John C. Vollmer

President, AECOM.

Companies

Amentum Holdings, Inc.Board member Sep 27, 2024 to now¹
AECOMPresident Nov 21, 2017 to Jan 29, 2020²

Holdings

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

Shares held

Amentum Holdings, Inc. AMTM429,842 shares³$8.6M at $20.06Feb 6, 2026

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

Recent filings

Feb 6, 2026Granted 5,062 shares of Amentum Holdings, Inc.³
Feb 6, 2026Exercised options 11,564 shares of Amentum Holdings, Inc.³
Mar 5, 2025Exercised options 3,447 shares of Amentum Holdings, Inc.⁴
Dec 17, 2024Other 391,341 shares of Amentum Holdings, Inc.⁴

Sources

The numbers on this page point here. Each one links to the record it came from.

1
SEC EDGARAmentum Holdings, Inc., Board member
2
SEC EDGARAECOM, President
3
SEC EDGARAmentum Holdings, Inc. shares after the filing of Feb 6, 2026
4
SEC EDGARForm 4 filed Mar 7, 2025