- Type / Class
- Equity / Common Stock
- Shares outstanding
- 243,042,143
- Total 13F shares
- 193,975,046
- Share change
- +334,980
- Total reported value
- $5,626,543,534
- Put/Call ratio
- 43%
- Price per share
- $29.00
- Number of holders
- 477
- Value change
- +$53,148,412
- Number of buys
- 197
- Number of sells
- 217
Quarterly Holders Quick Answers
What is CUSIP 023939101?
CUSIP 023939101 identifies AMTM - Amentum Holdings, Inc. - Common Stock in SEC institutional holdings data.
Need full ownership history?
Open the full security ownership history page.
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- Latest 13F filings for newly reported positions across managers.
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Recent filing periods for CUSIP 023939101:
Top shareholders of AMTM - Amentum Holdings, Inc. - Common Stock (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.
Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
| Holder | Source | Role / Reporting | Ownership % | Shares | Holdings Value | 12M Net Δ | As of | Details |
|---|---|---|---|---|---|---|---|---|
| AMERICAN SECURITIES LLC |
13F
|
Company |
19%
|
45,026,743
|
$1,078,390,495 | — | 30 Sep 2025 | |
| Alan E. Goldberg |
13D/G
3/4/5
|
Director, 10%+ Owner |
18%
|
43,893,904
|
$974,005,730 | $0 | 17 Dec 2024 | |
| ASP Manager Corp. |
13D/G
3/4/5
|
10%+ Owner |
18%
|
43,893,904
|
$974,005,730 | $0 | 17 Dec 2024 | |
| ASP Amentum Investco LP |
3/4/5
|
10%+ Owner |
—
class O/S missing
|
43,893,904
|
$913,300,461 | — | 17 Dec 2024 | |
| Goldberg 2014 LLC |
3/4/5
|
10%+ Owner |
19%
|
45,026,743
|
$817,235,385 | — | 08 May 2025 | |
| Lindsay Goldberg Employee Co-Inv. IV L.P. |
3/4/5
|
10%+ Owner |
19%
|
45,026,743
|
$817,235,385 | — | 08 May 2025 | |
| Invesco Ltd. |
13D/G
13F
|
Company |
9.1%
|
22,116,835
|
$529,698,198 | +$117,971,114 | 30 Sep 2025 | |
| BlackRock, Inc. |
13F
13D/G
|
Company |
6.9%
from 13D/G
|
17,990,449
|
$430,871,245 | — | 30 Sep 2025 | |
| VANGUARD GROUP INC |
13F
|
Company |
6.4%
|
15,554,691
|
$372,534,850 | — | 30 Sep 2025 | |
| PRIMECAP MANAGEMENT CO/CA/ |
13F
|
Company |
4.9%
|
11,918,586
|
$285,450,135 | — | 30 Sep 2025 | |
| STATE STREET CORP |
13F
|
Company |
2.8%
|
6,833,376
|
$163,659,355 | — | 30 Sep 2025 | |
| FMR LLC |
13F
|
Company |
2.6%
|
6,235,249
|
$149,334,229 | — | 30 Sep 2025 | |
| FRONTIER CAPITAL MANAGEMENT CO LLC |
13F
|
Company |
2.1%
|
5,202,680
|
$124,604,180 | — | 30 Sep 2025 | |
| Kovitz Investment Group Partners, LLC |
13F
|
Company |
1.2%
|
3,007,750
|
$72,035,613 | — | 30 Sep 2025 | |
| THOMPSON SIEGEL & WALMSLEY LLC |
13F
|
Company |
1.1%
|
2,730,298
|
$65,391,000 | — | 30 Sep 2025 | |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
|
Company |
1.1%
|
2,654,184
|
$63,585,408 | — | 30 Sep 2025 | |
| Ruane, Cunniff & Goldfarb L.P. |
13F
|
Company |
1%
|
2,423,748
|
$58,048,765 | — | 30 Sep 2025 | |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. |
13F
|
Company |
0.86%
|
2,081,611
|
$49,854,548 | — | 30 Sep 2025 | |
| Freestone Grove Partners LP |
13F
|
Company |
0.84%
|
2,051,859
|
$49,142,023 | — | 30 Sep 2025 | |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC |
13F
|
Company |
0.76%
|
1,842,171
|
$44,119,995 | — | 30 Sep 2025 | |
| MORGAN STANLEY |
13F
|
Company |
0.74%
|
1,806,417
|
$43,263,752 | — | 30 Sep 2025 | |
| THRIVENT FINANCIAL FOR LUTHERANS |
13F
|
Company |
0.74%
|
1,805,411
|
$43,240,000 | — | 30 Sep 2025 | |
| Arvin Capital Management LP |
13F
|
Company |
0.67%
|
1,636,492
|
$39,193,983 | — | 30 Sep 2025 | |
| FIL Ltd |
13F
|
Company |
0.64%
|
1,559,024
|
$37,338,625 | — | 30 Sep 2025 | |
| Point72 Asset Management, L.P. |
13F
|
Company |
0.57%
|
1,380,992
|
$33,074,757 | — | 30 Sep 2025 | |
