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, Q1 2026
Institutional positions in Hudson Technologies Inc as of Mar 31, 2026. 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
- 160
- −3 vs. Q4 2025
- Shares held
- 33.0M
- +2.41M (+7.9%) vs. Q4 2025
- Total value
- $194.0M
- −$15.9M (−7.6%) vs. Q4 2025
- New holders
- 26
- 48 more added
- Sold out
- 29
- 58 more reduced
5 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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, Q1 2026
Shares, value and share of portfolio for each institution holding Hudson Technologies Inc; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Pinnacle Associates Ltd | 70,000 | $411.6K | 0.01% | 00.0% | Unchanged |
| Millennium Management LLC | 72,683 | $427.4K | 0.00% | −116,378−61.6% | Reduced |
| Quantinno Capital Management LP | 76,268 | $448.5K | 0.00% | −45,679−37.5% | Reduced |
| STRS Ohio | 77,100 | $453.3K | 0.00% | 00.0% | Unchanged |
| Invesco Ltd. | 78,786 | $463.3K | 0.00% | −18,322−18.9% | Reduced |
| Price T Rowe Associates Inc | 80,013 | $471.0K | 0.00% | +6,307+8.6% | Added |
| State of Wisconsin Investment Board | 80,690 | $474.5K | 0.00% | −19,074−19.1% | Reduced |
| Mackenzie Financial Corp | 82,339 | $484.2K | 0.00% | +82,339 | New |
| Nuveen, LLC | 83,715 | $492.2K | 0.00% | +575+0.7% | Added |
| CWM Advisors, LLC | 88,086 | $517.9K | 0.03% | +19,503+28.4% | Added |
| EdgeRock Capital LLC | 90,517 | $532.2K | 0.14% | 00.0% | Unchanged |
| Jump Financial, LLC | 90,600 | $532.7K | 0.01% | +90,600 | New |
| Charles Schwab Investment Management Inc | 101,977 | $599.6K | 0.00% | −13,339−11.6% | Reduced |
| Bank of America Corp | 102,335 | $601.7K | 0.00% | +18,931+22.7% | Added |
| Zazove Associates LLC | 100,000 | $636.5K | 0.03% | +50,000+100.0% | Added |
| JPMorgan Chase & Co | 117,539 | $672.3K | 0.00% | −10,032−7.9% | Reduced |
| Prudential Financial Inc | 121,740 | $715.8K | 0.00% | +51,770+74.0% | Added |
| KBC Group NV | 123,001 | $723.0K | 0.00% | 00.0% | Unchanged |
| Credit Agricole S A | 140,000 | $823.2K | 0.00% | 00.0% | Unchanged |
| Wedge Capital Management L L P | 144,736 | $851.0K | 0.02% | −8,628−5.6% | Reduced |
| First Trust Advisors LP | 145,083 | $853.1K | 0.00% | +3,105+2.2% | Added |
| Pacific Ridge Capital Partners, LLC | 146,930 | $863.9K | 0.19% | +28,524+24.1% | Added |
| Russell Investments Group, Ltd. | 154,393 | $907.8K | 0.00% | +15,706+11.3% | Added |
| Grimes & Company, Inc. | 158,618 | $932.7K | 0.03% | +117,455+285.3% | Added |
| O'Shaughnessy Asset Management, LLC | 170,825 | $1.00M | 0.01% | −10.0% | Reduced |
| Marathon Capital Management | 174,325 | $1.03M | 0.23% | −1,000−0.6% | Reduced |
| Numerai GP LLC | 177,292 | $1.04M | 0.10% | +177,292 | New |
| Jacobs Levy Equity Management, Inc | 178,933 | $1.05M | 0.00% | +19,205+12.0% | Added |
| Empowered Funds, LLC | 194,555 | $1.14M | 0.01% | +194,555 | New |
| Goldman Sachs Group Inc | 197,932 | $1.16M | 0.00% | +8,036+4.2% | Added |
| Kestrel Investment Management Corp | 200,750 | $1.18M | 0.70% | −1,000−0.5% | Reduced |
| Marshall Wace, LLP | 219,271 | $1.29M | 0.00% | −245,859−52.9% | Reduced |
| Vanguard Fiduciary Trust Co | 242,866 | $1.43M | 0.00% | +242,866 | New |
| Vanguard Portfolio Management LLC | 268,536 | $1.58M | 0.00% | +268,536 | New |
| Two Sigma Investments, LP | 272,925 | $1.60M | 0.00% | +137,525+101.6% | Added |
| Bank of New York Mellon Corp | 282,435 | $1.66M | 0.00% | −43,272−13.3% | Reduced |
| JB Capital Partners LP | 306,200 | $1.80M | 0.31% | 00.0% | Unchanged |
| 683 Capital Management, LLC | 325,000 | $1.91M | 0.18% | −10,000−3.0% | Reduced |
| Lazard Asset Management LLC | 325,915 | $1.92M | 0.00% | −105,854−24.5% | Reduced |
| AQR Capital Management LLC | 344,304 | $2.02M | 0.00% | +4,952+1.5% | Added |
| D. E. Shaw & Co., Inc. | 358,682 | $2.11M | 0.00% | −224,098−38.5% | Reduced |
| Qube Research & Technologies Ltd | 370,876 | $2.18M | 0.00% | +207,173+126.6% | Added |
