Document:

Exhibit 10.5

FORM OF

DEFERRED SHARES AGREEMENT

This AGREEMENT (the
“Agreement”) is made as of            ,
200   (the “Date of Grant”) by and between GEORGIA GULF CORPORATION,
a Delaware corporation (the “Company”), and           
(the “Grantee”).

1.                 Grant of Deferred Shares.   Subject to
and upon the terms, conditions, and restrictions set forth in this Agreement
and in the Company’s Amended and Restated 2002 Equity and Performance Incentive
Plan (the “Plan”), the Company hereby grants to the Grantee as of the Date of
Grant       Deferred Shares. Each Deferred Share shall
represent the right to reserve one share of Common Stock.

2.                 Restrictions on Transfer of Deferred Shares.   The
Deferred Shares may not be transferred, sold, pledged, exchanged, assigned or
otherwise encumbered or disposed of by the Grantee, except to the Company,
until they have become nonforfeitable in accordance with Section 3. Any
purported transfer, encumbrance or other disposition of the Deferred Shares
that is in violation of this Section 2 shall be null and void, and the
other party to any such purported transaction shall not obtain any rights to or
interest in the Deferred Shares.

3.                 Vesting of Deferred Shares.

a.                 The Deferred
Shares specified in this Agreement shall become nonforfeitable on the one year
anniversary of the Date of Grant if the Grantee shall have remained a member of
the Board during that one (1) year period.

b.                Notwithstanding
the provisions of Section 3(a), all of the Deferred Shares shall
immediately become nonforfeitable in the event of a Change in Control.

4.                 Forfeiture of Deferred Shares.   Subject
to Section 3(b), and except as the Compensation Committee may determine on
a case-by-case basis, any Deferred Shares that have not theretofore become
nonforfeitable shall be forfeited if the Grantee’s service as a non-employee
Director is terminated prior to the first anniversary of the Date of Grant by
the Board in accordance with the bylaws of the Company.

5.                 Payment of Deferred Shares.   Upon the
Grantee’s retirement or other termination of service from the Board for any
reason, shares of Common Stock underlying the Deferred Shares that have become
nonforfeitable shall be transferred to the Grantee, except as otherwise
provided in Section 7.

6.                 Dividend, Voting and Other Rights.   The
Grantee shall have no rights of ownership in the Deferred Shares and shall have
no right to vote them until the date on which the shares of Common Stock are
transferred to the Grantee pursuant to Section 5 above and a stock
certificate (or certificates) representing such shares of Common Stock are
issued to the Grantee. From and after the Date of Grant and until the earlier
of (a) the time when the Grantee receives the shares of Common Stock
underlying the Deferred Shares in accordance with Section 5 hereof or (b) the
time when the Grantee’s right to receive the Deferred Shares is forfeited in
accordance with Section 4 hereof, the Company shall pay to the Grantee,
whenever a normal cash dividend is paid on shares of Common Stock, an amount of
cash equal to the product of the per-share amount of the dividend paid times
the number of such Deferred Shares.

7.                 Retention of Deferred Shares by the Company.   The
shares of Common Stock underlying the Deferred Shares shall be released to the
Grantee by the Company’s transfer agent (currently EquiServe) at the direction
of the Company. At such time as the Deferred Shares become nonforfeitable as
specified in this Agreement, the Company shall direct the transfer agent to
forward all such nonforfeitable shares of Common Stock to the Grantee except in
the event that the Grantee has notified the Company of his or her election to
satisfy any tax obligations by surrender of a portion 

of such shares, the
transfer agent will be directed to forward the remaining balance of shares
after the amount necessary for such taxes has been deducted.

8.                 Compliance with Law.   The Company
shall make reasonable efforts to comply with all applicable federal and state
securities laws; provided, however, notwithstanding any other provision of this
Agreement, the Company shall not be obligated to issue any Deferred Shares or
shares of Common Stock or other securities pursuant to this Agreement if the
issuance thereof would result in a violation of any such law.

9.                 Relation to Other Benefits.   Any
economic or other benefit to the Grantee under this Agreement shall not be
taken into account in determining any benefits to which the Grantee may be
entitled.

10.          Amendments.   Any amendment to the Plan
shall be deemed to be an amendment to this Agreement to the extent that the
amendment is applicable hereto; provided, however, that no amendment shall
adversely affect the rights of the Grantee under this Agreement without the
Grantee’s consent.

11.          Severability.   In the event that one
or more of the provisions of this Agreement shall be invalidated for any reason
by a court of competent jurisdiction, any provision so invalidated shall be
deemed to be separable from the other provisions hereof, and the remaining
provisions hereof shall continue to be valid and fully enforceable.

