PTC THERAPEUTICS, INC. — Director's Dealing 2013

Jun 28, 2013

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: PTC THERAPEUTICS, INC. (PTCT)
CIK: 0001070081
Period of Report: 2013-06-25

Reporting Person: HBM Healthcare Investments (Cayman) Ltd. (10% Owner)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2013-06-25	Common Stock	C	280178	—	Acquired	280178	Direct
2013-06-25	Common Stock	C	1561317	—	Acquired	1841495	Direct
2013-06-25	Common Stock	P	666676	$15.00	Acquired	2508171	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2013-06-25	Series Four Senior Preferred Stock	$0	C	280178	Disposed		Common Stock (280178)	Direct
2013-06-25	Series Five Junior Preferred Stock	$0	C	1561317	Disposed		Common Stock (1561317)	Direct

Footnotes

F1: Each share of issuer's Series Four Senior Preferred Stock converted into 1 share of the issuer's Common Stock on June 25, 2013 pursuant to an election by the holders of a majority of the shares of the issuer's preferred stock in connection with the closing of the issuer's firm commitment underwritten public offerng pursuant to a registration statement on Form S-1 under the Securities Act of 1933, as amended (the "IPO") and had no expiration date.

F2: Each share of issuer's Series Five Junior Preferred Stock converted into 1 share of the issuer's Common Stock on June 25, 2013 pursuant to an election by the holders of a majority of the shares of the issuer's preferred stock in connection with the closing of the issuer's IPO and had no expiration date.