PTC THERAPEUTICS, INC. — Director's Dealing 2021

Jan 8, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: PTC THERAPEUTICS, INC. (PTCT)
CIK: 0001070081
Period of Report: 2021-01-06

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

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-01-06	Common Stock	A	9000	—	Acquired	19309	Direct
2021-01-07	Common Stock	M	3886	$38.98	Acquired	23195	Direct
2021-01-07	Common Stock	S	3886	$68.98	Disposed	19309	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2021-01-06	Stock Option (Right to Buy)	$66.49	A	52500	Acquired	2031-01-05	Common Stock (52500)	Direct
2021-01-07	Stock Option (Right to Buy)	$39.98	M	3886	Disposed	2029-10-24	Common Stock (3886)	Direct

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Stock Option (Right to Buy)	$47.49	2030-04-15	Common Stock (50000)	50000	Direct

Footnotes

F1: Restricted stock units granted on January 6, 2021 that vest in four equal installments over four years, commencing on January 6, 2022.

F2: Includes 155 shares of common stock acquired under the Issuer's employee stock purchase plan for the period ending June 30, 2020 and 154 shares of common stock acquired under the Issuer's employee stock purchase plan for the period ending December 31, 2020.

F3: This transaction was effected pursuant to a written Rule 10b5-1 plan adopted by the Reporting Person on December 2, 2020.

F4: This option was granted on January 6, 2021, and vests over four years, with 25% of the shares underlying the option vesting on January 6, 2022, and an additional 6.25% of the original number of shares underlying the option vesting at the end of each successive three-month period thereafter, beginning on April 6, 2022.

F5: This option was granted on October 25, 2019, and vests over four years, with 25% of the shares underlying the option vesting on October 28, 2020, and an additional 6.25% of the original number of shares underlying the option vesting at the end of each successive three-month period thereafter, beginning on January 28, 2021.

F6: This option was granted on April 16, 2020, and vests over four years, with 25% of the shares underlying the option vesting on April 16, 2021, and an additional 6.25% of the original number of shares underlying the option vesting at the end of each successive three-month period thereafter, beginning on July 16, 2021.