Campbell & CO Investment Adviser LLC
Position in HDSN — Hudson Technologies Inc /Ny
CIK 1353570
BALTIMORE, MD
Position in HDSN
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$361,284
-$135 QoQ
Shares Held
61,443
+16.5% QoQ
Ownership
0.146%
of shares outstanding
% of Portfolio
0.02%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Sep 2025
3 quarters on record
Voting authority
Sole 0%
Shared 0%
None 100%
Common Shares in HDSN Over Time
Shares Held
Position Value (USD)
Position in Specialty Chemicals
Basic Materials · as of Mar 31, 2026Campbell & CO Investment Adviser LLC holds $29,355,669 across 19 Specialty Chemicals names. HDSN ranks #14 (1.2% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | APD |
Air Products & Chemicals, Inc.
|
28,281 | $8,215,347 | |
| 2 | ASH |
Ashland Inc.
|
84,710 | $4,710,723 | |
| 3 | ECL |
Ecolab Inc.
|
11,825 | $3,145,686 | |
| 4 | DD |
DuPont de Nemours, Inc.
|
50,151 | $2,296,915 | |
| 5 | CBT |
Cabot Corp
|
23,979 | $1,805,858 | |
| 6 | ECVT |
Ecovyst Inc.
|
117,420 | $1,510,021 | |
| 7 | IOSP |
Innospec Inc.
|
18,751 | $1,369,198 | |
| 8 | SQM |
Chemical & Mining Co Of Chile Inc
|
13,536 | $1,095,603 |
All Filings in HDSN
Export CSV
3 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $361,284 | 61,443 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $361,419 | 52,762 | Shares | Sole | 2026-02-12 | |
| 2025-09-30 | $488,734 | 49,218 | Shares | Sole | 2025-10-28 | |
| No filing history on record for this holder in this stock. | ||||||