Document:

exv10w2

 

Exhibit 10.2

SOURCEFIRE, INC.

FOURTH AMENDED AND RESTATED RIGHT OF FIRST REFUSAL 

AND CO-SALE AGREEMENT

     This Fourth Amended and Restated Right of First Refusal and Co-Sale Agreement (this
“Agreement”), dated as of May 24, 2006, is entered into by and among Sourcefire, Inc., a
Delaware corporation (the “Company”), the persons and entities listed on Exhibit A hereto
(individually, a “Purchaser” and collectively, the “Purchasers”) and the individuals or entities
listed on Exhibit B hereto (each a “Key Holder” and collectively, the “Key Holders”).

Recitals

     WHEREAS, certain of the Purchasers are purchasing shares of the Company’s Series D
Convertible Preferred Stock, par value $0.001 per share (the “Series D Preferred Stock”), pursuant
to that certain Series D Convertible Preferred Stock Purchase Agreement, dated as of the date
hereof, by and among the Company and the parties identified therein (the “Purchase Agreement”);

     WHEREAS, the obligations in the Purchase Agreement are conditioned upon the execution
and delivery of this Agreement;

     WHEREAS, certain of the Purchasers (the “Initial Purchasers”) are holders of the
Company’s Series A Convertible Preferred Stock, par value $0.001 per share (the “Series A Preferred
Stock”), Series B Convertible Preferred Stock, par value $0.001 per share (the “Series B Preferred
Stock,”), Series C Convertible Preferred Stock, par value $0.001 per share (the “Series C Preferred
Stock,” and together with the Series A Preferred Stock, Series B Preferred Stock and the Series D
Preferred Stock, the “Preferred Stock”);

     WHEREAS, the Company, the Initial Purchasers and the Key Holders are parties to a
Third Amended and Restated Right of First Refusal and Co-Sale Agreement, dated as of January 15,
2004 (the “Prior Agreement”);

     WHEREAS, the Key Holders are the beneficial owners of shares of the Common Stock of
the Company, par value $0.001 per share (the “Common Stock”) and options to purchase shares of
Common Stock;

     WHEREAS, the Prior Agreement can be amended with the written consent of (i) the
Company, (ii) those Initial Purchasers holding at least two-thirds of the outstanding shares of
Series A Preferred Stock, (iii) those Initial Purchasers holding at least sixty percent (60%) of
the outstanding shares of the Series B Preferred Stock, (iv) those Initial Purchasers holding at
least a majority of the outstanding shares of the Series C Preferred Stock, and (v) those Key
Holders holding Shares (as defined below) representing at least a majority of the outstanding Shares
then held by the Key Holders; and

 

 

     WHEREAS, the parties to the Prior Agreement desire to amend and restate the Prior Agreement in
its entirety and, together with the other parties hereto, desire to enter into this Agreement in
order to effect such amendment and restatement of the Prior Agreement.

     NOW, THEREFORE, for valuable consideration, the receipt and sufficiency of which is hereby
acknowledged, it is agreed as follows:

     1. Restrictions on Transfer.

          1.1. Any sale, transfer or other disposition, whether voluntarily or by operation of law
(“Transfer”) of any of the Shares held by the Key Holders, other than according to the terms of
this Agreement, shall be void and transfer no right, title, or interest in or to any of such Shares
to the purported transferee. As used in this Agreement, the term “Shares” shall include all shares
of capital stock of the Company held by the Key Holders and the Purchasers, respectively, whether
now owned or hereafter acquired; provided, however, that the 71,529 shares of Series A Preferred
Stock (as adjusted for stock splits and the like after the date hereof) held by E. Wayne Jackson,
III shall not be considered Shares held by a Key Holder subject to the transfer limitations and
rights of first refusal rights of the Purchasers set forth in Section 3, 4, 5 and 6. For purposes
of calculating any Purchaser’s “pro rata” ownership of Shares, all shares of Preferred Stock of the
Company then held by such Purchaser shall be deemed to have been converted into shares of Common
Stock of the Company at the then-effective conversion rate specified in the Company’s Certificate
of Incorporation.

          1.2. An original copy of this Agreement, duly executed by each of the parties hereto, shall be
delivered to the Secretary of the Company and maintained at the principal executive office of the
Company and made available for inspection by any person requesting it.

          1.3. Each Key Holder agrees to present the certificates representing the Shares presently
owned or hereafter acquired by such Key Holder to the Secretary of the Company and cause the
Secretary to stamp on the certificate in a prominent manner the following legend:

“The sale or other disposition of any of the shares represented by
this certificate is restricted by a Right of First Refusal and
Co-Sale Agreement, as may be amended from time to time, by and among
certain of the shareholders of this corporation and this
corporation. A copy of such agreement is available for inspection
during normal business hours at the principal executive office of
this corporation.”

     2. Transfers Not Subject to Restrictions. Notwithstanding anything to the contrary
contained herein, the right of first refusal and co-sale rights of the Company and the Purchasers
set forth in this Agreement will not apply to any Transfer by a Key Holder of Shares to the
ancestors, descendants or spouse of such Key Holder or to trusts for the benefit of such person,
provided that the transferee of such Shares delivers to the Company and the Purchasers a
written instrument agreeing to be bound by the terms of this Agreement as if he or it were a Key
Holder.

2.

 

     3. Transfers Subject to Restrictions; Offer of Sale; Notice of Proposed Sale.

          3.1. All Transfers by a Key Holder in one or more transactions, other than (a) Transfers to
permitted transferees pursuant to Section 2, and (b) Transfers of up to ten percent (10%) of the
aggregate number of Shares held by such Key Holder as of the date of this Agreement, shall require
the approval of the holders of at least a majority of the shares of the Company’s then-outstanding
Preferred Stock, provided that the Purchasers retain at least twenty-five percent (25%) of the
aggregate number of Shares held by them as of the date of this Agreement through the date of
Transfer.

          3.2. None of the Key Holders shall Transfer in one or more transactions more than twenty-five
percent (25%) of the aggregate number of Shares held by such Key Holder as of the date of this
Agreement during the three (3) year period following the date of this Agreement, provided that the
Purchasers retain at least twenty-five percent (25%) of the aggregate number of Shares held by them
as of the date of this Agreement during such three (3) year period.

          3.3. If any Key Holder desires to Transfer any of his Shares, or any interest in such Shares,
in any transaction other than pursuant to Section 2 of this Agreement, such Key Holder (the
“Selling Key Holder”) shall first deliver written notice of his desire to do so (the “Notice”) to
the Company and each of the Purchasers, in the manner prescribed in Section 10.4 of this Agreement.
The Notice must specify: (i) the name and address of the party to which the Selling Key Holder
proposes to sell or otherwise dispose of the Shares or an interest in the Shares (the “Offeror”),
(ii) the number of Shares the Selling Key Holder proposes to sell or otherwise dispose of (the
“Offered Shares”), (iii) the consideration per Share to be delivered to the Selling Key Holder for
the proposed sale, transfer or disposition and (iv) all other material terms and conditions of the
proposed transaction.

     4. Company’s Option to Purchase.

          4.1. The Company shall have the first option to purchase all or any part of the Offered Shares
for the consideration per share and on the terms and conditions specified in the Notice. The
Company must exercise such option, no later than fifteen (15) days after such Notice is deemed
under Section 10.4 hereof to have been delivered to it, by delivery of written notice to the
Selling Key Holder.

          4.2. In the event the Company does not exercise its option within such fifteen (15) day period
with respect to all of the Offered Shares, the Company shall give prompt written notice of that
fact to the Purchasers (the “Purchaser Notice”). The Purchaser Notice shall specify the number of
Offered Shares not purchased by the Company (the “Remaining Shares”).

          4.3. In the event the Company duly exercises its option to purchase all or part of the Offered
Shares, the closing of such purchase shall take place at the offices of the Company on the later of
(i) the date five (5) days after the expiration of such fifteen (15) day period or (ii)
the date that the Purchasers consummate their purchase of Remaining Shares under Section 5.1
or 5.3 hereof.

3.

 

          4.4. To the extent that the consideration proposed to be paid by the Offeror for the Offered
Shares consists of property other than cash or a promissory note, the consideration required to be
paid by the Company and/or the Purchasers exercising their options under Sections 4 and 5 hereof
may consist of cash equal to the value of such property, as determined in good faith by agreement
of the Selling Key Holder and the Company and/or the Purchasers acquiring such Offered Shares.

     5. Purchasers’ Option to Purchase.

          5.1. Each Purchaser shall have an option, exercisable for a period of fifteen (15) days from
the date of delivery of the Purchaser Notice, to purchase, its pro rata share of the Remaining
Shares for the consideration per Share and on the terms and conditions set forth in the Notice.
Each Purchaser’s pro rata share shall be equal to the product obtained by multiplying (i) the
Remaining Shares and (ii) a fraction, the numerator of which is the number of Shares owned by such
Purchaser at the time of the Transfer and the denominator of which is the total number of Shares
owned by all of the Purchasers at the time of the Transfer. Such option shall be exercised by
delivery by such Purchaser of written notice to the Selling Key Holder and to the Secretary of the
Company. Alternatively, each Purchaser may within the same fifteen (15) day period, notify the
Selling Key Holder and the Secretary of the Company of its desire to participate in the sale of the
Shares on the terms set forth in the Notice, and the number of Shares it wishes to sell.

          5.2. In the event options to purchase have been exercised by the Purchasers with respect to
some but not all of the Remaining Shares, the Company shall notify those Purchasers who have
exercised their options within the fifteen (15) day period specified in Section 5.1 of the number
of unsold shares, and each Purchaser so notified shall have an additional option, for a period of
five (5) days next succeeding delivery of the Company’s notice, to purchase all or any part of the
balance of such Remaining Shares on the terms and conditions set forth in the Notice, which option
shall be exercised by the delivery of written notice to the Selling Key Holder and to the Secretary
of the Company. In the event there are two (2) or more such Purchasers that choose to exercise the
last-mentioned option for a total number of Remaining Shares in excess of the number available, the
Remaining Shares available for each such Purchaser’s option shall be allocated to such Purchasers
pro rata based on the number of Shares owned by the Purchasers so electing.

          5.3. If the options to purchase the Remaining Shares are exercised in full by the Purchasers,
the Selling Key Holder shall immediately notify all of the exercising Purchasers of that fact. The
closing of the purchase of the Remaining Shares shall take place at the offices of the Company no
later than five (5) days after the date of such notice to the Purchasers.

          5.4. For purposes of this Section 5, Core Capital Partners, L.P. and Minotaur Funds, LLC shall
be deemed to be one Purchaser for purposes of determining their pro rata share of the Remaining
Shares (the “Core Pro Rata Share”), and Core Capital Partners, L.P. and
Minotaur Funds, LLC (either individually or together) shall have the right to repurchase all
or part of the Core Pro Rata Share.

4.

 

     6. Failure to Exercise Options; Co-Sale.

          6.1. If the Company and the Purchasers do not exercise all of their options to purchase all of
the Offered Shares within the periods described in this Agreement (the “Option Period”), then such
unexercised options of the Company and the Purchasers to purchase the Offered Shares shall
terminate. Each Purchaser which has, pursuant to Section 5.1, expressed a desire to sell Shares in
the transaction (a “Participating Purchaser”) shall be entitled to do so pursuant to this Section
6. The Selling Key Holder shall use reasonable efforts to interest the Offeror in purchasing, in
addition to the remaining Offered Shares, the Shares the Participating Purchasers wish to sell. If
the Offeror does not wish to purchase all of the Shares made available by the Selling Key Holder
and the Participating Purchasers, then each Participating Purchaser and the Selling Key Holder
shall be entitled to sell, at the price and on the terms and conditions set forth in the Notice
(provided that the price set forth in the Offer with respect to shares of Common Stock shall be
appropriately adjusted, if necessary, based on the conversion ratio of any Preferred Stock to be
sold), a portion of the Shares being sold to the Offeror, in the same proportion as such Selling
Key Holder or Participating Purchaser’s ownership of Shares bears to the aggregate number of Shares
owned by the Selling Key Holder and the Participating Purchasers. The transaction contemplated by
the Notice shall be consummated not later than sixty (60) days after the expiration of the Option
Period.

