13F

Stock

Hudson Technologies Inc

Ticker not mapped · held by 159 managers

Reported value

$192M

Holders

159

+22 new · −29 exited

Holders’ est. mark

−$24.8M

Price effect on 133 books still in the name

Largest holder

$22.3M

Hartree Partners, LP

Notable conviction

Share of each notable manager’s 13F book.

Holder count by quarter

Who holds it

Notable only
InvestorSharesValueEst. markChange
Hartree Partners, LP3.8M$22.3M−$3.69MCut−$3.69M
WESTERLY CAPITAL MANAGEMENT, LLC3.17M$18.7M−$2.47MAdded$1.2M
BlackRock, Inc.2.86M$16.8M−$2.78MCut−$3.13M
DIMENSIONAL FUND ADVISORS LP2.15M$12.6M−$1.98MCut−$1.36M
VANGUARD CAPITAL MANAGEMENT LLC1.66M$9.76MHeld
Renaissance Technologies1.5M$8.84M−$1.46MCut−$2.78M
AMERICAN CENTURY COMPANIES INC1.49M$8.75M−$1.35MCut−$750.7K
NEW SOUTH CAPITAL MANAGEMENT INC1.24M$7.3M−$1.2MCut−$1.49M
GEODE CAPITAL MANAGEMENT, LLC948.5K$5.58M−$915KCut−$883.3K
State Street897.9K$5.28M−$867.2KCut−$844.8K
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP881.2K$5.18M−$854.8KCut−$1.55M
CASPIAN CAPITAL LP728.3K$4.28M−$706.5KCut−$706.5K
SEGALL BRYANT & HAMILL, LLC628.3K$3.69M−$174.9KAdded$2.46M
BRIDGEWAY CAPITAL MANAGEMENT, LLC498.1K$2.93M−$366.9KAdded$337.8K
MORGAN STANLEY471.9K$2.78M−$457.8KCut−$2.06M
Citadel412.8K$2.43M−$77.7KAdded$1.88M
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO410.1K$2.41M−$397.8KCut−$397.8K
NORTHERN TRUST CORP399.4K$2.35M−$380.1KCut−$336.2K
Qube Research & Technologies Ltd370.9K$2.18M−$158.8KAdded$1.06M
D. E. Shaw & Co., Inc.358.7K$2.11M−$347.9KCut−$1.88M
Icahn Capital344.3K$2.02M−$329.2KCut−$300.1K
LAZARD ASSET MANAGEMENT LLC325.9K$1.92M−$316.1KCut−$1.04M
683 Capital Management, LLC325K$1.91M−$315.2KCut−$383.8K
JB CAPITAL PARTNERS LP306.2K$1.8M−$297KCut−$297K
Bank of New York Mellon Corp282.4K$1.66M−$274KCut−$570.4K
TWO SIGMA INVESTMENTS, LP272.9K$1.6M−$131.3KAdded$677.3K
VANGUARD PORTFOLIO MANAGEMENT LLC268.5K$1.58MHeld
VANGUARD FIDUCIARY TRUST CO242.9K$1.43MHeld
MARSHALL WACE, LLP219.3K$1.29M−$212.7KCut−$1.9M
KESTREL INVESTMENT MANAGEMENT CORP200.8K$1.18M$1.18MAdded$1.18M
GOLDMAN SACHS GROUP INC197.9K$1.16M−$184.2KCut−$136.9K
Empowered Funds, LLC194.6K$1.14MNew
JACOBS LEVY EQUITY MANAGEMENT, INC178.9K$1.05M−$154.9KCut−$42K
Numerai GP LLC177.3K$1.04MNew
MARATHON CAPITAL MANAGEMENT174.3K$1.03M−$169.1KCut−$175.9K
O'SHAUGHNESSY ASSET MANAGEMENT, LLC170.8K$1M−$165.7KCut−$165.7K
GRIMES & Co WEALTH MANAGEMENT, LLC158.6K$932.7K−$39.9KAdded$650.7K
Russell Investments Group, Ltd.154.4K$907.8K−$134.5KCut−$42.2K
Pacific Ridge Capital Partners, LLC146.9K$863.9K−$114.9KAdded$52.9K
FIRST TRUST ADVISORS LP145.1K$853.1K−$137.7KCut−$119.5K
WEDGE CAPITAL MANAGEMENT L L P/NC144.7K$851K−$140.4KCut−$199.5K
CREDIT AGRICOLE S A140K$823.2K−$135.8KCut−$135.8K
PRUDENTIAL FINANCIAL INC121.7K$715.8K−$67.9KAdded$236.5K
JPMORGAN CHASE & CO117.5K$672.3K−$132.8KCut−$201.5K
BANK OF AMERICA CORP /DE/102.3K$601.7K−$80.9KAdded$30.4K
CHARLES SCHWAB INVESTMENT MANAGEMENT INC102K$599.6K−$98.9KCut−$190.3K
Jump Financial, LLC90.6K$532.7KNew
