CenterBook Partners LP

Position in AMTM — Amentum Holdings, Inc.

CIK 1872738 GREENWICH, CT

Position in AMTM

as of Mar 31, 2026 · filed May 5, 2026 Compact

Position Value

$3,747,643

-$2,696,824 QoQ

Shares Held

143,698

-35.3% QoQ

Ownership

0.059%

of shares outstanding

% of Portfolio

0.20%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Dec 2024

6 quarters on record

Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Industrials · as of Mar 31, 2026

CenterBook Partners LP holds $12,537,539 across 5 Specialty Business Services names. AMTM ranks #1 (29.9% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	AMTM	Amentum Holdings, Inc. This page	143,698	$3,747,643
2	CTAS	Cintas Corp	18,450	$3,120,633
3	TRNS	Transcat Inc	41,292	$3,032,897
4	GPN	Global Payments Inc	26,397	$1,776,518
5	TRI	Thomson Reuters Corp /Can/	9,556	$859,848

6 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$3,747,643	143,698	-35.3%	Shares	Sole	2026-05-05
2025-12-31	$6,444,467	222,223	-27.9%	Shares	Sole	2026-02-11
2025-09-30	$7,378,539	308,081	+145.8%	Shares	Sole	2025-11-07
2025-06-30	$2,959,277	125,340	-69.8%	Shares	Sole	2025-08-12
2025-03-31	$7,545,246	414,574	+481.4%	Shares	Sole	2025-05-09
2024-12-31	$1,499,565	71,306	—	Shares	Sole	2025-02-13
No filing history on record for this holder in this stock.