12.          Relation to Plan.   This Agreement is
subject to the terms and conditions of the Plan. In the event of any
inconsistent provisions between this Agreement and the Plan, the Plan shall
govern. Capitalized terms used herein without definition shall have the
meanings assigned to them in the Plan. The Compensation Committee acting
pursuant to the Plan, as constituted from time to time, shall, except as
expressly provided otherwise herein, have the right to determine any questions
which arise in connection with this grant.

13.          Successors and Assigns.   The
provisions of this Agreement shall inure to the benefit of, and be binding
upon, the successors, administrators, heirs, legal representatives and assigns
of the Grantee, and the successors and assigns of the Company.

14.          Governing Law.   The interpretation,
performance, and enforcement of this Agreement shall be governed by the laws of
the State of Georgia, without giving effect to the principles of conflict of
laws thereof.

15.          Notices.   Any notice to the Company
provided for herein shall be in writing to the Company, marked Attention:  Vice President-General Counsel and Secretary,
and any notice to the Grantee shall be addressed to said Grantee at his or her
address currently on file with the Company. Except as otherwise provided
herein, any written notice shall be deemed to be duly given if and when
delivered personally or deposited in the United States mail, first class
registered mail, postage and fees prepaid, and addressed as aforesaid. Any
party may change the address to which notices are to be given hereunder by
written notice to the other party as herein specified (provided that for this
purpose any mailed notice shall be deemed given on the third business day
following deposit of the same in the United States mail).

IN WITNESS WHEREOF, the
Company has caused this Agreement to be executed on its behalf by its duly
authorized officer and Grantee has also executed this Agreement in duplicate,
as of the day and year first above written.

	
  GEORGIA GULF CORPORATION

  
	
   

  
	
  By:

  	
   

  	
   

  
	
   

  	
   

  	
  Vice President

  
	
   

  	
   

  	
   

  
	
   

  	
   

  	
   

  
	
   

  	
   

  	
  GranteeExhibit
10.1

 

ACUSPHERE, INC.

 

AMENDMENT
NO. 3 TO INVESTORS’ RIGHTS AGREEMENT

 

This Amendment No. 3 (the
“Amendment No. 3”) to that certain Tenth Amended and Restated Investors’
Rights Agreement dated April 11, 2003, as amended by Amendment No. 1 dated August
20, 2003 and Amendment No. 2 dated July 29, 2004 (as amended and in effect from
time to time, the “Investors’ Rights Agreement”), is effective as of
October 26, 2004 (the “Effective Date”), by and among Acusphere, Inc., a
Delaware corporation (the “Company”), and the undersigned holders of
Registrable Securities (as defined in the Investors’ Rights Agreement).

 

WHEREAS, the Company has
granted certain registration rights to holders of the Company’s Registrable
Securities as set forth in the Investors’ Rights Agreement;

 

WHEREAS, pursuant to
Section 4.7 of the Investors’ Rights Agreement, the prior written consent of
holders of at least fifty-five percent (55%) of the outstanding Registrable
Securities is required to amend the Investors’ Rights Agreement;

 

WHEREAS, the Company and
the undersigned holders, which holders hold at least fifty-five percent (55%)
of the outstanding Registrable Securities as of the date hereof, wish to amend
the Investors’ Rights Agreement in the manner set forth below;

 

NOW, THEREFORE, in
consideration of the mutual promises, covenants and conditions hereinafter set
forth and for other good and valuable consideration the receipt and sufficiency
of which is hereby acknowledged, the Company and the undersigned holders hereby
agree as follows:

 

1.             Amendment
of Investors’ Rights Agreement.  The
Stockholders hereby amend the Investors’ Rights Agreement as follows:

 

(a)           Section 2.1 of the Investors’ Rights
Agreement shall be amended so as to add a new defined term “Institutional
Financing” which definition shall read in its entirety as follows:

 

“(p)         The term “Institutional Financing”
means the issuance and sale by the Company of equity securities, including
securities convertible into or exercisable for the Company’s equity securities,
on an underwritten or “best efforts” basis, in a private placement or pursuant
to a registration statement under the Act, to (i) new and/or existing venture
capital, institutional and/or accredited investors, (ii) new and/or existing
venture capital, institutional and/or accredited lenders and/or equipment
lessors, or (iii) to corporate and/or strategic partners and/or collaborators
in connection with a bona fide strategic relationship with the Company.”

