Matthew B. Klein serves as Executive at PTC THERAPEUTICS, INC., where they oversee executive responsibilities. Since joining the company, Matthew B. Klein has executed 39 insider transactions totaling $3.7M, demonstrating a bearish approach to their equity position. Their most recent transaction on Jan 8, 2026 involved selling 2,514 shares valued at $192.2K.
Matthew B. Klein currently holds 394,453 shares of PTC THERAPEUTICS, INC. (PTCT), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Matthew B. Klein has been a net seller of PTCT stock. They have purchased $0 and sold $3.7M worth of shares.
Matthew B. Klein's most recent insider trade was on Jan 8, 2026, when they sold 2,514 shares at $76.45 per share.
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| $77.48 |
| Discretionary |
| Jan 6, 2026 | PTCT | $396.2K | Sale | 5,149 | $76.95 | Discretionary |
| Dec 2, 2025 | PTCT | $271.1K | Sale | 3,428 | $79.07 | Discretionary |
| Dec 1, 2025 | PTCT | $0 | Award | 15,625 | $N/A | Discretionary |
| Aug 5, 2025 | PTCT | $555.6K | Sale | 10,739 | $51.74 | Discretionary |
| Aug 1, 2025 | PTCT | $0 | Award | 75,000 | $N/A | Discretionary |
| May 14, 2024 | CLPT | $0 | Option Exercise | 17,153 | $N/A | Discretionary |
| Apr 19, 2024 | PTCT | $83.7K | Sale | 3,361 | $24.89 | Planned |
| Apr 17, 2024 | PTCT | $32.9K | Sale | 1,307 | $25.14 | Planned |
| Feb 15, 2024 | PTCT | $0 | Award | 70,000 | $N/A | Discretionary |
| Jan 9, 2024 | PTCT | $157.9K | Sale | 5,443 | $29.01 | Planned |
| Jan 8, 2024 | PTCT | $64.1K | Sale | 2,237 | $28.64 | Planned |
| Jan 5, 2024 | PTCT | $274.4K | Sale | 10,107 | $27.15 | Planned |
| Dec 28, 2023 | PTCT | $0 | Award | 75,000 | $N/A | Discretionary |
| Apr 18, 2023 | PTCT | $63.0K | Sale | 1,211 | $52.04 | Planned |
| Apr 18, 2023 | PTCT | $0 | Award | 26,000 | $N/A | Planned |
| Jan 11, 2023 | PTCT | $99.5K | Sale | 2,244 | $44.36 | Discretionary |
| Jan 10, 2023 | PTCT | $97.6K | Sale | 2,273 | $42.93 | Discretionary |
| Jan 9, 2023 | PTCT | $30.5K | Sale | 731 | $41.66 | Discretionary |
| Jan 5, 2023 | PTCT | $0 | Award | 26,000 | $N/A | Discretionary |
| May 25, 2022 | CLPT | $0 | Award | 9,269 | $N/A | Discretionary |
| Apr 19, 2022 | PTCT | $38.1K | Sale | 897 | $42.52 | Discretionary |
| Jan 7, 2022 | PTCT | $0 | Award | 20,000 | $N/A | Discretionary |
| Jan 7, 2022 | PTCT | $29.9K | Sale | 775 | $38.53 | Discretionary |
| Jan 7, 2022 | PTCT | $0 | Award | 21,000 | $N/A | Discretionary |
| Jun 25, 2021 | CLPT | $0 | Award | 3,003 | $N/A | Discretionary |
| Apr 20, 2021 | PTCT | $67.3K | Sale | 1,444 | $46.58 | Discretionary |
| Apr 20, 2021 | PTCT | $9.4K | Sale | 197 | $47.92 | Discretionary |
| Apr 19, 2021 | PTCT | $41.4K | Sale | 859 | $48.17 | Discretionary |