Hudson TechnologiesHDSN
13F holders, Q2 2026 (June 30)151holders −9
24new positions
30sold out
5famous investors
$5.74avg. 13F price*
At the end of Q2 2026, 151 institutions reported holding Hudson Technologies Inc. (HDSN) in their 13F filings, down 9 from Q1 2026. 24 opened new positions and 30 sold out. The largest holders were Hartree Partners, LP ($25.3M), Westerly Capital Management, LLC ($19.4M) and BlackRock, Inc. ($16.3M). 5 famous investors held it, including Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio), Ken Griffin (0.0% of Citadel Advisors's portfolio) and David E. Shaw (0.0% of D. E. Shaw & Co.'s portfolio).
- Company
- Hudson Technologies Inc.
- CUSIP
- 444144109
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2026 → Q2 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 24 | $4.4M |
| Exits | 30 | $19.5M |
All 13F filers, Q1 2026 → Q2 2026: 4,076,629 shares bought and 5,370,540 shares sold, net −1,293,911 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 151 holders
| Hartree Partners, LP | 5.45% | Add +16.1% | 4,411,889 | $25.3M |
| Westerly Capital Management, LLC | 3.58% | Add +6.5% | 3,380,000 | $19.4M |
| BlackRock, Inc. | 0.00% | Reduce -0.8% | 2,840,272 | $16.3M |
| Dimensional Fund Advisors LP | 0.00% | Reduce -8.4% | 1,967,914 | $11.3M |
| Vanguard Capital Management LLC | 0.00% | Reduce -0.3% | 1,654,259 | $9.5M |
| Renaissance Technologies | 0.01% | Reduce -4.1% | 1,442,115 | $8.3M |
| American Century Companies Inc. | 0.00% | Reduce -21.4% | 1,169,462 | $6.7M |
| Geode Capital Management, LLC | 0.00% | Add +4.9% | 995,011 | $5.7M |
| State Street Corp. | 0.00% | Reduce -0.2% | 895,776 | $5.1M |
| Arrowstreet Capital, Limited Partnership | 0.00% | Reduce -11.7% | 777,989 | $4.5M |
| Caspian Capital LP | 2.37% | No change | 728,306 | $4.2M |
| Qube Research & Technologies Ltd | 0.00% | Add +94.6% | 721,847 | $4.1M |
| Citadel Advisors | 0.00% | Add +39.1% | 574,266 | $3.3M |
| Jacobs Levy Equity Management, Inc. | 0.01% | Add +183.1% | 506,591 | $2.9M |
| Bridgeway Capital Management, LLC | 0.05% | Reduce -0.7% | 494,432 | $2.8M |
| Nuveen, LLC | 0.00% | Add +469.2% | 476,540 | $2.7M |
| Marshall Wace, LLP | 0.00% | Add +116.3% | 474,354 | $2.7M |
| D. E. Shaw & Co. | 0.00% | Add +14.2% | 409,591 | $2.4M |
| Morgan Stanley | 0.00% | Reduce -22.2% | 367,159 | $2.1M |
| Russell Investments Group, Ltd. | 0.00% | Add +134.8% | 362,489 | $2.1M |
| 683 Capital Management, LLC | 0.18% | No change | 325,000 | $1.9M |
| JB Capital Partners LP | 0.27% | No change | 306,200 | $1.8M |
| Ancora Advisors LLC | 0.03% | New | 303,380 | $1.7M |
| Kerrisdale Advisers, LLC | 0.43% | Add +420.6% | 299,976 | $1.7M |
| Vanguard Portfolio Management LLC | 0.00% | Add +8.2% | 290,537 | $1.7M |
| Northern Trust Corp. | 0.00% | Reduce -29.4% | 282,011 | $1.6M |
| Vanguard Fiduciary Trust Co. | 0.00% | Add +0.9% | 245,071 | $1.4M |
| KBC Group NV | 0.00% | Add +68.7% | 207,466 | $1.2M |
| Empowered Funds, LLC | 0.01% | Add +5.8% | 205,878 | $1.2M |
| Bank of New York Mellon Corp | 0.00% | Reduce -27.5% | 204,779 | $1.2M |
| Kestrel Investment Management Corp. | 0.63% | No change | 200,750 | $1.2M |
| Goldman Sachs Group Inc. | 0.00% | Reduce -10.7% | 176,708 | $1.0M |
| Pacific Ridge Capital Partners, LLC | 0.18% | Add +18.8% | 174,539 | $1.0M |
| Marathon Capital Management | 0.20% | Reduce -0.6% | 173,325 | $995K |
| AQR Capital Management | 0.00% | Reduce -53.0% | 161,903 | $929K |
| First Trust Advisors LP | 0.00% | Add +4.6% | 151,809 | $871K |
| Numerai GP LLC | 0.07% | Reduce -15.3% | 150,254 | $862K |
| Credit Agricole S A | 0.00% | No change | 140,000 | $804K |
| Wedge Capital Management L L P | 0.01% | Reduce -4.9% | 137,618 | $790K |
| Two Sigma Investments, LP | 0.00% | Reduce -51.6% | 131,960 | $757K |
| Prudential Financial Inc. | 0.00% | No change | 121,740 | $699K |
| Inspire Investing, LLC | 0.03% | Add +35.3% | 119,191 | $684K |
