Amentum Holdings, Inc. (AMTM) Ownership - Who Owns Amentum Holdings, Inc.?

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Recent Insider Trading Activity

Date	Name	Activity	Value

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Recent Hedge Fund Trading Activity

Date	Firm	Activity	Value
Dec 31, 2025	Wexford Capital Lp	xxxxxxxxxxxxx	$239279
Dec 31, 2025	Bridgewater Associates, Lp	xxxxxxxxxxxxx	$529279
Dec 31, 2025	Carlson Capital Lp	xxxxxxxxxxxxx	$551000
Dec 31, 2025	Gamco Investors, Inc. Et Al	xxxxxxxxxxxxx	$2663969

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Top Shareholders

Holder	# of Shares	Type	% Holding	Value
	45,026,743	Insider	18.46%	1,256,246,130
	45,026,743	Insider	18.46%	1,256,246,130
	45,026,743	Insider	18.46%	1,256,246,130
	12,935,991	Institution	5.30%	360,914,149
	12,872,263	Institution	5.28%	359,136,138
Theofanis Kolokotrones	12,126,927	Institution	4.97%	338,341,263
	11,708,280	Institution	4.80%	326,661,012
	6,000,227	Institution	2.46%	167,406,333
	5,269,819	Institution	2.16%	147,027,950
	3,250,702	Institution	1.33%	90,694,586

Top Mutual Fund Holders

# of Shares	Type	% Holding	Value
11,708,280	Institution	4.80%	326,661,012
6,000,227	Institution	2.46%	167,406,333
5,269,819	Institution	2.16%	147,027,950
3,250,702	Institution	1.33%	90,694,586
3,197,379	Institution	1.31%	89,206,874
2,604,138	Institution	1.07%	72,655,450
1,485,980	Institution	0.61%	41,458,842
1,163,839	Institution	0.48%	32,471,108
1,012,960	Institution	0.42%	28,261,584
949,696	Institution	0.39%	26,496,518

Top ETF Holders

Holder	# of Shares	Type	% Holding	Value
iShares Core S&P Small Cap ETF	9,316,786	Institution	3.82%	259,938,329
Vanguard Total Stock Market ETF	4,612,877	Institution	1.89%	165,048,739
Vanguard Small-Cap ETF	3,310,723	Institution	1.36%	118,457,669
Global X Defense Tech ETF	2,417,555	Institution	0.99%	67,691,540
VanEck Defense UCITS ETF	2,312,668	Institution	0.95%	64,523,437
Vanguard Small Cap Value ETF	2,125,646	Institution	0.87%	76,055,614
Vanguard Extended Market ETF	1,655,657	Institution	0.68%	59,239,407
iShares S&P Small-Cap 600 Value ETF	1,483,062	Institution	0.61%	41,377,430
SPDR Portfolio S&P 600 Small Cap ETF	1,426,136	Institution	0.58%	39,931,808
Invesco Aerospace & Defense ETF	1,070,358	Institution	0.44%	29,970,024

FAQ

Who Owns Amentum Holdings, Inc. (AMTM)?

Currently, no data Available

What percentage of Amentum Holdings, Inc. (AMTM) stock is held by institutional investors?

Currently, no data Available

What percentage of Amentum Holdings, Inc. (AMTM) stock is held by retail investors?

Currently, no data Available

Who owns the most shares of Amentum Holdings, Inc. (AMTM)?

Lindsay Goldberg Employee Co-Inv. IV L.P. owns the most shares of Amentum Holdings, Inc. (AMTM).

What is the significance of the ownership structure for a publicly traded company?

The ownership structure can impact the company's decision making, as large institutional investors may exert influence on the company's management and can also affect the company's stock price with their buying and selling patterns.