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WLK — WESTLAKE CORPORATION

Reported value held$1.51B
Funds holding (latest)47
SectorIndustrials
Funds holding (Q2 2026)34
Institutional value$1.14B · 17.75M sh
New / Add / Cut / Exit5 / 12 / 17 / 3
Top-5 / Top-10 concentration65.2% / 81.8%
Institutional holdings change Reducing -9.9% (-1.94M sh)
Institutional value change Down -43.8%

As of Q2 2026, 34 SEC-registered investment managers reported holding WLK (WESTLAKE CORPORATION) in their latest 13F filings, with a combined reported value of $1.14B across 17.75M shares. That is -9.9% by share count (-1.94M shares) versus the previous quarter, while reported value moved -43.8%. Ownership is concentrated: the five largest holders account for 65.2% of reported value and the top ten for 81.8%.

Compared with the prior quarter, 5 opened new positions, 12 added to existing stakes, 17 trimmed, 3 exited entirely. 13F holdings are quarter-end snapshots, so these moves reflect positioning as of Q2 2026, not real-time trading.

WLK is classified in the Industrials sector.

All figures on this page are computed from SEC Form 13F quarterly filings. 13F filers disclose long positions of $100,000 or more within 45 days of quarter end; short positions, options overlays and intra-quarter trades are not included, so treat the numbers as a quarterly snapshot of institutional ownership rather than real-time positioning.

Q2 2026 — 34 funds

FundSharesValuePortfolio WeightChange
BlackRock Inc history 3.29M $240.47M 0.00% Add
Capital World Investors history 2.84M $207.49M 0.03% Reduce
AQR Capital Management history 1.57M $114.64M 0.04% Add
Goldman Sachs Group history 1.28M $93.50M 0.01% Reduce
Citadel Advisors history 1.15M $84.06M 0.01% Add
Geode Capital Management history 718.60K $52.47M 0.00% Add
Balyasny Asset Management history 625.86K $45.69M 0.06% Add
Morgan Stanley history 437.57K $31.94M 0.00% Reduce
UBS Group AG history 431.63K $31.51M 0.00% Reduce
Millennium Management history 366.07K $26.72M 0.01% Add
Fidelity Management & Research (FMR) history 361.24K $26.37M 0.00% Reduce
Charles Schwab Investment Management history 318.82K $23.27M 0.00% Add
Northern Trust Corp history 262.93K $19.19M 0.00% Reduce
Bank of America Corp history 232.21K $16.95M 0.00% Reduce
Norges Bank Investment Management history 214.10K $15.63M 0.00% Add
D. E. Shaw & Co history 200.53K $14.64M 0.01% Reduce
Invesco Ltd history 190.95K $13.94M 0.00% Add
JPMorgan Chase & Co history 163.29K $12.30M 0.00% New
BNY Mellon history 163.46K $11.93M 0.00% Reduce
Wellington Management Group history 141.82K $10.35M 0.00% Reduce
Marshall Wace history 111.57K $8.14M 0.01% New
Wells Fargo & Co history 105.94K $7.73M 0.00% Reduce
Point72 Asset Management history 89.73K $6.55M 0.01% New
Principal Global Investors history 75.65K $5.52M 0.00% Add
Legal & General Investment Management America history 50.02K $3.65M 0.00% Reduce
Two Sigma Investments history 45.36K $3.31M 0.00% New
Manulife Financial history 37.16K $2.71M 0.00% Add
Citigroup Inc history 36.57K $2.67M 0.00% Reduce
CPP Investments history 14.21K $1.04M 0.00% Add
Arrowstreet Capital history 4.03K $294.26K 0.00% New
First Eagle Investment Management history 2.83K $206.96K 0.00% Reduce
T. Rowe Price Associates history 2.21M $161.09K 0.02% Reduce
Deutsche Bank AG history 2.17K $158.34K 0.00% Reduce
PNC Financial Services history 1.27K $92.71K 0.00% Reduce