| Charles Schwab Investment Management Inc. | 0.00% | Add +6.9% | 109,013 | $626K |
| Quantinno Capital Management LP | 0.00% | Add +40.3% | 106,964 | $614K |
| Ameriprise Financial Inc. | 0.00% | Add +72.4% | 98,394 | $565K |
| T. Rowe Price Associates Inc. | 0.00% | Add +19.9% | 95,960 | $551K |
| JPMorgan Chase & Co. | 0.00% | Reduce -20.3% | 93,739 | $514K |
| Invesco Ltd. | 0.00% | Reduce -11.1% | 70,075 | $402K |
| Pinnacle Associates Ltd. | 0.00% | No change | 70,000 | $402K |
| Squarepoint Ops LLC | 0.00% | Add +154.5% | 66,220 | $380K |
| Deutsche Bank AG | 0.00% | Add +4.9% | 61,117 | $351K |
| UBS Group AG | 0.00% | Add +37.4% | 58,368 | $335K |
| Bank of America Corp. | 0.00% | Reduce -43.4% | 57,906 | $332K |
| Isthmus Partners, LLC | 0.03% | Add +32.4% | 57,456 | $330K |
| Bailard, Inc. | 0.01% | New | 56,574 | $325K |
| Inspire Advisors, LLC | 0.02% | Add +49.0% | 54,249 | $311K |
| Public Employees Retirement System of Ohio | 0.00% | Reduce -87.4% | 51,499 | $296K |
| Odyssean, LLC | 0.05% | New | 50,673 | $291K |
| Rhumbline Advisers | 0.00% | Add +0.3% | 50,040 | $287K |
| Schonfeld Strategic Advisors LLC | 0.00% | Add +15.9% | 49,528 | $284K |
| Alliancebernstein L.P. | 0.00% | Add +10.7% | 46,710 | $275K |
| Sanctuary Advisors, LLC | 0.00% | New | 46,344 | $266K |
| Exchange Traded Concepts, LLC | 0.00% | Add +16.7% | 46,108 | $265K |
| Point72 Asset Management | 0.00% | New | 45,731 | $262K |
| Susquehanna International Group, LLP | 0.00% | Add +32.0% | 45,095 | $259K |
| Commonwealth Equity Services, LLC | 0.00% | Add +10.0% | 42,504 | $244K |
| Canada Pension Plan Investment Board | 0.00% | Reduce -11.5% | 42,500 | $244K |
| EntryPoint Capital, LLC | 0.05% | New | 33,461 | $192K |
| Campbell & CO Investment Adviser LLC | 0.01% | Reduce -46.3% | 32,995 | $189K |
| Wells Fargo & Company | 0.00% | Add +106.1% | 32,878 | $189K |
| Atlantic Union Bankshares Corp | 0.00% | No change | 31,250 | $179K |
| Vident Advisory, LLC | 0.00% | No change | 30,875 | $177K |
| Raymond James Financial Inc. | 0.00% | Reduce -28.9% | 30,375 | $174K |
| State of Wisconsin Investment Board | 0.00% | Reduce -63.4% | 29,550 | $170K |
| Jump Financial, LLC | 0.00% | Reduce -69.2% | 27,943 | $160K |
| Park Capital Management, LLC / WI | 0.09% | New | 27,078 | $155K |
| Graham Capital Management, L.P. | 0.01% | Reduce -25.8% | 26,736 | $153K |
| Fifth Third Bancorp | 0.00% | Reduce -19.1% | 24,585 | $141K |
| MetLife Investment Management, LLC | 0.00% | Add +164.1% | 22,591 | $130K |
| XTX Topco Ltd | 0.00% | New | 21,149 | $121K |
| Citigroup Inc. | 0.00% | Add +956.7% | 18,883 | $108K |
| Connor, Clark & Lunn Investment Management Ltd. | 0.00% | New | 18,546 | $106K |
| Boston Partners | 0.00% | Reduce -54.4% | 18,221 | $105K |
| Symmetry Partners, LLC | 0.01% | New | 18,033 | $104K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Reduce -6.0% | 17,193 | $99K |
| Empirical Asset Management, LLC | 0.02% | New | 17,059 | $98K |
| Wealth Enhancement Advisory Services, LLC | 0.00% | Reduce -5.4% | 15,133 | $98K |
| EP Wealth Advisors, LLC | 0.00% | Reduce -19.5% | 16,875 | $97K |
| Osaic Holdings, Inc. | 0.00% | Reduce -11.8% | 16,809 | $96K |
| Commonwealth Financial Services, LLC | 0.01% | New | 16,728 | $96K |
| Fifth Third Wealth Advisors LLC | 0.00% | New | 16,445 | $94K |
| Quadrature Capital Ltd | 0.00% | Reduce -20.8% | 16,395 | $94K |
| Mercer Global Advisors Inc. | 0.00% | New | 15,081 | $87K |
| Vanguard Global Advisers, LLC | 0.00% | No change | 14,929 | $86K |
| HUB Investment Partners, LLC | 0.00% | New | 14,918 | $86K |
| Inscription Capital, LLC | 0.01% | New | 14,032 | $81K |
| State of Wyoming | 0.01% | Reduce -53.6% | 13,503 | $78K |
| Brown Brothers Harriman & Co. | 0.00% | No change | 13,263 | $76K |
| Anchyra Partners LLC | 0.02% | New | 13,063 | $75K |
| FMR LLC | 0.00% | Reduce -19.6% | 13,023 | $75K |
"% of holder's portfolio" is HDSN's weight in each manager's 13F, not the share of Hudson Technologies Inc. the manager owns.