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 *
SOROS FUND MANAGEMENT LLC
  2. Issuer Name and Ticker or Trading Symbol
MAP Pharmaceuticals, Inc. [MAPP]
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)
888 SEVENTH AVENUE, 31ST FLOOR
3. Date of Earliest Transaction (Month/Day/Year)
02/22/2010
(Street)

NEW YORK, NY 10106
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 02/22/2010   J   706 A (2) 3,135,172 I (1) (2) (3) See Footnotes (1) (2) (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
SOROS FUND MANAGEMENT LLC
888 SEVENTH AVENUE
31ST FLOOR
NEW YORK, NY 10106
    X    
SOROS GEORGE
888 SEVENTH AVE
31ST FLR
NEW YORK, NY 10106
    X    
Soros Robert
C/O SOROS FUND MANAGEMENT LLC
888 SEVENTH AVENUE, 31ST FLOOR
NEW YORK, NY 10106
    X    
SOROS JONATHAN T ALLAN
C/O SOROS FUND MANAGEMENT LLC
888 SEVENTH AVENUE, 31ST FLOOR
NEW YORK, NY 10106
    X    

Signatures

 /s/ Jodye M. Anzalotta (4)   02/24/2010
**Signature of Reporting Person Date

 /s/ Jodye M. Anzalotta (5)   02/24/2010
**Signature of Reporting Person Date

 /s/ Jodye M. Anzalotta (6)   02/24/2010
**Signature of Reporting Person Date

 /s/ Jodye M. Anzalotta (7)   02/24/2010
**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) All of the securities reported herein are held for the account of Perseus-Soros BioPharmaceutical Fund, LP ("Perseus-Soros"), Perseus-Soros Partners, LLC ("Perseus-Soros Partners"), the general partner of Perseus-Soros, SFM Participation, L.P ("SFM Participation"), a managing member of Perseus-Soros Partners, Biotech Management Partners, LLC ("Biotech Management Partners") and Quantum Industrial Partners LDC ("QIP").
(2) On February 22, 2010, Perseus 2000 Biotech Satellite, LLC distributed shares of the Issuers Common Stock pro rata to its partners for no consideration (the "Distribution"). In the Distribution, QIP received 706 shares of the Issuer's common stock. After the Distribution, Perseus-Soros Partners holds 5,293 shares of the Issuers Common Stock, SFM Participation holds 10,410 shares of the Issuers Common Stock, Biotech Management Partners, LLC holds 23,933 shares of the Issuers Common Stock, QIP now holds 269,367 shares of the Issuers Common Stock and Perseus-Soros holds 2,826,169 shares of the Issuers Common Stock.
(3) SFM Participation is a managing member of Biotech Management Partners. SFM AH, LLC, a Delaware limited liability company ("SFM AH"), is the general partner of SFM Participation. The sole managing member of SFM AH is SFM LLC. SFM LLC also serves as the principal investment manager to QIP. Mr. George Soros ("Mr. Soros") serves as Chairman of SFM LLC, Mr. Robert Soros ("Robert Soros") serves as Deputy Chairman of SFM LLC and Mr. Jonathan Soros ("Jonathan Soros") serves as President and Deputy Chairman of SFM LLC.
 
Remarks:
(4) Jodye M. Anzalotta is signing in her capacity as Ass't General Counsel of Soros Fund Management LLC.
(5) Jodye M. Anzalotta is signing in her capacity as Attorney-in-Fact for Mr. George Soros.
(6) Jodye M. Anzalotta is signing in her capacity as Attorney-in-Fact for Mr. Robert Soros.
(7) Jodye M. Anzalotta is signing in her capacity as Attorney-in-Fact for Mr. Jonathan Soros.

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