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 |
|---|---|---|---|---|---|
| Hartree Partners, LP | 3,800,000 | $22.3M | 4.84% | 00.0% | Unchanged |
| Westerly Capital Management, LLC | 3,175,000 | $18.7M | 5.75% | +625,000+24.5% | Added |
| BlackRock, Inc. | 2,862,539 | $16.8M | 0.00% | −51,330−1.8% | Reduced |
| Dimensional Fund Advisors LP | 2,148,311 | $12.6M | 0.00% | +105,160+5.1% | Added |
| Vanguard Capital Management LLC | 1,660,146 | $9.76M | 0.00% | +1,660,146 | New |
| Renaissance Technologies LLC | 1,504,250 | $8.84M | 0.01% | −193,000−11.4% | Reduced |
| American Century Companies Inc | 1,487,774 | $8.75M | 0.00% | +101,091+7.3% | Added |
| New South Capital Management Inc | 1,241,223 | $7.30M | 0.35% | −42,305−3.3% | Reduced |
| Geode Capital Management, LLC | 948,546 | $5.58M | 0.00% | +5,392+0.6% | Added |
| State Street Corp | 897,873 | $5.28M | 0.00% | +3,809+0.4% | Added |
| Arrowstreet Capital, Limited Partnership | 881,235 | $5.18M | 0.00% | −101,584−10.3% | Reduced |
| Caspian Capital LP | 728,306 | $4.28M | 4.17% | 00.0% | Unchanged |
| Segall Bryant & Hamill, LLC | 628,341 | $3.69M | 0.05% | +447,987+248.4% | Added |
| Bridgeway Capital Management, LLC | 498,109 | $2.93M | 0.06% | +119,854+31.7% | Added |
| Morgan Stanley | 471,947 | $2.78M | 0.00% | −233,630−33.1% | Reduced |
| Citadel Advisors LLC | 412,750 | $2.43M | 0.00% | +332,667+415.4% | Added |
| Public Employees Retirement System of Ohio | 410,099 | $2.41M | 0.01% | 00.0% | Unchanged |
| Northern Trust Corp | 399,363 | $2.35M | 0.00% | +7,474+1.9% | Added |
| Qube Research & Technologies Ltd | 370,876 | $2.18M | 0.00% | +207,173+126.6% | Added |
| D. E. Shaw & Co., Inc. | 358,682 | $2.11M | 0.00% | −224,098−38.5% | Reduced |
| AQR Capital Management LLC | 344,304 | $2.02M | 0.00% | +4,952+1.5% | Added |
| Lazard Asset Management LLC | 325,915 | $1.92M | 0.00% | −105,854−24.5% | Reduced |
| 683 Capital Management, LLC | 325,000 | $1.91M | 0.18% | −10,000−3.0% | Reduced |
| JB Capital Partners LP | 306,200 | $1.80M | 0.31% | 00.0% | Unchanged |
| Bank of New York Mellon Corp | 282,435 | $1.66M | 0.00% | −43,272−13.3% | Reduced |
| Two Sigma Investments, LP | 272,925 | $1.60M | 0.00% | +137,525+101.6% | Added |
| Vanguard Portfolio Management LLC | 268,536 | $1.58M | 0.00% | +268,536 | New |
| Vanguard Fiduciary Trust Co | 242,866 | $1.43M | 0.00% | +242,866 | New |
| Marshall Wace, LLP | 219,271 | $1.29M | 0.00% | −245,859−52.9% | Reduced |
| Kestrel Investment Management Corp | 200,750 | $1.18M | 0.70% | −1,000−0.5% | Reduced |
| Goldman Sachs Group Inc | 197,932 | $1.16M | 0.00% | +8,036+4.2% | Added |
| Empowered Funds, LLC | 194,555 | $1.14M | 0.01% | +194,555 | New |
| Jacobs Levy Equity Management, Inc | 178,933 | $1.05M | 0.00% | +19,205+12.0% | Added |
| Numerai GP LLC | 177,292 | $1.04M | 0.10% | +177,292 | New |
| Marathon Capital Management | 174,325 | $1.03M | 0.23% | −1,000−0.6% | Reduced |
| O'Shaughnessy Asset Management, LLC | 170,825 | $1.00M | 0.01% | −10.0% | Reduced |
| Grimes & Company, Inc. | 158,618 | $932.7K | 0.03% | +117,455+285.3% | Added |
| Russell Investments Group, Ltd. | 154,393 | $907.8K | 0.00% | +15,706+11.3% | Added |
| Pacific Ridge Capital Partners, LLC | 146,930 | $863.9K | 0.19% | +28,524+24.1% | Added |
| First Trust Advisors LP | 145,083 | $853.1K | 0.00% | +3,105+2.2% | Added |
| Wedge Capital Management L L P | 144,736 | $851.0K | 0.02% | −8,628−5.6% | Reduced |
| Credit Agricole S A | 140,000 | $823.2K | 0.00% | 00.0% | Unchanged |
| KBC Group NV | 123,001 | $723.0K | 0.00% | 00.0% | Unchanged |
| Prudential Financial Inc | 121,740 | $715.8K | 0.00% | +51,770+74.0% | Added |
| JPMorgan Chase & Co | 117,539 | $672.3K | 0.00% | −10,032−7.9% | Reduced |
| Zazove Associates LLC | 100,000 | $636.5K | 0.03% | +50,000+100.0% | Added |
| Bank of America Corp | 102,335 | $601.7K | 0.00% | +18,931+22.7% | Added |
| Charles Schwab Investment Management Inc | 101,977 | $599.6K | 0.00% | −13,339−11.6% | Reduced |
