HUDSON TECHNOLOGIES INC

Ticker: HDSN CUSIP: 444144109 Class: Common Stock

Note: Option positions (PUT/CALL) are excluded.

InstitutionSharesValue ($000)
Hartree Partners, LP3,800,000$26,030
BlackRock, Inc.2,913,869$19,960
WESTERLY CAPITAL MANAGEMENT, LLC2,550,000$17,468
VANGUARD GROUP INC2,338,710$16,020
DIMENSIONAL FUND ADVISORS LP2,043,151$13,996
RENAISSANCE TECHNOLOGIES LLC1,697,250$11,626
AMERICAN CENTURY COMPANIES INC1,386,683$9,499
NEW SOUTH CAPITAL MANAGEMENT INC1,283,528$8,792
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP982,819$6,732
GEODE CAPITAL MANAGEMENT, LLC943,154$6,462
STATE STREET CORP894,064$6,124
CASPIAN CAPITAL LP728,306$4,989
MORGAN STANLEY705,577$4,833
D. E. Shaw & Co., Inc.582,780$3,992
MARSHALL WACE, LLP465,130$3,186
LAZARD ASSET MANAGEMENT LLC431,769$2,958
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO410,099$2,809
NORTHERN TRUST CORP391,889$2,684
BRIDGEWAY CAPITAL MANAGEMENT, LLC378,255$2,591
AQR CAPITAL MANAGEMENT LLC339,352$2,325
683 Capital Management, LLC335,000$2,295
Bank of New York Mellon Corp325,707$2,231
JB CAPITAL PARTNERS LP306,200$2,097
LOS ANGELES CAPITAL MANAGEMENT LLC221,182$2,033
ACADIAN ASSET MANAGEMENT LLC220,612$2
KESTREL INVESTMENT MANAGEMENT CORP201,750$1
GOLDMAN SACHS GROUP INC189,896$1,301
MILLENNIUM MANAGEMENT LLC189,061$1,295
SEGALL BRYANT & HAMILL, LLC180,354$1,235
MARATHON CAPITAL MANAGEMENT175,325$1,201
O'SHAUGHNESSY ASSET MANAGEMENT, LLC170,826$1,170
TWO SIGMA ADVISERS, LP167,300$1,146
Qube Research & Technologies Ltd163,703$1,121
JACOBS LEVY EQUITY MANAGEMENT, INC159,728$1,094
WEDGE CAPITAL MANAGEMENT L L P/NC153,364$1,051
FIRST TRUST ADVISORS LP141,978$973
CREDIT AGRICOLE S A140,000$959
Russell Investments Group, Ltd.138,687$950
UBS Group AG136,088$932
TWO SIGMA INVESTMENTS, LP135,400$927
JPMORGAN CHASE & CO127,571$874
KBC Group NV123,001$1
Quantinno Capital Management LP121,947$835
Pacific Ridge Capital Partners, LLC118,406$811
CHARLES SCHWAB INVESTMENT MANAGEMENT INC115,316$790
Point72 Asset Management, L.P.113,263$776
STATE OF WISCONSIN INVESTMENT BOARD99,764$683
Invesco Ltd.97,108$665
JANE STREET GROUP, LLC91,216$625
EdgeRock Capital LLC90,517$620
BANK OF AMERICA CORP /DE/83,404$571
Nuveen, LLC83,140$570
CITADEL ADVISORS LLC80,083$549
FRANKLIN RESOURCES INC77,522$531
STRS OHIO77,100$528
PRICE T ROWE ASSOCIATES INC /MD/73,706$1
AMERIPRISE FINANCIAL INC71,167$487
PINNACLE ASSOCIATES LTD70,000$480
PRUDENTIAL FINANCIAL INC69,970$479
Inspire Investing, LLC68,583$470
BARCLAYS PLC67,991$466
AVIVA PLC67,703$464
Voya Investment Management LLC61,273$420
Trexquant Investment LP59,580$408
PRINCIPAL FINANCIAL GROUP INC59,073$405
Kerrisdale Advisers, LLC57,622$395
DEUTSCHE BANK AG\53,225$365
Campbell & CO Investment Adviser LLC52,762$361
CANADA PENSION PLAN INVESTMENT BOARD51,500$353
RHUMBLINE ADVISERS51,307$351
ZAZOVE ASSOCIATES LLC50,000$343
State of Wyoming48,062$329
ISTHMUS PARTNERS, LLC47,664$326
Hillsdale Investment Management Inc.44,000$301
WELLS FARGO & COMPANY/MN43,900$301
ALGERT GLOBAL LLC43,105$0
ALLIANCEBERNSTEIN L.P.42,210$289
GRIMES & COMPANY, INC.41,163$282
SUSQUEHANNA INTERNATIONAL GROUP, LLP40,968$281
RAYMOND JAMES FINANCIAL INC39,609$271
COMMONWEALTH EQUITY SERVICES, LLC38,650$265
SEIZERT CAPITAL PARTNERS, LLC38,023$260
Graham Capital Management, L.P.36,985$253
Sterling Capital Management LLC36,978$253
EXCHANGE TRADED CONCEPTS, LLC35,366$242
Squarepoint Ops LLC34,137$234
WINTON GROUP Ltd33,098$227
COMERICA BANK31,614$217
MARTINGALE ASSET MANAGEMENT L P31,238$214
PRELUDE CAPITAL MANAGEMENT, LLC31,200$214
TUDOR INVESTMENT CORP ET AL29,237$200
XTX Topco Ltd29,131$200
Thrivent Financial for Lutherans27,278$0
Aristides Capital LLC26,720$183
Integrated Advisors Network LLC25,281$173
IEQ CAPITAL, LLC24,012$164
OSAIC HOLDINGS, INC.22,882$157
Brandywine Global Investment Management, LLC22,600$155
Boston Partners21,256$146
EP Wealth Advisors, LLC20,417$140
67 other institutions387,777$2,249
Total (167 institutions)32,977,927$221,292