 

(b)           Section 2.13 of the Investors’ Rights
Agreement shall be amended so as to read in its entirety as set forth below:

 

“2.13       Limitations on Subsequent Registration
Rights.  From and after the date of
this Agreement, except in connection with an Institutional Financing Acusphere
shall not, without the prior written consent of the Holders of a majority of
the Registrable Securities then outstanding, enter into any agreement with any
holder or prospective holder of any securities of Acusphere which would allow
such holder or prospective

 

 

holder (a) to include
such securities in any registration filed under Section 2.2 or described in
Section 2.3 hereof, unless under the terms of such agreement, such holder or
prospective holder may include such securities in any such registration only to
the extent that the inclusion of such securities will not reduce the amount of
the Registrable Securities of the Holders which are to be included or (b) to
make a demand registration which could result in such registration statement
being declared effective prior to the earlier of either of the dates set forth
in subsection 2.2(a) or within one hundred twenty (120) days of the effective
date of any registration effected pursuant to Section 2.2 or 2.4.”

 

(c)           Section 2.15 of the Investors’ Rights
Agreement shall be amended so as to read in its entirety as set forth below:

 

“2.15       Termination of Registration Rights.  No Holder shall be entitled to exercise any
right provided for in this Section 2 if there is then an active public trading
market for the Common Stock and such Holder may sell all of such Holder’s
Registrable Securities under Rule 144 promulgated under the Act in a
three-month period.  No holder shall be
entitled to exercise any right provided for in this Section 2 and this
Agreement shall automatically terminate in all respects effective December 31,
2005; provided that with respect to any
registration statement effective as of December 31, 2005 under which the
Company has registered for re-sale any of the Registrable Securities, the
Company will keep such registration statement effective until the earlier of
(a) October 7, 2008 [i.e., the
5-year anniversary of the Company’s initial public offering] or (b) until all
Registrable Securities registered under such registration statement have been
sold, subject to customary black-out periods, provided there are no more than
two such black-out periods per twelve-month period and neither black-out period
exceeds more than 45 days, unless in the good faith judgment of the Board of
Directors the sale of securities under such registration statement would be
reasonably likely to cause a violation of the Act or the 1934 Act.”

 

(d)           A new Section 2.16 of the Investors’
Rights Agreement shall be added, which section shall read in its entirety as
set forth below:

 

“2.16       Institutional Financings.  Notwithstanding anything to the contrary
contained in this Agreement, the Company is hereby expressly permitted, without
the consent of the holders of Registrable Securities, to effect Institutional
Financings from time to time and in connection with such Institutional
Financings file and take all other actions reasonably necessary or advisable in
order to effect the registration under the Act of the securities issued or
issuable in connection with such transactions by filing and effecting registration
statements with the SEC (any such registration statements being referred to
herein as “Financing Registration Statements”).  Notwithstanding anything to the contrary
contained in this Agreement, the Holders shall not be entitled:

 

(i)            to cause the Company to effect a
registration statement under the Act pursuant to Section 2.2 (Demand
Registration) or Section 2.4 (Form S-3 Registration) during the period
commencing on the date of the first public announcement of the Institutional
Financing and terminating on the day next following the date any Financing
Registration Statement effected in connection with such Institutional Financing
is first declared effective by the SEC; or

 

2

 

(ii)           to cause the Company to include their
shares of Registrable Securities in any Financing Registration Statement
effected in connection with a Institutional Financing pursuant to Section 2.3
(Piggy-Back Registration) (and the Company shall not be obligated to provide
notice of any such Financing Registration Statement as might otherwise required
by that section).

 

(e)           A new Section 2.17 of the Investors’
Rights Agreement shall be added, which section shall read in its entirety as
set forth below:

 

“2.17       Re-Sale Registration Statements.
From time to time until December 31, 2005, the Company may (and at least once
prior to December 31, 2005 the Company shall) voluntarily propose to register
for re-sale all of the Registrable Securities held by each Holder of
Registrable Securities then entitled to exercise rights hereunder.  Holders electing to include their shares in
any such registration statement shall no longer be entitled to exercise further
rights hereunder (e.g., demand and piggy-back
registration rights) with respect to such Holder’s shares of Registrable
Securities; provided that the Company keeps any such
registration statement effective until the earlier of (a) October 7, 2008 [i.e., the 5-year anniversary of the Company’s initial public
offering] or (b) the date on which all Registrable Securities registered under
such registration statement have been sold, subject to customary black-out
periods, provided there are no more than two such black-out periods per
twelve-month period and neither black-out period exceeds more than 45 days,
unless in the good faith judgment of the Board of Directors the sale of
securities under such registration statement would be reasonably likely to
cause a violation of the Act or the 1934 Act.”

 

2.             Effectiveness.  Except as amended hereby, the Investors’
Rights Agreement shall remain in full force and effect.

 

3.             Counterparts.  This Amendment No. 3 may be executed by the
parties hereto in separate counterparts, each of which once so executed and
delivered (including by facsimile) shall be considered an original, but all
such counterparts shall together constitute one and the same instrument.

 

4.             Governing
Law.  This Amendment No. 3 shall be
governed by and construed under the laws of the Commonwealth of Massachusetts
as applied to agreements among Massachusetts residents entered into and to be
performed entirely within Massachusetts.

