SEC Form 3
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
or Section 30(h) of the Investment Company Act of 1940	OMB APPROVAL	

OMB Number:	
3235-0104	

Estimated average burden	

hours per response:	
0.5	

	

	
1. Name and Address of Reporting Person *
CxSynta LLC	

(Last)	
(First)	
(Middle)	

C/O CAXTON CORPORATION	

731 ALEXANDER ROAD, BUILDING 2	

(Street)
PRINCETON	
NJ	
08540	

(City)	
(State)	
(Zip)	

	2. Date of Event Requiring Statement (Month/Day/Year)
02/05/2007	3. Issuer Name and Ticker or Trading Symbol
SYNTA PHARMACEUTICALS CORP [ SNTA ]	 	
 	 	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 of 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	

	 	 	 	
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)	
Common Stock	6,071,070(1)	D(2)	 	
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: 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 A Convertible Preferred Stock	(3)	(4)	Common Stock	2,154,105(3)	(3)	D(2)	 	 	
1. Name and Address of Reporting Person*
CxSynta LLC	

(Last)	
(First)	
(Middle)	

C/O CAXTON CORPORATION	

731 ALEXANDER ROAD, BUILDING 2	

(Street)
PRINCETON	
NJ	
08540	

(City)	
(State)	
(Zip)	

	
1. Name and Address of Reporting Person*
CAXTON CORP	

(Last)	
(First)	
(Middle)	

731 ALEXANDER ROAD, BUILDING 2	

 	

(Street)
PRINCETON	
NJ	
08540	

(City)	
(State)	
(Zip)	

	
Explanation of Responses:	
1. Reflects a 1-for-4 reverse stock split effected on February 2, 2007 in connection with the Issuer's initial public offering, pursuant to which the number of shares of Common Stock was divided by 4.	
2. These shares are directly owned by CxSynta LLC and indirectly owned by Caxton Corporation, the managing member of CxSynta LLC.	
3. Upon the closing of the Issuer's initial public offering of Common Stock, each share of Series A Convertible Preferred Stock, plus accrued dividends, will convert into a certain number of shares of Common Stock in accordance with the terms of the Issuer's Restated Certificate of Incorporation, as amended.	
4. N/A.	
 	By Caxton Corporation, Managing Member of CxSynta LLC, by /s/ Scott B. Bernstein, Secretary of Caxton Corporation	02/05/2007	
 	/s/ Scott B. Bernstein, Secretary of Caxton Corporation	02/05/2007	
 	** 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 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.