- Type / Class
- Equity / Common Stock
- Shares outstanding
- 243,042,143
- Total 13F shares
- 193,380,844
- Share change
- -6,925,185
- Total reported value
- $4,630,241,431
- Put/Call ratio
- 75%
- Price per share
- $23.95
- Number of holders
- 457
- Value change
- -$164,141,118
- Number of buys
- 179
- Number of sells
- 241
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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These links keep the next click tied to holder verification, nearby quarters, or outside-13F ownership context.
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- Latest 13F filings for newly reported positions across managers.
- Latest Schedule 13D/13G reports for ownership changes outside the 13F cadence.
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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
|
$1,063,081,402 | — | 30 Jun 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
|
18,995,083
|
$448,473,920 | — | 30 Jun 2025 | |
| VANGUARD GROUP INC |
13F
|
Company |
6.8%
|
16,533,825
|
$390,363,609 | — | 30 Jun 2025 | |
| PRIMECAP MANAGEMENT CO/CA/ |
13F
|
Company |
5%
|
12,030,656
|
$284,043,790 | — | 30 Jun 2025 | |
| STATE STREET CORP |
13F
|
Company |
2.9%
|
7,078,249
|
$167,117,459 | — | 30 Jun 2025 | |
| FRONTIER CAPITAL MANAGEMENT CO LLC |
13F
|
Company |
2.2%
|
5,460,743
|
$128,928,144 | — | 30 Jun 2025 | |
| MILLENNIUM MANAGEMENT LLC |
13F
|
Company |
1.9%
|
4,666,215
|
$110,169,336 | — | 30 Jun 2025 | |
| FMR LLC |
13F
|
Company |
1.9%
|
4,573,930
|
$107,990,505 | — | 30 Jun 2025 | |
| VAN ECK ASSOCIATES CORP |
13F
|
Company |
1.3%
|
3,068,158
|
$72,439,000 | — | 30 Jun 2025 | |
| Kovitz Investment Group Partners, LLC |
13F
|
Company |
1.2%
|
3,000,670
|
$70,845,819 | — | 30 Jun 2025 | |
| THOMPSON SIEGEL & WALMSLEY LLC |
13F
|
Company |
1.1%
|
2,786,913
|
$65,799,000 | — | 30 Jun 2025 | |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
|
Company |
1%
|
2,513,161
|
$59,351,846 | — | 30 Jun 2025 | |
| Ruane, Cunniff & Goldfarb L.P. |
13F
|
Company |
1%
|
2,441,743
|
$57,649,558 | — | 30 Jun 2025 | |
| DISCOVERY CAPITAL MANAGEMENT, LLC / CT |
13F
|
Company |
0.95%
|
2,299,130
|
$54,282,459 | — | 30 Jun 2025 | |
| MORGAN STANLEY |
13F
|
Company |
0.9%
|
2,177,222
|
$51,404,242 | — | 30 Jun 2025 | |
| NORGES BANK |
13F
|
Company |
0.89%
|
2,160,728
|
$51,014,788 | — | 30 Jun 2025 | |
| Arvin Capital Management LP |
13F
|
Company |
0.88%
|
2,139,434
|
$50,512,037 | — | 30 Jun 2025 | |
| FIL Ltd |
13F
|
Company |
0.85%
|
2,067,205
|
$48,806,710 | — | 30 Jun 2025 | |
| Freestone Grove Partners LP |
13F
|
Company |
0.84%
|
2,051,859
|
$48,444,391 | — | 30 Jun 2025 | |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC |
13F
|
Company |
0.72%
|
1,745,013
|
$41,199,757 | — | 30 Jun 2025 | |
| THRIVENT FINANCIAL FOR LUTHERANS |
13F
|
Company |
0.69%
|
1,687,105
|
$39,833,000 | — | 30 Jun 2025 | |
| 683 Capital Management, LLC |
13F
|
Company |
0.67%
|
1,630,000
|
$38,484,300 | — | 30 Jun 2025 | |
| Voss Capital, LP |
13F
|
Company |
0.58%
|
1,400,000
|
$33,054,000 | — | 30 Jun 2025 | |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. |
