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Disclosery

HDSN HUDSON TECHNOLOGIES INC

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COMMON STOCK (common), issuer CIK 925528

149 managers (150 13F filers) reported a position in HDSN shares at 2025-06-30, 33,331,209 shares in all. 21 filers opened a position and 35 filers sold out during the quarter.

Managers
149
13F filers
150
New
21
Added
44
Reduced
58
Sold out
35
Shares held by filers
33,331,209

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q2 2025

Filers in the available 13F reports with a share position at 2025-06-30, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
Hartree Partners, LP4,000,000$32.5M9.2%+426,85813F-HRTimeline
BlackRock, Inc.in group BlackRock, Inc.2,905,833$23.6M<0.01%-264,38113F-HRTimelineGroup
VANGUARD GROUP INCin group VANGUARD GROUP INC2,480,309$20.1M<0.01%-102,51213F-HRTimelineGroup
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP2,006,966$16.3M<0.01%+56,77113F-HRTimelineGroup
WESTERLY CAPITAL MANAGEMENT, LLC2,000,000$16.2M6.88%+775,00013F-HRTimeline
RENAISSANCE TECHNOLOGIES LLC1,671,850$13.6M0.02%+183,50013F-HRTimeline
NEW SOUTH CAPITAL MANAGEMENT INC1,350,943$11M0.53%-132,77613F-HRTimeline
ARROWSTREET CAPITAL, LIMITED PARTNERSHIPin group ARROWSTREET CAPITAL, LIMITED …1,111,803$9.03M0.01%+563,89913F-HRTimelineGroup
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC1,072,754$8.71M<0.01%+204,69513F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC944,424$7.67M<0.01%-88,66913F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP944,136$7.67M<0.01%-5,85113F-HRTimelineGroup
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA837,971$6.8M<0.01%+805,47813F-HR/ATimelineGroup
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.791,663$6.43M0.01%-499,56213F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY755,548$6.14M<0.01%+187,40213F-HRTimelineGroup
TWO SIGMA INVESTMENTS, LPgroup of 2 filers holding747,379$6.07M-327,917Timeline
JANUS HENDERSON GROUP PLCin group Janus Henderson581,562$4.72M<0.01%+516,51413F-HRTimelineGroup
OAKTREE CAPITAL MANAGEMENT LPin group Oaktree Capital Holdings, LLC562,662$4.57M0.09%new13F-HRTimelineGroup
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC466,725$3.79M<0.01%+125,32213F-HRTimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP429,778$3.49M<0.01%+75,87413F-HRTimelineGroup
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF O…410,099$3.33M0.01%+7,69013F-HRTimeline
683 Capital Management, LLCin group 683 Capital Management, LLC375,000$3.04M0.31%-27,58313F-HRTimelineGroup
Bank of New York Mellon Corpin group Bank of New York Mellon Corp336,700$2.73M<0.01%+151,38513F-HRTimelineGroup
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC330,951$2.69M<0.01%-260,69413F-HRTimelineGroup
JB CAPITAL PARTNERS LP306,200$2.49M0.46%013F-HRTimeline
BRIDGEWAY CAPITAL MANAGEMENT, LLC297,112$2.41M0.06%+19,70013F-HRTimeline
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…258,849$2.1M<0.01%+191,23913F-HRTimelineGroup