 

5.             Definitions.
All capitalized terms used but not specifically defined herein shall have the
same meanings given such terms in the Investors’ Rights Agreement unless the
context clearly indicates or dictates a contrary meaning.

 

6.             Successors
and Assigns.  This Amendment No. 3
shall bind and inure to the benefit of the respective heirs, personal
representatives, executors, administrators, successors and assigns of the
parties hereto.

 

7.             Notices.  All notices, requests, demands and other
communications provided for in this Amendment No. 3 shall be delivered in
compliance with Section 4.5 of the Investors’ Rights Agreement.

 

8.             Titles
and Subtitles. The titles and subtitles used in this Amendment No. 3 are
used for convenience only and are not to be considered in construing or
interpreting this Amendment No. 3.

 

3

 

9.             Severability.  If one or more provisions of this Amendment
No. 3 are held to be unenforceable under applicable law, such provision shall
be excluded from this Amendment No. 3 and the balance of the Amendment No. 3
shall be interpreted as if such provision were so excluded and shall be
enforceable in accordance with its terms.

 

4

 

IN
WITNESS WHEREOF, the parties have executed this Amendment No. 3 as of the day
first above written.

 

	
   

  	
  ACUSPHERE, INC.

  
	
   

  	
  500 Arsenal Street

  
	
   

  	
  Watertown, MA 02472

  
	
   

  	
   

  
	
   

  	
   

  
	
   

  	
  By:

  	
          /s/Sherri
  C. Oberg

  	
   

  
	
   

  	
   

  	
  Sherri C. Oberg

  
	
   

  	
   

  	
  President and Chief
  Executive Officer

  

 

 

Amendment No. 3 to Investors’ Rights Agreement

 

5

 

	
   

  	
  HOLDER

  
	
   

  	
   

  
	
   

  	
   

  
	
   

  	
  Customs House Partners

  	
   

  
	
   

  	
  Name (please print)

  
	
   

  	
   

  
	
   

  	
   

  
	
   

  	
  By:

  	
  /s/Eileen McCarthy

  	
   

  
	
   

  	
   

  
	
   

  	
   

  
	
   

  	
  Print Name:

  	
       Eileen
  McCarthy

  	
   

  
	
   

  	
   

  
	
   

  	
  Title:

  	
      Under
  Power of Attorney

  	
   

  
	
   

  	
   

  
	
   

  	
  Address:

  	
  c/o Alta Communications

  	
   

  
	
   

  	
  200 Clarendon Street,
  Floor 51

  	
   

  
	
   

  	
  Boston, MA 02116

  	
   

  
	
   

  	
   

  
	
   

  	
   

  
	
   

  	
  Number of Registrable
  Securities

  
	
   

  	
  held as of the Effective
  Date:

  
	
   

  	
   

  
	
   

  	
  8,949 (plus 422 shares
  of common stock issuable

  	
   

  
	
   

  	
  upon exercise of a
  warrant)

  	
   

  
									

 

 

Signature page to Amendment No. 3 to Investors’
Rights Agreement

 

6

 

	
   

  	
  HOLDER

  
	
   

  	
   

  
	
   

  	
   

  
	
   

  	
  Alta V Limited
  Partnership

  	
   

  
	
   

  	
  Name (please print)

  
	
   

  	
   

  
	
   

  	
  By: Alta Management
  Partners, L.P.

  
	
   

  	
   

  
	
   

  	
  By:

  	
  /s/Eileen McCarthy

  	
   

  
	
   

  	
   

  
	
   

  	
   

  
	
   

  	
  Print Name:

  	
       Eileen
  McCarthy

  	
   

  
	
   

  	
   

  
	
   

  	
  Title:

  	
      General
  Partner

  	
   

  
	
   

  	
   

  
	
   

  	
  Address:

  	
  c/o Alta Communications

  	
   

  
	
   

  	
  200 Clarendon Street,
  Floor 51

  	
   

  
	
   

  	
  Boston, MA  02116

  	
   

  
	
   

  	
   

  
	
   

  	
   

  
	
   

  	
  Number of Registrable
  Securities

  
	
   

  	
  held as of the
  Effective Date:

  
	
   

  	
   

  
	
   

  	
  430,265  (plus 40,195 shares of common stock 

  	
   

  
	
   

  	
  issuable upon exercise
  of a warrant)

  	
   

  
									

 

 

Signature page to Amendment No. 3 to Investors’
Rights Agreement

 

7

 

	
   

  	
  HOLDER

  
	
   

  	
   

  
	
   

  	
   

  
	
   

  	
  Alta V Management
  Partners, L.P.

