CHARLES SCHWAB INVESTMENT MANAGEMENT INC
Position in IOSP — Innospec Inc.
CIK 884546
SAN FRANCISCO, CA
Position in IOSP
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$26,716,119
-$1,874,632 QoQ
Shares Held
365,874
-2.1% QoQ
Ownership
1.49%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
25 quarters on record
Voting authority
Sole 99.99344036471572.ToString("F0")%
Shared 0.ToString("F0")%
None 0.006559635284278194.ToString("F0")%
Common Shares in IOSP Over Time
Shares Held
Position Value (USD)
Position in Specialty Chemicals
Basic Materials · as of Mar 31, 2026CHARLES SCHWAB INVESTMENT MANAGEMENT INC holds $5,831,174,062 across 45 Specialty Chemicals names. IOSP ranks #29 (0.5% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | LIN |
Linde PLC
|
3,865,271 | $1,916,246,750 | |
| 2 | SHW |
Sherwin Williams Co
|
1,710,826 | $548,405,274 | |
| 3 | DD |
DuPont de Nemours, Inc.
|
3,163,472 | $434,661,052 | |
| 4 | ECL |
Ecolab Inc.
|
1,581,311 | $420,660,352 | |
| 5 | APD |
Air Products & Chemicals, Inc.
|
1,394,640 | $405,128,973 | |
| 6 | PPG |
Ppg Industries Inc
|
2,978,998 | $318,395,305 | |
| 7 | LYB |
LyondellBasell Industries N.V.
|
2,654,786 | $213,869,560 | |
| 8 | ALB |
Albemarle Corp
|
1,159,065 | $208,086,939 |
All Filings in IOSP
Export CSV
25 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $26,716,119 | 365,874 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $28,590,751 | 373,540 | Shares | Sole | 2026-02-13 | |
| 2025-09-30 | $27,823,124 | 360,590 | Shares | Sole | 2025-11-10 | |
| 2025-06-30 | $29,950,923 | 356,177 | Shares | Sole | 2025-08-12 | |
| 2025-03-31 | $33,608,393 | 354,706 | Shares | Sole | 2025-09-15 | |
| 2024-12-31 | $38,804,624 | 352,577 | Shares | Sole | 2025-02-06 | |
| 2024-09-30 | $38,057,272 | 336,522 | Shares | Sole | 2024-11-12 | |
| 2024-06-30 | $40,172,064 | 325,043 | Shares | Sole | 2024-08-12 | |
| 2024-03-31 | $40,787,074 | 316,326 | Shares | Sole | 2024-05-09 | |
| 2023-12-31 | $37,895,067 | 307,490 | Shares | Sole | 2024-02-06 | |
| 2023-09-30 | $30,520,497 | 298,635 | Shares | Sole | 2023-11-08 | |
| 2023-06-30 | $28,776,060 | 286,500 | Shares | Sole | 2023-08-10 | |
| 2023-03-31 | $28,939,182 | 281,866 | Shares | Sole | 2023-05-12 | |
| 2022-12-31 | $28,814,480 | 280,133 | Shares | Sole | 2023-02-13 | |
| 2022-09-30 | $24,173,675 | 282,172 | Shares | Sole | 2022-11-14 | |
| 2022-06-30 | $26,557,106 | 277,243 | Shares | Sole | 2022-08-15 | |
| 2022-03-31 | $24,792,201 | 267,879 | Shares | Sole | 2022-05-13 | |
| 2021-12-31 | $23,185,128 | 256,643 | Shares | Sole | 2022-02-11 | |
| 2021-09-30 | $20,645,690 | 245,140 | Shares | Sole | 2021-11-16 | |
| 2021-06-30 | $21,338,926 | 235,503 | Shares | Sole | 2021-08-16 | |
| 2021-03-31 | $23,240,903 | 226,321 | Shares | Sole | 2021-05-17 | |
| 2020-12-31 | $19,995,803 | 220,388 | Shares | Sole | 2021-02-16 | |
| 2020-09-30 | $13,665,152 | 215,811 | Shares | Sole | 2020-11-13 | |
| 2020-06-30 | $18,529,725 | 239,867 | Shares | Sole | 2020-08-20 | |
| 2020-03-31 | $17,164,933 | 247,013 | Shares | Sole | 2020-05-15 | |
| No filing history on record for this holder in this stock. | ||||||