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HDSN · Hudson Technologies Inc /Ny

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$6.16 -0.08 (-1.28%) At close · Jul 28
Market Cap
$259.14M
Shares
42.07M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

The Jun 30, 2026 filing window is still open — showing the latest known positions. Funds that have not filed yet carry their prior-quarter positions; a fund that filed without this stock counts as sold out.
Holders: 158
Total Value: $190,748,428
Total Shares: 32,453,866
Showing 1–100 of 159 holdings by value · page 1 of 2

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 159 13F filers
Top Holder
11.6%
Jun 2023 → Mar 2026 · range 9.6% – 13.1%
of institutional value
Top 5
41.8%
Jun 2023 → Mar 2026 · range 30.3% – 47.4%
of institutional value
Top 10
60.4%
Jun 2023 → Mar 2026 · range 46.8% – 65.2%
of institutional value
HHI
487
Jun 2023 → Mar 2026 · range 327 – 585
Broadly held
Showing 100 of 159
All Common Calls Puts
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Holder Value (USD) % of 13F Shares Open
Small Hartree Partners, LP $22,344,000 11.71% 3,800,000
Small WESTERLY CAPITAL MANAGEMENT, LLC $18,669,000 9.79% 3,175,000
Mega BlackRock, Inc. $16,831,724 8.82% 2,862,539
Mega DIMENSIONAL FUND ADVISORS LP $12,632,067 6.62% 2,148,311
Mega VANGUARD CAPITAL MANAGEMENT LLC $9,761,658 5.12% 1,660,146
Large RENAISSANCE TECHNOLOGIES LLC $8,844,990 4.64% 1,504,250
Mega AMERICAN CENTURY COMPANIES INC $8,748,111 4.59% 1,487,774
Mid NEW SOUTH CAPITAL MANAGEMENT INC $7,298,390 3.83% 1,241,223
Mega GEODE CAPITAL MANAGEMENT, LLC $5,577,449 2.92% 948,546
Mega STATE STREET CORP $5,279,493 2.77% 897,873
Mega ARROWSTREET CAPITAL, LIMITED PARTNERSHIP $5,181,661 2.72% 881,235
Small CASPIAN CAPITAL LP $4,282,439 2.25% 728,306
Mid SEGALL BRYANT & HAMILL, LLC $3,694,645 1.94% 628,341
Mid BRIDGEWAY CAPITAL MANAGEMENT, LLC $2,928,880 1.54% 498,109
Mega MORGAN STANLEY $2,775,046 1.45% 471,947
Mega CITADEL ADVISORS LLC $2,426,969 1.27% 412,750
Large PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO Pension $2,411,382 1.26% 410,099
Mega NORTHERN TRUST CORP Bank $2,348,253 1.23% 399,363
Large Qube Research & Technologies Ltd $2,180,750 1.14% 370,876
Mega D. E. Shaw & Co., Inc. $2,109,049 1.11% 358,682
Mega AQR CAPITAL MANAGEMENT LLC $2,024,506 1.06% 344,304
Large LAZARD ASSET MANAGEMENT LLC $1,916,380 1.00% 325,915
Mid 683 Capital Management, LLC $1,911,000 1.00% 325,000
Small JB CAPITAL PARTNERS LP $1,800,456 0.94% 306,200
Mega Bank of New York Mellon Corp Bank $1,660,716 0.87% 282,435
Mega TWO SIGMA INVESTMENTS, LP $1,604,799 0.84% 272,925
Mega VANGUARD FIDUCIARY TRUST CO Bank $1,428,052 0.75% 242,866
Large MARSHALL WACE, LLP $1,289,313 0.68% 219,271
Small KESTREL INVESTMENT MANAGEMENT CORP $1,180,410 0.62% 200,750
Mega GOLDMAN SACHS GROUP INC $1,163,839 0.61% 197,932
Large Empowered Funds, LLC $1,143,983 0.60% 194,555
Large JACOBS LEVY EQUITY MANAGEMENT, INC $1,052,126 0.55% 178,933
Small Numerai GP LLC $1,042,476 0.55% 177,292
Large O'SHAUGHNESSY ASSET MANAGEMENT, LLC $1,004,451 0.53% 170,825
Small MARATHON CAPITAL MANAGEMENT $994,885 0.52% 173,325
Large Russell Investments Group, Ltd. $907,829 0.48% 154,393
Small Pacific Ridge Capital Partners, LLC $863,948 0.45% 146,930
Mega FIRST TRUST ADVISORS LP $853,088 0.45% 145,083
Large CREDIT AGRICOLE S A $823,200 0.43% 140,000
Mid WEDGE CAPITAL MANAGEMENT L L P/NC $789,927 0.41% 137,618
