Amentum Holdings
AMTM
451 hedge funds and large institutions have $3.48B invested in Amentum Holdings in 2024 Q4 according to their latest regulatory filings, with 145 funds opening new positions, 94 increasing their positions, 158 reducing their positions, and 183 closing their positions.
400% more funds holding in top 10
Funds holding in top 10: 1 → 5 (+4)
114% more call options, than puts
Call options by funds: $93.5M | Put options by funds: $43.8M
67.95% more ownership
Funds ownership: 0% → 67.95% (+68%)
7% more capital invested
Capital invested by funds: $3.24B → $3.48B (+$240M)
8% less funds holding
Funds holding: 492 → 451 (-41)
21% less first-time investments, than exits
New positions opened: 145 | Existing positions closed: 183
41% less repeat investments, than reductions
Existing positions increased: 94 | Existing positions reduced: 158
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
BlackRock
New York
|
+$203M |
| 2 |
Invesco
Atlanta,
Georgia
|
+$157M |
| 3 |
CCPM
Cooper Creek Partners Management
New York
|
+$85.8M |
| 4 |
Kovitz Investment Group Partners
Chicago,
Illinois
|
+$78M |
| 5 |
Vanguard Group
Malvern,
Pennsylvania
|
+$65.4M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Barrow, Hanley, Mewhinney & Strauss
Dallas,
Texas
|
-$104M |
| 2 |
Boston Partners
Boston,
Massachusetts
|
-$95.8M |
| 3 |
Ninety One (UK)
London,
United Kingdom
|
-$49.6M |
| 4 |
Macquarie Group
Sydney, NSW 2000,
Australia
|
-$47.8M |
| 5 |
Massachusetts Financial Services
Boston,
Massachusetts
|
-$39.6M |
AMTM Hedge Fund Activity: Q4 2024 in Review
451 of the 7,606 institutional investors tracked by Wall St. Rank reported a position in Amentum Holdings (AMTM) for Q4 2024, worth a combined $3.48B — up 7.4% from $3.24B a quarter earlier.
Sellers outnumbered buyers: 183 funds closed out of AMTM and 145 opened new positions — a net loss of 38 holders — while 158 trimmed existing stakes and 94 added.
The largest buyer was BlackRock, adding an estimated $203M. The largest seller was Barrow, Hanley, Mewhinney & Strauss, exiting entirely with an estimated $104M sold.
- 451 institutional investors held Amentum Holdings (AMTM) as of Q4 2024, down from 492 in Q3 2024.
- Funds reported $3.48B of Amentum Holdings stock for Q4 2024, up 7.4% quarter-over-quarter.
- 145 funds opened new Amentum Holdings positions in Q4 2024 and 183 closed out, a net change of -38 holders.
- The largest Amentum Holdings buyer in Q4 2024 was BlackRock, an estimated $203M added.
- The largest Amentum Holdings seller in Q4 2024 was Barrow, Hanley, Mewhinney & Strauss, an estimated $104M sold.
Based on aggregated 13F filings for Q4 2024.