Robert W. McMahon

Companies

• West Pharmaceutical Services (United States)Chief financial officer Aug 12, 2025 to now¹
• ORASURE TECHNOLOGIES INCBoard member Aug 1, 2023 to now²
• Agilent TechnologiesChief financial officer Sep 5, 2018 to Nov 20, 2025³
• HologicChief financial officer May 27, 2014 to Aug 3, 2018⁴

Holdings

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

Shares held

• Agilent Technologies A168,754 shares⁵$28.9M at $171.20May 22, 2025
• West Pharmaceutical Services (United States) WST7,021 shares⁶$2.7M at $384.40Aug 11, 2026
• OTORASURE TECHNOLOGIES INC OSUR123,137 shares⁷$450.8K at $3.66Jun 3, 2026

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

Recent filings

• Aug 11, 2026Shares withheld for tax 2,764 shares at $351.37 of West Pharmaceutical Services (United States)⁶
• Aug 11, 2026Exercised options 6,355 shares of West Pharmaceutical Services (United States)⁶
• Aug 11, 2026Shares withheld for tax 346 shares at $351.37 of West Pharmaceutical Services (United States)⁶
• Aug 11, 2026Exercised options 794 shares of West Pharmaceutical Services (United States)⁶
• Jun 3, 2026Granted 46,106 shares of ORASURE TECHNOLOGIES INC⁷
• May 13, 2026Shares withheld for tax 22,888 shares at $3.02 of ORASURE TECHNOLOGIES INC⁸
• Feb 11, 2026Shares withheld for tax 1,250 shares at $246.16 of West Pharmaceutical Services (United States)⁹
• Feb 11, 2026Exercised options 4,231 shares of West Pharmaceutical Services (United States)⁹
• Jul 31, 2025Shares withheld for tax 7,317 shares at $3.21 of ORASURE TECHNOLOGIES INC¹⁰
• May 22, 2025Shares withheld for tax 3,499 shares at $109.68 of Agilent Technologies⁵
• May 14, 2025Granted 71,017 shares of ORASURE TECHNOLOGIES INC¹¹
• May 13, 2025Shares withheld for tax 6,427 shares at $2.65 of ORASURE TECHNOLOGIES INC¹¹
• Mar 5, 2025Granted 5,385 shares at $126.51 of Agilent Technologies¹²
• Nov 27, 2024Granted 6,423 shares at $138.14 of Agilent Technologies¹³
• Nov 22, 2024Shares withheld for tax 5,775 shares at $133.84 of Agilent Technologies¹⁴
• Nov 19, 2024Shares withheld for tax 2,196 shares at $125.69 of Agilent Technologies¹⁵
• Nov 19, 2024Granted 7,835 shares at $125.69 of Agilent Technologies¹⁵
• Nov 15, 2024Shares withheld for tax 1,295 shares at $127.07 of Agilent Technologies¹⁶
• May 14, 2024Granted 19,943 shares of ORASURE TECHNOLOGIES INC¹⁷
• Nov 22, 2023Granted 29,641 shares at $123.99 of Agilent Technologies¹⁸
• Nov 22, 2023Granted 7,312 shares at $123.99 of Agilent Technologies¹⁸
• Nov 17, 2023Shares withheld for tax 2,429 shares at $113.15 of Agilent Technologies¹⁹
• Nov 16, 2023Shares withheld for tax 504 shares at $114.19 of Agilent Technologies²⁰
• Nov 15, 2023Shares withheld for tax 664 shares at $113.60 of Agilent Technologies²¹
• Nov 14, 2023Shares withheld for tax 4,640 shares at $111.61 of Agilent Technologies²²