EX-99.1 2 d873466dex991.htm EX-99.1

EX-99.1

Exhibit 99.1

Joint Filing Agreement

In accordance with Rule 13d-1(k)(1) under the Securities Exchange Act of 1934, as amended, each of the undersigned hereby agrees to the joint filing, along with all other such undersigned, on behalf of the Reporting Persons (as defined in the joint filing), of a statement on Schedule 13G/A (including amendments thereto) with respect to the common stock par value $0.001 per share of PTC Therapeutics, Inc., a Delaware corporation, and that this agreement be included as an exhibit to such joint filing. This agreement may be executed in any number of counterparts, all of which taken together shall constitute one and the same instrument.

Dated: February 13, 2015		PAUL G. ALLEN
		By:		/s/ WILLIAM BENACK
		Name:		William Benack
		Title:		Attorney-in-fact for Paul G. Allen
Dated: February 13, 2015		VULCAN VENTURES INCORPORATED
		By:		/s/ WILLIAM BENACK
		Name:		William Benack
		Title:		Vice President
Dated: February 13, 2015		VULCAN CAPITAL VENTURE CAPITAL MANAGEMENT I LLC
		By Vulcan Ventures Incorporated, its Managing Member
		By:		/s/ WILLIAM BENACK
		Name:		William Benack
		Title:		Vice President
Dated: February 13, 2015		VULCAN CAPITAL VENTURE CAPITAL I LLC

		By Vulcan Capital Venture Capital Management I LLC, its Manager
		By Vulcan Ventures Incorporated, its Managing Member
		By:		/s/ WILLIAM BENACK
		Name:		William Benack
		Title:		Vice President
Dated: February 13, 2015		COUGAR INVESTMENT HOLDINGS LLC
		By:		/s/ WILLIAM BENACK
		Name:		William Benack
		Title:		Vice President
Dated: February 13, 2015		VCVC MANAGEMENT III LLC
		By Cougar Investment Holdings LLC, its Managing Member
		By:		/s/ WILLIAM BENACK
		Name:		William Benack
		Title:		Vice President

Dated: February 13, 2015		VCVC III LLC
		By VCVC Management III LLC, its Manager
		By Cougar Investment Holdings LLC, its Managing Member
		By:		/s/ WILLIAM BENACK
		Name:		William Benack
		Title:		Vice President