance with Verticalnet’s policies against insider trading and the misuse of material non-public information, including any blackout
periods set forth therein. 
  
 11. No Assignment. The
rights granted pursuant to this Agreement may not be transferred or assigned by any Stockholder. 
  
 12. Amendments and Waivers. The provisions of this Agreement may be modified or amended at any time and from time to time only by an agreement or
consent in writing executed by Verticalnet and the Stockholders’ Representative. No provision of this Agreement may be waived except in a written instrument signed by the party against whom enforcement of such waiver is sought. No waiver of any
default with respect to any provision, condition or requirement of this Agreement shall be deemed to be a continuing waiver in the future or a waiver of any other provision, condition or requirement hereof, nor shall any delay or omission of any
party to exercise any right hereunder in any manner impair the exercise of any such right accruing to it thereafter. 
  
 13. Notices. All notices, requests, consents and other communications required to be given pursuant to this Agreement shall be in writing and shall
be given by personal delivery, facsimile with confirmation of receipt or by certified or registered mail, postage prepaid, return receipt requested. Notices shall be deemed effective when personally delivered or so received by facsimile or three
days after being so mailed, as the case may be, to the parties at the following respective addresses or at such other address of which either party shall notify the other in accordance with this Section 13: 
  

 8 

			
	 Verticalnet:
	 	 Verticalnet, Inc.
 400 Chester Field
Parkway
 Malvern, PA 19355
 Attention: Legal
 (facsimile: 610.240.9470)

		
	 With a required copy to:
	 	 Morgan, Lewis & Bockius LLP
 1701 Market
Street
 Philadelphia, PA 19103
 Attention: James W. McKenzie,
Jr., Esq.
 (facsimile: 877.432.9652)

		
	 Any Stockholder:
	 	 To the address set forth on the records of Verticalnet or such other
 address as may be forwarded by a Stockholder in writing.

  
 14. Entire
Agreement; Governing Law. This Agreement shall be governed by and construed, interpreted and enforced in accordance with the laws of the Commonwealth of Pennsylvania, without giving effect to any of the conflicts of laws provisions thereof that
would require the application of the substantive laws of any other jurisdiction. EACH PARTY HEREBY IRREVOCABLY WAIVES ALL RIGHT TO TRIAL BY JURY IN ANY ACTION, PROCEEDING OR COUNTERCLAIM (WHETHER BASED ON CONTRACT, TORT OR OTHERWISE) ARISING OUT OF
OR RELATING TO THIS AGREEMENT OR THE ACTIONS OF SUCH PARTY IN THE NEGOTIATION, ADMINISTRATION, PERFORMANCE AND ENFORCEMENT HEREOF. This Agreement, together with the Transaction Documents, embodies the entire agreement and understanding between the
parties, and supersedes all prior agreements and understandings relating to the subject matter hereof. 
  
 15. Remedies. In the event of a breach by Verticalnet or by a Stockholder, of any of their respective obligations under this Agreement, such
Stockholder or Verticalnet, 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.
Verticalnet and each Stockholder agrees 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. Each of the parties shall be entitled to seek an injunction or injunctions to prevent breaches of this Agreement and to
enforce specifically the terms and provisions hereof in any court having jurisdiction, this being in addition to any other remedy to which they are entitled at law or in equity. In any action at law or suit in equity to enforce this Agreement or the
rights of any of the parties hereunder, the prevailing party in such action or suit shall be entitled to receive a reasonable sum for its attorneys’ fees and all other reasonable costs and expenses incurred in such action or suit, if in such
action or suit the principal claim or defense of the non-prevailing party is held to be without merit because it was not reasonably supported by Laws or material and relevant facts. 
  
 16. Severability. If one or more provisions of this Agreement are held to be unenforceable under applicable Law, the
portion of such provision that is found to be unenforceable shall be excluded from this Agreement and the balance of the Agreement shall be interpreted as if such provision were so excluded and shall be enforceable in accordance with its terms.

  

 9 

 17. Counterparts. This Agreement may be executed in any number of counterparts and any party may
execute any such counterpart, each of which when executed and delivered (which deliveries may be made by facsimile) shall be deemed to be an original, and all of which counterparts taken together shall constitute but one and the same instrument. It
shall not be necessary when making proof of this Agreement to produce or account for more than one such counterpart. 
  
 18. Interpretation. Unless the context of this Agreement clearly requires otherwise, (a) references to the plural include the singular, the
singular the plural, the part the whole, (b) references to any gender include all genders, (c) “including” has the inclusive meaning frequently identified with the phrase “but not limited to” and (d) references to
“hereunder” or “herein” relate to this Agreement. The section and other headings contained in this Agreement are for reference purposes only and shall not control or affect the construction of this Agreement or the
interpretation thereof in any respect. Section references are to this Agreement unless otherwise specified. 
  
 {Signature Page to Follow} 
  

 10 

 IN WITNESS WHEREOF, this Registration Rights Agreement has been executed as of the date first above
written. 
  

			
	VERTICALNET, INC.
		
	 By:
	 	 /s/ Gene S. Godick

	 Name:
	 	 Gene S. Godick

	 Title:
	 	 Executive Vice President and Chief

	 	 	 Financial Officer

	
	CIBC WMC, INC.
		
	 By:
	 	 /s/ Christopher Payne

	 Name:
	 	 Christopher Payne

	 Title:
	 	 Managing Director

	
	CIBC CAPITAL PARTNERS TECHNOLOGY VENTURES, LLC
		
	 By:
	 	 /s/ Teddy Rosenberg

	 Name:
	 	 Teddy Rosenberg

	 Title:
	 	 Managing Director

	
	FBR/TVP II EMPLOYEE FUND, L.P.
	FBR/TVP II EMPLOYEE FUND II, L.P.
	 FBR TECHNOLOGY VENTURE PARTNERS
 II, L.P.

