DORMAN PRODUCTS INC

Ticker: DORM CUSIP: 258278100 Class: EQTY

Horizon Investment Services, LLC's Holding History (CIK: 0001426940)

Note: Option positions (PUT/CALL) are excluded.

Q2 2025

Shares 2,390 Value ($000) $293 Avg Close $121.60 Range $106.95 - $132.91

Q1 2025

Shares 2,730 Value ($000) $329 Avg Close $127.56 Range $117.50 - $135.69

Q4 2024

Shares 3,135 Value ($000) $406 Avg Close $128.07 Range $108.12 - $146.60

Q3 2024

Shares 2,480 Value ($000) $281 Avg Close $105.16 Range $87.05 - $119.28

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2025	2,390	$293	$121.60	$106.95 - $132.91
Q1 2025	2,730	$329	$127.56	$117.50 - $135.69
Q4 2024	3,135	$406	$128.07	$108.12 - $146.60
Q3 2024	2,480	$281	$105.16	$87.05 - $119.28