Document:

Registration Rights Agreement, dated as of November 24, 2004

 Exhibit 4.2 
  

REGISTRATION RIGHTS AGREEMENT 
  
 This Registration Rights Agreement (this “Agreement”) is made and entered into as of November 24, 2004, by and among Verticalnet, Inc., a
Pennsylvania corporation (the “Company”), and each of the purchasers signatory hereto (each such purchaser, a “Purchaser” and collectively, the “Purchasers”). 
  
 This Agreement is made pursuant to the Securities 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 that are defined in the Purchase Agreement shall have the meanings given
such terms in the Purchase Agreement. As used in this Agreement, the following terms shall have the following meanings: 
  
 “Advice” shall have the meaning set forth in Section 6(d). 
  
 “Effectiveness Date” means, with respect to the Registration Statements required to be
filed hereunder, the earlier of (a) the day 90 calendar days following the date of the Purchase Agreement and (b) or the fifth Trading Day following the date, but no earlier than January 10, 2005, on which the Company is notified by the Commission
that such Registration Statement will not be reviewed or is no longer subject to further review and comments; provided, however, that if a Holder fails to comply with the provisions of Section 3(k), then, as to such Holder only, the
Effectiveness Date with respect to such Holder’s Registrable Securities only shall be extended until 90 days following the date of receipt by the Company of such required information. 
  
 “Effectiveness Period” shall have the
meaning set forth in Section 2(a). 
  
 “Event” shall have the meaning set forth in Section 2(b). 
  
 “Event Date” shall have the meaning set forth in Section 2(b). 
  
 “Filing Date” means, with respect to the
Registration Statements required to be filed hereunder, the day 45 calendar days following the date of the Purchase Agreement; provided, however, that if a Holder fails to comply with the provisions of Section 3(k), then the Filing
Date with respect to such Holder’s Registrable Securities only shall be extended until 45 calendar days following the date of receipt by the Company of such required information. 
  
 “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 5(c). 
  
 “Indemnifying Party” shall have the meaning set forth in Section 5(c). 
  

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 “Losses” shall have the meaning set forth in Section 5(a). 

 
 “Proceeding” means an action, claim,
suit, investigation or proceeding (including, without limitation, an investigation or partial proceeding, such as a deposition). 
  
 “Prospectus” means the prospectus included in the applicable 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, with respect to the terms of the offering of any portion of the Registrable Securities covered by such Registration Statement, and all other amendments and supplements to such Prospectus, including post-effective amendments, and all
material incorporated by reference or deemed to be incorporated by reference in such Prospectus. 
  
 “Registrable Securities” means all of the Shares and the Warrant Shares, together with any shares of Common Stock issued
or issuable upon any stock split, dividend or other distribution, recapitalization or similar event with respect to the foregoing. 
  
 “Registration Statement” means a registration statement required to be filed hereunder, 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 or deemed to be incorporated by reference in such
registration statement. 
  
 “Rule
415” means Rule 415 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 purpose and
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 purpose and
effect as such Rule. 
  
 “Shares” means the shares of Common Stock to be issued pursuant to the Purchase Agreement. 
  
 “Warrant Shares” means the shares of Common Stock issuable upon exercise of the Warrants purchased pursuant to the
Purchase Agreement. 
  
 2. Registration. 
  
 (a) On or prior to the applicable Filing Date, the Company
shall prepare and file with the Commission a Registration Statement covering the resale of all of the Registrable Securities not yet registered that are held by Holders that have complied with the provisions of Section 3(k) prior to such date for an
offering to be made on a continuous basis pursuant to Rule 415. Such Registration Statement required hereunder 
  

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 shall be on Form S-3 (except if the Company is not then eligible to register for resale the Registrable
Securities on Form S-3, in which case such Registration Statement shall be on another appropriate form herewith). The Registration Statements required hereunder shall contain (except if otherwise directed by Holders owning a majority of the
Registrable Securities outstanding at such time) substantially the “Plan of Distribution” attached hereto as Annex A. Subject to the terms of this Agreement, the Company shall use its best efforts to cause such Registration
Statement to be declared effective under the Securities Act as promptly as possible after the filing thereof, but in any event not later than the applicable Effectiveness Date, and shall use its best efforts to keep such Registration Statement
continuously effective under the Securities Act until the date when all Registrable Securities covered by such Registration Statement have been sold or may be sold without volume restrictions pursuant to Rule 144(k) as determined by the counsel to
the Company pursuant to a written opinion letter to such effect, addressed and acceptable to the Company’s transfer agent and the affected Holders (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 3(k); 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; provided further that this provision does not
otherwise waive the Company’s obligation to register such Registrable Securities pursuant to the terms hereunder upon such Holder providing the Company with the required information. 
  
