CHARLES SCHWAB INVESTMENT MANAGEMENT INC
Position in WLK — Westlake Corp
CIK 884546
SAN FRANCISCO, CA
Position in WLK
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$23,274,079
-$13,145,957 QoQ
Shares Held
318,823
+2.3% QoQ
Ownership
0.249%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#27
of 358 holders
Holding Since
Mar 2020
26 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, 2026CHARLES SCHWAB INVESTMENT MANAGEMENT INC holds $6,095,445,411 across 47 Specialty Chemicals names. WLK ranks #31 (0.4% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | LIN |
Linde PLC
|
4,079,179 | $2,116,849,149 | |
| 2 | SHW |
Sherwin Williams Co
|
1,824,364 | $628,165,011 | |
| 3 | ECL |
Ecolab Inc.
|
2,249,728 | $626,796,717 | |
| 4 | APD |
Air Products & Chemicals, Inc.
|
1,410,715 | $413,593,422 | |
| 5 | PPG |
Ppg Industries Inc
|
3,051,771 | $370,149,303 | |
| 6 | ALB |
Albemarle Corp
|
1,126,909 | $152,166,522 | |
| 7 | SOLS |
Solstice Advanced Materials Inc.
|
1,666,024 | $147,609,725 | |
| 8 | IFF |
International Flavors & Fragrances Inc
|
1,842,468 | $145,960,314 |
All Filings in WLK
Export CSV
26 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $23,274,079 | 318,823 | Shares | Other | 2026-08-14 | |
| 2026-03-31 | $36,420,036 | 311,762 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $21,978,517 | 297,248 | Shares | Sole | 2026-02-13 | |
| 2025-09-30 | $21,034,451 | 272,962 | Shares | Sole | 2025-11-10 | |
| 2025-06-30 | $19,502,240 | 256,845 | Shares | Sole | 2025-08-12 | |
| 2025-03-31 | $24,457,034 | 244,497 | Shares | Sole | 2025-09-15 | |
| 2024-12-31 | $27,097,986 | 236,354 | Shares | Sole | 2025-02-06 | |
| 2024-09-30 | $33,719,364 | 224,362 | Shares | Sole | 2024-11-12 | |
| 2024-06-30 | $34,481,352 | 238,098 | Shares | Sole | 2024-08-12 | |
| 2024-03-31 | $35,585,744 | 232,891 | Shares | Sole | 2024-05-09 | |
| 2023-12-31 | $49,395,243 | 352,924 | Shares | Sole | 2024-02-06 | |
| 2023-09-30 | $42,965,271 | 344,632 | Shares | Sole | 2023-11-08 | |
| 2023-06-30 | $42,179,480 | 353,055 | Shares | Sole | 2023-08-10 | |
| 2023-03-31 | $39,989,904 | 344,800 | Shares | Sole | 2023-05-12 | |
| 2022-12-31 | $34,652,572 | 337,942 | Shares | Sole | 2023-02-13 | |
| 2022-09-30 | $29,071,872 | 334,621 | Shares | Sole | 2022-11-14 | |
| 2022-06-30 | $30,996,178 | 316,223 | Shares | Sole | 2022-08-15 | |
| 2022-03-31 | $37,626,140 | 304,912 | Shares | Sole | 2022-05-13 | |
| 2021-12-31 | $28,918,903 | 297,734 | Shares | Sole | 2022-02-11 | |
| 2021-09-30 | $26,356,685 | 289,189 | Shares | Sole | 2021-11-16 | |
| 2021-06-30 | $25,725,469 | 285,553 | Shares | Sole | 2021-08-16 | |
| 2021-03-31 | $25,587,857 | 288,184 | Shares | Sole | 2021-05-17 | |
| 2020-12-31 | $23,931,158 | 293,274 | Shares | Sole | 2021-02-16 | |
| 2020-09-30 | $18,146,668 | 287,040 | Shares | Sole | 2020-11-13 | |
| 2020-06-30 | $16,358,636 | 304,914 | Shares | Sole | 2020-08-20 | |
| 2020-03-31 | $12,305,626 | 322,390 | Shares | Sole | 2020-05-15 | |
| No filing history on record for this holder in this stock. | ||||||