Amentum Holdings, Inc. AMTM
Set alert
22.47 USD +0.60 +2.74%
At close · Nov 2
22.41 -0.06 -0.27%
After hours · Nov 2, 5:48 PM ET
21.94 Day range 22.59
18.12 52-week range 37.53
- YTD
- -22.52%
- 1 year
- +0.27%
- Open
- 22.00
- Prev close
- 21.87
- Mkt cap
- 5.49B
- Vol
- 2.79M
- Avg vol
- 2.05M
- EPS
- 0.85
- P/E
- 26.44
- Div yield
- 0.00%
More statistics
- Low
- 21.94
- High
- 22.59
- Forward P/E
- 8.51
- Beta
- 0.16
- Short ratio
- 6.99
- Inst. own
- 105.59%
- Dividend
- 0.00
- Ex-div date
- Earnings
- Nov 23, 2026
- 50-d avg
- 19.81
- 200-d avg
- 24.48
- 1y target
- 29.25
5D chart
Events in this range
- Oct 28, 2026Rating: RBC Capital · Sector Perform → Sector Perform
Signals (108)
| Name | Time | Ago |
|---|---|---|
| SMA: Bullish | Oct 30, 3:50 PM | 3 days ago |
| SMA: Bullish | Oct 30, 3:50 PM | 3 days ago |
| SMA: Bearish | Oct 30, 3:30 PM | 3 days ago |
| SMA: Bearish | Oct 30, 3:15 PM | 3 days ago |
| MACD: Buy Signal | Oct 30, 3:00 PM | 3 days ago |
| SMA: Bullish | Oct 30, 2:55 PM | 3 days ago |
| RSI: Oversold | Oct 30, 2:20 PM | 3 days ago |
| MACD: Sell Signal | Oct 30, 1:50 PM | 3 days ago |
| SMA: Bearish | Oct 30, 1:45 PM | 3 days ago |
| SMA: Bullish | Oct 30, 1:20 PM | 3 days ago |
| SMA: Bullish | Oct 30, 1:20 PM | 3 days ago |
| SMA: Bearish | Oct 30, 12:50 PM | 3 days ago |
| SMA: Bearish | Oct 30, 12:50 PM | 3 days ago |
| SMA: Bullish | Oct 30, 12:25 PM | 3 days ago |
| SMA: Bullish | Oct 30, 12:05 PM | 3 days ago |
| MACD: Buy Signal | Oct 30, 12:05 PM | 3 days ago |
| SMA: Bearish | Oct 30, 12:00 PM | 3 days ago |
| SMA: Bullish | Oct 30, 11:55 AM | 3 days ago |
| SMA: Bearish | Oct 30, 10:40 AM | 3 days ago |
| SMA: Bullish | Oct 30, 10:35 AM | 3 days ago |
Newest 20 of 108.
Held by funds
153 US ETFs and mutual funds hold AMTM · largest positions
Ownership
Held by insiders 1.17%
Held by institutions 105.59%
Float held by institutions 106.84%
Institutions 608
Top institutional holders
| Holder | % held | Shares | Value | Reported |
|---|---|---|---|---|
| American Securities LLC | 18.42% | 45,026,743 | 1.01B | Jun 29, 2026 |
| Invesco Ltd. | 10.21% | 24,954,251 | 560.35M | Jun 29, 2026 |
| Blackrock Inc. | 7.32% | 17,906,984 | 402.10M | Jun 29, 2026 |
| Primecap Management Company | 5.02% | 12,285,504 | 275.87M | Jun 29, 2026 |
| Vanguard Portfolio Management LLC | 3.25% | 7,948,385 | 178.48M | Jun 29, 2026 |
| Vanguard Capital Management LLC | 2.75% | 6,711,987 | 150.72M | Jun 29, 2026 |
Top mutual fund holders
| Holder | % held | Shares | Value | Reported |
|---|---|---|---|---|
| iShares Trust-iShares Core S&P Small-Cap ETF | 3.75% | 9,171,825 | 205.95M | Sep 29, 2026 |
| VANGUARD FENWAY FUNDS-Vanguard PRIMECAP Core Fund | 2.26% | 5,516,796 | 123.88M | Jun 29, 2026 |
| VANGUARD INDEX FUNDS-Vanguard Total Stock Market Index Fund | 1.90% | 4,653,337 | 104.49M | Jun 29, 2026 |
| AIM Sector Funds (Invesco Sector Funds)-Invesco Small Cap Value Fund | 1.73% | 4,226,948 | 94.92M | Jul 30, 2026 |
| VANGUARD INDEX FUNDS-Vanguard Small-Cap Index Fund | 1.38% | 3,363,425 | 75.53M | Jun 29, 2026 |
| AIM Sector Fd.s -INVESCO VALUE OPPORTUNITIES Fd. | 1.20% | 2,945,078 | 66.13M | Jul 30, 2026 |
Insiders
| Insider | Relation | Latest transaction | Date | Shares held |
|---|---|---|---|---|
| AMENTUM JOINT VENTURE GP LLC | Director | Stock Award(Grant) | Apr 6, 2025 | 0 |
| ARNETTE STEPHEN A | Chief Operating Officer | Conversion of Exercise of derivative security | May 5, 2026 | 106,652 |
| BRUNING JILL L | Chief Technology Officer | Conversion of Exercise of derivative security | May 5, 2026 | 197,457 |
| DEMETRIOU STEVEN J | Officer and Director | Stock Award(Grant) | Nov 16, 2025 | 844,026 |
| EBERHART RALPH EDWARD | Director | Conversion of Exercise of derivative security | Mar 4, 2025 | 29,886 |
| HELLER JOHN E | Chief Executive Officer | Conversion of Exercise of derivative security | May 5, 2026 | 376,019 |