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UBS OCONNOR LLC

AUM: $14.94 B
13-F Portfolio Value: $1.39 B
Last 13-F Filed: Q4 2023
Concentration in top 10: 26.8%
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Stock Company % Portfolio Shares Held Market Value Change in Shares % Change Quarter End Price Source
ABCMABCAM PLC-5,664,354Exited13F
AESAES CORP-422,400Exited13F
ENERACCRETION-231,102Exited13F
ENERRACCRETION-97,876Exited13F
SLRNACELYRIN I (Call)-14,500Exited13F
ACRSACLARIS TH-68,014Exited13F
ACRSACLARIS TH (Call)-70,000Exited13F
ATVIACTIVISION-11,360,963Exited13F
ABOSACUMEN PHA-69,538Exited13F
AFRMAFFIRM HLD (PRN)-7,500,000Exited13F
AEMAGNICO EAG-100,000Exited13F
ALGNALIGN TECH-5,300Exited13F
ALVRALLOVIR IN-230,000Exited13F
ALLYALLY FINL (Put)-175,000Exited13F
ALNYALNYLAM PH (Call)-14,000Exited13F
ALNYALNYLAM PH (Put)-10,000Exited13F
AYXALTERYX IN-155,000Exited13F
AALAMERICAN A-50,000Exited13F
AMSCAMERICAN S (Call)-30,500Exited13F
AMLXAMYLYX PHA-35,000Exited13F
ANNXANNEXON IN (Call)-300,000Exited13F
APLSAPELLIS PH (Put)-15,000Exited13F
AAOIAPPLIED OP (PRN)-15,000,000Exited13F
SFRTWAPPRECIATE-230,109Exited13F
ARVNARVINAS IN (Call)-60,000Exited13F
ACAHATLANTIC C-90,632Exited13F
AVTRAVANTOR IN-14,470Exited13F
BWXTBWX TECHNO-51,700Exited13F
BRDBEARD ENER-475,816Exited13F
BABOEING CO-41,700Exited13F
CFIVCF ACQUISI-546,835Exited13F
CFCF INDS HL-42,500Exited13F
BNLBROADSTONE-155,900Exited13F
CABACABALETTA-48,332Exited13F
CZRCAESARS EN (Call)-10,000Exited13F
CTRECARETRUST-18,800Exited13F
CCCHEMOURS C-39,671Exited13F
CHHCHOICE HOT-83,274Exited13F
CCVICHURCHILL-771,960Exited13F
CCVIWSCHURCHILL-92,080Exited13F
CCVCHURCHILL-490,267Exited13F
CLINCLEAN EART-222,542Exited13F
CRNXCRINETICS (Put)-35,000Exited13F
CCICROWN CAST-5,700Exited13F
CTMXCYTOMX THE-259,965Exited13F
DECKDECKERS OU-7,280Exited13F
DENDENBURY IN-1,931,731Exited13F
DKNGDRAFTKINGS-350,000Exited13F
EPREPR PPTYS-151,439Exited13F
JETSETF SER SO (Put)-250,000Exited13F
EMNEASTMAN CH-74,950Exited13F
EIGREIGER BIOP-393,975Exited13F
ELANELANCO ANI-54,176Exited13F
EAELECTRONIC-25,000Exited13F
EDRENDEAVOR G-20,000Exited13F
ETSYETSY INC-23,500Exited13F
EXPEEXPEDIA GR-3,000Exited13F
FDXFEDEX CORP-17,600Exited13F
FSRXWFINSERV AC-305,055Exited13F
FLTFLEETCOR T-19,000Exited13F
FBINFORTUNE BR-75,150Exited13F
GLPGGALAPAGOS-10,888Exited13F
GRTXGALERA THE-302,506Exited13F
GNTXGENTEX COR-111,500Exited13F
GKOSGLAUKOS CO-20,471Exited13F
GSKGSK PLC-209,552Exited13F
HNRAHNR ACQUIS-222,542Exited13F
HROWHARROW INC-32,508Exited13F
HPPHUDSON PAC-169,200Exited13F
INCYINCYTE COR (Call)-70,000Exited13F
INBXINHIBRX IN-33,448Exited13F
INTCINTEL CORP-7,500Exited13F
INVHINVITATION-310,777Exited13F
EWZISHARES IN (Call)-500,000Exited13F
IWMISHARES TR (Put)-350,000Exited13F
HYGISHARES TR (Put)-1,400,000Exited13F
ITOSITEOS THER-59,764Exited13F
JAQCJUPITER AC-120,173Exited13F
KWEBKRANESHARE-343,720Exited13F
LADRLADDER CAP-152,300Exited13F
LCALANDCADIA-50,644Exited13F
LTHMLIVENT COR-267,200Exited13F
