Hudson Technologies Inc
HDSN- Exchange
- Nasdaq
- Industry
- Wholesale-Machinery, Equipment & Supplies
- SEC CIK
- 0000925528
In the last 90 days, Hudson Technologies Inc insiders filed 9 open-market purchases and 0 sales; 151 institutions reported holding it in 13F filings for Q2 2026, worth $181.4M in total; no superinvestor holds it.
13F holders, Q4 2025
Institutional positions in Hudson Technologies Inc as of Dec 31, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 168
- +1 vs. Q3 2025
- Shares held
- 33.0M
- −79.3K (−0.2%) vs. Q3 2025
- Total value
- $226.4M
- −$101.8M (−31.0%) vs. Q3 2025
- New holders
- 26
- 43 more added
- Sold out
- 25
- 68 more reduced
3 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting HDSN on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 151 | $181.4M |
| Q1 2026 | 160 | $194.0M |
| Q4 2025 | 168 | $226.4M |
| Q3 2025 | 170 | $330.3M |
| Q2 2025 | 149 | $270.7M |
| Q1 2025 | 162 | $194.9M |
| Q4 2024 | 168 | $169.6M |
| Q3 2024 | 172 | $257.8M |
| Q2 2024 | 161 | $279.3M |
| Q1 2024 | 168 | $346.3M |
| Q4 2023 | 145 | $417.5M |
| Q3 2023 | 143 | $394.0M |
| Q2 2023 | 132 | $278.1M |
| Q1 2023 | 139 | $244.0M |
| Q4 2022 | 143 | $283.6M |
| Q3 2022 | 133 | $209.8M |
| Q2 2022 | 112 | $216.3M |
| Q1 2022 | 78 | $157.5M |
| Q4 2021 | 65 | $99.1M |
| Q3 2021 | 61 | $65.6M |
| Q2 2021 | 53 | $57.2M |
| Q1 2021 | 37 | $24.2M |
Institutions, Q4 2025
Shares, value and share of portfolio for each institution holding Hudson Technologies Inc; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Hartree Partners, LP | 3,800,000 | $26.0M | 9.51% | 00.0% | Unchanged |
| BlackRock, Inc. | 2,913,869 | $20.0M | 0.00% | +50,596+1.8% | Added |
| Westerly Capital Management, LLC | 2,550,000 | $17.5M | 5.25% | +660,000+34.9% | Added |
| Vanguard Group Inc | 2,338,710 | $16.0M | 0.00% | −34,471−1.5% | Reduced |
| Dimensional Fund Advisors LP | 2,043,151 | $14.0M | 0.00% | +33,670+1.7% | Added |
| Renaissance Technologies LLC | 1,697,250 | $11.6M | 0.02% | −99,600−5.5% | Reduced |
| American Century Companies Inc | 1,386,683 | $9.50M | 0.00% | +112,793+8.9% | Added |
| New South Capital Management Inc | 1,283,528 | $8.79M | 0.40% | −50,809−3.8% | Reduced |
| Arrowstreet Capital, Limited Partnership | 982,819 | $6.73M | 0.00% | −128,984−11.6% | Reduced |
| Geode Capital Management, LLC | 943,154 | $6.46M | 0.00% | −11,272−1.2% | Reduced |
| State Street Corp | 894,064 | $6.12M | 0.00% | +2090.0% | Added |
| Caspian Capital LP | 728,306 | $4.99M | 3.30% | +728,306 | New |
| Morgan Stanley | 705,577 | $4.83M | 0.00% | −87,150−11.0% | Reduced |
| D. E. Shaw & Co., Inc. | 582,780 | $3.99M | 0.00% | −239,029−29.1% | Reduced |
| Marshall Wace, LLP | 465,130 | $3.19M | 0.00% | +339,543+270.4% | Added |
| Lazard Asset Management LLC | 431,769 | $2.96M | 0.01% | +170,964+65.6% | Added |
| Public Employees Retirement System of Ohio | 410,099 | $2.81M | 0.01% | 00.0% | Unchanged |
| Northern Trust Corp | 391,889 | $2.68M | 0.00% | −24,618−5.9% | Reduced |
| Bridgeway Capital Management, LLC | 378,255 | $2.59M | 0.05% | +17,607+4.9% | Added |
| AQR Capital Management LLC | 339,352 | $2.32M | 0.00% | −5,932−1.7% | Reduced |
