Who Owns Amentum Stock?
NYSE: AMTMConsumer DiscretionaryBusiness ServicesUSD
At close: Oct 9, 4:00 PM ET · Delayed 15 min
Ownership breakdown
- Held by institutions
- 109.31%
- Institutions (% of float)
- 110.61%
- Held by insiders
- 1.17%
- Institutional holders
- 612
- Institutions 98.8%
- Insiders 1.2%
- Public and other 0.0%
Who owns Amentum stock?
Institutional investors own about 109.3% of Amentum's shares, spread across 612 institutions that file 13F reports. That level of institutional ownership is high, typical of large, widely followed companies. Insiders, including executives, directors and large founding shareholders, hold 1.17% of AMTM.
The largest institutional holders are American Securities LLC (18.42%), Invesco Ltd. (10.21%) and Blackrock Inc. (7.32%). Together, the top 10 institutions control 57.4% of shares outstanding. In their latest filings, 9 of the top 10 institutions increased their AMTM positions and 0 reduced them.
Summary generated from market data by MetaCap's automated system. Methodology
Top institutional holders of AMTM
| Institution | Shares | % Held | Change |
|---|---|---|---|
| American Securities LLC | 45.03M | 18.42% | 0.0% |
| Invesco Ltd. | 24.95M | 10.21% | +16.2% |
| Blackrock Inc. | 17.91M | 7.32% | +0.4% |
| Primecap Management Company | 12.29M | 5.02% | +1.7% |
| Legacy Advisors, LLC | 9.07M | 3.71% | +0.0% |
| Vanguard Portfolio Management LLC | 7.95M | 3.25% | +1.2% |
| Vanguard Capital Management LLC | 6.71M | 2.75% | +0.9% |
| FMR, LLC | 5.68M | 2.32% | +1.8% |
| Dimensional Fund Advisors LP | 5.54M | 2.26% | +46.2% |
| State Street Corporation | 5.15M | 2.11% | +1.4% |
% held is the share of total shares outstanding. Change is the percentage change in the position since the holder's previous 13F filing.
Top mutual fund and ETF holders of AMTM
| Fund | Shares | % Held |
|---|---|---|
| iShares Trust-iShares Core S&P Small-Cap ETF | 9.37M | 3.83% |
| VANGUARD FENWAY FUNDS-Vanguard PRIMECAP Core Fund | 5.52M | 2.26% |
| VANGUARD INDEX FUNDS-Vanguard Total Stock Market Index Fund | 4.65M | 1.90% |
| AIM Sector Funds (Invesco Sector Funds)-Invesco Small Cap Value Fund | 4.23M | 1.73% |
| VANGUARD INDEX FUNDS-Vanguard Small-Cap Index Fund | 3.36M | 1.38% |
| AIM Sector Fd.s -INVESCO VALUE OPPORTUNITIES Fd. | 2.95M | 1.20% |
| Fidelity Capital Trust-Fidelity Value Fund | 2.82M | 1.15% |
| VANGUARD HORIZON FUNDS-Vanguard Capital Opportunity Fund | 2.51M | 1.03% |
| VANGUARD INDEX FUNDS-Vanguard Small-Cap Value Index Fund | 2.13M | 0.87% |
| GLOBAL X FUNDS-Global X Defense Tech ETF | 2.11M | 0.86% |
Frequently asked questions
Who is the largest shareholder of Amentum?
American Securities LLC is the largest institutional shareholder of AMTM, owning 18.42% of shares outstanding (45.03M shares) as of its latest 13F filing.
What percentage of Amentum is owned by institutions?
Institutions own about 109.3% of AMTM shares and 110.6% of the public float.
How much of Amentum do insiders own?
Insiders, such as officers and directors, own about 1.17% of AMTM shares outstanding.
Where does institutional ownership data come from?
Investment managers with more than $100 million in US equities must file Form 13F with the SEC within 45 days of each quarter-end. Holdings are therefore up to about 4.5 months old when published.