AMENTUM HOLDINGS INC (AMTM) is held by 173 institutional investors that disclose positions via SEC 13F filings. The largest disclosed holder is Invesco Ltd. as of Q1 2026.

Are institutions buying or selling AMTM?

In Q1 2026, 96 institutions opened or increased positions in AMENTUM HOLDINGS INC while 78 reduced or exited — a net buying quarter.

What is the Smart Money Verdict on AMTM?

HoldingsIntel scores AMENTUM HOLDINGS INC across four independent sources (institutional 13F activity, insider trades, activist filings, and congressional trades) — with 2 of the 4 carrying data for AMTM. In Q1 2026, the institutional leg showed net inflows: 96 buying versus 78 selling.

How many hedge funds hold AMTM?

173 institutional investors report holding AMENTUM HOLDINGS INC (AMTM) as of Q1 2026, based on SEC 13F filings.

Is institutional money flowing into AMTM?

As of Q1 2026, tracked institutions in AMENTUM HOLDINGS INC show 96 buyers versus 78 sellers — net inflows.

AMENTUM HOLDINGS INC

AMTM·023939101·US·Common Stock·Industrials - Specialty Business Services-13D/G

173

Holders

(18 Elite)

$3.4B

Total Value

55% (174)

Consensus

96 buying - 78 selling

13F: Mar 31, 2026Insider & Congress: Updated regularly

Smart Money Verdict

View all

Held by 173 funds

18 elite

Who's Trading

Activist

Invesco Ltd.10.1%May 7, 2026

InsiderHEHeller John E.Exercise 18K shMay 6, 2026

InsiderHEHeller John E.Tax 8K shMay 6, 2026

InsiderBLBruning Jill LExercise 9K shMay 6, 2026

InsiderBLBruning Jill LTax 3K shMay 6, 2026

InsiderJBJohnson Travis BartonExercise 14K shMay 6, 2026

InsiderJBJohnson Travis BartonTax 4K shMay 6, 2026

InsiderAAArnette Stephen AExercise 14K shMay 6, 2026

Activist

The Vanguard Group0.0%Mar 26, 2026

Congress

William R. KeatingSale $1,001 - $15,000Oct 31, 2024

View all insider trades View all activist filings View all congressional trades

Fund	Action	Shares	Value	Weight	Est. P&L	Conviction
Invesco Ltd.	Decreased	21.5M(-1.6%)	$560M	0.1%	-8.79%	0
BlackRock, Inc.	Increased	17.8M(+2.2%)	$465.3M	0.0%	-5.37%	32
PRIMECAP MANAGEMENT CO/CA/	Decreased	12.1M(-0.3%)	$315.2M	0.2%	-7.84%	0
VPVANGUARD PORTFOLIO MANAGEMENT LLC	New	7.9M	$204.8M	0.0%	-31.47%	42
VAVANGUARD CAPITAL MANAGEMENT LLC	New	6.7M	$173.5M	0.0%	-31.47%	42
FMR LLC	Decreased	5.6M(-16.8%)	$145.5M	0.0%	-3.09%	0
STATE STREET CORP	Increased	5.1M(+0.3%)	$132.5M	0.0%	-17.28%	30
FRONTIER CAPITAL MANAGEMENT CO LLC	Decreased	4.9M(-14.6%)	$128.6M	1.3%	+0.77%	0
DIMENSIONAL FUND ADVISORS LP	Increased	3.8M(+106.6%)	$98.8M	0.0%	-26.60%	48
GEODE CAPITAL MANAGEMENT, LLC	Increased	2.8M(+5.8%)	$73.4M	0.0%	-15.05%	31
MAMIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.	Increased	2.8M(+42.0%)	$72.6M	0.1%	-17.39%	40
FWFocus Partners Wealth	Decreased	2.6M(-6.8%)	$67.9M	0.1%	-28.17%	0
BANK OF AMERICA CORP /DE/	Increased	2.4M(+107.8%)	$62.7M	0.0%	-24.60%	48
MORGAN STANLEY	Increased	2.2M(+7.7%)	$58.3M	0.0%	-12.83%	32
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	Increased	2.1M(+5.9%)	$53.9M	0.0%	-12.20%	31
UBS Group AG	Increased	1.7M(+730.1%)	$44.6M	0.0%	-29.10%	47
Point72 Asset Management, L.P.	Increased	1.6M(+134.5%)	$42.5M	0.1%	-23.28%	47
TORONTO DOMINION BANK	New	1.6M	$40.8M	0.1%	-31.47%	40
Verition Fund Management LLC	Increased	1.3M(+50.0%)	$33.9M	0.2%	-17.30%	48
VOYA INVESTMENT MANAGEMENT LLC	Increased	1.2M(+4.5%)	$31.3M	0.0%	-6.40%	30