 (b) If: (i) a Registration Statement is not filed on or
prior to the applicable Filing Date (if the Company files a Registration Statement without affording the Holder or Holders referenced in such Registration Statement the opportunity to review and comment on the same as required by Section 3(a), the
Company shall not be deemed to have satisfied this clause (i)), or (ii) the Company fails to file with the Commission a request for acceleration in accordance with Rule 461 promulgated under the Securities Act, within no more than five (5) Trading
Days of the date that the Company is notified (orally or in writing, whichever is earlier) by the Commission that a Registration Statement will not be “reviewed,” or is not subject to further review, or (iii) prior to the date when a
Registration Statement is first declared effective by the Commission, the Company fails to file a pre-effective amendment and otherwise respond in writing to comments made by the Commission in respect of such Registration Statement within 30
calendar days after the receipt of comments by or notice from the Commission that such amendment is required in order for such Registration Statement to be declared effective, (which period shall be extended to January 10, 2005, if such 30th
calendar day would be a date prior to January 10, 2005) or (iv) a Registration Statement filed or required to be filed hereunder is not declared effective by the Commission on or before the applicable Effectiveness Date, or (v) after a Registration
Statement is first declared effective by the Commission, it ceases for any reason to remain continuously effective as to all Shares for which it is required to be effective, or the Holders are not permitted to utilize a Prospectus therein to resell
such Shares, for in any such case 15 consecutive Trading Days but no more than an aggregate of 25 Trading Days during any 12 month period (which need not be consecutive Trading Days) provided that any days during which a 
  

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 Registration Statement ceases to be effective due to the filing of a post-effective amendment thereto by
the Company at the request of the Holders in order to amend the Plan of Distribution (as provided for in Section 2(a)) shall not be counted towards such 15 or 25 Trading Day periods provided the Company uses commercially reasonable efforts to cause
such post-effective amendment to be declared effective (any such failure or breach being referred to as an “Event,” and for purposes of clause (i) or (iv) the date on which such Event occurs, or for purposes of clause (ii) the date
on which such 5 Trading Day period is exceeded, or for purposes of clause (iii) the date which such 30 calendar days is exceeded, or for purposes of clause (v) the date on which such 15 or 25 Trading Day period, as applicable, is exceeded being
referred to as “Event Date”), then in addition to any other rights the Holders may have hereunder or under applicable law: (x) on each such Event Date the Company shall pay to each Holder an amount in cash, as partial liquidated
damages and not as a penalty, equal to 1.0% of the aggregate purchase price paid by such Holder pursuant to the Purchase Agreement for any Shares then held by such Holder; and (y) on each monthly anniversary of each such Event Date (if the
applicable Event shall not have been cured by such date) until the applicable Event is cured, the Company shall pay to each Holder an amount in cash, as partial liquidated damages and not as a penalty, equal to 2.0% of the aggregate purchase price
paid by such Holder pursuant to the Purchase Agreement for any Shares then held by such Holder. If the Company fails to pay any liquidated damages pursuant to this Section in full within seven business days after the date payable, the Company will
pay interest thereon at a rate of 12% per annum (or such lesser maximum amount that is permitted to be paid by applicable law) to the Holder, accruing daily from the date such liquidated damages are due until such amounts, plus all such interest
thereon, are paid in full. The liquidated damages pursuant to the terms hereof shall apply on a daily pro-rata basis for any portion of a month prior to the cure of an Event. Notwithstanding anything herein to the contrary, the Company agrees and
acknowledges that any extensions to the Filing Date or Effectiveness Date on account of a Holder failing to timely comply with Section 3(k) relate solely to that Holder and in no way effect the Filing Date and Effectiveness Date under this Agreement
as they relate to any other Holder. 
  
 3. Registration
Procedures 
  
 In connection with the Company’s
registration obligations hereunder, the Company shall: 
  
 (a) Not less than five Trading Days prior to the filing of a Registration Statement or any related Prospectus or any amendment or supplement thereto, the Company shall, (i) furnish to the Holders owning Registrable Securities registered
under such Registration Statement copies of all such documents proposed to be filed (including documents incorporated or deemed incorporated by reference to the extent requested by such Person) which documents 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, in the reasonable opinion of respective counsel to conduct a reasonable investigation within
the meaning of the Securities Act. The Company shall not file any such Registration Statement or any such Prospectus or any amendments or supplements thereto to which the Holders of a majority of the 
  

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 Registrable Securities registered thereunder shall reasonably object in good faith, provided that the
Company is notified of such objection in writing no later than five Trading Days after such Holders have been so furnished copies of such documents. 
  