          6.2. If the Participating Purchasers do not elect to sell the full number of Shares which they
are entitled to sell pursuant to Section 6.1, the Selling Key Holder shall be entitled to sell to
the Offeror, according to the terms set forth in the Notice, that number of his own Shares which
equals the difference between the number of Shares desired to be purchased by the Offeror and the
number of Shares the Participating Purchasers elect to sell pursuant to Section 6.1. If the
Selling Key Holder wishes to Transfer any such Shares at a price per Share which differs from that
set forth in the Notice, upon terms different from those previously offered to the Company and the
Purchasers, or more than sixty (60) days after the expiration of the Option Period, then, as a
condition precedent to such transaction, such Shares must first be offered to the Company and the
Purchasers on the same terms and conditions as given the Offeror, and in accordance with the
procedures and time periods set forth above in Sections 3, 4 and 5 and this Section 6.

          6.3. The proceeds of any sale made by the Selling Key Holder without compliance with the
provisions of this Section 6 shall be deemed to be held in constructive trust in such amount as
would have been due the Participating Purchasers if the Selling Key Holder had complied with this
Agreement.

     7. Voting and Required Sale. If (i) any person or entity offers to acquire all or
substantially all of the assets or business of the Company, by merger, sale of assets or otherwise
(except a merger or consolidation in which the holders of capital stock of the Company immediately
prior to such merger or consolidation continue to hold immediately following such merger or
consolidation at least a majority of the then outstanding shares of voting capital stock
of the surviving corporation), (ii) such transaction is approved by the Board of Directors of
the Company, (iii) such transaction is approved by the holders of at least two-thirds of the Series
A

5.

 

Preferred Stock then-outstanding, (iv) such transaction is approved by the holders of at least
sixty percent (60%) of the Series B Preferred Stock then-outstanding, (v) such transaction is
approved by the holders of at least a majority of the Series C Preferred Stock then-outstanding,
and (vi) such transaction is approved by the holders of at least a majority of the Series D
Preferred Stock then-outstanding, then each party to this Agreement shall be obligated to (a) vote
all of his, her or its Shares in favor of such transaction, to the extent any such vote is required
for the consummation of such transaction, (b) sell, transfer or exchange all of his, her or its
Shares in connection with such transaction on the same terms as those approved by the Board of
Directors and the holders of the Shares, and (c) execute and deliver such instruments of conveyance
and transfer and take such other action, including executing any purchase agreement, merger
agreement, indemnity agreement, escrow agreement or related documents, as may be reasonably
required by the Company in order to carry out the terms and provision of this Section 7. If a
party to this Agreement fails or refuses to vote or sell his, her or its Shares as required by, or
votes his, her or its Shares in contravention of this Section 7, then such party hereby grants to
each of the Chief Executive Officer, President and Treasurer of the Company an irrevocable proxy,
coupled with an interest, to vote such Shares in accordance with Section 7, and hereby appoints the
Chief Executive Officer, President and Treasurer of the Company and each of them acting singly, as
his, her or its attorney in fact, to sell such Shares in accordance with the terms of this Section
7. At the closing of such transaction, each of the parties to this Agreement shall deliver,
against receipt of the consideration payable in such transaction, certificates representing the
Shares which such party holds of record or beneficially, with all endorsements necessary for
transfer. In the event that any party fails or refuses to comply with the provisions of this
Section 7, the Company, the Purchasers and the purchaser in such transaction, at their option, may
elect to proceed with such transaction notwithstanding such failure or refusal and, in such event
and upon tender of the specified consideration to any such party, the rights of any such party with
respect to the Shares shall cease.

     8. Termination.

          8.1. This Agreement shall continue in full force and effect from the date hereof through the
earliest of the following dates, on which date it shall terminate in its entirety: (a) the
closing of a Company Sale (as defined in the Fourth Amended and Restated Investor Rights Agreement
of even date herewith among the Company and the Purchasers), (b) the closing of a Qualifying Public
Offering (as defined in the Company’s Certificate of Incorporation as amended from time to time) or
(c) the date on which (i) the Company, (ii) the holders of at least two-thirds of the Series A
Preferred Stock then-outstanding, (iii) the holders of at least sixty percent (60%) of the Series B
Preferred Stock then-outstanding, (iv) the holders of at least a majority of the Series C Preferred
Stock then-outstanding, and (v) the holders of at least a majority of the Series D Preferred Stock
then-outstanding agree in writing to terminate this Agreement.

          8.2. The provisions of Sections 3, 4, 5 and 6 hereof shall not apply to any sale of Shares
pursuant to a Company Sale or an Qualifying Public Offering.

6.

 

     9. Transfers of Rights; Calculation of Share Numbers.

          9.1. This Agreement, and the rights and obligations of each Purchaser hereunder, may be
assigned by such Purchaser to any person or entity to which Shares are transferred by such
Purchaser. Such transferee shall be deemed a “Purchaser” for purposes of this Agreement;
provided, however, that such assignment of rights shall be contingent upon the
transferee providing a written instrument to the Company notifying the Company of such transfer and
assignment and agreeing in writing to be bound by the terms of this Agreement.

          9.2. In determining the number of Shares owned by a Purchaser for purposes of exercising
rights under this Agreement, (a) Shares owned by a Purchaser shall be deemed to include Shares
which have been converted into Common Stock so long as such Common Stock is owned by such
Purchaser, (b) all Shares held or acquired by Core Capital Partners, L.P. and Minotaur, LLC shall
be aggregated together for purposes of determining the rights of each under this Agreement and (c)
all Shares held by affiliated entities or persons shall be aggregated together (provided that no
shares shall be attributed to more than one entity or person within any such group of affiliated
entities or persons).

     10. General.

          10.1. Severability. The invalidity or unenforceability of any provision of this
Agreement shall not affect the validity or enforceability of any other provision of this Agreement.

          10.2. Specific Performance. In addition to any and all other remedies that may be
available at law in the event of any breach of this Agreement, each Purchaser shall be entitled to
specific performance of the agreements and obligations of the Company and Key Holders hereunder and
to such other injunctive or other equitable relief as may be granted by a court of competent
jurisdiction.

          10.3. Governing Law. This Agreement shall be governed by and construed in accordance
with the internal laws of the State of Delaware (without reference to the conflicts of law
provisions thereof). THE PARTIES TO THIS AGREEMENT HEREBY WAIVE THEIR RIGHT TO A TRIAL BY JURY
WITH RESPECT TO DISPUTES ARISING UNDER THIS AGREEMENT AND THE RELATED AGREEMENTS AND CONSENT TO A
BENCH TRIAL WITH THE APPROPRIATE JUDGE ACTING AS THE FINDER OF FACT.

          10.4. Notices. All notices, requests, consents, and other communications under this
Agreement shall be in writing and shall be deemed delivered (a) upon personal delivery to the party
to be notified, (b) when sent by confirmed electronic mail, or facsimile if sent during normal
business hours of the recipient, if not, then on the next business day, (c) five (5) days after
having been sent by registered or certified mail, return receipt requested, postage prepaid, or (d)
one (1) day after deposit with a nationally recognized overnight courier, specifying next day
delivery, with written verification of receipt, in each case to the intended recipient as set forth
below:

7.

 

     If to the Company, at Sourcefire, Inc., 9770 Patuxent Woods Drive, Columbia, MD 21046,
Attention: General Counsel and Chief Financial Officer, or at such other address as may have been
furnished in writing by the Company to the other parties hereto, with a copy to Morrison & Foerster
LLP, 1650 Tysons Boulevard, Suite 300, McLean, Virginia 22102, Attention: Thomas J. Knox, Esq.;
and

     If to a Purchaser, at its address set forth on Exhibit A, or at such other address as
may have been furnished in writing by such Purchaser to the other parties hereto, with copies to
(i) Latham & Watkins LLP, 140 Scott Drive, Menlo Park, California 94025, Attention: Mark V.
Roeder, Esq., (ii) Weil, Gotshal & Manges LLP, 201 Redwood Shores Parkway, Redwood Shores,
California 94065, Attention: Richard S. Millard, Esq., and (iii) Cooley Godward LLP, 11951 Freedom
Drive, Reston, Virginia 20190, Attention: Michael R. Lincoln, Esq.; and

     If to a Key Holder, at the address set forth on Exhibit B, or at such other address as
may have been furnished in writing by such Key Holder to the other parties hereto.

          10.5. Complete Agreement. This Agreement constitutes the entire agreement and
understanding of the parties hereto with respect to the subject matter hereof, and supersedes all
prior agreements and understandings relating to such subject matter.

          10.6. Amendments and Waivers. This Agreement may be amended and the observance of any
term of this Agreement may be waived with respect to all parties to this Agreement (either
generally or in a particular instance and either retroactively or prospectively), with the written
consent of (i) the Company, (ii) the holders of at least two-thirds of the Series A Preferred Stock
then-outstanding, (iii) the holders of at least sixty percent (60%) of the Series B Preferred Stock
then-outstanding, (iv) the holders of at least a majority of the Series C Preferred Stock
then-outstanding, (v) the holders of at least a majority of the Series D Preferred Stock
then-outstanding, and (vi) those Key Holders holding Shares representing at least a majority of the
outstanding Shares then held by the Key Holders. The Company shall give prompt written notice of
any amendment or waiver hereunder to any party hereto that did not consent in writing to such
amendment or waiver. Any amendment, termination or waiver effected in accordance with this Section
10.6 shall be binding on all parties hereto, even if they do not execute such consent. No waivers
of or exceptions to any term, condition or provision of this Agreement, in any one or more
instances, shall be deemed to be, or construed as, a further or continuing waiver of any such term,
condition or provision.

          10.7. Pronouns. Whenever the context may require, any pronouns used in this Agreement
shall include the corresponding masculine, feminine or neuter forms, and the singular form of nouns
and pronouns shall include the plural, and vice versa.

          10.8. Counterparts; Facsimile Signatures. This Agreement may be executed in any
number of counterparts, each of which shall be deemed to be an original, and all of which together
shall constitute one and the same document. This Agreement may be executed by facsimile
signatures.

8.

 

          10.9. Section Headings and References. The section headings are for the convenience
of the parties and in no way alter, modify, amend, limit or restrict the contractual obligations of
the parties. Any reference in this Agreement to a particular section or subsection shall refer to
a section or subsection of this Agreement, unless specified otherwise.

          10.10. Attorneys’ Fees. In the event that any suit or action is instituted under or
in relation to this Agreement, including without limitation to enforce any provision in this
Agreement, the prevailing party in such dispute shall be entitled to recover from the losing party
all fees, costs and expenses of enforcing any right of such prevailing party under or with respect
to this Agreement, including without limitation, such reasonable fees and expenses of attorneys and
accountants, which shall include, without limitation, all fees, costs and expenses of appeals.

          10.11. Amendment of Prior Agreement. The Prior Agreement is hereby amended and
superseded in its entirety and restated herein. All provisions of, rights granted and covenants
made in the Prior Agreement are hereby waived, released and superseded in their entirety and shall
have no further force or effect.

{Signatures on Following Page}

9.

 

     IN WITNESS WHEREOF, this Fourth Amended and Restated Right of First Refusal and Co-Sale
Agreement has been executed by the parties hereto as of the day and year first above written.

	 	 	 	 	 
	 	 	COMPANY:
	 
	 	 	 	 
	 	 	SOURCEFIRE, INC.
	 
	 	 	 	 
	 

	 	By:	 	/s/ E. Wayne Jackson, III
	 

	 	 	 	 
	 

	 	Name:
	 	E. Wayne Jackson, III
	 	 	Title: Chief Executive Officer
	 
	 	 	 	 
	 	 	KEY HOLDERS:
	 
	 	 	 	 
	 
	 	/s/ E. Wayne Jackson, III
	 	 	 
	 	 	E. Wayne Jackson, III
	 
	 	 	 	 
	 
	 	/s/ Thomas McDonough

	 	 	 
	 	 	Thomas McDonough
	 
	 	 	 	 
	 
	 	/s/ Martin Roesch

	 	 	 
	 	 	Martin Roesch
	 
	 	 	 	 
	 
	 	 	 	 
	 	 	 
	 	 	John Pavlick
	 
	 	 	 	 
	 	 	Stephen Northcutt and Jo-Kathlyn Northcutt,
Co-Trustees, Northcutt Family Revocable Living Trust
of 2002
	 
	 	 	 	 
	 

	 	By:	 	 
	 

	 	 	 	 
	 	 	Stephen Northcutt, Co-Trustee
	 
	 	 	 	 
	 

	 	By:	 	 
	 

	 	 	 	 
	 	 	Kathlyn Northcutt, Co-Trustee

Sourcefire — Series D Co-Sale Agreement

 

 

	 	 	 	 	 
	SERIES
D PURCHASERS:

	 
	 	 	 	 
	 	 	Meritech Capital Partners III L.P.
	 
