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 * PFIZER INC   2. Issuer Name and Ticker or Trading Symbol ICAGEN INC [ICGN] 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) 235 E 42ND ST,  3. Date of Earliest Transaction (Month/Day/Year) 10/27/2011 (Street) NEW YORK, NY 10017 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 10/27/2011   P   2,743,269 (1) A $ 6 100 (2) D

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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
PFIZER INC 235 E 42ND ST NEW YORK, NY 10017		X
Eclipse Acquisition Corp. 235 EAST 42ND ST. MS 235/19/2 NEW YORK, NY 10017		X

Signatures

/s/Bryan Supran, Sr. Vice President & Associate General Counsel - Pfizer Inc.		11/02/2011
**Signature of Reporting Person		Date
/s/Andrew Muratore, Vice President & Secretary - Eclipse Acquisition Corp.		11/02/2011
**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)	This amount reflects all of the outstanding shares of Icagen, Inc. ("Icagen") not owned by Pfizer Inc. ("Pfizer") and Eclipse Acquisition Corp. On October 27, 2011, Eclipse Acquisition Corp. was merged with and into Icagen with Icagen continuing as the surviving corporation and a wholly-owned subsidiary of Pfizer. At the effective time of the merger, these shares of common stock were cancelled and ceased to exist.
(2)	Prior to the merger, Pfizer held 100 shares of common stock, $0.01 par value per share, of Eclipse Acquisition Corp., which represented all of the issued and outstanding capital stock of Eclipse Acquisition Corp. At the effective time of the merger, each share of Eclipse Acquisition Corp. was converted into one share of common stock of Icagen, resulting in the acquisition by Pfizer of 100% of the equity interest of Icagen.

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