UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d)

of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): October 26, 2013

SYNTA PHARMACEUTICALS CORP.

(Exact name of registrant as specified in its charter)

Delaware

001-33277

04-3508648

(State or other jurisdiction

of incorporation)

(Commission File Number)

(IRS Employer

Identification No.)

45 Hartwell Avenue

Lexington, MA 02421

(Address of principal executive offices and zip code)

Registrant’s telephone number, including area code: (781) 274-8200

(Former name or former address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

o Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

o Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

o Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

o Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

ITEM 8.01 Other Events.

On October 26, 2013, Synta issued a press release announcing one-year follow-up results from its GALAXY-1 trial of ganetspib in patients with advanced non-small cell lung adenocarcinoma. These results were presented on October 28, 2013 at an oral session at the 15th World Conference of Lung Center in Sydney, Australia. A copy of the press release is filed as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference.

ITEM 9.01 Financial Statements and Exhibits.

(d) Exhibits.

Exhibit
Number		Description

99.1		Press Release, dated October 26, 2013

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

	SYNTA PHARMACEUTICALS CORP.


Dated: October 29, 2013	/s/ Keith S. Ehrlich
	Keith S. Ehrlich
	Vice President, Finance and Administration
	Chief Financial Officer

EXHIBIT INDEX

Exhibit No.		Description

99.1		Press Release, dated October 26, 2013