OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC)
Follow13F filer, CIK 1132716, CHICAGO, IL
OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) reported $3,686,628,704 across 367 holdings for the quarter ended 2025-06-30, in a 13F-HR filed 2025-08-14. Its ten largest share positions make up 57.24% of the portfolio.
Filed (acceptance time not in the bulk data set), ingested 13F-HR 0001132716-25-000019
- Period
- 2025-06-30
- Reported value
- $3.69B
- Holdings
- 367
- Top 10 weight
- 57.24%
- New
- 161
- Sold out
- 116
Largest buys vs the previous quarter
| Security | Shares change | Approx. value |
|---|---|---|
| SKXnew | +3,598,177 | $227M |
| BLUEPRINT MEDICINES CORPadded | +1,698,722 | $218M |
| WALGREENS BOOTS ALLIANCE INCadded | +15,003,457 | $172M |
| DUN & BRADSTREET HLDGS INCnew | +13,678,842 | $124M |
| INFORMATICA INCnew | +4,549,354 | $111M |
Ranked by the share change valued at this quarter's implied price (value over shares in the 13F). A position sold out is valued at the previous quarter's price, its last report.
Largest sells vs the previous quarter
| Security | Shares change | Approx. value |
|---|---|---|
| DISCOVER FINANCIAL SERVICESexited | -2,389,191 | -$408M |
| INTRA-CELLULAR THERAPIES INCexited | -3,091,133 | -$408M |
| HESS CORPreduced | -1,856,094 | -$257M |
| BEACON ROOFING SUPPLY INCexited | -1,575,016 | -$195M |
| BERRY GLOBAL GROUP INCexited | -1,955,816 | -$137M |
Ranked by the share change valued at this quarter's implied price (value over shares in the 13F). A position sold out is valued at the previous quarter's price, its last report.
Back to all 278 share positions
Options
Puts and calls, as filed. The amount and value describe the underlying shares, not the option premium, so they stay out of % of portfolio (H5).
| Security | Type | Amount | Value | Change |
|---|---|---|---|---|
| AALAMERICAN AIRLINES GROUP INC Stock | put | 10,810,000 | $4.41M | +1,385,000 |
| LUCID GROUP INCLUCID GROUP INC COM | put | 2,965,100 | $2.65M | +125,000 |
| MGNIMAGNITE INC Stock | call | 432,000 | $1.93M | +325,000 |
| CROXCROCS INC Stock | call | 125,000 | $1.24M | new |
| HTZHERTZ GLOBAL HLDGS INC COM NEW | put | 1,194,300 | $1.18M | 0 |
| MATMATTEL INC COM | call | 355,000 | $985K | new |
| FFORD MTR CO Stock | put | 924,900 | $868K | +729,400 |
| HOGHARLEY DAVIDSON INC Stock | put | 375,000 | $841K | +135,000 |
| RIGTRANSOCEAN LTD Stock | put | 883,400 | $766K | +80,000 |
| CCCHEMOURS CO Stock | put | 46,900 | $638K | 0 |
| SPYSTATE STR SPDR S&P 500 ETF T SHS | put | 190,500 | $628K | +105,500 |
| VISNVISTANCE NETWORKS INC COM | call | 550,000 | $578K | +100,000 |
| MGMMGM RESORTS INTERNATIONAL COM | put | 82,600 | $452K | 0 |
