Kenneth L. Horton serves as Executive at VERTEX PHARMACEUTICALS INC / MA, where they oversee executive responsibilities. Since joining the company, Kenneth L. Horton has executed 35 insider transactions totaling $7.7M, demonstrating a bearish approach to their equity position. Their most recent transaction on Nov 15, 2025 involved selling 5,997 shares valued at $37.5K.
Kenneth L. Horton currently holds 144,434 shares of VERTEX PHARMACEUTICALS INC / MA (VRTX), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Kenneth L. Horton has been a net seller of VRTX stock. They have purchased $0 and sold $7.7M worth of shares.
Kenneth L. Horton's most recent insider trade was on Nov 15, 2025, when they sold 5,997 shares at $6.26 per share.
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| $0.39 |
| Discretionary |
| May 23, 2024 | SENS | $0 | Award | 1,135,604 | $N/A | Discretionary |
| May 15, 2024 | SENS | $54.0K | Payment | 108,100 | $0.50 | Discretionary |
| Nov 15, 2023 | SENS | $99.6K | Payment | 163,319 | $0.61 | Discretionary |
| Jun 15, 2023 | SENS | $39.5K | Payment | 51,276 | $0.77 | Discretionary |
| May 15, 2023 | SENS | $0 | Award | 782,089 | $N/A | Discretionary |
| May 15, 2023 | SENS | $102.1K | Payment | 137,927 | $0.74 | Discretionary |
| Nov 15, 2022 | SENS | $130.4K | Payment | 104,306 | $1.25 | Discretionary |
| Jun 15, 2022 | SENS | $25.3K | Payment | 26,105 | $0.97 | Discretionary |
| May 26, 2022 | SENS | $0 | Award | 431,035 | $N/A | Discretionary |
| May 26, 2022 | SENS | $0 | Award | 45,000 | $N/A | Discretionary |
| May 16, 2022 | SENS | $51.3K | Payment | 45,430 | $1.13 | Discretionary |
| Feb 11, 2022 | SENS | $352.1K | Sale | 143,126 | $2.46 | Discretionary |
| Feb 10, 2022 | SENS | $0 | Award | 255,287 | $N/A | Discretionary |
| Nov 15, 2021 | SENS | $176.4K | Payment | 46,426 | $3.80 | Discretionary |
| Jun 15, 2021 | SENS | $40.2K | Payment | 10,899 | $3.69 | Discretionary |
| May 25, 2021 | SENS | $0 | Award | 306,451 | $N/A | Discretionary |
| May 15, 2021 | SENS | $66.6K | Payment | 34,710 | $1.92 | Discretionary |
| Nov 17, 2014 | VRTX | $0 | Gift | 410 | $N/A | Discretionary |
| Oct 30, 2014 | VRTX | $0 | Award | 40,000 | $N/A | Discretionary |
| Sep 30, 2014 | VRTX | $1.6M | Sale | 14,286 | $112.22 | Discretionary |
| Sep 30, 2014 | VRTX | $1.1M | Sale | 9,601 | $113.10 | Discretionary |
| Sep 30, 2014 | VRTX | $842.9K | Sale | 7,400 | $113.91 | Discretionary |
| Sep 30, 2014 | VRTX | $524.7K | Sale | 4,713 | $111.33 | Discretionary |
| Sep 30, 2014 | VRTX | $2.0M | Option Exercise | 36,000 | $55.83 | Discretionary |
| Jul 1, 2014 | VRTX | $1.3M | Option Exercise | 28,321 | $45.11 | Discretionary |
| Jul 1, 2014 | VRTX | $2.7M | Sale | 27,877 | $95.28 | Discretionary |
| Jul 1, 2014 | VRTX | $213.3K | Sale | 2,257 | $94.49 | Discretionary |
| Feb 5, 2014 | VRTX | $0 | Award | 17,250 | $N/A | Discretionary |