Matthew B. Klein, CEO of PTC Therapeutics ($PTCT), sold company shares on the open market nine times over the past year, totaling about $3.1 million. His most recent sale occurred on March 12, 2026. These sales rank 2,663rd among 11,678 individual insiders in our database, where the average is $8.6 million across 6.37 transactions. Klein made no open market purchases in the last 365 days.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| March 11, 2026 | PTC THERAPEUTICS, INC. | $PTCT | Klein Matthew B. | CHIEF EXECUTIVE OFFICER | A | Common Stock | 12500 | $0.00 | 399,582.0000 | 88,311,494 | 3.23% | 0.01% |
| March 12, 2026 | PTC THERAPEUTICS, INC. | $PTCT | Klein Matthew B. | CHIEF EXECUTIVE OFFICER | S | Common Stock | 2662 | $64.08 | 396,920.0000 | 88,311,494 | 0.67% | 0.00% |
| Feb. 18, 2026 | PTC THERAPEUTICS, INC. | $PTCT | Klein Matthew B. | CHIEF EXECUTIVE OFFICER | S | Common Stock | 7371 | $69.36 | 387,082.0000 | 88,311,494 | 1.87% | 0.01% |
| Jan. 8, 2026 | PTC THERAPEUTICS, INC. | $PTCT | Klein Matthew B. | CHIEF EXECUTIVE OFFICER | S | Common Stock | 2514 | $76.45 | 394,453.0000 | 88,311,494 | 0.63% | 0.00% |
| Jan. 6, 2026 | PTC THERAPEUTICS, INC. | $PTCT | Klein Matthew B. | CHIEF EXECUTIVE OFFICER | S | Common Stock | 5149 | $76.95 | 399,983.0000 | 88,311,494 | 1.27% | 0.01% |
| Jan. 7, 2026 | PTC THERAPEUTICS, INC. | $PTCT | Klein Matthew B. | CHIEF EXECUTIVE OFFICER | S | Common Stock | 3016 | $77.48 | 396,967.0000 | 88,311,494 | 0.75% | 0.00% |
| Jan. 2, 2026 | PTC THERAPEUTICS, INC. | $PTCT | Klein Matthew B. | CHIEF EXECUTIVE OFFICER | A | Stock Option (Right to Buy) | 157500 | $0.00 | 157,500.0000 | 88,311,494 | 9999.99% | 0.18% |
| Jan. 2, 2026 | PTC THERAPEUTICS, INC. | $PTCT | Klein Matthew B. | CHIEF EXECUTIVE OFFICER | A | Common Stock | 63000 | $0.00 | 405,132.0000 | 88,311,494 | 18.41% | 0.07% |
| Dec. 30, 2025 | PTC THERAPEUTICS, INC. | $PTCT | Klein Matthew B. | CHIEF EXECUTIVE OFFICER | S | Common Stock | 8089 | $76.64 | 341,875.0000 | 87,115,369 | 2.31% | 0.01% |
| Dec. 2, 2025 | PTC THERAPEUTICS, INC. | $PTCT | Klein Matthew B. | CHIEF EXECUTIVE OFFICER | S | Common Stock | 3428 | $79.07 | 349,964.0000 | 87,115,369 | 0.97% | 0.00% |
| Dec. 1, 2025 | PTC THERAPEUTICS, INC. | $PTCT | Klein Matthew B. | CHIEF EXECUTIVE OFFICER | A | Common Stock | 15625 | $0.00 | 353,392.0000 | 87,115,369 | 4.63% | 0.02% |
| Aug. 5, 2025 | PTC THERAPEUTICS, INC. | $PTCT | Klein Matthew B. | CHIEF EXECUTIVE OFFICER | S | Common Stock | 10739 | $51.74 | 337,767.0000 | 78,151,240 | 3.08% | 0.01% |
| Aug. 1, 2025 | PTC THERAPEUTICS, INC. | $PTCT | Klein Matthew B. | CHIEF EXECUTIVE OFFICER | A | Common Stock | 75000 | $0.00 | 348,506.0000 | 78,151,240 | 27.42% | 0.10% |
