TWINBEECH CAPITAL LP

Position in AMTM — Amentum Holdings, Inc.

CIK 1769646 PURCHASE, NY

Position in AMTM

as of Jun 30, 2026 · filed Aug 14, 2026 Compact

Position Value

$2,061,357

-$1,924,780 QoQ

Shares Held

99,727

-27.4% QoQ

Ownership

0.041%

of shares outstanding

% of Portfolio

0.37%

of 13F equity value

Holder Rank

#108

of 458 holders

Holding Since

Mar 2025

4 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Industrials · as of Jun 30, 2026

TWINBEECH CAPITAL LP holds $5,234,833 across 4 Specialty Business Services names. AMTM ranks #2 (39.4% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	MMS	Maximus, Inc.	40,747	$2,190,558
2	AMTM	Amentum Holdings, Inc. This page	99,727	$2,061,357
3	CPRT	Copart Inc	22,445	$632,724
4	CTAS	Cintas Corp	2,059	$350,194

4 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$2,061,357	99,727	-27.4%	Shares	Sole	2026-08-14
2025-12-31	$3,986,137	137,453	-38.3%	Shares	Sole	2026-02-17
2025-09-30	$5,333,832	222,707	-1.2%	Shares	Sole	2025-11-14
2025-03-31	$4,102,971	225,438	—	Shares	Sole	2025-05-15
No filing history on record for this holder in this stock.