Q1 2026 — 31 funds

FundSharesValuePortfolio WeightChange
Capital World Investors history 4.21M $491.93M 0.07% Add
BlackRock Inc history 3.08M $359.70M 0.01% Reduce
Wellington Management Group history 1.79M $209.52M 0.04% Reduce
Goldman Sachs Group history 1.39M $162.77M 0.02% Add
Fidelity Management & Research (FMR) history 1.31M $153.32M 0.01% Add
Citadel Advisors history 847.19K $98.97M 0.02% Add
UBS Group AG history 811.27K $94.77M 0.01% Add
Geode Capital Management history 614.33K $71.78M 0.00% Add
Morgan Stanley history 486.51K $56.83M 0.00% Reduce
Balyasny Asset Management history 369.67K $43.19M 0.06% New
Charles Schwab Investment Management history 311.76K $36.42M 0.01% Add
Janus Henderson Group history 269.78K $31.52M 0.02% Reduce
Northern Trust Corp history 269.15K $31.44M 0.00% Hold
AQR Capital Management history 260.07K $30.38M 0.01% Add
D. E. Shaw & Co history 239.78K $28.01M 0.02% Reduce
Bank of America Corp history 236.99K $27.68M 0.00% Add
BNY Mellon history 181.07K $21.15M 0.00% Add
Invesco Ltd history 179.40K $20.96M 0.00% Reduce
Wells Fargo & Co history 106.70K $12.47M 0.00% Add
Millennium Management history 85.00K $9.93M 0.00% Reduce
Principal Global Investors history 74.48K $8.70M 0.01% Add
Citigroup Inc history 54.56K $6.37M 0.00% Add
Legal & General Investment Management America history 50.74K $5.93M 0.00% Reduce
Manulife Financial history 33.30K $3.89M 0.00% Hold
First Eagle Investment Management history 7.12K $831.52K 0.00% Add
T. Rowe Price Associates history 2.41M $281.24K 0.03% Add
Deutsche Bank AG history 2.37K $276.86K 0.00% Add
Prudential Financial history 2.23K $260.27K 0.00% New
CPP Investments history 2.21K $258.17K 0.00% Reduce
Amundi US history 2.00K $233.29K 0.00% New
PNC Financial Services history 1.52K $177.80K 0.00% Add

Q4 2025 — 33 funds

FundSharesValuePortfolio WeightChange
Wellington Management Group history 4.22M $312.08M 0.06% Add
Vanguard Group history 3.92M $289.65M 0.00% Add
BlackRock Inc history 3.26M $241.15M 0.00% Add
Capital World Investors history 2.17M $160.55M 0.02% New
Morgan Stanley history 759.62K $56.17M 0.00% Reduce
Goldman Sachs Group history 753.95K $55.75M 0.01% Reduce
UBS Group AG history 648.01K $47.91M 0.01% Add
Geode Capital Management history 594.92K $44.00M 0.00% Reduce
D. E. Shaw & Co history 492.88K $36.44M 0.02% Add
Millennium Management history 427.75K $31.63M 0.01% Add
Citadel Advisors history 366.80K $27.12M 0.00% Reduce
Janus Henderson Group history 334.59K $24.74M 0.01% Reduce
Charles Schwab Investment Management history 297.25K $21.98M 0.00% Add
Northern Trust Corp history 268.63K $19.86M 0.00% Add
Fidelity Management & Research (FMR) history 228.84K $16.92M 0.00% Reduce
Invesco Ltd history 213.16K $15.76M 0.00% Add
Two Sigma Investments history 201.28K $14.88M 0.02% Add
Bank of America Corp history 184.44K $13.64M 0.00% Reduce
Norges Bank Investment Management history 181.33K $13.41M 0.00% Reduce
BNY Mellon history 174.32K $12.89M 0.00% Reduce
Wells Fargo & Co history 91.88K $6.79M 0.00% Reduce
Lazard Asset Management history 74.43K $5.50M 0.01% Add
Principal Global Investors history 71.72K $5.30M 0.00% Reduce
JPMorgan Chase & Co history 67.32K $4.98M 0.00% Reduce
Legal & General Investment Management America history 57.25K $4.23M 0.00% Add
Manulife Financial history 33.45K $2.47M 0.00% Add
Citigroup Inc history 27.34K $2.02M 0.00% Reduce
AQR Capital Management history 20.54K $1.52M 0.00% Reduce
CPP Investments history 7.93K $586.42K 0.00% Add
T. Rowe Price Associates history 2.21M $163.31K 0.02% Hold
PNC Financial Services history 1.33K $98.71K 0.00% Reduce
Deutsche Bank AG history 1.08K $80.15K 0.00% New
First Eagle Investment Management history 53 $3.92K 0.00% New

