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13F-HR/A filed by SIMPLEX TRADING, LLC

SIMPLEX TRADING, LLC filed this 13F-HR/A for the quarter ended 2021-12-31, filed 2022-02-23, with 10,651 holding rows worth $99,050,233,000.

Accession
0001488542-22-000005
Filed
2022-02-23
Accepted by EDGAR
acceptance time not in the bulk data set
Ingested
Source
SEC quarterly data set

Original filing

13F report for Q4 2021

A holdings report, amendment of type restatement, 11,474 entries on the cover page, a total value of $99,050,233,000 stated on the cover page (in dollars after the unit check, H1), rows summing to $99,044,558,000 with VALUE read as thousands by filing date, 13F file number 028-16834. The quarter's positions are built on this report. The resolved quarter.

The information table after summing rows of one CUSIP and put or call (H4), with the CUSIP and issuer name as filed. Values in dollars after the unit check (method).

Issuer as filedCUSIPClassAmountValueValue read asType
GOLDEN MINERALS CO381119906Cmn200$0thousands by filing datecallValue filed as zero, left out of ratios.
GOLDEN MINERALS CO381119956Cmn1,400$0thousands by filing dateputValue filed as zero, left out of ratios.
INTEVAC INC461148908COM100$0thousands by filing datecallValue filed as zero, left out of ratios.
FIRST MIDWEST BANCORP DEL320867954COM500$0thousands by filing dateputValue filed as zero, left out of ratios.
ACELRX PHARMACEUTICALS INC00444T950COM800$0thousands by filing dateputValue filed as zero, left out of ratios.
AMPIO PHARMACEUTICALS INC03209T959COM900$0thousands by filing dateputValue filed as zero, left out of ratios.
XINYUAN REAL ESTATE CO LTD98417P955SPONS ADR500$0thousands by filing dateputValue filed as zero, left out of ratios.
CHINA XD PLASTICS CO LTD16948F907COM2,400$0thousands by filing datecallValue filed as zero, left out of ratios.
CHINA XD PLASTICS CO LTD16948F957COM100$0thousands by filing dateputValue filed as zero, left out of ratios.
IMPAC MTG HLDGS INC45254P958COM NEW200$0thousands by filing dateputValue filed as zero, left out of ratios.
APPLIED THERAPEUTICS INC03828A951COM100$0thousands by filing dateputValue filed as zero, left out of ratios.
ENVELA CORP29402E952PUT100$0thousands by filing dateputValue filed as zero, left out of ratios.
MAXCYTE INC57777K906CALL100$0thousands by filing datecallValue filed as zero, left out of ratios.
CLEARSIGN TECHNOLOGIES CORP185064952PUT200$0thousands by filing dateputValue filed as zero, left out of ratios.
QUIPT HOME MEDICAL CORP74880P954PUT100$0thousands by filing dateputValue filed as zero, left out of ratios.
DYADIC INTL INC DEL26745T951COM100$0thousands by filing dateputValue filed as zero, left out of ratios.
EMX RTY CORP26873J907COM400$0thousands by filing datecallValue filed as zero, left out of ratios.
GULF IS FABRICATION INC402307902COM200$0thousands by filing datecallValue filed as zero, left out of ratios.
HAMILTON BEACH BRANDS HLDG C40701T904COM CL A200$0thousands by filing datecallValue filed as zero, left out of ratios.
MERSANA THERAPEUTICS INC59045L956COM100$0thousands by filing dateputValue filed as zero, left out of ratios.
SUMMIT HOTEL PPTYS INC866082950COM100$0thousands by filing dateputValue filed as zero, left out of ratios.
ENOCHIAN BIOSCIENCES INC29350E954PUT100$0thousands by filing dateputValue filed as zero, left out of ratios.
CRAWFORD & CO224633906CALL100$0thousands by filing datecallValue filed as zero, left out of ratios.
