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Disclosery

HDSN HUDSON TECHNOLOGIES INC

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COMMON STOCK (common), issuer CIK 925528

169 managers (170 13F filers) reported a position in HDSN shares at 2025-09-30, 33,268,390 shares in all. 42 filers opened a position and 19 filers sold out during the quarter.

Managers
169
13F filers
170
New
42
Added
45
Reduced
50
Sold out
19
Shares held by filers
33,268,390

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, Q3 2025

Filers in the available 13F reports with a share position at 2025-09-30, 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, LP3,800,000$37.7M13.1%-200,00013F-HRTimeline
BlackRock, Inc.in group BlackRock, Inc.2,863,273$28.4M<0.01%-42,56013F-HRTimelineGroup
VANGUARD GROUP INCin group VANGUARD GROUP INC2,373,181$23.6M<0.01%-107,12813F-HRTimelineGroup
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP2,009,481$20M<0.01%+2,51513F-HRTimelineGroup
WESTERLY CAPITAL MANAGEMENT, LLC1,890,000$18.8M5.95%-110,00013F-HRTimeline
RENAISSANCE TECHNOLOGIES LLC1,796,850$17.8M0.02%+125,00013F-HRTimeline
NEW SOUTH CAPITAL MANAGEMENT INC1,334,337$13.2M0.6%-16,60613F-HRTimeline
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC1,273,890$12.6M0.01%+201,13613F-HRTimelineGroup
ARROWSTREET CAPITAL, LIMITED PARTNERSHIPin group ARROWSTREET CAPITAL, LIMITED …1,111,803$11M0.01%013F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC954,426$9.48M<0.01%+10,00213F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP893,855$8.88M<0.01%-50,28113F-HRTimelineGroup
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.821,809$8.16M0.01%+30,14613F-HRTimelineGroup
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA802,872$7.97M<0.01%-35,09913F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY792,727$7.87M<0.01%+37,17913F-HR/ATimelineGroup
TWO SIGMA INVESTMENTS, LPgroup of 2 filers holding417,921$4.15M-329,458Timeline
NORTHERN TRUST CORPin group NORTHERN TRUST CORP416,507$4.14M<0.01%-13,27113F-HRTimelineGroup
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF O…410,099$4.07M0.01%013F-HRTimeline
BRIDGEWAY CAPITAL MANAGEMENT, LLC360,648$3.58M0.08%+63,53613F-HRTimeline
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC355,958$3.53M<0.01%-110,76713F-HRTimelineGroup
683 Capital Management, LLCin group 683 Capital Management, LLC350,000$3.48M0.32%-25,00013F-HRTimelineGroup
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC345,284$3.43M<0.01%+14,33313F-HRTimelineGroup
Bank of New York Mellon Corpin group Bank of New York Mellon Corp338,390$3.36M<0.01%+1,69013F-HRTimelineGroup
JB CAPITAL PARTNERS LP306,200$3.04M0.51%013F-HRTimeline
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/279,172$2.77M<0.01%+104,49013F-HR/ATimelineGroup
LAZARD ASSET MANAGEMENT LLCin group LAZARD ASSET MANAGEMENT LLC260,805$2.59M<0.01%+179,99413F-HRTimelineGroup
LOS ANGELES CAPITAL MANAGEMENT LLC231,192$2.3M0.01%new13F-HRTimeline
JACOBS LEVY EQUITY MANAGEMENT, INC222,945$2.21M0.01%+61,15313F-HRTimeline
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC211,945$2.1M<0.01%new13F-HRTimelineGroup
Trexquant Investment LP210,905$2.09M0.02%+91,37513F-HRTimeline
KESTREL INVESTMENT MANAGEMENT CORP208,850$2.07M1.17%013F-HRTimeline
TUDOR INVESTMENT CORP ET AL207,249$2.06M0.01%new13F-HR/ATimeline
Cubist Systematic Strategies, LLC205,932$2.04M0.03%new13F-HRTimeline
