SEC Form 5

FORM 5		UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ANNUAL STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940	OMB APPROVAL OMB Number: 3235-0362 Estimated average burden hours per response: 1.0
	Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
	Form 3 Holdings Reported.
	Form 4 Transactions Reported.

1. Name and Address of Reporting Person* Chen Lan Bo (Last) (First) (Middle) 184 EAST EMERSON ROAD (Street) LEXINGTON MA 02420 (City) (State) (Zip)	2. Issuer Name and Ticker or Trading Symbol SYNTA PHARMACEUTICALS CORP [ SNTA ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X Director 10% Owner Officer (give title below) Other (specify below)
	3. Statement for Issuer's Fiscal Year Ended (Month/Day/Year) 12/31/2011
	4. If Amendment, Date of Original Filed (Month/Day/Year)	6. Individual or Joint/Group Filing (Check Applicable Line) X Form filed by One Reporting Person Form filed by More than One Reporting Person

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 at end of Issuer's Fiscal Year (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
				Amount	(A) or (D)	Price
Common Stock	12/06/2011		G	38,100	D	$0	952,606(1)	I	By Wisteria Trust(2)
Common Stock	12/06/2011		G	6,350	A	$0	31,860	I	By Alexander Chen Wu 2002 Irrevocable Trust(2)
Common Stock	12/06/2011		G	6,350	A	$0	27,710	I	By Allison Chen Wu 2004 Irrevocable Trust(2)
Common Stock	12/06/2011		G	6,350	A	$0	249,831	I	By Ann Chen Trust(2)
Common Stock	12/06/2011		G	6,350	A	$0	249,831	I	By Jane Chen Trust(2)
Common Stock							666,262(3)	D
Common Stock							12,946	I	By Chen Grandchildren's Trust(2)
Common Stock							142,223	I	By LAJ Holdings LLC(2)
Common Stock							113,773(4)	I	By Lan Bo Chen 2009 GRAT
Common Stock							711,088(5)	I	By Lin-Huey Chen 2009 GRAT
Common Stock							206,422(6)	I	By Lin-Huey Chen 2010 GRAT

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 Securities Underlying Derivative Security (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: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
					(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Reflects (1) the inclusion of 43,578 shares previously owned directly by the Lin-Huey Chen 2010 GRAT and reported as indirectly owned by the Reporting Person which were distributed by the Lin-Huey Chen 2010 GRAT to the Wisteria Trust on December 6, 2011, and (2) the inclusion of 170,809 shares previously owned directly by the Lin-Huey Chen 2009 GRAT and reported as indirectly owned by the Reporting Person which were distributed by the Lin-Huey Chen 2009 GRAT to the Wisteria Trust on December 6, 2011.

2. The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, if any, and the inclusion of these shares in this report shall not be deemed an admission of the beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

3. Reflects the inclusion of 27,330 shares previously owned directly by the Lan Bo Chen 2009 GRAT and reported as indirectly owned by the Reporting Person which were distributed by the Lan Bo Chen 2009 GRAT to the Reporting Person on December 6, 2011.

4. Excludes 27,330 shares which were distributed by the Lan Bo Chen 2009 GRAT to the Reporting Person on December 6, 2011.

5. Excludes 170,809 shares which were distributed by the Lin-Huey Chen 2009 GRAT to the Wisteria Trust on December 6, 2011.

6. Excludes 43,578 shares which were distributed by the Lin-Huey Chen 2010 GRAT to the Wisteria Trust on December 6, 2011.

	/s/ Ann Margaret Eames, Attorney-in-Fact	02/14/2012
	** Signature of Reporting Person	Date
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 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).
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