Q3 2025 — 37 funds

FundSharesValuePortfolio WeightChange
Vanguard Group history 3.44M $265.06M 0.00% Reduce
BlackRock Inc history 3.19M $245.49M 0.01% Reduce
Citadel Advisors history 1.27M $98.17M 0.01% Add
Goldman Sachs Group history 1.05M $81.02M 0.01% Reduce
Morgan Stanley history 815.63K $62.85M 0.00% Add
Geode Capital Management history 653.09K $50.34M 0.00% Add
UBS Group AG history 560.48K $43.19M 0.01% Add
Balyasny Asset Management history 475.74K $36.66M 0.05% Add
CDPQ (Caisse de Depot) history 368.32K $28.38M 0.05% New
Janus Henderson Group history 365.98K $28.20M 0.01% Add
Fidelity Management & Research (FMR) history 314.35K $24.22M 0.00% Reduce
Arrowstreet Capital history 299.73K $23.10M 0.01% Add
Charles Schwab Investment Management history 272.96K $21.03M 0.00% Add
Northern Trust Corp history 238.14K $18.35M 0.00% Add
Bank of America Corp history 208.90K $16.10M 0.00% Add
BNY Mellon history 177.98K $13.72M 0.00% Reduce
D. E. Shaw & Co history 160.01K $12.33M 0.01% Reduce
JPMorgan Chase & Co history 157.79K $12.16M 0.00% Reduce
Invesco Ltd history 134.70K $10.38M 0.00% Add
Citigroup Inc history 117.15K $9.03M 0.00% Add
Millennium Management history 106.32K $8.19M 0.00% Reduce
Two Sigma Investments history 102.97K $7.93M 0.01% Reduce
Wells Fargo & Co history 97.13K $7.48M 0.00% Add
Point72 Asset Management history 84.88K $6.54M 0.01% New
Principal Global Investors history 74.11K $5.71M 0.00% Reduce
Lazard Asset Management history 72.62K $5.60M 0.01% Reduce
Wellington Management Group history 57.51K $4.43M 0.00% New
Marshall Wace history 56.46K $4.35M 0.00% Add
AQR Capital Management history 52.52K $4.01M 0.00% Reduce
Legal & General Investment Management America history 36.63K $2.82M 0.00% Reduce
Amundi US history 26.77K $2.19M 0.00% Reduce
Manulife Financial history 28.08K $2.16M 0.00% Hold
Renaissance Technologies history 25.90K $2.00M 0.00% Reduce
CPP Investments history 5.21K $401.48K 0.00% Reduce
Prudential Financial history 3.68K $283.43K 0.00% Reduce
T. Rowe Price Associates history 2.21M $170.16K 0.02% Add
PNC Financial Services history 1.54K $118.98K 0.00% Add

Q2 2025 — 37 funds

FundSharesValuePortfolio WeightChange
Vanguard Group history 3.52M $267.49M 0.00% Reduce
BlackRock Inc history 3.33M $252.75M 0.01% Reduce
Fidelity Management & Research (FMR) history 1.62M $122.65M 0.01% Add
Norges Bank Investment Management history 1.37M $104.31M 0.01% Add
Goldman Sachs Group history 1.06M $80.41M 0.01% Add
Millennium Management history 789.85K $59.97M 0.03% Reduce
Geode Capital Management history 574.23K $43.61M 0.00% Hold
Morgan Stanley history 462.49K $35.12M 0.00% Add
UBS Group AG history 443.47K $33.67M 0.01% Reduce
D. E. Shaw & Co history 346.06K $26.28M 0.02% Add
Arrowstreet Capital history 290.04K $22.02M 0.02% New
Charles Schwab Investment Management history 256.85K $19.50M 0.00% Add
Northern Trust Corp history 232.96K $17.69M 0.00% Reduce
Janus Henderson Group history 214.28K $16.27M 0.01% Reduce
BNY Mellon history 184.31K $13.99M 0.00% Reduce
JPMorgan Chase & Co history 167.59K $12.73M 0.00% Add
Renaissance Technologies history 144.20K $10.95M 0.01% Reduce
Bank of America Corp history 138.65K $10.53M 0.00% Reduce
AQR Capital Management history 133.35K $10.03M 0.01% Add
Invesco Ltd history 124.56K $9.46M 0.00% Reduce
Two Sigma Investments history 122.11K $9.27M 0.02% Reduce
Wells Fargo & Co history 85.43K $6.49M 0.00% Add
Citadel Advisors history 85.01K $6.45M 0.00% Reduce
Balyasny Asset Management history 79.85K $6.06M 0.01% Reduce
Principal Global Investors history 75.61K $5.74M 0.00% Reduce
Amundi US history 69.67K $5.70M 0.00% Add
Legal & General Investment Management America history 75.08K $5.70M 0.00% Reduce
Citigroup Inc history 72.63K $5.51M 0.00% Add
CPP Investments history 49.34K $3.75M 0.00% Add
Manulife Financial history 28.13K $2.14M 0.00% Add
Marshall Wace history 8.11K $615.87K 0.00% New
First Eagle Investment Management history 6.88K $522.78K 0.00% Add
Prudential Financial history 3.79K $287.62K 0.00% Add
T. Rowe Price Associates history 2.06M $156.31K 0.02% Add
Deutsche Bank AG history 1.56K $118.53K 0.00% Reduce
PNC Financial Services history 1.43K $108.81K 0.00% Add
Lazard Asset Management history 74.07K $5.62K 0.01% Reduce