  	
   

  
	
   

  	
  Name (please print)

  
	
   

  	
   

  
	
   

  	
   

  
	
   

  	
  By:

  	
  /s/Eileen McCarthy

  	
   

  
	
   

  	
   

  
	
   

  	
   

  
	
   

  	
  Print Name:

  	
       Eileen
  McCarthy

  	
   

  
	
   

  	
   

  
	
   

  	
  Title:

  	
      General
  Partner

  	
   

  
	
   

  	
   

  
	
   

  	
  Address:

  	
  c/o Alta Communications

  	
   

  
	
   

  	
  200 Clarendon Street,
  Floor 51

  	
   

  
	
   

  	
  Boston, MA  02116

  	
   

  
	
   

  	
   

  
	
   

  	
   

  
	
   

  	
  Number of Registrable
  Securities

  
	
   

  	
  held as of the
  Effective Date:

  
	
   

  	
   

  
	
   

  	
  77,807

  	
   

  
									

 

 

Signature page to Amendment No. 3 to Investors’
Rights Agreement

 

8

 

	
   

  	
  HOLDER

  
	
   

  	
   

  
	
   

  	
   

  
	
   

  	
  Polaris Venture
  Partners Founders Fund, L.P.

  	
   

  
	
   

  	
  Name (please print)

  
	
   

  	
   

  
	
   

  	
  By: Polaris Venture
  Management Co, LLC

  
	
   

  	
  Its General Partner

  
	
   

  	
   

  
	
   

  	
  By:

  	
     /s/Kevin Littlejohn

  	
   

  
	
   

  	
   

  
	
   

  	
   

  
	
   

  	
  Print Name:

  	
  Kevin Littlejohn

  	
   

  
	
   

  	
   

  
	
   

  	
  Title:

  	
  Authorized Signatory
  for

  	
   

  
	
   

  	
  Polaris Venture
  Partners Founders Fund, L.P.

  	
   

  
	
   

  	
   

  
	
   

  	
  Address:

  	
  1000 Winter Street,
  Suite 3350

  	
   

  
	
   

  	
  Waltham, MA 02451

  	
   

  
	
   

  	
   

  	
   

  
	
   

  	
   

  
	
   

  	
   

  
	
   

  	
  Number of Registrable
  Securities

  
	
   

  	
  held as of the
  Effective Date:

  
	
   

  	
   

  
	
   

  	
  37,368  (plus 2,085 shares of common stock issuable

  	
   

  
	
   

  	
  upon exercise of a
  warrant)

  	
   

  
											

 

 

Signature page to Amendment No. 3 to Investors’
Rights Agreement

 

9

 

	
   

  	
  HOLDER

  
	
   

  	
   

  
	
   

  	
   

  
	
   

  	
  Polaris Venture
  Partners, L.P.

  	
   

  
	
   

  	
  Name (please print)

  
	
   

  	
   

  
	
   

  	
  By: Polaris Venture
  Management Co, LLC

  
	
   

  	
  Its General Partner

  
	
   

  	
   

  
	
   

  	
  By:

  	
     /s/Kevin Littlejohn

  	
   

  
	
   

  	
   

  
	
   

  	
   

  
	
   

  	
  Print Name:

  	
  Kevin Littlejohn

  	
   

  
	
   

  	
   

  
	
   

  	
  Title:

  	
  Authorized Signatory
  for

  	
   

  
	
   

  	
  Polaris Venture
  Partners, L.P.

  	
   

  
	
   

  	
   

  
	
   

  	
  Address:

  	
  1000 Winter Street,
  Suite 3350

  	
   

  
	
   

  	
  Waltham, MA 02451

  	
   

  
	
   

  	
   

  	
   

  
	
   

  	
   

  
	
   

  	
   

  
	
   

  	
  Number of Registrable
  Securities

  
	
   

  	
  held as of the
  Effective Date:

  
	
   

  	
   

  
	
   

  	
  623,364  (plus 34,850 shares of common stock
  issuable

  	
   

  
	
   

  	
  upon exercise of a
  warrant)

  	
   

  
											

 

 

Signature page to Amendment No. 3 to Investors’
Rights Agreement

 

10

 

	
   

  	
  HOLDER

  
	
   

  	
   

  
	
   

  	
   

  
	
   

  	
  BANK OF AMERICA
  VENTURES

  	
   

  
	
   

  	
  Name (please print)

  
	
   

  	
   

  
	
   

  	
  By:

  	
       /s/Kate
  D. Mitchell

  	
   

  
	
   

  	
   

  
	
   

  	
  Print Name: 

  	
  Kate D. Mitchell

  	
   

  
	
   

  	
   

  
	
   

  	
  Title:

  	
   

  	
  Managing Director

  	
   

  
	
   

  	
   

  
	
   

  	
   

