O'Connor Alternative Investments Llc
Institutional manager — quarterly 13F holdings, Q ending 2026-03-31
Reported value
$1.17B
Q ending 2026-03-31
Prior quarter
–
Q ending 2025-12-31
Change
– QoQ
Positions
128
reported holdings
Largest positions
Top 100 of 128 reported positions by value, Q ending 2026-03-31. A manager can hold shares, calls and puts on the same security at once — such positions are listed as separate rows. Type: Shares = common stock, Put/Call = option positions (valued at the underlying), Principal = debt. Tickers link to stock pages where covered.
| Holding | Ticker | Type | Value ▼ | Shares |
|---|---|---|---|---|
| Hologic In | HOLX | Shares | $235.7M | 3.1M |
| Air Lease | AVLA | Shares | $185.7M | 2.9M |
| Amicus The | AM6 | Shares | $122.1M | 8.4M |
| Sealed Air | SDA | Shares | $93.1M | 2.2M |
| Onestream | K4F | Shares | $76.5M | 3.2M |
| Day One Bi | DAWNGBX | Shares | $40.0M | 1.9M |
| Snowflake | SNOW 0 10/01/29 | Principal | $30.8M | 25.0M |
| Duke Energ | DUK 4.125 04/15/26 | Principal | $27.7M | 25.0M |
| Carnival P | CUKN | Shares | $25.3M | 983K |
| Cloudflare | NET 0 08/15/26 | Principal | $25.2M | 21.5M |
| Live Natio | LYV 3.125 01/15/29 | Principal | $22.9M | 15.0M |
| On Semicon | ON 0.5 03/01/29 | Principal | $19.7M | 20.0M |
| Akamai Tec | AKAM 1.125 02/15/29 | Principal | $17.2M | 15.0M |
| Klarna Gro | Shares | $14.8M | 1.1M | |
| Alphabet I | GOOG | Shares | $14.4M | 50K |
| Vaneck Etf | SMH | Shares | $10.5M | 28K |
| Atrium The | RNA | Shares | $7.7M | 578K |
| Fox Corp | FOX | Shares | $7.3M | 138K |
| Jena Acqui | Shares | $7.2M | 700K | |
| Egh Acquis | Shares | $5.1M | 500K | |
| Kensington | Shares | $5.0M | 500K | |
| Oneim Acqu | Shares | $5.0M | 500K | |
| Gores Hldg | Shares | $4.9M | 475K | |
| Cantor Equ | Shares | $4.5M | 450K | |
| Zillow Gro | Z | Shares | $4.5M | 108K |
| Agricultur | Shares | $4.3M | 384K | |
| Trailblaze | Shares | $4.0M | 400K | |
| Trg Latin | Shares | $3.5M | 350K | |
| Live Oak A | Shares | $3.4M | 325K | |
| Newhold In | Shares | $3.4M | 325K | |
| Western Di | WDC | Shares | $3.2M | 12K |
| Oaktree Ac | Shares | $3.2M | 300K | |
| Armada Acq | Shares | $3.0M | 300K | |
| Clearway E | NY4B | Shares | $2.9M | 75K |
| Norwegian | Shares | $2.7M | 145K | |
| Gp-Act Iii | Shares | $2.7M | 250K | |
| Accel Ente | ACEL | Shares | $2.7M | 247K |
| Stellar V | Shares | $2.6M | 250K | |
| Dune Acqui | Shares | $2.6M | 250K | |
| Blue Wtr A | Shares | $2.6M | 250K | |
| New Provid | Shares | $2.6M | 250K | |
| Cartesian | Shares | $2.6M | 250K | |
| Thayer Ven | Shares | $2.6M | 250K | |
| Talon Cap | Shares | $2.5M | 250K | |
| Solarius C | Shares | $2.5M | 250K | |
| Pioneer Ac | Shares | $2.5M | 250K | |
| Oxley Brid | Shares | $2.5M | 250K | |
| M3-Brigade | Shares | $2.5M | 250K | |
| Highview M | Shares | $2.5M | 250K | |
| Cslm Digit | Shares | $2.5M | 250K | |
| Qdro Acqui | Shares | $2.5M | 250K | |
| Oracle Cor | ORCL | Shares | $2.4M | 16K |
| Under Armo | UAA | Shares | $2.4M | 400K |
| Bold Eagle | Shares | $2.3M | 219K | |
| Range Cap | Shares | $2.3M | 225K | |
| Liberty Gl | Shares | $2.2M | 186K | |
| Archimedes | Shares | $2.1M | 200K | |
| Gesher Acq | Shares | $2.1M | 200K | |
| Cohen Circ | Shares | $2.0M | 200K | |
| Blue Acqui | Shares | $2.0M | 200K | |
| Cal Redwoo | Shares | $2.0M | 200K | |
| Fortress V | Shares | $2.0M | 200K | |
| Cantor Equ | Shares | $1.8M | 175K | |
| Axiom Inte | Shares | $1.8M | 175K | |
| Otg Acquis | Shares | $1.8M | 175K | |
| Artius Ii | Shares | $1.7M | 160K | |
| Centurion | Shares | $1.6M | 150K | |
| Andretti A | Shares | $1.6M | 150K | |
| Mountain L | Shares | $1.6M | 150K | |
| Armada Acq | Shares | $1.5M | 150K | |
| Soulpower | Shares | $1.5M | 150K | |
| Pyrophyte | Shares | $1.5M | 150K | |
| Eqv Ventur | Shares | $1.5M | 150K | |
| Futurecres | Shares | $1.5M | 150K | |
| Aa Mission | Shares | $1.5M | 150K | |
| Viking Acq | Shares | $1.5M | 150K | |
| D. Boral A | Shares | $1.3M | 125K | |
| Chenghe Ac | Shares | $1.3M | 125K | |
| Galata Acq | Shares | $1.2M | 125K | |
| Silver Peg | Shares | $1.2M | 120K | |
| Legato Mer | Shares | $1.1M | 100K | |
| Jackson Ac | Shares | $1.1M | 100K | |
| Aldel Finl | Shares | $1.1M | 100K | |
| Roman Dbdr | Shares | $1.0M | 100K | |
| Rithm Acqu | Shares | $1.0M | 100K | |
| New Amer A | NWAX/U | Shares | $1.0M | 100K |
| Copley Acq | Shares | $1.0M | 100K | |
| Cantor Equ | Shares | $1.0M | 100K | |
| Sizzle Acq | Shares | $1.0M | 100K | |
| Berto Acqu | Shares | $1.0M | 100K | |
| Oyster Ent | Shares | $1.0M | 100K | |
| Inflection | Shares | $1.0M | 100K | |
| Wen Acquis | Shares | $1.0M | 100K | |
| Spring Vy | Shares | $1.0M | 100K | |
| 1Rt Acquis | Shares | $1.0M | 100K | |
| Figx Cap A | Shares | $1.0M | 100K | |
| Willow Lan | Shares | $1.0M | 100K | |
| Mckinley A | Shares | $1.0M | 100K | |
| Spartacus | Shares | $1.0M | 100K | |
| Apex Treas | Shares | $999K | 100K |
Values as reported in public regulatory filings (USD); holdings are reported quarterly, up to 45 days after quarter end, and may contain reporting errors. Nothing here is investment advice.