Through the 90-day period concluding December 12, 2025, Ptc Therapeutics's top three insider stakeholders include Chief Executive Officer Matthew B. Klein (349.96K shares), Chief Technical Ops Officer Neil Gregory Almstead (106.53K shares), Exec. VP And Clo Mark Elliott Boulding (103.90K shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| Matthew B. Klein | Chief Executive Officer | 349,964 | 03 Dec, 2025 |
| Stuart Walter Peltz | Chief Executive Officer | 221,865 | 02 Feb, 2023 |
| Michael Schmertzler | 131,266 | 07 Jan, 2025 | |
| Neil Gregory Almstead | Chief Technical Ops Officer | 106,532 | 26 Nov, 2025 |
| Mark Elliott Boulding | Exec. VP And Clo | 103,901 | 19 Nov, 2025 |
| Lee Scott Golden | EVP & Chief Medical Officer | 75,997 | 04 Apr, 2025 |
| Eric Pauwels | Chief Business Officer | 72,912 | 09 Sep, 2025 |
| Pierre Gravier | Chief Financial Officer | 71,920 | 17 Jul, 2025 |
| Christine Marie Utter | SVP And Chief Accounting Officer | 62,564 | 21 Feb, 2025 |
| Emily Luisa Hill | Chief Financial Officer | 38,925 | 29 Mar, 2023 |
| Dawn Svoronos | 29,017 | 10 Jun, 2022 | |
| Jerome B Zeldis | 18,500 | 07 Jan, 2025 | |
| Glenn Jr Md Phd Steele | 18,500 | 07 Jan, 2025 | |
| Mary L. Smith | 17,813 | 07 Jan, 2025 | |
| Allan Steven Jacobson | 17,451 | 26 Nov, 2025 | |
| Alethia Young | 17,067 | 07 Jan, 2025 | |
| David P Southwell | 16,850 | 11 Sep, 2025 | |
| William F. Jr. Bell | 10,333 | 16 Feb, 2024 | |
| Stephanie Okey | 8,000 | 21 Nov, 2025 | |
| Emma Reeve | 6,666 | 05 Dec, 2025 |
* 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 |
|---|---|---|---|---|---|---|---|---|
| 03 Dec, 2025 | Emma Reeve | Common Stock | A | 733 | $46.54 | 7,399 | D | M |
| 03 Dec, 2025 | Emma Reeve | Common Stock | D | 733 | $78.62 | 6,666 | D | S |
| 01 Dec, 2025 | Matthew B. Klein | Common Stock | A | 15,625 | $0.00 | 353,392 | D | A |
| 02 Dec, 2025 | Matthew B. Klein | Common Stock | D | 3,428 | $79.07 | 349,964 | D | S |
| 25 Nov, 2025 | Neil Gregory Almstead | Common Stock | A | 2,475 | $18.01 | 103,100 | D | M |
| 25 Nov, 2025 | Neil Gregory Almstead | Common Stock | D | 911 | $82.63 | 102,189 | D | S |
| 25 Nov, 2025 | Neil Gregory Almstead | Common Stock | D | 990 | $83.44 | 101,199 | D | S |
| 25 Nov, 2025 | Neil Gregory Almstead | Common Stock | D | 574 | $84.67 | 100,625 | D | S |
| 25 Nov, 2025 | Neil Gregory Almstead | Common Stock | A | 2,020 | $33.02 | 102,645 | D | M |
| 25 Nov, 2025 | Neil Gregory Almstead | Common Stock | D | 689 | $82.63 | 101,956 | D | S |
| 25 Nov, 2025 | Neil Gregory Almstead | Common Stock | D | 862 | $83.35 | 101,094 | D | S |
| 25 Nov, 2025 | Neil Gregory Almstead | Common Stock | D | 289 | $84.61 | 100,805 | D | S |
| 25 Nov, 2025 | Neil Gregory Almstead | Common Stock | D | 180 | $85.17 | 100,625 | D | S |
| 25 Nov, 2025 | Neil Gregory Almstead | Common Stock | A | 8,410 | $18.01 | 109,035 | D | M |
| 25 Nov, 2025 | Neil Gregory Almstead | Common Stock | D | 2,790 | $82.82 | 106,245 | D | S |
| 25 Nov, 2025 | Neil Gregory Almstead | Common Stock | D | 3,663 | $83.41 | 102,582 | D | S |
| 25 Nov, 2025 | Neil Gregory Almstead | Common Stock | D | 1,757 | $84.56 | 100,825 | D | S |
| 25 Nov, 2025 | Neil Gregory Almstead | Common Stock | D | 200 | $85.37 | 100,625 | D | S |
| 25 Nov, 2025 | Neil Gregory Almstead | Common Stock | A | 47,624 | $33.02 | 148,249 | D | M |
| 25 Nov, 2025 | Neil Gregory Almstead | Common Stock | D | 13,514 | $82.55 | 134,735 | D | S |