  
	
   

  	
  Address:

  	
  950 Tower Lane, Suite
  700

  
	
   

  	
   

  	
  Foster City, CA 94404

  
	
   

  	
   

  
	
   

  	
   

  
	
   

  	
  Number of Registrable
  Securities

  
	
   

  	
  held as of the
  Effective Date:

  
	
   

  	
   

  
	
   

  	
  1,314,164 (plus 61,811
  shares of common stock issuable

  	
   

  
	
   

  	
  upon exercise of a
  warrant)

  	
   

  
								

 

 

Signature page to Amendment No. 3 to Investors’
Rights Agreement

 

11

 

	
   

  	
  HOLDER

  
	
   

  	
   

  
	
   

  	
   

  
	
   

  	
  BA VENTURE PARTNERS II,
  INC.

  	
   

  
	
   

  	
  Name (please print)

  
	
   

  	
   

  
	
   

  	
  By:

  	
  /s/Kate D. Mitchell

  	
   

  
	
   

  	
   

  
	
   

  	
  Name:

  	
  Kate D. Mitchell

  	
   

  
	
   

  	
   

  
	
   

  	
  Title:

  	
   

  	
  Chairman of the Board

  	
   

  
	
   

  	
   

  
	
   

  	
   

  
	
   

  	
  Address:

  	
  950 Tower Lane, Suite
  700

  
	
   

  	
   

  	
  Foster City, CA 94404

  
	
   

  	
   

  
	
   

  	
   

  
	
   

  	
  Number of Registrable
  Securities

  
	
   

  	
  held as of the
  Effective Date:

  
	
   

  	
   

  
	
   

  	
  146,016  (plus 6,867 shares of common stock issuable

  	
   

  
	
   

  	
  upon exercise of a
  warrant)

  	
   

  
							

 

 

Signature page to Amendment No. 3 to Investors’
Rights Agreement

 

12

 

	
   

  	
  HOLDER

  
	
   

  	
   

  
	
   

  	
   

  
	
   

  	
  HBM BioVentures
  (Cayman) Ltd.

  	
   

  
	
   

  	
  Name (please print)

  
	
   

  	
   

  
	
   

  	
  By:

  	
          /s/John
  Arnold

  	
   

  
	
   

  	
   

  
	
   

  	
  Print Name:

  	
  John Arnold

  	
   

  
	
   

  	
   

  
	
   

  	
  Title:

  	
     Chairman
  & Managing Director

  	
   

  
	
   

  	
   

  
	
   

  	
   

  
	
   

  	
  Address:

  	
  PO Box 30852 SMB

  	
   

  
	
   

  	
  Euoalyptus Bldg., Crewe
  Road

  	
   

  
	
   

  	
  Grand Cayman, Cayman
  Islands

  	
   

  
	
   

  	
   

  
	
   

  	
   

  
	
   

  	
  Number of Registrable
  Securities

  
	
   

  	
  held as of the
  Effective Date:

  
	
   

  	
   

  
	
   

  	
  607,206  (plus 33,9432 shares of common stock
  issuable

  	
   

  
	
   

  	
  upon exercise of a
  warrant)

  	
   

  
									

 

 

Signature page to Amendment No. 3 to Investors’
Rights Agreement

 

13

 

	
   

  	
  HOLDER

  
	
   

  	
   

  
	
   

  	
   

  
	
   

  	
  BANCBOSTON VENTURES
  INC.

  	
   

  
	
   

  	
  Name (please print)

  
	
   

  	
   

  
	
   

  	
   

  
	
   

  	
  By:

  	
     /s/Deirdre
  A. Cunnane

  	
   

  
	
   

  	
   

  
	
   

  	
   

  
	
   

  	
  Print Name:

  	
       Deirdre
  A. Cunnane

  	
   

  
	
   

  	
   

  
	
   

  	
  Title:

  	
    Director

  	
   

  
	
   

  	
   

  
	
   

  	
  Address:

  	
  175 Federal Street, 10th
  Floor

  	
   

  
	
   

  	
  MA5-102-10-01

  	
   

  
	
   

  	
  Boston, MA  02110

  	
   

  
	
   

  	
   

  
	
   

  	
   

  
	
   

  	
  Number of Registrable
  Securities

  
	
   

  	
  held as of the
  Effective Date:

  
	
   

  	
   

  
	
   

  	
  452,414  (plus 25,290 shares of common stock
  issuable

  	
   

  
	
   

  	
  upon exercise of a
  warrant)

  	
   

  
									

 

 

Signature page to Amendment No. 3 to Investors’
Rights Agreement

 

14

 

	
   

  	
  HOLDER

  
	
   

  	
   

  
	
   

  	
   

  
	
   

  	
     Audax
  Private Equity Fund, L.P.

