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State of Michigan Retirement System’s Westlake Corp WLK Stock Holding History

State of Michigan Retirement System’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
Q1 		$935K Buy
8,000
+100
+1% +$9.7K ﹤0.01% 865
2025
Q4 		$584K Hold
7,900
– – ﹤0.01% 910
2025
Q3 		$609K Sell
7,900
-100
-1% -$8.33K ﹤0.01% 914
2025
Q2 		$607K Sell
8,000
-1,000
-11% -$81.8K ﹤0.01% 907
2025
Q1 		$900K Buy
9,000
+100
+1% +$11.1K 0.01% 862
2024
Q4 		$1.02M Buy
8,900
+200
+2% +$26K 0.01% 845
2024
Q3 		$1.31M Buy
8,700
+200
+2% +$28.8K 0.01% 783
2024
Q2 		$1.23M Sell
8,500
-300
-3% -$46.1K 0.01% 790
2024
Q1 		$1.34M Buy
8,800
+200
+2% +$28.2K 0.01% 763
2023
Q4 		$1.2M Hold
8,600
– – 0.01% 776
2023
Q3 		$1.07M Sell
8,600
-1,000
-10% -$128K 0.01% 775
2023
Q2 		$1.15M Sell
9,600
-200
-2% -$22.9K 0.01% 763
2023
Q1 		$1.14M Sell
9,800
-100
-1% -$11.5K 0.01% 769
2022
Q4 		$1.02M Buy
+9,900
New +$997K 0.01% 796

Other funds holding WLK

OAG
Orbis Allan Gray Hamilton, Bermuda $23.7B AUM 65.43% 1-Year Est. Return
Capital World Investors
Capital World Investors Los Angeles, California $733B AUM 35.63% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return
BIP
Brandes Investment Partners La Jolla, California $14.1B AUM 25.52% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Goldman Sachs
Goldman Sachs New York $871B AUM 31.28% 1-Year Est. Return

State of Michigan Retirement System's WLK Position: Q1 2026 in Review

State of Michigan Retirement System increased its Westlake Corp (WLK) stake by 1.3% in Q1 2026, buying an estimated $9.7K and bringing the position to 8,000 shares worth $935K. The position accounts for ﹤0.01% of the portfolio, ranked #865.

State of Michigan Retirement System first reported a position in WLK in Q4 2022 and has held it in 14 quarters since. The position peaked at $1.34M in Q1 2024. 337 funds tracked by Wall St. Rank hold WLK as of Q1 2026.

  • State of Michigan Retirement System held 8,000 shares of Westlake Corp worth $935K as of Q1 2026.
  • State of Michigan Retirement System bought 100 Westlake Corp shares in Q1 2026, an estimated $9.7K.
  • Westlake Corp made up ﹤0.01% of State of Michigan Retirement System's portfolio in Q1 2026, its #865 holding.
  • State of Michigan Retirement System first reported a position in Westlake Corp in Q4 2022 and has held it in 14 quarters since.
  • State of Michigan Retirement System's Westlake Corp position peaked at $1.34M in Q1 2024.
  • 337 funds tracked by Wall St. Rank held Westlake Corp as of Q1 2026.

Based on State of Michigan Retirement System's 13F filing for Q1 2026, filed 4 May 2026.