O'Connor Alternative Investments LLC
O'Connor Alternative Investments LLC reported 140 US-listed holdings worth $1.15 billion in its 13F for the quarter ended 30 June 2026, filed 14 August 2026. Its largest: Chart Inds Inc. (52.3%), Topbuild Corp. (14.9%) and Alphabet Inc. (2.5%). Against the quarter before, it opened 57 positions, added to 6, trimmed 3 and sold out of 38.
The fund asked the SEC to keep some positions private for now; they are not in this filing and appear in an amendment once released.
Reported holdings$1.15B-35.1% on Q1 2026
Positions140+19 on Q1 2026
The largest ten79.1%of its reported holdings
Latest 13FQ2 2026filed 14 August 2026
OpenedAdded toHeld
The 14 largest of its 140 positions, each sized by its share of the reported holdings, coloured by the change in shares against Q1 2026.
What the fund reported holding at each quarter's end; hover a bar for the number of positions
What it did on the quarter
Opened 57Added 6Held 74Trimmed 3Sold out 38
Its positions against its 13F for the quarter to 31 March 2026; a change under 0.1% of a position counts as held
Opened 57
- Topbuild Corp. BLD$170.3 million
- Super Micro Computer Inc. SMCIP$28.2 million
- Alphabet Inc. GOOGN$22.6 million
- Oracle Corp. ORCLPRD$9.0 million
- News Corp. NWSA$8.6 million
- Heico Corp. New HEIA$6.1 million
- Iris Energy Ltd IREN$5.1 million
- Gores Holdings Xi Inc. GHXIU$5.1 million
and 49 more in the table below
Added to 6
- Chart Inds Inc. GTLS+846,804 shares · +42%
- Alphabet Inc. GOOG+29,770 shares · +59%
- Zillow Group Inc. Z+222,665 shares · +206%
- Liberty Global Ltd LBTYK+215,516 shares · +116%
- Fox Corp. FOX+13,128 shares · +10%
- Under Armour, Inc. UAA+38,543 shares · +10%
Trimmed 3
- Blue Acquisition Corp. BACC-50,000 shares · -25%
- Bold Eagle Acquisition Corp. BEAG-19,217 shares · -9%
- Blue Acquisition Corp. BACCR-50,000 shares · -25%
Sold out of 38
- Hologic Inc. HOLX$235.7 million last quarter
- Air Lease Corp. AL$185.7 million last quarter
- Clearwater Analytics Hldgs I CWAN$151.6 million last quarter
- Amicus Therapeutics Inc. FOLD$122.1 million last quarter
- Sealed Air Corp. New SEE$93.1 million last quarter
- Onestream Inc. OS$76.5 million last quarter
- Masimo Corp. MASI$73.4 million last quarter
- Arcellx Inc. ACLX$51.7 million last quarter
What it holds
| Company | Shares | Value | Of its book | Change in shares |
|---|---|---|---|---|
| Chart Inds Inc. GTLS | 2,865,147 | $598.6 million | 52.28% | +846,804 |
| Topbuild Corp. BLD | 480,292 | $170.3 million | 14.87% | new |
| Alphabet Inc. GOOG | 80,020 | $28.3 million | 2.47% | +29,770 |
| Super Micro Computer Inc. SMCIP | 550,000 | $28.2 million | 2.46% | new |
| Klarna Group PLC KLAR | 1,127,170 | $22.8 million | 1.99% | no change |
| Alphabet Inc. GOOGN | 450,000 | $22.6 million | 1.97% | new |
| Zillow Group Inc. Z | 330,595 | $10.4 million | 0.91% | +222,665 |
| Oracle Corp. ORCLPRD | 200,000 | $9.0 million | 0.78% | new |
| News Corp. NWSA | 348,019 | $8.6 million | 0.75% | new |
| Jena Acquisition Corp. II JENA | 700,000 | $7.3 million | 0.63% | no change |
| Fox Corp. FOX | 150,908 | $7.1 million | 0.62% | +13,128 |
| Heico Corp. New HEIA | 23,615 | $6.1 million | 0.53% | new |
| Egh Acquisition Corp. EGHA | 500,000 | $5.2 million | 0.45% | no change |
| Iris Energy Ltd IREN | 111,300 | $5.1 million | 0.44% | new |
| Gores Holdings Xi Inc. GHXIU | 500,000 | $5.1 million | 0.44% | new |