 (b) (i) Prepare and file with the Commission such amendments, including post-effective amendments, to a Registration Statement and a
Prospectus used in connection therewith as may be necessary to keep such Registration Statement continuously effective as to the applicable Registrable Securities for the applicable Effectiveness Period and prepare and file with the Commission such
additional Registration Statements in order to register for resale 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; (iii) respond as promptly as reasonably possible to any comments received from the Commission with respect to such Registration Statement or any amendment thereto and, as promptly as
reasonably possible, upon request, provide the Holders true and complete copies of all correspondence from and to the Commission relating to such Registration Statement; and (iv) comply in all material respects during the applicable Effectiveness
Period with the provisions of the Securities Act and the Exchange Act with respect to the disposition of all Registrable Securities covered by such Registration Statement during the applicable period in accordance with the Holders’ intended
methods of disposition set forth in such 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 reasonably possible (i)(A) when a Prospectus or any Prospectus
supplement or post-effective amendment to a Registration Statement is proposed to be filed; (B) when the Commission notifies the Company whether there will be a “review” of a Registration Statement and whenever the Commission comments in
writing on a Registration Statement (the Company shall upon request provide true and complete copies thereof and all written responses thereto to each of the Holders); and (C) with respect to a Registration Statement or any post-effective amendment,
when the same has become effective; (ii) of any request by the Commission or any other Federal or state governmental authority during the period of effectiveness of a Registration Statement for amendments or supplements to such Registration
Statement or Prospectus or for additional information; (iii) of the issuance by the Commission or any other federal or state governmental authority of any stop order suspending the effectiveness of a Registration Statement covering any or all of
such 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 of which the Company has knowledge as a result of which a Prospectus, as then in effect, contains
any untrue statement of a material fact or omits to state a 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. 
  

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 (d) Use commercially reasonable efforts to avoid the issuance of, or, if issued, obtain
the withdrawal of (i) any order suspending the effectiveness of a Registration Statement, or (ii) any suspension of the qualification (or exemption from qualification) of any of the Registrable Securities for sale in any jurisdiction, as promptly as
reasonably practicable. 
  
 (e) Furnish to each
Holder, without charge, at least one conformed copy of each Registration Statement registering Registrable Securities held by such Holder and each amendment thereto, including financial statements and schedules, all documents incorporated or deemed
to be incorporated therein by reference to the extent requested in writing by such Person, and all exhibits to the extent requested by such Person in writing (including those previously furnished or incorporated by reference) promptly after the
filing of such documents with the Commission. 
  
 (f) 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 in connection with
resales by the Holder of Registrable Securities. Subject to the terms of this Agreement, 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, except after the giving of any notice pursuant to Section 3(c). 
  
 (g) Prior to any resale of Registrable Securities by a Holder, 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 the Registration or qualification) of such Registrable Securities for the resale by the Holder under the securities or
Blue Sky laws of such jurisdictions within the United States as any Holder reasonably 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 reasonably necessary to enable the disposition in such jurisdictions of the Registrable Securities covered by the applicable Registration Statement; provided, that the Company shall not be required to qualify generally to do
business in any jurisdiction where it is not then so qualified, subject the Company to any material tax in any such jurisdiction where it is not then so subject or file a general consent to service of process in any such jurisdiction. 
  
 (h) If requested in writing by the Holders, cooperate with
the Holders to facilitate the timely preparation and delivery of certificates representing Registrable Securities to be delivered to a transferee pursuant to the applicable Registration Statement, which certificates shall be free, to the extent
permitted by the Purchase Agreement, of all restrictive legends, and to enable such Registrable Securities to be in such denominations and registered in such names as any such Holders may request. 
  
 (i) Upon the occurrence of any event contemplated by Section
3(c)(v), as promptly as reasonably possible, prepare a supplement or amendment, including a post-effective amendment, to the applicable Registration Statement or a supplement to 
  

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 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 such Registration Statement nor the Prospectus included therein 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 light of the circumstances under which they were made, not misleading. If the Company notifies the Holders in accordance with clauses (ii) through (v) of Section 3(c) above to suspend the use
of the use of any Prospectus until the requisite changes to such Prospectus have been made, then the Holders shall suspend use of such Prospectus. The Company will use its commercially reasonable efforts to ensure that the use of a Prospectus may be
resumed as promptly as is practicable. The Company shall be entitled to exercise its right under this Section 3(i) to suspend the availability of a Registration Statement and the applicable Prospectus, subject to the payment of liquidated damages
pursuant to Section 2(b), for a period not to exceed 60 Trading Days (which need not be consecutive days) in any 12 month period. 
  