	 	 	 	 
	 

	 	By:
	 	Meritech Capital Associates III L.L.C. its General Partner
	 
	 	 	 	 
	 

	 	By:
	 	Meritech Management Associates III L.L.C.
a managing member
	 
	 	 	 	 
	 

	 	By:	 	/s/ Michael B. Gordon
	 

	 	 	 	 
	 

	 	 	 	Michael B. Gordon, a managing member
	 
	 	 	 	 
	 	 	Meritech Capital Affiliates III L.P.
	 
	 	 	 	 
	 

	 	By:
	 	Meritech Capital Associates III L.L.C.
its General Partner
	 
	 	 	 	 
	 

	 	By:
	 	Meritech Management Associates III L.L.C.
a managing member
	 
	 	 	 	 
	 

	 	By:	 	/s/ Michael B. Gordon
	 

	 	 	 	 
	 

	 	 	 	Michael B. Gordon, a managing member

Sourcefire — Series D Co-Sale Agreement

 

 

	 	 	 	 	 
	 	 	SEQUOIA CAPITAL FRANCHISE FUND

SEQUOIA CAPITAL FRANCHISE PARTNERS
	 
	 	 	 	 
	 

	 	By:
	 	SCFF Management, LLC
	 	 	a Delaware Limited Liability Company

General Partner of Each
	 
	 	 	 	 
	 

	 	By:	 	/s/ Michael Moritz
	 

	 	 	 	 
	 

	 	 	 	Managing Member

Sourcefire — Series D Co-Sale Agreement

 

 

	 	 	 	 	 
	 	 	NEW ENTERPRISE ASSOCIATES 10, LIMITED

  PARTNERSHIP
	 
	 	 	 	 
	 

	 	By:
	 	NEA Partners 10, Limited Partnership
	 
	 	 	 	 
	 

	 	By:	 	 /s/ Charles W. Newhall III
	 

	 	 	 	 
	 

	 	Name:	 	 Charles W. Newhall III
	 

	 	Title:
	 	General Partner
	 
	 	 	 	 
	 
	 	 	 	 
	 	 	 
	 	 	MARK A. FRANTZ

Sourcefire — Series D Co-Sale Agreement

 

 

	 	 	 	 	 
	 	 	SIERRA VENTURES VIII-A, L.P.
	 
	 	 	 	 
	 

	 	By:	 	/s/ Tim Guleri
	 

	 	 	 	 
	 

	 	Name:

Title:
	 	Tim Guleri

Manager
	 	 	on behalf of Sierra Ventures Associates VIII, LLC the
General Partner of Sierra Ventures VIII-A, L.P.
	 
	 	 	 	 
	 	 	SIERRA VENTURES VIII-B, L.P.
	 
	 	 	 	 
	 

	 	By:	 	/s/ Tim Guleri
	 

	 	 	 	 
	 

	 	Name:

Title:
	 	Tim Guleri

Manager
	 	 	on behalf of Sierra Ventures Associates VIII, LLC
the General Partner of Sierra Ventures VIII-B, L.P.
	 
	 	 	 	 
	 	 	SIERRA VENTURES ASSOCIATES VIII, L.L.C.,
as 

  nominee for its members:
	 
	 	 	 	 
	 

	 	By:	 	/s/ Tim Guleri
	 

	 	 	 	 
	 

	 	Name:

Title:
	 	Tim Guleri

Manager
	 
	 	 	 	 
	 	 	SIERRA VENTURES VII, L.P.
	 
	 	 	 	 
	 

	 	By:	 	/s/ David C. Schwab
	 

	 	 	 	 
	 

	 	Name:
	 	David C. Schwab
	 

	 	Title:
	 	Manager
	 	 	on behalf of Sierra Ventures Associates VII, LLC the
General Partner of Sierra Ventures VII, L.P.
	 
	 	 	 	 
	 	 	SIERRA VENTURES ASSOCIATES VII, L.L.C.,
as 

  nominee for its members
	 
	 	 	 	 
	 

	 	By:	 	/s/ David C. Schwab
	 

	 	 	 	 
	 

	 	Name:
	 	David C. Schwab
	 

	 	Title:
	 	Manager

Sourcefire — Series D Co-Sale Agreement

 

 

	 	 	 	 	 
	 	 	CORE CAPITAL PARTNERS, L.P.
	 
	 	 	 	 
	 

	 	By:	 	 /s/ Pascal Luck
	 

	 	 	 	 
	 

	 	Name:	 	Pascal Luck
	 

	 	Title:	 	Managing Director
	 
	 	 	 	 
	 	 	MINOTAUR FUNDS, LLC
	 
	 	 	 	 
	 

	 	By:	 	/s/ Mark Levine
	 

	 	 	 	 
	 

	 	Name:
	 	Mark Levine
	 

	 	Title:
	 	Managing Member
	 
	 	 	 	 
	 	 	MINOTAUR ANNEX FUND, LLC
	 
	 	 	 	 
	 

	 	By:	 	/s/ Mark Levine
	 

	 	 	 	 
	 

	 	Name:
	 	Mark Levine
	 

	 	Title:
	 	Managing Member
	 
	 	 	 	 
	 	 	INFLECTION POINT VENTURES, L.P.

By: Inflection Point Associates, L.P.
	 
	 	 	 	 
	 
	 	 	 	/s/ Timothy Webb
	 	 	 
	 

	 	By:
	 	Inflection Point Management, LLC
	 

	 	Its:
	 	General Partner
	 
	 	 	 	 
	 

	 	Name:	 	 Timothy Webb
	 

	 	 	 	 
	 
	 	 	 	 
	 

	 	Title:	 	Authorized Manager
	 

	 	 	 	 
	 
	 	 	 	 
	 	 	INFLECTION POINT VENTURES II, L.P.
	 
	 	 	 	 
	 
	 	 	 	/s/ Timothy Webb
	 	 	 
	 

	 	By:
	 	Inflection Point SBIC Associates LLC
	 

	 	Its:
	 	General Partner
	 
	 	 	 	 
	 

	 	Name:	 	Timothy Webb
	 

	 	 	 	 
	 
	 	 	 	 
	 

	 	Title:	 	Authorized Manager
	 

	 	 	 	 

Sourcefire — Series D Co-Sale Agreement

 

 

	 	 	 	 	 
	 	 	SERIES C PURCHASERS:
	 
	 	 	 	 
	 	 	SEQUOIA CAPITAL FRANCHISE FUND

SEQUOIA CAPITAL FRANCHISE PARTNERS
	 
	 	 	 	 
	 

	 	By:
	 	SCFF Management, LLC
	 	 	a Delaware Limited Liability Company 

General Partner of Each
	 
	 	 	 	 
	 

	 	By:	 	/s/ Douglas Leone
	 

	 	 	 	 
	 

	 	 	 	Managing Member

Sourcefire — Series D Co-Sale Agreement

 

 

	 	 	 	 	 
	 	 	NEW ENTERPRISE ASSOCIATES 10, LIMITED PARTNERSHIP
	 
	 	 	 	 
	 

	 	By:
	 	NEA Partners 10, Limited Partnership
	 
	 	 	 	 
	 

	 	By:	 	/s/ Charles W. Newhall III
	 

	 	 	 	 
	 

	 	Name:	 	Charles W. Newhall III
	 

	 	Title:
	 	General Partner
	 
	 	 	 	 
	 	 	BIG BASIN PARTNERS, L.P.
	 
	 	 	 	 
	 

	 	By:	 	 
	 

	 	 	 	 
	 

	 	 	 	Frank Marshall
	 

	 	Its:
	 	General Partner

Sourcefire — Series D Co-Sale Agreement

 

 

	 	 	 	 	 
	 	 	SIERRA VENTURES VII, L.P.
	 
	 	 	 	 
	 

	 	By:	 	/s/ David C. Schwab
	 

	 	 	 	 
	 

	 	Name:
	 	David C. Schwab
	 

	 	Title:
	 	Manager
	 
	 	 	 	 
	 	 	on behalf of Sierra Ventures Associates VII, L.L.C.,
the General Partner of Sierra Ventures VII, L.P.
	 
	 	 	 	 
	 	 	SIERRA VENTURES VIII-A, L.P.
	 
	 	 	 	 
	 

	 	By:	 	/s/ Tim Guleri
	 

	 	 	 	 
	 

	 	Name:
	 	Tim Guleri
	 

	 	Title:
	 	Manager
	 
	 	 	 	 
	 	 	on behalf of Sierra Ventures Associates VIII, L.L.C.,
the General Partner of Sierra Ventures VIII-A, L.P.
	 
	 	 	 	 
	 	 	SIERRA VENTURES VIII-B, L.P.
	 
	 	 	 	 
	 

	 	By:	 	/s/ Tim Guleri
	 

	 	 	 	 
	 

	 	Name:
	 	Tim Guleri
	 

	 	Title:
	 	Manager
	 
	 	 	 	 
	 	 	on behalf of Sierra Ventures Associates VIII, L.L.C.,
the General Partner of Sierra Ventures VIII-B, L.P.
	 
	 	 	 	 
	 	 	SIERRA VENTURES ASSOCIATES VII, L.L.C.,
as nominee 

  for its members
	 
	 	 	 	 
	 

	 	By:	 	/s/ David C. Schwab
	 

	 	 	 	 
	 

	 	Name:
	 	David C. Schwab
	 

	 	Title:
	 	Manager
	 
	 	 	 	 
	 	 	SIERRA VENTURES ASSOCIATES VIII, L.L.C.,
as 

  nominee for its members
	 
	 	 	 	 
	 

	 	By:	 	/s/ Tim Guleri
	 

	 	 	 	 
	 

	 	Name:
	 	Tim Guleri
	 

	 	Title:
	 	Manager

Sourcefire — Series D Co-Sale Agreement

 

 

	 	 	 	 	 
	 	 	CORE CAPITAL PARTNERS, L.P.
	 
	 	 	 	 
	 

	 	By:	 	/s/ Pascal Luck
	 

	 	 	 	 
	 

	 	Name:

Title:
	 	Pascal Luck

Managing Director
	 
	 	 	 	 
	 	 	MINOTAUR FUNDS, LLC
	 
	 	 	 	 
	 

	 	By:	 	/s/ Mark Levine
	 

	 	 	 	 
	 

	 	Name:

Title:
	 	Mark Levine

Managing Member
	 
	 	 	 	 
	 	 	INFLECTION POINT VENTURES, L.P.
	 
	 	 	 	 
	 

	 	By:
	 	Inflection Point Associates, L.P.
	 
	 	 	 	 
	 
	 	 	 	 
	 	 	/s/ Timothy Webb
	 

	 	By:

Its:

Name:

Title:
	 	Inflection Point Management LLC

General Partner

Timothy Webb

Authorized Manager
	 
	 	 	 	 
	 	 	INFLECTION POINT VENTURES II, L.P.
	 
	 	 	 	 
	 
	 	 	 	 
	 	 	/s/ Timothy Webb
	 

	 	By:

Its:

Name:

Title:
	 	Inflection Point SBIC Associates LLC

General Partner

Timothy Webb

Authorized Manager
	 
	 	 	 	 
	 
	 	 	 	 
	 	 	/s/ MARK A. FRANTZ
	 	 	MARK A. FRANTZ
	 
	 	 	 	 
	 
	 	 	 	 
	 	 	 
	 	 	FRANK A. BONSAL, JR.
	 