| 683 Capital Management, LLC | 335,000 | $2.29M | 0.19% | −15,000−4.3% | Reduced |
| Bank of New York Mellon Corp | 325,707 | $2.23M | 0.00% | −12,683−3.7% | Reduced |
| JB Capital Partners LP | 306,200 | $2.10M | 0.36% | 00.0% | Unchanged |
| Los Angeles Capital Management LLC | 221,182 | $2.03M | 0.01% | −10,010−4.3% | Reduced |
| Acadian Asset Management LLC | 220,612 | $1.51M | 0.00% | +8,667+4.1% | Added |
| Kestrel Investment Management Corp | 201,750 | $1.38M | 0.78% | −7,100−3.4% | Reduced |
| Goldman Sachs Group Inc | 189,896 | $1.30M | 0.00% | +25,436+15.5% | Added |
| Millennium Management LLC | 189,061 | $1.30M | 0.00% | −166,897−46.9% | Reduced |
| Segall Bryant & Hamill, LLC | 180,354 | $1.24M | 0.02% | +180,354 | New |
| Marathon Capital Management | 175,325 | $1.20M | 0.26% | −19,125−9.8% | Reduced |
| O'Shaughnessy Asset Management, LLC | 170,826 | $1.17M | 0.01% | −5,062−2.9% | Reduced |
| Two Sigma Advisers, LP | 167,300 | $1.15M | 0.00% | −60,400−26.5% | Reduced |
| Qube Research & Technologies Ltd | 163,703 | $1.12M | 0.00% | +75,007+84.6% | Added |
| Jacobs Levy Equity Management, Inc | 159,728 | $1.09M | 0.00% | −63,217−28.4% | Reduced |
| Wedge Capital Management L L P | 153,364 | $1.05M | 0.02% | −1,704−1.1% | Reduced |
| First Trust Advisors LP | 141,978 | $972.5K | 0.00% | +4,171+3.0% | Added |
| Credit Agricole S A | 140,000 | $959.0K | 0.00% | +140,000 | New |
| Russell Investments Group, Ltd. | 138,687 | $950.0K | 0.00% | −10,972−7.3% | Reduced |
| UBS Group AG | 136,088 | $932.2K | 0.00% | +2,268+1.7% | Added |
| Two Sigma Investments, LP | 135,400 | $927.5K | 0.00% | −54,821−28.8% | Reduced |
| JPMorgan Chase & Co | 127,571 | $873.9K | 0.00% | −15,327−10.7% | Reduced |
| KBC Group NV | 123,001 | $843.0K | 0.00% | +123,001 | New |
| Quantinno Capital Management LP | 121,947 | $835.3K | 0.00% | +66,612+120.4% | Added |
| Pacific Ridge Capital Partners, LLC | 118,406 | $811.1K | 0.18% | +14,826+14.3% | Added |
| Charles Schwab Investment Management Inc | 115,316 | $789.9K | 0.00% | +424+0.4% | Added |
| Point72 Asset Management, L.P. | 113,263 | $775.9K | 0.00% | +108,963+2,534.0% | Added |
| State of Wisconsin Investment Board | 99,764 | $683.4K | 0.00% | +26,937+37.0% | Added |
| Invesco Ltd. | 97,108 | $665.2K | 0.00% | +18,324+23.3% | Added |
| Jane Street Group, LLC | 91,216 | $624.8K | 0.00% | −51,305−36.0% | Reduced |
| EdgeRock Capital LLC | 90,517 | $620.0K | 0.16% | +5,220+6.1% | Added |
| Bank of America Corp | 83,404 | $571.3K | 0.00% | −195,768−70.1% | Reduced |
| Nuveen, LLC | 83,140 | $569.5K | 0.00% | 00.0% | Unchanged |
| Citadel Advisors LLC | 80,083 | $548.6K | 0.00% | −34,303−30.0% | Reduced |
| Franklin Resources Inc | 77,522 | $531.0K | 0.00% | −27,539−26.2% | Reduced |
| STRS Ohio | 77,100 | $528.1K | 0.00% | +17,500+29.4% | Added |
| Price T Rowe Associates Inc | 73,706 | $505.0K | 0.00% | 00.0% | Unchanged |
| Ameriprise Financial Inc | 71,167 | $487.5K | 0.00% | +2,292+3.3% | Added |
| Pinnacle Associates Ltd | 70,000 | $479.5K | 0.01% | 00.0% | Unchanged |
| Prudential Financial Inc | 69,970 | $479.3K | 0.00% | +69,970 | New |
| CWM Advisors, LLC | 68,583 | $469.8K | 0.04% | +22,160+47.7% | Added |