 (j) Comply in all material respects with all applicable rules and regulations of the Commission. 
  
 (k) The Company may require each Holder, upon three Trading
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 the person that has voting and dispositive control over such Shares. 

 
 4. Registration Expenses. Except as otherwise provided for herein,
all fees and expenses incident to the performance of or compliance with this Agreement by the Company shall be borne by the Company whether or not any Registrable Securities are sold pursuant to a Registration Statement. 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 Trading Market on which the
Common Stock is then listed for trading, and (B) in compliance with applicable 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 reasonably requested by the holders of a majority of the Registrable Securities included in a Registration Statement), (iii) messenger, telephone and delivery expenses, (iv) reasonable fees and
disbursements of counsel for the Company, (v) Securities Act liability insurance, if the Company so desires such insurance, and (vi) fees and expenses of all other Persons retained by the Company in connection with the consummation of the
transactions contemplated by this Agreement. 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 and the fees and expenses incurred in connection with the listing of the Registrable Securities on any
securities exchange as required hereunder. In no event shall the Company be responsible for any broker or similar commissions or, except to the extent provided for in the Transaction Documents, any legal fees or other costs of the Holders.

  

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 5. 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 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, reasonable
attorneys’ fees) and expenses (collectively, “Losses”), as incurred, arising out of or relating to any untrue statement of a material fact contained in a Registration Statement (at the time of its effectiveness), any Prospectus
or any form of prospectus or in any amendment or supplement thereto or in any preliminary prospectus (each as of its date), or arising out of or relating to any omission of a 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, except to the extent, but only to the extent, that (i) such untrue statements or omissions are based solely upon information regarding such Holder
furnished in writing to the Company by or on behalf of such Holder expressly for use therein, or to the extent that such information relates to such Holder or such Holder’s proposed method of distribution of Registrable Securities and was
reviewed and expressly approved in writing by such Holder expressly for use in such Registration Statement, such Prospectus or such form of Prospectus or in any amendment or supplement thereto (it being understood that the Holder has approved
Annex A hereto for this purpose) or (ii) in the case of an occurrence of an event of the type specified in Section 3(c)(ii)-(v), the use by such Holder of an outdated or defective Prospectus after the Company has notified such Holder in
writing that such Prospectus is outdated or defective and prior to the receipt by such Holder of the Advice contemplated in Section 6(d). 
  
 (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 or employees of such controlling
Persons, to the fullest extent permitted by applicable law, from and against all Losses, as incurred, within ten Trading Days of written notice thereof to the Indemnifying Party, to the extent arising 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 a 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 of a material fact required to be stated therein or necessary to make the statements therein not misleading (i) to the extent, but only to the extent,
that such untrue statement or omission is contained in any information so furnished in writing by or on behalf of such Holder to the Company specifically for inclusion in such Registration Statement or such Prospectus or (ii) to the extent that (1)
such untrue statements or omissions are based solely upon information regarding such Holder furnished in writing to the Company by or on behalf of such Holder expressly for use therein, or to the extent 
  

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 that such information relates to such Holder or such Holder’s proposed method of distribution of
Registrable Securities and was reviewed and expressly approved in writing by such Holder expressly for use in such Registration Statement (it being understood that the Holder has approved Annex A hereto for this purpose), such Prospectus or
such form of Prospectus or in any amendment or supplement thereto or (2) in the case of an occurrence of an event of the type specified in Section 3(c)(ii)-(v), the use by such Holder of an outdated or defective Prospectus after the Company has
notified such Holder in writing that such Prospectus is outdated or defective and prior to the receipt by such Holder of the Advice contemplated in Section 6(d). In no event shall the liability of any selling Holder hereunder be greater in amount
than the dollar amount of the net proceeds received by such Holder upon the sale of the Registrable Securities giving rise to such indemnification obligation. 
  

(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 shall promptly 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 materially prejudiced the Indemnifying
Party’s ability to defend such action. 
  
 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; (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 reasonably believe that a material
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 the reasonable fees and expenses of one separate counsel shall be at the expense of the Indemnifying Party). The
Indemnifying Party shall not be liable for any settlement of any such Proceeding affected without its written consent, which consent shall not be unreasonably withheld. 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. 
  

