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 *
  BEAR STEARNS COMPANIES INC
2. Date of Event Requiring Statement (Month/Day/Year)
12/14/2006
3. Issuer Name and Ticker or Trading Symbol
AFFYMAX INC [AFFY]
(Last)
(First)
(Middle)
383 MADISON AVE.
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 10179
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 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)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.

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
Series C Convertible Preferred Stock   (1)   (1) Common Stock 662,601 (2) (3) $ (4) I See Footnote (2) (3)
Series D Convertible Preferred Stock   (1)   (1) Common Stock 496,950 (2) (5) $ (6) I See Footnote (2) (5)

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
BEAR STEARNS COMPANIES INC
383 MADISON AVE.
NEW YORK, NY 10179
    X    
BEAR STEARNS ASSET MANAGEMENT INC
383 MADISON AVE.
NEW YORK, NY 10179
    X    
BEAR STEARNS HEALTH INNOVENTURES MANAGEMENT LLC
383 MADISON AVE.
NEW YORK, NY 10179
    X    
BSHI Members LLC
383 MADISON AVE.
NEW YORK, NY 10179
    X    
BEAR STEARNS HEALTH INNOVENTURES LP
383 MADISON AVE.
NEW YORK, NY 10179
    X    
Bear Stearns Health Innoventures Offshore LP
383 MADISON AVE.
NEW YORK, NY 10179
    X    
BX LP
383 MADISON AVE.
NEW YORK, NY 10179
    X    
BEAR STEARNS HEALTH INNOVENTURES EMPLOYEE FUND LP
383 MADISON AVE.
NEW YORK, NY 10179
    X    
RYSER STEFAN
383 MADISON AVE.
NEW YORK, NY 10179
    X    

Signatures

/s/ Kenneth L. Edlow, Secretary, The Bear Stearns Companies Inc. 12/12/2006
**Signature of Reporting Person Date

/s/ Roger Baumenn, Senior Managing Director, Bear Stearns Asset Management, Inc. 12/12/2006
**Signature of Reporting Person Date

/s/ Elizabeth Czerepak, Managing Partner, Bear Stearns Health Innoventures Management, LLC 12/12/2006
**Signature of Reporting Person Date

/s/ Elizabeth Czerepak, Authorized Signatory, Bear Stearns Asset Management Inc., Manager of BSHI Members, LLC 12/12/2006
**Signature of Reporting Person Date

/s/ Elizabeth Czerepak, Authorized Signatory, Bear Stearns Health Innoventures Management, LLC, General Partner of Bear Stearns Health Innoventures L.P. 12/12/2006
**Signature of Reporting Person Date

/s/ Elizabeth Czerepak, Authorized Signatory, Bear Stearns Health Innoventures Management, LLC, General Partner of Bear Stearns Health Innoventures Offshore, L.P. 12/12/2006
**Signature of Reporting Person Date

/s/ Elizabeth Czerepak, Authorized Signatory, Bear Stearns Health Innoventures Management, LLC, General Partner of BX, L.P. 12/12/2006
**Signature of Reporting Person Date

/s/ Elizabeth Czerepak, Authorized Signatory, Bear Stearns Health Innoventures Management, LLC, General Partner of Bear Stearns Health Innoventures Employee Fund, L.P. 12/12/2006
**Signature of Reporting Person Date

/s/ Stefan Ryser, as an Individual 12/12/2006
**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) These securities are preferred stock of the Issuer and do not have an expiration date. These securities will automatically convert into shares of common stock upon the closing of the Issuer's initial public offering.
(2) The Bear Stearns Companies, Inc. ("BSCI") is the parent company of Bear Stearns Asset Management, Inc. ("BSAM"). BSAM is the sole manager of Bear Stearns Health Innoventures Management, LLC ("Management") and the sole manager of BSHI Members, LLC ("Members"). Dr. Ryser and Elizabeth Czerepak are managing partners of Management. Management is the sole general partner of Bear Stearns Health Innoventures, L.P. ("BSHI"), the sole general partner of Bear Stearns Health Innoventures Offshore, L.P. ("Offshore"), the sole general partner of BX, L.P. ("BX"), and the sole general partner of Bear Stearns Health Innoventures Employee Fund, L.P. ("Employee Fund"), and Members co-invests with these funds.
(3) The shares are directly owned as follows: 44,568 by Members; 95,892 by BSHI; 78,887 by Offshore; 381,051 by BX and 62,203 by Employee Fund. Each Reporting Person disclaims beneficial ownership of any securities that exceed its pecuniary interest in the securities held by these entities.
(4) Each share of Series C Convertible Stock will convert automatically into shares of Common Stock on a 1 for 1 basis immediately prior to the closing of the Issuer's initial public offering.
(5) The shares are directly owned as follows: 33,426 by Members; 71,919 by BSHI; 59,165 by Offshore; 285,788 by BX and 46,652 by Employee Fund. Each Reporting Person disclaims beneficial ownership of any securities that exceed its pecuniary interest in the securities held by these entities.
(6) Each share of Series D Convertible Stock will convert automatically into shares of Common Stock on a 1 for 1 basis immediately prior to the closing of the Issuer's initial public offering.

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