HUDSON TECHNOLOGIES INC (HDSN)
Institutional ownership reported to the SEC as of Q2 2026, across 31 quarters.
146
Reporting holders
$180.8M
Reported value
74.7%
Of shares outstanding
0.1%
Held as options
-6
Holder change
Institutions report 31,452,451 shares against 42,088,547 outstanding. Shares only - option lines are excluded, which is why this can be compared with the company at all. The count comes from the cover page of the company's own most recent report, so it is dated when that was filed rather than at quarter end.
Options share is the part of reported value carried in derivative lines rather than shares. A high figure means institutions are expressing a view on this security without owning much of it.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| Hartree Partners, LP | $25.3M | 4,411,889 | 5.40% | 6q | +16.1%+$3.5M |
| WESTERLY CAPITAL MANAGEMENT, LLC | $19.4M | 3,380,000 | 3.58% | 19q | +6.5%+$1.2M |
| BlackRock, Inc. | $16.3M | 2,840,272 | 0.00% | 8q | -0.8%-$127.8K |
| DIMENSIONAL FUND ADVISORS LP | $11.3M | 1,967,914 | 0.00% | 21q | -8.4%-$1.0M |
| VANGUARD CAPITAL MANAGEMENT LLC | $9.5M | 1,654,259 | 0.00% | 2q | HELD |
| RENAISSANCE TECHNOLOGIES LLC | $8.3M | 1,442,115 | 0.01% | 23q | -4.1%-$356.7K |
| AMERICAN CENTURY COMPANIES INC | $6.7M | 1,169,462 | 0.00% | 16q | -21.4%-$1.8M |
| GEODE CAPITAL MANAGEMENT, LLC | $5.7M | 995,011 | 0.00% | 31q | +4.9%+$266.8K |
| STATE STREET CORP | $5.1M | 895,776 | 0.00% | 31q | HELD |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | $4.5M | 777,989 | 0.00% | 7q | -11.7%-$592.6K |
| CASPIAN CAPITAL LP | $4.2M | 728,306 | 2.37% | 6q | HELD |
| Qube Research & Technologies Ltd | $4.1M | 721,847 | 0.00% | 4q | +94.6%+$2.0M |
| CITADEL ADVISORS LLC | $3.3M | 574,266 | 0.00% | 31q | +39.1%+$927.1K |
| JACOBS LEVY EQUITY MANAGEMENT, INC | $2.9M | 506,591 | 0.01% | 7q | +183.1%+$1.9M |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | $2.8M | 494,432 | 0.05% | 7q | -0.7%-$21.1K |
| Nuveen, LLC | $2.7M | 476,540 | 0.00% | 6q | +469.2%+$2.3M |
| MARSHALL WACE, LLP | $2.7M | 474,354 | 0.00% | 4q | +116.3%+$1.5M |
| D. E. Shaw & Co., Inc. | $2.4M | 409,591 | 0.00% | 12q | +14.2%+$292.2K |
| MORGAN STANLEY | $2.1M | 367,159 | 0.00% | 35q | -22.2%-$601.5K |
| Russell Investments Group, Ltd. | $2.1M | 362,489 | 0.00% | 11q | +134.8%+$1.2M |
| 683 Capital Management, LLC | $1.9M | 325,000 | 0.09% | 9q | HELD |
| JB CAPITAL PARTNERS LP | $1.8M | 306,200 | 0.27% | 22q | HELD |
| Ancora Advisors LLC | $1.7M | 303,380 | 0.03% | new | NEW |
| Kerrisdale Advisers, LLC | $1.7M | 299,976 | 0.43% | 9q | +420.6%+$1.4M |
| VANGUARD PORTFOLIO MANAGEMENT LLC | $1.7M | 290,537 | 0.00% | 2q | +8.2%+$126.3K |
