Christine Marie Utter - 17 Jun 2026 Form 4 Insider Report for PTC THERAPEUTICS, INC. (PTCT)

Reporting relationship: SVP, CHIEF ACCOUNTING OFFICER
Issuer ticker: PTCT
Reported as of: 17 Jun 2026
Net transaction value: -$1,487,474
SEC form: 4
Accepted by SEC: 22 Jun 2026, 17:20:07 UTC
Prior SEC filing: 20 Feb 2026
Source filing: View source filing
Reporting owner signature: /s/ Avraham S. Adler, Attorney-in-Fact

Key filing fact

Christine Marie Utter filed Form 4 for PTC THERAPEUTICS, INC. (PTCT) on 22 Jun 2026.

Key facts

This page summarizes Christine Marie Utter's Form 4 filing for PTC THERAPEUTICS, INC. (PTCT).
3 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 22 Jun 2026, 17:20.

Change

Previous filing in this sequence was filed on 20 Feb 2026.
Current net transaction value: -$1,487,474.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001707685 Primary reporting owner

Utter Christine Marie

Relationship: SVP, CHIEF ACCOUNTING OFFICER
Address: C/O PTC THERAPEUTICS, INC., 500 WARREN CORPORATE CENTER DRIVE, WARREN
Signature: /s/ Avraham S. Adler, Attorney-in-Fact
Signature date: 22 Jun 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

PTCT transaction

Common Stock

Options Exercise

Transaction value
Shares: +19,686
Change %: +28%
Price: $25.69^*
Shares after: 89,885
Date: 17 Jun 2026
Ownership: Direct
Footnotes: F1

PTCT transaction

Common Stock

Sale

Transaction value: $1,487,474
Shares: -19,686
Change %: -22%
Price: $75.56
Shares after: 70,199
Date: 17 Jun 2026
Ownership: Direct
Footnotes: F1

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

PTCT transaction Derivative

Stock Option (Right to Buy)

Options Exercise

Transaction value
Shares: -19,686
Change %: -56%
Price: $0.000000^*
Shares after: 15,314
Date: 17 Jun 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 19,686
Exercise price: $25.69
Footnotes: F1, F2

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Rule 10b5-1 trading plan

These transactions were reported as open-market trades under a Rule 10b5-1 plan. The plan lets an insider set trading instructions in advance, which can reduce the risk of trading while in possession of material nonpublic information.

Original filing language: transaction made pursuant to a contract, instruction, or written plan intended to satisfy Rule 10b5-1(c).

Explanation of responses 2 footnotes

Footnote F1

This transaction was effected pursuant to a written Rule 10b5-1 plan adopted by the Reporting Person on March 17, 2026.

Footnote F2

This option was granted on February 15, 2024, and vests over four years, with 25% of the shares underlying the option vesting on February 15, 2025, 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 May 15, 2025.