PTCT (PTC Therapeutics, Inc.)
Insider Trading Activity
Every open-market purchase and sale reported by PTCT officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-09-11 | MICHAEL SCHMERTZLER | Director | Sell | — | — |
| 2026-08-28 | MICHAEL SCHMERTZLER | Director | Sell | — | — |
| 2026-08-21 | MICHAEL SCHMERTZLER | Director | Sell | — | — |
| 2026-08-19 | Mark Elliott Boulding | EXEC. VP AND CLO | MIXED | — | — |
| 2026-08-06 | Matthew B. Klein | CHIEF EXECUTIVE OFFICER | Sell | — | — |
| 2026-08-06 | Matthew B. Klein | CHIEF EXECUTIVE OFFICER | Sell | — | — |
| 2026-07-30 | Hege Elisabeth Sollie-Zetlmayer | Director | A | — | — |
| 2026-07-16 | Pierre Gravier | CHIEF FINANCIAL OFFICER | Sell | — | — |
| 2026-07-13 | Mary L. Smith | Director | MIXED | — | — |
| 2026-07-13 | Neil Gregory Almstead | CHIEF TECHNICAL OPS OFFICER | MIXED | — | — |
| 2026-07-08 | Mark Elliott Boulding | EXEC. VP AND CLO | MIXED | — | — |
| 2026-07-08 | Neil Gregory Almstead | CHIEF TECHNICAL OPS OFFICER | MIXED | — | — |
| 2026-06-26 | Neil Gregory Almstead | CHIEF TECHNICAL OPS OFFICER | MIXED | — | — |
| 2026-06-24 | Neil Gregory Almstead | CHIEF TECHNICAL OPS OFFICER | MIXED | — | — |
| 2026-06-22 | Christine Marie Utter | SVP, CHIEF ACCOUNTING OFFICER | MIXED | — | — |
| 2026-06-22 | Mark Elliott Boulding | EXEC. VP AND CLO | MIXED | — | — |
| 2026-06-12 | Eric Pauwels | CHIEF BUSINESS OFFICER | MIXED | — | — |
| 2026-05-19 | Mark Elliott Boulding | EXEC. VP AND CLO | MIXED | — | — |
| 2026-05-15 | Matthew B. Klein | CHIEF EXECUTIVE OFFICER | MIXED | — | — |
| 2026-05-12 | Mark Elliott Boulding | EXEC. VP AND CLO | MIXED | — | — |
| 2026-04-23 | Matthew B. Klein | CHIEF EXECUTIVE OFFICER | Sell | — | — |
| 2026-04-08 | Mark Elliott Boulding | EXEC. VP AND CLO | MIXED | — | — |
| 2026-04-06 | Lee Scott Golden | EVP & CHIEF MEDICAL OFFICER | Sell | — | — |
| 2026-04-03 | Neil Gregory Almstead | CHIEF TECHNICAL OPS OFFICER | Sell | — | — |
| 2026-03-26 | Jessica Caroline Chutter | Director | A | — | — |
| 2026-03-13 | Matthew B. Klein | CHIEF EXECUTIVE OFFICER | MIXED | — | — |
| 2026-03-12 | Stephanie Okey | Director | MIXED | — | — |
| 2026-03-09 | Stephanie Okey | Director | Sell | — | — |
| 2026-03-09 | Lee Scott Golden | EVP & CHIEF MEDICAL OFFICER | Sell | — | — |
| 2026-03-09 | Neil Gregory Almstead | CHIEF TECHNICAL OPS OFFICER | Sell | — | — |
| 2026-02-23 | Mark Elliott Boulding | EXEC. VP AND CLO | Sell | — | — |
| 2026-02-20 | Eric Pauwels | CHIEF BUSINESS OFFICER | Sell | — | — |
| 2026-02-20 | Pierre Gravier | CHIEF FINANCIAL OFFICER | Sell | — | — |
| 2026-02-20 | Lee Scott Golden | EVP & CHIEF MEDICAL OFFICER | Sell | — | — |
| 2026-02-20 | Neil Gregory Almstead | CHIEF TECHNICAL OPS OFFICER | Sell | — | — |
| 2026-02-20 | Christine Marie Utter | SVP, CHIEF ACCOUNTING OFFICER | Sell | — | — |
| 2026-02-20 | Matthew B. Klein | CHIEF EXECUTIVE OFFICER | Sell | — | — |
| 2026-02-19 | Mark Elliott Boulding | EXEC. VP AND CLO | MIXED | — | — |
| 2026-01-12 | Matthew B. Klein | CHIEF EXECUTIVE OFFICER | Sell | — | — |
| 2026-01-12 | Neil Gregory Almstead | CHIEF TECHNICAL OPS OFFICER | Sell | — | — |
| 2026-01-12 | Christine Marie Utter | SVP, CHIEF ACCOUNTING OFFICER | Sell | — | — |
| 2026-01-12 | Lee Scott Golden | EVP & CHIEF MEDICAL OFFICER | Sell | — | — |
| 2026-01-12 | Eric Pauwels | CHIEF BUSINESS OFFICER | Sell | — | — |
| 2026-01-12 | Mark Elliott Boulding | EXEC. VP AND CLO | Sell | — | — |
| 2026-01-08 | Christine Marie Utter | SVP, CHIEF ACCOUNTING OFFICER | Sell | — | — |
| 2026-01-08 | Eric Pauwels | CHIEF BUSINESS OFFICER | Sell | — | — |
| 2026-01-08 | Neil Gregory Almstead | CHIEF TECHNICAL OPS OFFICER | Sell | — | — |
| 2026-01-08 | Pierre Gravier | CHIEF FINANCIAL OFFICER | Sell | — | — |
| 2026-01-08 | Matthew B. Klein | CHIEF EXECUTIVE OFFICER | Sell | — | — |
| 2026-01-08 | Lee Scott Golden | EVP & CHIEF MEDICAL OFFICER | Sell | — | — |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| — | 10%+ Owner | 2,441,504 | — |
| — | Director | 1,490,432 | — |
| — | Director | 1,083,333 | — |
| — | Director | 1,050,104 | — |
| — | Director | 898,664 | — |
| — | CHIEF EXECUTIVE OFFICER | 383,868 | — |
| — | — | 276,853 | — |
| — | CHIEF EXECUTIVE OFFICER | 221,865 | — |
| — | EXEC. VP AND CLO | 105,272 | — |
| — | CHIEF BUSINESS OFFICER | 90,977 | — |
| — | SVP, CHIEF ACCOUNTING OFFICER | 89,885 | — |
| — | CHIEF FINANCIAL OFFICER | 83,986 | — |
| — | EVP & CHIEF MEDICAL OFFICER | 79,115 | — |
| — | CHIEF TECHNICAL OPS OFFICER | 63,198 | — |
| — | Chief Operating Officer | 57,466 | — |
| — | Director | 52,526 | — |
| — | Chief Commercial Officer | 42,955 | — |
| — | President | 41,590 | — |
| — | CHIEF FINANCIAL OFFICER | 38,925 | — |
| — | Chief Financial Officer | 37,850 | — |
| — | Director | 29,017 | — |
| — | Director | 22,500 | — |
| — | Director | 22,500 | — |
| — | Director | 21,813 | — |
| — | Director | 21,451 | — |
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the PTCT quote page; the site-wide leaderboard is on the insider transactions hub.