18 insiders reported 385 Form 4 transactions for PTC THERAPEUTICS, INC. (PTCT) over the past 18 months (most recent 2026-08-21). Recent activity: SCHMERTZLER MICHAEL (Director) Sell 5,335 shares, SCHMERTZLER MICHAEL (Director) Sell 7,165 shares, SCHMERTZLER MICHAEL (Director) Sell 9,419 shares, SCHMERTZLER MICHAEL (Director) Sell 2,390 shares, SCHMERTZLER MICHAEL (Director) Sell 691 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-21 | SCHMERTZLER MICHAEL | Director | Sell | 5,335 | $388,708 |
| 2026-08-21 | SCHMERTZLER MICHAEL | Director | Sell | 7,165 | $527,846 |
| 2026-08-21 | SCHMERTZLER MICHAEL | Director | Sell | 9,419 | $666,677 |
| 2026-08-21 | SCHMERTZLER MICHAEL | Director | Sell | 2,390 | $171,793 |
| 2026-08-21 | SCHMERTZLER MICHAEL | Director | Sell | 691 | $50,388 |
| 2026-08-19 | Boulding Mark Elliott | EXEC. VP AND CLO | Buy | 2,813 | $72,266 |
| 2026-08-19 | Boulding Mark Elliott | EXEC. VP AND CLO | Sell | 1,844 | $133,487 |
| 2026-08-19 | Boulding Mark Elliott | EXEC. VP AND CLO | Sell | 969 | $70,640 |
| 2026-08-06 | Klein Matthew B. | CHIEF EXECUTIVE OFFICER | Sell | 10,292 | $705,722 |
| 2026-07-30 | Sollie-Zetlmayer Hege Elisabeth | Director | Buy | 4,000 | $0 |
| 2026-07-30 | Sollie-Zetlmayer Hege Elisabeth | Director | Buy | 2,000 | $0 |
| 2026-07-16 | Gravier Pierre | CHIEF FINANCIAL OFFICER | Sell | 3,494 | $280,743 |
| 2026-07-13 | Smith Mary L. | Director | Buy | 10,000 | $429,500 |
| 2026-07-13 | Almstead Neil Gregory | CHIEF TECHNICAL OPS OFFICER | Buy | 2,464 | $114,675 |
| 2026-07-13 | Smith Mary L. | Director | Sell | 10,000 | $900,000 |
| 2026-07-13 | Almstead Neil Gregory | CHIEF TECHNICAL OPS OFFICER | Sell | 2,464 | $222,376 |
| 2026-07-13 | Smith Mary L. | Director | Buy | 5,834 | $250,570 |
| 2026-07-13 | Smith Mary L. | Director | Sell | 5,834 | $525,060 |
| 2026-07-08 | Boulding Mark Elliott | EXEC. VP AND CLO | Buy | 2,266 | $89,326 |
| 2026-07-08 | Almstead Neil Gregory | CHIEF TECHNICAL OPS OFFICER | Buy | 811 | $30,899 |
| 2026-07-08 | Boulding Mark Elliott | EXEC. VP AND CLO | Sell | 313 | $26,010 |
| 2026-07-08 | Almstead Neil Gregory | CHIEF TECHNICAL OPS OFFICER | Sell | 426 | $36,329 |
| 2026-07-08 | Boulding Mark Elliott | EXEC. VP AND CLO | Sell | 833 | $70,314 |
| 2026-07-08 | Almstead Neil Gregory | CHIEF TECHNICAL OPS OFFICER | Sell | 385 | $33,241 |
| 2026-07-08 | Boulding Mark Elliott | EXEC. VP AND CLO | Sell | 519 | $44,551 |
Source: SEC Form 4 filings · as of 2026-08-21