GW&K Investment Management, LLC

Position in ATMU — Atmus Filtration Technologies Inc.

CIK 1082917 BOSTON, MA

Position in ATMU

as of Mar 31, 2026 · filed May 13, 2026 Compact

Position Value

$24,933,327

-$122,695 QoQ

Shares Held

439,199

-9.0% QoQ

Ownership

0.538%

of shares outstanding

% of Portfolio

0.22%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Dec 2023

10 quarters on record

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

Consumer Cyclical · as of Mar 31, 2026

GW&K Investment Management, LLC holds $149,121,759 across 11 Auto Parts names. ATMU ranks #3 (16.7% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	DORM	Dorman Products, Inc.	513,688	$53,608,479
2	GTX	Garrett Motion Inc.	1,425,926	$25,909,075
3	ATMU	Atmus Filtration Technologies Inc. This page	439,199	$24,933,327
4	MOD	Modine Manufacturing Co	86,613	$18,769,903
5	GPC	Genuine Parts Co	170,257	$18,004,677
6	LKQ	Lkq Corp	210,611	$6,185,645
7	ORLY	O Reilly Automotive Inc	17,515	$1,616,809
8	THRM	Gentherm Inc	1,351	$37,530

10 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$24,933,327	439,199	-9.0%	Shares	Sole	2026-05-13
2025-12-31	$25,056,022	482,682	+7.6%	Shares	Sole	2026-02-11
2025-09-30	$20,218,942	448,413	-3.1%	Shares	Sole	2025-11-12
2025-06-30	$16,854,265	462,775	-1.1%	Shares	Sole	2025-08-11
2025-03-31	$17,179,539	467,725	+2.0%	Shares	Sole	2025-05-05
2024-12-31	$17,964,735	458,518	+5.1%	Shares	Sole	2025-02-05
2024-09-30	$16,378,767	436,418	+0.1%	Shares	Sole	2024-11-07
2024-06-30	$12,548,598	436,018	+5.5%	Shares	Sole	2024-08-12
2024-03-31	$13,333,053	413,428	+37.0%	Shares	Sole	2024-05-08
2023-12-31	$7,090,761	301,863	—	Shares	Sole	2024-02-09
No filing history on record for this holder in this stock.