| NORTHERN TRUST CORP | $1.6M | 282,011 | 0.00% | 31q | -29.4%-$673.6K |
| VANGUARD FIDUCIARY TRUST CO | $1.4M | 245,071 | 0.00% | 2q | +0.9%+$12.7K |
| Empowered Funds, LLC | $1.2M | 205,878 | 0.01% | 2q | +5.8%+$65.0K |
| Bank of New York Mellon Corp | $1.2M | 204,779 | 0.00% | 19q | -27.5%-$445.7K |
| KESTREL INVESTMENT MANAGEMENT CORP | $1.2M | 200,750 | 0.63% | 8q | HELD |
| GOLDMAN SACHS GROUP INC | $1.0M | 176,708 | 0.00% | 21q | -10.7%-$121.8K |
| Pacific Ridge Capital Partners, LLC | $1.0M | 174,539 | 0.18% | 12q | +18.8%+$158.5K |
| MARATHON CAPITAL MANAGEMENT | $994.9K | 173,325 | 0.20% | 31q | -0.6%-$5.7K |
| AQR CAPITAL MANAGEMENT LLC | $929.3K | 161,903 | 0.00% | 16q | -53.0%-$1.0M |
| FIRST TRUST ADVISORS LP | $871.4K | 151,809 | 0.00% | 7q | +4.6%+$38.6K |
| Numerai GP LLC | $862.5K | 150,254 | 0.07% | 2q | -15.3%-$155.2K |
| CREDIT AGRICOLE S A | $803.6K | 140,000 | 0.00% | 3q | HELD |
| WEDGE CAPITAL MANAGEMENT L L P/NC | $789.9K | 137,618 | 0.01% | 7q | -4.9%-$40.9K |
| TWO SIGMA INVESTMENTS, LP | $757.5K | 131,960 | 0.00% | 12q | -51.6%-$809.1K |
| PRUDENTIAL FINANCIAL INC | $698.8K | 121,740 | 0.00% | 3q | HELD |
| Inspire Investing, LLC | $684.2K | 119,191 | 0.03% | 4q | +35.3%+$178.5K |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $625.7K | 109,013 | 0.00% | 18q | +6.9%+$40.4K |
| Sixth Street Partners Management Company, L.P. | $625.7K | 109,013 | 0.00% | new | NEW |
| Quantinno Capital Management LP | $614.0K | 106,964 | 0.00% | 6q | +40.2%+$176.2K |
| AMERIPRISE FINANCIAL INC | $564.8K | 98,394 | 0.00% | 7q | -13.8%-$90.6K |
| EXCHANGE TRADED CONCEPTS, LLC | $529.3K | 92,216 | 0.00% | 8q | +133.4%+$302.5K |
| JPMORGAN CHASE & CO | $513.7K | 93,739 | 0.00% | 18q | -20.2%-$130.4K |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | $501.1K | 45,095 | 0.00% | 31q | +32.0%+$121.6K |
| Invesco Ltd. | $402.2K | 70,075 | 0.00% | 18q | -11.1%-$50.0K |
| PINNACLE ASSOCIATES LTD | $401.8K | 70,000 | 0.00% | 13q | HELD |
| Squarepoint Ops LLC | $380.1K | 66,220 | 0.00% | 3q | +154.5%+$230.8K |
| DEUTSCHE BANK AG\ | $350.8K | 61,117 | 0.00% | 17q | +4.9%+$16.3K |
| UBS Group AG | $335.0K | 58,368 | 0.00% | 22q | +37.4%+$91.2K |
| BANK OF AMERICA CORP /DE/ | $332.4K | 57,906 | 0.00% | 17q | -43.4%-$255.0K |
| ISTHMUS PARTNERS, LLC | $329.8K | 57,456 | 0.03% | 6q | +32.4%+$80.7K |
| BAILARD, INC. | $324.7K | 56,574 | 0.01% | new | NEW |
| Inspire Advisors, LLC | $311.4K | 54,249 | 0.02% | 3q | +49.0%+$102.4K |
| PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO | $295.6K | 51,499 | 0.00% | 9q | -87.4%-$2.1M |
| Odyssean, LLC | $290.9K | 50,673 | 0.05% | new | NEW |
| RHUMBLINE ADVISERS | $287.2K | 50,040 | 0.00% | 17q | HELD |
