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13F-HR filed by O'Connor Alternative Investments LLC

O'Connor Alternative Investments LLC filed this 13F-HR for the quarter ended 2026-03-31, filed 2026-05-15, with 128 holding rows worth $1,167,160,563.

Accession
0002081629-26-000003
Filed
2026-05-15
Accepted by EDGAR
acceptance time not in the bulk data set
Ingested
Source
SEC quarterly data set

Original filing

13F report for Q1 2026

A holdings report, 128 entries on the cover page, a total value of $1,167,160,563 stated on the cover page (in dollars after the unit check, H1), rows summing to $1,167,160,563 with VALUE read as dollars as filed, 13F file number 028-26950. 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
HOLOGIC INC436440101COM3,118,178$235,703,075dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
AIR LEASE CORP00912X302CL A2,860,079$185,733,530dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
AMICUS THERAPEUTICS INC03152W109COM8,444,992$122,114,584dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
SEALED AIR CORP NEW81211K100COM2,214,582$93,123,173dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
ONESTREAM INC68278B107CL A3,186,804$76,483,296dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
Day One Biopharmaceuticals Inc23954D109Common Stock1,867,553$40,040,336dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
SNOWFLAKE INC833445AD1NOTE 10/025,000,000$30,787,500dollars as filedprincipalThe filing omitted confidential holdings, a later amendment may add them.
DUKE ENERGY CORP26441CBY0CONV BND25,000,000$27,665,000dollars as filedprincipalThe filing omitted confidential holdings, a later amendment may add them.
CARNIVAL PLC ADS14365C103ADR982,643$25,322,710dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
CLOUDFLARE INC18915MAC1NOTE 8/121,500,000$25,245,300dollars as filedprincipalThe filing omitted confidential holdings, a later amendment may add them.
LIVE NATION ENTERTAINMENT IN538034BA6NOTE 3.125% 1/115,000,000$22,885,500dollars as filedprincipalThe filing omitted confidential holdings, a later amendment may add them.
ON SEMICONDUCTOR CORP682189AU9NOTE 0.500% 3/020,000,000$19,684,000dollars as filedprincipalThe filing omitted confidential holdings, a later amendment may add them.
AKAMAI TECHNOLOGIES INC00971TAN1NOTE 1.125% 2/115,000,000$17,151,000dollars as filedprincipalThe filing omitted confidential holdings, a later amendment may add them.
KLARNA GROUP PLCG5279N105COMMON STOCK1,127,170$14,754,655dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
Alphabet Inc. Reg. Shares C02079K107COM50,250$14,414,715dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
VANECK ETF TRUST92189F676COM27,500$10,543,500dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
ATRIUM THERAPEUTICS INC COM04965N104Stock578,011$7,728,007dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
FOX CORP35137L204CL B COM137,780$7,316,118dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
JENA ACQUISITION CORP IIG5093B105USD CL A ORD SHS700,000$7,154,000dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
EGH ACQUISITION CORP.G2946P100SHS CL A500,000$5,105,000dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
KENSINGTON CAP ACQUISITIONG5235S123UNIT 99/99/9999500,000$5,020,000dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
ONEIM ACQUISITION CORPG6S74K106ORD SHS CL A500,000$4,980,000dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
GORES HLDGS X INCG4002F109SHS CL A474,941$4,853,897dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
CANTOR EQUITY PARTNERS V INCG1828S109SHS CL A S450,000$4,545,000dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
ZILLOW GROUP INC CL C CAP STK98954M200Stock107,930$4,466,143dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
AGRICULTURE & NAT SOL ACQ COG0131Y100SHS CL A384,160$4,333,325dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
TRAILBLAZER ACQUISITION CORPG9009S103ORD SHS CL A400,000$4,020,000dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
Trg Latin Amer Acquis Corp Unit 02/20/2031G9037S125Unit350,000$3,482,500dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
LIVE OAK ACQUISITION CORP VG5509P102CL A SHS324,923$3,379,199dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
NEWHOLD INVT CORP IIIG6486E102ORD SHS CL A324,604$3,372,636dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
WESTERN DIGITAL CORP958102105COM12,000$3,245,880dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
OAKTREE ACQUISITION CORP IIIG6717R104SHS CL A300,000$3,174,000dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
ARMADA ACQUISITION CORP IIG0R38G120UNIT 05/21/2030300,000$2,997,000dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
CLEARWAY ENERGY INC-CLASS A NE18539C105CL A75,000$2,937,750dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
NORWEGIAN CRUISE LINE HLDGS LT SHSG66721104Stock145,200$2,715,240dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
GP-ACT III ACQUISITION CORPG4035N103CL A250,000$2,710,000dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
ACCEL ENTERTAINMENT INC00436Q106COMMON STOCK246,728$2,691,802dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
STELLAR V CAP CORPG8475V103SHS CL A250,000$2,617,500dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
COLLECTIVE ACQUISITION CORPG2867S109SHS CL A250,000$2,582,500dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