CRAWFORD & CO224633956PUT500$0thousands by filing dateputValue filed as zero, left out of ratios.
SOUTHWEST GAS HOLDINGS INC844895902CALL100$0thousands by filing datecallValue filed as zero, left out of ratios.
QUMU CORP749063953PUT100$0thousands by filing dateputValue filed as zero, left out of ratios.
QUTOUTIAO INC74915J906CALL100$0thousands by filing datecallValue filed as zero, left out of ratios.
GOLDMAN SACHS ETF TR381430955PUT100$0thousands by filing dateputValue filed as zero, left out of ratios.
REEDS INC758338957PUT100$0thousands by filing dateputValue filed as zero, left out of ratios.
NEXTCURE INC65343E958PUT100$0thousands by filing dateputValue filed as zero, left out of ratios.
FIVE STAR SENIOR LIVING INC33832D905CALL300$0thousands by filing datecallValue filed as zero, left out of ratios.
FIVE STAR SENIOR LIVING INC33832D955PUT3,000$0thousands by filing dateputValue filed as zero, left out of ratios.
TRAVELZOO89421Q955PUT100$0thousands by filing dateputValue filed as zero, left out of ratios.
KVH INDS INC482738951PUT100$0thousands by filing dateputValue filed as zero, left out of ratios.
VYNE THERAPEUTICS INC92941V959PUT400$0thousands by filing dateputValue filed as zero, left out of ratios.
COMSOVEREIGN HLDG CORP205650903CALL1,300$0thousands by filing datecallValue filed as zero, left out of ratios.
CONCERT PHARMACEUTICALS INC206022905CALL100$0thousands by filing datecallValue filed as zero, left out of ratios.
CONCERT PHARMACEUTICALS INC206022955PUT200$0thousands by filing dateputValue filed as zero, left out of ratios.
CONNECT BIOPHARMA HLDGS LTD207523901CALL100$0thousands by filing datecallValue filed as zero, left out of ratios.
CONTRAFECT CORP212326300COM200$0thousands by filing dateValue filed as zero, left out of ratios.
STATERA BIOPHARMA INC857561904CALL200$0thousands by filing datecallValue filed as zero, left out of ratios.
IMARA INC45249V107COM298$0thousands by filing dateValue filed as zero, left out of ratios.
IMARA INC45249V907CALL300$0thousands by filing datecallValue filed as zero, left out of ratios.
REPRO MED SYS INC759910952PUT200$0thousands by filing dateputValue filed as zero, left out of ratios.
LIMINAL BIOSCIENCES INC53272L103COM670$0thousands by filing dateValue filed as zero, left out of ratios.
LAZYDAYS HLDGS INC52110H900CALL100$0thousands by filing datecallValue filed as zero, left out of ratios.
LAZYDAYS HLDGS INC52110H950PUT100$0thousands by filing dateputValue filed as zero, left out of ratios.
MERCURITY FINTECH HOLDING IN58936H109SPONSORED ADS156$0thousands by filing dateValue filed as zero, left out of ratios.
MERCURITY FINTECH HOLDING IN58936H959PUT200$0thousands by filing dateputValue filed as zero, left out of ratios.
OBLONG INC674434955PUT200$0thousands by filing dateputValue filed as zero, left out of ratios.
CYTOSORBENTS CORP23283X956PUT100$0thousands by filing dateputValue filed as zero, left out of ratios.
ARCADIA BIOSCIENCES INC039014954PUT100$0thousands by filing dateputValue filed as zero, left out of ratios.
AYTU BIOPHARMA INC054754954PUT600$0thousands by filing dateputValue filed as zero, left out of ratios.
CLPS INCORPORATIONG31642904CALL100$0thousands by filing datecallValue filed as zero, left out of ratios.
MEAT TECH 3D LTD583435102COM73$0thousands by filing dateValue filed as zero, left out of ratios.
