O'Connor Alternative Investments LLC
13F Reported Value
ⓘ$1.2B
incl. option notional
Equity Holdings
ⓘ$1.2B
Option Notional
ⓘ$1.2M
$789,831 puts / $393,050 calls
Holdings
128
Latest Filing
2026-03-31
Filing Quarter
Q1 2026
Portfolio Overview
O'Connor Alternative Investments LLC disclosed 128 positions worth $1.2B in its Form 13F-HR for Q1 2026 — $1.2B in common stock plus $1.2M of put/call option positions (reported at underlying notional value, not premium at risk), led by $HOLX (HOLOGIC INC) at 20.2% of the equity portfolio, followed by $AL and $FOLD. During the quarter the fund opened 128 new positions and exited 0 — including a new stake in $HOLX. The portfolio is most concentrated in Healthcare (34.8% of disclosed assets). All figures are sourced directly from O'Connor Alternative Investments LLC’s Form 13F-HR filing with the SEC under CIK 2081629.
Sector Allocation
Top Equity Holdings by Value
Option Positions
13F rules report options at the value of the underlying shares (notional) — not the premium paid or capital at risk. Shown separately from the equity sleeve above.
Quarterly Activity — Q1 2026
Click any card to unlockTop Holdings
- 62.3#750
Quality
$235.7M3,118,178 sh - 73.8#183
Quality
$185.7M2,860,079 sh - 44.2#1,783
Quality
$122.1M8,444,992 sh - 45.1
Quality
$93.1M2,214,582 sh - 41.0
Quality
$76.5M3,186,804 sh - 42.6
Quality
$40.0M1,867,553 sh - 49.6
Quality
$30.8M25,000,000 sh - 64.0
Quality
$27.7M25,000,000 sh - —
Quality
$25.3M982,643 sh - 52.6
Quality
$25.2M21,500,000 sh
| Company | Quality | Value | Shares |
|---|---|---|---|
 HOLOGIC INC$HOLX | 62.3#750 | $235.7M | 3,118,178 |
 AIR LEASE CORP$AL | 73.8#183 | $185.7M | 2,860,079 |
 AMICUS THERAPEUTICS, INC.$FOLD | 44.2#1,783 | $122.1M | 8,444,992 |
 SunCar Technology Group Inc.$SDA | 45.1 | $93.1M | 2,214,582 |
 OneStream, Inc.$OS | 41.0 | $76.5M | 3,186,804 |
 Day One Biopharmaceuticals, Inc.$DAWN | 42.6 | $40.0M | 1,867,553 |
 Snowflake Inc.$SNOW | 49.6 | $30.8M | 25,000,000 |
 Duke Energy CORP$DUK | 64.0 | $27.7M | 25,000,000 |
 CARNIVAL PLC$CUK | — | $25.3M | 982,643 |
 Cloudflare, Inc.$NET | 52.6 | $25.2M | 21,500,000 |
Unlock AI quality scores for every holding
32-signal composite ranking on each of O'Connor Alternative Investments LLC's 128 positions.
Showing top 10 of 128 holdings.
Sector Allocation
Healthcare
$405.6M
Industrials
$235.4M
Technology
$175.1M
Financials
$150.0M
Consumer Discretionary
$98.9M
Other
$35.3M
Communication Services
$35.1M
Utilities
$30.6M
Full Holdings — O'Connor Alternative Investments LLC (Q1 2026)
All 128 disclosed positions from the latest Form 13F-HR, with quarter-over-quarter share changes and 13F Pro quality scores. Sourced from SEC EDGAR.
