Hudson Technologies Inc (HDSN)
WHOLESALE-MACHINERY, EQUIPMENT & SUPPLIES
Hudson Technologies Inc (HDSN) is listed on Nasdaq, where it has traded since November 1, 1994.
- Listed On
- Nasdaq
- Listed Since
- November 1, 1994
- Employees
- 281
- Market Cap
- $217M
About Hudson Technologies Inc
Hudson Technologies Inc is a refrigerant services company providing solutions to recurring challenges within the refrigeration industry. The company delivers environmentally sustainable offerings, covering the sale of refrigerant gases, recovery, reclamation, and reuse, as well as improving equipment performance through energy efficiency services, emergency air conditioning and refrigeration system repairs, refrigerant disposal, and carbon credit trading. It operates through one reportable segment. Its products and services are used in commercial air conditioning, industrial processing, and refrigeration systems, and include refrigerant and industrial gas sales, refrigerant management services (mainly reclamation of refrigerants), and RefrigerantSide services performed at customer sites.
Institutional ownership
In 13F filings for the quarter ended June 30, 2026, 148 institutions reported holding HDSN, with 31.6 million shares worth $181.4 million in aggregate. The largest reported holder was Hartree Partners, with 4.4 million shares worth $25.3 million. Of the 5 largest holders listed below, 3 added shares and 2 reduced their positions during the quarter.
| Institution | Shares | Value | Quarter change |
|---|---|---|---|
| Hartree Partners | 4,411,889 | $25M | Added 16.1% |
| Westerly Capital Management | 3,380,000 | $19M | Added 6.46% |
| BlackRock | 2,840,272 | $16M | Reduced 0.78% |
| Vanguard | 2,204,796 | $13M | Added 0.84% |
| Dimensional Fund Advisors | 1,967,914 | $11M | Reduced 8.4% |
Form 13F is a quarterly report that institutional investment managers with at least $100 million in qualifying securities file with the SEC. It lists long positions as of the last day of the quarter and is due within 45 days of quarter end, so these holdings describe that date rather than today.
Frequently asked questions
What is HDSN?
Hudson Technologies Inc (HDSN) is listed on Nasdaq, where it has traded since November 1, 1994.
Who are the largest institutional holders of HDSN?
In 13F filings for the quarter ended June 30, 2026, the largest reported holders of HDSN were Hartree Partners, Westerly Capital Management and BlackRock.
How many institutions own HDSN?
148 institutions reported a position in HDSN for the quarter ended June 30, 2026, worth $181.4 million in total.
Did institutions buy or sell HDSN last quarter?
Of the 5 largest reported holders, 3 added shares and 2 reduced their positions during the quarter. Every reported holder and its change is on the SentiSense ownership page for HDSN.
Every reported institutional holder, plus insider and congressional trades in HDSN, on SentiSense.