| Schonfeld Strategic Advisors LLC | $284.3K | 49,528 | 0.00% | 2q | +15.9%+$39.1K |
| ALLIANCEBERNSTEIN L.P. | $274.7K | 46,710 | 0.00% | 11q | +10.7%+$26.5K |
| Sanctuary Advisors, LLC | $266.0K | 46,344 | 0.00% | new | NEW |
| Point72 Asset Management, L.P. | $262.5K | 45,731 | 0.00% | new | NEW |
| COMMONWEALTH EQUITY SERVICES, LLC | $244.0K | 42,504 | 0.00% | 9q | +10.0%+$22.1K |
| CANADA PENSION PLAN INVESTMENT BOARD | $243.9K | 42,500 | 0.00% | 3q | -11.5%-$31.6K |
| EntryPoint Capital, LLC | $192.1K | 33,461 | 0.05% | new | NEW |
| Campbell & CO Investment Adviser LLC | $189.4K | 32,995 | 0.01% | 4q | -46.3%-$163.3K |
| WELLS FARGO & COMPANY/MN | $188.7K | 32,878 | 0.00% | 21q | +3.0%+$5.6K |
| Atlantic Union Bankshares Corp | $179.4K | 31,250 | 0.00% | 2q | HELD |
| Vident Advisory, LLC | $177.2K | 30,875 | 0.00% | 2q | HELD |
| RAYMOND JAMES FINANCIAL INC | $174.4K | 30,375 | 0.00% | 7q | -28.9%-$70.7K |
| MERCER GLOBAL ADVISORS INC /ADV | $173.1K | 30,162 | 0.00% | new | NEW |
| STATE OF WISCONSIN INVESTMENT BOARD | $169.6K | 29,550 | 0.00% | 10q | -63.4%-$293.5K |
| Jump Financial, LLC | $160.4K | 27,943 | 0.00% | 2q | -69.2%-$359.7K |
| Park Capital Management, LLC / WI | $155.4K | 27,078 | 0.09% | new | NEW |
| Graham Capital Management, L.P. | $153.5K | 26,736 | 0.00% | 4q | -25.8%-$53.4K |
| FIFTH THIRD BANCORP | $141.1K | 24,585 | 0.00% | 2q | -19.1%-$33.4K |
| MetLife Investment Management, LLC | $129.7K | 22,591 | 0.00% | 17q | +164.1%+$80.6K |
| XTX Topco Ltd | $121.4K | 21,149 | 0.00% | new | NEW |
| CITIGROUP INC | $108.4K | 18,883 | 0.00% | 13q | +956.7%+$98.1K |
| Connor, Clark & Lunn Investment Management Ltd. | $106.5K | 18,546 | 0.00% | new | NEW |
| Boston Partners | $104.6K | 18,221 | 0.00% | 10q | -54.4%-$125.0K |
| Symmetry Partners, LLC | $103.5K | 18,033 | 0.01% | new | NEW |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | $98.7K | 17,193 | 0.00% | 9q | -6.1%-$6.4K |
| Empirical Asset Management, LLC | $97.9K | 17,059 | 0.02% | new | NEW |
| WEALTH ENHANCEMENT ADVISORY SERVICES, LLC | $97.6K | 15,133 | 0.00% | 6q | -5.4%-$5.5K |
| EP Wealth Advisors, LLC | $96.9K | 16,875 | 0.00% | 6q | -19.5%-$23.5K |
| OSAIC HOLDINGS, INC. | $96.5K | 16,809 | 0.00% | 17q | -11.8%-$12.9K |
| Commonwealth Financial Services, LLC | $96.0K | 16,728 | 0.01% | new | NEW |
| Fifth Third Wealth Advisors LLC | $94.4K | 16,445 | 0.00% | new | NEW |
| Quadrature Capital Ltd | $94.1K | 16,395 | 0.00% | 2q | -20.8%-$24.7K |
| Vanguard Global Advisers, LLC | $85.7K | 14,929 | 0.00% | 2q | HELD |
| HUB Investment Partners, LLC | $85.6K | 14,918 | 0.00% | new | NEW |
| Inscription Capital, LLC | $80.5K | 14,032 | 0.01% | new | NEW |
