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FORM 3UNITED 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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1. Name and Address of Reporting Person*
MARXE AUSTIN W & GREENHOUSE DAVID M

(Last)(First)(Middle)
C/O SPECIAL SITUATIONS FUNDS, 527 MADISON AVENUE, SUITE 2600

(Street)
NEW YORKNY10022

(City)(State)(Zip)
2. Date of Event Requiring Statement (Month/Day/Year)
07/24/2009
3. Issuer Name and Ticker or Trading Symbol
Cyclacel Pharmaceuticals, Inc. [CYCC]
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
DirectorX10% Owner
Officer (give title below)Other (specify below)
5. If Amendment, Date of Original Filed (Month/Day/Year)
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4) 2. Amount of Securities Owned (Instr. 4) 3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock 3,647,058 (1)
I (1)
By Limited Partnerships (1)
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 Excercise Price of Derivative Security 5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 6. Nature of Indirect Beneficial Ownership (Instr. 5)
Date ExercisableExpiration DateTitleAmount or Number of Shares
Warrants 11/19/201002/24/2010 Common Stock 2,279,412 (2) $ 0 I (2) By Limited Partnerships (2)
Warrants 11/19/201007/23/2014 Common Stock 670,623 (2) $ 0 I (2) By Limited Partnerships (2)
Explanation of Responses:
1. This is a joint filing by Austin W. Marxe (Marxe) and David M. Greenhouse (Greenhouse). They share voting and investment control over all securities owned by Special Situations Fund III QP, L.P. (QP), Special Situations Private Equity Fund, L.P. (PE) and Special Situations Life Sciences Fund, L.P. (LS), respectively. 2,352,942 shares of Common Stock are held by QP, 588,235 shares of Common Stock are held by PE and 705,881 shares of Common Stock are held by LS. The interest of Marxe and Greenhouse in the shares of Common Stock owned by QP, PE and LS is limited to the extent of his pecuniary interest.
2. This is a joint filing by Austin W. Marxe (Marxe) and David M. Greenhouse (Greenhouse). They share voting and investment control over all securities owned by Special Situations Fund III QP, L.P. (QP), Special Situations Private Equity Fund, L.P. (PE) and Special Situations Life Sciences Fund, L.P. (LS), respectively. 1,903,249 warrants are held by QP, 475,812 warrants are held by PE and 570,974 warrants are held by LS. The interest of Marxe and Greenhouse in the shares of warrants owned by QP, PE and LS is limited to the extent of his pecuniary interest.
Austin W. Marxe08/03/2009
** Signature of Reporting PersonDate
David M. Greenhouse08/03/2009
** Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* 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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
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 Number.

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