MARATHON CAPITAL MANAGEMENT249,450$2.03M0.52%-133,25013F-HRTimeline
WEDGE CAPITAL MANAGEMENT L L P/NC210,302$1.71M0.03%-10,44613F-HRTimeline
KESTREL INVESTMENT MANAGEMENT CORP208,850$1.7M1.01%-9,80013F-HRTimeline
O'SHAUGHNESSY ASSET MANAGEMENT, LLC176,051$1.43M0.01%+66,86413F-HRTimeline
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/174,682$1.42M<0.01%+119,41313F-HRTimelineGroup
North Star Investment Management Corp.164,075$1.33M0.09%new13F-HRTimeline
JACOBS LEVY EQUITY MANAGEMENT, INC161,792$1.31M0.01%+31,02113F-HRTimeline
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO155,675$1.26M<0.01%-484,56313F-HRTimelineGroup
Y-Intercept (Hong Kong) Ltd135,222$1.1M0.03%new13F-HRTimeline
Trexquant Investment LP119,530$971K0.01%+4,80113F-HRTimeline
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…118,876$965K<0.01%-12,35213F-HRTimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC116,656$947K<0.01%-129,10413F-HRTimelineGroup
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co114,941$933K<0.01%-12,78413F-HRTimelineGroup
UBS Group AGin group UBS Group AG107,958$877K<0.01%+23,27813F-HRTimelineGroup
Pacific Ridge Capital Partners, LLC103,580$841K0.2%+24,70813F-HRTimeline
FRANKLIN RESOURCES INCin group Franklin Resources101,149$821K<0.01%-22013F-HRTimelineGroup
STATE OF WISCONSIN INVESTMENT BOARD100,197$814K<0.01%+12,70013F-HRTimeline
SummerHaven Investment Management, LLC96,922$787K0.52%+2,63513F-HRTimeline
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC96,380$783K<0.01%-29,71113F-HRTimelineGroup
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC95,594$776K<0.01%-115,17413F-HRTimelineGroup
Nuveen, LLCin group TIAA93,465$759K<0.01%-22,10913F-HRTimelineGroup
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC93,235$757K<0.01%+53,32513F-HRTimelineGroup
SIMPLEX TRADING, LLC89,430$726K0.02%new13F-HRTimeline
EdgeRock Capital LLC85,297$693K0.22%new13F-HRTimeline
LAZARD ASSET MANAGEMENT LLCin group LAZARD ASSET MANAGEMENT LLC80,811$656K<0.01%+75,07813F-HRTimelineGroup
Thrivent Financial for Lutheransin group Thrivent Financial for Luther…80,470$654K<0.01%013F-HR/ATimelineGroup
Empowered Funds, LLC75,270$611K0.01%new13F-HRTimeline
PRICE T ROWE ASSOCIATES INC /MD/73,706$599K<0.01%+51013F-HRTimeline
Invesco Ltd.in group Invesco Ltd.71,748$583K<0.01%+12,68313F-HRTimelineGroup
VOYA INVESTMENT MANAGEMENT LLCin group VOYA INVESTMENT MANAGEMENT LLC70,535$573K<0.01%+20,99013F-HRTimelineGroup
PINNACLE ASSOCIATES LTD70,000$568K0.01%-5,00013F-HRTimeline
BARCLAYS PLCin group BARCLAYS PLC67,394$547K<0.01%+22,25813F-HR/ATimelineGroup
RHUMBLINE ADVISERS66,424$539K<0.01%-86013F-HRTimeline
STRS OHIO66,000$536K<0.01%-16,70013F-HRTimeline
VICTORY CAPITAL MANAGEMENT INC65,109$529K<0.01%-37,19913F-HRTimeline
Kerrisdale Advisers, LLC64,100$520K0.27%013F-HRTimeline
AVIVA PLCin group AVIVA PLC61,899$503K<0.01%-41,37313F-HRTimelineGroup
ZAZOVE ASSOCIATES LLC56,250$457K0.04%013F-HR/ATimeline
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\56,226$457K<0.01%-8,60113F-HRTimelineGroup
ISTHMUS PARTNERS, LLC48,516$394K0.05%+18,22613F-HRTimeline
