Amentum Holdings, Inc. - COMM (AMTM)

CUSIP: 023939101

Q4 2024 13F Holders as of 31 Dec 2024

Holder snapshot 7 signals
Share change
+79,023,199
Put/Call ratio
36%
SEC-reported price per share
$21.03
Number of holders
445
Value change
+$1,468,894,480
Number of buys
210
Open additional details 1 more signal available
Number of sells
334
Security identity Names, identifiers, and filing context for this profile. 1 source field
Shares outstanding
244,244,612

Security key

023939101

Report period

Q4 2024

Institutions

445

Top holders

10

Ownership snapshot

Top reported holders of AMTM - Amentum Holdings, Inc. - COMM (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader
ASP Manager Corp.
Disclosed value leader
ASP Manager Corp.
Comparable rows
15/15
Latest evidence
31 Dec 2024
13D/G 3/4/5 13F Lead comparable stake: 18% 13D/G row: ASP Manager Corp. Showing 1-6 of 15 holder rows.

Quick read

ASP Manager Corp. leads the comparable SEC ownership view at 18%.

15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens ASP Manager Corp.'s linked filing trail.
Comparable ownership Top 5
ASP Manager Corp. 18%
Alan E. Goldberg 18%
BlackRock, Inc. 6.9%
VANGUARD GROUP INC 5.7%
Invesco Ltd. 3.2%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-6 of 15 holder rows
Holder Evidence Ownership % Position 12M Net Δ As of
ASP Manager Corp.
13D/G 3/4/5
10%+ Owner
18%
$974,005,730
43,893,904 shares
$0 17 Dec 2024
Alan E. Goldberg
13D/G
18%
$974,005,730
43,893,904 shares
$0 17 Dec 2024
BlackRock, Inc.
13D/G 13F
Company
6.9%
$372,220,408
16,774,241 shares
$0 31 Dec 2024
VANGUARD GROUP INC
13F
Company
13F
5.7%
$451,928,087
14,013,274 shares
30 Sep 2024
Invesco Ltd.
13F
Company
13F
3.2%
$251,569,383
7,800,601 shares
30 Sep 2024
STATE STREET CORP
13F
Company
13F
3%
$236,305,683
7,327,308 shares
30 Sep 2024
How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

13F holder rows

Institutional holders as of Q4 2024

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions
445
Shares
180,057,223
Rows available
445
Investor Option Weight % Change % SEC-reported value * Price Shares Share Change Activity Report Period

* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.

Compare Q4 2024 vs Q3 2024 Across Filers

Q3 2024 holders
480
Q4 2024 holders
445
Holder diff
-35
Investor Q3 2024 Shares Q4 2024 Shares Share Diff Share Chg % Q3 2024 value Q4 2024 value Value change Value Chg %
We use cookies and similar technologies to provide certain features, enhance the user experience and, if you allow them, measure engagement and deliver advertising. Analytics and marketing storage stay off until you grant consent. By clicking on "Agree and continue", you declare your consent to the use of the selected optional cookies. Manage preferences to update or revoke optional consent for future visits. For more information, see our Privacy Policy .