MARATHON CAPITAL MANAGEMENT194,450$1.93M0.44%-55,00013F-HRTimeline
O'SHAUGHNESSY ASSET MANAGEMENT, LLC175,888$1.75M0.01%-16313F-HRTimeline
Allspring Global Investments Holdings, …in group Allspring Global Investments …175,311$1.7M<0.01%new13F-HRTimelineGroup
North Star Investment Management Corp.170,075$1.69M0.11%+6,00013F-HRTimeline
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC164,460$1.63M<0.01%+47,80413F-HRTimelineGroup
Empowered Funds, LLC158,806$1.58M0.02%+83,53613F-HRTimeline
WEDGE CAPITAL MANAGEMENT L L P/NC155,068$1.54M0.03%-55,23413F-HRTimeline
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…149,659$1.49M<0.01%+30,78313F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO142,898$1.42M<0.01%-12,77713F-HR/ATimelineGroup
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC142,521$1.42M<0.01%+49,28613F-HRTimelineGroup
FIRST TRUST ADVISORS LPin group FIRST TRUST ADVISORS LP137,807$1.37M<0.01%+121,87813F-HRTimelineGroup
UBS Group AGin group UBS Group AG133,820$1.33M<0.01%+25,86213F-HRTimelineGroup
MARSHALL WACE, LLPin group MARSHALL WACE, LLP125,587$1.25M<0.01%new13F-HRTimelineGroup
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co114,892$1.14M<0.01%-4913F-HRTimelineGroup
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC114,386$1.14M<0.01%+18,79213F-HRTimelineGroup
FRANKLIN RESOURCES INCin group Franklin Resources105,061$1.04M<0.01%+3,91213F-HRTimelineGroup
Pacific Ridge Capital Partners, LLC103,580$1.03M0.23%013F-HRTimeline
Qube Research & Technologies Ltd88,696$881K<0.01%new13F-HRTimeline
EdgeRock Capital LLC85,297$847K0.24%013F-HRTimeline
Nuveen, LLCin group TIAA83,140$826K<0.01%-10,32513F-HRTimelineGroup
Invesco Ltd.in group Invesco Ltd.78,784$782K<0.01%+7,03613F-HRTimelineGroup
PRICE T ROWE ASSOCIATES INC /MD/73,706$732K<0.01%013F-HRTimeline
STATE OF WISCONSIN INVESTMENT BOARD72,827$723K<0.01%-27,37013F-HRTimeline
PINNACLE ASSOCIATES LTD70,000$695K0.01%013F-HRTimeline
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC68,875$684K<0.01%-27,50513F-HRTimelineGroup
WINTON GROUP Ltdin group WINTON GROUP Ltd64,486$640K0.02%+40,05713F-HRTimelineGroup
Kerrisdale Advisers, LLC64,100$637K0.33%013F-HRTimeline
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\62,499$621K<0.01%+6,27313F-HRTimelineGroup
RHUMBLINE ADVISERS61,409$610K<0.01%-5,01513F-HRTimeline
BARCLAYS PLCin group BARCLAYS PLC60,548$601K<0.01%-6,84613F-HR/ATimelineGroup
VOYA INVESTMENT MANAGEMENT LLCin group VOYA INVESTMENT MANAGEMENT LLC60,207$598K<0.01%-10,32813F-HRTimelineGroup
STRS OHIO59,600$592K<0.01%-6,40013F-HRTimeline
BOOTHBAY FUND MANAGEMENT, LLC57,030$566K0.01%new13F-HRTimeline
Quantinno Capital Management LP55,335$549K<0.01%+9,91913F-HRTimeline
ZAZOVE ASSOCIATES LLC50,000$496K0.05%-6,25013F-HRTimeline
Campbell & CO Investment Adviser LLC49,218$489K0.04%new13F-HRTimeline
ISTHMUS PARTNERS, LLC48,516$482K0.11%013F-HRTimeline
AVIVA PLCin group AVIVA PLC47,525$472K<0.01%-14,37413F-HRTimelineGroup
Inspire Investing, LLCin group Inspire Investing, LLC46,423$461K0.04%new13F-HRTimelineGroup
ALLIANCEBERNSTEIN L.P.42,210$419K<0.01%-5,67013F-HRTimeline
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC41,939$416K<0.01%-1,94413F-HRTimelineGroup
GRIMES & Co WEALTH MANAGEMENT, LLC41,163$409K0.01%013F-HRTimeline
PRINCIPAL FINANCIAL GROUP INCin group PRINCIPAL FINANCIAL GROUP INC40,833$405K<0.01%new13F-HRTimelineGroup
