HUDSON TECHNOLOGIES INC /NY (HDSN) — Institutional Holders, Q2 2026
152 institutional investment managers reported a HDSN position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $181.4M. Every filer is listed below, ranked by position value, 100 per page; this page shows ranks 1 to 100. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.
HDSN in Q2 2026: what funds did
Funds that filed a 13F for both Q1 2026 and Q2 2026, by what they did with the common stock. Share counts are adjusted for any split between the two quarters; dollar figures are the change in shares at this quarter’s price.
Biggest buyers
- Hartree PartnersAdded · +611,889 sh+$3.5M
- NuveenAdded · +392,825 sh+$2.3M
- Qube Research & Technologies LtdAdded · +350,971 sh+$2.0M
- JACOBS LEVY EQUITY MANAGEMENTAdded · +327,658 sh+$1.9M
- Ancora AdvisorsNew · +303,380 sh+$1.7M
Biggest sellers
- NEW SOUTH CAPITAL MANAGEMENTSold out · -1,241,223 sh-$7.1M
- PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIOTrimmed · -358,600 sh-$2.1M
- LAZARD ASSET MANAGEMENTSold out · -325,915 sh-$1.9M
- AMERICAN CENTURY COMPANIESTrimmed · -318,312 sh-$1.8M
- AQR CAPITAL MANAGEMENTTrimmed · -182,401 sh-$1.0M
HDSN 13F holders ranked 1–100 of 152
| # | Institution | Shares | Value | % of portfolio | QoQShares vs Q1 2026 |
|---|---|---|---|---|---|
| 1 | Hartree Partners#1 · 4,411,889 sh | 4,411,889 | $25.3M | 5.40% | +16.1% |
| 2 | WESTERLY CAPITAL MANAGEMENT#2 · 3,380,000 sh | 3,380,000 | $19.4M | 3.58% | +6.5% |
| 3 | BlackRock#3 · 2,840,272 sh | 2,840,272 | $16.3M | <0.01% | -0.8% |
| 4 | DIMENSIONAL FUND ADVISORS#4 · 1,967,914 sh | 1,967,914 | $11.3M | <0.01% | -8.4% |
| 5 | VANGUARD CAPITAL MANAGEMENT#5 · 1,654,259 sh | 1,654,259 | $9.5M | <0.01% | -0.4% |
| 6 | RENAISSANCE TECHNOLOGIES#6 · 1,442,115 sh | 1,442,115 | $8.3M | 0.01% | -4.1% |
| 7 | AMERICAN CENTURY COMPANIES#7 · 1,169,462 sh | 1,169,462 | $6.7M | <0.01% | -21.4% |
| 8 | GEODE CAPITAL MANAGEMENT#8 · 995,011 sh | 995,011 | $5.7M | <0.01% | +4.9% |
| 9 | STATE STREET#9 · 895,776 sh | 895,776 | $5.1M | <0.01% | -0.2% |
| 10 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP#10 · 777,989 sh | 777,989 | $4.5M | <0.01% | -11.7% |
| 11 | CASPIAN CAPITAL#11 · 728,306 sh | 728,306 | $4.2M | 2.37% | 0.0% |
| 12 | Qube Research & Technologies Ltd#12 · 721,847 sh | 721,847 | $4.1M | <0.01% | +94.6% |
| 13 | CITADEL ADVISORS#13 · 574,266 sh | 574,266 | $3.3M | <0.01% | +39.1% |
| 14 | JACOBS LEVY EQUITY MANAGEMENT#14 · 506,591 sh | 506,591 | $2.9M | 0.01% | +183.1% |
| 15 | BRIDGEWAY CAPITAL MANAGEMENT#15 · 494,432 sh | 494,432 | $2.8M | 0.05% | -0.7% |
| 16 | Nuveen#16 · 476,540 sh | 476,540 | $2.7M | <0.01% | +469.2% |
| 17 | MARSHALL WACE, LLP#17 · 474,354 sh | 474,354 | $2.7M | <0.01% | +116.3% |
| 18 | D. E. Shaw#18 · 409,591 sh | 409,591 | $2.4M | <0.01% | +14.2% |