EdgeRock Capital LLC90.5K$532.2K−$87.8KCut−$87.8K
Inspire Investing, LLC88.1K$517.9K−$66.5KAdded$48.2K
Nuveen, LLC83.7K$492.2K−$80.6KCut−$77.3K
MACKENZIE FINANCIAL CORP82.3K$484.2KNew
STATE OF WISCONSIN INVESTMENT BOARD80.7K$474.5K−$78.3KCut−$208.9K
Invesco Ltd.78.8K$463.3K−$76.4KCut−$201.9K
STRS OHIO77.1K$453.3K−$74.8KCut−$74.8K
Quantinno Capital Management LP76.3K$448.5K−$74KCut−$386.9K
MILLENNIUM MANAGEMENT LLC72.7K$427.4K−$70.5KCut−$867.7K
PINNACLE ASSOCIATES LTD70K$411.6K−$67.9KCut−$67.9K
JANE STREET GROUP, LLC69.9K$410.7K−$67.8KCut−$214.1K
Campbell & CO Investment Adviser LLC61.4K$361.3K−$51.2KCut−$135
VOYA INVESTMENT MANAGEMENT LLC60.9K$357.8K−$59KCut−$61.9K
WINTON GROUP Ltd58.5K$344.1K−$32.1KAdded$117.4K
DEUTSCHE BANK AG\58.3K$342.7K−$51.6KCut−$21.9K
Kerrisdale Advisers, LLC57.6K$338.8K−$55.9KCut−$55.9K
AMERIPRISE FINANCIAL INC57.1K$335.7K−$55.4KCut−$151.8K
RHUMBLINE ADVISERS49.9K$293.4K−$48.4KCut−$58K
ALLIANCEBERNSTEIN L.P.42.2K$289.1K$0Held
CANADA PENSION PLAN INVESTMENT BOARD48K$282.2K−$46.6KCut−$70.5K
ISTHMUS PARTNERS, LLC43.4K$255.2K−$42.1KCut−$71.3K
Schonfeld Strategic Advisors LLC42.7K$251.2KNew
RAYMOND JAMES FINANCIAL INC42.7K$251.1K−$38.4KCut−$20.3K
UBS Group AG42.5K$249.8K−$41.2KCut−$682.5K
Boston Partners40K$235.2K−$20.6KAdded$89.6K
EXCHANGE TRADED CONCEPTS, LLC39.5K$232.3K−$34.3KCut−$9.96K
COMMONWEALTH EQUITY SERVICES, LLC38.6K$227.2K−$37.5KCut−$37.5K
FOX RUN MANAGEMENT, L.L.C.39.4K$225.2KNew
Inspire Advisors, LLC36.4K$214.1K−$14.3KAdded$113.4K
Graham Capital Management, L.P.36K$211.9K−$35KCut−$41.5K
SUSQUEHANNA INTERNATIONAL GROUP, LLP34.2K$200.8K−$33.1KCut−$79.8K
Atlantic Union Bankshares Corp31.3K$183.8KNew
ExodusPoint Capital Management, LP31.1K$183KNew
Vident Advisory, LLC30.9K$181.5KNew
FIFTH THIRD BANCORP30.4K$178.7KNew
State of Wyoming29.1K$171.1K−$28.2KCut−$158.1K
Squarepoint Ops LLC26K$153K−$25.2KCut−$80.9K
MIRABELLA FINANCIAL SERVICES LLP24.7K$145.4KNew
FRANKLIN RESOURCES INC22.6K$132.9K−$21.9KCut−$398.1K
EP Wealth Advisors, LLC21K$123.3K−$19.8KCut−$16.5K
Quadrature Capital Ltd20.7K$121.7KNew
OSAIC HOLDINGS, INC.19.1K$112.1K−$18.5KCut−$44.7K
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.18.3K$107.6K−$17.3KCut−$14.7K
Brooklyn Investment Group16.5K$96.9KNew
Fidelity16.2K$95.2K−$6.22KAdded$51.3K
WELLS FARGO & COMPANY/MN16K$93.8K−$15.5KCut−$206.9K
WEALTH ENHANCEMENT ADVISORY SERVICES, LLC16K$93.4K−$14.2KAdded$6.45K
Aquatic Capital Management LLC14.9K$87.8KNew
Vanguard Global Advisers, LLC14.9K$87.8KHeld
TUDOR INVESTMENT CORP ET AL14.8K$87K−$14.3KCut−$113.3K
Sequoia Financial Advisors, LLC14K$82.3KNew
Centiva Capital, LP13.5K$79.6KNew
BROWN BROTHERS HARRIMAN & CO13.3K$78K−$12.9KCut−$12.9K
Cardinal Point Capital Management ULC12.8K$75.6K−$12.5KCut−$12.5K
Prime Capital Investment Advisors, LLC12.6K$74.1K−$11.4KCut−$6.72K
STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM12.6K$73.9K−$12.2KCut−$19.6K
Truvestments Capital LLC12K$70.4K−$11.6KCut−$32.4K
1620 INVESTMENT ADVISORS, INC.11.4K$66.9K−$10.9KCut−$10.1K