Large KBC Group NV $723,245 0.38% 123,001
Large PRUDENTIAL FINANCIAL INC $715,831 0.38% 121,740
Mega JPMORGAN CHASE & CO $691,128 0.36% 117,539
Mega BANK OF AMERICA CORP /DE/ Bank $601,729 0.32% 102,335
Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC $599,624 0.31% 101,977
Mid Jump Financial, LLC $532,728 0.28% 90,600
Small Inspire Investing, LLC $517,945 0.27% 88,086
Mega Nuveen, LLC $492,244 0.26% 83,715
Large MACKENZIE FINANCIAL CORP $484,153 0.25% 82,339
Large STATE OF WISCONSIN INVESTMENT BOARD $474,457 0.25% 80,690
Mega PRICE T ROWE ASSOCIATES INC /MD/ $470,476 0.25% 80,013
Mega Invesco Ltd. $463,261 0.24% 78,786
Large STRS OHIO $453,348 0.24% 77,100
Large Quantinno Capital Management LP $448,455 0.24% 76,268
Mega MILLENNIUM MANAGEMENT LLC $427,376 0.22% 72,683
Mid PINNACLE ASSOCIATES LTD $411,600 0.22% 70,000
Mega JANE STREET GROUP, LLC $410,741 0.22% 69,854
Mid Campbell & CO Investment Adviser LLC $361,284 0.19% 61,443
Large VOYA INVESTMENT MANAGEMENT LLC $357,827 0.19% 60,855
Mid WINTON GROUP Ltd $344,144 0.18% 58,528
Mega DEUTSCHE BANK AG\ Bank $342,668 0.18% 58,277
Small Kerrisdale Advisers, LLC $338,817 0.18% 57,622
Mega AMERIPRISE FINANCIAL INC $335,670 0.18% 57,087
Small ISTHMUS PARTNERS, LLC $329,797 0.17% 57,456
Mega RHUMBLINE ADVISERS $293,406 0.15% 49,899
Mega CANADA PENSION PLAN INVESTMENT BOARD Pension $282,240 0.15% 48,000
Large EXCHANGE TRADED CONCEPTS, LLC $264,659 0.14% 46,108
Large Schonfeld Strategic Advisors LLC $251,170 0.13% 42,716
Mega RAYMOND JAMES FINANCIAL INC $251,070 0.13% 42,699
Mega UBS Group AG $249,751 0.13% 42,475
Mega ALLIANCEBERNSTEIN L.P. $248,194 0.13% 42,210
Large Boston Partners $235,164 0.12% 39,994
Small FOX RUN MANAGEMENT, L.L.C. $231,513 0.12% 39,373
Large COMMONWEALTH EQUITY SERVICES, LLC $227,244 0.12% 38,647
Small Inspire Advisors, LLC $214,067 0.11% 36,406
Mid Graham Capital Management, L.P. $211,874 0.11% 36,033
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $200,825 0.11% 34,154
Mid Atlantic Union Bankshares Corp $183,750 0.10% 31,250
Large ExodusPoint Capital Management, LP $183,015 0.10% 31,125
Large Vident Advisory, LLC $181,545 0.10% 30,875
Large FIFTH THIRD BANCORP Bank $178,728 0.09% 30,396
Small State of Wyoming $171,090 0.09% 29,097
Small Park Capital Management, LLC / WI $155,427 0.08% 27,078
Large Squarepoint Ops LLC $152,985 0.08% 26,018
Small MIRABELLA FINANCIAL SERVICES LLP $145,441 0.08% 24,735
Mega FRANKLIN RESOURCES INC $132,888 0.07% 22,600
Mid EP Wealth Advisors, LLC $123,327 0.06% 20,974
Mid Quadrature Capital Ltd $121,710 0.06% 20,699
Large OSAIC HOLDINGS, INC. $112,084 0.06% 19,062
Large MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. Mutual Fund $107,609 0.06% 18,301
Small Symmetry Partners, LLC $103,509 0.05% 18,033
Mid Brooklyn Investment Group $96,931 0.05% 16,485
Small Commonwealth Financial Services, LLC $96,018 0.05% 16,728
Mega FMR LLC $95,231 0.05% 16,196
Mid Fifth Third Wealth Advisors LLC $94,394 0.05% 16,445
Mega WELLS FARGO & COMPANY/MN $93,814 0.05% 15,955
Mid Aquatic Capital Management LLC $87,817 0.05% 14,935
Mega Vanguard Global Advisers, LLC $87,782 0.05% 14,929
Large TUDOR INVESTMENT CORP ET AL $86,965 0.05% 14,790
Large WEALTH ENHANCEMENT ADVISORY SERVICES, LLC $86,863 0.05% 15,133
Key facts CIK 925528 CUSIP 444144109 13F (30d) 25 filings 25 filers Visit website

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