VIRIOS THERAPEUTICS INC92829J104COM185$0thousands by filing dateValue filed as zero, left out of ratios.
EYENOVIA INC30234E954PUT100$0thousands by filing dateputValue filed as zero, left out of ratios.
BIOLINERX LTD09071M955PUT100$0thousands by filing dateputValue filed as zero, left out of ratios.
LEJU HLDGS LTD50187J108SPONSORED ADS532$0thousands by filing dateValue filed as zero, left out of ratios.
CITIUS PHARMACEUTICALS INC17322U957COM NEW600$0thousands by filing dateputValue filed as zero, left out of ratios.
17 ED & TECHNOLOGY GROUP INC81807M205ADS94$0thousands by filing dateValue filed as zero, left out of ratios.
VIRIOS THERAPEUTICS INC92829J904CALL100$0thousands by filing datecallValue filed as zero, left out of ratios.
S&W SEED CO785135954PUT300$0thousands by filing dateputValue filed as zero, left out of ratios.
JUPAI HLDGS LTD48205B107ADS256$0thousands by filing dateValue filed as zero, left out of ratios.
REGULUS THERAPEUTICS INC75915K200COM NEW1,049$0thousands by filing dateValue filed as zero, left out of ratios.
ONCOSEC MED INC68234L306COM476$0thousands by filing dateValue filed as zero, left out of ratios.
TREVENA INC89532E109COM100$0thousands by filing dateValue filed as zero, left out of ratios.
BAUDAX BIO INC07160F107COM1,627$0thousands by filing dateValue filed as zero, left out of ratios.
ARCA BIOPHARMA INC00211Y906COM300$0thousands by filing datecallValue filed as zero, left out of ratios.
ALIGOS THERAPEUTICS INC01626L955PUT100$0thousands by filing dateputValue filed as zero, left out of ratios.
DRAGANFLY INC.26142Q905CALL500$0thousands by filing datecallValue filed as zero, left out of ratios.
BENSON HILL INC082490953PUT100$0thousands by filing dateputValue filed as zero, left out of ratios.
FINANCE OF AMERICA COMPAN31738L907CALL200$0thousands by filing datecallValue filed as zero, left out of ratios.
BIOCARDIA INC09060U907CALL100$0thousands by filing datecallValue filed as zero, left out of ratios.
CIDARA THERAPEUTICS INC171757957PUT600$0thousands by filing dateputValue filed as zero, left out of ratios.
ALMADEN MINERALS LTD020283955PUT1,700$0thousands by filing dateputValue filed as zero, left out of ratios.
CASA SYS INC14713L902CALL100$0thousands by filing datecallValue filed as zero, left out of ratios.
JASPER THERAPEUTICS INC471871953PUT100$0thousands by filing dateputValue filed as zero, left out of ratios.
BETTER THERAPEUTICS INC08773T904CALL200$0thousands by filing datecallValue filed as zero, left out of ratios.
TITAN PHARMACEUTICALS INC DE888314956PUT100$0thousands by filing dateputValue filed as zero, left out of ratios.
COMPUTER TASK GROUP INC205477902CALL100$0thousands by filing datecallValue filed as zero, left out of ratios.
HYCROFT MINING HOLDING CORP44862P959COM CL A400$0thousands by filing dateputValue filed as zero, left out of ratios.
EQRX INC26886C957COM100$0thousands by filing dateputValue filed as zero, left out of ratios.
ARMSTRONG FLOORING INC04238R106COM261$0thousands by filing dateValue filed as zero, left out of ratios.
17 ED & TECHNOLOGY GROUP INC81807M955PUT200$0thousands by filing dateputValue filed as zero, left out of ratios.
ACER THERAPEUTICS INC00444P908CALL400$0thousands by filing datecallValue filed as zero, left out of ratios.
PARATEK PHARMACEUTICALS INC699374952PUT200$0thousands by filing dateputValue filed as zero, left out of ratios.
CYCLACEL PHARMACEUTICALS INC23254L903CALL100$0thousands by filing datecallValue filed as zero, left out of ratios.