CWM, LLC11.2K$66.1K$66.1KAdded$66.1K
Police & Firemen's Retirement System of New Jersey10.8K$63.6K−$10.5KCut−$10.5K
MANUFACTURERS LIFE INSURANCE COMPANY, THE10.7K$62.7K−$10.3KCut−$20.3K
MANGROVE PARTNERS IM, LLC10.4K$61.2K−$10.1KCut−$35.1K
INTECH INVESTMENT MANAGEMENT LLC10.3K$60.5K−$9.98KCut−$39.5K
MetLife Investment Management, LLC8.55K$50.3K−$8.3KCut−$62.1K
BNP PARIBAS FINANCIAL MARKETS8.27K$48.6K−$8.02KCut−$11.4K
Versant Capital Management, Inc7.37K$43.3K−$7.15KCut−$13.5K
BARCLAYS PLC6.99K$41.1K−$6.78KCut−$424.7K
STANCE CAPITAL LLC6.56K$38.6KNew
JONES FINANCIAL COMPANIES LLLP5.55K$32K−$1Added$32K
NEW YORK STATE COMMON RETIREMENT FUND5.27K$31K−$5.11KCut−$5.11K
Tower Research Capital LLC (TRC)4.53K$26.6K−$1.03KAdded$19.4K
Steward Partners Investment Advisory, LLC4K$23.5K−$3.88KCut−$3.88K
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC3.63K$21.3K−$1.75KAdded$8.97K
GAMMA Investing LLC3.59K$21.1K−$3.48KCut−$24.7K
Legal & General Group Plc3.56K$20.9K−$3.45KCut−$3.45K
Ameritas Investment Partners, Inc.3.21K$18.9K−$3.12KCut−$3.12K
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2.08K$12.2K−$2.02KCut−$3.97K
CITIGROUP INC1.79K$10.5K−$1.73KCut−$14.9K
ROYAL BANK OF CANADA1.68K$10K−$1.03KHeld
Sterling Capital Management LLC1.27K$7.49K−$1.24KCut−$245.8K
NATIONAL BANK OF CANADA /FI/1.26K$7.4K−$1.24KCut−$1.24K
BARD ASSOCIATES INC1K$5.88K−$970Cut−$970
NISA INVESTMENT ADVISORS, LLC977$5.75K−$947Cut−$947
Parallel Advisors, LLC935$5.5KNew
SIMPLEX TRADING, LLC886$5.21K−$860Cut−$2.74K
True Wealth Design, LLC823$4.84K−$798Cut−$1.95K
Rockefeller Capital Management L.P.783$4.6K−$153Added$3.52K
Essential Partners LLC697$4.1K−$676Cut−$813
EverSource Wealth Advisors, LLC554$3.26K−$538Cut−$778
FINANCIAL CONSULATE, INC500$2.94K−$485Cut−$485
NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO500$2.94K−$485Cut−$485
Optiver Holding B.V.382$2.25K−$340Cut−$152
Red Tortoise LLC328$1.93K−$318Cut−$318
Private Wealth Management Group, LLC299$1.76K−$290Cut−$1.02K
KBC Group NV123K$723−$120Cut−$120
PNC Financial Services Group, Inc.83$488−$3Added$467
PRICE T ROWE ASSOCIATES INC /MD/80K$471−$71Cut−$34
US BANCORP \DE\56$329New
Hilton Head Capital Partners, LLC50$294−$48Cut−$48
Allworth Financial LP43$253−$14Added$157
Farther Finance Advisors, LLC40$232−$42Cut−$90
Sunbelt Securities, Inc.31$182−$26Cut−$3
Kilter Group LLC20$118New
SBI Securities Co., Ltd.12$71−$11Cut−$11
Thrivent Financial for Lutherans11.1K$65−$11Cut−$122
Arax Advisory Partners10$59−$10Cut−$469
State of Alaska, Department of Revenue4.14K$24−$4Cut−$4
NEW YORK STATE TEACHERS RETIREMENT SYSTEM3.52K$21−$3Cut−$3
LSV ASSET MANAGEMENT3.4K$20New
Caitong International Asset Management Co., Ltd3$18New
Covestor Ltd1.15K$7−$0Added$1
HARBOR CAPITAL ADVISORS, INC.783$5$0Added$1

Who left

Positions as of Q1 2026. 13F filings arrive up to 45 days after quarter-end and omit shorts. Values are quarter-end marks, as filed. Estimated mark is the price effect on shares still held — not realized P&L or investment advice.