Canonical: https://ownershiptrace.com/13f/companies/431

# Who owns HUDSON TECHNOLOGIES INC /NY (HDS)? Elite investor 13F holders

3 tracked elite investors reported holding HUDSON TECHNOLOGIES INC /NY as of 2026-06-30, including Renaissance Technologies LLC, D.E. Shaw, Ancora Advisors / Ancora Holdings. Who bought, trimmed or exited each quarter, with links to the original SEC 13F filings.

3 tracked investors currently reported holding · Latest report period: 2026-06-30 · Industrials · Capital Goods

Hudson Technologies, Inc., through its subsidiary, Hudson Technologies Company, provides solutions to recurring problems within the refrigeration industry in the United States. The company offers refrigerant and industrial gas; refrigerant management services comprising primarily of reclamation of refrigerants, laboratory testing through its laboratory, and banking storage services; and…

## Reported holders and securities, including exits (up to 20)

| Investor | Security | Instrument | Report period | Filed | Value | Quantity | Units | Change | Source |
|  --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| [Renaissance Technologies LLC](https://ownershiptrace.com/13f/investors/63) | HUDSON TECHNOLOGIES INC | SHARE | 2026-06-30 | 2026-08-13 00:00:00 | 8277740.00 USD | 1442115.000000 | Shares | reduce | [Original filing](https://www.sec.gov/Archives/edgar/data/1037389/0001037389-26-000059-index.html) |
| [D.E. Shaw](https://ownershiptrace.com/13f/investors/98) | HUDSON TECHNOLOGIES INC | SHARE | 2026-06-30 | 2026-08-14 00:00:00 | 2351052.00 USD | 409591.000000 | Shares | add | [Original filing](https://www.sec.gov/Archives/edgar/data/1009207/0001104659-26-097217-index.html) |
| [Ancora Advisors / Ancora Holdings](https://ownershiptrace.com/13f/investors/101) | HUDSON TECHNOLOGIES INC | SHARE | 2026-06-30 | 2026-08-14 00:00:00 | 1741401.00 USD | 303380.000000 | Shares | buy | [Original filing](https://www.sec.gov/Archives/edgar/data/1446114/0001446114-26-000012-index.html) |
| [Tudor Investment](https://ownershiptrace.com/13f/investors/94675) | HUDSON TECHNOLOGIES INC | SHARE | 2026-06-30 | 2026-08-14 00:00:00 | 0.00 USD | 0.000000 | Shares | exited | [Original filing](https://www.sec.gov/Archives/edgar/data/923093/0000902664-26-003485-index.html) |

Public disclosures can be delayed, incomplete, or amended. Report period describes a position date; transaction date describes a reported transaction; filed describes submission. A recent filing or page update does not establish a current holding. A dash means unavailable or not comparable, not zero.

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