FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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(Print or Type Responses)

1. Name and Address of Reporting Person * Koppel Adam   2. Issuer Name and Ticker or Trading Symbol PTC THERAPEUTICS, INC. [PTCT] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director _____ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) C/O BROOKISDE CAPITAL MANAGEMENT, LLC, JOHN HANCOCK TOWER, 200 CLARENDON ST. 3. Date of Earliest Transaction (Month/Day/Year) 06/25/2013 (Street) BOSTON, MA 02116 4. If Amendment, Date 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 (City) (State) (Zip) 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 Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 06/25/2013   C   1,083,333 A (1) 1,083,333 I See Footnote (2) Common Stock 06/25/2013   P   1,250,000 A $ 15 2,333,333 I See Footnote (3)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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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 Underlying Securities (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 of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Series Four Senior Preferred Stock

(1)

03/07/2013

A

1,083,333

(1)

(1)

Common Stock

1,083,333

$ 12

1,083,333

I

See Footnote (2)

Series Four Senior Preferred Stock

(1)

06/25/2013

C

1,083,333

(1)

(1)

Common Stock

1,083,333

$ 0

0

I

See Footnote (2)

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Koppel Adam C/O BROOKISDE CAPITAL MANAGEMENT, LLC JOHN HANCOCK TOWER, 200 CLARENDON ST. BOSTON, MA 02116	X

Signatures

/s/ Dr. Adam Koppel		06/27/2013
**Signature of Reporting Person		Date

Explanation of Responses:

*	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).
(1)	All outstanding shares of Series Four Senior Preferred Stock were automatically converted into Common Stock upon the closing of the Issuer's initial public offering, for no additional consideration.
(2)	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. ("BCP Fund"). By virtue of these relationships, Dr. Koppel may be deemed to beneficially own the securities held by the BCP Fund. Dr. Koppel disclaims beneficial ownership of such securities except to the extent of its pecuniary interest therein.
(3)	BCM is also the sole general partner of Brookside Capital Investors II, L.P. ("BCI II"). BCI II is the sole general partner of Brookside Capital Trading Fund, L.P. ("BCT Fund"). By virtue of these relationships, Dr. Koppel may be deemed to beneficially own the securities held by the BCT Fund. Dr. Koppel disclaims beneficial ownership of such securities except to the extent of its pecuniary interest therein.

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