CATALYST BIOSCIENCES INC14888D958PUT500$0thousands by filing dateputValue filed as zero, left out of ratios.
VASCULAR BIOGENICS LTDM96883959PUT200$0thousands by filing dateputValue filed as zero, left out of ratios.
ADIAL PHARMACEUTICALS INC00688A956PUT100$0thousands by filing dateputValue filed as zero, left out of ratios.
ORGANIGRAM HLDGS INC68620P951PUT300$0thousands by filing dateputValue filed as zero, left out of ratios.
PRECIPIO INC74019L903CALL500$0thousands by filing datecallValue filed as zero, left out of ratios.
MOLECULAR TEMPLATES INC608550959PUT200$0thousands by filing dateputValue filed as zero, left out of ratios.
AMERICAN FIN TR INC02607T959PUT500$0thousands by filing dateputValue filed as zero, left out of ratios.
OTONOMO TECHNOLOGIES LTDM7571L953PUT100$0thousands by filing dateputValue filed as zero, left out of ratios.
BENITEC BIOPHARMA INC08205P900CALL100$0thousands by filing datecallValue filed as zero, left out of ratios.
WIRELESS TELECOM GROUP INC976524908CALL200$0thousands by filing datecallValue filed as zero, left out of ratios.
XENETIC BIOSCIENCES INC984015903CALL500$0thousands by filing datecallValue filed as zero, left out of ratios.
AGROFRESH SOLUTIONS00856G959PUT400$0thousands by filing dateputValue filed as zero, left out of ratios.
HEPION PHARMACEUTICALS INC426897954PUT700$0thousands by filing dateputValue filed as zero, left out of ratios.
ASPIRA WOMENS HEALTH INC04537Y959PUT100$0thousands by filing dateputValue filed as zero, left out of ratios.
SIGILON THERAPEUTICS INC82657L907CALL200$0thousands by filing datecallValue filed as zero, left out of ratios.
ADAMIS PHARMACEUTICALS CORP00547W958PUT1,400$0thousands by filing dateputValue filed as zero, left out of ratios.
ONCORUS INC68236R953PUT100$0thousands by filing dateputValue filed as zero, left out of ratios.
JOUNCE THERAPEUTICS INC481116951PUT100$0thousands by filing dateputValue filed as zero, left out of ratios.
APTOSE BIOSCIENCES INC03835T950PUT100$0thousands by filing dateputValue filed as zero, left out of ratios.
POLARITYTE INC731094108COM344$0thousands by filing dateValue filed as zero, left out of ratios.
ANPAC BIO MED SCIENCE CO LTD03635R107cs44$0thousands by filing dateValue filed as zero, left out of ratios.
HENNESSY CAPITAL INVS CORP V42589T957PUT100$0thousands by filing dateputValue filed as zero, left out of ratios.
SECOO HLDG LTD81367P101ADR631$0thousands by filing dateValue filed as zero, left out of ratios.
FEDNAT HLDG CO31431B959PUT100$0thousands by filing dateputValue filed as zero, left out of ratios.
GROM SOCIAL ENTERPRISES INC39878L958PUT200$0thousands by filing dateputValue filed as zero, left out of ratios.
QUOTIENT LTDG73268957PUT200$0thousands by filing dateputValue filed as zero, left out of ratios.
AIRNET TECHNOLOGY INC00941Q954PUT500$0thousands by filing dateputValue filed as zero, left out of ratios.
AKOUOS INC00973J951PUT100$0thousands by filing dateputValue filed as zero, left out of ratios.
ALLEGIANCE BANCSHARES INC01748H907CALL100$0thousands by filing datecallValue filed as zero, left out of ratios.
AVANTI ACQUISITION CORPG0682V959PUT100$0thousands by filing dateputValue filed as zero, left out of ratios.
HEALTH ASSURN ACQUISITION CO42226W959PUT100$0thousands by filing dateputValue filed as zero, left out of ratios.
RYB ED INC74979W901CALL100$0thousands by filing datecallValue filed as zero, left out of ratios.
