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Magnetar Financial’s Atkore ATKR Stock Holding History

Magnetar Financial’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 		$432K Sell
5,676
-19,784
-78% -$1.49M ﹤0.01% 656
2026
Q1 		$1.5M Buy
25,460
+6,223
+32% +$405K 0.02% 375
2025
Q4 		$1.22M Buy
+19,237
New +$1.26M 0.01% 411
2025
Q3 		– Sell
-9,243
Closed -$652K – 894
2025
Q2 		$652K Buy
+9,243
New +$599K ﹤0.01% 503
2025
Q1 		– Sell
-11,848
Closed -$989K – 733
2024
Q4 		$989K Sell
11,848
-31,243
-73% -$2.75M 0.02% 278
2024
Q3 		$3.65M Buy
43,091
+11,382
+36% +$1.24M 0.08% 180
2024
Q2 		$4.28M Buy
+31,709
New +$5.05M 0.09% 134
2023
Q4 		– Sell
-4,925
Closed -$735K – 378
2023
Q3 		$735K Buy
+4,925
New +$743K 0.02% 279
2022
Q4 		– Sell
-30,128
Closed -$2.34M – 782
2022
Q3 		$2.34M Buy
30,128
+18,963
+170% +$1.64M 0.03% 541
2022
Q2 		$927K Buy
+11,165
New +$1.11M 0.01% 998
2017
Q2 		– Sell
-10,455
Closed -$275K – 784
2017
Q1 		$275K Buy
+10,455
New +$269K ﹤0.01% 590

Other funds holding ATKR

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
American Century Companies
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
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
LSV Asset Management
LSV Asset Management Chicago, Illinois $55.1B AUM 45.38% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
EARNEST Partners
EARNEST Partners Atlanta, Georgia $27.7B AUM 52.44% 1-Year Est. Return

Magnetar Financial's ATKR Position: Q2 2026 in Review

Magnetar Financial reduced its Atkore (ATKR) stake by 78% in Q2 2026, selling an estimated $1.49M and leaving 5,676 shares worth $432K. The position accounts for ﹤0.01% of the portfolio, ranked #656.

Magnetar Financial first reported a position in ATKR in Q1 2017 and has held it in 11 quarters since. The position peaked at $4.28M in Q2 2024. 326 funds tracked by Wall St. Rank hold ATKR as of Q2 2026.

  • Magnetar Financial held 5,676 shares of Atkore worth $432K as of Q2 2026.
  • Magnetar Financial sold 19,784 Atkore shares in Q2 2026, an estimated $1.49M.
  • Atkore made up ﹤0.01% of Magnetar Financial's portfolio in Q2 2026, its #656 holding.
  • Magnetar Financial first reported a position in Atkore in Q1 2017 and has held it in 11 quarters since.
  • Magnetar Financial's Atkore position peaked at $4.28M in Q2 2024.
  • 326 funds tracked by Wall St. Rank held Atkore as of Q2 2026.

Based on Magnetar Financial's 13F filing for Q2 2026, filed 14 Aug 2026.