O'Connor Alternative Investments LLC
In its 13F for Q1 2026 (holdings as of March 31, 2026, filed May 15, 2026), O'Connor Alternative Investments LLC reported 109 stock positions worth $1.8 billion. Its top holding was Chart Industries (GTLS) at 23.7% of the portfolio, followed by Hologic (HOLX, 13.4%) and Sumisho Air Lease (AL, 10.5%).
- Most Recent 13F
- Q2 2026
- Location
- NEW YORK, NY
- CIK
- 0002081629
- Portfolio Value
- $1.8B (Q1 2026)
- SEC Filing
- 0002081629-26-000003 ↗ filed May 15, 2026
Holdings Value
Holdings 109 stocks · $1.8B
| GTLS Chart Industries Inc. | 23.66% | 2,018,343 | $417.3M | — |
| HOLX Hologic Inc. | 13.37% | 3,118,178 | $235.7M | — |
| AL Sumisho Air Lease Corp. filed as AIR LEASE CORP | 10.53% | 2,860,079 | $185.7M | — |
| CWAN Clearwater Analytics HDS-A | 8.60% | 6,409,535 | $151.6M | — |
| FOLD Amicus Therapeutics Inc. | 6.92% | 8,444,992 | $122.1M | — |
| SEE Sealed Air Corp. | 5.28% | 2,214,582 | $93.1M | — |
| OS Onestream Inc. | 4.34% | 3,186,804 | $76.5M | — |
| MASI Masimo Corp. | 4.16% | 412,903 | $73.4M | — |
| ACLX Arcellx Inc. | 2.93% | 450,504 | $51.7M | — |
| DAWN Day One Biopharmaceuticals I | 2.27% | 1,867,553 | $40.0M | — |
| CTRA Coterra Energy Inc. | 2.00% | 1,002,337 | $35.2M | — |
| CUK Carnival PLC-ADR | 1.44% | 982,643 | $25.3M | — |
| KLAR Klarna Group PLC | 0.84% | 1,127,170 | $14.8M | — |
| GOOG Alphabet Inc. Class C | 0.82% | 50,250 | $14.4M | — |
| APLS Apellis Pharmaceuticals Inc. | 0.68% | 300,000 | $12.1M | — |
| SMH Vaneck Semiconductor ETF | 0.60% | 27,500 | $10.5M | — |
| RNA Atrium Therapeutics Inc. | 0.44% | 578,011 | $7.7M | — |
| FOX Fox Corp. Class B | 0.41% | 137,780 | $7.3M | — |
| JENA Jena Acquisition Corp. II - A | 0.41% | 700,000 | $7.2M | — |
| EGHA Egh Acquisition Co. Class A | 0.29% | 500,000 | $5.1M | — |
| KCAC.U Kensington Capital Acquisiti | 0.28% | 500,000 | $5.0M | — |
| OIM Oneim Acquisition Class-A | 0.28% | 500,000 | $5.0M | — |
| GTEN Gores Holdings X Inc. Class A | 0.28% | 474,941 | $4.9M | — |
| CEPV Cantor Equity Partners Class A | 0.26% | 450,000 | $4.5M | — |
| Z Zillow Group Inc. Class C | 0.25% | 107,930 | $4.5M | — |
| ANSC Agriculture & Natural Soluti | 0.25% | 384,160 | $4.3M | — |
| BLZR Trailblazer Acquisition Class A | 0.23% | 400,000 | $4.0M | — |
| TRGSU TRG Latin America Acquisitio | 0.20% | 350,000 | $3.5M | — |
| TMS Teamshares Inc. filed as LIVE OAK ACQUISITION CORP V | 0.19% | 324,923 | $3.4M | — |
| NHIC Newhold Investment Cor III-A | 0.19% | 324,604 | $3.4M | — |
| WDC Western Digital Corp. | 0.18% | 12,000 | $3.2M | — |
| OACC Oaktree Acquisition Corp. I-A | 0.18% | 300,000 | $3.2M | — |
| XRPNU Armada Acquisition Corp. II | 0.17% | 300,000 | $3.0M | — |
| CWEN.A Clearway Energy Inc. Class A | 0.17% | 75,000 | $2.9M | — |
| NCLH Norwegian Cruise Line Holdin | 0.15% | 145,200 | $2.7M | — |
| GPAT GP-Act III Acquisition-A | 0.15% | 250,000 | $2.7M | — |
| ACEL Accel Entertainment Inc. | 0.15% | 246,728 | $2.7M | — |
| SVCC Stellar V Capital Corp. Class A | 0.15% | 250,000 | $2.6M | — |
| CCAQ Collective Acquisition Corp. filed as DUNE ACQUISITION CORP II | 0.15% | 250,000 | $2.6M | — |
