Neil Gregory Almstead - 06 Jan 2026 Form 4 Insider Report for PTC THERAPEUTICS, INC. (PTCT)

Role
CHIEF TECHNICAL OPS OFFICER
Signature
/s/ Avraham S. Adler, Attorney-in-Fact
Issuer symbol
PTCT
Transactions as of
06 Jan 2026
Net transactions value
-$186,098
Form type
4
Filing time
08 Jan 2026, 17:20:05 UTC
Previous filing
06 Jan 2026
Next filing
12 Jan 2026
SEC
View on sec.gov

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 08 Jan 2026 0001578850

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction PTCT Common Stock Sale $98,419 -1,279 -1.1% $76.95 117,103 06 Jan 2026 Direct F1
transaction PTCT Common Stock Sale $4,155 -54 -0.78% $76.95 6,902 06 Jan 2026 By Spouse F2
transaction PTCT Common Stock Sale $79,494 -1,026 -0.88% $77.48 116,077 07 Jan 2026 Direct F3
transaction PTCT Common Stock Sale $4,029 -52 -0.75% $77.48 6,850 07 Jan 2026 By Spouse 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 Represents shares automatically sold pursuant to an irrevocable sell to cover election entered into upon acceptance of the grant to satisfy tax withholding obligations in connection with the vesting of 4,750 RSUs from a January 3, 2025 grant of 19,000 RSUs.
F2 Represents shares automatically sold pursuant to an irrevocable sell to cover election entered into upon acceptance of the grant to satisfy tax withholding obligations in connection with the vesting of 178 RSUs from a January 3, 2025 grant of 715 RSUs.
F3 Represents shares automatically sold pursuant to an irrevocable sell to cover election entered into upon acceptance of the grant to satisfy tax withholding obligations in connection with the vesting of 4,250 RSUs from a January 5, 2023 grant of 17,000 RSUs.
F4 Represents shares automatically sold pursuant to an irrevocable sell to cover election entered into upon acceptance of the grant to satisfy tax withholding obligations in connection with the vesting of 177 RSUs from a January 5, 2023 grant of 710 RSUs.