Position in IOSP
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$2,977,098
+$1,229,690 QoQ
Shares Held
40,771
+78.6% QoQ
Ownership
0.166%
of shares outstanding
% of Portfolio
0.22%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Sep 2025
3 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, 2026Atom Investors LP holds $15,852,534 across 7 Specialty Chemicals names. IOSP ranks #3 (18.8% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | ESI |
Element Solutions Inc
|
165,308 | $5,643,615 | |
| 2 | RPM |
Rpm International Inc/De/
|
49,677 | $4,937,893 | |
| 3 | IOSP |
Innospec Inc.
This page
|
40,771 | $2,977,098 | |
| 4 | LIN |
Linde PLC
|
1,878 | $931,037 | |
| 5 | PPG |
Ppg Industries Inc
|
5,805 | $620,438 | |
| 6 | OEC |
Orion S.A.
|
80,433 | $522,814 | |
| 7 | MTX |
Minerals Technologies Inc
|
3,097 | $219,639 |
All Filings in IOSP
Export CSV
3 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $2,977,098 | 40,771 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $1,747,408 | 22,830 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $264,273 | 3,425 | Shares | Sole | 2025-11-14 | |
| No filing history on record for this holder in this stock. | ||||||