Teresa Hillary Clarke

Companies

• American Tower CorporationBoard member Dec 20, 2021 to now¹
• Arthur J. Gallagher & Co.Board member Aug 3, 2021 to now²

Holdings

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

Shares held

• AJArthur J. Gallagher & Co. AJG5,567 shares³$1.4M at $258.04May 12, 2026
• American Tower Corporation AMT5,307 shares⁴$966.0K at $182.02Mar 10, 2026

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

Recent filings

• May 12, 2026Granted 1,110 shares of Arthur J. Gallagher & Co.³
• Mar 10, 2026Granted 1,209 shares of American Tower Corporation⁴
• May 13, 2025Granted 690 shares of Arthur J. Gallagher & Co.⁵
• Mar 10, 2025Granted 1,056 shares of American Tower Corporation⁶
• May 9, 2024Exercised options 920 shares of Arthur J. Gallagher & Co.⁷
• May 9, 2024Exercised options 920 shares of Arthur J. Gallagher & Co.⁷
• May 7, 2024Granted 850 shares of Arthur J. Gallagher & Co.⁸
• Mar 11, 2024Granted 1,089 shares of American Tower Corporation⁹
• May 10, 2023Exercised options 1,030 shares of Arthur J. Gallagher & Co.¹⁰
• May 10, 2023Exercised options 1,030 shares of Arthur J. Gallagher & Co.¹⁰
• May 9, 2023Granted 920 shares of Arthur J. Gallagher & Co.¹⁰
• Mar 10, 2023Granted 1,072 shares of American Tower Corporation¹¹
• Aug 2, 2022Exercised options 905 shares of Arthur J. Gallagher & Co.¹²
• Aug 2, 2022Exercised options 905 shares of Arthur J. Gallagher & Co.¹²
• May 11, 2022Granted 1,030 shares of Arthur J. Gallagher & Co.¹³
• Mar 10, 2022Granted 881 shares of American Tower Corporation¹⁴