| BLUW Blue Water Acquisition C-A filed as BLUE WTR ACQUISITION CORP. I | 0.15% | 250,000 | $2.6M | — |
| NPAC New Providence Acquisition-A | 0.15% | 250,000 | $2.6M | — |
| FAC Factorial Energy Inc. filed as CARTESIAN GROWTH CORP III | 0.15% | 250,000 | $2.6M | — |
| TVAI Thayer Ventures Acquis Class A | 0.14% | 250,000 | $2.6M | — |
| TLNC Talon Capital Corp. Class A | 0.14% | 250,000 | $2.5M | — |
| SOCA Solarius Capital Acquis Class A | 0.14% | 250,000 | $2.5M | — |
| PACH Pioneer Acquisition I Class A | 0.14% | 250,000 | $2.5M | — |
| OBA Oxley Bridge Acquisitio Class A | 0.14% | 250,000 | $2.5M | — |
| MBVI M3-Brigade Acquisition Class A | 0.14% | 250,000 | $2.5M | — |
| HVMC Highview Merger Corp. Class A | 0.14% | 250,000 | $2.5M | — |
| KOYN CSLM Digital Asset Acqu - A | 0.14% | 250,000 | $2.5M | — |
| QADRU Qdro Acquisition Corp. | 0.14% | 250,000 | $2.5M | — |
| ORCL Oracle Corp. | 0.14% | 16,425 | $2.4M | — |
| UAA Under Armour Inc. Class A | 0.13% | 400,000 | $2.4M | — |
| BEAG Bold Eagle Acquisition Cor-A | 0.13% | 219,217 | $2.3M | — |
| RNGT Range Capital Acquisit Class A | 0.13% | 225,000 | $2.3M | — |
| LBTYK Liberty Global Ltd. Class C | 0.12% | 186,100 | $2.2M | — |
| ATII Archimedes Tech Spac Partner | 0.12% | 200,000 | $2.1M | — |
| GSHR Gesher Acquisition Corp. II-A | 0.12% | 200,000 | $2.1M | — |
| CCII Cohen Circle Acquisit II - A | 0.12% | 200,000 | $2.0M | — |
| BACC Blue Acquisition Corp. Class A | 0.12% | 200,000 | $2.0M | — |
| CRAQ Cal Redwood Acquisit Class A | 0.12% | 200,000 | $2.0M | — |
| FVAV Fortress Value Acquis V Class A | 0.11% | 200,000 | $2.0M | — |
| CEPF Cantor Equity Partners Class A | 0.10% | 174,570 | $1.8M | — |
| AXIN Axiom Intelligence Class A | 0.10% | 175,000 | $1.8M | — |
| OTGA Otg Acquisition Corp. I Class A | 0.10% | 175,000 | $1.8M | — |
| AACB Artius II Acquisition Inc. Class A | 0.09% | 160,000 | $1.7M | — |
| ALF Centurion Acquisition Corp. | 0.09% | 150,000 | $1.6M | — |
| POLE Andretti Acquisition Corp. Class A | 0.09% | 150,000 | $1.6M | — |
| MLAC Mountain Lake Acquisition-A | 0.09% | 149,912 | $1.6M | — |
| XRPN Armada Acquisition Class A | 0.09% | 150,000 | $1.5M | — |
| SOUL Soulpower Acquisition Co. Class A | 0.09% | 150,000 | $1.5M | — |
| PAII Pyrophyte Acquisition Corp. Class A | 0.09% | 150,000 | $1.5M | — |
| EVAC Eqv Ventures Acquisition C-A | 0.09% | 150,000 | $1.5M | — |
| FCRS Futurecrest Acquisition Class A | 0.09% | 150,000 | $1.5M | — |
| YCY Aa Mission Acquisition-A | 0.09% | 150,000 | $1.5M | — |
| NSTR Northstar Earth & Space Ente filed as VIKING ACQUISITION CORP I | 0.08% | 150,000 | $1.5M | — |
| BCAR D. Boral Arc Acquisit Class A | 0.07% | 125,000 | $1.3M | — |
| CHEC Chenghe Acquisition II Class A | 0.07% | 125,000 | $1.3M | — |
| LATA Galata Acqu Corp. II Class A | 0.07% | 125,000 | $1.2M | — |
| SPEG Silver Pegasus Acquisition-A | 0.07% | 120,000 | $1.2M | — |
| LEGT Legato Merger Corp. III | 0.06% | 100,000 | $1.1M | — |
| JACS Jackson Acquisition Co. Class A | 0.06% | 100,000 | $1.1M | — |
| ALDF Aldel Financial II Inc. | 0.06% | 100,000 | $1.1M | — |
| DRDB Roman DBDR Acquisition Corp. | 0.06% | 100,000 | $1.0M | — |
