WESTFIELD CAPITAL MANAGEMENT CO LP

Position in ORLY — O Reilly Automotive Inc

CIK 1177719 BOSTON, MA

Position in ORLY

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

Position Value

$85,943,452

+$3,972,265 QoQ

Shares Held

933,255

+5.1% QoQ

Ownership

0.115%

of shares outstanding

% of Portfolio

0.28%

of 13F equity value

Holder Rank

#114

of 1,651 holders

Holding Since

Mar 2020

9 quarters on record

Voting authority Sole 73% Shared 0% None 27%

Consumer Cyclical · as of Jun 30, 2026

WESTFIELD CAPITAL MANAGEMENT CO LP holds $205,851,353 across 3 Auto Parts names. ORLY ranks #1 (41.8% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	ORLY	O Reilly Automotive Inc This page	933,255	$85,943,452
2	AZO	Autozone Inc	23,395	$74,769,013
3	DORM	Dorman Products, Inc.	330,809	$45,138,888

9 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$85,943,452	933,255	+5.1%	Shares	Sole	2026-08-12
2026-03-31	$81,971,187	887,999	-6.8%	Shares	Sole	2026-05-11
2025-12-31	$86,895,949	952,702	+16.6%	Shares	Sole	2026-02-11
2025-09-30	$88,083,573	817,026	+33.4%	Shares	Sole	2025-11-12
2025-06-30	$55,194,620	612,389	+206.7%	Shares	Sole	2025-08-12
2020-12-31	$90,366,814	199,675	-22.2%	Shares	Sole	2021-02-12
2020-09-30	$118,314,178	256,602	-3.0%	Shares	Sole	2020-11-13
2020-06-30	$111,492,367	264,407	+32.6%	Shares	Sole	2020-08-13
2020-03-31	$60,046,830	199,458	—	Shares	Sole	2020-05-14
No filing history on record for this holder in this stock.