| 19 | MORGAN STANLEY#19 · 367,159 sh | 367,159 | $2.1M | <0.01% | -22.2% |
| 20 | Russell Investments Group, Ltd.#20 · 362,489 sh | 362,489 | $2.1M | <0.01% | +134.8% |
| 21 | 683 Capital Management#21 · 325,000 sh | 325,000 | $1.9M | 0.09% | 0.0% |
| 22 | JB CAPITAL PARTNERS#22 · 306,200 sh | 306,200 | $1.8M | 0.27% | 0.0% |
| 23 | Ancora Advisors#23 · 303,380 sh | 303,380 | $1.7M | 0.03% | New |
| 24 | Kerrisdale Advisers#24 · 299,976 sh | 299,976 | $1.7M | 0.43% | +420.6% |
| 25 | VANGUARD PORTFOLIO MANAGEMENT#25 · 290,537 sh | 290,537 | $1.7M | <0.01% | +8.2% |
| 26 | NORTHERN#26 · 282,011 sh | 282,011 | $1.6M | <0.01% | -29.4% |
| 27 | VANGUARD FIDUCIARY#27 · 245,071 sh | 245,071 | $1.4M | <0.01% | +0.9% |
| 28 | KBC Group NV#28 · 207,466 sh | 207,466 | $1.2M | — | +68.7% |
| 29 | Empowered Funds#29 · 205,878 sh | 205,878 | $1.2M | <0.01% | +5.8% |
| 30 | Bank of New York Mellon#30 · 204,779 sh | 204,779 | $1.2M | <0.01% | -27.5% |
| 31 | KESTREL INVESTMENT MANAGEMENT#31 · 200,750 sh | 200,750 | $1.2M | 0.63% | 0.0% |
| 32 | GOLDMAN SACHS GROUP#32 · 176,708 sh | 176,708 | $1.0M | <0.01% | -10.7% |
| 33 | Pacific Ridge Capital Partners#33 · 174,539 sh | 174,539 | $1.0M | 0.18% | +18.8% |
| 34 | MARATHON CAPITAL MANAGEMENT#34 · 173,325 sh | 173,325 | $994.9K | — | -0.6% |
| 35 | AQR CAPITAL MANAGEMENT#35 · 161,903 sh | 161,903 | $929.3K | <0.01% | -53.0% |
| 36 | FIRST ADVISORS#36 · 151,809 sh | 151,809 | $871.4K | <0.01% | +4.6% |
| 37 | Numerai GP#37 · 150,254 sh | 150,254 | $862.5K | 0.07% | -15.3% |
| 38 | CREDIT AGRICOLE S A#38 · 140,000 sh | 140,000 | $803.6K | <0.01% | 0.0% |
| 39 | WEDGE CAPITAL MANAGEMENT L L P#39 · 137,618 sh | 137,618 | $789.9K | — | -4.9% |
| 40 | TWO SIGMA INVESTMENTS#40 · 131,960 sh | 131,960 | $757.5K | <0.01% | -51.6% |
| 41 | PRUDENTIAL FINANCIAL#41 · 121,740 sh | 121,740 | $698.8K | <0.01% | 0.0% |
| 42 | Inspire Investing#42 · 119,191 sh | 119,191 | $684.2K | — | +35.3% |
| 43 | CHARLES SCHWAB INVESTMENT MANAGEMENT#43 · 109,013 sh | 109,013 | $625.7K | <0.01% | +6.9% |
| 44 | Quantinno Capital Management#44 · 106,964 sh | 106,964 | $614.0K | <0.01% | +40.2% |
| 45 | AMERIPRISE FINANCIAL#45 · 98,394 sh | 98,394 | $564.8K | <0.01% | +72.4% |
| 46 | PRICE T ROWE ASSOCIATES#46 · 95,960 sh | 95,960 | $551.0K | <0.01% | +19.9% |
| 47 | JPMORGAN CHASE#47 · 93,739 sh | 93,739 | $513.7K | 0.00% | -20.2% |
| 48 | Invesco Ltd.#48 · 70,075 sh | 70,075 | $402.2K | 0.00% | -11.1% |
| 49 | PINNACLE ASSOCIATES LTD#49 · 70,000 sh | 70,000 | $401.8K | — | 0.0% |
| 50 | Squarepoint Ops#50 · 66,220 sh | 66,220 | $380.1K | <0.01% | +154.5% |
| 51 | DEUTSCHE BANK AG\#51 · 61,117 sh | 61,117 | $350.8K | <0.01% | +4.9% |
| 52 | UBS Group AG#52 · 58,368 sh | 58,368 | $335.0K | 0.00% | +37.4% |
| 53 | BANK OF AMERICA#53 · 57,906 sh | 57,906 | $332.4K | 0.00% | -43.4% |
| 54 | ISTHMUS PARTNERS#54 · 57,456 sh | 57,456 | $329.8K | — | +32.4% |
