Institutional Ownership
Amentum Holdings Inc
CUSIP 023939101COMAMTMQ1 2026
Institutional Holders
477
13F filers
Shares Held
195.27M
Aggregate institutional
Institutional Value
$4.69B
Q1 2026
Net New Holders
+7
64 new · 57 closed
Institutional Ownership Trend
Aggregate 13F value by quarter
Multi-quarter trend — upgrade to see history
UpgradePosition Activity
Q1 2026
New positions64
Increased149
Decreased151
Sold out57
Institutional Holders
477 funds hold this security · Q1 2026
| # | Fund | Shares | Value | Δ Shares | Activity |
|---|---|---|---|---|---|
| 1 | American Securities LLC | 45.03M | $1.17B | 0 | Held |
| 2 | Invesco Ltd. | 21.47M | $560.04M | −360.2K | Reduced |
| 3 | Blackrock, Inc. | 17.84M | $465.30M | +382.2K | Added |
| 4 | Primecap Management Co/Ca/ | 12.09M | $315.18M | −41.6K | Reduced |
| 5 | Fmr LLC | 5.58M | $145.48M | −1.13M | Reduced |
| 6 | State Street Corp | 5.08M | $132.46M | +17.4K | Added |
| 7 | Frontier Capital Management Co LLC | 4.93M | $128.58M | −842.8K | Reduced |
| 8 | Dimensional Fund Advisors LP | 3.79M | $98.77M | +1.95M | Added |
| 9 | Geode Capital Management, LLC | 2.81M | $73.42M | +155.1K | Added |
| 10 | Mirae Asset Global Etfs Holdings Ltd. | 2.79M | $72.64M | +823.2K | Added |
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