WESTERLY CAPITAL MANAGEMENT, LLC
Position in HDSN — Hudson Technologies Inc /Ny
CIK 1546172
SAN FRANCISCO, CA
Position in HDSN
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$18,669,000
+$1,201,500 QoQ
Shares Held
3,175,000
+24.5% QoQ
Ownership
7.55%
of shares outstanding
% of Portfolio
5.75%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Dec 2021
18 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in HDSN Over Time
Shares Held
Position Value (USD)
Position in Specialty Chemicals
Basic Materials · as of Mar 31, 2026WESTERLY CAPITAL MANAGEMENT, LLC holds $18,669,000 across 1 Specialty Chemicals name. HDSN ranks #1 (100.0% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | HDSN |
Hudson Technologies Inc /Ny
This page
|
3,175,000 | $18,669,000 |
All Filings in HDSN
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20 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $18,669,000 | 3,175,000 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $17,467,500 | 2,550,000 | Shares | Sole | 2026-02-17 | |
| 2025-12-31 | $0 | 0 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $18,767,700 | 1,890,000 | Shares | Sole | 2025-11-14 | |
| 2025-06-30 | $16,240,000 | 2,000,000 | Shares | Sole | 2025-08-14 | |
| 2025-06-16 | $20,618,000 | 2,600,000 | Shares | Sole | 2025-06-24 | |
| 2025-03-31 | $7,558,250 | 1,225,000 | Shares | Sole | 2025-05-15 | |
| 2024-12-31 | $5,678,096 | 1,017,580 | Shares | Sole | 2025-02-14 | |
| 2024-09-30 | $6,755,400 | 810,000 | Shares | Sole | 2024-11-14 | |
| 2024-06-30 | $5,933,250 | 675,000 | Shares | Sole | 2024-08-14 | |
| 2024-03-31 | $6,495,900 | 590,000 | Shares | Sole | 2024-05-15 | |
| 2023-12-31 | $6,245,870 | 463,000 | Shares | Sole | 2024-02-14 | |
| 2023-09-30 | $5,519,500 | 415,000 | Shares | Sole | 2023-11-14 | |
| 2023-06-30 | $1,683,500 | 175,000 | Shares | Sole | 2023-08-14 | |
| 2023-03-31 | $1,746,000 | 200,000 | Shares | Sole | 2023-05-15 | |
| 2022-12-31 | $4,048,000 | 400,000 | Shares | Sole | 2023-02-14 | |
| 2022-09-30 | $4,042,500 | 550,000 | Shares | Sole | 2022-11-14 | |
| 2022-06-30 | $11,678,050 | 1,555,000 | Shares | Sole | 2022-08-15 | |
| 2022-03-31 | $12,578,826 | 2,025,576 | Shares | Sole | 2022-05-16 | |
| 2021-12-31 | $9,590,400 | 2,160,000 | Shares | Sole | 2022-02-14 | |
| No filing history on record for this holder in this stock. | ||||||