LYFTLYFT INC-10,000Exited13F
MFAMFA FINL I-226,894Exited13F
MRTWSMARTI TECH-115,551Exited13F
MTZMASTEC INC-26,295Exited13F
EPRTESSENTIAL-25,000Exited13F
MELIMERCADOLIB-4,000Exited13F
MRKMERCK & CO-5,790Exited13F
INKTMINK THERA-21,590Exited13F
MRTXMIRATI THE-64,698Exited13F
MORFMORPHIC HL (Call)-15,000Exited13F
NETCNABORS ENE-462,203Exited13F
NATINATIONAL I-4,043,391Exited13F
NIRWWNEAR INTEL-225,128Exited13F
NRDYNERDY INC-50,000Exited13F
NEWRNEW RELIC-3,313,068Exited13F
NXGNNEXTGEN HE-1,008,379Exited13F
NKENIKE INC-80,000Exited13F
NVONOVO-NORDI (Call)-20,000Exited13F
BURUWSNUBURU INC-230,109Exited13F
NTRNUTRIEN LT-150,600Exited13F
OLITWOMNILIT AC-47,932Exited13F
OMFONEMAIN HL (Call)-32,500Exited13F
ORTXORCHARD TH-71,010Exited13F
ORICORIC PHARM (Put)-100,000Exited13F
PRAXPRAXIS PRE-583,544Exited13F
PACIPROOF ACQU-453,158Exited13F
QCOMQUALCOMM I-72,500Exited13F
RPTRPT REALTY-484,323Exited13F
RLAYRELAY THER (Call)-80,000Exited13F
REPLREPLIMUNE (Call)-40,000Exited13F
RYTMRHYTHM PHA-30,000Exited13F
RYTMRHYTHM PHA (Call)-45,000Exited13F
RNGRINGCENTRA-9,155Exited13F
ROKUROKU INC-43,972Exited13F
SRPTSAREPTA TH (Call)-10,000Exited13F
SGENSEAGEN INC-1,750,496Exited13F
XLVSELECT SEC (Call)-80,000Exited13F
SVCSERVICE PP (Put)-146,300Exited13F
SUACWSSHOULDERUP-288,877Exited13F
SILKSILK RD ME (Call)-30,000Exited13F
SWKSSKYWORKS S-87,506Exited13F
SNOWSNOWFLAKE-3,098Exited13F
SONOSONOS INC-32,500Exited13F
CXMSPRINKLR I-150,000Exited13F
SNPSSYNOPSYS I-9,575Exited13F
GPCRSTRUCTURE-12,218Exited13F
SYBXSYNLOGIC I-40,548Exited13F
TARSTARSUS PHA-55,262Exited13F
TDCTERADATA C-5,000Exited13F
TTEKTETRA TECH-21,995Exited13F
TMOTHERMO FIS-2,950Exited13F
THOTHOR INDS (Put)-75,000Exited13F
TBCPWTHUNDER BR-138,065Exited13F
TRIPTRIPADVISO-35,000Exited13F
USBUS BANCORP (Put)-170,000Exited13F
UBERUBER TECHN-25,000Exited13F
VALEVALE S A-765,000Exited13F
VLOVALERO ENE (Put)-40,000Exited13F
SMHVANECK ETF (Put)-105,000Exited13F
VTYXVENTYX BIO-45,463Exited13F
VTYXVENTYX BIO (Put)-35,000Exited13F
VIRVIR BIOTEC-38,000Exited13F
VMWVMWARE INC-2,123,453Exited13F
XPOXPO INC-110,744Exited13F
ALORWALSP ORCHI-62,909Exited13F
BFACBATTERY FU-226,579Exited13F
BIOSBIOPLUS AC-453,158Exited13F
BIOSWBIOPLUS AC-182,071Exited13F
BOACWSBLUESCAPE-226,519Exited13F
PRPCCC NEUBERG-400,371Exited13F
PRPCWSCC NEUBERG-73,635Exited13F
MITACOLISEUM A-231,102Exited13F
DISAWDISRUPTIVE-84,138Exited13F
FRBNFORBION EU-181,263Exited13F
GPACWGLOBAL PAR-37,521Exited13F
GRABGRAB HOLDI-885,000Exited13F
PRLHPEARL HOLD-226,579Exited13F
HZNPHORIZON TH-7,664,245Exited13F
ICLRICON PLC-2,045Exited13F
IFINWSINFINT ACQ-115,551Exited13F
JAZZJAZZ PHARM-7,014Exited13F
JCIJOHNSON CT-78,906Exited13F
LINLINDE PLC-6,800Exited13F
APTVAPTIV PLC-70,150Exited13F
NVCRNOVOCURE L (Call)-25,000Exited13F
PCCTPERCEPTION-192,601Exited13F
PCCTWPERCEPTION-231,101Exited13F
SEDASDCL EDGE-231,102Exited13F
TRTLTORTOISEEC-462,203Exited13F
ZURAZURA BIO L-167,167Exited13F
NAMSNEWAMSTERD-45,000Exited13F
PRQRPROQR THRA-189,328Exited13F