| Jump Financial, LLC | 90,600 | $532.7K | 0.01% | +90,600 | New |
| EdgeRock Capital LLC | 90,517 | $532.2K | 0.14% | 00.0% | Unchanged |
| CWM Advisors, LLC | 88,086 | $517.9K | 0.03% | +19,503+28.4% | Added |
| Nuveen, LLC | 83,715 | $492.2K | 0.00% | +575+0.7% | Added |
| Mackenzie Financial Corp | 82,339 | $484.2K | 0.00% | +82,339 | New |
| State of Wisconsin Investment Board | 80,690 | $474.5K | 0.00% | −19,074−19.1% | Reduced |
| Price T Rowe Associates Inc | 80,013 | $471.0K | 0.00% | +6,307+8.6% | Added |
| Invesco Ltd. | 78,786 | $463.3K | 0.00% | −18,322−18.9% | Reduced |
| STRS Ohio | 77,100 | $453.3K | 0.00% | 00.0% | Unchanged |
| Quantinno Capital Management LP | 76,268 | $448.5K | 0.00% | −45,679−37.5% | Reduced |
| Millennium Management LLC | 72,683 | $427.4K | 0.00% | −116,378−61.6% | Reduced |
| Pinnacle Associates Ltd | 70,000 | $411.6K | 0.01% | 00.0% | Unchanged |
| Jane Street Group, LLC | 69,854 | $410.7K | 0.00% | −21,362−23.4% | Reduced |
| Campbell & CO Investment Adviser LLC | 61,443 | $361.3K | 0.02% | +8,681+16.5% | Added |
| Voya Investment Management LLC | 60,855 | $357.8K | 0.00% | −418−0.7% | Reduced |
| Winton Group Ltd | 58,528 | $344.1K | 0.01% | +25,430+76.8% | Added |
| Deutsche Bank AG | 58,277 | $342.7K | 0.00% | +5,052+9.5% | Added |
| Kerrisdale Advisers, LLC | 57,622 | $338.8K | 0.13% | 00.0% | Unchanged |
| Ameriprise Financial Inc | 57,087 | $335.7K | 0.00% | −14,080−19.8% | Reduced |
| Rhumbline Advisers | 49,899 | $293.4K | 0.00% | −1,408−2.7% | Reduced |
| Alliancebernstein L.P. | 42,210 | $289.1K | 0.00% | 00.0% | Unchanged |
| Canada Pension Plan Investment Board | 48,000 | $282.2K | 0.00% | −3,500−6.8% | Reduced |
| Isthmus Partners, LLC | 43,397 | $255.2K | 0.03% | −4,267−9.0% | Reduced |
| Schonfeld Strategic Advisors LLC | 42,716 | $251.2K | 0.00% | +42,716 | New |
| Raymond James Financial Inc | 42,699 | $251.1K | 0.00% | +3,090+7.8% | Added |
| UBS Group AG | 42,475 | $249.8K | 0.00% | −93,613−68.8% | Reduced |
| Boston Partners | 39,994 | $235.2K | 0.00% | +18,738+88.2% | Added |
| Exchange Traded Concepts, LLC | 39,507 | $232.3K | 0.00% | +4,141+11.7% | Added |
| Commonwealth Equity Services, LLC | 38,647 | $227.2K | 0.00% | −30.0% | Reduced |
| Fox Run Management, L.L.C. | 39,373 | $225.2K | 0.04% | +39,373 | New |
| Inspire Advisors, LLC | 36,406 | $214.1K | 0.02% | +21,710+147.7% | Added |
| Graham Capital Management, L.P. | 36,033 | $211.9K | 0.01% | −952−2.6% | Reduced |
| Susquehanna International Group, LLP | 34,154 | $200.8K | 0.00% | −6,814−16.6% | Reduced |
| Atlantic Union Bankshares Corp | 31,250 | $183.8K | 0.00% | +31,250 | New |
| ExodusPoint Capital Management, LP | 31,125 | $183.0K | 0.00% | +31,125 | New |
| Vident Advisory, LLC | 30,875 | $181.5K | 0.00% | +30,875 | New |
| Fifth Third Bancorp | 30,396 | $178.7K | 0.00% | +30,396 | New |
| State of Wyoming | 29,097 | $171.1K | 0.02% | −18,965−39.5% | Reduced |
| Squarepoint Ops LLC | 26,018 | $153.0K | 0.00% | −8,119−23.8% | Reduced |
| Mirabella Financial Services LLP | 24,735 | $145.4K | 0.01% | +24,735 | New |
| Franklin Resources Inc | 22,600 | $132.9K | 0.00% | −54,922−70.8% | Reduced |
| EP Wealth Advisors, LLC | 20,974 | $123.3K | 0.00% | +557+2.7% | Added |
| Quadrature Capital Ltd | 20,699 | $121.7K | 0.00% | +20,699 | New |
| Advisor Group Holdings, Inc. | 19,062 | $112.1K | 0.00% | −3,820−16.7% | Reduced |
| Mirae Asset Global ETFs Holdings Ltd. | 18,301 | $107.6K | 0.00% | +442+2.5% | Added |
| Skopos Labs, Inc. | 16,485 | $96.9K | 0.00% | +16,485 | New |
| FMR LLC | 16,196 | $95.2K | 0.00% | +9,783+152.5% | Added |
| Wells Fargo & Company | 15,955 | $93.8K | 0.00% | −27,945−63.7% | Reduced |
| Wealth Enhancement Advisory Services, LLC | 15,990 | $93.4K | 0.00% | +3,536+28.4% | Added |
| Aquatic Capital Management LLC | 14,935 | $87.8K | 0.00% | +14,935 | New |
| Vanguard Global Advisers, LLC | 14,929 | $87.8K | 0.00% | +14,929 | New |
| Tudor Investment Corp Et Al | 14,790 | $87.0K | 0.00% | −14,447−49.4% | Reduced |