	 FBR TECHNOLOGY VENTURE PARTNERS
 II
(QP) L.P.

		
	 By:
	 	FBR INVESTMENT MANAGEMENT, INC.,
	 	 	 the General Partner of the above partnerships

		
	 By:
	 	 /s/ Neal J. Wilson

	 Name:
	 	 Neal J. Wilson

	 Title:
	 	 Managing Director

	
	SYNDICATED COMMUNICATIONS, INC.
		
	 By:
	 	 /s/ Herbert P. Wilkins, Sr.

	 Name:
	 	 Herbert P. Wilkins, Sr.

	 Title:
	 	 Chairman

			
	SYNDICATED COMMUNICATIONS VENTURE PARTNERS IV
		
	 By:
	 	 /s/ Herbert P. Wilkins, Sr.

	 Name:
	 	 Herbert P. Wilkins, Sr.

	 Title:
	 	 Managing General Partner

	
	CARTHAGE B2E, LLC
		
	 By:
	 	 /s/ A. Anthony Gee

	 Name:
	 	 A. Anthony Gee

	 Title:
	 	 Managing Member

	
	CARTHAGE VENTURE FUND LP
		
	 By:
	 	 /s/ A. Anthony Gee

	 Name:
	 	 A. Anthony Gee

	 Title:
	 	 General Partner

	
	CARTHAGE EPG, LLC
		
	 By:
	 	 /s/ A. Anthony Gee

	 Name:
	 	 A. Anthony Gee

	 Title:
	 	 Member

	
	HALO-B2E MARKETS, LLC
		
	 By:
	 	 /s/ Darryl E. Wash

	 Name:
	 	 Darryl E. Wash

	 Title:
	 	 Managing Member

	
	ASCEND VENTURES, L.P.
		
	 By:
	 	Ascend Venture Group, LLC,
	 	 	its General Partner
		
	 By:
	 	 /s/ Darryl E. Wash

	 Name:
	 	 Darryl E. Wash

	 Title:
	 	 Managing Partner

			
	 /s/ Orville A. Bailey

	 ORVILLE A. BAILEY

	
	 /s/ Richard M. Waugh

	 RICHARD M. WAUGH

	
	JENERATIONS, LLC
		
	 By:
	 	  

	 Name:
	 	 
	 Title:
	 	 
	
	 /s/ George Csefai

	 GEORGE CSEFAI

	
	 /s/ Paul Gorrell

	 PAUL GORRELL

	
	 /s/ Anthony Abrahams

	 ANTHONY ABRAHAMS

	
	 /s/ Alfred D. Sharp

	 ALFRED D. SHARP

	
	 /s/ Stephen Socolof

	 STEPHEN SOCOLOF

	
	 /s/ William Van Etten

	 WILLIAM VAN ETTEN

	
	BBC GROUP, LLC
		
	 By:
	 	 /s/ Anthony Abrahams

	 Name:
	 	 Anthony Abrahams

	 Title:
	 	 Managing Member,

	 	 	 BBC Management LLC

			
	HOGAN & HARTSON LLP
		
	 By:
	 	 /s/ Prentiss E. Feagles

	 Name:
	 	Prentiss E. Feagles
	 Title:
	 	Managing Partner
	
	 /s/ Jean M. Carroll

	 JEAN M. CARROLL

	
	

	 MICHAEL PARK

	
	 /s/ Mark David Russell

	 MARK DAVID RUSSELL

	
	 /s/ Michael J. Bajit

	 MICHAEL J. BAJIT

	
	CONCORD VENTURES II (CAYMAN), L.P.
		
	 By:
	 	 /s/ Authorized Signatory

	 Name:
	 	 
	 Title:
	 	 
	
	CONCORD VENTURE II (ISRAEL), L.P.
	C/O CONCORD II INVESTMENT PARTNERS LTD.
		
	 By:
	 	 /s/ Authorized Signatory

	 Name:
	 	 
	 Title:
	 	 
	
	CONCORD VENTURE ADVISORS II (CAYMAN), L.P.
		
	 By:
	 	 /s/ Authorized Signatory

	 Name:
	 	 
	 Title:
	 	 

			
	CONCORD VENTURE ADVISORS II-A (ISRAEL), L.P.
		
	 By:
	 	 /s/ Authorized Signatory

	 Name:
	 	 
	 Title:
	 	 
	
	

	 TONY ABRAHAMS

	
	ADAPTIVE TRADE, INC.
		
	 By:
	 	 /s/ Karl Salnoske

	 Name:
	 	 Karl Salnoske

	 Title:
	 	 

 EXHIBIT A 
  

Plan of Distribution 
  
 The selling shareholders of our common stock registered under this registration statement and any of their pledgees, assignees and successors-in-interest
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; 

  

	 	•	settlement of short sales; 

  

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

  

	 	•	a combination of any such methods of sale; 

  

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

  

	 	•	any other method permitted pursuant to applicable law. 

  
 The selling shareholders may also sell shares under Rule 144 under the Securities Act, if available, rather than under this prospectus. 
  
 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. 
  
 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 and any broker-dealers or agents that are involved in selling the shares 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 purchased by them may be deemed to
be underwriting commissions or discounts under the Securities Act. Each selling shareholder has informed us that it does not have any agreement or understanding, directly or indirectly, with any person to distribute the shares of common stock
registered hereunder.

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