| Oneim Acquisition Corp. OIM | 500,000 | $5.0 million | 0.44% | no change |
| Gores Hldgs X Inc. GTEN | 474,796 | $5.0 million | 0.43% | -145 |
| Rivian Automotive Inc. RIVN | 279,000 | $4.8 million | 0.42% | new |
| Cantor Equity Partners V Inc. CEPV | 450,000 | $4.6 million | 0.41% | no change |
| Advanced Energy Industries Inc. AEIS | 11,850 | $4.4 million | 0.39% | new |
| Liberty Global Ltd LBTYK | 401,616 | $4.4 million | 0.39% | +215,516 |
| Agriculture & Nat Sol Acq Co. ANSC | 384,160 | $4.4 million | 0.38% | no change |
| Trailblazer Acquisition Corp. BLZR | 400,000 | $4.0 million | 0.35% | no change |
| iShares Trust ICLN | 193,000 | $4.0 million | 0.35% | new |
| Rubrik Inc. RBRK | 43,600 | $3.5 million | 0.31% | new |
| NRG Energy, Inc. NRG | 22,000 | $3.2 million | 0.28% | new |
| Oaktree Acquisition Corp. III OACC | 300,000 | $3.2 million | 0.28% | no change |
| Accel Entertainment Inc. ACEL | 246,728 | $3.1 million | 0.27% | no change |
| Norwegian Cruise Line Holdings Ltd. NCLH | 145,200 | $3.1 million | 0.27% | no change |
| General Catalyst GBL Resil M GCGR | 300,000 | $3.0 million | 0.26% | new |
| Under Armour, Inc. UAA | 438,543 | $2.8 million | 0.24% | +38,543 |
| Stellar V Cap Corp. SVCC | 250,000 | $2.6 million | 0.23% | no change |
| Dune Acquisition Corp. II CCAQ | 250,000 | $2.6 million | 0.23% | no change |
| New Providence Acquisition C NPAC | 250,000 | $2.6 million | 0.23% | no change |
| Thayer Ventures Acq Corp. II TVAI | 250,000 | $2.6 million | 0.23% | no change |
| Blue WTR Acquisition Corp. I BLUW | 250,000 | $2.6 million | 0.23% | no change |
| Talon Cap Corp. TLNC | 250,000 | $2.6 million | 0.22% | no change |
| Solarius Capital Acqu Corp. SOCA | 250,000 | $2.6 million | 0.22% | no change |
| Oxley Bridge Acq Ltd OBA | 250,000 | $2.6 million | 0.22% | no change |
| SPDR Ser Trust XOP | 16,570 | $2.6 million | 0.22% | new |
| ARK ETF Trust ARKK | 31,600 | $2.6 million | 0.22% | new |
| Pioneer Acquisition I Corp. PACH | 250,000 | $2.6 million | 0.22% | no change |
| Highview Merger Corp. HVMC | 250,000 | $2.5 million | 0.22% | no change |
| Cslm Digita Asset Acq Corp. I KOYN | 250,000 | $2.5 million | 0.22% | no change |
| M3-BRIGADE Acquisition Vi Co. MBVI | 250,000 | $2.5 million | 0.22% | no change |
| ARK Space Exploration & Innovation ETF ARKX | 73,600 | $2.5 million | 0.22% | new |
| iShares Inc. EWJ | 26,700 | $2.5 million | 0.22% | new |
| Wilco 63 Corp. WLCOU | 250,000 | $2.5 million | 0.22% | new |
| Qdro Acquisition Corp. QADR | 250,000 | $2.5 million | 0.22% | new |
| iShares Trust IHI | 50,000 | $2.5 million | 0.22% | new |
| Invesco Exch Traded FD Trust II TAN | 41,700 | $2.5 million | 0.22% | new |
| Select Sector SPDR Trust XLB | 48,500 | $2.5 million | 0.22% | new |
| Keystone Acquisition Corp. KEYY | 250,000 | $2.5 million | 0.22% | new |
| Range Cap Acquisition Corp. I RNGT | 225,000 | $2.3 million | 0.20% | no change |
| Bold Eagle Acquisition Corp. BEAG | 200,000 | $2.1 million | 0.19% | -19,217 |
| Gesher Acquisition Corp. II GSHR | 200,000 | $2.1 million | 0.18% | no change |
| Cohen Circle Acquisit Corp. I CCII | 200,000 | $2.1 million | 0.18% | no change |
| Cal Redwood Acquisition Corp. CRAQ | 200,000 | $2.1 million | 0.18% | no change |
| Ightwave Acquisition Corp. LWAC | 200,000 | $2.0 million | 0.18% | new |
| Fortress Value Acqu Corp. V FVAV | 200,000 | $2.0 million | 0.18% | no change |
