Position in IOSP
as of Jun 30, 2026
· filed Aug 10, 2026
Position Value
$19,275,837
+$2,712,492 QoQ
Shares Held
236,833
+4.4% QoQ
Ownership
0.962%
of shares outstanding
% of Portfolio
6.52%
of 13F equity value
Holder Rank
#22
of 282 holders
Holding Since
Sep 2025
4 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, 2026Western Standard LLC holds $19,275,837 across 1 Specialty Chemicals name. IOSP ranks #1 (100.0% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | IOSP |
Innospec Inc.
This page
|
236,833 | $19,275,837 |
All Filings in IOSP
Export CSV
4 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $19,275,837 | 236,833 | Shares | Sole | 2026-08-10 | |
| 2026-03-31 | $16,563,345 | 226,833 | Shares | Sole | 2026-05-05 | |
| 2025-12-31 | $20,540,810 | 268,367 | Shares | Sole | 2026-02-03 | |
| 2025-09-30 | $2,083,320 | 27,000 | Shares | Sole | 2025-11-12 | |
| No filing history on record for this holder in this stock. | ||||||