| May 22, 2025 | ClearPoint Neuro, Inc. | $CLPT | Klein Matthew B. | Not found | A | Restricted Stock Units | 12417 | $0.00 | 12,417.0000 | 27,980,184 | 9999.99% | 0.04% |
| May 16, 2025 | ClearPoint Neuro, Inc. | $CLPT | Klein Matthew B. | Not found | M | Common Stock | 21093 | $0.00 | 50,518.0000 | 27,980,184 | 71.68% | 0.08% |
| May 16, 2025 | ClearPoint Neuro, Inc. | $CLPT | Klein Matthew B. | Not found | M | Restricted Stock Units | 21093 | $0.00 | 0.0000 | 27,980,184 | 100.00% | 0.08% |
| April 22, 2025 | PTC THERAPEUTICS, INC. | $PTCT | Klein Matthew B. | CHIEF EXECUTIVE OFFICER | S | Common Stock | 2804 | $48.74 | 273,234.0000 | 86,385,922 | 1.02% | 0.00% |
| Feb. 20, 2025 | PTC THERAPEUTICS, INC. | $PTCT | Klein Matthew B. | CHIEF EXECUTIVE OFFICER | S | Common Stock | 3895 | $50.12 | 276,038.0000 | 76,845,055 | 1.39% | 0.01% |
| Feb. 19, 2025 | PTC THERAPEUTICS, INC. | $PTCT | Klein Matthew B. | CHIEF EXECUTIVE OFFICER | S | Common Stock | 3897 | $50.10 | 279,933.0000 | 76,845,055 | 1.37% | 0.01% |
| Jan. 7, 2025 | PTC THERAPEUTICS, INC. | $PTCT | Klein Matthew B. | CHIEF EXECUTIVE OFFICER | S | Common Stock | 2142 | $45.34 | 286,232.0000 | 76,845,055 | 0.74% | 0.00% |
| Jan. 8, 2025 | PTC THERAPEUTICS, INC. | $PTCT | Klein Matthew B. | CHIEF EXECUTIVE OFFICER | S | Common Stock | 2402 | $44.50 | 283,830.0000 | 76,845,055 | 0.84% | 0.00% |
| Jan. 3, 2025 | PTC THERAPEUTICS, INC. | $PTCT | Klein Matthew B. | CHIEF EXECUTIVE OFFICER | A | Stock Option (Right to Buy) | 175000 | $0.00 | 175,000.0000 | 76,845,055 | 9999.99% | 0.23% |
| Jan. 3, 2025 | PTC THERAPEUTICS, INC. | $PTCT | Klein Matthew B. | CHIEF EXECUTIVE OFFICER | A | Common Stock | 70000 | $0.00 | 288,374.0000 | 76,845,055 | 32.06% | 0.09% |
| Dec. 31, 2024 | PTC THERAPEUTICS, INC. | $PTCT | Klein Matthew B. | CHIEF EXECUTIVE OFFICER | S | Common Stock | 8279 | $45.16 | 217,528.0000 | 76,925,523 | 3.67% | 0.01% |
| May 16, 2024 | ClearPoint Neuro, Inc. | $CLPT | Klein Matthew B. | Director | A | Restricted Stock Units | 21093 | $0.00 | 21,093.0000 | 27,416,345 | 9999.99% | 0.08% |
| May 14, 2024 | ClearPoint Neuro, Inc. | $CLPT | Klein Matthew B. | Director | M | Common Stock | 17153 | $0.00 | 29,425.0000 | 27,416,345 | 139.77% | 0.06% |
| May 14, 2024 | ClearPoint Neuro, Inc. | $CLPT | Klein Matthew B. | Director | M | Restricted Stock Units | 17153 | $0.00 | 0.0000 | 27,416,345 | 100.00% | 0.06% |
| April 19, 2024 | PTC THERAPEUTICS, INC. | $PTCT | Klein Matthew B. | CHIEF EXECUTIVE OFFICER | S | Common Stock | 3361 | $24.89 | 225,807.0000 | 76,496,127 | 1.47% | 0.00% |
