Amentum Holdings, Inc. (AMTM) Stock
2 members of Congress disclosed 2 trades in AMTM since 2024: 0 purchases and 1 sale, most recently William R. Keating (sale, Oct 31, 2024). 7 of the hedge funds AlphaScala tracks reported AMTM in 13F filings for the quarter ended Jun 30, 2026; the largest reported position is Millennium Management's at $43.98M.
Which members of Congress traded Amentum Holdings, Inc. (AMTM)?
Most recent: William R. Keating (sale, Oct 31, 2024); records start Sep 30, 2024.
| Politician | Trade date | Type | Amount |
|---|---|---|---|
| Bill Keating D-MA · House | 2024-10-31 | sale | $1k – $15k |
| Tom Kean Jr. R-NJ · House | 2024-09-30 | exchange | $1k – $15k |
From STOCK Act periodic transaction reports. House filings as of Nov 5, 2026.
See all AMTM political trades →Which hedge funds own AMTM?
From 13F filings| Fund | Shares Held | Position Value | Change vs prior Q |
|---|---|---|---|
| Millennium Management Israel Englander | 2.13M | $43.98M | +237% |
| Citadel Ken Griffin | 671K | $13.86M | +732% |
| Point72 Steve Cohen | 650K | $13.44M | -60% |
| D.E. Shaw David Shaw | 191K | $3.96M | +189% |
| Soros Fund Management George Soros (founder) | 118K | $2.44M | +10% |
| Bridgewater Associates Ray Dalio | 47K | $976.1K | +177% |
| Blackstone | 31K | $641.3K | NEW |
13F holdings as of Jun 30, 2026
Explore all tracked funds →AMTM price chart
Powered by TradingViewWhat does Amentum Holdings, Inc. do?
Amentum Holdings, Inc. is a leading provider of technical and technological solutions with a global reach, primarily serving U.S. and allied government agencies as well as large commercial enterprises. The company delivers expertise across diverse domains, with a strong emphasis on areas such as command, control, communications, computers, combat systems, intelligence, surveillance, and reconnaissance (C5ISR), as well as engineering, environmental remediation, digital modernization, and cybersecurity. Amentum also operates in advanced sectors including energy, space, and 5G technology. The firm's comprehensive service offering is geared toward mission-critical operations, supporting both defense and civilian applications. Formed on September 27, 2024, Amentum Holdings, Inc. emerged from the merger of the legacy Amentum business with the spun-off Critical Mission Solutions segment from Jacobs Solutions Inc., alongside portions of Jacobs Divergent Solutions. This consolidation enhanced its capabilities in program management, technology integration, and data solutions, positioning the company at the intersection of engineering, technology, and high-stakes mission operations. Amentum’s market significance stems from its central role in mission support, national security, and digital transformation efforts in both public and private sectors.