Position in IOSP
as of Mar 31, 2026
· filed May 5, 2026
Position Value
$16,563,345
-$3,977,465 QoQ
Shares Held
226,833
-15.5% QoQ
Ownership
0.921%
of shares outstanding
% of Portfolio
8.71%
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, 2026Western Standard LLC holds $16,563,345 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
|
226,833 | $16,563,345 |
All Filings in IOSP
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3 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 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. | ||||||