MF
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Magnetar Financial’s Westlake Corp WLK Stock Holding History

Magnetar Financial’s Portfolio WLK Stock Details WLK Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$1.24M Buy
+16,922
New +$1.65M 0.01% 398
2025
Q4 		– Sell
-3,329
Closed -$257K – 1240
2025
Q3 		$257K Sell
3,329
-3,858
-54% -$321K ﹤0.01% 728
2025
Q2 		$546K Sell
7,187
-20,090
-74% -$1.64M ﹤0.01% 534
2025
Q1 		$2.73M Buy
+27,277
New +$3.02M 0.04% 241
2024
Q4 		– Sell
-28,872
Closed -$4.34M – 806
2024
Q3 		$4.34M Buy
+28,872
New +$4.15M 0.09% 164
2023
Q3 		– Sell
-2,925
Closed -$349K – 592
2023
Q2 		$349K Buy
+2,925
New +$335K 0.01% 382
2022
Q3 		– Sell
-27,855
Closed -$2.73M – 1533
2022
Q2 		$2.73M Buy
+27,855
New +$3.41M 0.03% 544
2021
Q3 		– Sell
-4,148
Closed -$374K – 1543
2021
Q2 		$374K Buy
+4,148
New +$403K ﹤0.01% 969
2019
Q2 		– Sell
-9,011
Closed -$611K – 556
2019
Q1 		$611K Buy
+9,011
New +$653K 0.02% 231
2018
Q3 		– Sell
-5,264
Closed -$567K – 715
2018
Q2 		$567K Sell
5,264
-1,508
-22% -$169K 0.01% 252
2018
Q1 		$753K Sell
6,772
-15,415
-69% -$1.71M 0.01% 261
2017
Q4 		$2.36M Buy
+22,187
New +$2.06M 0.04% 102

Other funds holding WLK

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Capital World Investors
Capital World Investors Los Angeles, California $846B AUM 46.74% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return
OAG
Orbis Allan Gray Hamilton, Bermuda $29.1B AUM 60.8% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
BIP
Brandes Investment Partners La Jolla, California $14.3B AUM 23.11% 1-Year Est. Return
AQR Capital Management
AQR Capital Management Greenwich, Connecticut $287B AUM 42.33% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Magnetar Financial's WLK Position: Q2 2026 in Review

Magnetar Financial opened a new position in Westlake Corp (WLK) in Q2 2026: 16,922 shares worth $1.24M. The stake represents 0.01% of the portfolio and ranks #398 among its holdings. This is a return to the name: Magnetar Financial previously reported a position in WLK as recently as Q3 2025.

Magnetar Financial first reported a position in WLK in Q4 2017 and has held it in 12 quarters since. The position peaked at $4.34M in Q3 2024. 359 funds tracked by Wall St. Rank hold WLK as of Q2 2026.

  • Magnetar Financial held 16,922 shares of Westlake Corp worth $1.24M as of Q2 2026.
  • Westlake Corp was a new Magnetar Financial position in Q2 2026.
  • Westlake Corp made up 0.01% of Magnetar Financial's portfolio in Q2 2026, its #398 holding.
  • Magnetar Financial first reported a position in Westlake Corp in Q4 2017 and has held it in 12 quarters since.
  • Magnetar Financial's Westlake Corp position peaked at $4.34M in Q3 2024.
  • 359 funds tracked by Wall St. Rank held Westlake Corp as of Q2 2026.

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