COMMONWEALTH EQUITY SERVICES, LLC40,518$402K<0.01%+1,76013F-HRTimeline
State of Wyoming40,047$398K0.05%+23,94313F-HRTimeline
SEIZERT CAPITAL PARTNERS, LLC38,023$378K0.02%013F-HRTimeline
Sterling Capital Management LLC37,415$372K0.01%+36,39013F-HRTimeline
Graham Capital Management, L.P.33,729$335K0.01%new13F-HRTimeline
OCCUDO QUANTITATIVE STRATEGIES LP32,933$327K0.04%-10,91213F-HRTimeline
PharVision Advisers, LLC31,799$316K0.18%new13F-HRTimeline
COMERICA BANK31,614$314K<0.01%-9,18913F-HRTimeline
MARTINGALE ASSET MANAGEMENT L P31,545$313K0.01%-14,32913F-HRTimeline
Hillsdale Investment Management Inc.31,000$308K0.01%new13F-HRTimeline
IEQ CAPITAL, LLC30,783$306K<0.01%+3,54413F-HRTimeline
FourThought Financial Partners, LLC29,687$295K0.03%new13F-HRTimeline
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN29,508$293K<0.01%+4,53013F-HRTimelineGroup
Integrated Advisors Network LLC29,106$289K0.01%-59313F-HRTimeline
Aristides Capital LLC28,877$287K0.08%new13F-HRTimeline
EXCHANGE TRADED CONCEPTS, LLC27,990$278K<0.01%-3,05213F-HRTimeline
Thrivent Financial for Lutheransin group Thrivent Financial for Luther…27,278$271K<0.01%-53,19213F-HRTimelineGroup
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.26,232$266K<0.01%-78213F-HRTimelineGroup
Aquatic Capital Management LLC25,856$257K<0.01%new13F-HRTimeline
Boston Partnersin group Boston Trust Walden Corp23,876$237K<0.01%-6,93213F-HRTimelineGroup
ALGERT GLOBAL LLC23,765$236K<0.01%new13F-HR/ATimeline
Balyasny Asset Management L.P.in group Balyasny Asset Management23,674$235K<0.01%new13F-HRTimelineGroup
Jump Financial, LLCin group Jump Financial, LLC23,260$231K<0.01%new13F-HR/ATimelineGroup
Schonfeld Strategic Advisors LLC21,008$209K<0.01%new13F-HRTimeline
Verition Fund Management LLC19,628$195K<0.01%new13F-HRTimeline
INTECH INVESTMENT MANAGEMENT LLC19,213$191K<0.01%013F-HRTimeline
Legato Capital Management LLC18,479$183K0.02%013F-HRTimeline
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.in group Mirae Asset Global Investment…18,283$182K<0.01%-3,02713F-HRTimelineGroup
Cornerstone Investment Partners, LLC17,167$170K0.01%new13F-HRTimeline
MetLife Investment Management, LLCin group MetLife Investment Management…16,283$162K<0.01%-8,05513F-HRTimelineGroup
Quantbot Technologies LP15,955$158K<0.01%new13F-HRTimeline
SIMPLEX TRADING, LLC15,867$157K<0.01%-73,56313F-HRTimeline
Brevan Howard Capital Management LPin group Brevan Howard Capital Managem…15,704$156K<0.01%-1,45513F-HRTimelineGroup
Truvestments Capital LLC15,134$150K0.03%-26,70213F-HRTimeline
Creative Planningin group Creative Planning14,426$143K<0.01%new13F-HRTimelineGroup
XTX Topco Ltdin group XTX Topco Ltd14,233$141K0.01%+2,48513F-HRTimelineGroup
CWM, LLCin group CWM, LLC14,102$140K<0.01%+1,69613F-HRTimelineGroup
MERCER GLOBAL ADVISORS INC /ADV13,301$132K<0.01%new13F-HRTimeline
BROWN BROTHERS HARRIMAN & COin group BROWN BROTHERS HARRIMAN & CO13,263$132K<0.01%013F-HRTimelineGroup
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …13,203$131K<0.01%-24913F-HRTimelineGroup
FOX RUN MANAGEMENT, L.L.C.13,126$130K0.02%new13F-HRTimeline
Cardinal Point Capital Management ULC12,850$128K0.01%013F-HRTimeline
Independent Advisor Alliance12,786$127K<0.01%new13F-HRTimeline
STATE BOARD OF ADMINISTRATION OF FLORID…12,570$125K<0.01%013F-HRTimeline
WEALTH ENHANCEMENT ADVISORY SERVICES, L…12,747$115K<0.01%+1,24713F-HRTimeline
SG Americas Securities, LLC11,575$115K<0.01%new13F-HRTimeline
