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South Dakota Investment Council

Position in WLK — Westlake Corp

CIK 1538846 SIOUX FALLS, SD

Position in WLK

as of Jun 30, 2026 · filed Aug 11, 2026
Position Value
$1,411,455
-$952,397 QoQ
Shares Held
19,335
-4.4% QoQ
Ownership
0.015%
of shares outstanding
% of Portfolio
0.03%
of 13F equity value
Holder Rank
#119
of 358 holders
Holding Since
Sep 2023
12 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

South Dakota Investment Council holds $53,372,937 across 14 Specialty Chemicals names. WLK ranks #7 (2.6% of the industry book) .

# Ticker Company Shares Value (USD) Open
7 WLK
Westlake Corp
This page
19,335 $1,411,455

All Filings in WLK

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12 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $1,411,455 19,335
2026-03-31 $2,363,852 20,235
2025-12-31 $1,496,175 20,235
2025-09-30 $1,728,841 22,435
2025-06-30 $1,680,710 22,135
2025-03-31 $2,214,164 22,135
2024-12-31 $2,537,777 22,135
2024-09-30 $3,326,669 22,135
2024-06-30 $3,205,590 22,135
2024-03-31 $3,385,284 22,155
2023-12-31 $3,380,733 24,155
2023-09-30 $3,011,403 24,155