ALLIANCEBERNSTEIN L.P.47,880$389K<0.01%+12,60013F-HRTimeline
MARTINGALE ASSET MANAGEMENT L P45,874$372K0.01%-6,73013F-HRTimeline
Quantinno Capital Management LP45,416$369K<0.01%+21,22013F-HRTimeline
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC43,883$356K<0.01%-2,50013F-HRTimelineGroup
OCCUDO QUANTITATIVE STRATEGIES LP43,845$356K0.04%new13F-HRTimeline
Truvestments Capital LLC41,836$340K0.07%-2,36513F-HRTimeline
GRIMES & Co WEALTH MANAGEMENT, LLC41,163$334K0.01%013F-HRTimeline
COMERICA BANK40,803$331K<0.01%013F-HRTimeline
COMMONWEALTH EQUITY SERVICES, LLC38,758$315K<0.01%+12113F-HRTimeline
SEIZERT CAPITAL PARTNERS, LLC38,023$309K0.01%-93213F-HRTimeline
HRT FINANCIAL LP35,248$286K<0.01%new13F-HRTimeline
EXCHANGE TRADED CONCEPTS, LLC31,042$252K<0.01%-9,74113F-HRTimeline
Boston Partnersin group Boston Trust Walden Corp30,808$250K<0.01%-1,46413F-HR/ATimelineGroup
Integrated Advisors Network LLC29,699$241K0.01%new13F-HRTimeline
State of Tennessee, Department of Treas…27,354$222K<0.01%013F-HRTimeline
IEQ CAPITAL, LLC27,239$221K<0.01%-9,64313F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.27,014$219K<0.01%-11713F-HR/ATimelineGroup
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN24,978$203K<0.01%-94413F-HRTimelineGroup
WINTON GROUP Ltdin group WINTON GROUP Ltd24,429$198K0.01%-5,72213F-HRTimelineGroup
MetLife Investment Management, LLCin group MetLife Investment Management…24,338$198K<0.01%+2213F-HRTimelineGroup
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.in group Mirae Asset Global Investment…21,310$173K<0.01%-5,23813F-HRTimelineGroup
INTECH INVESTMENT MANAGEMENT LLC19,213$156K<0.01%-4,57813F-HRTimeline
Legato Capital Management LLC18,479$150K0.02%-93213F-HRTimeline
Brevan Howard Capital Management LPin group Brevan Howard Capital Managem…17,159$139K<0.01%new13F-HRTimelineGroup
EP Wealth Advisors, LLC16,178$131K<0.01%-34113F-HRTimeline
State of Wyoming16,104$131K0.02%-3,42313F-HRTimeline
CITIGROUP INCin group CITIGROUP INC16,082$131K<0.01%-15,36213F-HRTimelineGroup
FIRST TRUST ADVISORS LPin group FIRST TRUST ADVISORS LP15,929$129K<0.01%-8,23713F-HRTimelineGroup
SHERBROOKE PARK ADVISERS LLC15,432$125K0.05%-12,86413F-HRTimeline
RBF Capital, LLC15,193$123K0.01%-22,50913F-HRTimeline
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …13,452$109K<0.01%-3,41713F-HRTimelineGroup
BROWN BROTHERS HARRIMAN & COin group BROWN BROTHERS HARRIMAN & CO13,263$108K<0.01%013F-HRTimelineGroup
Cardinal Point Capital Management ULC12,850$104K0.01%new13F-HRTimeline
Sequoia Financial Advisors, LLC12,825$104K<0.01%-3,70013F-HRTimeline
PEAK6 LLCin group PEAK6 LLC12,804$104K<0.01%new13F-HR/ATimelineGroup
STATE BOARD OF ADMINISTRATION OF FLORID…12,570$102K<0.01%013F-HRTimeline
CWM, LLCin group CWM, LLC12,406$101K<0.01%-1,69613F-HRTimelineGroup
WEALTH ENHANCEMENT ADVISORY SERVICES, L…11,500$96.3K<0.01%-1,35313F-HRTimeline
XTX Topco Ltdin group XTX Topco Ltd11,748$95.4K<0.01%-4,20313F-HRTimelineGroup
1620 INVESTMENT ADVISORS, INC.11,705$95K0.07%-64113F-HRTimeline
