Position in IOSP
as of Mar 31, 2026
· filed May 12, 2026
Position Value
$19,082,754
-$4,279,244 QoQ
Shares Held
261,336
-14.4% QoQ
Ownership
1.06%
of shares outstanding
% of Portfolio
0.19%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
25 quarters on record
Voting authority
Sole 100.ToString("F0")%
Shared 0.ToString("F0")%
None 0.ToString("F0")%
Common Shares in IOSP Over Time
Shares Held
Position Value (USD)
Position in Specialty Chemicals
Basic Materials · as of Mar 31, 2026ROYCE & ASSOCIATES LP holds $325,246,803 across 10 Specialty Chemicals names. IOSP ranks #5 (5.9% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | KWR |
Quaker Chemical Corp
|
823,903 | $102,353,469 | |
| 2 | ESI |
Element Solutions Inc
|
1,964,886 | $67,081,208 | |
| 3 | NGVT |
Ingevity Corp
|
883,527 | $62,933,628 | |
| 4 | WDFC |
Wd 40 Co
|
180,847 | $36,881,937 | |
| 5 | IOSP |
Innospec Inc.
This page
|
261,336 | $19,082,754 | |
| 6 | HWKN |
Hawkins Inc
|
78,682 | $12,085,555 | |
| 7 | MTX |
Minerals Technologies Inc
|
160,265 | $11,365,993 | |
| 8 | ODC |
Oil-Dri Corp of America
|
113,314 | $7,375,608 |
All Filings in IOSP
Export CSV
25 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $19,082,754 | 261,336 | Shares | Sole | 2026-05-12 | |
| 2025-12-31 | $23,361,998 | 305,226 | Shares | Sole | 2026-02-09 | |
| 2025-09-30 | $38,010,096 | 492,614 | Shares | Sole | 2025-11-12 | |
| 2025-06-30 | $52,766,643 | 627,502 | Shares | Sole | 2025-08-11 | |
| 2025-03-31 | $61,932,011 | 653,636 | Shares | Sole | 2025-05-06 | |
| 2024-12-31 | $85,594,872 | 777,711 | Shares | Sole | 2025-02-10 | |
| 2024-09-30 | $94,467,808 | 835,333 | Shares | Sole | 2024-11-06 | |
| 2024-06-30 | $94,476,027 | 764,431 | Shares | Sole | 2024-08-13 | |
| 2024-03-31 | $103,574,278 | 803,275 | Shares | Sole | 2024-05-13 | |
| 2023-12-31 | $101,565,165 | 824,125 | Shares | Sole | 2024-02-12 | |
| 2023-09-30 | $86,629,830 | 847,650 | Shares | Sole | 2023-11-09 | |
| 2023-06-30 | $86,106,207 | 857,290 | Shares | Sole | 2023-08-07 | |
| 2023-03-31 | $85,364,663 | 831,447 | Shares | Sole | 2023-05-23 | |
| 2022-12-31 | $89,563,904 | 870,736 | Shares | Sole | 2023-05-23 | |
| 2022-09-30 | $89,755,430 | 1,047,688 | Shares | Sole | 2022-11-03 | |
| 2022-06-30 | $102,334,755 | 1,068,324 | Shares | Sole | 2022-08-04 | |
| 2022-03-31 | $111,315,067 | 1,202,756 | Shares | Sole | 2022-05-05 | |
| 2021-12-31 | $122,093,335 | 1,351,487 | Shares | Sole | 2022-02-07 | |
| 2021-09-30 | $100,897,075 | 1,198,018 | Shares | Sole | 2021-11-10 | |
| 2021-06-30 | $83,023,677 | 916,275 | Shares | Sole | 2021-08-06 | |
| 2021-03-31 | $93,951,594 | 914,905 | Shares | Sole | 2021-05-10 | |
| 2020-12-31 | $80,746,796 | 889,968 | Shares | Sole | 2021-02-08 | |
| 2020-09-30 | $42,789,313 | 675,763 | Shares | Sole | 2020-11-12 | |
| 2020-06-30 | $52,413,429 | 678,491 | Shares | Sole | 2020-08-07 | |
| 2020-03-31 | $48,372,127 | 696,102 | Shares | Sole | 2020-05-12 | |
| No filing history on record for this holder in this stock. | ||||||