William F. Feehery

Companies

• Certara, Inc.Board member Dec 11, 2020 to now¹
• West Pharmaceutical Services (United States)Board member Feb 27, 2012 to now²
• Certara, Inc.Chief executive officer Dec 11, 2020 to Jan 12, 2026¹

Holdings

Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.

Shares held

• CCertara, Inc. CERT2,360,769 shares³$22.3M at $9.44Nov 11, 2025
• West Pharmaceutical Services (United States) WST32,519 shares⁴$12.5M at $384.40May 4, 2026

As of each latest filing. The line shows shares held over time.

Recent filings

• May 4, 2026Granted 791 shares of West Pharmaceutical Services (United States)⁴
• Nov 11, 2025Bought 24,096 shares at $8.30 of Certara, Inc.³
• May 6, 2025Granted 1,071 shares of West Pharmaceutical Services (United States)⁵
• Apr 1, 2025Shares withheld for tax 17,673 shares at $9.90 of Certara, Inc.⁶
• Apr 1, 2025Exercised options 41,593 shares of Certara, Inc.⁶
• Apr 1, 2025Shares withheld for tax 14,116 shares at $9.90 of Certara, Inc.⁶
• Apr 1, 2025Exercised options 33,220 shares of Certara, Inc.⁶
• Apr 1, 2025Shares withheld for tax 13,807 shares at $9.90 of Certara, Inc.⁶
• Apr 1, 2025Exercised options 36,580 shares of Certara, Inc.⁶
• Apr 1, 2025Shares withheld for tax 8,238 shares at $9.90 of Certara, Inc.⁶
• Apr 1, 2025Granted 29,960 shares of Certara, Inc.⁶
• Apr 23, 2024Granted 564 shares of West Pharmaceutical Services (United States)⁷
• Apr 1, 2024Shares withheld for tax 14,115 shares at $17.88 of Certara, Inc.⁸
• Apr 1, 2024Exercised options 33,219 shares of Certara, Inc.⁸
• Apr 1, 2024Shares withheld for tax 15,543 shares at $17.88 of Certara, Inc.⁸
• Apr 1, 2024Exercised options 36,580 shares of Certara, Inc.⁸
• Apr 1, 2024Shares withheld for tax 12,971 shares at $17.88 of Certara, Inc.⁸
• Mar 5, 2024Shares withheld for tax 17,557 shares at $18.88 of Certara, Inc.⁹
• Mar 5, 2024Granted 59,799 shares of Certara, Inc.⁹
• Apr 25, 2023Granted 616 shares of West Pharmaceutical Services (United States)¹⁰
• Mar 31, 2023Shares withheld for tax 15,543 shares at $23.80 of Certara, Inc.¹¹
• Mar 31, 2023Exercised options 36,580 shares of Certara, Inc.¹¹
• Mar 31, 2023Shares withheld for tax 10,091 shares at $23.80 of Certara, Inc.¹¹
• May 24, 2022Granted 632 shares of West Pharmaceutical Services (United States)¹²
• Apr 1, 2022Shares withheld for tax 9,255 shares at $21.48 of Certara, Inc.¹³