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 (d) Contribution. If a claim for indemnification under Section 5(a) or 5(b) is
unavailable to an Indemnified Party (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 of each of the Indemnifying Party and the Indemnified Party 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 statement of a material fact 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 5(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.
Notwithstanding the provisions of this Section 5(d), no Holder shall be required to contribute, in the aggregate, any amount in excess of the amount by which the proceeds actually received by such Holder from the sale of the Registrable Securities
subject to the Proceeding exceeds the amount of any damages that such Holder has otherwise been required to pay by reason of such untrue or alleged untrue statement or omission or alleged omission, except in the case of fraud by such Holder.

  
 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. 
  
 6. 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. 
  

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 (b) No Piggyback on Registrations. Except for the former holders of preferred
stock of B2eMarkets, Inc. (the “B2e Stockholders”) to whom or which registration rights were granted pursuant to the Registration Rights Agreement dated July 16, 2004, among the Company and the B2e Stockholders (the “B2e
Registration Rights Agreement”), neither the Company nor any of its security holders (other than the Holders in such capacity pursuant hereto) may include securities of the Company in a Registration Statement other than the Registrable
Securities. The Company shall not file any other registration statement until after the Effective Date except for registration statements on Form S-3 pursuant to the B2e Registration Rights Agreement or registration statements on Form S-8 relating
to equity securities issuable in connection with the Company’s stock option or other employee benefit plan. 
  
 (c) Compliance. Each Holder covenants and agrees that it will comply with the prospectus delivery requirements of the Securities
Act as applicable to it in connection with sales of Registrable Securities pursuant to a Registration Statement. 
  
 (d) Discontinued Disposition. 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 3(c), such Holder will forthwith discontinue disposition of such Registrable Securities under any Registration Statement until such Holder’s receipt of the copies
of the supplemented Prospectus and/or amended Registration Statement or until it is advised in writing (the “Advice”) 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. The Company will use its commercially reasonable efforts to ensure that the use of such
Prospectus may be resumed as promptly as it practicable. The Company agrees and acknowledges that any periods during which the Holder is required to discontinue the disposition of the Registrable Securities hereunder shall be subject to the
provisions of Section 2(b). 
  
 (e) Piggy-Back
Registrations. If at any time during the Effectiveness Period there is not an effective Registration Statement covering all of the Registrable Securities and the Company shall determine to prepare and file with the Commission a registration
statement relating to an offering for its own account or the account of others under the Securities Act of any of its equity securities, other than on Form S-4 or Form S-8 (each as promulgated under the Securities Act) or their then equivalents
relating to equity securities to be issued solely in connection with any acquisition of any entity or business or equity securities issuable in connection with the stock option or other employee benefit plans, then the Company shall send to each
Holder a written notice of such determination and, if within fifteen days after the date of such notice, any such Holder shall so request in writing, the Company shall include in such registration statement all or any part of such Registrable
Securities such Holder requests to be registered, subject to customary underwriter cutbacks applicable to all holders of registration rights. 
  
 (f) Amendments and Waivers. The provisions of this Agreement, including the provisions of this sentence, may not be amended,
modified or supplemented, and 
  

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 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 each Holder of the then outstanding Registrable Securities. 
  
 (g) Notices. Any and all notices or other communications or deliveries required or permitted to be provided hereunder shall be made
in accordance with the provisions of the Purchase Agreement. 
  
 (h) Successors and Assigns. This Agreement shall inure to the benefit of and be binding upon the successors and permitted assigns of each of the parties and shall inure to the benefit of each Holder. Each
Holder may assign their respective rights hereunder in the manner and to the Persons as permitted under the Purchase Agreement. 
  
 (i) Execution and 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. 
  
 (j) Governing Law. All questions concerning the construction, validity, enforcement and interpretation of this Agreement shall be
determined with the provisions of the Purchase Agreement. 
  
 (k) Cumulative Remedies. The remedies provided herein are cumulative and not exclusive of any remedies provided by law. 
  

(l) Severability. If any term, provision, covenant or restriction of this Agreement is held by a court of competent jurisdiction
to be invalid, illegal, void or unenforceable, the remainder of the terms, provisions, covenants and restrictions set forth herein shall remain in full force and effect and shall in no way be affected, impaired or invalidated, and the parties hereto
shall use their commercially reasonable efforts to find and employ an alternative means to achieve the same or substantially the same result as that contemplated by such term, provision, covenant or restriction. It is hereby stipulated and declared
to be the intention of the parties that they would have executed the remaining terms, provisions, covenants and restrictions without including any of such that may be hereafter declared invalid, illegal, void or unenforceable. 
  
