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Insider Trading Arrangements
 3 Months Ended
Mar. 31, 2025
shares
Trading Arrangements, by Individual  
Material Terms of Trading Arrangement
During the fiscal quarter ended March 31, 2025, our directors and officers (as defined in Rule 16a-1(f) under the Exchange Act) adopted or terminated the contracts, instructions or written plans for the purchase or sale of our securities set forth in the table below.
Type of Trading Arrangement
Name and PositionActionAdoption/ Termination
Date		Rule 10b5-1*Total Shares of Common Stock to be SoldExpiration Date
Chin-Chi Teng, Senior Vice President and General Manager, R&D
Adoption3/7/2025X
Up to 26,390
9/2/2025
Paul Cunningham, Senior Vice President and General Manager, System Verification Group
Adoption(1)
3/10/2025
X
Up to 12,000
5/8/2026
Paul Cunningham, Senior Vice President and General Manager, System Verification Group
Termination(1)
3/13/2025
X
Up to 12,000
5/8/2026
Paul Cunningham. Senior Vice President and General Manager, System Verification Group
Adoption
3/14/2025
X
Up to 12,000
5/8/2026
* Contract, instruction or written plan intended to satisfy the affirmative defense conditions of Rule 10b5-1(c) under the Exchange Act.
(1)Dr. Cunningham’s trading arrangement entered into on March 10, 2025 was promptly terminated on March 13, 2025 due to a clerical error. No securities were purchased or sold under the trading arrangement.
Non-Rule 10b5-1 Arrangement Adopted false
Non-Rule 10b5-1 Arrangement Terminated false
Chin-Chi Teng [Member]  
Trading Arrangements, by Individual  
Name Chin-Chi Teng
Title Senior Vice President and General Manager, R&D
Rule 10b5-1 Arrangement Adopted true
Adoption Date 3/7/2025
Arrangement Duration 179 days
Aggregate Available 26,390
Adoption (1) [Member] | Paul Cunningham [Member]  
Trading Arrangements, by Individual  
Name Paul Cunningham
Title Senior Vice President and General Manager, System Verification Group
Rule 10b5-1 Arrangement Adopted true
Adoption Date 3/10/2025
Arrangement Duration 424 days
Aggregate Available 12,000
Termination [Member] | Paul Cunningham [Member]  
Trading Arrangements, by Individual  
Name Paul Cunningham
Title Senior Vice President and General Manager, System Verification Group
Rule 10b5-1 Arrangement Terminated true
Termination Date 3/13/2025
Arrangement Duration 421 days
Aggregate Available 12,000
Adoption (2) [Member]  
Trading Arrangements, by Individual  
Title Senior Vice President and General Manager, System Verification Group
Adoption (2) [Member] | Paul Cunningham [Member]  
Trading Arrangements, by Individual  
Name Paul Cunningham
Rule 10b5-1 Arrangement Adopted true
Adoption Date 3/14/2025
Arrangement Duration 420 days
Aggregate Available 12,000