Neil Gregory Almstead - 05 Mar 2026 Form 4 Insider Report for PTC THERAPEUTICS, INC. (PTCT)

Signature
/s/ Avraham S. Adler, Attorney-in-Fact
Issuer symbol
PTCT
Transactions as of
05 Mar 2026
Net transactions value
-$252,823
Form type
4
Filing time
09 Mar 2026, 17:20:05 UTC
Previous filing
20 Feb 2026

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Almstead Neil Gregory CHIEF TECHNICAL OPS OFFICER C/O PTC THERAPEUTICS, INC., 500 WARREN CORPORATE CENTER DRIVE, WARREN /s/ Avraham S. Adler, Attorney-in-Fact 09 Mar 2026 0001578850

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction PTCT Common Stock Sale $252,823 -3,989 -59% $63.38 2,737 05 Mar 2026 By Spouse F1
holding PTCT Common Stock 112,140 05 Mar 2026 Direct
* 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 This transaction was effected pursuant to a written Rule 10b5-1 plan adopted by the reporting person on November 26, 2025.