| # | Ticker | Company | Value | Weight | QoQ | Quality |
|---|---|---|---|---|---|---|
| 1 | $HOLX | HOLOGIC INC | $235.7M | 20.2% | NEW | 62.3 |
| 2 | $AL | AIR LEASE CORP | $185.7M | 15.9% | NEW | 73.8 |
| 3 | $FOLD | AMICUS THERAPEUTICS, INC. | $122.1M | 10.5% | NEW | 44.2 |
| 4 | $SDA | SunCar Technology Group Inc. | $93.1M | 8.0% | NEW | 45.1 |
| 5 | $OS | OneStream, Inc. | $76.5M | 6.6% | NEW | 41 |
| 6 | $DAWN | Day One Biopharmaceuticals, Inc. | $40.0M | 3.4% | NEW | 42.6 |
| 7 | $SNOW | Snowflake Inc. | $30.8M | 2.6% | NEW | 49.6 |
| 8 | $DUK | Duke Energy CORP | $27.7M | 2.4% | NEW | 64 |
| 9 | $CUK | CARNIVAL PLC | $25.3M | 2.2% | NEW | — |
| 10 | $NET | Cloudflare, Inc. | $25.2M | 2.2% | NEW | 52.6 |
| 11 |  $LYV | Live Nation Entertainment, Inc. | $22.9M | 2.0% | NEW | 55 |
| 12 |  $ON | ON SEMICONDUCTOR CORP | $19.7M | 1.7% | NEW | 42.4 |
| 13 |  $AKAM | AKAMAI TECHNOLOGIES INC | $17.2M | 1.5% | NEW | 62 |
| 14 |  $KLAR | Klarna Group plc | $14.8M | 1.3% | NEW | — |
| 15 |  $GOOGL | Alphabet Inc. | $14.4M | 1.2% | NEW | 80.2 |
| 16 | — | VANECK ETF | $10.5M | 0.9% | NEW | — |
| 17 |  $RNA | Avidity Biosciences, Inc. | $7.7M | 0.7% | NEW | 22.3 |
| 18 |  $FOX | Fox Corp | $7.3M | 0.6% | NEW | 65.1 |
| 19 |  $JENA | JENA ACQUISITION Corp II | $7.2M | 0.6% | NEW | — |
| 20 |  $EGHA | EGH Acquisition Corp. | $5.1M | 0.4% | NEW | — |
| 21 | — | KENSINGTON | $5.0M | 0.4% | NEW | — |
| 22 | — | ONEIM ACQU | $5.0M | 0.4% | NEW | — |
| 23 |  $GTEN | Gores Holdings X, Inc. / CI | $4.9M | 0.4% | NEW | — |
| 24 |  $CEPV | Cantor Equity Partners V, Inc. | $4.5M | 0.4% | NEW | — |
| 25 |  $Z | ZILLOW GROUP, INC. | $4.5M | 0.4% | NEW | 57.3 |
| 26 |  $ANSC | Agriculture & Natural Solutions Acquisition Corp | $4.3M | 0.4% | NEW | — |
| 27 |  $BLZR | Trailblazer Acquisition Corp. | $4.0M | 0.3% | NEW | — |
| 28 | — | TRG LATIN | $3.5M | 0.3% | NEW | — |
| 29 |  $TMS | Teamshares Inc | $3.4M | 0.3% | NEW | — |
| 30 |  $NHIC | NewHold Investment Corp. III | $3.4M | 0.3% | NEW | — |
| 31 |  $WDC | WESTERN DIGITAL CORP | $3.2M | 0.3% | NEW | 76.8 |
| 32 |  $OACC | Oaktree Acquisition Corp. III Life Sciences | $3.2M | 0.3% | NEW | — |
| 33 |  $XRPN | Armada Acquisition Corp. II | $3.0M | 0.3% | NEW | — |
| 34 |  $CWEN | Clearway Energy, Inc. | $2.9M | 0.3% | NEW | 64.2 |
| 35 |  $NCLH | Norwegian Cruise Line Holdings Ltd. | $2.7M | 0.2% | NEW | — |
| 36 |  $GPAT | GP-Act III Acquisition Corp. | $2.7M | 0.2% | NEW | — |
| 37 |  $ACEL | Accel Entertainment, Inc. | $2.7M | 0.2% | NEW | 56.3 |
| 38 | — | STELLAR V | $2.6M | 0.2% | NEW | — |
| 39 |  $CCAQ | COLLECTIVE ACQUISITION CORP. | $2.6M | 0.2% | NEW | — |
| 40 |  $BLUW | Blue Water Acquisition Corp. III | $2.6M | 0.2% | NEW | — |
| 41 |  $NPAC | New Providence Acquisition Corp. III/Cayman | $2.6M | 0.2% | NEW | — |
| 42 |  $FAC | Factorial Energy Inc. | $2.6M | 0.2% | NEW | — |
| 43 |  $TVAI | Thayer Ventures Acquisition Corp II | $2.6M | 0.2% | NEW | — |
| 44 |  $TLNC | Talon Capital Corp. | $2.5M | 0.2% | NEW | — |
| 45 |  $SOCA | Solarius Capital Acquisition Corp. | $2.5M | 0.2% | NEW | — |
| 46 |  $PACH | Pioneer Acquisition I Corp | $2.5M | 0.2% | NEW | — |
