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Insider Trading Arrangements
 3 Months Ended 6 Months Ended
Jun. 30, 2024
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Jun. 30, 2024
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Trading Arrangements, by Individual    
Material Terms of Trading Arrangement  
During the three months ended June 30, 2024, the directors and officers of the Company adopted, modified or terminated the “Rule 10b5-1 trading arrangements” (as such term is defined in Item 408(a) of Regulation S-K) set forth in the table below.

Name (Title)
Action
Date of Action
Duration of Trading Arrangement
Aggregate Number of Securities
Jon P. Stonehouse,
President and Chief Executive Officer
Modification
May 13, 2024
Until December 31, 2024, or such earlier date upon which all transactions are completed or the plan is terminated
(1)
Modification
May 29, 2024
Until May 22, 2026, or such earlier date upon which all transactions are completed or the plan is terminated
(2)
Alane P. Barnes,
Chief Legal Officer and Secretary
Modification
May 15, 2024
Until December 29, 2025, or such earlier date upon which all transactions are completed or the plan is terminated
(3)
Nancy J. Hutson, Ph.D.,
Director, Chair of the Board
Adoption
June 18, 2024
Until December 31, 2024, or such earlier date upon which all transactions are completed or the plan is terminated
(4)
(1) This trading plan was originally adopted on November 28, 2022 (the “2022 Stonehouse Plan”) and provided for the sale of up to 199,345 shares of common stock underlying stock options through December 6, 2024. The 2022 Stonehouse Plan was amended on May 13, 2024 (as amended, the “5/13/2024 Stonehouse Plan”) to cancel all open orders under the 2022 Stonehouse Plan and to provide for the sale of up to 115,345 shares of common stock underlying stock options expiring in 2025.
(2) The 5/13/2024 Stonehouse Plan was further amended on May 29, 2024 (the “5/29/2024 Stonehouse Plan”). The 5/29/2024 Stonehouse Plan provides for the sale of up to 584,290 shares of common stock underlying stock options expiring in 2025 and 2026 (inclusive of the 115,345 stock options included in the 5/13/2024 Stonehouse Plan).
(3) This trading plan was originally adopted on December 1, 2022 (the “2022 Barnes Plan”) and provided for the sale of up to (i) 24,710 shares of common stock and (ii) 137,897 shares of common stock underlying stock options through December 29, 2025. The 2022 Barnes Plan was amended on May 15, 2024 to cancel all open orders under the 2022 Barnes Plan and to provide for the sale of up to 119,897 shares of common stock underlying stock options expiring in 2024 and 2025.
(4) This trading plan provides for the sale of 7,000 shares of common stock for the sole purpose of generating sufficient proceeds to cover the tax liability incurred in connection with the vesting of 16,745 restricted stock units on June 13, 2024.
Non-Rule 10b5-1 Arrangement Adopted false  
Rule 10b5-1 Arrangement Terminated false  
Non-Rule 10b5-1 Arrangement Terminated false  
Nancy J. Hutson [Member]    
Trading Arrangements, by Individual    
Name Nancy J. Hutson, Ph.D.  
Title Director, Chair of the Board  
Rule 10b5-1 Arrangement Adopted true  
Adoption Date June 18, 2024  
Arrangement Duration 196 days  
Aggregate Available 7,000 7,000