	 	 	 	 
	 	 	Asheem Chandna and Aarti Chandna, as
Trustees of the Chandna Family Revocable
Trust as of April 13, 1998
	 
	 	 	 	 
	 

	 	By:	 	/s/ ASHEEM CHANDNA
	 

	 	 	 	 
	 

	 	 	 	ASHEEM CHANDNA
	 
	 	 	 	 
	 

	 	By:	 	/s/ AARTI CHANDNA
	 

	 	 	 	 
	 

	 	 	 	AARTI CHANDNA

Sourcefire — Series D Co-Sale Agreement

 

 

	 	 	 	 	 
	 	 	SERIES B PURCHASERS:
	 
	 	 	 	 
	 	 	NEW ENTERPRISE ASSOCIATES 10, LIMITED 

  PARTNERSHIP
	 
	 	 	 	 
	 

	 	By:
	 	NEA Partners 10, Limited Partnership
	 
	 	 	 	 
	 

	 	By:	 	/s/ Charles W. Newhall III
	 

	 	 	 	 
	 

	 	Name:	 	Charles W. Newhall III
	 

	 	Title:
	 	General Partner
	 
	 	 	 	 
	 	 	NEA VENTURES 2003, LIMITED PARTNERSHIP
	 
	 	 	 	 
	 

	 	By:	 	/s/ Pamela J. Clark
	 

	 	 	 	 
	 

	 	Name:	 	Pamela J. Clark
	 

	 	Title:	 	Vice President
	 
	 	 	 	 
	 	 	BIG BASIN PARTNERS, L.P.
	 
	 	 	 	 
	 

	 	By:	 	 
	 

	 	 	 	 
	 

	 	 	 	Frank Marshall
	 

	 	Its:
	 	General Partner

Sourcefire — Series D Co-Sale Agreement

 

 

	 	 	 	 	 
	 	 	SIERRA VENTURES VII, L.P.
	 
	 	 	 	 
	 

	 	By:	 	/s/ David C. Schwab
	 

	 	 	 	 
	 

	 	Name:

Title:
	 	David C. Schwab

Manager
	 
	 	 	 	 
	 	 	on behalf of Sierra Ventures Associates VII, L.L.C.,
the General Partner of Sierra Ventures VII, L.P.
	 
	 	 	 	 
	 	 	SIERRA VENTURES VIII-A, L.P.
	 
	 	 	 	 
	 

	 	By:	 	/s/ Tim Guleri
	 

	 	 	 	 
	 

	 	Name:

Title:
	 	Tim Guleri

Manager
	 
	 	 	 	 
	 	 	on behalf of Sierra Ventures Associates VIII, L.L.C.,
the General Partner of Sierra Ventures VIII-A, L.P.
	 
	 	 	 	 
	 

	 	SIERRA
	 	 VENTURES VIII-B, L.P.
	 
	 	 	 	 
	 

	 	By:	 	/s/ Tim Guleri
	 

	 	 	 	 
	 

	 	Name:

Title:
	 	Tim Guleri

Manager
	 
	 	 	 	 
	 	 	on behalf of Sierra Ventures Associates VIII, L.L.C.,
the General Partner of Sierra Ventures VIII-B, L.P.
	 
	 	 	 	 
	 	 	SIERRA VENTURES ASSOCIATES VII, L.L.C.,
as nominee 

  for its members
	 
	 	 	 	 
	 

	 	By:	 	/s/ David C. Schwab
	 

	 	 	 	 
	 

	 	Name:

Title:
	 	David C. Schwab

Manager
	 
	 	 	 	 
	 	 	SIERRA VENTURES ASSOCIATES VIII, L.L.C.,
as nominee 

  for its members
	 
	 	 	 	 
	 

	 	By:	 	/s/ Tim Guleri
	 

	 	 	 	 
	 

	 	Name:

Title:
	 	Tim Guleri

Manager

Sourcefire — Series D Co-Sale Agreement

 

 

	 	 	 	 	 
	 	 	CORE CAPITAL PARTNERS, L.P.
	 
	 	 	 	 
	 

	 	By:	 	/s/
Pascal Luck
	 

	 	 	 	 
	 

	 	Name:
	 	Pascal Luck
	 

	 	Title:
	 	Managing Director
	 
	 	 	 	 
	 	 	MINOTAUR FUNDS, LLC
	 
	 	 	 	 
	 

	 	By:	 	/s/ Mark Levine
	 

	 	 	 	 
	 

	 	Name:
	 	Mark Levine
	 

	 	Title:
	 	Managing Member
	 
	 	 	 	 
	 	 	INFLECTION POINT VENTURES, L.P.
	 
	 	 	 	 
	 

	 	By:
	 	Inflection Point Associates, L.P.
	 
	 	 	 	 
	 
	 	/s/ Timothy Webb
	 	 	 
	 

	 	By:

Its:

Name:

Title:
	 	Inflection Point Management LLC

General Partner

Timothy Webb

Authorized Manager
	 
	 	 	 	 
	 	 	INFLECTION POINT VENTURES II, L.P.
	 
	 	 	 	 
	 
	 	/s/ Timothy Webb
	 	 	 
	 

	 	By:

Its:

Name:

Title:
	 	Inflection Point SBIC Associates LLC

General Partner

Timothy Webb

Authorized Manager
	 
	 	 	 	 
	 
	 	/s/ Mark A. Frantz
	 	 	 
	 	 	MARK A. FRANTZ
	 
	 	 	 	 
	 
	 	 	 	 
	 	 	 
	 	 	FRANK A. BONSAL, JR.

Sourcefire — Series D Co-Sale Agreement

 

 

	 	 	 	 	 
	 	 	SERIES A PURCHASERS:
	 
	 	 	 	 
	 	 	SIERRA VENTURES VII, L.P.
	 
	 	 	 	 
	 

	 	By:	 	/s/ David C. Schwab
	 

	 	 	 	 
	 

	 	Name:
	 	David C. Schwab
	 

	 	Title:
	 	Manager
	 
	 	 	 	 
	 	 	on behalf of Sierra Ventures Associates VII, L.L.C.,
the General Partner of Sierra Ventures VII, L.P.
	 
	 	 	 	 
	 	 	SIERRA VENTURES VIII-A, L.P.
	 
	 	 	 	 
	 

	 	By:	 	/s/ Tim Guleri
	 

	 	 	 	 
	 

	 	Name:
	 	Tim Guleri
	 

	 	Title:
	 	Manager
	 
	 	 	 	 
	 	 	on behalf of Sierra Ventures Associates VIII, L.L.C.,
the General Partner of Sierra Ventures VIII-A, L.P.
	 
	 	 	 	 
	 	 	SIERRA VENTURES VIII-B, L.P.
	 
	 	 	 	 
	 

	 	By:	 	/s/ Tim Guleri
	 

	 	 	 	 
	 

	 	Name:
	 	Tim Guleri
	 

	 	Title:
	 	Manager
	 
	 	 	 	 
	 	 	on behalf of Sierra Ventures Associates VIII, L.L.C.,
the General Partner of Sierra Ventures VIII-B, L.P.
	 
	 	 	 	 
	 	 	SIERRA VENTURES ASSOCIATES VII, L.L.C.,
as nominee 

  for its members
	 
	 	 	 	 
	 

	 	By:	 	/s/ David C. Schwab
	 

	 	 	 	 
	 

	 	Name:
	 	David C. Schwab
	 

	 	Title:
	 	Manager
	 
	 	 	 	 
	 	 	SIERRA VENTURES ASSOCIATES VIII, L.L.C.,
as nominee 

  for its members
	 
	 	 	 	 
	 

	 	By:	 	/s/ Tim Guleri
	 

	 	 	 	 
	 

	 	Name:
	 	Tim Guleri
	 

	 	Title:
	 	Manager

Sourcefire — Series D Co-Sale Agreement

 

 

	 	 	 	 	 
	 	 	CORE CAPITAL PARTNERS, L.P.
	 
	 	 	 	 
	 

	 	By:	 	/s/ Pascal Luck
	 

	 	 	 	 
	 

	 	Name:

Title:
	 	Pascal Luck

Managing Member
	 
	 	 	 	 
	 	 	MINOTAUR FUNDS, LLC
	 
	 	 	 	 
	 

	 	By:	 	/s/ Mark Levine
	 

	 	 	 	 
	 

	 	Name:

Title:
	 	Mark Levine

Managing Member
	 
	 	 	 	 
	 	 	INFLECTION POINT VENTURES, L.P.
	 
	 	 	 	 
	 

	 	By:
	 	Inflection Point Associates, L.P.
	 
	 	 	 	 
	 
	 	/s/ Timothy Webb
	 	 	 
	 

	 	By:

Its:

Name:

Title:
	 	Inflection Point Management LLC

General Partner

Timothy Webb

Authorized Manager
	 
	 	 	 	 
	 	 	INFLECTION POINT VENTURES II, L.P.
	 
	 	 	 	 
	 
	 	/s/ Timothy Webb	 	 
	 	 	 
	 

	 	By:

Its:

Name:

Title:
	 	Inflection Point SBIC Associates LLC

General Partner

Timothy Webb

Authorized Manager
	 
	 	 	 	 
	 
	 	/s/ E. Wayne Jackson, III	 	 
	 	 	 
E. WAYNE JACKSON, III
	 
	 	 	 	 
	 	 	MARYLAND DEPARTMENT OF BUSINESS AND ECONOMIC DEVELOPMENT
	 
	 	 	 	 
	 

	 	By:	 	/s/ Aris Melissaratos
	 

	 	 	 	 
	 

	 	Name:

Its:
	 	Aris Melissaratos

Secretary

Sourcefire — Series D Co-Sale Agreement

 

 

	 	 	 	 	 
	 	 	BIG BASIN PARTNERS, L.P.
	 
	 	 	 	 
	 

	 	By:	 	 
	 

	 	 	 	 
	 

	 	

Its:
	 	Frank Marshall

General Partner
	 
	 	 	 	 
	 	 	Asheem Chandna and Aarti Chandna, as
Trustees of the Chandna Family Revocable
Trust as of April 13, 1998
	 
	 	 	 	 
	 

	 	By:	 	/s/  Asheem Chandna
	 

	 	 	 	 
	 

	 	 	 	ASHEEM CHANDNA
	 
	 	 	 	 
	 

	 	By:	 	/s/  Aarti Chandna
	 

	 	 	 	 
	 

	 	 	 	AARTI CHANDNA

Sourcefire — Series D Co-Sale Agreement

 

 

EXHIBIT A

List of Purchasers

Name and Address

Meritech Capital Partners III, L.P.

285 Hamilton Avenue

Suite 200

Palo Alto, CA 94301

Meritech Capital Affiliates III L.P.

285 Hamilton Avenue

Suite 200

Palo Alto, CA 94301

Sequoia Capital Franchise Fund &

Sequoia Capital Franchise Partners

3000 Sand Hill Road

Building 4, Suite 180

Menlo Park, California 94025

New Enterprise Associates 10, Limited Partnership

NEA Ventures 2003, Limited Partnership

Attn: Harry Weller

11951 Freedom Drive, Suite 1200

Reston, Virginia 20190

with a copy to:

New Enterprise Associates 10, Limited Partnership

Attn: Louis Citron

1119 St. Paul Street

Baltimore, Maryland 21202

Sierra Ventures VII, L.P.

Sierra Ventures VIII-A, L.P.

Sierra Ventures VIII-B, L.P.

Sierra Ventures Associates VII, LLC, as nominee for its members

Sierra Ventures Associates VIII, LLC, as nominee for its members

Attn: Tim Guleri

2884 Sand Hill Road, Suite 100

Menlo Park, CA 94025

Sourcefire — Series D Co-Sale Agreement

 

 

Core Capital Partners, L.P.

Minotaur Funds, LLC

Minotaur Annex Fund, LLC

Attn: Pascal Luck

901 15th Street, NW

Suite 950

Washington, DC 20005

E. Wayne Jackson, III

6608 Corina Court

Columbia, MD 21044

Inflection Point Ventures II, L.P.

Inflection Point Ventures, L.P.

c/o Diane Messick

Delaware Technology Park

15 Innovation Way, Suite 280

Newark, DE 19711

Mark A. Frantz

In-Q-Tel Inc.

P.O. Box 12407

Arlington VA 22219

Frank A. Bonsal, Jr.

1119 St. Paul Street

Baltimore, MD 21202

Maryland Department of Business and Economic Development

217 E. Redwood Street

22nd Floor

Baltimore, MD 21202

Attn: Elizabeth Good

Big Basin Partners, L.P.