  	
   

  
	
   

  	
  Name (please print)

  
	
   

  	
   

  
	
   

  	
  By: Audax Private
  Equity Business, LLC

  
	
   

  	
  its General Partner

  
	
   

  	
   

  
	
   

  	
  By: Audax Private
  Equity Business, L.P.

  
	
   

  	
  its Managing Member

  
	
   

  	
   

  
	
   

  	
  By:

  	
       /s/Adam A. Abramson

  	
   

  
	
   

  	
   

  
	
   

  	
   

  
	
   

  	
  Print Name:

  	
      Adam
  A. Abramson

  	
   

  
	
   

  	
   

  
	
   

  	
  Title:

  	
      Authorized
  Signatory

  	
   

  
	
   

  	
   

  
	
   

  	
  Address:

  	
  101 Huntington
  Avenue

  	
   

  
	
   

  	
  Boston, MA  02199

  	
   

  
	
   

  	
   

  	
   

  
	
   

  	
   

  
	
   

  	
   

  
	
   

  	
  Number of Registrable
  Securities

  
	
   

  	
  held as of the
  Effective Date:

  
	
   

  	
   

  
	
   

  	
  506,048  (plus 27,453 shares of common stock
  issuable

  	
   

  
	
   

  	
  upon exercise of a
  warrant)

  	
   

  
										

 

 

Signature page to Amendment No. 3 to Investors’
Rights Agreement

 

15

 

	
   

  	
  HOLDER

  
	
   

  	
   

  
	
   

  	
   

  
	
   

  	
     Audax
  Co-Invest, L.P.

  	
   

  
	
   

  	
  Name (please print)

  
	
   

  	
   

  
	
   

  	
  By: 101 Huntington
  Holdings, LLC

  
	
   

  	
  its General Partner

  
	
   

  	
   

  
	
   

  	
  By:

  	
       /s/Adam A. Abramson

  	
   

  
	
   

  	
   

  
	
   

  	
   

  
	
   

  	
  Print Name:

  	
        Adam
  A. Abramson

  	
   

  
	
   

  	
   

  
	
   

  	
  Title:

  	
     Authorized
  Signatory

  	
   

  
	
   

  	
   

  
	
   

  	
  Address:

  	
  101 Huntington
  Avenue

  	
   

  
	
   

  	
  Boston, MA  02199

  	
   

  
	
   

  	
   

  	
   

  
	
   

  	
   

  
	
   

  	
   

  
	
   

  	
  Number of Registrable
  Securities

  
	
   

  	
  held as of the
  Effective Date:

  
	
   

  	
   

  
	
   

  	
  21,788  (plus 1,290 shares of common stock issuable

  	
   

  
	
   

  	
  upon exercise of a
  warrant)

  	
   

  
										

 

 

Signature page to Amendment No. 3 to Investors’
Rights Agreement

 

16

 

	
   

  	
  HOLDER

  
	
   

  	
   

  
	
   

  	
   

  
	
   

  	
     Audax
  Trust Co-Invest, L.P.

  	
   

  
	
   

  	
  Name (please print)

  
	
   

  	
   

  
	
   

  	
  By: 101 Huntington
  Holdings, LLC

  
	
   

  	
  its General Partner

  
	
   

  	
   

  
	
   

  	
  By:

  	
       /s/Adam A. Abramson

  	
   

  
	
   

  	
   

  
	
   

  	
   

  
	
   

  	
  Print Name:

  	
      Adam
  A. Abramson

  	
   

  
	
   

  	
   

  
	
   

  	
  Title:

  	
     Authorized
  Signatory

  	
   

  
	
   

  	
   

  
	
   

  	
  Address:

  	
  101 Huntington
  Avenue

  	
   

  
	
   

  	
  Boston, MA  02199

  	
   

  
	
   

  	
   

  	
   

  
	
   

  	
   

  
	
   

  	
   

  
	
   

  	
  Number of Registrable
  Securities

  
	
   

  	
  held as of the
  Effective Date:

  
	
   

  	
   

  
	
   

  	
  8,351 (plus 5 shares of
  common stock issuable

  	
   

  
	
   

  	
  upon exercise of a
  warrant)

  	
   

  
								

 

 

Signature page to Amendment No. 3 to Investors’
Rights Agreement

 

17

 

	
   

  	
  HOLDER

  
	
   

  	
   

  
	
   

  	
   

  
	
   

  	
     AFF
  Co-Invest, L.P.