| CHTRCHARTER COMMUNICATIONS INC COM | put | 20,500 | $383K | 0 |
| HLFHERBALIFE LTD COM SHS | put | 82,400 | $354K | 0 |
| FOURSHIFT4 PMTS INC Stock | call | 35,000 | $354K | new |
| MRVLMARVELL TECHNOLOGY INC COM | call | 75,000 | $341K | new |
| REPLREPLIMUNE GROUP INC COMMON STOCK | call | 169,000 | $308K | new |
| TSLATESLA INC COM | put | 12,500 | $289K | 0 |
| IWMISHARES TR SHS | call | 105,000 | $288K | new |
| AAPLAPPLE INC COM | call | 74,000 | $279K | new |
| VSATVIASAT INC COM | put | 73,300 | $238K | 0 |
| RAREULTRAGENYX PHARMACEUTICAL IN COM | call | 60,000 | $238K | new |
| SABRSABRE CORP Stock | put | 688,600 | $238K | 0 |
| CLMTCALUMET INC COM | put | 175,000 | $234K | new |
| XIFRXPLR INFRASTRUCTURE LP COM UNIT PART IN | put | 20,600 | $194K | 0 |
| FSLRFIRST SOLAR INC Stock | call | 15,000 | $189K | new |
| HYGISHARES TR IBOXX HI YD ETF | put | 500,000 | $172K | new |
| UALUNITED AIRLS HLDGS INC Stock | put | 87,500 | $165K | new |
| LVSLAS VEGAS SANDS CORP Stock | put | 37,200 | $164K | 0 |
| GLDSPDR GOLD TR GOLD SHS | call | 31,500 | $154K | new |
| OCULOCULAR THERAPEUTIX INC COM | call | 120,000 | $153K | 0 |
| XBISPDR SERIES TRUST S&P BIOTECH | put | 105,000 | $149K | -95,000 |
| NCLHNORWEGIAN CRUISE LINE HLDGS Stock | put | 188,800 | $142K | 0 |
| RIGTRANSOCEAN LTD Stock | call | 400,000 | $140K | new |
| INSMINSMED INC Stock | put | 27,000 | $138K | new |
| LYVLIVE NATION ENTERTAINMENT IN Stock | put | 32,500 | $137K | 0 |
| MPTMEDICAL PROPERTIES TRUST INC REIT | put | 396,500 | $131K | 0 |
| BGSB & G FOODS INC COM | put | 113,600 | $128K | 0 |
| QUREUNIQURE NV SHS | call | 80,000 | $124K | +15,000 |
| QQQINVESCO QQQ TR COM | put | 20,000 | $117K | +4,000 |
| PTONPELOTON INTERACTIVE INC CL A COM | put | 400,000 | $114K | +109,500 |
| TLTISHARES TR 20 YR TR BD ETF | put | 600,000 | $102K | new |
| STWDSTARWOOD PPTY TR INC REIT | put | 172,500 | $90.6K | 0 |
| INSPINSPIRE MED SYS INC Stock | put | 10,000 | $85.5K | new |
| SLNOSOLENO THERAPEUTICS INC COM | call | 10,000 | $74.5K | -5,000 |
| IRMIRON MTN INC DEL REIT | put | 25,000 | $70K | new |
| XBISPDR SERIES TRUST S&P BIOTECH | call | 70,000 | $67.2K | new |
| ALKSALKERMES PLC SHS | put | 25,000 | $58.1K | new |
| TPHTRI POINTE HOMES INC COM | put | 18,000 | $57.1K | 0 |
| INCYINCYTE CORP Stock | call | 35,000 | $49.8K | -20,000 |
| OMFONEMAIN HLDGS INC Stock | put | 34,400 | $45.6K | 0 |
| CAPRCAPRICOR THERAPEUTICS INC COMMON STOCK | put | 33,000 | $43.7K | new |
| XLVSELECT SECTOR SPDR TR SHS | put | 70,000 | $40.6K | new |
| SLNOSOLENO THERAPEUTICS INC COM | put | 12,000 | $40.2K | -6,000 |
| BIIBBIOGEN INC Stock | call | 20,000 | $30K | new |