1620 INVESTMENT ADVISORS, INC.11,486$114K0.08%-21913F-HRTimeline
Police & Firemen's Retirement System of…10,817$107K<0.01%+2,00813F-HRTimeline
Versant Capital Management, Inc8,221$81.6K0.01%013F-HRTimeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS7,530$74.8K<0.01%+3,53213F-HRTimelineGroup
Walleye Capital LLCin group Walleye Capital LLC6,578$65.3K<0.01%new13F-HRTimelineGroup
GAMMA Investing LLC6,487$64.4K<0.01%013F-HRTimeline
Quarry LP5,281$52.4K0.01%+1,80513F-HRTimeline
NEW YORK STATE COMMON RETIREMENT FUND5,270$52.3K<0.01%013F-HRTimeline
FMR LLCin group FMR LLC4,956$49.2K<0.01%+11013F-HRTimelineGroup
NKCFO LLC4,740$47K0.01%new13F-HRTimeline
Point72 Asset Management, L.P.in group Point72 Asset Management, L.P.4,300$42.7K<0.01%new13F-HRTimelineGroup
Steward Partners Investment Advisory, L…4,000$39.7K<0.01%013F-HRTimeline
CITIGROUP INCin group CITIGROUP INC3,750$37.2K<0.01%-12,33213F-HRTimelineGroup
Legal & General Group Plcin group Legal & General Group Plc3,555$35.3K<0.01%013F-HRTimelineGroup
NEW YORK STATE TEACHERS RETIREMENT SYST…3,518$35K<0.01%-49813F-HRTimeline
Arax Advisory Partners3,273$32.5K<0.01%+3,19613F-HRTimeline
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…3,215$31.9K<0.01%-1,10913F-HRTimelineGroup
MEEDER ASSET MANAGEMENT INCin group Meeder Advisory Services, Inc.2,565$25.5K<0.01%013F-HRTimelineGroup
Point72 (DIFC) Ltd2,512$24.9K<0.01%new13F-HRTimeline
CALIFORNIA STATE TEACHERS RETIREMENT SY…2,424$24.1K<0.01%-79713F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…2,182$21.7K<0.01%-6,53313F-HRTimelineGroup
Point72 Asia (Singapore) Pte. Ltd.2,007$19.9K<0.01%new13F-HRTimeline
AMALGAMATED BANK1,497$15K<0.01%013F-HRTimeline
NATIONAL BANK OF CANADA /FI/in group NATIONAL BANK OF CANADA /FI/1,231$12.2K<0.01%+37113F-HRTimelineGroup
True Wealth Design, LLC1,047$10.4K<0.01%+2813F-HRTimeline
Covestor Ltd1,001$10K0.01%-65713F-HRTimeline
Rialto Wealth Management, LLC1,000$9.93K<0.01%new13F-HRTimeline
NISA INVESTMENT ADVISORS, LLC977$9.7K<0.01%013F-HRTimeline
Essential Partners LLC874$8.68K<0.01%+15613F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…764$7.59K<0.01%+4713F-HRTimelineGroup
HARBOR CAPITAL ADVISORS, INC.658$7K<0.01%-6813F-HRTimeline
Clearstead Advisors, LLC573$5.69K<0.01%+813F-HRTimeline
Farther Finance Advisors, LLC505$5.01K<0.01%new13F-HRTimeline
NORTHWESTERN MUTUAL WEALTH MANAGEMENT COin group NORTHWESTERN MUTUAL INVESTMEN…500$4.96K<0.01%013F-HRTimelineGroup
WHITTIER TRUST CO444$4.2K<0.01%new13F-HRTimeline
Private Wealth Management Group, LLC406$4.03K<0.01%013F-HRTimeline
C M BIDWELL & ASSOCIATES LTD400$3.97K<0.01%new13F-HRTimeline
Optiver Holding B.V.in group Optiver Holding B.V.350$3.48K<0.01%new13F-HRTimelineGroup
Red Tortoise LLC328$3.26K<0.01%013F-HRTimeline
JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP132$1.3K<0.01%013F-HRTimelineGroup
Stephens Consulting, LLC126$1.25K<0.01%013F-HRTimeline
FIFTH THIRD BANCORPin group FIFTH THIRD BANK, NATIONAL AS…124$1.23K<0.01%013F-HRTimelineGroup
Allworth Financial LP113$1.12K<0.01%new13F-HRTimeline
Sunbelt Securities, Inc.27$268<0.01%new13F-HRTimeline
IFP Advisors, Inc27$268<0.01%+2713F-HR/ATimeline
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…14$139<0.01%013F-HRTimelineGroup
SBI Securities Co., Ltd.13$129<0.01%013F-HRTimeline
BESSEMER GROUP INCin group BESSEMER GROUP INC33$00%new13F-HRTimelineGroupValue filed as zero, left out of ratios.