IMV INC44974L953PUT800$0thousands by filing dateputValue filed as zero, left out of ratios.
DURECT CORP266605954PUT400$0thousands by filing dateputValue filed as zero, left out of ratios.
ONCOSEC MED INC68234L956PUT400$0thousands by filing dateputValue filed as zero, left out of ratios.
SECOO HLDG LTD81367P901CALL500$0thousands by filing datecallValue filed as zero, left out of ratios.
SECOO HLDG LTD81367P951PUT200$0thousands by filing dateputValue filed as zero, left out of ratios.
NEWAGE INC650194953PUT100$0thousands by filing dateputValue filed as zero, left out of ratios.
NEUROBO PHARMACEUTICALS INC64132R107COM140$0thousands by filing dateValue filed as zero, left out of ratios.
METROMILE INC591697907COM400$0thousands by filing datecallValue filed as zero, left out of ratios.
ABEONA THERAPEUTICS INC00289Y957PUT200$0thousands by filing dateputValue filed as zero, left out of ratios.
NEUROBO PHARMACEUTICALS INC64132R907CALL200$0thousands by filing datecallValue filed as zero, left out of ratios.
NEUROBO PHARMACEUTICALS INC64132R957PUT100$0thousands by filing dateputValue filed as zero, left out of ratios.
SOLENO THERAPEUTICS INC834203950PUT300$0thousands by filing dateputValue filed as zero, left out of ratios.
GENOCEA BIOSCIENCES INC372427951PUT200$0thousands by filing dateputValue filed as zero, left out of ratios.
JUPAI HLDGS LTD48205B907CALL800$0thousands by filing datecallValue filed as zero, left out of ratios.
ION GEOPHYSICAL462044957COM1,000$0thousands by filing dateputValue filed as zero, left out of ratios.
TANZANIAN GOLD CORP87601A907COM1,200$0thousands by filing datecallValue filed as zero, left out of ratios.
POLARITYTE INC731094908COM100$0thousands by filing datecallValue filed as zero, left out of ratios.
UTSTARCOM HOLDINGS CORPG9310A954PUT500$0thousands by filing dateputValue filed as zero, left out of ratios.
POLARITYTE INC731094958PUT700$0thousands by filing dateputValue filed as zero, left out of ratios.
LEJU HLDGS LTD50187J958PUT100$0thousands by filing dateputValue filed as zero, left out of ratios.
RISE ED CAYMAN LTD76761L952PUT400$0thousands by filing dateputValue filed as zero, left out of ratios.
PHOENIX NEW MEDIA LTD71910C953PUT400$0thousands by filing dateputValue filed as zero, left out of ratios.
REGULUS THERAPEUTICS INC75915K950PUT1,800$0thousands by filing dateputValue filed as zero, left out of ratios.
OASIS MIDSTREAM PARTNERS LP67420T956PUT100$0thousands by filing dateputValue filed as zero, left out of ratios.
CITIC CAPITAL ACQUISITION COG21513959PUT1,000$0thousands by filing dateputValue filed as zero, left out of ratios.
DSP GROUPS INC23332B956PUT100$0thousands by filing dateputValue filed as zero, left out of ratios.
CASTLIGHT HEALTH INC14862Q950PUT100$0thousands by filing dateputValue filed as zero, left out of ratios.
PUXIN LTD74704P908CALL1,000$0thousands by filing datecallValue filed as zero, left out of ratios.
IVANHOE CAPITAL ACQUISTIN COG4R87P954PUT300$0thousands by filing dateputValue filed as zero, left out of ratios.
SOLITON INC834251950PUT400$0thousands by filing dateputValue filed as zero, left out of ratios.
BAUDAX BIO INC07160F957PUT1,700$0thousands by filing dateputValue filed as zero, left out of ratios.

Amendment chain

FilingRoleFiledAcceptedIngested
13F-HR 0001488542-22-000002 superseded2022-02-04acceptance time not in the bulk data set
13F-HR/A 0001488542-22-000005this filing2022-02-23acceptance time not in the bulk data set