| Northern Trust Corp | 399,363 | $2.35M | 0.00% | +7,474+1.9% | Added |
| Public Employees Retirement System of Ohio | 410,099 | $2.41M | 0.01% | 00.0% | Unchanged |
| Citadel Advisors LLC | 412,750 | $2.43M | 0.00% | +332,667+415.4% | Added |
| Morgan Stanley | 471,947 | $2.78M | 0.00% | −233,630−33.1% | Reduced |
| Bridgeway Capital Management, LLC | 498,109 | $2.93M | 0.06% | +119,854+31.7% | Added |
| Segall Bryant & Hamill, LLC | 628,341 | $3.69M | 0.05% | +447,987+248.4% | Added |
| Caspian Capital LP | 728,306 | $4.28M | 4.17% | 00.0% | Unchanged |
| Arrowstreet Capital, Limited Partnership | 881,235 | $5.18M | 0.00% | −101,584−10.3% | Reduced |
| State Street Corp | 897,873 | $5.28M | 0.00% | +3,809+0.4% | Added |
| Geode Capital Management, LLC | 948,546 | $5.58M | 0.00% | +5,392+0.6% | Added |
| New South Capital Management Inc | 1,241,223 | $7.30M | 0.35% | −42,305−3.3% | Reduced |
| American Century Companies Inc | 1,487,774 | $8.75M | 0.00% | +101,091+7.3% | Added |
| Renaissance Technologies LLC | 1,504,250 | $8.84M | 0.01% | −193,000−11.4% | Reduced |
| Vanguard Capital Management LLC | 1,660,146 | $9.76M | 0.00% | +1,660,146 | New |
| Dimensional Fund Advisors LP | 2,148,311 | $12.6M | 0.00% | +105,160+5.1% | Added |
| BlackRock, Inc. | 2,862,539 | $16.8M | 0.00% | −51,330−1.8% | Reduced |
| Westerly Capital Management, LLC | 3,175,000 | $18.7M | 5.75% | +625,000+24.5% | Added |
| Hartree Partners, LP | 3,800,000 | $22.3M | 4.84% | 00.0% | Unchanged |
| Los Angeles Capital Management LLC | 0 | $0 | 0.00% | −221,182−100.0% | Sold out |
| Acadian Asset Management LLC | 0 | $0 | 0.00% | −220,612−100.0% | Sold out |
| Two Sigma Advisers, LP | 0 | $0 | 0.00% | −167,300−100.0% | Sold out |
| Point72 Asset Management, L.P. | 0 | $0 | 0.00% | −113,263−100.0% | Sold out |
| Aviva PLC | 0 | $0 | 0.00% | −67,703−100.0% | Sold out |
| Trexquant Investment LP | 0 | $0 | 0.00% | −59,580−100.0% | Sold out |
| Principal Financial Group Inc | 0 | $0 | 0.00% | −59,073−100.0% | Sold out |
| Hillsdale Investment Management Inc. | 0 | $0 | 0.00% | −44,000−100.0% | Sold out |
| Algert Global LLC | 0 | $0 | 0.00% | −43,105−100.0% | Sold out |
| Seizert Capital Partners, LLC | 0 | $0 | 0.00% | −38,023−100.0% | Sold out |
| Martingale Asset Management L P | 0 | $0 | 0.00% | −31,238−100.0% | Sold out |
| Prelude Capital Management, LLC | 0 | $0 | 0.00% | −31,200−100.0% | Sold out |
| XTX Topco Ltd | 0 | $0 | 0.00% | −29,131−100.0% | Sold out |
| Aristides Capital LLC | 0 | $0 | 0.00% | −26,720−100.0% | Sold out |
| Integrated Advisors Network LLC | 0 | $0 | 0.00% | −25,281−100.0% | Sold out |
| Ieq Capital, LLC | 0 | $0 | 0.00% | −24,012−100.0% | Sold out |
| SG Americas Securities, LLC | 0 | $0 | 0.00% | −19,132−100.0% | Sold out |
| Legato Capital Management LLC | 0 | $0 | 0.00% | −18,479−100.0% | Sold out |
| Janney Montgomery Scott LLC | 0 | $0 | 0.00% | −18,022−100.0% | Sold out |
| Axq Capital, LP | 0 | $0 | 0.00% | −12,433−100.0% | Sold out |
| Kemnay Advisory Services Inc. | 0 | $0 | 0.00% | −9,124−100.0% | Sold out |
| Quest Partners LLC | 0 | $0 | 0.00% | −5,550−100.0% | Sold out |
| North Star Investment Management Corp. | 0 | $0 | 0.00% | −4,075−100.0% | Sold out |
| Meeder Asset Management Inc | 0 | $0 | 0.00% | −2,565−100.0% | Sold out |
| Amalgamated Bank | 0 | $0 | 0.00% | −1,209−100.0% | Sold out |
| C M Bidwell & Associates Ltd | 0 | $0 | 0.00% | −400−100.0% | Sold out |
| IFP Advisors, Inc | 0 | $0 | 0.00% | −23−100.0% | Sold out |
| Rothschild Investment LLC | 0 | $0 | 0.00% | −1−100.0% | Sold out |
| Bessemer Group Inc | 0 | $0 | 0.00% | −33−100.0% | Sold out |
| Vanguard Group Inc | – | – | – | – | Not filed |
| Comerica Bank | – | – | – | – | Not filed |
| Brandywine Global Investment Management, LLC | – | – | – | – | Not filed |
| Sherbrooke Park Advisers LLC | – | – | – | – | Not filed |
| Stephens Consulting, LLC | – | – | – | – | Not filed |