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PRICE T ROWE ASSOCIATES INC /MD/

Position in WLK — Westlake Corp

CIK 80255 BALTIMORE, MD

Position in WLK

as of Mar 31, 2026 · filed May 15, 2026
Position Value
$281,239,126
+$117,926,740 QoQ
Shares Held
2,407,457
+9.0% QoQ
Ownership
1.88%
of shares outstanding
% of Portfolio
0.03%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Mar 2020
25 quarters on record
Voting authority Sole 99.63816591532061.ToString("F0")% Shared 0.ToString("F0")% None 0.3618340846793941.ToString("F0")%

Common Shares in WLK Over Time

Shares Held

Position Value (USD)

Position in Specialty Chemicals

Basic Materials · as of Mar 31, 2026

PRICE T ROWE ASSOCIATES INC /MD/ holds $8,350,976,946 across 45 Specialty Chemicals names. WLK ranks #5 (3.4% of the industry book) .

# Ticker Company Shares Value (USD) Open
5 WLK
Westlake Corp
This page
2,407,457 $281,239,126

All Filings in WLK

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25 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $281,239,126 2,407,457
2025-12-31 $163,312,386 2,208,715
2025-09-30 $170,159,498 2,208,143
2025-06-30 $156,308,586 2,058,588
2025-03-31 $2,118,935 21,183
2024-12-31 $2,536,516 22,124
2024-09-30 $2,971,233 19,770
2024-06-30 $2,815,300 19,440
2024-03-31 $2,651,844 17,355
2023-12-31 $5,919,887 42,297
2023-09-30 $5,259,577 42,188
2023-06-30 $4,374,513 36,616
2023-03-31 $3,162,426 27,267
2022-12-31 $2,765,708 26,972
2022-09-30 $2,372,605 27,309
2022-06-30 $2,366,300 24,141
2022-03-31 $143,563,560 1,163,400
2021-12-31 $120,153,695 1,237,040
2021-09-30 $112,866,044 1,238,381
2021-06-30 $184,078,554 2,043,274
2021-03-31 $325,856,725 3,669,971
2020-12-31 $296,063,976 3,628,235
2020-09-30 $265,250,447 4,195,673
2020-06-30 $232,704,621 4,337,458
2020-03-31 $162,768,140 4,264,295