South Dakota Investment Council

Position in WLK — Westlake Corp

CIK 1538846 SIOUX FALLS, SD

Position in WLK

as of Mar 31, 2026 · filed May 18, 2026 Compact

Position Value

$2,363,852

+$867,677 QoQ

Shares Held

20,235

0.0% QoQ

Ownership

0.016%

of shares outstanding

% of Portfolio

0.06%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Sep 2023

11 quarters on record

Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Basic Materials · as of Mar 31, 2026

South Dakota Investment Council holds $64,319,274 across 14 Specialty Chemicals names. WLK ranks #6 (3.7% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	LYB	LyondellBasell Industries N.V.	293,471	$23,642,023
2	EMN	Eastman Chemical Co	167,710	$12,799,627
3	PPG	Ppg Industries Inc	75,018	$8,017,923
4	IFF	International Flavors & Fragrances Inc	84,194	$6,108,274
5	RPM	Rpm International Inc/De/	39,925	$3,968,545
6	WLK	Westlake Corp This page	20,235	$2,363,852
7	CC	Chemours Co	85,659	$1,887,067
8	LIN	Linde PLC	3,555	$1,762,426

11 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$2,363,852	20,235	0.0%	Shares	Sole	2026-05-18
2025-12-31	$1,496,175	20,235	-9.8%	Shares	Sole	2026-02-12
2025-09-30	$1,728,841	22,435	+1.4%	Shares	Sole	2025-11-12
2025-06-30	$1,680,710	22,135	0.0%	Shares	Sole	2025-08-05
2025-03-31	$2,214,164	22,135	0.0%	Shares	Sole	2025-05-05
2024-12-31	$2,537,777	22,135	0.0%	Shares	Sole	2025-02-04
2024-09-30	$3,326,669	22,135	0.0%	Shares	Sole	2024-11-04
2024-06-30	$3,205,590	22,135	-0.1%	Shares	Sole	2024-08-08
2024-03-31	$3,385,284	22,155	-8.3%	Shares	Sole	2024-05-02
2023-12-31	$3,380,733	24,155	0.0%	Shares	Sole	2024-02-01
2023-09-30	$3,011,403	24,155	—	Shares	Sole	2023-11-07
No filing history on record for this holder in this stock.