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Insider Trading Arrangements | 3 Months Ended | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2023
Trading Arrangements, by Individual |  |
Rule 10b5-1 Arrangement Adopted | false |
Non-Rule 10b5-1 Arrangement Adopted | false |
Rule 10b5-1 Arrangement Terminated | true |
Non-Rule 10b5-1 Arrangement Terminated | false |
Officer Trading Arrangement [Member] |  |
Trading Arrangements, by Individual |  |
Material Terms of Trading Arrangement |  | During the three months ended December 31, 2023, the directors and officers of the Company adopted or terminated the “Rule 10b5-1 trading arrangements” or “non-Rule 10b5-1 trading arrangements” (as each term is defined in Item 408(a) of Regulation S-K) set forth in the table below.
Name (Title) |  | Action |  | Termination Date |  | Type of Trading Arrangement |  | Duration of Trading Arrangement |  | Aggregate Number of Securities
Jon P. Stonehouse, President and Chief Executive Officer |  | Termination |  | November 7, 2023 |  | Rule 10b5-1 trading arrangement |  | (1) |  | (1)
Anthony J. Doyle, Chief Financial Officer and Treasurer |  | Termination |  | November 7, 2023 |  | Rule 10b5-1 trading arrangement |  | (1) |  | (1)
Helen M. Thackray, M.D., Chief Research & Development Officer |  | Termination |  | November 8, 2023 |  | Rule 10b5-1 trading arrangement |  | (2) |  | (2)
Alane P. Barnes, Chief Legal Officer and Secretary |  | Termination |  | November 7, 2023 |  | Rule 10b5-1 trading arrangement |  | (1) |  | (1)
Charles K. Gayer, Chief Commercial Officer |  | Termination |  | November 7, 2023 |  | Rule 10b5-1 trading arrangement |  | (2) |  | (2)
(1) This trading plan was originally adopted on March 11, 2022, to cover tax withholding obligations, commissions and any fees related to the vesting of restricted stock units, with a scheduled expiration date of December 31, 2025. The aggregate number of securities that would have been sold under this plan is indeterminable because the number of shares that would have been sold to satisfy applicable tax withholding obligations upon vesting is unknown, as the number would vary based on the extent to which vesting conditions were satisfied and the market price of the Company’s common stock at the time of settlement.
(2) This trading plan was originally adopted on March 14, 2022, to cover tax withholding obligations, commissions and any fees related to the vesting of restricted stock units, with a scheduled expiration date of December 31, 2025. The aggregate number of securities that would have been sold under this plan is indeterminable because the number of shares that would have been sold to satisfy applicable tax withholding obligations upon vesting is unknown, as the number would vary based on the extent to which vesting conditions were satisfied and the market price of the Company’s common stock at the time of settlement.
Officer Trading Arrangement [Member] | Jon P. Stonehouse [Member] |  |
Trading Arrangements, by Individual |  |
Name | Jon P. Stonehouse |
Title | President and Chief Executive Officer |
Rule 10b5-1 Arrangement Terminated | true |
Termination Date | November 7, 2023 |
Officer Trading Arrangement [Member] | Anthony J. Doyle [Member] |  |
Trading Arrangements, by Individual |  |
Name | Anthony J. Doyle |
Title | Chief Financial Officer and Treasurer |
Rule 10b5-1 Arrangement Terminated | true |
Termination Date | November 7, 2023 |
Officer Trading Arrangement [Member] | Helen M. Thackray [Member] |  |
Trading Arrangements, by Individual |  |
Name | Helen M. Thackray, M.D. |
Title | Chief Research & Development Officer |
Rule 10b5-1 Arrangement Terminated | true |
Termination Date | November 8, 2023 |
Officer Trading Arrangement [Member] | Alane P. Barnes [Member] |  |
Trading Arrangements, by Individual |  |
Name | Alane P. Barnes |
Title | Chief Legal Officer and Secretary |
Rule 10b5-1 Arrangement Terminated | true |
Termination Date | November 7, 2023 |
Officer Trading Arrangement [Member] | Charles K. Gayer [Member] |  |
Trading Arrangements, by Individual |  |
Name | Charles K. Gayer |
Title | Chief Commercial Officer |
Rule 10b5-1 Arrangement Terminated | true |
Termination Date | November 7, 2023 |

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