Q1 2025 — 38 funds

FundSharesValuePortfolio WeightChange
BlackRock Inc history 3.66M $366.15M 0.01% Hold
Vanguard Group history 3.55M $355.14M 0.01% Reduce
Fidelity Management & Research (FMR) history 1.55M $154.93M 0.01% Add
Capital World Investors history 1.29M $129.05M 0.02% Hold
Goldman Sachs Group history 1.04M $104.15M 0.02% Add
Citadel Advisors history 910.16K $91.04M 0.02% Add
Millennium Management history 901.23K $90.15M 0.05% Add
UBS Group AG history 609.08K $60.93M 0.01% Add
Geode Capital Management history 576.78K $57.55M 0.01% Add
Balyasny Asset Management history 521.88K $52.20M 0.09% Reduce
Janus Henderson Group history 394.52K $39.10M 0.02% Add
Northern Trust Corp history 314.62K $31.47M 0.01% Add
Renaissance Technologies history 280.10K $28.02M 0.04% Reduce
Two Sigma Investments history 266.07K $26.62M 0.06% Add
Morgan Stanley history 262.56K $26.26M 0.00% Reduce
Charles Schwab Investment Management history 244.50K $24.46M 0.01% Add
D. E. Shaw & Co history 228.36K $22.84M 0.02% Reduce
Bank of America Corp history 221.44K $22.15M 0.00% Add
BNY Mellon history 219.68K $21.97M 0.00% Reduce
Legal & General Investment Management America history 145.00K $14.50M 0.00% Reduce
Invesco Ltd history 134.38K $13.44M 0.00% Reduce
JPMorgan Chase & Co history 129.03K $12.91M 0.00% Add
Principal Global Investors history 77.00K $7.70M 0.00% Hold
Wells Fargo & Co history 61.21K $6.12M 0.00% Add
Amundi US history 50.77K $4.78M 0.00% Reduce
CPP Investments history 39.36K $3.94M 0.00% Reduce
Deutsche Bank AG history 33.23K $3.32M 0.00% Reduce
Citigroup Inc history 28.25K $2.83M 0.00% Reduce
Manulife Financial history 27.97K $2.80M 0.00% Add
AQR Capital Management history 19.09K $1.88M 0.00% Add
First Eagle Investment Management history 6.09K $608.98K 0.00% Add
Wellington Management Group history 4.67K $467.54K 0.00% Reduce
Prudential Financial history 3.21K $320.70K 0.00% Reduce
Franklin Resources history 2.07K $207.16K 0.00% Reduce
PNC Financial Services history 1.28K $128.24K 0.00% Add
Lazard Asset Management history 111.51K $11.15K 0.02% Add
T. Rowe Price Associates history 21.18K $2.12K 0.00% Reduce
Saudi Arabian Monetary Authority history 15 $1.50K 0.01% New

View all 47 fund holders →

New Positions (Q2 2026)

Fully Exited (vs previous quarter)

Fund Position History — shares by quarter (top 20 funds)