| DIMENSIONAL FUND ADVISORS LP |
13F
|
Company |
0.54%
|
1,306,051
|
$31,272,642 | — | 30 Sep 2025 | |
| Steven J. Demetriou |
3/4/5
|
Executive Chair, Director |
0.35%
|
861,218
mixed-class rows
|
$30,888,441 | — | 17 Nov 2025 | |
| 683 Capital Management, LLC |
13F
|
Company |
0.52%
|
1,275,000
|
$30,536,250 | — | 30 Sep 2025 | |
| BRIGHTLINE CAPITAL MANAGEMENT, LLC |
13F
|
Company |
0.49%
|
1,200,000
|
$28,740,000 | — | 30 Sep 2025 | |
| DISCOVERY CAPITAL MANAGEMENT, LLC / CT |
13F
|
Company |
0.47%
|
1,139,112
|
$27,281,732 | — | 30 Sep 2025 | |
| Verition Fund Management LLC |
13F
|
Company |
0.47%
|
1,135,626
|
$27,198,243 | — | 30 Sep 2025 | |
| VOYA INVESTMENT MANAGEMENT LLC |
13F
|
Company |
0.45%
|
1,084,969
|
$25,985,008 | — | 30 Sep 2025 | |
| LOOMIS SAYLES & CO L P |
13F
|
Company |
0.44%
|
1,064,079
|
$25,484,702 | — | 30 Sep 2025 | |
| Penn Capital Management Company, LLC |
13F
|
Company |
0.4%
|
960,607
|
$23,063,226 | — | 30 Sep 2025 | |
| NORTHERN TRUST CORP |
13F
|
Company |
0.39%
|
942,945
|
$22,583,533 | — | 30 Sep 2025 | |
| Bank of New York Mellon Corp |
13F
|
Company |
0.36%
|
866,263
|
$20,747,007 | — | 30 Sep 2025 | |
| AVENIR CORP |
13F
|
Company |
0.35%
|
862,453
|
$20,655,749 | — | 30 Sep 2025 | |
| GOLDMAN SACHS GROUP INC |
13F
|
Company |
0.33%
|
811,931
|
$19,445,752 | — | 30 Sep 2025 | |
| CACTI ASSET MANAGEMENT LLC |
13F
|
Company |
0.35%
|
857,092
|
$19,344,566 | — | 30 Sep 2025 | |
| BANK OF AMERICA CORP /DE/ |
13F
|
Company |
0.33%
|
798,437
|
$19,122,566 | — | 30 Sep 2025 | |
| VAN ECK ASSOCIATES CORP |
13F
|
Company |
0.32%
|
765,677
|
$18,338,000 | — | 30 Sep 2025 | |
| Nuveen, LLC |
13F
|
Company |
0.31%
|
751,304
|
$17,993,731 | — | 30 Sep 2025 | |
| PRINCIPAL FINANCIAL GROUP INC |
13F
|
Company |
0.3%
|
735,755
|
$17,621,332 | — | 30 Sep 2025 | |
| NEW YORK STATE COMMON RETIREMENT FUND |
13F
|
Company |
0.27%
|
659,080
|
$15,784,966 | — | 30 Sep 2025 | |
| MILLENNIUM MANAGEMENT LLC |
13F
|
Company |
0.26%
|
640,799
|
$15,347,136 | — | 30 Sep 2025 | |
| Voss Capital, LP |
13F
|
Company |
0.26%
|
625,000
|
$14,968,750 | — | 30 Sep 2025 | |
| PUBLIC SECTOR PENSION INVESTMENT BOARD |
13F
|
Company |
0.25%
|
597,976
|
$14,321,525 | — | 30 Sep 2025 | |
| BW Gestao de Investimentos Ltda. |
13F
|
Company |
0.21%
|
511,477
|
$12,249,874 | — | 30 Sep 2025 | |
| Vident Advisory, LLC |
13F
|
Company |
0.19%
|
454,704
|
$10,890,162 | — | 30 Sep 2025 | |
| ROYCE & ASSOCIATES LP |
13F
|
Company |
0.19%
|
454,500
|
$10,885,275 | — | 30 Sep 2025 |
Institutional Holders of Amentum Holdings, Inc. - Common Stock (AMTM) as of Q4 2025
As of 31 Dec 2025,
Amentum Holdings, Inc. - Common Stock (AMTM) was held by
477 institutional
shareholders
that filed Form 13F with the SEC.
Together, they reported ownership of
193,975,046 shares.
The largest 10 holders included
AMERICAN SECURITIES LLC, Invesco Ltd., BlackRock, Inc., VANGUARD GROUP INC, PRIMECAP MANAGEMENT CO/CA/, FMR LLC, FRONTIER CAPITAL MANAGEMENT CO LLC, STATE STREET CORP, Focus Partners Wealth, and GEODE CAPITAL MANAGEMENT, LLC.
This page lists
477
institutional shareholders reporting positions in this security
for the Q4 2025 filing period.
| Investor | Option | Weight % | Change % | Value $ | * Price | Shares | Share Change | Activity | Report Period |
|---|
Compare Q4 2025 vs Q3 2025 Across Filers
Q3 2025 holders
457
Q4 2025 holders
477
Holder diff
20
| Investor | Q3 2025 Shares | Q4 2025 Shares | Share Diff | Share Chg % | Q3 2025 Value $ | Q4 2025 Value $ | Value Diff $ | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend
* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.
An asterisk sign (*) next to the price indicates that the price is likely invalid.