| State of Wyoming | $77.5K | 13,503 | 0.01% | 7q | -53.6%-$89.5K |
| BROWN BROTHERS HARRIMAN & CO | $76.1K | 13,263 | 0.00% | 16q | HELD |
| ANCHYRA PARTNERS LLC | $75.0K | 13,063 | 0.02% | new | NEW |
| FMR LLC | $74.8K | 13,023 | 0.00% | 17q | -19.6%-$18.2K |
| Cardinal Point Capital Management ULC | $73.8K | 12,850 | 0.00% | 5q | HELD |
Five percent filings
Anyone crossing 5% of a company must say so within days - far sooner than the next quarterly holdings report. A 13D declares an intent to influence the company; a 13G is the passive version. See all activist filings →
| Filed | Form | Filer | % of class |
|---|---|---|---|
| 2026-07-14 | 13G/A | Dimensional Fund Advisors LP | 4.7% |
| 2026-07-02 | 13G/A | Hartree Partners, LP | 11.8% |
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 146 | $180.8M | 31,452,451 | 28 | 42 | 48 | 0.1% |
| Q1 2026 | 152 | $192.5M | 32,721,930 | 22 | 44 | 53 | 0.0% |
| Q4 2025 | 155 | $221.6M | 32,315,681 | 20 | 40 | 64 | 0.0% |
| Q3 2025 | 161 | $327.3M | 32,864,804 | 39 | 42 | 44 | 0.4% |
| Q2 2025 | 138 | $278.2M | 33,554,408 | 20 | 38 | 54 | 2.1% |
| Q1 2025 | 151 | $193.2M | 31,181,012 | 24 | 45 | 53 | 0.4% |
| Q4 2024 | 158 | $165.9M | 29,473,158 | 33 | 56 | 33 | 0.8% |
| Q3 2024 | 158 | $246.5M | 29,376,258 | 28 | 52 | 48 | 0.6% |
| Q2 2024 | 149 | $265.3M | 29,936,298 | 28 | 54 | 40 | 0.8% |
| Q1 2024 | 151 | $321.6M | 28,702,873 | 26 | 46 | 43 | 1.7% |
| Q4 2023 | 137 | $395.4M | 29,094,473 | 19 | 45 | 35 | 0.7% |
| Q3 2023 | 131 | $350.3M | 26,141,535 | 26 | 39 | 39 | 0.9% |
| Q2 2023 | 119 | $231.0M | 23,819,231 | 15 | 46 | 37 | 0.9% |
| Q1 2023 | 117 | $208.0M | 23,553,539 | 19 | 34 | 35 | 1.4% |
| Q4 2022 | 120 | $217.9M | 21,184,409 | 25 | 37 | 31 | 1.7% |
| Q3 2022 | 137 | $212.8M | 28,542,125 | 38 | 36 | 46 | 1.4% |
| Q2 2022 | 111 | $219.1M | 28,812,918 | 44 | 33 | 26 | 1.2% |
| Q1 2022 | 82 | $160.3M | 25,357,011 | 21 | 25 | 25 | 1.8% |
| Q4 2021 | 65 | $101.2M | 22,360,796 | 12 | 21 | 20 | 1.9% |
| Q3 2021 | 64 | $66.6M | 18,491,038 | 14 | 14 | 21 | 1.9% |
| Q2 2021 | 55 | $59.4M | 16,731,364 | 22 | 10 | 15 | 4.3% |
| Q1 2021 | 37 | $25.0M | 14,848,054 | 8 | 9 | 8 | 4.3% |
| Q4 2020 | 35 | $17.0M | 15,015,796 | 5 | 2 | 9 | 3.5% |
| Q3 2020 | 36 | $18.4M | 15,772,302 | 3 | 5 | 8 | 1.6% |
| Q2 2020 | 36 | $16.2M | 15,612,649 | 2 | 5 | 10 | 2.4% |
| Q1 2020 | 38 | $11.7M | 16,597,670 | 5 | 6 | 10 | 2.3% |
| Q4 2019 | 43 | $17.7M | 17,938,611 | 4 | 8 | 14 | 0.8% |
| Q3 2019 | 44 | $13.8M | 19,021,886 | 6 | 8 | 12 | 2.4% |
| Q2 2019 | 53 | $23.7M | 25,895,169 | 7 | 10 | 18 | 6.0% |
| Q1 2019 | 52 | $52.3M | 26,744,963 | 7 | 8 | 19 | 1.3% |
| Q4 2018 | 54 | $25.0M | 27,919,614 | 3 | 0 | 1 | 0.7% |