Emma Reeve - 02 Jan 2026 Form 4 Insider Report for PTC THERAPEUTICS, INC. (PTCT)

Role
Director
Signature
/s/ Avraham S. Adler, Attorney-in-Fact
Issuer symbol
PTCT
Transactions as of
02 Jan 2026
Net transactions value
-$21,624
Form type
4
Filing time
06 Jan 2026, 17:20:23 UTC
Previous filing
05 Dec 2025

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Reeve Emma Director C/O PTC THERAPEUTICS, INC., 500 WARREN CORPORATE CENTER DRIVE, WARREN /s/ Avraham S. Adler, Attorney-in-Fact 06 Jan 2026 0001680329

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction PTCT Common Stock Award $0 +4,000 +60% $0.000000 10,666 02 Jan 2026 Direct F1
transaction PTCT Common Stock Options Exercise $34,160 +734 +6.9% $46.54 11,400 05 Jan 2026 Direct F2
transaction PTCT Common Stock Sale $55,784 -734 -6.4% $76.00 10,666 05 Jan 2026 Direct F2

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 +3,475 $0.000000 3,475 02 Jan 2026 Common Stock 3,475 $76.74 Direct F3
transaction PTCT Stock Option (Right to Buy) Options Exercise $0 -734 -100% $0.000000 0 05 Jan 2026 Common Stock 734 $46.54 Direct F2, F4
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.

Transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c).

Explanation of Responses:

Id Content
F1 Restricted stock units granted on January 2, 2026 that vest over one year, with five-twelfths (5/12) of the shares underlying the RSUs vesting on June 2, 2026 and the remaining seven-twelfths (7/12) of the original shares underlying the RSUs vesting on January 2, 2027.
F2 This transaction was effected pursuant to a written Rule 10b5-1 plan adopted by the Reporting Person on March 4, 2025.
F3 This option was granted on January 2, 2026 and vests over one year in twelve equal monthly installments, commencing on February 2, 2026.
F4 Currently exercisable.