BROWN ADVISORY INC

Position in AMTM — Amentum Holdings, Inc.

CIK 1345929 BALTIMORE, MD

Position in AMTM

as of Mar 31, 2026 · filed May 15, 2026 Compact

Position Value

$258,922

-$29,599 QoQ

Shares Held

9,928

-0.2% QoQ

Ownership

0.004%

of shares outstanding

% of Portfolio

0.00%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Sep 2024

7 quarters on record

Voting authority Sole 99.87912973408541.ToString("F0")% Shared 0.ToString("F0")% None 0.12087026591458502.ToString("F0")%

Industrials · as of Mar 31, 2026

BROWN ADVISORY INC holds $363,712,972 across 5 Specialty Business Services names. AMTM ranks #5 (0.1% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	CTAS	Cintas Corp	1,894,787	$320,484,272
2	CASS	Cass Information Systems Inc	521,640	$22,962,591
3	RTO	Rentokil Initial PLC /Fi	604,005	$19,014,076
4	CPRT	Copart Inc	29,913	$993,111
5	AMTM	Amentum Holdings, Inc. This page	9,928	$258,922

7 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$258,922	9,928	-0.2%	Shares	Defined	2026-05-15
2025-12-31	$288,521	9,949	-2.0%	Shares	Defined	2026-02-13
2025-09-30	$243,116	10,151	-4.3%	Shares	Defined	2025-11-14
2025-06-30	$250,453	10,608	-9.1%	Shares	Defined	2025-08-13
2025-03-31	$212,302	11,665	-14.8%	Shares	Defined	2025-04-30
2024-12-31	$287,899	13,690	-3.9%	Shares	Defined	2025-02-14
2024-09-30	$459,627	14,252	—	Shares	Defined	2024-11-13
No filing history on record for this holder in this stock.