| Tribeca Strategic Acquisitio BIDWU | 200,000 | $2.0 million | 0.17% | new |
| Cantor Equity Partners IV in CEPF | 174,570 | $1.8 million | 0.16% | no change |
| Axiom Intelligence Ac Corp. 1 AXIN | 175,000 | $1.8 million | 0.16% | no change |
| Otg Acquisition Corp. I OTGA | 175,000 | $1.8 million | 0.16% | no change |
| Artius II Acquisition Inc. AACB | 160,000 | $1.7 million | 0.15% | no change |
| Andretti Acquisition Corp. II POLE | 150,000 | $1.6 million | 0.14% | no change |
| Entrepreneurshares Series Trust XOVR | 76,100 | $1.6 million | 0.14% | new |
| Blue Acquisition Corp. BACC | 150,000 | $1.6 million | 0.14% | -50,000 |
| Defiance Quantum ETF QTUM | 9,600 | $1.6 million | 0.14% | new |
| GE HealthCare Technologies Inc. GEHC | 24,704 | $1.6 million | 0.14% | new |
| Armada Acquisition Corp. II XRPN | 150,000 | $1.6 million | 0.14% | no change |
| Soulpower Acquisition Corp. SOUL | 150,000 | $1.6 million | 0.14% | no change |
| Futurecrest Acquisition Corp. FCRS | 150,000 | $1.5 million | 0.13% | no change |
| Viking Acquisition Corp. I VACI | 150,000 | $1.5 million | 0.13% | no change |
| Pyrophyte Acquisition Corp. PAII | 150,000 | $1.5 million | 0.13% | no change |
| Eqv Ventures Ac Corp. II EVAC | 150,000 | $1.5 million | 0.13% | no change |
| Aa Mission Acquisition Corp. O YCY | 150,000 | $1.5 million | 0.13% | no change |
| SPDR Index SHS FDS FEZ | 22,100 | $1.5 million | 0.13% | new |
| Safeguard Acquisition Corp. SAC | 150,000 | $1.5 million | 0.13% | new |
| S&P Global Inc. SPGI | 3,700 | $1.5 million | 0.13% | new |
| Abbott Laboratories ABT | 16,500 | $1.5 million | 0.13% | new |
| Colgate-Palmolive Co. CL | 16,300 | $1.5 million | 0.13% | new |
| Gilead Sciences, Inc. GILD | 11,800 | $1.5 million | 0.13% | new |
| Mirion Technologies, Inc. MIR | 82,400 | $1.5 million | 0.13% | new |
| United Therapeutics Corp. UTHR | 2,700 | $1.5 million | 0.13% | new |
| Vistra Corp. VST | 9,200 | $1.5 million | 0.13% | new |
| American International Group, Inc. AIG | 19,300 | $1.4 million | 0.13% | new |
| PepsiCo Inc. PEP | 10,600 | $1.4 million | 0.13% | new |
| CRH Public Ltd. Co. CRH | 13,300 | $1.4 million | 0.12% | new |
| Chenghe Acquisition III Co. O CHEC | 125,000 | $1.3 million | 0.11% | no change |
| Galata Acquisition Corp. II LATA | 125,000 | $1.3 million | 0.11% | no change |
| Rre Ventures Acquisition Cor RREV | 125,000 | $1.2 million | 0.11% | new |
| Ilver Pegasus Acquisition C SPEG | 120,000 | $1.2 million | 0.11% | no change |
| Aldel Finl II Inc. ALDF | 100,000 | $1.1 million | 0.09% | no change |
| Jackson Acquisition Co. II JACS | 100,000 | $1.1 million | 0.09% | no change |
| Roman Dbdr Acquisition Corp. DRDB | 100,000 | $1.1 million | 0.09% | no change |
| Berto Acquisition Corp. TACO | 100,000 | $1.0 million | 0.09% | no change |
| Rithm Acquisition Corp. RAC | 100,000 | $1.0 million | 0.09% | no change |
| Copley Acquisition Corp. COPL | 100,000 | $1.0 million | 0.09% | no change |
| Sizzle Acquisition Corp. II SZZL | 100,000 | $1.0 million | 0.09% | no change |
| Inflection PT Acquisition Co. IPCX | 100,000 | $1.0 million | 0.09% | no change |
| Oyster Enterprises II Acquis OYSE | 100,000 | $1.0 million | 0.09% | no change |
| Wen Acquisition Corp. WENN | 100,000 | $1.0 million | 0.09% | no change |
| HCM III Acquisition Corp. HCMA | 100,000 | $1.0 million | 0.09% | new |
| 1RT Acquisition Corp. ONCH | 100,000 | $1.0 million | 0.09% | no change |
