GW&K Investment Management, LLC

Position in ATMU — Atmus Filtration Technologies Inc.

CIK 1082917 BOSTON, MA

Position in ATMU

as of Jun 30, 2026 · filed Aug 12, 2026 Compact

Position Value

$19,906,088

-$5,027,239 QoQ

Shares Held

390,392

-11.1% QoQ

Ownership

0.478%

of shares outstanding

% of Portfolio

0.16%

of 13F equity value

Holder Rank

#46

of 333 holders

Holding Since

Dec 2023

11 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Consumer Cyclical · as of Jun 30, 2026

GW&K Investment Management, LLC holds $180,804,562 across 12 Auto Parts names. ATMU ranks #5 (11.0% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	DORM	Dorman Products, Inc.	481,630	$65,718,413
2	GTX	Garrett Motion Inc.	1,029,577	$37,301,574
3	GPC	Genuine Parts Co	230,898	$27,241,346
4	MOD	Modine Manufacturing Co	87,710	$23,420,324
5	ATMU	Atmus Filtration Technologies Inc. This page	390,392	$19,906,088
6	LKQ	Lkq Corp	210,382	$5,539,358
7	ORLY	O Reilly Automotive Inc	17,592	$1,620,047
8	AZO	Autozone Inc	9	$28,763

11 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$19,906,088	390,392	-11.1%	Shares	Sole	2026-08-12
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.