 (m) Headings. The headings in this Agreement are for
convenience of reference only and shall not limit or otherwise affect the meaning hereof. 
  
 (n) Independent Nature of Purchasers’ Obligations and Rights. Except as otherwise provided for herein, the obligations of each
Holder hereunder are several and not joint with the obligations of any other Holder hereunder, and no Holder shall be responsible in any way for the performance of the obligations of any other Holder hereunder. Nothing contained herein or in any
other agreement or document delivered at any closing, and no action taken by any Holder pursuant hereto or thereto, shall be 
  

 12 

 deemed to constitute the Holders as a partnership, an association, a joint venture or any other kind of
entity, or create a presumption that the Holders are in any way acting in concert with respect to such obligations or the transactions contemplated by this Agreement. Each Holder shall be entitled to protect and enforce its rights, including without
limitation the rights arising out of this Agreement, and it shall not be necessary for any other Holder to be joined as an additional party in any proceeding for such purpose. 
  
 (o) Notice of Disposition of Registrable Securities. Upon the request of the Company, each Holder
shall promptly provide the Company written notice at such time as it no longer holds, directly or indirectly, any Registrable Securities. 
  
 ************************* 
  

 13 

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

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

	 Name:
	 	 Gene S. Godick

	 Title:
	 	 Executive Vice President and Chief Financial
 Officer

  
 [SIGNATURE PAGE
OF HOLDERS FOLLOWS] 

 [PURCHASER’S SIGNATURE PAGE TO VERT RRA] 
  

			
	Name of Investing Entity:	  	Bluegrass Growth Fund, LP
		
	Signature of Authorized Signatory of Investing entity:	  	 /s/ Deborah Soloman

	Name of Authorized Signatory:	  	Deborah Soloman
	Title of Authorized Signatory:	  	 Managing Member, Bluegrass
 Growth Fund Partners,
LLC

  
 [SIGNATURE PAGES
CONTINUE] 

 [PURCHASER’S SIGNATURE PAGE TO VERT RRA] 
  

			
	Name of Investing Entity:	  	Bluegrass Growth Fund, Ltd.
		
	Signature of Authorized Signatory of Investing entity:	  	 /s/ Brian Shatz

	Name of Authorized Signatory:	  	Brian Shatz
	Title of Authorized Signatory:	  	Director

  
 [SIGNATURE PAGES
CONTINUE] 

 [PURCHASER’S SIGNATURE PAGE TO VERT RRA] 
  

			
	Name of Investing Entity:	  	Bridges & Pipes LLC
		
	Signature of Authorized Signatory of Investing entity:	  	 /s/ David Fuchs

	Name of Authorized Signatory:	  	David Fuchs
	Title of Authorized Signatory:	  	Managing Member

  
 [SIGNATURE PAGES
CONTINUE] 

 [PURCHASER’S SIGNATURE PAGE TO VERT RRA] 
  

			
	Name of Investing Entity:	  	Capital Ventures International
		
	Signature of Authorized Signatory of Investing entity:	  	 /s/ Martin Kobinger

	Name of Authorized Signatory:	  	Martin Kobinger
	Title of Authorized Signatory:	  	Investment Manager

  
 [SIGNATURE PAGES
CONTINUE] 

 [PURCHASER’S SIGNATURE PAGE TO VERT RRA] 
  

			
	Name of Investing Entity:	  	City Platz Limited
		
	Signature of Authorized Signatory of Investing entity:	  	 /s/ Gordon J. Mundy

	Name of Authorized Signatory:	  	Gordon J. Mundy
	Title of Authorized Signatory:	  	Director

  
 [SIGNATURE PAGES
CONTINUE] 

 [PURCHASER’S SIGNATURE PAGE TO VERT RRA] 
  

			
	Name of Investing Entity:	  	Excalibur Limited Partnership
		
	Signature of Authorized Signatory of Investing entity:	  	 /s/ William Hechter

	Name of Authorized Signatory:	  	William Hechter
	Title of Authorized Signatory:	  	President of General Partner

  
 [SIGNATURE PAGES
CONTINUE] 

 [PURCHASER’S SIGNATURE PAGE TO VERT RRA] 
  

			
	Name of Investing Entity:	  	Iroquois Capital LP
		
	Signature of Authorized Signatory of Investing entity:	  	 /s/ Joshua Silverman

	Name of Authorized Signatory:	  	Joshua Silverman
	Title of Authorized Signatory:	  	Partner

