Ownership Submission
FORM 3
 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF 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 *
  Flynn James E
 2. Date of Event Requiring Statement (Month/Day/Year)
01/31/2006		 3. Issuer Name and Ticker or Trading Symbol
DYNAVAX TECHNOLOGIES CORP [DVAX]
(Last)
(First)
(Middle)
780 THIRD AVENUE, 37TH FLOOR		 4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director __X__ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

NEW YORK, NY 10017		 6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Beneficially Owned
1.Title of Security
(Instr. 4)		 2. Amount of Securities Beneficially Owned
(Instr. 4)		 3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)		 4. Nature of Indirect Beneficial Ownership
(Instr. 5)
Common Stock 993,599
I
By Deerfield Partners, LP (1)
Common Stock 245,000
I
By Deerfield Special Situations Fund, LP (1)
Common Stock 1,306,401
I
By Deerfield International Limited (2)
Common Stock 455,000
I
By Deerfield Speical Situations Fund International Limited (2)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)		 2. Date Exercisable and Expiration Date
(Month/Day/Year)		 3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)		 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)		 6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
Flynn James E
780 THIRD AVENUE
37TH FLOOR
NEW YORK, NY 10017		     X    

Signatures

By: /s/ James E. Flynn(+) 02/08/2006
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 5(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) Deerfield Capital, L.P. is the general partner of Deerfield Partners, L.P. and Deerfield Special Situations Fund, L.P. (the "Domestic Funds"). James E. Flynn is the managing member of the general partner of Deerfield Capital, L.P. In accordance with Instruction 5(b)(iv), the entire amount of the Issuer's securities held by the Domestic Funds is reported herein.
(2) Deerfield Management Company, L.P. is the investment manager of Deerfield International Limited and Deerfield Special Situations Fund International Limited (the "Offshore Funds"). James E. Flynn is the managing member of the general partner of Deerfield Management Company, L.P. In accordance with Instruction 5(b)(iv), the entire amount of the Issuer's securities held by the Offshore Funds is reported herein.
 
Remarks:
(+)  James E. Flynn disclaims beneficial ownership in the Common Shares reported on this Form 3 except to the extent of his
 pecuniary interest, if any, therein, and this report shall not be deemed to be an admission that James E. Flynn is the
 beneficial owner of such securities for purposes of Section 16 or for any other purpose.

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