14510 Big Basin Way, #265

Saratoga, CA 95070

Attn: Frank Marshall

Asheem Chandna and Aarti Chandna, Trustees

of the Chandna Family Revocable Trust

of April 13, 1998

Attn: Asheem Chandna

1905 Oak Avenue

Menlo Park, California 94025

Sourcefire — Series D Co-Sale Agreement

 

 

EXHIBIT B

List of Key Holders

	1.	 	E. Wayne Jackson, III
	 
	2.	 	Thomas McDonough
	 
	3.	 	Martin Roesch
	 
	4.	 	John Pavlick
	 
	5.	 	Northcutt Family Revocable Living Trust of 2002

Sourcefire — Series D Co-Sale Agreementexv10w3

 

Exhibit 10.3

SOURCEFIRE, INC.

FOURTH AMENDED AND RESTATED STOCKHOLDERS’ VOTING AGREEMENT

     This Fourth Amended and Restated Stockholders’ Voting Agreement (this “Agreement”), dated as
of May 24, 2006, is entered into by and among Sourcefire, Inc. a Delaware corporation (the
“Company”), the individuals and entities listed on Exhibit A attached hereto (collectively,
the “Purchasers”), and the individuals and entities listed on Exhibit B (collectively, the
“Existing Stockholders”). The Purchasers and the Existing Stockholders are sometimes referred to
in this Agreement collectively as the “Stockholders.”

Recitals:

     WHEREAS, certain of the Purchasers are purchasing shares of the Company’s Series D
Convertible Preferred Stock, par value $0.001 per share (the “Series D Preferred Stock”), pursuant
to that certain Series D Convertible Preferred Stock Purchase Agreement, dated as of the date
hereof, by and among the Company and the parties identified therein (the “Purchase Agreement”);

     WHEREAS, the obligations in the Purchase Agreement are conditioned upon the execution
and delivery of this Agreement;

     WHEREAS, certain of the Purchasers (the “Initial Purchasers”) are holders of the
Company’s Series A Convertible Preferred Stock, par value $0.001 per share (the “Series A Preferred
Stock”), Series B Convertible Preferred Stock, par value $0.001 per share (the “Series B Preferred
Stock”), Series C Convertible Preferred Stock, par value $0.001 per share (the “Series C Preferred
Stock”, and together with the Series A Preferred Stock, the Series B Preferred Stock and the Series
D Preferred Stock, the “Preferred Stock”);

     WHEREAS, the Company, the Initial Purchasers and the Existing Stockholders are
parties to the Third Amended and Restated Stockholders’ Voting Agreement, dated as of January 15,
2004 (the “Prior Agreement”);

     WHEREAS, the Existing Stockholders are the beneficial owners of shares of the Common
Stock of the Company, par value $0.001 per share (the “Common Stock”);

     WHEREAS, the Prior Agreement can be amended with the written consent of (i) the
Company, (ii) those Initial Purchasers holding at least two-thirds of the outstanding shares of
Series A Preferred Stock, (iii) those Initial Purchasers holding at least sixty percent (60%) of
the outstanding shares of Series B Preferred Stock, (iv) those Initial Purchasers holding at least
a majority of the outstanding shares of Series C Preferred Stock, and (v) those Existing
Stockholders holding Shares (as defined in Section 2 below) representing at least a majority of the
outstanding Shares then held by those Existing Stockholders who are parties to the Prior Agreement;
and

     WHEREAS, the parties to the Prior Agreement desire to amend and restate the Prior
Agreement in its entirety and, together with the other parties hereto, desire to enter into this

 

 

Agreement in order to effect such amendment and restatement of the Prior Agreement and to
provide for the composition of the Board of Directors of the Company in the manner set forth below.

     NOW THERFORE, in consideration of the mutual covenants contained herein and the consummation
of the sale and purchase of the Series D Preferred Stock pursuant to the Purchase Agreement, and
for other good and valuable consideration, the receipt and sufficiency of which are hereby
acknowledged, the parties hereto agree as follows:

     1. Voting of Shares. In any and all elections of directors of the Company (whether at
a meeting of the stockholders or by written consent in lieu of a meeting), each Stockholder shall
vote or cause to be voted all Shares (as defined in Section 2 below) owned by such Stockholder and
all Shares over which such Stockholder has voting control, and otherwise use best efforts so as to
fix the number of directors of the Company at seven (7) and to vote as follows:

          (a) At each election of directors in which the holders of Series A Preferred Stock, voting as
a separate class, are entitled to elect directors of the Company, the Stockholders shall vote all
of their Shares so as to elect one (1) representative (the “Series A Director”) nominated by Sierra
Ventures so long as it holds any shares of Series A Preferred Stock, which individual shall
initially be Tim Guleri.

          (b) At each election of directors in which the holders of Series B Preferred Stock, voting as
a separate class, are entitled to elect directors of the Company, the Stockholders shall vote all
of their Shares so as to elect one (1) representative (the “Series B Director”) nominated by New
Enterprise Associates 10, Limited Partnership so long as it holds any shares of Series B Preferred
Stock, which individual shall initially be Harry Weller.

          (c) At each election of directors in which the holders of Common Stock, voting as a separate
class, are entitled to elect directors of the Company, the Stockholders shall vote all of their
Shares so as to elect two (2) individuals (the “Common Directors”), one (1) of whom shall be the
Company’s Chief Executive Officer, who shall initially be E. Wayne Jackson, III, and one (1) of
whom is an individual nominated by the holders of a majority of the Common Stock, who shall
initially be the Company’s Chief Technology Officer of the Company, Martin Roesch.

          (d) At each election of directors in which holders of shares of Preferred Stock and Common
Stock, voting together as a single class on an as-if-converted to Common Stock basis, are entitled
to elect directors of the Company, the Stockholders shall vote all of their Shares so as to elect
one (1) individual nominated and mutually acceptable to (i) the holders of at least two-thirds of
the Series A Preferred Stock then-outstanding, (ii) the holders of at least a sixty percent (60%)
of the Series B Preferred Stock then-outstanding, (iii) the holders of at least a majority of the
Series C Preferred Stock then-outstanding, and (iv) the holders of at least a majority of the
Series D Preferred Stock then-outstanding who shall be an independent industry representative not
affiliated with the Company or employed by the Company or any holders of

2

 

the Preferred Stock (the “First Independent Director”) and who shall initially be Asheem
Chandna.

          (e)

               (i) During the period commencing on the Initial Closing Date (as defined in the Purchase
Agreement) and ending on the earlier of (y) the election of a director pursuant to Section 1(e)(ii)
or (z) six (6) months after the Initial Closing Date, unless extended by a majority of the Board of
Directors (the “Designation Period”), and so long as Meritech Capital Partners III, L.P. and its
affiliates (collectively, “Meritech”) hold at least 227,092 shares of Series D Preferred Stock,
Meritech shall have the right to appoint one (1) representative (the “Series D Director”) nominated
by Meritech, who shall initially be Michael B. Gordon, and such individual shall serve as director
of the Company on a temporary basis for no longer that the Designation Period.

               (ii) After the Designation Period, at each election of directors in which holders of shares of
Preferred Stock and Common Stock, voting together as a single class, are entitled to elect
directors of the Company, and so long as Meritech holds at least 227,092 shares of Series D
Preferred Stock, the Stockholders shall vote all of their Shares so as to elect one (1) individual
designated by Meritech, who shall be an independent industry representative not affiliated with the
Company or employed by the Company or any holders of the Preferred Stock, and (ii) mutually
acceptable to (a) the holders of at least a majority of the Preferred Stock then-outstanding,
voting together as a separate class on an as-if-converted to Common Stock basis, and (b) the
holders of at least a majority of the Common Stock then-outstanding, voting as a separate class.

          (f) At each election of directors in which holders of shares of Preferred Stock and Common
Stock, voting together as a single class, are entitled to elect directors of the Company, the
Stockholders shall vote all of their Shares so as to elect one (1) individual nominated by the
majority of the Board of Directors, who shall be (i) an independent industry representative with
significant experience in finance or accounting or other comparable experience or background,
including a current or past position as a principal financial officer or other senior officer with
financial oversight responsibilities and who is not affiliated with the Company or employed by the
Company or any holders of the Preferred Stock, and (ii) mutually acceptable to (a) the holders of
at least a majority of the Preferred Stock then-outstanding, voting together as a separate class on
an as-if-converted to Common Stock basis, and (b) the holders of at least a majority of the Common
Stock then-outstanding, voting as a separate class (the “Financial Expert Independent Director”).

          (g) Action taken to remove the Series A Director elected pursuant to Section 1(a), or to fill
any vacancy created by the resignation or death of such director, shall be subject to the approval
of such nominating Purchaser in accordance with Section 1(a).

          (h) Action taken to remove the Series B Director elected pursuant to Section 1(b), or to fill
any vacancy created by the resignation or death of such director, shall be subject to the approval
of such nominating Purchaser in accordance with Section 1(b).

3

 

          (i) Action taken to remove any of the Common Directors elected pursuant to Section 1(c) or to
fill any vacancy created by the resignation or death of any of such directors, shall be subject to
the provisions of Section 1(c).

          (j) Action taken to remove the First Independent Director elected pursuant to Section 1(d) or
to fill any vacancy created by the resignation or death of such director, shall be subject to the
approval of such nominating Purchasers in accordance with Section 1(d).

          (k) Action taken to remove the Series D Director elected pursuant to Section 1(e) or to fill
any vacancy created by the resignation or death of such director, shall be subject to the approval
of Meritech in accordance with Section 1(e).

          (l) Action taken to remove the Financial Expert Independent Director elected pursuant to
Section 1(f) or to fill any vacancy created by the resignation or death of such director, shall be
subject to the provisions of Section 1(f).

          (m) The Company agrees to nominate and recommend for election as directors only the
individuals designated, or to be designated, pursuant to this Section 1.

     2. Shares. “Shares” shall mean and include any and all shares of capital stock of the
Company, by whatever name called, which carry voting rights (including voting rights which arise by
reason of default), and shall include any such shares of Common Stock or Preferred Stock now owned
or hereafter acquired by a Stockholder, however acquired, including without limitation stock splits
and stock dividends.

     3. Termination. This Agreement shall continue in full force and effect from the date
hereof through the earliest of the following dates, on which date it shall terminate in its
entirety:

          (a) the closing of a Company Sale (as defined in the Fourth Amended and Restated Investor
Rights Agreement of even date herewith among the Company and the Purchasers);

          (b) the closing of a Qualifying Public Offering (as defined in the Company’s Certificate of
Incorporation); or

          (c) the date on which (i) the Company, (ii) the holders of at least two-thirds of the Series A
Preferred Stock then-outstanding, (iii) the holders of at least sixty percent (60%) of the Series B
Preferred Stock then-outstanding, (iv) the holders of at least a majority of the Series C Preferred
Stock then-outstanding, and (v) the holders of at least a majority of the Series D Preferred Stock
then-outstanding agree in writing to terminate this Agreement.

     4. No Revocation. The voting agreements contained herein are coupled with an interest
and may not be revoked, except by an amendment, modification or termination effected in accordance
with Section 3 or 7(f) hereof. Nothing in this Section 4 shall be construed as limiting the
provisions of Section 3 or 7(f) hereof.

4

 

     5. Restrictive Legend. All certificates representing Shares owned or hereafter
acquired by the Stockholders or any transferee of the Stockholders shall have affixed thereto a
legend substantially in the following form:

“The shares of stock represented by this certificate are subject to
a Stockholders’ Voting Agreement, as may be amended from time to
time, which places certain restrictions on the voting of the shares
represented hereby. Any person accepting any interest in such shares shall be subject to all provisions of such agreement. A copy
of such agreement is available for inspection during normal business
hours at the principal executive office of this corporation.”

     6. Transfers of Rights. Any person or entity to which Shares are transferred by a
Stockholder, whether voluntarily or by operation of law, shall be bound by the voting obligations
imposed upon the transferor under this Agreement, to the same extent as if such transferee were a
Stockholder hereunder. No Stockholder shall transfer any Shares unless the transferee provides a
written instrument to the Company notifying the Company of such transfer and agreeing in writing to
be bound by the terms of this Agreement.