13F
|
Company |
0.57%
|
1,379,752
|
$32,575,942 | — | 30 Jun 2025 | |
| DIMENSIONAL FUND ADVISORS LP |
13F
|
Company |
0.55%
|
1,334,752
|
$31,512,464 | — | 30 Jun 2025 | |
| LOOMIS SAYLES & CO L P |
13F
|
Company |
0.44%
|
1,059,209
|
$25,007,924 | — | 30 Jun 2025 | |
| Penn Capital Management Company, LLC |
13F
|
Company |
0.41%
|
1,003,472
|
$23,756,902 | — | 30 Jun 2025 | |
| BRIGHTLINE CAPITAL MANAGEMENT, LLC |
13F
|
Company |
0.41%
|
1,000,000
|
$23,610,000 | — | 30 Jun 2025 | |
| NORTHERN TRUST CORP |
13F
|
Company |
0.39%
|
941,033
|
$22,217,789 | — | 30 Jun 2025 | |
| AVENIR CORP |
13F
|
Company |
0.37%
|
895,352
|
$21,139,261 | — | 30 Jun 2025 | |
| BANK OF AMERICA CORP /DE/ |
13F
|
Company |
0.36%
|
868,265
|
$20,499,737 | — | 30 Jun 2025 | |
| Bank of New York Mellon Corp |
13F
|
Company |
0.36%
|
868,206
|
$20,498,352 | — | 30 Jun 2025 | |
| CACTI ASSET MANAGEMENT LLC |
13F
|
Company |
0.35%
|
848,946
|
$19,907,784 | — | 30 Jun 2025 | |
| UBS Group AG |
13F
|
Company |
0.32%
|
766,304
|
$18,092,438 | — | 30 Jun 2025 | |
| PRINCIPAL FINANCIAL GROUP INC |
13F
|
Company |
0.31%
|
744,517
|
$17,578,047 | — | 30 Jun 2025 | |
| BW Gestao de Investimentos Ltda. |
13F
|
Company |
0.29%
|
715,065
|
$16,882,685 | — | 30 Jun 2025 | |
| NEW YORK STATE COMMON RETIREMENT FUND |
13F
|
Company |
0.29%
|
693,777
|
$16,380,075 | — | 30 Jun 2025 | |
| VOYA INVESTMENT MANAGEMENT LLC |
13F
|
Company |
0.27%
|
651,572
|
$15,383,615 | — | 30 Jun 2025 | |
| Kopernik Global Investors, LLC |
13F
|
Company |
0.26%
|
636,226
|
$15,021,296 | — | 30 Jun 2025 | |
| Engine Capital Management, LP |
13F
|
Company |
0.26%
|
635,255
|
$14,998,371 | — | 30 Jun 2025 | |
| CSM Advisors, LLC |
13F
|
Company |
0.26%
|
633,048
|
$14,947,000 | — | 30 Jun 2025 | |
| MOORE CAPITAL MANAGEMENT, LP |
13F
|
Company |
0.25%
|
611,123
|
$14,428,614 | — | 30 Jun 2025 | |
| Nuveen, LLC |
13F
|
Company |
0.21%
|
516,574
|
$12,196,312 | — | 30 Jun 2025 | |
| PUBLIC SECTOR PENSION INVESTMENT BOARD |
13F
|
Company |
0.21%
|
514,172
|
$12,139,601 | — | 30 Jun 2025 |
Institutional Holders of Amentum Holdings, Inc. - Common Stock (AMTM) as of Q3 2025
As of 30 Sep 2025,
Amentum Holdings, Inc. - Common Stock (AMTM) was held by
457 institutional
shareholders
that filed Form 13F with the SEC.
Together, they reported ownership of
193,380,844 shares.
The largest 10 holders included
AMERICAN SECURITIES LLC, Invesco Ltd., BlackRock, Inc., VANGUARD GROUP INC, PRIMECAP MANAGEMENT CO/CA/, STATE STREET CORP, FMR LLC, FRONTIER CAPITAL MANAGEMENT CO LLC, Kovitz Investment Group Partners, LLC, and THOMPSON SIEGEL & WALMSLEY LLC.
This page lists
457
institutional shareholders reporting positions in this security
for the Q3 2025 filing period.
| Investor | Option | Weight % | Change % | Value $ | * Price | Shares | Share Change | Activity | Report Period |
|---|
Compare Q3 2025 vs Q2 2025 Across Filers
Q2 2025 holders
449
Q3 2025 holders
457
Holder diff
8
| Investor | Q2 2025 Shares | Q3 2025 Shares | Share Diff | Share Chg % | Q2 2025 Value $ | Q3 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.