| RAC Rithm Acquisition Corp. Class A | 0.06% | 100,000 | $1.0M | — |
| NWAX.U New America Acquisition I Co. | 0.06% | 100,000 | $1.0M | — |
| COPL Copley Acquisition Corp. Class A | 0.06% | 100,000 | $1.0M | — |
| CAEP Cantor Equity Partners III-A | 0.06% | 100,000 | $1.0M | — |
| SZZL Sizzle Acquisition Corp. Class A | 0.06% | 100,000 | $1.0M | — |
| TACO Berto Acquisition Corp. | 0.06% | 100,000 | $1.0M | — |
| OYSE Oyster Enterprises II Acq-A | 0.06% | 100,000 | $1.0M | — |
| IPCX Inflection Point Acquisiti-A | 0.06% | 100,000 | $1.0M | — |
| WENN Wen Acquisition Corp. Class A | 0.06% | 100,000 | $1.0M | — |
| GFUZ General Fusion Group Ltd. filed as SPRING VY ACQUISITION CORP I | 0.06% | 100,000 | $1.0M | — |
| ONCH 1RT Acquisition Corp. Class A | 0.06% | 100,000 | $1.0M | — |
| FIGX Figx Capital Acquisition C-A | 0.06% | 100,000 | $1.0M | — |
| WLIIU Willow Lane Acquisition Corp. | 0.06% | 100,000 | $1.0M | — |
| MKLY McKinley Acquisition Co. Class A | 0.06% | 100,000 | $1.0M | — |
| TMTSU Spartacus Acqu Corp. II | 0.06% | 100,000 | $1.0M | — |
| APXT Apex Treasury Corp. Class A | 0.06% | 100,000 | $999K | — |
Options reported separately and not counted above: AAL puts ($461K), SPY puts ($257K), BE calls ($245K), SNOW calls ($122K), LCID puts ($70K), PANW calls ($26K), QQQ puts ($2K).
Other holdings (18): bonds, preferreds, convertibles and warrants · $143.9M (not counted above)
| Security | Class | Shares / Principal | Value | Change |
|---|---|---|---|---|
| SNOWFLAKE INC (SNOW 0 10/01/29) | NOTE 10/0 · principal | 25,000,000 | $30.8M | — |
| DUKE ENERGY CORP (DUK 4.125 04/15/26) | NOTE 4.125% 4/1 · principal | 25,000,000 | $27.7M | — |
| CLOUDFLARE INC (NET 0 08/15/26) | NOTE 8/1 · principal | 21,500,000 | $25.2M | — |
| LIVE NATION ENTERTAINMEN (LYV 3.125 01/15/29) | NOTE 3.125% 1/1 · principal | 15,000,000 | $22.9M | — |
| ON SEMICONDUCTOR CORP (ON 0.5 03/01/29) | NOTE 0.500% 3/0 · principal | 20,000,000 | $19.7M | — |
| AKAMAI TECHNOLOGIES INC (AKAM 1.125 02/15/29) | NOTE 1.125% 2/1 · principal | 15,000,000 | $17.2M | — |
| GENVR Gen Digital Inc. - CVR | RIGHT 99/99/9999 | 250,516 | $120K | — |
| BEAGR Bold Eagle Acquisition Corp. | RIGHT 10/11/2029 | 400,000 | $92K | — |
| BACCR Blue Acquisition Corp.-RTS | RIGHT 06/11/2030 | 200,000 | $65K | — |
| RMCOW American Acq Class A -CW26 | *W EXP 10/31/202 | 221,686 | $54K | — |
| BLZRW Trailblazer Acqui Corp. -30 | *W EXP 09/30/203 | 133,333 | $51K | — |
| MKLYR McKinley Acquisition Corp. | RIGHT 07/25/2030 | 100,000 | $11K | — |
| INACR Indigo Acquisition Corp. | RIGHT 04/02/2027 | 75,000 | $10K | — |
| DAICW Cid Holdco Inc. -26 | *W EXP 12/31/202 | 282,640 | $7K | — |
| SCAGW Scage Future -30 | *W EXP 05/15/203 | 127,590 | $7K | — |
| TVGNW Semper Paratus Acqu -CW26 | *W EXP 02/14/202 | 181,387 | $6K | — |
| MSAIW Sportsmap Tech Acq -CW27 | *W EXP 12/19/202 | 142,585 | $6K | — |
| BRLSW Oxus Acquisition Corp. -CW23 | *W EXP 02/07/202 | 70,030 | $5K | — |
Total filed on the 13F, all lines: $1.9B.
Portfolio Sells Q1 2026
No earlier filing to compare with.
Portfolio Buys Q1 2026
No earlier filing to compare with.