WELLINGTON MANAGEMENT GROUP LLP

Position in DORM — Dorman Products, Inc.

CIK 902219 Boston, MA

Position in DORM

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

Position Value

$48,168,399

-$14,370,481 QoQ

Shares Held

461,560

-9.1% QoQ

Ownership

1.54%

of shares outstanding

% of Portfolio

0.01%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Sep 2021

12 quarters on record

Voting authority Sole 0.ToString("F0")% Shared 78.95918190484444.ToString("F0")% None 21.040818095155558.ToString("F0")%

Consumer Cyclical · as of Mar 31, 2026

WELLINGTON MANAGEMENT GROUP LLP holds $1,780,252,959 across 17 Auto Parts names. DORM ranks #9 (2.7% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	ORLY	O Reilly Automotive Inc	8,363,033	$771,991,572
2	MOD	Modine Manufacturing Co	1,019,921	$221,027,078
3	AZO	Autozone Inc	55,850	$188,649,010
4	GT	Goodyear Tire & Rubber Co /Oh/	19,795,158	$131,241,892
5	VC	Visteon Corp	919,147	$83,743,480
6	ATMU	Atmus Filtration Technologies Inc.	1,386,421	$78,707,118
7	ALV	Autoliv Inc	676,576	$71,148,731
8	GNTX	Gentex Corp	2,240,993	$48,965,695

12 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$48,168,399	461,560	-9.1%	Shares	Defined	2026-05-15
2025-12-31	$62,538,880	507,662	+8.8%	Shares	Defined	2026-02-17
2025-09-30	$72,754,493	466,734	-14.9%	Shares	Defined	2025-11-14
2025-06-30	$67,288,541	548,533	+7.2%	Shares	Defined	2025-08-14
2025-03-31	$61,691,285	511,791	+192.9%	Shares	Defined	2025-05-13
2024-12-31	$22,634,585	174,717	+1136.2%	Shares	Defined	2025-02-12
2024-09-30	$1,598,724	14,133	0.0%	Shares	Defined	2024-11-14
2024-06-30	$1,292,886	14,133	-22.8%	Shares	Defined	2024-08-14
2024-03-31	$1,764,611	18,307	-6.0%	Shares	Defined	2024-05-15
2023-12-31	$1,624,659	19,478	+313.9%	Shares	Defined	2024-02-12
2023-03-31	$405,939	4,706	-1.8%	Shares	Defined	2023-05-12
2021-09-30	$453,563	4,791	—	Shares	Defined	2021-11-15
No filing history on record for this holder in this stock.