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Campbell & Co Investment Adviser’s Westlake Corp WLK Stock Holding History

Campbell & Co Investment Adviser’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 		$10.8M Buy
+148,180
New +$14.5M 0.57% 8
2025
Q1 		– Sell
-3,549
Closed -$407K – 1380
2024
Q4 		$407K Sell
3,549
-19,559
-85% -$2.55M 0.03% 739
2024
Q3 		$3.47M Buy
+23,108
New +$3.32M 0.26% 74
2022
Q3 		– Sell
-10,924
Closed -$1.07M – 966
2022
Q2 		$1.07M Buy
+10,924
New +$1.34M 0.29% 67
2021
Q3 		– Sell
-2,800
Closed -$252K – 795
2021
Q2 		$252K Sell
2,800
-600
-18% -$58.3K 0.1% 375
2021
Q1 		$302K Sell
3,400
-647
-16% -$56.2K 0.19% 228
2020
Q4 		$330K Buy
+4,047
New +$302K 0.2% 202
2018
Q1 		– Sell
-2,101
Closed -$224K – 539
2017
Q4 		$224K Buy
+2,101
New +$195K 0.17% 287
2013
Q4 		– Sell
-6,940
Closed -$363K – 317
2013
Q3 		$363K Sell
6,940
-19,616
-74% -$1M 0.07% 195
2013
Q2 		$1.28M Buy
+26,556
New +$1.19M 0.25% 120

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

Campbell & Co Investment Adviser's WLK Position: Q2 2026 in Review

Campbell & Co Investment Adviser opened a new position in Westlake Corp (WLK) in Q2 2026: 148,180 shares worth $10.8M. The stake represents 0.57% of the portfolio and ranks #8 among its holdings. This is a return to the name: Campbell & Co Investment Adviser previously reported a position in WLK as recently as Q4 2024.

Campbell & Co Investment Adviser first reported a position in WLK in Q2 2013 and has held it in 10 quarters since. 360 funds tracked by Wall St. Rank hold WLK as of Q2 2026.

  • Campbell & Co Investment Adviser held 148,180 shares of Westlake Corp worth $10.8M as of Q2 2026.
  • Westlake Corp was a new Campbell & Co Investment Adviser position in Q2 2026.
  • Westlake Corp made up 0.57% of Campbell & Co Investment Adviser's portfolio in Q2 2026, its #8 holding.
  • Campbell & Co Investment Adviser first reported a position in Westlake Corp in Q2 2013 and has held it in 10 quarters since.
  • 360 funds tracked by Wall St. Rank held Westlake Corp as of Q2 2026.

Based on Campbell & Co Investment Adviser's 13F filing for Q2 2026, filed 3 Aug 2026.