| FEFIRSTENERGY CORP COM | put | 26,000 | $27.9K | 0 |
| CRSPCRISPR THERAPEUTICS AG Stock | call | 10,000 | $27.2K | new |
| USOUNITED STS OIL FD LP COM | put | 72,000 | $25.6K | new |
| AXGNAXOGEN INC COM | call | 50,000 | $23.8K | new |
| MRNAMODERNA INC COM | call | 35,000 | $23.4K | new |
| VERAVERA THERAPEUTICS INC COMMON STOCK | call | 40,000 | $23K | 0 |
| Vital Energy IncVital Energy Inc Common Stock | call | 70,000 | $22.8K | new |
| JBLUJETBLUE AIRWAYS CORP COM | call | 400,000 | $22K | new |
| VNOVORNADO RLTY TR SH BEN INT | put | 33,500 | $20.1K | 0 |
| AAPADVANCE AUTO PARTS INC COM | put | 12,000 | $16.7K | new |
| NVSNOVARTIS AG ADR | call | 15,000 | $13.5K | new |
| ETENERGY TRANSFER L P COM UT LTD PTN | call | 320,000 | $12.8K | 0 |
| SYFSYNCHRONY FINANCIAL STOK | put | 21,900 | $12.6K | 0 |
| BCYCBICYCLE THERAPEUTICS PLC SPONSORED ADS | call | 50,000 | $11.2K | new |
| CRWVCOREWEAVE INC COM | put | 100,000 | $10.2K | new |
| BMYBRISTOL-MYERS SQUIBB CO COM | call | 40,000 | $9K | new |
| COOCOOPER COS INC COM | put | 20,000 | $8K | +5,000 |
| CAKECHEESECAKE FACTORY INC COM | put | 24,500 | $7.35K | new |
| BORRBORR DRILLING LTD COMMON STOCK | call | 200,000 | $5K | 0 |
| DKNGDRAFTKINGS INC NEW COM CL A | put | 15,000 | $4.2K | new |
| NVDANVIDIA CORPORATION COM | put | 20,000 | $3.5K | new |
| NVONOVO-NORDISK A S ADR | call | 20,000 | $3.4K | new |
| GILDGILEAD SCIENCES INC COM | put | 18,000 | $360 | -8,000 |
Principal amounts
Notes and convertibles filed as a face amount (PRN). A face amount is never added to a share count (H6).
| Security | Type | Amount | Value | Change |
|---|---|---|---|---|
| PELOTON INTERACTIVE INCPELOTON INTERACTIVE INC NOTE 2/1 | principal | 27,352,000 | $26.4M | 0 |
| HALOZYME THERAPEUTICS INCHALOZYME THERAPEUTICS INC NOTE 1.000% 8/1 | principal | 22,500,000 | $25.7M | +7,500,000 |
| SOUTHERN COSOUTHERN CO NOTE 4.500% 6/1 | principal | 17,500,000 | $19.2M | new |
| AMERICAN WTR CAP CORPAMERICAN WTR CAP CORP NOTE 3.625% 6/1 | principal | 16,000,000 | $16.1M | new |
| DUKE ENERGY CORP NEWDUKE ENERGY CORP NEW CONV BND | principal | 15,000,000 | $15.9M | new |
| DRAFTKINGS INC NEWDRAFTKINGS INC NEW CNV | principal | 17,000,000 | $15.3M | +15,000,000 |
| SPOTIFY USA INCSPOTIFY USA INC NOTE 3/1 | principal | 10,000,000 | $15.2M | 0 |
| FIRSTENERGY CORPFIRSTENERGY CORP NOTE 4.000% 5/0 | principal | 10,000,000 | $10.1M | new |
| AKAMAI TECHNOLOGIES INCAKAMAI TECHNOLOGIES INC NOTE 0.375% 9/0 | principal | 9,500,000 | $9.23M | +2,000,000 |
| BEYOND MEAT INCBEYOND MEAT INC NOTE 3/1 | principal | 29,000,000 | $2.55M | 0 |
Sold out in Q2 2025
Positions in the previous quarter's report that this quarter's report no longer lists.