| Figx Cap Acquisition Corp. FIGX | 100,000 | $1.0 million | 0.09% | no change |
| McKinley Acquisition Corp. MKLY | 100,000 | $1.0 million | 0.09% | no change |
| New Amer Acquisition I Corp. NWAX | 100,000 | $1.0 million | 0.09% | new |
| Lafayette Acquisition Corp. LAFA | 100,000 | $1.0 million | 0.09% | new |
| BTC Dev Corp. BDCI | 100,000 | $1.0 million | 0.09% | no change |
| Apex Treas Corp. APXT | 100,000 | $1.0 million | 0.09% | no change |
| Iron Horse Acquisit II Corp. IRHO | 100,000 | $1.0 million | 0.09% | new |
| Bitcoin Infrastructure Acqui Usd Class BIXI | 100,000 | $1.0 million | 0.09% | no change |
| Spartacus Acquisition Corp. I TMTS | 100,000 | $1.0 million | 0.09% | new |
| Vaneck ETF Trust OIH | 2,200 | $818,466 | 0.07% | new |
| Ndigo Acquisition Corp. INAC | 75,000 | $768,750 | 0.07% | no change |
| Alnylam Pharmaceuticals Inc ALNY | 2,500 | $752,575 | 0.07% | new |
| Moody's Corp. MCO | 1,600 | $724,672 | 0.06% | new |
| American Exceptionalism Acqu AEXA | 50,000 | $591,000 | 0.05% | no change |
| Bain Cap GSS Invt Corp. BCSS | 50,000 | $513,500 | 0.04% | no change |
| Gen Digital Inc. GENVR | 250,516 | $333,186 | 0.03% | no change |
| Skillsoft Corp. SKIL | 41,692 | $215,965 | 0.02% | no change |
| Bold Eagle Acquisition Corp. BEAGR | 400,000 | $134,000 | 0.01% | no change |
| Blue Acquisition Corp. BACCR | 150,000 | $117,750 | 0.01% | -50,000 |
| Trailblazer Acquisition Corp. BLZRW | 133,333 | $58,733 | 0.01% | no change |
| Royalty Management Holding C RMCOW | 221,686 | $41,588 | 0.00% | no change |
| Qdro Acquisition Corp. QADRW | 124,999 | $36,875 | 0.00% | new |
| New America Acquisition I Corp NWAXWS | 50,000 | $31,250 | 0.00% | new |
| Lafayette Digital Acquisitio ZKPW | 75,000 | $22,162 | 0.00% | new |
| McKinley Acquisition Corp. MKLYR | 100,000 | $21,500 | 0.00% | no change |
| Invest Green Acquisition Corp IGACR | 100,000 | $21,070 | 0.00% | new |
| Iron Horse Acquisit II Corp. IRHOR | 100,000 | $16,040 | 0.00% | new |
| Bluerock Acquisition Corp. BLRKW | 33,333 | $15,000 | 0.00% | new |
| Tevogen Bio Hldgs Inc. TVGNW | 181,387 | $10,303 | 0.00% | no change |
| Lafayette Acquisition Corp. LAFAR | 100,000 | $9,630 | 0.00% | new |
| Indigo Acquisition Corp. INACR | 75,000 | $9,375 | 0.00% | no change |
| Scage Future SCAGW | 127,590 | $5,231 | 0.00% | no change |
| Multisensor Ai Holdings Inc. MSAIW | 142,585 | $4,135 | 0.00% | no change |
| Cid Holdco Inc. DAICW | 282,640 | $3,872 | 0.00% | no change |
| Borealis Foods Inc. BRLSW | 70,030 | $3,284 | 0.00% | no change |
Every US-listed position in the fund's 13F for the quarter ended 30 June 2026, by the value it reported.
Read more
Change is shares against its 13F for the quarter before; the 38 it sold out of are in the box above.Options it reported
| Company | Option | Shares under the options | Value of those shares |
|---|---|---|---|
| American Airlines Group Inc. AAL | Puts | 2,454,900 | $656,637 |
| RH RH | Puts | 12,000 | $338,100 |
| SPDR S&P 500 SPY | Puts | 118,000 | $280,085 |
| Ford Motor Co. F | Puts | 46,600 | $109,510 |
| Calumet Inc. CLMT | Puts | 20,400 | $93,990 |
| Lucid Group Inc. Com New LCID | Puts | 12,700 | $89,462 |
| Suburban Propane Partners L SPH | Puts | 39,000 | $21,450 |
7 option lines. A 13F lists calls and puts by the shares they cover and what those shares were worth at the quarter's end, not what the options cost; they are not counted in the holdings above.