  
 [SIGNATURE PAGES
CONTINUE] 

 [PURCHASER’S SIGNATURE PAGE TO VERT RRA] 
  

			
	Name of Investing Entity:	  	Omicron Master Trust
		
	Signature of Authorized Signatory of Investing entity:	  	 /s/ Bruce Bernstein

	Name of Authorized Signatory:	  	Bruce Bernstein
	Title of Authorized Signatory:	  	Managing Partner

  
 [SIGNATURE PAGES
CONTINUE] 

 [PURCHASER’S SIGNATURE PAGE TO VERT RRA] 
  

			
	Name of Investing Entity:	  	TCMP3 Partners
		
	Signature of Authorized Signatory of Investing entity:	  	 /s/ Steven E. Slawson

	Name of Authorized Signatory:	  	Steven E. Slawson
	Title of Authorized Signatory:	  	Principal

  
 [SIGNATURE PAGES
CONTINUE] 

 [PURCHASER’S SIGNATURE PAGE TO VERT RRA] 
  

			
	Name of Investing Entity:	  	TRUK International Fund, LP
		
	Signature of Authorized Signatory of Investing entity:	  	 /s/ Michael E. Fein

	Name of Authorized Signatory:	  	Michael E. Fein
	Title of Authorized Signatory:	  	 Principal, Atoll Asset
 Management,
LLC

  
 [SIGNATURE PAGES
CONTINUE] 

 [PURCHASER’S SIGNATURE PAGE TO VERT RRA] 
  

			
	Name of Investing Entity:	  	TRUK Opportunity Fund, LP
		
	Signature of Authorized Signatory of Investing entity:	  	 /s/ Michael E. Fein

	Name of Authorized Signatory:	  	Michael E. Fein
	Title of Authorized Signatory:	  	Principal, Atoll Asset Management, LLC

  
 [SIGNATURE PAGES
CONTINUE] 

 [PURCHASER’S SIGNATURE PAGE TO VERT RRA] 
  

			
	Name of Investing Entity:	 	WPG Institutional Software Fund, L.P.
		
	Signature of Authorized Signatory of Investing Entity:	 	 /s/ George Boyd

	Name of Authorized Signatory:	 	George Boyd
	Title of Authorized Signatory:	 	Head of Equity, Weiss, Peck & Greer Investments, a division of Robeco USA, LLC, Sole Managing Member of WPG-Software Fund Manager, LLC, Supervisory General Partner of WPG Institutional
Software Fund, L.P.
		
	Signature of Authorized Signatory of Investing Entity:	 	 /s/ Ben Taylor

	Name of Authorized Signatory:	 	Ben Taylor
	Title of Authorized Signatory:	 	Managing Director, Weiss, Peck & Greer Investments, a division of Robeco USA, LLC, Sole Managing Member of WPG-Software Fund Manager, LLC, Supervisory General Partner of WPG Institutional
Software Fund, L.P.

  
 [SIGNATURE PAGES
CONTINUE] 

 [PURCHASER’S SIGNATURE PAGE TO VERT RRA] 
  

			
	Name of Investing Entity:	 	WPG Select Technology Fund, L.P.
		
	Signature of Authorized Signatory of Investing Entity:	 	 /s/ George Boyd

	Name of Authorized Signatory:	 	George Boyd
	Title of Authorized Signatory:	 	Head of Equity, Weiss, Peck & Greer Investments, a division of Robeco USA, LLC, Sole Managing Member of WPG-Software Fund Manager, LLC, General Partner of WPG Select Technology Fund,
L.P.
		
	Signature of Authorized Signatory of Investing Entity:	 	 /s/ Ben Taylor

	Name of Authorized Signatory:	 	Ben Taylor
	Title of Authorized Signatory:	 	Managing Director, Weiss, Peck & Greer Investments, a division of Robeco USA, LLC, Sole Managing Member of WPG-Software Fund Manager, LLC, General Partner of WPG Select Technology Fund,
L.P.

  
 [SIGNATURE PAGES
CONTINUE] 

 [PURCHASER’S SIGNATURE PAGE TO VERT RRA] 
  

			
	Name of Investing Entity:	 	WPG Select Technology QP Fund, L.P.
		