| Security | Shares before | Value before | Type |
|---|---|---|---|
| DISCOVER FINANCIAL SERVICESDISCOVER FINANCIAL SERVICES | 2,389,191 | $408M | shares |
| INTRA-CELLULAR THERAPIES INCINTRA-CELLULAR THERAPIES INC | 3,091,133 | $408M | shares |
| BEACON ROOFING SUPPLY INCBEACON ROOFING SUPPLY INC | 1,575,016 | $195M | shares |
| BERRY GLOBAL GROUP INCBERRY GLOBAL GROUP INC | 1,955,816 | $137M | shares |
| H&E EQUIPMENT SERVICES INCH&E EQUIPMENT SERVICES INC | 1,085,190 | $103M | shares |
| NORDSTROM INCNORDSTROM INC | 3,950,000 | $96.6M | shares |
| UNITED STATES STL CORP NEWUNITED STATES STL CORP NEW | 1,253,217 | $53M | shares |
| MONEYLION INCMONEYLION INC | 436,111 | $37.7M | shares |
| RSGREPUBLIC SVCS INC | 88,200 | $21.4M | shares |
| CNICANADIAN NATL RY CO | 133,975 | $13.1M | shares |
| FUBOTV INCFUBOTV INC | 13,500,000 | $13M | principal |
| XELXCEL ENERGY INC | 182,510 | $12.9M | shares |
| CCRNCROSS CTRY HEALTHCARE INC | 804,764 | $12M | shares |
| NINISOURCE INC | 277,340 | $11.1M | shares |
| GPKGRAPHIC PACKAGING HLDG CO | 411,200 | $10.7M | shares |
| CRHCRH PLC | 113,520 | $9.99M | shares |
| SAROSTANDARDAERO INC | 300,000 | $7.99M | shares |
| APHAMPHENOL CORP | 119,940 | $7.87M | shares |
| CACICACI INTL INC | 20,950 | $7.69M | shares |
| EQCEQUITY COMMONWEALTH | 4,099,688 | $6.6M | shares |
| FTVFORTIVE CORP | 81,300 | $5.95M | shares |
| FUTUFUTU HLDGS LTD | 54,922 | $5.62M | shares |
| MAMASTERCARD INCORPORATED | 9,300 | $5.1M | shares |
| BABAALIBABA GROUP HLDG LTD | 35,447 | $4.69M | shares |
| CARTESIAN GROWTH CORP IICARTESIAN GROWTH CORP II | 356,946 | $4.24M | shares |
| CHURCHILL CAPITAL CORP IXCHURCHILL CAPITAL CORP IX | 387,480 | $4.21M | shares |
| BEAGUBOLD EAGLE ACQUISITION CORP | 400,000 | $4.13M | shares |
| KMIKINDER MORGAN INC DEL | 144,600 | $4.13M | shares |
| STLDSTEEL DYNAMICS INC | 32,450 | $4.06M | shares |
| LHXL3HARRIS TECHNOLOGIES INC | 19,020 | $3.98M | shares |
| CMCCOMMERCIAL METALS CO | 85,020 | $3.91M | shares |
| AMXAMERICA MOVIL SAB DE CV | 253,922 | $3.61M | shares |
| OPTUOPTIMUM COMMUNICATIONS INC | 1,200,000 | $3.19M | shares |
| LOKVULIVE OAK ACQUISITION CORP V | 300,000 | $3.02M | shares |
| HUBBHUBBELL INC | 9,000 | $2.98M | shares |
| BZKANZHUN LIMITED | 143,000 | $2.74M | shares |
| APTVAPTIV PLC | 46,000 | $2.74M | shares |
| EWZISHARES INC | 100,000 | $2.58M | shares |
| MLACUMOUNTAIN LAKE ACQUISITION CO | 250,000 | $2.58M | shares |
| POOLPOOL CORP | 7,724 | $2.46M | shares |
| LPLALPL FINL HLDGS INC | 7,500 | $2.45M | shares |
| CRMSALESFORCE INC | 8,896 | $2.39M | shares |
| ALDEL FINL II INCALDEL FINL II INC | 225,000 | $2.31M | shares |
| NHICUNEWHOLD INVT CORP III | 225,000 | $2.27M | shares |
| TWTRADEWEB MKTS INC | 15,000 | $2.23M | shares |