BLUE WTR ACQUISITION CORP. IG1368E106ORD SHS CL A250,000$2,572,500dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
NEW PROVIDENCE ACQUISITION CG6476A102USD CL A ORD SHS250,000$2,565,000dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
CARTESIAN GROWTH CORP IIIG19307100COM CL A250,000$2,562,500dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
THAYER VENTURES ACQ CORP IIG87890102CL A250,000$2,557,500dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
TALON CAP CORPG86652107ORD SHS CL A250,000$2,550,000dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
SOLARIUS CAPITAL ACQU CORPG82617104SHS CL A250,000$2,545,000dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
PIONEER ACQUISITION I CORPG7117W107CL A ORD SHS250,000$2,540,000dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
OXLEY BRIDGE ACQ LTDG6858G107USD CL A ORD SHS250,000$2,532,500dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
M3-BRIGADE ACQUISITION VI COG63221108ORD SHS CL A250,000$2,513,750dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
HIGHVIEW MERGER CORPG4569C101ORD SH CL A250,000$2,512,500dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
CSLM DIGITA ASSET ACQ CORP IG2584S101USD CL A ORD SHS250,000$2,510,000dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
Qdro Acquisition Corp Unit 01/28/2031G7310E128Unit250,000$2,480,000dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
Oracle Corporation68389X105COM16,425$2,416,282dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
UNDER ARMOUR INC904311107CL A400,000$2,364,000dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
BOLD EAGLE ACQUISITION CORPG2003N105CL A219,217$2,314,932dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
RANGE CAP ACQUISITION CORP IG7375J103CL A ORD SHS225,000$2,250,000dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
LIBERTY GLOBAL LTDG61188127COM CL C186,100$2,182,953dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
ARCHIMEDES TECH SPAC PARTNERG04537109ORD SHS200,000$2,087,000dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
GESHER ACQUISITION CORP. IIG3852D107USD CL A ORD SHS200,000$2,072,000dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
COHEN CIRCLE ACQUISIT CORP IG2254C121SHS CL A200,000$2,044,000dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
BLUE ACQUISITION CORP.G1331A108ORD SHS CL A200,000$2,042,000dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
CAL REDWOOD ACQUISITION CORPG17564108COM CL A200,000$2,037,000dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
FORTRESS VALUE ACQU CORP VG3645T104ORD SHS CL A200,000$2,004,000dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
CANTOR EQUITY PARTNERS IV ING1828E100SHS CL A174,570$1,778,868dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
AXIOM INTELLIGENCE AC CORP 1G0750N104ORD SHS CL A175,000$1,772,750dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
OTG ACQUISITION CORP. IG6791A100ORD CL A175,000$1,760,500dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
ARTIUS II ACQUISITION INCG0509J115SHS CL A160,000$1,652,800dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
CENTURION ACQUISITION CORPG20315100SHS CL A150,000$1,616,250dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
ANDRETTI ACQUISITION CORP IIG26745102ORD SHS CL A150,000$1,598,250dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
MOUNTAIN LAKE ACQUISITION-AG6301B101Common149,912$1,578,573dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
ARMADA ACQUISITION CORP IIG0R38G104COM CL A150,000$1,546,500dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
SOULPOWER ACQUISITION CORPG82745103USD CL A ORD SHS150,000$1,537,500dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
PYROPHYTE ACQUISITION CORP.G7309T102CL A SHS150,000$1,517,250dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
EQV VENTURES AC CORP. IIG3106Q102ORD SHS CL A150,000$1,513,500dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
FUTURECREST ACQUISITION CORPG3730U107CL A ORD SHS150,000$1,509,000dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
AA MISSION ACQUISITION CORPG1000S109ORD SHS CL A150,000$1,507,500dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
VIKING ACQUISITION CORP IG9582G104ORD CL A150,000$1,497,750dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
D. BORAL ARC ACQ I CORP.G2616F101SHS CL A125,000$1,265,000dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
CHENGHE ACQUISITION III COG2086N105ORD SHS CL A125,000$1,260,625dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
GALATA ACQUISITION CORP IIG3R25N108ORD SHS CL A125,000$1,248,750dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
SILVER PEGASUS ACQUISITION CG8192J102SHS CL A120,000$1,220,400dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
LEGATO MERGER CORP IIIG5451A103ORD SHS100,000$1,099,000dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
JACKSON ACQUISITION CO IIG4992A110COM SHS CL A100,000$1,059,000dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
ALDEL FINL II INCG01558108CL A100,000$1,057,000dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
ROMAN DBDR ACQUISITION CORPG7633M104ORD SHS CL A100,000$1,047,000dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
RITHM ACQUISITION CORPG75751100CL A100,000$1,040,000dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
