Hudson Technologies Inc
HDSN- Exchange
- Nasdaq
- Industry
- Wholesale-Machinery, Equipment & Supplies
- SEC CIK
- 0000925528
In the last 90 days, Hudson Technologies Inc insiders filed 10 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, Q3 2025
Institutional positions in Hudson Technologies Inc as of Sep 30, 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
- 170
- +23 vs. Q2 2025
- Shares held
- 33.3M
- −46.4K (−0.1%) vs. Q2 2025
- Total value
- $330.3M
- +$59.8M (+22.1%) vs. Q2 2025
- New holders
- 42
- 45 more added
- Sold out
- 19
- 50 more reduced
2 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 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, Q3 2025
Shares, value and share of portfolio for each institution holding Hudson Technologies Inc; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Isthmus Partners, LLC | 48,516 | $481.8K | 0.11% | 00.0% | Unchanged |
| Campbell & CO Investment Adviser LLC | 49,218 | $488.7K | 0.04% | +49,218 | New |
| Zazove Associates LLC | 50,000 | $496.5K | 0.05% | −6,250−11.1% | Reduced |
| Quantinno Capital Management LP | 55,335 | $549.5K | 0.00% | +9,919+21.8% | Added |
| Boothbay Fund Management, LLC | 57,030 | $566.3K | 0.01% | +57,030 | New |
| STRS Ohio | 59,600 | $591.8K | 0.00% | −6,400−9.7% | Reduced |
| Voya Investment Management LLC | 60,207 | $597.9K | 0.00% | −10,328−14.6% | Reduced |
| Barclays PLC | 60,548 | $601.2K | 0.00% | −6,846−10.2% | Reduced |
| Rhumbline Advisers | 61,409 | $609.8K | 0.00% | −5,015−7.5% | Reduced |
| Deutsche Bank AG | 62,499 | $620.6K | 0.00% | +6,273+11.2% | Added |
| Kerrisdale Advisers, LLC | 64,100 | $636.5K | 0.33% | 00.0% | Unchanged |
| Winton Group Ltd | 64,486 | $640.3K | 0.02% | +40,057+164.0% | Added |
| Ameriprise Financial Inc | 68,875 | $683.9K | 0.00% | −27,505−28.5% | Reduced |
| Pinnacle Associates Ltd | 70,000 | $695.1K | 0.01% | 00.0% | Unchanged |
| State of Wisconsin Investment Board | 72,827 | $723.2K | 0.00% | −27,370−27.3% | Reduced |
| Price T Rowe Associates Inc | 73,706 | $732.0K | 0.00% | 00.0% | Unchanged |
| Invesco Ltd. | 78,784 | $782.3K | 0.00% | +7,036+9.8% | Added |
| Nuveen, LLC | 83,140 | $825.6K | 0.00% | −10,325−11.0% | Reduced |
| EdgeRock Capital LLC | 85,297 | $847.0K | 0.24% | 00.0% | Unchanged |
| Qube Research & Technologies Ltd | 88,696 | $880.8K | 0.00% | +88,696 | New |
| Pacific Ridge Capital Partners, LLC | 103,580 | $1.03M | 0.23% | 00.0% | Unchanged |
| Franklin Resources Inc | 105,061 | $1.04M | 0.00% | +3,912+3.9% | Added |
| Citadel Advisors LLC | 114,386 | $1.14M | 0.00% | +18,792+19.7% | Added |
| Charles Schwab Investment Management Inc | 114,892 | $1.14M | 0.00% | −490.0% | Reduced |
| Marshall Wace, LLP | 125,587 | $1.25M | 0.00% | +125,587 | New |
| UBS Group AG | 133,820 | $1.33M | 0.00% | +25,862+24.0% | Added |
| First Trust Advisors LP | 137,807 | $1.37M | 0.00% | +121,878+765.1% | Added |
| Jane Street Group, LLC | 142,521 | $1.42M | 0.00% | +49,286+52.9% | Added |
| JPMorgan Chase & Co | 142,898 | $1.42M | 0.00% | −12,777−8.2% | Reduced |
| Russell Investments Group, Ltd. | 149,659 | $1.49M | 0.00% | +30,783+25.9% | Added |
| Wedge Capital Management L L P | 155,068 | $1.54M | 0.03% | −55,234−26.3% | Reduced |
| Empowered Funds, LLC | 158,806 | $1.58M | 0.02% | +83,536+111.0% | Added |
| Goldman Sachs Group Inc | 164,460 | $1.63M | 0.00% | +47,804+41.0% | Added |
| North Star Investment Management Corp. | 170,075 | $1.69M | 0.11% | +6,000+3.7% | Added |
| Allspring Global Investments Holdings, LLC | 175,311 | $1.70M | 0.00% | +175,311 | New |
| O'Shaughnessy Asset Management, LLC | 175,888 | $1.75M | 0.01% | −163−0.1% | Reduced |
| Two Sigma Investments, LP | 190,221 | $1.89M | 0.00% | −163,058−46.2% | Reduced |
| Marathon Capital Management | 194,450 | $1.93M | 0.44% | −55,000−22.0% | Reduced |
| Cubist Systematic Strategies, LLC | 205,932 | $2.04M | 0.03% | +205,932 | New |
| Tudor Investment Corp Et Al | 207,249 | $2.06M | 0.01% | +207,249 | New |