| 55 | BAILARD#55 · 56,574 sh | 56,574 | $324.7K | — | New |
| 56 | Inspire Advisors#56 · 54,249 sh | 54,249 | $311.4K | 0.02% | +49.0% |
| 57 | PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO#57 · 51,499 sh | 51,499 | $295.6K | <0.01% | -87.4% |
| 58 | Odyssean#58 · 50,673 sh | 50,673 | $290.9K | 0.05% | New |
| 59 | RHUMBLINE ADVISERS#59 · 50,040 sh | 50,040 | $287.2K | <0.01% | +0.3% |
| 60 | Schonfeld Strategic Advisors#60 · 49,528 sh | 49,528 | $284.3K | <0.01% | +15.9% |
| 61 | ALLIANCEBERNSTEIN L.P.#61 · 46,710 sh | 46,710 | $274.7K | <0.01% | +10.7% |
| 62 | Sanctuary Advisors#62 · 46,344 sh | 46,344 | $266.0K | <0.01% | New |
| 63 | EXCHANGE TRADED CONCEPTS#63 · 46,108 sh | 46,108 | $264.7K | <0.01% | +16.7% |
| 64 | Point72 Asset Management, L.P.#64 · 45,731 sh | 45,731 | $262.5K | <0.01% | New |
| 65 | SUSQUEHANNA INTERNATIONAL GROUP, LLP#65 · 45,095 sh | 45,095 | $258.8K | 0.00% | +32.0% |
| 66 | COMMONWEALTH EQUITY SERVICES#66 · 42,504 sh | 42,504 | $244.0K | <0.01% | +10.0% |
| 67 | CANADA PENSION PLAN INVESTMENT BOARD#67 · 42,500 sh | 42,500 | $243.9K | <0.01% | -11.5% |
| 68 | EntryPoint Capital#68 · 33,461 sh | 33,461 | $192.1K | 0.05% | New |
| 69 | Campbell & Investment Adviser#69 · 32,995 sh | 32,995 | $189.4K | <0.01% | -46.3% |
| 70 | WELLS FARGO & COMPANY#70 · 32,878 sh | 32,878 | $188.7K | 0.00% | +106.1% |
| 71 | Union Bankshares#71 · 31,250 sh | 31,250 | $179.4K | <0.01% | 0.0% |
| 72 | Vident Advisory#72 · 30,875 sh | 30,875 | $177.2K | <0.01% | 0.0% |
| 73 | RAYMOND JAMES FINANCIAL#73 · 30,375 sh | 30,375 | $174.4K | 0.00% | -28.9% |
| 74 | STATE OF WISCONSIN INVESTMENT BOARD#74 · 29,550 sh | 29,550 | $169.6K | <0.01% | -63.4% |
| 75 | Jump Financial#75 · 27,943 sh | 27,943 | $160.4K | <0.01% | -69.2% |
| 76 | Park Capital Management, / WI#76 · 27,078 sh | 27,078 | $155.4K | — | New |
| 77 | Graham Capital Management, L.P.#77 · 26,736 sh | 26,736 | $153.5K | <0.01% | -25.8% |
| 78 | FIFTH THIRD BANCORP#78 · 24,585 sh | 24,585 | $141.1K | <0.01% | -19.1% |
| 79 | MetLife Investment Management#79 · 22,591 sh | 22,591 | $129.7K | <0.01% | +164.1% |
| 80 | XTX Topco Ltd#80 · 21,149 sh | 21,149 | $121.4K | <0.01% | New |
| 81 | CITIGROUP#81 · 18,883 sh | 18,883 | $108.4K | 0.00% | +956.7% |
| 82 | Connor, Clark & Lunn Investment Management Ltd.#82 · 18,546 sh | 18,546 | $106.5K | <0.01% | New |
| 83 | Boston Partners#83 · 18,221 sh | 18,221 | $104.6K | <0.01% | -54.4% |
| 84 | Symmetry Partners#84 · 18,033 sh | 18,033 | $103.5K | <0.01% | New |
| 85 | MIRAE ASSET GLOBAL ETFS Ltd.#85 · 17,193 sh | 17,193 | $98.7K | <0.01% | -6.1% |
| 86 | Empirical Asset Management#86 · 17,059 sh | 17,059 | $97.9K | 0.02% | New |
| 87 | WEALTH ENHANCEMENT ADVISORY SERVICES#87 · 15,133 sh | 15,133 | $97.6K | — | -5.4% |
| 88 | EP Wealth Advisors#88 · 16,875 sh | 16,875 | $96.9K | <0.01% | -19.5% |
