Ptc Therapeutics's three largest insider shareholders as of May 04, 2026 are Matthew B. Klein (Chief Executive Officer, 394.07K shares), Stuart Walter Peltz (Chief Executive Officer, 221.87K shares), Stuart Walter Peltz (Chief Executive Officer, 221.87K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Matthew B. Klein | Chief Executive Officer | 394,070 | 0 | 23 Apr, 2026 |
| Stuart Walter Peltz | Chief Executive Officer | 166,962 | 54,903 | 02 Feb, 2023 |
| Stuart Walter Peltz | Chief Executive Officer | 166,962 | 54,903 | 02 Feb, 2023 |
| Stuart Walter Peltz | Chief Executive Officer | 166,962 | 54,903 | 02 Feb, 2023 |
| Michael Schmertzler | - | 163,266 | 0 | 06 Jan, 2026 |
| Michael Schmertzler | - | 163,266 | 0 | 06 Jan, 2026 |
| Michael Schmertzler | - | 163,266 | 0 | 06 Jan, 2026 |
| Mark Elliott Boulding | Exec. Vp And Clo | 105,212 | 0 | 08 Apr, 2026 |
| Pierre Gravier | Chief Financial Officer | 87,318 | 0 | 20 Feb, 2026 |
| Lee Scott Golden | Evp Chief Medical Officer | 79,115 | 0 | 06 Apr, 2026 |
| Eric Pauwels | Chief Business Officer | 77,122 | 0 | 20 Feb, 2026 |
| Eric Pauwels | Chief Business Officer | 77,122 | 0 | 20 Feb, 2026 |
| Eric Pauwels | Chief Business Officer | 77,122 | 0 | 20 Feb, 2026 |
| Christine Marie Utter | Svp, Chief Accounting Officer | 70,199 | 0 | 20 Feb, 2026 |
| Christine Marie Utter | Svp, Chief Accounting Officer | 70,199 | 0 | 20 Feb, 2026 |
| Christine Marie Utter | Svp, Chief Accounting Officer | 70,199 | 0 | 20 Feb, 2026 |
| Neil Gregory Almstead | Chief Technical Ops Officer | 60,137 | 0 | 03 Apr, 2026 |
| Emily Luisa Hill | Chief Financial Officer | 38,925 | 0 | 29 Mar, 2023 |
| Dawn Svoronos | - | 29,017 | 0 | 10 Jun, 2022 |
| Dawn Svoronos | - | 29,017 | 0 | 10 Jun, 2022 |
| Dawn Svoronos | - | 29,017 | 0 | 10 Jun, 2022 |
| Jerome B Zeldis | - | 22,500 | 0 | 06 Jan, 2026 |
| Glenn Jr Md Phd Steele | - | 22,500 | 0 | 06 Jan, 2026 |
| Jerome B Zeldis | - | 22,500 | 0 | 06 Jan, 2026 |
| Jerome B Zeldis | - | 22,500 | 0 | 06 Jan, 2026 |
| Glenn Jr Md Phd Steele | - | 22,500 | 0 | 06 Jan, 2026 |
| Mary L. Smith | - | 21,813 | 0 | 06 Jan, 2026 |
| Mary L. Smith | - | 21,813 | 0 | 06 Jan, 2026 |
| Mary L. Smith | - | 21,813 | 0 | 06 Jan, 2026 |
| Allan Steven Jacobson | - | 21,451 | 0 | 06 Jan, 2026 |
| Alethia Young | - | 21,067 | 0 | 06 Jan, 2026 |
| Alethia Young | - | 21,067 | 0 | 06 Jan, 2026 |
| Alethia Young | - | 21,067 | 0 | 06 Jan, 2026 |
| David P Southwell | - | 20,850 | 0 | 06 Jan, 2026 |
| David P Southwell | - | 20,850 | 0 | 06 Jan, 2026 |
| Emma Reeve | - | 10,666 | 0 | 06 Jan, 2026 |
| William F. Jr. Bell | - | 10,333 | 0 | 16 Feb, 2024 |
| Stephanie Okey | - | 8,000 | 0 | 12 Mar, 2026 |
| Jessica Caroline Chutter | - | 7,333 | 0 | 26 Mar, 2026 |
| Neil Gregory Almstead | Chief Technical Ops Officer | 0 | 2,737 | 09 Mar, 2026 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 21 Apr, 2026 | Matthew B. Klein | Common Stock | D | 2,850 | $70.91 | 394,070 | D | S |
| 21 Apr, 2026 | Matthew B. Klein | Common Stock | D | 2,850 | $70.91 | 394,070 | D | S |
| 21 Apr, 2026 | Matthew B. Klein | Common Stock | D | 2,850 | $70.91 | 394,070 | D | S |
| 21 Apr, 2026 | Matthew B. Klein | Common Stock | D | 2,850 | $70.91 | 394,070 | D | S |
| 21 Apr, 2026 | Matthew B. Klein | Common Stock | D | 2,850 | $70.91 | 394,070 | D | S |
| 06 Apr, 2026 | Mark Elliott Boulding | Common Stock | A | 2,265 | $39.42 | 107,477 | D | M |
| 06 Apr, 2026 | Mark Elliott Boulding | Common Stock | D | 822 | $68.91 | 106,655 | D | S |
| 06 Apr, 2026 | Mark Elliott Boulding | Common Stock | D | 1,443 | $69.75 | 105,212 | D | S |
| 06 Apr, 2026 | Mark Elliott Boulding | Stock Option (Right to Buy) | D | 2,265 | $0.00 | 6,798 | D | M |
| 02 Apr, 2026 | Lee Scott Golden | Common Stock | D | 829 | $67.99 | 79,115 | D | S |
| 01 Apr, 2026 | Neil Gregory Almstead | Common Stock | D | 39,393 | $68.89 | 72,747 | D | S |
| 01 Apr, 2026 | Neil Gregory Almstead | Common Stock | D | 12,530 | $69.50 | 60,217 | D | S |
| 01 Apr, 2026 | Neil Gregory Almstead | Common Stock | D | 80 | $70.30 | 60,137 | D | S |
| 24 Mar, 2026 | Jessica Caroline Chutter | Common Stock | A | 4,000 | $0.00 | 4,000 | D | A |
| 24 Mar, 2026 | Jessica Caroline Chutter | Common Stock | A | 3,333 | $0.00 | 7,333 | D | A |
| 24 Mar, 2026 | Jessica Caroline Chutter | Stock Option (Right to Buy) | A | 3,475 | $0.00 | 3,475 | D | A |
| 24 Mar, 2026 | Jessica Caroline Chutter | Stock Option (Right to Buy) | A | 2,896 | $0.00 | 2,896 | D | A |
| 11 Mar, 2026 | Matthew B. Klein | Common Stock | A | 12,500 | $0.00 | 399,582 | D | A |
| 12 Mar, 2026 | Matthew B. Klein | Common Stock | D | 2,662 | $64.08 | 396,920 | D | S |
| 10 Mar, 2026 | Stephanie Okey | Common Stock | A | 1,167 | $33.63 | 9,167 | D | M |