	Signature of Authorized Signatory of Investing Entity:	 	 /s/ George Boyd

	Name of Authorized Signatory:	 	George Boyd
	Title of Authorized Signatory:	 	Head of Equity, Weiss, Peck & Greer Investments, a division of Robeco USA, LLC, Sole Managing Member of WPG-Software Fund Manager, LLC, General Partner of WPG Select Technology QP Fund,
L.P.
		
	Signature of Authorized Signatory of Investing Entity:	 	 /s/ Ben Taylor

	Name of Authorized Signatory:	 	Ben Taylor
	Title of Authorized Signatory:	 	Managing Director, Weiss, Peck & Greer Investments, a division of Robeco USA, LLC, Sole Managing Member of WPG-Software Fund Manager, LLC, General Partner of WPG Select Technology QP
Fund, L.P.

  
 [SIGNATURE PAGES
CONTINUE] 

 [PURCHASER’S SIGNATURE PAGE TO VERT RRA] 
  

			
	Name of Investing Entity:	 	WPG Select Technology Overseas, L.P.
		
	Signature of Authorized Signatory of Investing Entity:	 	 /s/ George Boyd

	Name of Authorized Signatory:	 	George Boyd
	Title of Authorized Signatory:	 	Head of Equity, Weiss, Peck & Greer Investments, a division of Robeco USA, LLC, Sole Managing Member of WPG-Software Fund Manager, LLC, Supervisory General Partner of WPG Select
Technology Overseas, L.P.
		
	Signature of Authorized Signatory of Investing Entity:	 	 /s/ Ben Taylor

	Name of Authorized Signatory:	 	Ben Taylor
	Title of Authorized Signatory:	 	Managing Director, Weiss, Peck & Greer Investments, a division of Robeco USA, LLC, Sole Managing Member of WPG-Software Fund Manager, LLC, Supervisory General Partner of WPG Select
Technology Overseas, L.P.

  
 [SIGNATURE PAGES
CONTINUE] 

 [PURCHASER’S SIGNATURE PAGE TO VERT RRA] 
  

			
	Name of Investing Entity:	 	WPG Software Fund, L.P.
		
	Signature of Authorized Signatory of Investing Entity:	 	 /s/ George Boyd

	Name of Authorized Signatory:	 	George Boyd
	Title of Authorized Signatory:	 	Head of Equity, Weiss, Peck & Greer Investments, a division of Robeco USA, LLC, Sole Managing Member of WPG-Software Fund Manager, LLC, General Partner of WPG Software Fund,
L.P.
		
	Signature of Authorized Signatory of Investing Entity:	 	 /s/ Ben Taylor

	Name of Authorized Signatory:	 	Ben Taylor
	Title of Authorized Signatory:	 	Managing Director, Weiss, Peck & Greer Investments, a division of Robeco USA, LLC, Sole Managing Member of WPG-Software Fund Manager, LLC, General Partner of WPG Software Fund,
L.P.

  
 [SIGNATURE PAGES
CONTINUE] 

 ANNEX A 
  
 Plan of Distribution 
  
 The Selling Stockholders (the “Selling Stockholders”) of the common stock (“Common Stock”) of Verticalnet, Inc. (the
“Company”) 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 Stockholders 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 Stockholders 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 Stockholders may also sell shares under Rule 144 under the Securities Act of 1933, as amended (the “Securities Act”), if
available, rather than under this prospectus. 
  
 Broker-dealers
engaged by the Selling Stockholders may arrange for other brokers-dealers to participate in sales. Broker-dealers may receive commissions or discounts from the Selling Stockholders (or, if any broker-dealer acts as agent for the purchaser of shares,
from the purchaser) in amounts to be negotiated. The Selling Stockholders 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 Stockholders 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 Stockholders 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
Stockholders 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 Stockholders 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. The Selling Stockholders have informed the Company that it does not have any agreement or understanding, directly or indirectly, with any
person to distribute the Common Stock. 
  
 The Company is required
to pay certain fees and expenses incurred by the Company incident to the registration of the shares. The Company has agreed to indemnify the Selling Stockholders against certain losses, claims, damages and liabilities, including liabilities under
the Securities Act.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 $1.35,
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 November 24, 2004, among the Company and the purchasers signatory thereto. 
  

 1 

 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) 
  

 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 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.
 
  

 3 

 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. 
  
 (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. 
  

 4 

 (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 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 
  

 5 

 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, 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. 
  

 6 

 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). 
  
 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 
  

 7 

 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 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. 
  

 8 

 (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. 
  
 ******************** 
  

 9 

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

			
	VERTICALNET, INC.
		
	By:	 	  

	Name:	 	 
	Title:	 	 

  

 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 November     , 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.

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