PTC THERAPEUTICS, INC. — Director's Dealing 2021

Apr 21, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: PTC THERAPEUTICS, INC. (PTCT)
CIK: 0001070081
Period of Report: 2021-04-19

Reporting Person: Klein Matthew B. (Chief Development Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-04-19	Common Stock	S	859	$48.168	Disposed	18450	Direct
2021-04-20	Common Stock	S	1444	$46.582	Disposed	17006	Direct
2021-04-20	Common Stock	S	197	$47.919	Disposed	16809	Direct

Footnotes

F1: Represents shares automatically sold pursuant to an irrevocable sell to cover election to satisfy tax withholding obligations in connection with the vesting of 2,500 RSUs from a April 16, 2020 grant of 10,000 RSUs.

F2: This transaction was effected pursuant to a written Rule 10b5-1 plan adopted by the Reporting Person on March 10, 2021.

F3: This price represents the weighted average price of sale transactions that were executed in multiple trades at prices ranging from $46.24 to $47.06 per share. The Reporting Person hereby undertakes, upon request by the SEC staff, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F4: This price represents the weighted average price of sale transactions that were executed in multiple trades at prices ranging from $47.68 to $48.17 per share. The Reporting Person hereby undertakes, upon request by the SEC staff, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.