| 47 |  $OBA | Oxley Bridge Acquisition Ltd | $2.5M | 0.2% | NEW | — |
| 48 |  $MBVI | M3-Brigade Acquisition VI Corp. | $2.5M | 0.2% | NEW | — |
| 49 |  $HVMC | Highview Merger Corp. | $2.5M | 0.2% | NEW | — |
| 50 |  $KOYN | CSLM Digital Asset Acquisition Corp III, Ltd | $2.5M | 0.2% | NEW | — |
| 51 | — | QDRO ACQUI | $2.5M | 0.2% | NEW | — |
| 52 |  $ORCL | ORACLE CORP | $2.4M | 0.2% | NEW | 67.2 |
| 53 |  $UAA | Under Armour, Inc. | $2.4M | 0.2% | NEW | 40.5 |
| 54 |  $BEAG | Bold Eagle Acquisition Corp. | $2.3M | 0.2% | NEW | — |
| 55 |  $RNGT | Range Capital Acquisition Corp II | $2.3M | 0.2% | NEW | — |
| 56 |  $LBTYA | Liberty Global Ltd. | $2.2M | 0.2% | NEW | — |
| 57 |  $ATII | Archimedes Tech SPAC Partners II Co. | $2.1M | 0.2% | NEW | — |
| 58 |  $GSHR | Gesher Acquisition Corp. II | $2.1M | 0.2% | NEW | — |
| 59 |  $CCII | Cohen Circle Acquisition Corp. II | $2.0M | 0.2% | NEW | — |
| 60 | — | BLUE ACQUI | $2.0M | 0.2% | NEW | — |
| 61 |  $CRAQ | Cal Redwood Acquisition Corp. | $2.0M | 0.2% | NEW | — |
| 62 | — | FORTRESS V | $2.0M | 0.2% | NEW | — |
| 63 |  $CEPF | Cantor Equity Partners IV, Inc. | $1.8M | 0.1% | NEW | — |
| 64 |  $AXIN | Axiom Intelligence Acquisition Corp 1 | $1.8M | 0.1% | NEW | — |
| 65 |  $OTGA | OTG Acquisition Corp. I | $1.8M | 0.1% | NEW | — |
| 66 |  $AACB | Artius II Acquisition Inc. | $1.7M | 0.1% | NEW | — |
| 67 |  $ALF | Centurion Acquisition Corp. | $1.6M | 0.1% | NEW | — |
| 68 |  $POLE | Andretti Acquisition Corp. II | $1.6M | 0.1% | NEW | — |
| 69 |  $MLAC | Mountain Lake Acquisition Corp. | $1.6M | 0.1% | NEW | — |
| 70 | $XRPN | Armada Acquisition Corp. II | $1.5M | 0.1% | NEW | — |
| 71 |  $SOUL | Soulpower Acquisition Corp. | $1.5M | 0.1% | NEW | — |
| 72 |  $PAII | Pyrophyte Acquisition Corp. II | $1.5M | 0.1% | NEW | — |
| 73 |  $EVAC | EQV Ventures Acquisition Corp. II | $1.5M | 0.1% | NEW | — |
| 74 |  $FCRS | FutureCrest Acquisition Corp. | $1.5M | 0.1% | NEW | — |
| 75 |  $YCY | AA Mission Acquisition Corp. II | $1.5M | 0.1% | NEW | — |
| 76 |  $VACI | Viking Acquisition Corp I | $1.5M | 0.1% | NEW | — |
| 77 |  $BCAR | D. Boral ARC Acquisition I Corp. | $1.3M | 0.1% | NEW | — |
| 78 |  $CHEC | Chenghe Acquisition III Co. | $1.3M | 0.1% | NEW | — |
| 79 |  $LATA | Galata Acquisition Corp. II | $1.2M | 0.1% | NEW | — |
| 80 |  $SPEG | Silver Pegasus Acquisition Corp. | $1.2M | 0.1% | NEW | — |
| 81 |  $LEGT | Legato Merger Corp. III | $1.1M | 0.1% | NEW | — |
| 82 |  $JACS | Jackson Acquisition Co II | $1.1M | 0.1% | NEW | — |
| 83 |  $ALDF | Aldel Financial II Inc. | $1.1M | 0.1% | NEW | — |
| 84 |  $DRDB | Roman DBDR Acquisition Corp. II | $1.0M | 0.1% | NEW | — |
| 85 |  $RAC | Rithm Acquisition Corp. | $1.0M | 0.1% | NEW | — |
| 86 |  $NWAX | New America Acquisition I Corp. | $1.0M | 0.1% | NEW | — |
| 87 |  $COPL | Copley Acquisition Corp | $1.0M | 0.1% | NEW | — |
| 88 |  $CAEP | Cantor Equity Partners III, Inc. | $1.0M | 0.1% | NEW | — |
| 89 |  $SZZL | Sizzle Acquisition Corp. II | $1.0M | 0.1% | NEW | — |
| 90 |  $TACO | Berto Acquisition Corp. | $1.0M | 0.1% | NEW | — |