     7. General.

          (a) Severability. The invalidity or unenforceability of any provision of this
Agreement shall not affect the validity or enforceability of any other provision of this Agreement.

          (b) Specific Performance. In addition to any and all other remedies that may be
available at law in the event of any breach of this Agreement, each party hereto shall be entitled
to specific performance of the agreements and obligations of the Stockholders hereunder and to such
other injunctive or other equitable relief as may be granted by a court of competent jurisdiction.

          (c) Governing Law. This Agreement shall be governed by and construed in accordance
with the internal laws of the State of Delaware (without reference to the conflicts of law
provisions thereof). THE PARTIES TO THIS AGREEMENT HEREBY WAIVE THEIR RIGHT TO A TRIAL BY JURY
WITH RESPECT TO DISPUTES ARISING UNDER THIS AGREEMENT AND THE RELATED AGREEMENTS AND CONSENT TO A
BENCH TRIAL WITH THE APPROPRIATE JUDGE ACTING AS THE FINDER OF FACT.

          (d) Notices. All notices, requests, consents, and other communications under this
Agreement shall be in writing and shall be deemed delivered (i) upon personal delivery to the party
to be notified, (ii) when sent by confirmed electronic mail, or facsimile if sent during normal
business hours of the recipient, if not, then on the next business day, (iii) five (5) days after
having been sent by registered or certified mail, return receipt requested, postage prepaid, or
(iv) one (1) day after deposit with a nationally recognized overnight courier, specifying next

5

 

day delivery, with written verification of receipt, in each case to the intended recipient as
set forth below:

     If to the Company, at Sourcefire, Inc., 9770 Patuxent Woods Drive, Columbia, MD 21046,
Attention: General Counsel and Chief Financial Officer, or at such other address as may have been
furnished in writing by the Company to the other parties hereto, with a copy to Morrison & Foerster
LLP, 1650 Tysons Boulevard, Suite 300, McLean, Virginia 22102, Attention: Thomas J. Knox, Esq.;
and

     If to a Purchaser, at its address set forth on Exhibit A, or at such other address as
may have been furnished in writing by such Purchaser to the other parties hereto, with copies to
(i) Latham & Watkins LLP, 140 Scott Drive, Menlo Park, California 94025, Attention: Mark V.
Roeder, Esq., (ii) Weil, Gotshal & Manges LLP, 201 Redwood Shores Parkway, Redwood Shores,
California 94065, Attention: Richard S. Millard, Esq., (iii) Cooley Godward LLP, 11951 Freedom
Drive, Reston, Virginia 20190, Attention: Michael R. Lincoln, Esq.; and

     If to an Existing Stockholder, at the address set forth on Exhibit B, or at such other
address as may have been furnished in writing by such Existing Stockholder to the other parties
hereto.

          (e) Complete Agreement. This Agreement constitutes the entire agreement and
understanding of the parties hereto with respect to the subject matter hereof, and supersedes all
prior agreements and understandings relating to such subject matter.

          (f) Amendments and Waivers. This Agreement may be amended and the observance of any
term of this Agreement may be waived with respect to all parties to this Agreement (either
generally or in a particular instance and either retroactively or prospectively), with the written
consent of (i) the Company, (ii) the holders of at least two-thirds of the Series A Preferred Stock
then-outstanding, (iii) the holders of at least sixty percent (60%) of the Series B Preferred Stock
then-outstanding, (iv) the holders of at least a majority of the Series C Preferred Stock
then-outstanding, (v) the holders of at least a majority of the Series D Preferred Stock
then-outstanding, and (vi) those Existing Stockholders holding Shares representing at least a
majority of the outstanding Shares then held by the Existing Stockholders; provided,
however, Sections 1(e) and 1(k) and this Section 7(f) may not be waived or amended without
the prior written consent of Meritech. The Company shall give prompt written notice of any
amendment or waiver hereunder to any party hereto that did not consent in writing to such amendment
or waiver. Any amendment, termination or waiver effected in accordance with this Section 7(f)
shall be binding on all parties hereto, even if they do not execute such consent. No waivers of or
exceptions to any term, condition or provision of this Agreement, in any one or more instances,
shall be deemed to be, or construed as, a further or continuing waiver of any such term, condition
or provision.

          (g) Pronouns. Whenever the context may require, any pronouns used in this Agreement
shall include the corresponding masculine, feminine or neuter forms, and the singular form of nouns
and pronouns shall include the plural, and vice versa.

6

 

          (h) Counterparts; Facsimile Signatures. This Agreement may be executed in any number
of counterparts each of which shall be deemed to be an original, and all of which together shall
constitute one and the same document. This Agreement may be executed by facsimile signatures.

          (i) Section Headings and References. The section headings are for the convenience of
the parties and in no way alter, modify, amend, limit or restrict the contractual obligations of
the parties. Any reference in this Agreement to a particular section or subsection shall refer to
a section or subsection of this Agreement, unless specified otherwise.

          (j) Attorneys’ Fees. In the event that any suit or action is instituted under or in
relation to this Agreement, including without limitation to enforce any provision in this
Agreement, the prevailing party in such dispute shall be entitled to recover from the losing party
all fees, costs and expenses of enforcing any right of such prevailing party under or with respect
to this Agreement, including without limitation, such reasonable fees and expenses of attorneys and
accountants, which shall include, without limitation, all fees, costs and expenses of appeals.

          (k) Amendment of Prior Agreement. The Prior Agreement is hereby amended and
superseded in its entirety and restated herein. All provisions of, rights granted and covenants
made in the Prior Agreement are hereby waived, released and superseded in their entirety and shall
have no further force or effect.

{Signatures on Following Page}

7

 

     IN WITNESS WHEREOF, this Fourth Amended and Restated Stockholders’ Voting Agreement has been
executed by the parties hereto as of the day and year first above written.

	 	 	 	 	 	 	 
	 	 	COMPANY:	 	 
	 
	 	 	 	 	 	 
	 	 	SOURCEFIRE, INC.	 	 
	 
	 	 	 	 	 	 
	 

	 	By:	 	/s/  E. Wayne Jackson, III	 	
	 

	 	 	 	 	 	 
	 	 	Name: E. Wayne Jackson, III	 	 
	 	 	Title: Chief Executive Officer	 	 

	 	 	 	 	 	 	 
	 	 	EXISTING STOCKHOLDERS:	 	 
	 
	 	 	 	 	 	 
	 
	 	 	 	 	 	 
	 

	 	By:	 	/s/  E. Wayne Jackson, III	 	
	 	 	 	 	 
	 	 	E. Wayne Jackson, III	 	 
	 
	 	 	 	 	 	 
	 
	 	 	 	 	 	 
	 

	 	By:	 	/s/  Thomas
McDonough	 	
	 	 	 	 	 
	 	 	Thomas McDonough	 	 
	 
	 	 	 	 	 	 
	 
	 	 	 	 	 	 
	 

	 	By:	 	/s/  Martin Roesch	 	
	 	 	 	 	 
	 	 	Martin Roesch	 	 
	 
	 	 	 	 	 	 
	 
	 	 	 	 	 	 
	 	 	 	 	 
	 	 	John Pavlick	 	 
	 
	 	 	 	 	 	 
	 	 	Stephen Northcutt and Jo-Kathlyn Northcutt,	 	 
	 	 	Co-Trustees, Northcutt Family Revocable Living Trust of 2002	 	 
	 
	 	 	 	 	 	 
	 

	 	By:	 	 	 	 
	 	 	 	 	 	 	 
	 	 	Stephen Northcutt,
Co-Trustee	 	 
	 
	 	 	 	 	 	 
	 

	 	By:	 	 	 	 
	 	 	 	 	 	 	 
	 	 	Kathlyn Northcutt,
Co-Trustee	 	 

Sourcefire — Series D Voting Agreement

 

 

	 	 	 	 	 	 	 
	 	 	SERIES D PURCHASERS:	 	 
	 
	 	 	 	 	 	 
	 	 	Meritech Capital Partners III L.P.	 	 
	 
	 	 	 	 	 	 
	 

	 	By:
	 	Meritech Capital Associates III L.L.C. 

its General Partner	 	 
	 
	 	 	 	 	 	 
	 

	 	By:
	 	Meritech Management Associates III L.L.C.

a managing member	 	 
	 
	 	 	 	 	 	 
	 

	 	By:	 	/s/  Michael B. Gordon	 	 
	 	 	 	 	 	 	 
	 

	 	 	 	Michael B. Gordon, a managing member	 	 
	 
	 	 	 	 	 	 
	 	 	Meritech Capital Affiliates III L.P.	 	 
	 
	 	 	 	 	 	 
	 

	 	By:
	 	Meritech Capital Associates III L.L.C.

its General Partner	 	 
	 
	 	 	 	 	 	 
	 

	 	By:
	 	Meritech Management Associates III L.L.C.

a managing member	 	 
	 
	 	 	 	 	 	 
	 

	 	By:	 	/s/  Michael B. Gordon	 	 
	 	 	 	 	 	 	 
	 

	 	 	 	Michael B. Gordon, a managing member	 	 

Sourcefire — Series D Voting Agreement

 

 

	 	 	 	 	 	 	 
	 	 	SEQUOIA CAPITAL FRANCHISE FUND

SEQUOIA CAPITAL FRANCHISE PARTNERS	 	 
	 
	 	 	 	 	 	 
	 	 	By: SCFF Management, LLC

a Delaware Limited Liability Company

General Partner of Each	 	 
	 
	 	 	 	 	 	 
	 

	 	By:	 	/s/ Michael Moritz	 	 
	 	 	 	 	 	 	 
	 

	 	 	 	Managing Member	 	 

Sourcefire — Series D Voting Agreement

 

 

	 	 	 	 	 	 	 
	 	 	NEW ENTERPRISE ASSOCIATES 10, LIMITED	 	 
	 
	 	 	 	 	 	 
	 	 	PARTNERSHIP	 	 
	 
	 	 	 	 	 	 
	 	 	By: NEA Partners 10, Limited Partnership	 	 
	 
	 	 	 	 	 	 
	 

	 	By:	 	/s/  Charles W. Newhall
III	 	 
	 	 	 	 	 	 	 
	 	 	Name: Charles W.
Newhall III	 	 
	 	 	Title: General Partner	 	 
	 
	 	 	 	 	 	 
	 
	 	 	 	 	 	 
	 	 	 	 	 
	 	 	MARK A. FRANTZ	 	 

Sourcefire — Series D Voting Agreement

 

 

	 	 	 	 	 	 	 
	 	 	SIERRA VENTURES VIII-A, L.P.	 	 
	 
	 	 	 	 	 	 
	 

	 	By:	 	/s/ Tim Guleri	 	 
	 	 	 	 	 	 	 
	 	 	Name: Tim Guleri	 	 
	 	 	Title: Manager	 	 
	 	 	on behalf of Sierra Ventures Associates VIII, LLC

the General Partner of Sierra Ventures VIII-A, L.P.	 	 
	 
	 	 	 	 	 	 
	 	 	SIERRA VENTURES VIII-B, L.P.	 	 
	 
	 	 	 	 	 	 
	 

	 	By:	 	/s/ Tim Guleri	 	 
	 	 	 	 	 	 	 
	 	 	Name: Tim Guleri	 	 
	 	 	Title: Manager	 	 
	 	 	on behalf of Sierra Ventures Associates VIII, LLC

the General Partner of Sierra Ventures VIII-B, L.P.	 	 
	 
	 	 	 	 	 	 
	 	 	SIERRA VENTURES ASSOCIATES VIII, L.L.C.,

  as nominee for its members:	 	 
	 
	 	 	 	 	 	 
	 

	 	By:	 	/s/ Tim Guleri	 	 
	 	 	 	 	 	 	 
	 	 	Name: Tim Guleri	 	 
	 	 	Title: Manager	 	 
	 
	 	 	 	 	 	 
	 	 	SIERRA VENTURES VII, L.P.	 	 
	 
	 	 	 	 	 	 
	 

	 	By:	 	/s/ David C. Schwab	 	 
	 	 	 	 	 	 	 
	 	 	Name: David C. Schwab	 	 
	 	 	Title: Manager	 	 
	 	 	on behalf of Sierra Ventures Associates VII, LLC 

the
General Partner of Sierra Ventures VII, L.P.	 	 
	 
