Ownership Submission
FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
EVNIN LUKE
   2. Issuer Name and Ticker or Trading Symbol
VIACELL INC [VIAC] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director __X__ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
(Last)
(First)
(Middle)
C/O MPM ASSET MANAGEMENT, 200 CLARENDON STREET, 54TH FLOOR		 3. Date of Earliest Transaction (Month/Day/Year)
11/09/2007
(Street)

BOSTON, MA 02116		 4. If Amendment, Date Original Filed(Month/Day/Year)
 6. Individual or Joint/Group Filing(Check Applicable Line)
___ Form filed by One Reporting Person
_X_ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)		 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code
(Instr. 8)		 4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)		 5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)		 6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)		 7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 11/09/2007   U   5,012,274 D $ 7.25 0 I By BB BioVentures LP (1)
Common Stock 11/09/2007   U   335,628 D $ 7.25 0 I By MPM BioVentures Parallel Fund LP (1)
Common Stock 11/09/2007   U   25,283 D $ 7.25 0 I By MPM Asset Management Investors 2000A LLC (1)
Common Stock 11/09/2007   U   14,444 D $ 7.25 0 I By MPM BioVentures II LP (2)
Common Stock 11/09/2007   U   130,880 D $ 7.25 0 I By MPM BioVentures II-QP LP (2)
Common Stock 11/09/2007   U   46,089 D $ 7.25 0 I By MPM BioVentures GmbH & Co. Parallel-Beteiligungs KG (2)
Common Stock 11/09/2007   U   2,715 D $ 7.25 0 I By MPM Asset Management Investors 2001 LLC (2)
Common Stock 11/09/2007   U   41,146 D $ 7.25 0 I By MPM Founders LLC (3)

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)		 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code
(Instr. 8)		 5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)		 6. Date Exercisable and Expiration Date
(Month/Day/Year)		 7. Title and Amount of Underlying Securities
(Instr. 3 and 4)		 8. Price of Derivative Security
(Instr. 5)		 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4)		 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)		 11. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
EVNIN LUKE
C/O MPM ASSET MANAGEMENT
200 CLARENDON STREET, 54TH FLOOR
BOSTON, MA 02116		     X    
MPM Founders LLC
C/O MPM ASSET MANAGEMENT
200 CLARENDON STREET, 54TH FLOOR
BOSTON, MA 02116		     X    

Signatures

 /s/ Luke Evnin   11/20/2007
**Signature of Reporting Person Date
 By Luke Evnin, member of MPM Founders LLC /s/ Luke Evnin   11/20/2007
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) BAB BioVentures L.P. and BAB BioVentures NV ("BAB NV") are the direct and indirect general partners of BB BioVentures, L.P. MPM BioVentures I L.P. and MPM BioVentures I LLC ("BioVentures LLC") are the direct and indirect general partners of MPM BioVentures Parallel Fund, L.P. BioVentures LLC has a 50% voting interest in BAB NV. Luke Evnin, Ansbert Gadicke and Michael Steinmetz are the managers of BAB NV, MPM Asset Management Investors 2000A LLC and BioVentures LLC. Each member of the group disclaims beneficial ownership of the securities except to the extent of its pecuniary interest therein.
(2) MPM Asset Management II, L.P. and MPM Asset Management II LLC ("AM II LLC") are the direct and indirect general partners of MPM BioVentures II-QP, L.P, MPM BioVentures II, L.P and MPM BioVentures GmbH & Co. Parallel-Beteiligungs KG. Luke Evnin, Ansbert Gadicke, Michael Steinmetz, Nicholas Galakatos and Kurt Wheeler are the managers of AM II LLC and MPM Asset Management Investors 2001 LLC. Each of the group disclaims beneficial ownership of the securities except to the extent of their pecuniary interest therein.
(3) Luke Evnin is a member of MPM Founders Fund LLC. Each of the group disclaims beneficial ownership of the securities except to the extent of their pecuniary interest therein.

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