Position in IOSP
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$33,245,210
+$11,597,337 QoQ
Shares Held
408,468
+37.8% QoQ
Ownership
1.66%
of shares outstanding
% of Portfolio
0.06%
of 13F equity value
Holder Rank
#13
of 280 holders
Holding Since
Dec 2020
7 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in IOSP Over Time
Shares Held
Position Value (USD)
Position in Specialty Chemicals
Basic Materials · as of Jun 30, 2026BROWN ADVISORY INC holds $587,228,860 across 23 Specialty Chemicals names. IOSP ranks #6 (5.7% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | ECL |
Ecolab Inc.
|
891,145 | $248,281,908 | |
| 2 | NGVT |
Ingevity Corp
|
974,107 | $72,736,569 | |
| 3 | ECVT |
Ecovyst Inc.
|
4,533,515 | $56,442,261 | |
| 4 | LIN |
Linde PLC
|
104,570 | $54,265,554 | |
| 5 | FUL |
Fuller H B Co
|
737,608 | $42,995,170 | |
| 6 | IOSP |
Innospec Inc.
This page
|
408,468 | $33,245,210 | |
| 7 | CLMT |
Calumet, Inc. /DE
|
535,044 | $19,272,284 | |
| 8 | DD |
DuPont de Nemours, Inc.
|
128,442 | $17,421,871 |
All Filings in IOSP
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7 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $33,245,210 | 408,468 | Shares | Defined | 2026-08-14 | |
| 2026-03-31 | $21,647,873 | 296,465 | Shares | Defined | 2026-05-15 | |
| 2025-12-31 | $23,419,479 | 305,977 | Shares | Defined | 2026-02-13 | |
| 2025-09-30 | $27,003,838 | 349,972 | Shares | Defined | 2025-11-14 | |
| 2025-06-30 | $35,868,084 | 426,544 | Shares | Defined | 2025-08-13 | |
| 2025-03-31 | $31,212,070 | 329,415 | Shares | Defined | 2025-04-30 | |
| 2020-12-31 | $206,864 | 2,280 | Shares | Defined | 2021-02-12 | |
| No filing history on record for this holder in this stock. | ||||||