	 	 	 	 	 	 
	 	 	SIERRA VENTURES ASSOCIATES VII, L.L.C.,

  as nominee for its members	 	 
	 
	 	 	 	 	 	 
	 

	 	By:	 	/s/ David C. Schwab	 	 
	 	 	 	 	 	 	 
	 	 	Name: David C. Schwab	 	 
	 	 	Title: Manager	 	 

Sourcefire — Series D Voting Agreement

 

 

	 	 	 	 	 	 	 
	 	 	CORE CAPITAL PARTNERS, L.P.	 	 
	 
	 	 	 	 	 	 
	 

	 	By:	 	/s/ Pascal Luck	 	 
	 

	 	 	 	 	 	 
	 

	 	Name:	 	Pascal Luck	 	 
	 

	 	Title:	 	Managing Director	 	 
	 
	 	 	 	 	 	 
	 	 	MINOTAUR LLC	 	 
	 
	 	 	 	 	 	 
	 

	 	By:	 	/s/ Mark Levine	 	 
	 

	 	 	 	 	 	 
	 

	 	Name:	 	Mark Levine	 	 
	 

	 	Title:	 	Managing Member	 	 
	 
	 	 	 	 	 	 
	 	 	MINOTAUR ANNEX LLC	 	 
	 
	 	 	 	 	 	 
	 

	 	By:	 	/s/ Mark Levine	 	 
	 

	 	 	 	 	 	 
	 

	 	Name:	 	Mark Levine	 	 
	 

	 	Title:	 	Managing Member	 	 
	 
	 	 	 	 	 	 
	 	 	INFLECTION POINT VENTURES, L.P.	 	 
	 	 	By: Inflection Point Associates, L.P.	 	 
	 
	 	 	 	 	 	 
	 
	 	/s/ Timothy Webb	 	 
	 	 	 	 	 
	 	 	By: Inflection Point Management, LLC	 	 
	 	 	Its: General Partner	 	 
	 
	 	 	 	 	 	 
	 

	 	Name:	 	Timothy Webb	 	 
	 

	 	 	 	 	 	 
	 
	 	 	 	 	 	 
	 

	 	Title:	 	Authorized Manager	 	 
	 

	 	 	 	 	 	 
	 
	 	 	 	 	 	 
	 	 	INFLECTION POINT VENTURES II, L.P.	 	 
	 
	 	 	 	 	 	 
	 
	 	/s/ Timothy Webb	 	 
	 	 	 	 	 
	 	 	By: Inflection Point SBIC Associates LLC	 	 
	 	 	Its: General Partner	 	 
	 
	 	 	 	 	 	 
	 

	 	Name:	 	Timothy Webb	 	 
	 

	 	 	 	 	 	 
	 
	 	 	 	 	 	 
	 

	 	Title:	 	Authorized Manager	 	 
	 

	 	 	 	 	 	 

Sourcefire — Series D Voting Agreement

 

 

	 	 	 	 	 	 	 
	 	 	SERIES C PURCHASERS	 	 
	 
	 	 	 	 	 	 
	 	 	SEQUOIA CAPITAL FRANCHISE FUND	 	 
	 	 	SEQUOIA CAPITAL FRANCHISE PARTNERS	 	 
	 
	 	 	 	 	 	 
	 	 	By: SCFF Management, LLC	 	 
	 	 	a Delaware Limited Liability Company	 	 
	 	 	General Partner of Each	 	 
	 
	 	 	 	 	 	 
	 

	 	By:	 	/s/  Douglas Leone	 	 
	 

	 	 	 	 	 	 
	 

	 	 	 	Managing Member	 	 
	 
	 	 	 	 	 	 
	 	 	NEW ENTERPRISE ASSOCIATES 10, LIMITED PARTNERSHIP	 	 
	 
	 	 	 	 	 	 
	 	 	By: NEA Partners 10, Limited Partnership	 	 
	 
	 	 	 	 	 	 
	 

	 	By:	 	/s/ Charles W. Newhall III	 	 
	 

	 	 	 	 	 	 
	 

	 	Name:	 	Charles W. Newhall	 	 
	 

	 	Title:
	 	General Partner	 	 
	 
	 	 	 	 	 	 
	 	 	BIG BASIN PARTNERS, L.P.	 	 
	 
	 	 	 	 	 	 
	 

	 	By:	 	 	 	 
	 

	 	 	 	 	 	 
	 

	 	 	 	Frank Marshall	 	 
	 

	 	Its:
	 	General Partner	 	 

Sourcefire — Series D Voting Agreement

 

 

	 	 	 	 	 	 	 
	 	 	SIERRA VENTURES VII, L.P.	 	 
	 
	 	 	 	 	 	 
	 

	 	By:	 	/s/ David C. Schwab	 	 
	 

	 	 	 	 	 	 
	 

	 	Name:
	 	David C. Schwab	 	 
	 

	 	Title:
	 	Manager	 	 
	 
	 	 	 	 	 	 
	 	 	on behalf of Sierra Ventures Associates VII, L.L.C.,	 	 
	 	 	the General Partner of Sierra Ventures VII, L.P.	 	 
	 
	 	 	 	 	 	 
	 	 	SIERRA VENTURES VIII-A, L.P.	 	 
	 
	 	 	 	 	 	 
	 

	 	By:	 	/s/ Tim Guleri	 	 
	 

	 	 	 	 	 	 
	 

	 	Name:
	 	Tim Guleri	 	 
	 

	 	Title:
	 	Manager	 	 
	 
	 	 	 	 	 	 
	 	 	on behalf of Sierra Ventures Associates VIII, L.L.C.,	 	 
	 	 	the General Partner of Sierra Ventures VIII-A, L.P.	 	 
	 
	 	 	 	 	 	 
	 	 	SIERRA VENTURES VIII-B, L.P.	 	 
	 
	 	 	 	 	 	 
	 

	 	By:	 	/s/ Tim Guleri	 	 
	 

	 	 	 	 	 	 
	 

	 	Name:
	 	Tim Guleri	 	 
	 

	 	Title:
	 	Manager	 	 
	 
	 	 	 	 	 	 
	 	 	on behalf of Sierra Ventures Associates VIII, L.L.C.,	 	 
	 	 	the General Partner of Sierra Ventures VIII-B, L.P.	 	 
	 
	 	 	 	 	 	 
	 	 	SIERRA VENTURES ASSOCIATES VII, L.L.C.,	 	 
	 	 	     as nominee for its members	 	 
	 
	 	 	 	 	 	 
	 

	 	By:	 	/s/ David C. Schwab	 	 
	 

	 	 	 	 	 	 
	 

	 	Name:
	 	David C. Schwab	 	 
	 

	 	Title:
	 	Manager	 	 
	 
	 	 	 	 	 	 
	 	 	SIERRA VENTURES ASSOCIATES VIII, L.L.C.,	 	 
	 	 	     as nominee for its members	 	 
	 
	 	 	 	 	 	 
	 

	 	By:	 	/s/ Tim Guleri	 	 
	 

	 	 	 	 	 	 
	 

	 	Name:
	 	Tim Guleri	 	 
	 

	 	Title:
	 	Manager	 	 

Sourcefire — Series D Voting Agreement

 

 

	 	 	 	 	 	 	 
	 	 	CORE CAPITAL PARTNERS, L.P.	 	 
	 
	 	 	 	 	 	 
	 

	 	By:	 	/s/ Pascal Luck	 	 
	 

	 	 	 	 	 	 
	 

	 	Name:
	 	Pascal Luck	 	 
	 

	 	Title:
	 	Managing Director	 	 
	 
	 	 	 	 	 	 
	 	 	MINOTAUR FUNDS, LLC	 	 
	 
	 	 	 	 	 	 
	 

	 	By:	 	/s/ Mark Levine	 	 
	 

	 	 	 	 	 	 
	 

	 	Name:
	 	Mark Levine	 	 
	 

	 	Title:
	 	Managing Member	 	 
	 
	 	 	 	 	 	 
	 	 	INFLECTION POINT VENTURES, L.P.	 	 
	 
	 	 	 	 	 	 
	 	 	By: Inflection Point Associates, L.P.	 	 
	 
	 	/s/ Timothy Webb	 	 
	 	 	 	 	 
	 	 	By: Inflection Point Management LLC	 	 
	 	 	Its: General Partner	 	 
	 

	 	Name:	 	Timothy Webb	 	 
	 

	 	Title:
	 	Authorized Manager	 	 
	 
	 	 	 	 	 	 
	 	 	INFLECTION POINT VENTURES II, L.P.	 	 
	 
	 	/s/ Timothy Webb	 	 
	 	 	 	 	 
	 	 	By: Inflection Point SBIC Associates LLC	 	 
	 	 	Its: General Partner	 	 
	 

	 	Name:
	 	Timothy Webb	 	 
	 

	 	Title:
	 	Authorized Manager	 	 
	 
	 	/s/ MARK A. FRANTZ	 	 
	 	 	 	 	 
	 	 	MARK A. FRANTZ	 	 
	 
	 	 	 	 	 	 
	 	 	 	 	 
	 	 	FRANK A. BONSAL, JR.	 	 
	 
	 	 	 	 	 	 
	 	 	Asheem Chandna and Aarti Chandna, as	 	 
	 	 	Trustees of the Chandna Family Revocable	 	 
	 	 	Trust as of April 13, 1998	 	 
	 
	 	 	 	 	 	 
	 

	 	By:	 	/s/ ASHEEM CHANDNA	 	 
	 

	 	 	 	 	 	 
	 

	 	 	 	ASHEEM CHANDNA	 	 
	 

	 	By:	 	/s/ AARTI CHANDNA	 	 
	 

	 	 	 	 	 	 
	 

	 	 	 	AARTI CHANDNA	 	 

Sourcefire — Series D Voting Agreement

 

 

	 	 	 	 	 	 	 
	 	 	SERIES B PURCHASERS:	 	 
	 
	 	 	 	 	 	 
	 	 	NEW ENTERPRISE ASSOCIATES 10, LIMITED	 	 
	 	 	  PARTNERSHIP	 	 
	 
	 	 	 	 	 	 
	 	 	By: NEA Partners 10, Limited Partnership	 	 
	 
	 	 	 	 	 	 
	 

	 	By:	 	/s/ Charles W. Newhall III	 	 
	 

	 	 	 	 	 	 
	 

	 	Name:	 	Charles W. Newhall III	 	 
	 

	 	Title:
	 	General Partner	 	 
	 
	 	 	 	 	 	 
	 	 	NEA VENTURES 2003,
LIMITED PARTNERSHIP	 	 
	 
	 	 	 	 	 	 
	 

	 	By:	 	/s/ Pamela J. Clark	 	 
	 

	 	 	 	 	 	 
	 

	 	Name:	 	Pamela J. Clark	 	 
	 

	 	Title:	 	Vice President	 	 
	 
	 	 	 	 	 	 
	 	 	BIG BASIN PARTNERS, L.P.	 	 
	 
	 	 	 	 	 	 
	 

	 	By:	 	 	 	 
	 

	 	 	 	 	 	 
	 

	 	 	 	Frank Marshall	 	 
	 

	 	Its:
	 	General Partner	 	 

Sourcefire — Series D Voting Agreement

 

 

	 	 	 	 	 	 	 
	 	 	SIERRA VENTURES VII, L.P.	 	 
	 
	 	 	 	 	 	 
	 

	 	By:	 	/s/ David C. Schwab	 	 
	 

	 	 	 	 	 	 
	 

	 	Name:
	 	David C. Schwab	 	 
	 

	 	Title:
	 	Manager	 	 
	 
	 	 	 	 	 	 
	 	 	on behalf of Sierra Ventures Associates VII, L.L.C.,	 	 
	 	 	the General Partner of Sierra Ventures VII, L.P.	 	 
	 
	 	 	 	 	 	 
	 	 	SIERRA VENTURES VIII-A, L.P.	 	 
	 
	 	 	 	 	 	 
	 

	 	By:	 	/s/ Tim Guleri	 	 
	 

	 	 	 	 	 	 
	 

	 	Name:
	 	Tim Guleri	 	 
	 

	 	Title:
	 	Manager	 	 
	 
	 	 	 	 	 	 
	 	 	on behalf of Sierra Ventures Associates VIII, L.L.C.,	 	 
	 	 	the General Partner of Sierra Ventures VIII-A, L.P.	 	 
	 