| Kestrel Investment Management Corp | 208,850 | $2.07M | 1.17% | 00.0% | Unchanged |
| Trexquant Investment LP | 210,905 | $2.09M | 0.02% | +91,375+76.4% | Added |
| Acadian Asset Management LLC | 211,945 | $2.10M | 0.00% | +211,945 | New |
| Jacobs Levy Equity Management, Inc | 222,945 | $2.21M | 0.01% | +61,153+37.8% | Added |
| Two Sigma Advisers, LP | 227,700 | $2.26M | 0.00% | −166,400−42.2% | Reduced |
| Los Angeles Capital Management LLC | 231,192 | $2.30M | 0.01% | +231,192 | New |
| Lazard Asset Management LLC | 260,805 | $2.59M | 0.00% | +179,994+222.7% | Added |
| Bank of America Corp | 279,172 | $2.77M | 0.00% | +104,490+59.8% | Added |
| JB Capital Partners LP | 306,200 | $3.04M | 0.51% | 00.0% | Unchanged |
| Bank of New York Mellon Corp | 338,390 | $3.36M | 0.00% | +1,690+0.5% | Added |
| AQR Capital Management LLC | 345,284 | $3.43M | 0.00% | +14,333+4.3% | Added |
| 683 Capital Management, LLC | 350,000 | $3.48M | 0.32% | −25,000−6.7% | Reduced |
| Millennium Management LLC | 355,958 | $3.53M | 0.00% | −110,767−23.7% | Reduced |
| Bridgeway Capital Management, LLC | 360,648 | $3.58M | 0.08% | +63,536+21.4% | Added |
| Public Employees Retirement System of Ohio | 410,099 | $4.07M | 0.01% | 00.0% | Unchanged |
| Northern Trust Corp | 416,507 | $4.14M | 0.00% | −13,271−3.1% | Reduced |
| Morgan Stanley | 792,727 | $7.87M | 0.00% | +37,179+4.9% | Added |
| Royal Bank of Canada | 802,872 | $7.97M | 0.00% | −35,099−4.2% | Reduced |
| D. E. Shaw & Co., Inc. | 821,809 | $8.16M | 0.01% | +30,146+3.8% | Added |
| State Street Corp | 893,855 | $8.88M | 0.00% | −50,281−5.3% | Reduced |
| Geode Capital Management, LLC | 954,426 | $9.48M | 0.00% | +10,002+1.1% | Added |
| Arrowstreet Capital, Limited Partnership | 1,111,803 | $11.0M | 0.01% | 00.0% | Unchanged |
| American Century Companies Inc | 1,273,890 | $12.6M | 0.01% | +201,136+18.7% | Added |
| New South Capital Management Inc | 1,334,337 | $13.2M | 0.60% | −16,606−1.2% | Reduced |
| Renaissance Technologies LLC | 1,796,850 | $17.8M | 0.02% | +125,000+7.5% | Added |
| Westerly Capital Management, LLC | 1,890,000 | $18.8M | 5.95% | −110,000−5.5% | Reduced |
| Dimensional Fund Advisors LP | 2,009,481 | $20.0M | 0.00% | +2,515+0.1% | Added |
| Vanguard Group Inc | 2,373,181 | $23.6M | 0.00% | −107,128−4.3% | Reduced |
| BlackRock, Inc. | 2,863,273 | $28.4M | 0.00% | −42,560−1.5% | Reduced |
| Hartree Partners, LP | 3,800,000 | $37.7M | 13.10% | −200,000−5.0% | Reduced |
| Janus Henderson Group PLC | 0 | $0 | 0.00% | −581,562−100.0% | Sold out |
| Oaktree Capital Management LPSuperinvestorOaktree Capital | 0 | $0 | 0.00% | −562,662−100.0% | Sold out |
| Susquehanna International Group, LLP | 0 | $0 | 0.00% | −258,849−100.0% | Sold out |
| Y-Intercept (Hong Kong) Ltd | 0 | $0 | 0.00% | −135,222−100.0% | Sold out |
| SummerHaven Investment Management, LLC | 0 | $0 | 0.00% | −96,922−100.0% | Sold out |
| Victory Capital Management Inc | 0 | $0 | 0.00% | −65,109−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −35,248−100.0% | Sold out |
| State of Tennessee, Treasury Department | 0 | $0 | 0.00% | −27,354−100.0% | Sold out |
| Sherbrooke Park Advisers LLC | 0 | $0 | 0.00% | −15,432−100.0% | Sold out |
| RBF Capital, LLC | 0 | $0 | 0.00% | −15,193−100.0% | Sold out |
| Sequoia Financial Advisors, LLC | 0 | $0 | 0.00% | −12,825−100.0% | Sold out |
| PEAK6 LLC | 0 | $0 | 0.00% | −12,804−100.0% | Sold out |
| Wolverine Trading, LLC | 0 | $0 | 0.00% | −11,373−100.0% | Sold out |
| Group One Trading, L.P. | 0 | $0 | 0.00% | −5,734−100.0% | Sold out |
| GWM Advisors LLC | 0 | $0 | 0.00% | −2,861−100.0% | Sold out |
| Quest Partners LLC | 0 | $0 | 0.00% | −479−100.0% | Sold out |
| Caitong International Asset Management Co., Ltd | 0 | $0 | 0.00% | −472−100.0% | Sold out |
| Anchor Investment Management, LLC | 0 | $0 | 0.00% | −200−100.0% | Sold out |
| Skopos Labs, Inc. | 0 | $0 | 0.00% | −86−100.0% | Sold out |
| EP Wealth Advisors, LLC | – | – | – | – | Not filed |
| First Horizon Advisors, Inc. | – | – | – | – | Not filed |