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

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1. Name and Address of Reporting Person* Koppel Adam (Last) (First) (Middle) C/O BROOKSIDE CAPITAL MANAGEMENT, LLC JOHN HANCOCK TOWER, 200 CLARENDON ST. (Street) BOSTON MA 02116 (City) (State) (Zip)	2. Date of Event Requiring Statement (Month/Day/Year) 06/19/2013	3. Issuer Name and Ticker or Trading Symbol PTC THERAPEUTICS, INC. [ PTCT ]
		4. Relationship of Reporting Person(s) to Issuer (Check all applicable) X Director 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) X Form filed by One Reporting Person 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)

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 Four Senior Preferred Stock	(2)	(2)	Common Stock	1,083,333	(2)	I	SEE FOOTNOTE(1)

Explanation of Responses:

1. Dr. Adam Koppel is a Managing Director of Brookside Capital Management, LLC ("BCM"). BCM is the sole general partner of Brookside Capital Investors, L.P. ("BCI"), which is the general partner of Brookside Capital Partners Fund, L.P. (the "Fund"). By virtue of these relationships, Dr. Koppel may be deemed to beneficially own the securities held by the Fund. Mr. Koppel disclaims beneficial ownership of such securities except to the extent of its pecuniary interest therein.

2. The Series Four Preferred Stock has no expiration date. Each share of Series Four Preferred Stock will convert automatically into one share of Common Stock upon the closing of PTC Therapeutics, Inc.'s inital public offering without payment of further consideration.

	Adam Koppel	06/19/2013
	** 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).
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