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Luminus Management’s Westlake Corp WLK Stock Holding History

Luminus Management’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 		– Sell
-35,189
Closed -$2.6M – 29
2025
Q4 		$2.6M Buy
+35,189
New +$2.5M 2.28% 12
2023
Q4 		– Sell
-120,500
Closed -$15M – 32
2023
Q3 		$15M Sell
120,500
-1,149
-0.9% -$147K 4.63% 11
2023
Q2 		$14.5M Buy
121,649
+3,049
+3% +$349K 4.37% 9
2023
Q1 		$13.8M Buy
118,600
+28,050
+31% +$3.24M 3.38% 11
2022
Q4 		$9.28M Buy
+90,550
New +$9.12M 2.31% 12
2022
Q2 		– Sell
-79,900
Closed -$9.86M – 27
2022
Q1 		$9.86M Buy
+79,900
New +$8.71M 2.21% 7
2018
Q4 		– Sell
-135,600
Closed -$11.3M – 182
2018
Q3 		$11.3M Buy
+135,600
New +$13.3M 0.18% 76
2018
Q2 		– Sell
-436,214
Closed -$48.5M – 184
2018
Q1 		$48.5M Buy
436,214
+385,448
+759% +$42.9M 1.01% 29
2017
Q4 		$5.41M Sell
50,766
-167,800
-77% -$15.5M 0.11% 87
2017
Q3 		$18.2M Buy
+218,566
New +$16.1M 0.48% 54
2017
Q1 		– Sell
-111,000
Closed -$6.21M – 166
2016
Q4 		$6.21M Buy
+111,000
New +$6.06M 0.14% 89
2016
Q1 		– Sell
-82,180
Closed -$4.46M – 150
2015
Q4 		$4.46M Sell
82,180
-262,668
-76% -$15.2M 0.17% 87
2015
Q3 		$17.9M Buy
344,848
+256,390
+290% +$15M 0.55% 47
2015
Q2 		$6.07M Sell
88,458
-235,413
-73% -$17.1M 0.2% 79
2015
Q1 		$23.3M Buy
323,871
+278,871
+620% +$17.9M 0.83% 34
2014
Q4 		$2.75M Buy
+45,000
New +$3.06M 0.09% 91
2014
Q2 		– Sell
-26,370
Closed -$1.97M – 175
2014
Q1 		$1.75M Sell
26,370
-58,830
-69% -$3.74M 0.11% 97
2013
Q4 		$5.2M Buy
+85,200
New +$4.79M 0.3% 65
2013
Q3 		– Sell
-99,728
Closed -$4.81M – 158
2013
Q2 		$4.81M Buy
+99,728
New +$4.48M 0.4% 46

Other funds holding WLK

OAG
Orbis Allan Gray Hamilton, Bermuda $29.1B AUM 60.8% 1-Year Est. Return
Capital World Investors
Capital World Investors Los Angeles, California $846B AUM 46.74% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return
BIP
Brandes Investment Partners La Jolla, California $14.3B AUM 23.11% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Goldman Sachs
Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return

Luminus Management's WLK Position: Q1 2026 in Review

Luminus Management sold out of Westlake Corp (WLK) in Q1 2026, closing a stake of 35,189 shares — an estimated $2.6M sold.

Luminus Management first reported a position in WLK in Q2 2013 and held it in 19 quarters. The position peaked at $48.5M in Q1 2018. 339 funds tracked by Wall St. Rank hold WLK as of Q1 2026.

  • Luminus Management reported no remaining Westlake Corp position as of Q1 2026 after selling out during the quarter.
  • Luminus Management sold 35,189 Westlake Corp shares in Q1 2026, an estimated $2.6M.
  • Luminus Management first reported a position in Westlake Corp in Q2 2013 and held it in 19 quarters.
  • Luminus Management's Westlake Corp position peaked at $48.5M in Q1 2018.
  • 339 funds tracked by Wall St. Rank held Westlake Corp as of Q1 2026.

Based on Luminus Management's 13F filing for Q1 2026, filed 15 May 2026.