  	
   

  
	
   

  	
  Name (please print)

  
	
   

  	
   

  
	
   

  	
  By: 101 Huntington
  Holdings, LLC

  
	
   

  	
  its General Partner

  
	
   

  	
   

  
	
   

  	
  By:

  	
      /s/Adam A. Abramson

  	
   

  
	
   

  	
   

  
	
   

  	
   

  
	
   

  	
  Print Name:

  	
      Adam
  A. Abramson

  	
   

  
	
   

  	
   

  
	
   

  	
  Title:

  	
    Authorized
  Signatory

  	
   

  
	
   

  	
   

  
	
   

  	
  Address:

  	
  101 Huntington
  Avenue

  	
   

  
	
   

  	
  Boston, MA  02199

  	
   

  
	
   

  	
   

  	
   

  
	
   

  	
   

  
	
   

  	
   

  
	
   

  	
  Number of Registrable
  Securities

  
	
   

  	
  held as of the
  Effective Date:

  
	
   

  	
   

  
	
   

  	
             8,685
  (plus 794 shares of common stock

  	
   

  
	
   

  	
  issuable upon exercise
  of a warrant)

  	
   

  
								

 

 

Signature page to Amendment No. 3 to Investors’
Rights Agreement

 

18

 

	
   

  	
  HOLDER

  
	
   

  	
   

  
	
   

  	
   

  
	
   

  	
     Audax
  Special Purpose Co-Invest, L.P.

  	
   

  
	
   

  	
  Name (please print)

  
	
   

  	
   

  
	
   

  	
  By: 101 Huntington
  Holdings, LLC

  
	
   

  	
  its General Partner

  
	
   

  	
   

  
	
   

  	
  By:

  	
      /s/Adam A. Abramson

  	
   

  
	
   

  	
   

  
	
   

  	
   

  
	
   

  	
  Print Name:

  	
     Adam
  A. Abramson

  	
   

  
	
   

  	
   

  
	
   

  	
  Title:

  	
     Authorized
  Signatory

  	
   

  
	
   

  	
   

  
	
   

  	
  Address:

  	
  101 Huntington
  Avenue

  	
   

  
	
   

  	
  Boston, MA  02199

  	
   

  
	
   

  	
   

  	
   

  
	
   

  	
   

  
	
   

  	
   

  
	
   

  	
  Number of Registrable
  Securities

  
	
   

  	
  held as of the
  Effective Date:

  
	
   

  	
   

  
	
   

  	
                3,035
  (plus 164 shares of common stock

  	
   

  
	
   

  	
  issuable upon exercise
  of a warrant)

  	
   

  
									

 

 

Signature page to Amendment No. 3 to Investors’
Rights Agreement

 

19

 

	
   

  	
  HOLDER

  
	
   

  	
   

  
	
   

  	
   

  
	
   

  	
  Trustees of Boston
  University

  	
   

  
	
   

  	
  Name (please print)

  
	
   

  	
   

  
	
   

  	
   

  
	
   

  	
  By:

  	
       /s/Martin Howard

  	
   

  
	
   

  	
   

  
	
   

  	
   

  
	
   

  	
  Print Name:

  	
       Martin
  Howard

  	
   

  
	
   

  	
   

  
	
   

  	
  Title:

  	
     Assistant
  Treasurer

  	
   

  
	
   

  	
   

  
	
   

  	
  Address:

  	
  108 Bay State
  Road

  	
   

  
	
   

  	
  Boston, MA  02225

  	
   

  
	
   

  	
   

  	
   

  
	
   

  	
   

  
	
   

  	
   

  
	
   

  	
  Number of Registrable
  Securities

  
	
   

  	
  held as of the
  Effective Date:

  
	
   

  	
   

  
	
   

  	
  192,245

  	
   

  
								

 

 

Signature page to Amendment No. 3 to Investors’
Rights Agreement

 

20

 

	
   

  	
  HOLDER

  
	
   

  	
   

  
	
   

  	
   

  
	
   

  	
  Union Carbide Employees
  Pension Plan

  	
   

  
	
   

  	
  Name (please print)

  
	
   

  	
   

  
	
   

  	
  By:

  	
         /s/Evan

  	
   

  
	
   

  	
   

  
	
   

  	
   

  
	
   

  	
  Print Name:

  	
  Diamond Capital
  Management Inc., its

  	
   

  
	
   

  	
  Agent

  	
   

  
	
   

  	
   

  
	
   

  	
  Title:

  	
     Director,
  Alternative Investments

  	
   

  
	
   

  	
   

  
	
   

  	
  Address:

  	
  Midland, MI

  	
   

  
	
   

  	
   

  	
   

  
	
   

  	
   

  	
   

  
	
   

  	
   

  
	
   

  	
   

  
	
   

  	
  Number of Registrable
  Securities

  
	
   

  	
  held as of the
  Effective Date:

  
	
   

  	
   

  
	
   

  	
  445,069

  	
   

  
										

 

 

Signature page to Amendment No. 3 to Investors’
Rights Agreement

 

21

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