Simplex Trading’s Atkore ATKR Stock Holding History

Simplex Trading’s Portfolio ATKR Stock Details ATKR Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$25K	Sell	329 -56	-15%	-$4.22K	﹤0.01%	6908
2026 Q1	$22.7K	Sell	385 -1,675	-81%	-$109K	﹤0.01%	6669
2025 Q4	$130K	Buy	+2,060	New	+$134K	﹤0.01%	4702
2025 Q2	–	Sell	-2,657	Closed	-$172K	–	8584
2025 Q1	$159K	Buy	+2,657	New	+$190K	﹤0.01%	4561
2022 Q1	–	Sell	-1,839	Closed	-$191K	–	10336
2021 Q4	$204K	Sell	1,839 -7,128	-79%	-$724K	﹤0.01%	5161
2021 Q3	$644K	Hold	8,967	–	–	﹤0.01%	3717
2021 Q2	$636K	Buy	8,967 +7,547	+531%	+$575K	﹤0.01%	3787
2021 Q1	$102K	Buy	+1,420	New	+$85.9K	﹤0.01%	5717
2020 Q4	–	Sell	-5	Closed	-$158	–	8301
2020 Q3	$0	Buy	+5	New	+$135	﹤0.01%	7753
2019 Q1	–	Sell	-1,627	Closed	-$36.4K	–	7099
2018 Q4	$32K	Sell	1,627 -3,049	-65%	-$63.8K	﹤0.01%	4949
2018 Q3	$124K	Buy	+4,676	New	+$117K	﹤0.01%	4196

Other funds holding ATKR

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return

GCM

Gates Capital Management New York $4.16B AUM 21% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

LSV Asset Management Chicago, Illinois $55.1B AUM 45.38% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

EARNEST Partners Atlanta, Georgia $27.7B AUM 52.44% 1-Year Est. Return

Simplex Trading's ATKR Position: Q2 2026 in Review

Simplex Trading reduced its Atkore (ATKR) stake by 15% in Q2 2026, selling an estimated $4.22K and leaving 329 shares worth $25K. The position accounts for ﹤0.01% of the portfolio, ranked #6908.

Simplex Trading first reported a position in ATKR in Q3 2018 and has held it in 11 quarters since. The position peaked at $644K in Q3 2021. 326 funds tracked by Wall St. Rank hold ATKR as of Q2 2026.

Simplex Trading held 329 shares of Atkore worth $25K as of Q2 2026.
Simplex Trading sold 56 Atkore shares in Q2 2026, an estimated $4.22K.
Atkore made up ﹤0.01% of Simplex Trading's portfolio in Q2 2026, its #6908 holding.
Simplex Trading first reported a position in Atkore in Q3 2018 and has held it in 11 quarters since.
Simplex Trading's Atkore position peaked at $644K in Q3 2021.
326 funds tracked by Wall St. Rank held Atkore as of Q2 2026.

Based on Simplex Trading's 13F filing for Q2 2026, filed 12 Aug 2026.