Sean P. Hennessy

Companies

• Perimeter Solutions, Inc.Board member Nov 10, 2021 to now¹
• TransDigm Group Inc.Board member Apr 13, 2006 to now²
• Sherwin-WilliamsSVP-Corp Plan, Develop & Admin Feb 22, 2017 to Feb 20, 2018³
• Sherwin-WilliamsChief financial officer Jul 7, 2003 to Oct 20, 2016⁴

Holdings

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

Shares held

• TTransDigm Group Inc. TDG33,836 shares⁵$38.6M at $1,139.41Sep 18, 2026
• Sherwin-Williams SHW87,246 shares⁶$29.2M at $334.56Feb 20, 2018
• PSPerimeter Solutions, Inc. PRM100,000 shares⁷$2.7M at $26.55Feb 21, 2025

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

Recent filings

• Sep 18, 2026Granted 46 shares at $1,085.00 of TransDigm Group Inc.⁵
• Mar 20, 2026Granted 41 shares at $1,214.66 of TransDigm Group Inc.⁸
• Sep 19, 2025Granted 36 shares at $1,288.13 of TransDigm Group Inc.⁹
• May 20, 2025Sold 100 shares at $1,439.92 of TransDigm Group Inc.¹⁰
• May 20, 2025Sold 300 shares at $1,438.89 of TransDigm Group Inc.¹⁰
• May 20, 2025Sold 636 shares at $1,437.85 of TransDigm Group Inc.¹⁰
• May 20, 2025Sold 664 shares at $1,437.07 of TransDigm Group Inc.¹⁰
• May 20, 2025Sold 3,000 shares at $1,435.77 of TransDigm Group Inc.¹⁰
• May 20, 2025Exercised options 4,700 shares at $156.47 of TransDigm Group Inc.¹⁰
• Mar 26, 2025Granted 35 shares at $1,346.50 of TransDigm Group Inc.¹¹
• Sep 25, 2024Granted 34 shares at $1,367.76 of TransDigm Group Inc.¹²
• Mar 22, 2024Granted 31 shares at $1,172.20 of TransDigm Group Inc.¹³
• Jan 22, 2024Bought 0 shares at $1,065.40 of TransDigm Group Inc.¹⁴
• Dec 22, 2023L 0 shares at $1,003.40 of TransDigm Group Inc.¹⁴
• Dec 22, 2023L 0 shares at $1,001.05 of TransDigm Group Inc.¹⁴
• Dec 21, 2023L 5 shares at $988.05 of TransDigm Group Inc.¹⁴
• Dec 21, 2023L 4 shares at $988.81 of TransDigm Group Inc.¹⁴
• Nov 22, 2023Sold 320 shares at $974.31 of TransDigm Group Inc.¹⁵
• Nov 22, 2023Sold 120 shares at $972.73 of TransDigm Group Inc.¹⁵
• Nov 22, 2023Sold 871 shares at $972.29 of TransDigm Group Inc.¹⁵
• Nov 22, 2023Sold 1,074 shares at $971.02 of TransDigm Group Inc.¹⁵
• Nov 22, 2023Sold 965 shares at $969.82 of TransDigm Group Inc.¹⁵
• Nov 22, 2023Sold 300 shares at $968.58 of TransDigm Group Inc.¹⁵
• Nov 22, 2023Exercised options 3,650 shares at $172.84 of TransDigm Group Inc.¹⁵
• Aug 15, 2022Sold 1,133 shares at $678.54 of TransDigm Group Inc.¹⁶