NEW AMER ACQUISITION I CORP023634207UNIT 99/99/9999100,000$1,038,000dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
COPLEY ACQUISITION CORPG24243100ORD SHS CL A100,000$1,031,500dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
CANTOR EQUITY PARTNERS III IG1828A108SHS CL A100,000$1,031,000dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
SIZZLE ACQUISITION CORP. IIG8193F109USD CL A ORD SHS100,000$1,026,000dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
BERTO ACQUISITION CORPG1051H101ORD SHS100,000$1,025,000dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
OYSTER ENTERPRISES II ACQUISG6861F104ORD SHS CL A100,000$1,022,000dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
INFLECTION PT ACQUISITION COG47875102CL A ORD SHS100,000$1,021,000dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
WEN ACQUISITION CORPG9R39C103COM CL A100,000$1,018,000dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
SPRING VY ACQUISITION CORP IG8377R101SHS CL A100,000$1,016,000dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
1RT ACQUISITION CORP.G6757R105USD CL A ORD SHS100,000$1,014,000dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
FIGX CAP ACQUISITION CORP.G3473K100USD CL A ORD SHS100,000$1,013,000dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
Willow Lane Acquisition Crp Unit 01/27/2031G9675K129Unit100,000$1,010,000dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
MCKINLEY ACQUISITION CORPG6005T101SHS CL A100,000$1,006,000dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
Spartacus Acquisition Corp I Unit 01/30/2031G8303R126Unit100,000$1,003,500dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
APEX TREAS CORPG04104108ORD SHS CL A100,000$999,000dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
BTC DEV CORPG0701G109ORD SHS CL A100,000$999,000dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
IRON HORSE ACQUISIT II CORP46283H202UNIT 07/11/2030100,000$996,000dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
BITCOIN INFRASTRUCTURE ACQUIG1143H101USD CL A ORD SHS100,000$990,000dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
INDIGO ACQUISITION CORPG4791J106ORD SHS75,000$760,500dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
Spark I Acquisition Corp Ord ShsG8316B100Common Stock66,832$755,870dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
AMERICAN EXCEPTIONALISM ACQUG0273J101ORD CL A50,000$541,500dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
REAL ASSET ACQUISITION CORPG73944103SHS CL A50,000$524,500dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
BAIN CAP GSS INVT CORPG0R78B106ORD CL A50,000$505,600dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
AMERICAN AIRLINES GROUP INC COM02376R102Stock2,133,300$461,328dollars as filedputThe filing omitted confidential holdings, a later amendment may add them.
SPY78462F103SHS115,000$257,325dollars as filedputThe filing omitted confidential holdings, a later amendment may add them.
BLOOM ENERGY CORP093712107COM15,000$245,250dollars as filedcallThe filing omitted confidential holdings, a later amendment may add them.
SKILLSOFT CORP83066P309CL A41,692$178,859dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
SNOWFLAKE INC COM SHS833445109Stock20,000$122,000dollars as filedcallThe filing omitted confidential holdings, a later amendment may add them.
GEN DIGITAL INC668771116RIGHT 99/99/9999250,516$120,248dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
Bold Eagle Acquisition Corp Right 10/11/2029G2003N121SPACS400,000$91,920dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
LUCID GROUP INC COM NEW549498202Stock12,700$69,618dollars as filedputThe filing omitted confidential holdings, a later amendment may add them.
BLUE ACQUISITION CORP.G1331A116RIGHT 06/11/2030200,000$64,740dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
ROYALTY MGMT HLDG CORP02369M110*W EXP 10/31/202221,686$53,936dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
TRAILBLAZER ACQUISITION CORPG9009S111*W EXP 09/30/203133,333$50,693dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
PALO ALTO NETWORKS INC697435105COM10,000$25,800dollars as filedcallThe filing omitted confidential holdings, a later amendment may add them.
MCKINLEY ACQUISITION CORPG6005T119RIGHT 07/25/2030100,000$11,010dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
INDIGO ACQUISITION CORPG4791J114RIGHT 04/02/202775,000$10,320dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
Cid Holdco Inc W Exp 12/31/202171756117SPAC Combination282,640$7,490dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
Scage Future W Exp 05/15/203G7840J118SPAC Combination127,590$6,533dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
TEVOGEN BIO HLDGS INC88165K119*W EXP 02/14/202181,387$6,149dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
Multisensor Ai Holdings Inc W Exp 12/19/202456948116SPAC Combination142,585$5,589dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
BOREALIS FOODS INC09973D113*W EXP 02/07/20270,030$4,671dollars as filedThe filing omitted confidential holdings, a later amendment may add them.
INVESCO QQQ TR46090E103COM26,000$1,560dollars as filedputThe filing omitted confidential holdings, a later amendment may add them.

Amendment chain

FilingRoleFiledAcceptedIngested
13F-HR 0002081629-26-000003this filing2026-05-15acceptance time not in the bulk data set
13F-HR/A 0002081629-26-000006 added2026-08-14acceptance time not in the bulk data set