Simplex Trading’s Dorman Products DORM Stock Holding History

Simplex Trading’s Portfolio DORM Stock Details DORM Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$6.99K	Buy	+67	New	+$7.98K	﹤0.01%	7661
2022 Q4	–	Sell	-262	Closed	-$22.3K	–	9423
2022 Q3	$21K	Sell	262 -789	-75%	-$77.7K	﹤0.01%	7451
2022 Q2	$115K	Sell	1,051 -116	-10%	-$11.5K	﹤0.01%	5380
2022 Q1	$110K	Buy	+1,167	New	+$113K	﹤0.01%	6003
2020 Q3	–	Sell	-1,300	Closed	-$104K	–	7921
2020 Q2	$87K	Buy	1,300 +1,000	+333%	+$64.3K	﹤0.01%	4933
2020 Q1	$16K	Buy	+300	New	+$20.4K	﹤0.01%	6120
2019 Q2	–	Sell	-492	Closed	-$42.8K	–	7233
2019 Q1	$43K	Buy	+492	New	+$42.8K	﹤0.01%	5123
2018 Q2	–	Sell	-86	Closed	-$5.8K	–	7452
2018 Q1	$5K	Buy	86 +42	+95%	+$2.99K	﹤0.01%	4622
2017 Q4	$2K	Sell	44 -309	-88%	-$20.9K	﹤0.01%	5153
2017 Q3	$25K	Buy	+353	New	+$25.4K	﹤0.01%	2938
2015 Q4	–	Sell	-1,792	Closed	-$87.4K	–	5525
2015 Q3	$91K	Sell	1,792 -3,855	-68%	-$193K	0.01%	1483
2015 Q2	$269K	Buy	+5,647	New	+$275K	0.02%	651

Other funds holding DORM

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Jennison Associates New York $167B AUM 44.17% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return

Royce & Associates New York $10.1B AUM 42.88% 1-Year Est. Return

Simplex Trading's DORM Position: Q1 2026 in Review

Simplex Trading opened a new position in Dorman Products (DORM) in Q1 2026: 67 shares worth $6.99K. The stake represents ﹤0.01% of the portfolio and ranks #7661 among its holdings. This is a return to the name: Simplex Trading previously reported a position in DORM as recently as Q3 2022.

Simplex Trading first reported a position in DORM in Q2 2015 and has held it in 12 quarters since. The position peaked at $269K in Q2 2015. 318 funds tracked by Wall St. Rank hold DORM as of Q1 2026.

Simplex Trading held 67 shares of Dorman Products worth $6.99K as of Q1 2026.
Dorman Products was a new Simplex Trading position in Q1 2026.
Dorman Products made up ﹤0.01% of Simplex Trading's portfolio in Q1 2026, its #7661 holding.
Simplex Trading first reported a position in Dorman Products in Q2 2015 and has held it in 12 quarters since.
Simplex Trading's Dorman Products position peaked at $269K in Q2 2015.
318 funds tracked by Wall St. Rank held Dorman Products as of Q1 2026.

Based on Simplex Trading's 13F filing for Q1 2026, filed 14 May 2026.