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TWO SIGMA INVESTMENTS, LP

Position in WLK — Westlake Corp

CIK 1179392 NEW YORK, NY

Position in WLK

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$3,311,061
-$11,357,082 QoQ
Shares Held
45,357
-77.1% QoQ
Ownership
0.035%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#82
of 358 holders
Holding Since
Mar 2020
20 quarters on record
Voting authority Sole 99% Shared 0% None 1%

Common Shares in WLK Over Time

Shares Held

Position Value (USD)

Derivatives in WLK

reported options exposure · as of Dec 31, 2025
CallValue
$0
CallShares
0
PutValue
$214,426
PutShares
2,900

Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.

Position in Specialty Chemicals

Basic Materials · as of Jun 30, 2026

TWO SIGMA INVESTMENTS, LP holds $1,354,941,359 across 38 Specialty Chemicals names. WLK ranks #26 (0.2% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in WLK

Export CSV
21 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $3,311,061 45,357
2025-12-31 $14,668,143 198,379
2025-12-31 $214,426 2,900
2025-09-30 $7,934,482 102,965
2025-06-30 $9,272,191 122,115
2025-03-31 $26,615,082 266,071
2024-12-31 $11,960,288 104,320
2024-09-30 $21,282,416 141,609
2024-06-30 $3,778,064 26,088
2024-03-31 $4,729,007 30,949
2023-12-31 $11,892,681 84,972
2023-09-30 $12,420,124 99,624
2023-06-30 $1,612,845 13,500
2023-03-31 $1,565,730 13,500
2022-12-31 $1,056,162 10,300
2021-06-30 $10,038,458 111,427
2021-03-31 $4,912,661 55,329
2020-12-31 $840,316 10,298
2020-09-30 $214,189 3,388
2020-06-30 $981,258 18,290
2020-03-31 $1,242,624 32,555