WOLVERINE TRADING, LLC11,373$91.2K<0.01%new13F-HRTimeline
Police & Firemen's Retirement System of…8,809$71.5K<0.01%013F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…8,715$70.8K<0.01%+5,57613F-HRTimelineGroup
Versant Capital Management, Inc8,221$66.8K0.01%+5,44113F-HRTimeline
GAMMA Investing LLC6,487$52.7K<0.01%+1,51713F-HRTimeline
GROUP ONE TRADING LLC5,734$46.6K<0.01%new13F-HRTimeline
NEW YORK STATE COMMON RETIREMENT FUND5,270$42.8K<0.01%013F-HR/ATimeline
FMR LLCin group FMR LLC4,846$39.4K<0.01%-2,32713F-HRTimelineGroup
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…4,324$35.1K<0.01%013F-HRTimelineGroup
NEW YORK STATE TEACHERS RETIREMENT SYST…4,016$33K<0.01%013F-HRTimeline
Steward Partners Investment Advisory, L…4,000$32.5K<0.01%013F-HRTimeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS3,998$32.5K<0.01%-21,15313F-HRTimelineGroup
Legal & General Group Plcin group Legal & General Group Plc3,555$28.9K<0.01%-62713F-HRTimelineGroup
Quarry LP3,476$28.2K0.01%new13F-HRTimeline
CALIFORNIA STATE TEACHERS RETIREMENT SY…3,221$26.2K<0.01%013F-HRTimeline
NewEdge Advisors, LLC2,861$23.2K<0.01%013F-HRTimeline
MEEDER ASSET MANAGEMENT INCin group Meeder Advisory Services, Inc.2,565$20.8K<0.01%013F-HRTimelineGroup
Covestor Ltd1,658$13K0.01%-32513F-HRTimeline
AMALGAMATED BANK1,497$12K<0.01%013F-HRTimeline
Sterling Capital Management LLC1,025$8.32K<0.01%+35913F-HR/ATimeline
True Wealth Design, LLC1,019$8.28K<0.01%-1113F-HRTimeline
NISA INVESTMENT ADVISORS, LLC977$7.93K<0.01%+48913F-HRTimeline
NATIONAL BANK OF CANADA /FI/in group NATIONAL BANK OF CANADA /FI/860$6.98K<0.01%new13F-HR/ATimelineGroup
HARBOR CAPITAL ADVISORS, INC.726$6K<0.01%+12613F-HRTimeline
Essential Partners LLC718$5.83K<0.01%13F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…717$5.82K<0.01%+35713F-HRTimelineGroup
Clearstead Advisors, LLC565$4.59K<0.01%new13F-HRTimeline
NORTHWESTERN MUTUAL WEALTH MANAGEMENT COin group NORTHWESTERN MUTUAL INVESTMEN…500$4.06K<0.01%013F-HRTimelineGroup
AlphaQuest LLC479$3.89K<0.01%new13F-HRTimeline
Caitong International Asset Management …472$3.83K<0.01%+23613F-HRTimeline
Private Wealth Management Group, LLC406$3.3K<0.01%013F-HRTimeline
Red Tortoise LLC328$2.66K<0.01%013F-HRTimeline
IFP Advisors, Inc0$1.93K<0.01%new13F-HRTimelineAmount filed as zero, left out of ratios.
First Horizon Advisors, Inc.203$1.65K<0.01%013F-HRTimeline
Anchor Investment Management, LLC200$1.62K<0.01%013F-HRTimeline
JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP132$1.06K<0.01%013F-HRTimelineGroup
Stephens Consulting, LLC126$1.02K<0.01%013F-HRTimeline
FIFTH THIRD BANCORPin group FIFTH THIRD BANK, NATIONAL AS…124$1.01K<0.01%new13F-HRTimelineGroup
Brooklyn Investment Group86$699<0.01%-7513F-HR/ATimeline
Arax Advisory Partners77$626<0.01%new13F-HRTimeline
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…14$114<0.01%+1113F-HRTimelineGroup
SBI Securities Co., Ltd.13$106<0.01%+213F-HRTimeline
CONCOURSE FINANCIAL GROUP SECURITIES, I…0$0013F-HRTimelineValue filed as zero, left out of ratios. Amount filed as zero, left out of ratios.