Christine Marie Utter - Jan 7, 2022 Form 4 Insider Report for PTC THERAPEUTICS, INC. (PTCT)

Role: SVP, Finance & CAO
Signature: /s/ Avraham S. Adler, attorney-in-fact
Stock symbol: PTCT
Transactions as of: Jan 7, 2022
Transactions value $: -$28,778
Form type: 4
Date filed: 1/11/2022, 03:21 PM
Next filing: Jan 20, 2022

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	PTCT	Common Stock	Sale	-$28.8K	-747	-4.39%	$38.53	16.3K	Jan 7, 2022	Direct	F1, F2
transaction	PTCT	Common Stock	Award	$0	+11.6K	+71.37%	$0.00	27.9K	Jan 7, 2022	Direct	F3

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	PTCT	Stock Option (Right to Buy)	Award	$0	+43.5K		$0.00	43.5K	Jan 7, 2022	Common Stock	43.5K	$38.10	Direct	F4

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Represents shares automatically sold pursuant to an irrevocable sell to cover election to satisfy tax withholding obligations in connection with the vesting of 2,175 RSUs from a January 6, 2021 grant of 8,700 RSUs.
F2	Includes 206 shares of common stock acquired under the Issuer's employee stock purchase plan for the period ending June 30, 2021 and 285 shares of common stock acquired under the Issuer's employee stock purchase plan for the period ending December 31, 2021.
F3	Restricted stock units granted on January 7, 2022 that vest in four equal installments over four years, commencing on January 7, 2023.
F4	This option was granted on January 7, 2022, and vests over four years, with 25% of the shares underlying the option vesting on January 7, 2023, 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 7, 2023.