FundQ2 2026Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023Q3 2023Q2 2023Q1 2023Q4 2022Q3 2022Q2 2022Q1 2022Q4 2021Q3 2021
BlackRock Inc 3.29M 3.08M 3.26M 3.19M 3.33M 3.66M 3.66M 3.50M — — — — — — — — — — — —
Capital World Investors 2.84M 4.21M 2.17M — — 1.29M 1.29M 1.29M 1.33M 1.33M 1.31M 636.11K — — — — — — — —
AQR Capital Management 1.57M 260.07K 20.54K 52.52K 133.35K 19.09K 17.43K 90.25K 142.87K 143.72K 195.47K 310.61K 292.77K 469.48K 559.27K 661.26K 413.94K 524.60K 514.58K 490.60K
Goldman Sachs Group 1.28M 1.39M 753.95K 1.05M 1.06M 1.04M 938.92K 667.49K 658.39K 662.68K 689.40K 705.50K 776.56K 737.44K 837.40K 801.68K 830.40K 794.76K 950.43K 999.42K
Citadel Advisors 1.15M 847.19K 366.80K 1.27M 85.01K 910.16K 767.83K 625.65K 653.58K 631.27K 613.18K 824.15K 914.15K 1.27M 439.38K 180.49K 227.04K 319.66K 236.69K 668.69K
Geode Capital Management 718.60K 614.33K 594.92K 653.09K 574.23K 576.78K 557.94K 552.65K 529.09K 507.36K 485.54K 474.14K 486.01K 470.47K 451.00K 436.38K 443.61K 423.92K 411.55K 398.87K
Balyasny Asset Management 625.86K 369.67K — 475.74K 79.85K 521.88K 993.15K 119.26K — 201.29K — — 4.50K 610.89K 117.46K 87.53K 45.09K 23.42K — 561.23K
Morgan Stanley 437.57K 486.51K 759.62K 815.63K 462.49K 262.56K 301.55K 325.46K 324.22K 317.99K 255.90K 330.02K 313.79K 331.90K 319.98K 596.19K 660.58K 459.88K 659.24K 527.69K
UBS Group AG 431.63K 811.27K 648.01K 560.48K 443.47K 609.08K 557.56K 100.51K 20.67K 32.25K 48.17K 31.20K 64.72K 12.55K 21.16K 2.87K 35.26K 20.94K 15.98K 56.38K
Millennium Management 366.07K 85.00K 427.75K 106.32K 789.85K 901.23K 193.09K 86.76K 131.62K 96.28K 24.88K 200.26K 25.78K 3.53K 8.45K 129.59K 21.66K 116.03K 140.79K 1.29M
Fidelity Management & Research (FMR) 361.24K 1.31M 228.84K 314.35K 1.62M 1.55M 1.44M 2.73M 4.11M 4.36M 4.30M 4.63M 4.53M 4.22M 3.59M 3.57M 2.98M 1.73M 1.11M 744.76K
Charles Schwab Investment Management 318.82K 311.76K 297.25K 272.96K 256.85K 244.50K 236.35K 224.36K 238.10K 232.89K 352.92K 344.63K 353.06K 344.80K 337.94K 334.62K 316.22K 304.91K 297.73K 289.19K
Northern Trust Corp 262.93K 269.15K 268.63K 238.14K 232.96K 314.62K 305.66K 271.18K 273.97K 246.47K 302.29K 321.89K 316.49K 303.31K 307.54K 209.07K 222.64K 178.28K 178.40K 164.05K
Bank of America Corp 232.21K 236.99K 184.44K 208.90K 138.65K 221.44K 50.20K 128.74K 90.06K 592.62K 70.49K 82.86K 100.42K 142.99K 498.42K 967.21K 939.85K 441.33K 354.48K 123.70K
Norges Bank Investment Management 214.10K — 181.33K — 1.37M — 406.71K — 395.34K — 364.11K — — — 309.33K — — — — —
D. E. Shaw & Co 200.53K 239.78K 492.88K 160.01K 346.06K 228.36K 252.75K 62.36K — 3.07K 3.88K 32.26K — 22.89K 99.72K 144.78K 53.50K 35.30K 11.77K 68.13K
Invesco Ltd 190.95K 179.40K 213.16K 134.70K 124.56K 134.38K 148.02K 177.29K 199.23K 309.97K 428.01K 304.43K 195.00K 251.31K 263.85K 102.19K 157.50K 115.54K 86.64K 76.16K
JPMorgan Chase & Co 163.29K — 67.32K 157.79K 167.59K 129.03K 111.23K 113.55K 115.46K 131.46K 93.29K 91.65K 96.59K 64.27K 126.04K 119.31K 106.70K 54.55K 73.76K 481.69K
BNY Mellon 163.46K 181.07K 174.32K 177.98K 184.31K 219.68K 225.98K 320.78K 338.55K 340.50K 349.18K 375.33K 403.09K 416.39K 433.33K 265.32K 223.69K 243.25K 233.17K 307.65K
Wellington Management Group 141.82K 1.79M 4.22M 57.51K — 4.67K 42.93K 40.65K 48.52K 47.98K 46.07K 50.19K 36.61K 28.76K 46.35K 47.99K 159.84K 182.25K 186.08K 32.83K

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