| 89 | OSAIC#89 · 16,809 sh | 16,809 | $96.5K | <0.01% | -11.8% |
| 90 | Commonwealth Financial Services#90 · 16,728 sh | 16,728 | $96.0K | — | New |
| 91 | Fifth Third Wealth Advisors#91 · 16,445 sh | 16,445 | $94.4K | — | New |
| 92 | Quadrature Capital Ltd#92 · 16,395 sh | 16,395 | $94.1K | <0.01% | -20.8% |
| 93 | MERCER GLOBAL ADVISORS#93 · 15,081 sh | 15,081 | $86.6K | <0.01% | New |
| 94 | Vanguard Global Advisers#94 · 14,929 sh | 14,929 | $85.7K | 0.00% | 0.0% |
| 95 | TCG Advisory Services#95 · 14,918 sh | 14,918 | $85.6K | <0.01% | New |
| 96 | Inscription Capital#96 · 14,032 sh | 14,032 | $80.5K | <0.01% | New |
| 97 | State of Wyoming#97 · 13,503 sh | 13,503 | $77.5K | <0.01% | -53.6% |
| 98 | BROWN BROTHERS HARRIMAN#98 · 13,263 sh | 13,263 | $76.1K | <0.01% | 0.0% |
| 99 | ANCHYRA PARTNERS#99 · 13,063 sh | 13,063 | $75.0K | — | New |
| 100 | FMR#100 · 13,023 sh | 13,023 | $74.8K | 0.00% | -19.6% |
Funds that sold out of HDSN in Q2 2026 (29)
Held HDSN at the end of Q1 2026 and filed a Q2 2026 13F without it. Not in the list above, because they no longer hold it. Largest prior position first.
| Institution | Shares sold | Value in Q1 2026 |
|---|---|---|
| NEW SOUTH CAPITAL MANAGEMENT1,241,223 sh | 1,241,223 | $7.3M |
| LAZARD ASSET MANAGEMENT325,915 sh | 325,915 | $1.9M |
| O'SHAUGHNESSY ASSET MANAGEMENT170,825 sh | 170,825 | $1.0M |
| GRIMES & WEALTH MANAGEMENT158,618 sh | 158,618 | $932.7K |
| EdgeRock Capital90,517 sh | 90,517 | $532.2K |
| MACKENZIE FINANCIAL82,339 sh | 82,339 | $484.2K |
| STRS OHIO77,100 sh | 77,100 | $453.3K |
| MILLENNIUM MANAGEMENT72,683 sh | 72,683 | $427.4K |
| JANE STREET GROUP69,854 sh | 69,854 | $410.7K |
| VOYA INVESTMENT MANAGEMENT60,855 sh | 60,855 | $357.8K |
| WINTON GROUP Ltd58,528 sh | 58,528 | $344.1K |
| ZAZOVE ASSOCIATES50,000 sh | 50,000 | $342.5K |
| FOX RUN MANAGEMENT, L.L.C.39,373 sh | 39,373 | $225.2K |
| ExodusPoint Capital Management31,125 sh | 31,125 | $183.0K |
| MIRABELLA FINANCIAL SERVICES LLP24,735 sh | 24,735 | $145.4K |
| FRANKLIN RESOURCES22,600 sh | 22,600 | $132.9K |
| Aquatic Capital Management14,935 sh | 14,935 | $87.8K |
| TUDOR INVESTMENT ET AL14,790 sh | 14,790 | $87.0K |
| Sequoia Financial Advisors14,000 sh | 14,000 | $82.3K |
| Centiva Capital13,529 sh | 13,529 | $79.6K |
| Prime Capital Investment Advisors12,596 sh | 12,596 | $74.1K |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE10,658 sh | 10,658 | $62.7K |
| MANGROVE PARTNERS IM10,401 sh | 10,401 | $61.2K |
| INTECH INVESTMENT MANAGEMENT10,290 sh | 10,290 | $60.5K |
| NEW YORK STATE TEACHERS RETIREMENT SYSTEM3,518 sh | 3,518 | $21.0K |
| Private Wealth Management Group299 sh | 299 | $1.8K |
| US BANCORP \DE\56 sh | 56 | $329.00 |
| Hilton Head Capital Partners50 sh | 50 | $294.00 |
| Kilter Group20 sh | 20 | $118.00 |
Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.