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Magnetar Financial LLC

Position in WLK — Westlake Corp

CIK 1352851 EVANSTON, IL

Position in WLK

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$1,235,306
+$978,774 QoQ
Shares Held
16,922
+408.3% QoQ
Ownership
0.013%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
#123
of 356 holders
Holding Since
Jun 2021
8 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in WLK Over Time

Shares Held

Position Value (USD)

Position in Specialty Chemicals

Basic Materials · as of Jun 30, 2026

Magnetar Financial LLC holds $32,680,329 across 8 Specialty Chemicals names. WLK ranks #4 (3.8% of the industry book) .

# Ticker Company Shares Value (USD) Open
4 WLK
Westlake Corp
This page
16,922 $1,235,306

All Filings in WLK

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8 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $1,235,306 16,922
2025-09-30 $256,532 3,329
2025-06-30 $545,708 7,187
2025-03-31 $2,728,517 27,277
2024-09-30 $4,339,172 28,872
2023-06-30 $349,449 2,925
2022-06-30 $2,730,347 27,855
2021-06-30 $373,693 4,148