| 91 |  $OYSE | Oyster Enterprises II Acquisition Corp | $1.0M | 0.1% | NEW | — |
| 92 |  $IPCX | Inflection Point Acquisition Corp. III | $1.0M | 0.1% | NEW | — |
| 93 |  $WENN | WEN Acquisition Corp | $1.0M | 0.1% | NEW | — |
| 94 |  $GFUZ | General Fusion Group Ltd. | $1.0M | 0.1% | NEW | — |
| 95 |  $ONCH | 1RT Acquisition Corp. | $1.0M | 0.1% | NEW | — |
| 96 |  $FIGX | FIGX Capital Acquisition Corp. | $1.0M | 0.1% | NEW | — |
| 97 | — | WILLOW LAN | $1.0M | 0.1% | NEW | — |
| 98 |  $MKLY | McKinley Acquisition Corp | $1.0M | 0.1% | NEW | — |
| 99 | — | SPARTACUS | $1.0M | 0.1% | NEW | — |
| 100 |  $BDCI | BTC Development Corp. | $999,000 | 0.1% | NEW | — |
| 101 |  $APXT | Apex Treasury Corp | $999,000 | 0.1% | NEW | — |
| 102 |  $IRHO | Iron Horse Acquisition II Corp. | $996,000 | 0.1% | NEW | — |
| 103 |  $BIXI | Bitcoin Infrastructure Acquisition Corp Ltd | $990,000 | 0.1% | NEW | — |
| 104 |  $INAC | Indigo Acquisition Corp. | $760,500 | 0.1% | NEW | — |
| 105 |  $SPKL | Spark I Acquisition Corp | $755,870 | 0.1% | NEW | — |
| 106 |  $AEXA | American Exceptionalism Acquisition Corp. A | $541,500 | 0.1% | NEW | — |
| 107 |  $RAAQ | Real Asset Acquisition Corp. | $524,500 | 0.0% | NEW | — |
| 108 |  $BCSS | Bain Capital GSS Investment Corp. | $505,600 | 0.0% | NEW | — |
| 109 |  $AALPUT | American Airlines Group Inc. | $461,328 | — | NEW | 50.6 |
| 110 |  $SPYPUT | SPDR S&P 500 ETF TRUST | $257,325 | — | NEW | — |
| 111 |  $BECALL | Bloom Energy Corp | $245,250 | — | NEW | 54.4 |
| 112 |  $SKIL | Skillsoft Corp. | $178,859 | 0.0% | NEW | 25 |
| 113 | $SNOWCALL | Snowflake Inc. | $122,000 | — | NEW | 49.6 |
| 114 |  $GEN | Gen Digital Inc. | $120,248 | 0.0% | NEW | 67.7 |
| 115 | $BEAG | Bold Eagle Acquisition Corp. | $91,920 | 0.0% | NEW | — |
| 116 |  $LCIDPUT | Lucid Group, Inc. | $69,618 | — | NEW | 30.1 |
| 117 | — | BLUE ACQUI | $64,740 | 0.0% | NEW | — |
| 118 | — | ROYALTY MG | $53,936 | 0.0% | NEW | — |
| 119 | $BLZR | Trailblazer Acquisition Corp. | $50,693 | 0.0% | NEW | — |
| 120 |  $PANWCALL | Palo Alto Networks Inc | $25,800 | — | NEW | 66.5 |
| 121 | $MKLY | McKinley Acquisition Corp | $11,010 | 0.0% | NEW | — |
| 122 | $INAC | Indigo Acquisition Corp. | $10,320 | 0.0% | NEW | — |
| 123 |  $DAIC | CID Holdco, Inc. | $7,490 | 0.0% | NEW | — |
| 124 |  $SCAG | Scage Future | $6,533 | 0.0% | NEW | — |
| 125 | — | TEVOGEN BI | $6,149 | 0.0% | NEW | — |
| 126 | — | MULTISENSO | $5,589 | 0.0% | NEW | — |
| 127 | — | BOREALIS F | $4,671 | 0.0% | NEW | — |
| 128 |  $QQQPUT | INVESCO QQQ TRUST, SERIES 1 | $1,560 | — | NEW | — |
New Positions (128)
$HOLX HOLOGIC INC$235.7M$AL AIR LEASE CORP$185.7M$FOLD AMICUS THERAPEUTICS, INC.$122.1M$SDA SunCar Technology Group Inc.$93.1M$OS OneStream, Inc.$76.5M$DAWN Day One Biopharmaceuticals, Inc.$40.0M$SNOW Snowflake Inc.$30.8M$DUK Duke Energy CORP$27.7M$CUK CARNIVAL PLC$25.3M$NET Cloudflare, Inc.$25.2M$LYV Live Nation Entertainment, Inc.$22.9M$ON ON SEMICONDUCTOR CORP$19.7M$AKAM AKAMAI TECHNOLOGIES INC$17.2M$KLAR Klarna Group plc$14.8M$GOOGL Alphabet Inc.$14.4MBrowse Top Institutional Investors
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