	 	 	 	 	 	 
	 	 	SIERRA VENTURES VIII-B, L.P.	 	 
	 
	 	 	 	 	 	 
	 

	 	By:	 	/s/ Tim Guleri	 	 
	 

	 	 	 	 	 	 
	 

	 	Name:
	 	Tim Guleri	 	 
	 

	 	Title:
	 	Manager	 	 
	 
	 	 	 	 	 	 
	 	 	on behalf of Sierra Ventures Associates VIII, L.L.C.,	 	 
	 	 	the General Partner of Sierra Ventures VIII-B, L.P.	 	 
	 
	 	 	 	 	 	 
	 	 	SIERRA VENTURES ASSOCIATES VII, L.L.C.,	 	 
	 	 	     as nominee for its members	 	 
	 
	 	 	 	 	 	 
	 

	 	By:	 	/s/ David C. Schwab	 	 
	 

	 	 	 	 	 	 
	 

	 	Name:
	 	David C. Schwab	 	 
	 

	 	Title:
	 	Manager	 	 
	 
	 	 	 	 	 	 
	 	 	SIERRA VENTURES ASSOCIATES VIII, L.L.C.,	 	 
	 	 	     as nominee for its members	 	 
	 
	 	 	 	 	 	 
	 

	 	By:	 	/s/ Tim Guleri	 	 
	 

	 	 	 	 	 	 
	 

	 	Name:
	 	Tim Guleri	 	 
	 

	 	Title:
	 	Manager	 	 

Sourcefire — Series D Voting Agreement

 

 

	 	 	 	 	 	 	 
	 	 	CORE CAPITAL PARTNERS, L.P.	 	 
	 
	 	 	 	 	 	 
	 

	 	By:	 	/s/ Pascal Luck	 	 
	 

	 	 	 	 	 	 
	 

	 	Name:
	 	Pascal Luck	 	 
	 

	 	Title:
	 	Managing Director	 	 
	 
	 	 	 	 	 	 
	 	 	MINOTAUR FUNDS, LLC	 	 
	 
	 	 	 	 	 	 
	 

	 	By:	 	/s/ Mark Levine	 	 
	 

	 	 	 	 	 	 
	 

	 	Name:
	 	Mark Levine	 	 
	 

	 	Title:
	 	Managing Member	 	 
	 
	 	 	 	 	 	 
	 	 	INFLECTION POINT VENTURES, L.P.	 	 
	 
	 	 	 	 	 	 
	 	 	By: Inflection Point Associates, L.P.	 	 
	 
	 	/s/ Timothy Webb	 	 
	 	 	 	 	 
	 	 	By: Inflection Point Management LLC	 	 
	 	 	Its: General Partner	 	 
	 

	 	Name:
	 	Timothy Webb	 	 
	 

	 	Title:
	 	Authorized Manager	 	 
	 
	 	 	 	 	 	 
	 	 	INFLECTION POINT VENTURES II, L.P.	 	 
	 
	 	/s/ Timothy Webb	 	 
	 	 	 	 	 
	 	 	By: Inflection Point SBIC Associates LLC	 	 
	 	 	Its: General Partner	 	 
	 

	 	Name:
	 	Timothy Webb	 	 
	 

	 	Title:
	 	Authorized Manager	 	 
	 
	 	/s/ MARK A. FRANTZ	 	 
	 	 	 	 	 
	 	 	MARK A. FRANTZ	 	 
	 
	 	 	 	 	 	 
	 	 	 	 	 
	 	 	FRANK A. BONSAL, JR.	 	 

Sourcefire — Series D Voting Agreement

 

 

	 	 	 	 	 	 	 
	 	 	SERIES A PURCHASERS:	 	 
	 
	 	 	 	 	 	 
	 	 	SIERRA VENTURES VII, L.P.	 	 
	 
	 	 	 	 	 	 
	 

	 	By:	 	/s/ David C. Schwab	 	 
	 

	 	 	 	 	 	 
	 

	 	Name:
	 	David C. Schwab	 	 
	 

	 	Title:
	 	Manager	 	 
	 
	 	 	 	 	 	 
	 	 	on behalf of Sierra Ventures Associates VII, L.L.C.,	 	 
	 	 	the General Partner of Sierra Ventures VII, L.P.	 	 
	 
	 	 	 	 	 	 
	 	 	SIERRA VENTURES VIII-A, L.P.	 	 
	 
	 	 	 	 	 	 
	 

	 	By:	 	/s/ Tim Guleri	 	 
	 

	 	 	 	 	 	 
	 

	 	Name:
	 	Tim Guleri	 	 
	 

	 	Title:
	 	Manager	 	 
	 
	 	 	 	 	 	 
	 	 	on behalf of Sierra Ventures Associates VIII, L.L.C.,	 	 
	 	 	the General Partner of Sierra Ventures VIII-A, L.P.	 	 
	 
	 	 	 	 	 	 
	 	 	SIERRA VENTURES VIII-B, L.P.	 	 
	 
	 	 	 	 	 	 
	 

	 	By:	 	/s/ Tim Guleri	 	 
	 

	 	 	 	 	 	 
	 

	 	Name:
	 	Tim Guleri	 	 
	 

	 	Title:
	 	Manager	 	 
	 
	 	 	 	 	 	 
	 	 	on behalf of Sierra Ventures Associates VIII, L.L.C.,	 	 
	 	 	the General Partner of Sierra Ventures VIII-B, L.P.	 	 
	 
	 	 	 	 	 	 
	 	 	SIERRA VENTURES ASSOCIATES VII, L.L.C.,	 	 
	 	 	     as nominee for its members	 	 
	 
	 	 	 	 	 	 
	 

	 	By:	 	/s/ David C. Schwab	 	 
	 

	 	 	 	 	 	 
	 

	 	Name:
	 	David C. Schwab	 	 
	 

	 	Title:
	 	Manager	 	 
	 
	 	 	 	 	 	 
	 	 	SIERRA VENTURES ASSOCIATES VIII, L.L.C.,	 	 
	 	 	     as nominee for its members	 	 
	 
	 	 	 	 	 	 
	 

	 	By:	 	/s/ Tim Guleri	 	 
	 

	 	 	 	 	 	 
	 

	 	Name:
	 	Tim Guleri	 	 
	 

	 	Title:
	 	Manager	 	 
	 
	 	 	 	 	 	 
	 	 	CORE CAPITAL PARTNERS, L.P.	 	 

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	 	By:	 	/s/ Pascal Luck	 	 
	 

	 	 	 	 	 	 
	 

	 	Name:
	 	Pascal Luck	 	 
	 

	 	Title:
	 	Managing Director	 	 
	 
	 	 	 	 	 	 
	 	 	MINOTAUR FUNDS, LLC	 	 
	 
	 	 	 	 	 	 
	 

	 	By:	 	/s/ Mark Levine	 	 
	 

	 	 	 	 	 	 
	 

	 	Name:
	 	Mark Levine	 	 
	 

	 	Title:
	 	Managing Member	 	 
	 
	 	 	 	 	 	 
	 	 	INFLECTION POINT VENTURES, L.P.	 	 
	 
	 	 	 	 	 	 
	 	 	By: Inflection Point Associates, L.P.	 	 
	 
	 	/s/ Timothy Webb	 	 
	 	 	 	 	 
	 	 	By: Inflection Point Management LLC	 	 
	 	 	Its: General Partner	 	 
	 

	 	Name:
	 	Timothy Webb	 	 
	 

	 	Title:
	 	Authorized Manager	 	 
	 
	 	 	 	 	 	 
	 	 	INFLECTION POINT VENTURES II, L.P.	 	 
	 
	 	/s/ Timothy Webb	 	 
	 	 	 	 	 
	 	 	By: Inflection Point SBIC Associates LLC	 	 
	 	 	Its: General Partner	 	 
	 

	 	Name:
	 	Timothy Webb	 	 
	 

	 	Title:
	 	Authorized Manager	 	 
	 
	 	/s/ E. WAYNE JACKSON, III	 	 
	 	 	 	 	 
	 	 	E. WAYNE JACKSON, III	 	 
	 
	 	 	 	 	 	 
	 	 	MARYLAND DEPARTMENT OF BUSINESS AND ECONOMIC DEVELOPMENT	 	 
	 
	 	 	 	 	 	 
	 

	 	By:	 	/s/ Aris Melissaratos	 	 
	 

	 	 	 	 	 	 
	 

	 	Name:
	 	Aris Melissaratos	 	 
	 

	 	Its:
	 	Secretary	 	 

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	 	 	BIG BASIN PARTNERS, L.P.	 	 
	 
	 	 	 	 	 	 
	 

	 	By:	 	 	 	 
	 

	 	 	 	 	 	 
	 

	 	 	 	Frank Marshall	 	 
	 

	 	Its:
	 	General Partner	 	 
	 
	 	 	 	 	 	 
	 	 	Asheem Chandna and Aarti Chandna, as	 	 
	 	 	Trustees of the Chandna Family Revocable	 	 
	 	 	Trust as of April 13, 1998	 	 
	 
	 	 	 	 	 	 
	 

	 	By:	 	/s/ ASHEEM CHANDNA	 	 
	 

	 	 	 	 	 	 
	 

	 	 	 	ASHEEM CHANDNA	 	 
	 
	 	 	 	 	 	 
	 

	 	By:	 	/s/ AARTI CHANDNA	 	 
	 

	 	 	 	 	 	 
	 

	 	 	 	AARTI CHANDNA	 	 

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EXHIBIT A

List of Purchasers

Name and Address

Meritech Capital Partners III, L.P.

285 Hamilton Avenue

Suite 200

Palo Alto, CA 94301

Meritech Capital Affiliates III L.P.

285 Hamilton Avenue

Suite 200

Palo Alto, CA 94301

Sequoia Capital Franchise Fund &

Sequoia Capital Franchise Partners

3000 Sand Hill Road

Building 4, Suite 180

Menlo Park, California 94025

New Enterprise Associates 10, Limited Partnership

New Ventures 2003, Limited Partnership

Attn: Harry Weller

11951 Freedom Drive, Suite 1200

Reston, Virginia 20190

with a copy to:

NEA Ventures 2003, Limited Partnership

Attn: Louis Citron

1119 St. Paul Street

Baltimore, Maryland 21202

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Sierra Ventures VII, L.P.

Sierra Ventures VIII-A, L.P.

Sierra Ventures VIII-B, L.P.

Sierra Ventures Associates VII, LLC, as nominee for its members

Sierra Ventures Associates VIII, LLC, as nominee for its members

Attn: Tim Guleri

2884 Sand Hill Road, Suite 100

Menlo Park, California 94025

Core Capital Partners, L.P.

Minotaur Funds, LLC

Minotaur Annex Fund, LLC

Attn: Pascal Luck

901 15th Street, NW

Suite 950

Washington, DC 20005

E. Wayne Jackson, III

6608 Corina Court

Columbia, Maryland 21044

Inflection Point Ventures II, L.P.

Inflection Point Ventures, L.P.

c/o Diane Messick

Delaware Technology Park

15 Innovation Way, Suite 280

Newark, Delaware 19711

Maryland Department of Business and Economic Development

217 E. Redwood Street

22nd Floor

Baltimore, Maryland 21202

Attn: Elizabeth Good

Big Basin Partners, L.P.

14585 Big Basin Way

Saratoga, California 95070

Attn: Frank Marshall

Mark A. Frantz

The Carlyle Group

1001 Pennsylvania Avenue, NW

Washington, D.C. 20004

Frank A. Bonsal, Jr.

1119 St. Paul Street

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Baltimore, Maryland 21202

Asheem Chandna and Aarti Chandna, Trustees

of the Chandna Family Revocable Trust

of April 13, 1998

Attn: Asheem Chandna

1905 Oak Avenue

Menlo Park, California 94025

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EXHIBIT B

List of Existing Stockholders

	1.	 	E. Wayne Jackson, III
	 
	2.	 	Thomas McDonough
	 
	3.	 	Martin Roesch
	 
	4.	 	John Pavlick
	 
	5.	 	Stephen Northcutt and Jo-Kathlyn Northcutt,
Co-Trustees, Northcutt Family Revocable Living Trust of 2002

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