| April 17, 2024 | PTC THERAPEUTICS, INC. | $PTCT | Klein Matthew B. | CHIEF EXECUTIVE OFFICER | S | Common Stock | 1307 | $25.14 | 229,168.0000 | 76,496,127 | 0.57% | 0.00% |
| Feb. 15, 2024 | PTC THERAPEUTICS, INC. | $PTCT | Klein Matthew B. | CHIEF EXECUTIVE OFFICER | A | Stock Option (Right to Buy) | 175000 | $0.00 | 175,000.0000 | 74,838,292 | 9999.99% | 0.23% |
| Feb. 15, 2024 | PTC THERAPEUTICS, INC. | $PTCT | Klein Matthew B. | CHIEF EXECUTIVE OFFICER | A | Common Stock | 70000 | $0.00 | 230,475.0000 | 74,838,292 | 43.62% | 0.09% |
| Jan. 9, 2024 | PTC THERAPEUTICS, INC. | $PTCT | Klein Matthew B. | CHIEF EXECUTIVE OFFICER | S | Common Stock | 5443 | $29.01 | 160,475.0000 | 74,838,292 | 3.28% | 0.01% |
| Jan. 8, 2024 | PTC THERAPEUTICS, INC. | $PTCT | Klein Matthew B. | CHIEF EXECUTIVE OFFICER | S | Common Stock | 2237 | $28.64 | 165,918.0000 | 74,838,292 | 1.33% | 0.00% |
| Jan. 5, 2024 | PTC THERAPEUTICS, INC. | $PTCT | Klein Matthew B. | CHIEF EXECUTIVE OFFICER | S | Common Stock | 10107 | $27.15 | 168,155.0000 | 74,838,292 | 5.67% | 0.01% |
| Dec. 28, 2023 | PTC THERAPEUTICS, INC. | $PTCT | Klein Matthew B. | CHIEF EXECUTIVE OFFICER | A | Common Stock | 75000 | $0.00 | 177,961.0000 | 75,377,997 | 72.84% | 0.10% |
| April 18, 2023 | PTC THERAPEUTICS, INC. | $PTCT | Klein Matthew B. | CHIEF EXECUTIVE OFFICER | A | Stock Option (Right to Buy) | 65000 | $0.00 | 65,000.0000 | 73,729,284 | 9999.99% | 0.09% |
| April 18, 2023 | PTC THERAPEUTICS, INC. | $PTCT | Klein Matthew B. | CHIEF EXECUTIVE OFFICER | S | Common Stock | 1211 | $52.04 | 102,645.0000 | 73,729,284 | 1.17% | 0.00% |
| April 18, 2023 | PTC THERAPEUTICS, INC. | $PTCT | Klein Matthew B. | CHIEF EXECUTIVE OFFICER | A | Common Stock | 26000 | $0.00 | 103,856.0000 | 73,729,284 | 33.39% | 0.04% |
| Jan. 10, 2023 | PTC THERAPEUTICS, INC. | $PTCT | Klein Matthew B. | CHIEF OPERATING OFFICER | S | Common Stock | 2273 | $42.93 | 80,100.0000 | 71,728,634 | 2.76% | 0.00% |
| Jan. 11, 2023 | PTC THERAPEUTICS, INC. | $PTCT | Klein Matthew B. | CHIEF OPERATING OFFICER | S | Common Stock | 2244 | $44.36 | 77,856.0000 | 71,728,634 | 2.80% | 0.00% |
| Jan. 9, 2023 | PTC THERAPEUTICS, INC. | $PTCT | Klein Matthew B. | CHIEF OPERATING OFFICER | S | Common Stock | 731 | $41.66 | 82,373.0000 | 71,728,634 | 0.88% | 0.00% |
| Jan. 5, 2023 | PTC THERAPEUTICS, INC. | $PTCT | Klein Matthew B. | CHIEF OPERATING OFFICER | A | Common Stock | 26000 | $0.00 | 83,104.0000 | 71,728,634 | 45.53% | 0.04% |
| Jan. 5, 2023 | PTC THERAPEUTICS, INC. | $PTCT | Klein Matthew B. | CHIEF OPERATING OFFICER | A | Stock Option (Right to Buy) | 65000 | $0.00 | 65,000.0000 | 71,728,634 | 9999.99% | 0.09% |