| Barclays PLC | 67,991 | $465.7K | 0.00% | +7,443+12.3% | Added |
| Aviva PLC | 67,703 | $463.8K | 0.00% | +20,178+42.5% | Added |
| Voya Investment Management LLC | 61,273 | $419.7K | 0.00% | +1,066+1.8% | Added |
| Trexquant Investment LP | 59,580 | $408.1K | 0.00% | −151,325−71.8% | Reduced |
| Principal Financial Group Inc | 59,073 | $404.6K | 0.00% | +18,240+44.7% | Added |
| Kerrisdale Advisers, LLC | 57,622 | $394.7K | 0.19% | −6,478−10.1% | Reduced |
| Deutsche Bank AG | 53,225 | $364.6K | 0.00% | −9,274−14.8% | Reduced |
| Campbell & CO Investment Adviser LLC | 52,762 | $361.4K | 0.02% | +3,544+7.2% | Added |
| Canada Pension Plan Investment Board | 51,500 | $352.8K | 0.00% | +51,500 | New |
| Rhumbline Advisers | 51,307 | $351.4K | 0.00% | −10,102−16.5% | Reduced |
| Zazove Associates LLC | 50,000 | $342.5K | 0.03% | 00.0% | Unchanged |
| State of Wyoming | 48,062 | $329.2K | 0.04% | +8,015+20.0% | Added |
| Isthmus Partners, LLC | 47,664 | $326.5K | 0.04% | −852−1.8% | Reduced |
| Hillsdale Investment Management Inc. | 44,000 | $301.4K | 0.01% | +13,000+41.9% | Added |
| Wells Fargo & Company | 43,900 | $300.7K | 0.00% | +14,392+48.8% | Added |
| Algert Global LLC | 43,105 | $295.3K | 0.00% | +19,340+81.4% | Added |
| Alliancebernstein L.P. | 42,210 | $289.1K | 0.00% | 00.0% | Unchanged |
| Grimes & Company, Inc. | 41,163 | $282.0K | 0.01% | 00.0% | Unchanged |
| Susquehanna International Group, LLP | 40,968 | $280.6K | 0.00% | +40,968 | New |
| Raymond James Financial Inc | 39,609 | $271.3K | 0.00% | −2,330−5.6% | Reduced |
| Commonwealth Equity Services, LLC | 38,650 | $264.8K | 0.00% | −1,868−4.6% | Reduced |
| Seizert Capital Partners, LLC | 38,023 | $260.5K | 0.01% | 00.0% | Unchanged |
| Graham Capital Management, L.P. | 36,985 | $253.3K | 0.01% | +3,256+9.7% | Added |
| Sterling Capital Management LLC | 36,978 | $253.3K | 0.00% | −437−1.2% | Reduced |
| Exchange Traded Concepts, LLC | 35,366 | $242.3K | 0.00% | +7,376+26.4% | Added |
| Squarepoint Ops LLC | 34,137 | $233.8K | 0.00% | +34,137 | New |
| Winton Group Ltd | 33,098 | $226.7K | 0.01% | −31,388−48.7% | Reduced |
| Comerica Bank | 31,614 | $216.6K | 0.00% | 00.0% | Unchanged |
| Martingale Asset Management L P | 31,238 | $214.0K | 0.01% | −307−1.0% | Reduced |
| Prelude Capital Management, LLC | 31,200 | $213.7K | 0.02% | +31,200 | New |
| Tudor Investment Corp Et Al | 29,237 | $200.3K | 0.00% | −178,012−85.9% | Reduced |
| XTX Topco Ltd | 29,131 | $199.5K | 0.01% | +14,898+104.7% | Added |
| Thrivent Financial for Lutherans | 27,278 | $187.0K | 0.00% | 00.0% | Unchanged |
| Aristides Capital LLC | 26,720 | $183.0K | 0.06% | −2,157−7.5% | Reduced |
| Integrated Advisors Network LLC | 25,281 | $173.2K | 0.01% | −3,825−13.1% | Reduced |
| Ieq Capital, LLC | 24,012 | $164.5K | 0.00% | −6,771−22.0% | Reduced |
| Advisor Group Holdings, Inc. | 22,882 | $156.7K | 0.00% | −3,350−12.8% | Reduced |
| Brandywine Global Investment Management, LLC | 22,600 | $154.8K | 0.00% | +22,600 | New |
| Boston Partners | 21,256 | $145.6K | 0.00% | −2,620−11.0% | Reduced |
| EP Wealth Advisors, LLC | 20,417 | $139.9K | 0.00% | +20,417 | New |