| AAPLAPPLE INC | 10,000 | $2.22M | shares |
| ONONON HLDG AG | 50,000 | $2.2M | shares |
| GMGENERAL MTRS CO | 40,300 | $1.9M | shares |
| GOOGLALPHABET INC | 11,900 | $1.84M | shares |
| TLTISHARES TR | 1,650,000 | $1.68M | call |
| COLOMBIERACQUISITIONCORPICOLOMBIERACQUISITIONCORPI | 150,000 | $1.6M | shares |
| INFINERA CORPINFINERA CORP | 1,250,000 | $1.6M | principal |
| ARES ACQUISITION CORP IIARES ACQUISITION CORP II | 125,000 | $1.39M | shares |
| EVLVEVOLV TECHNOLOGIES HLDNGS IN | 430,223 | $1.34M | shares |
| DGDOLLAR GEN CORP | 15,000 | $1.32M | shares |
| XRXXEROX HOLDINGS CORP | 278,300 | $1.22M | put |
| DADA NEXUS LTD NPV ADRDADA NEXUS LTD NPV ADR | 618,986 | $1.15M | shares |
| VERONA PHARMA PLCVERONA PHARMA PLC | 17,150 | $1.09M | shares |
| TPRTAPESTRY INC | 15,000 | $1.06M | shares |
| GAPGAP INC | 50,000 | $1.03M | shares |
| KRKROGER CO | 15,000 | $1.02M | shares |
| AURAAURA BIOSCIENCES INC | 151,108 | $885K | shares |
| AKROAKERO THERAPEUTICS INC | 18,800 | $761K | shares |
| TSLATESLA INC | 2,500 | $648K | shares |
| TALTAL ED GROUP | 37,000 | $489K | shares |
| METAMETA PLATFORMS INC | 16,000 | $452K | put |
| ROIVROIVANT SCIENCES LTD | 42,819 | $432K | shares |
| WRDWERIDE INC | 31,350 | $425K | shares |
| JANXJANUX THERAPEUTICS INC | 15,040 | $406K | shares |
| MLCOMELCO RESORTS AND ENTMNT LTD | 76,800 | $405K | shares |
| BMRNBIOMARIN PHARMACEUTICAL INC | 5,258 | $372K | shares |
| XLISELECT SECTOR SPDR TR | 113,500 | $361K | put |
| GRABGRAB HOLDINGS LIMITED | 70,291 | $318K | shares |
| SPRINGWORKS THERAPEUTICS INCSPRINGWORKS THERAPEUTICS INC | 45,000 | $315K | put |
| Tourmaline Bio IncTourmaline Bio Inc | 17,860 | $272K | shares |
| LIONSGATE STUDIOS CORPLIONSGATE STUDIOS CORP | 35,000 | $261K | shares |
| CGEMCULLINAN THERAPEUTICS INC | 32,903 | $249K | shares |
| DYNDYNE THERAPEUTICS INC | 21,422 | $224K | shares |
| DRUGBRIGHT MINDS BIOSCIENCES INC | 5,963 | $215K | shares |
| EHEHANG HLDGS LTD | 10,000 | $209K | shares |
| ARQTARCUTIS BIOTHERAPEUTICS INC | 13,201 | $206K | shares |
| CATXPERSPECTIVE THERAPEUTICS INC | 96,060 | $205K | shares |
| SLNSILENCE THERAPEUTICS PLC | 62,639 | $177K | shares |
| IWMISHARES TR | 45,000 | $172K | put |
| EWTXEDGEWISE THERAPEUTICS INC | 45,000 | $169K | put |
| CONNECT BIOPHARMA HLDGS LTDCONNECT BIOPHARMA HLDGS LTD | 268,946 | $148K | shares |
| ERASERASCA INC | 75,627 | $104K | shares |
| KPTIKARYOPHARM THERAPEUTICS INC | 23,640 | $88.4K | shares |
| CCLCARNIVAL CORP | 120,000 | $83.4K | put |
| VYNEVYNE THERAPEUTICS INC | 45,557 | $72K | shares |
| COLOMBIER ACQUISITION CORP ICOLOMBIER ACQUISITION CORP I | 90,000 | $69.3K | shares |
| CRVSCORVUS PHARMACEUTICALS INC | 20,850 | $66.3K | shares |
| CCCCC4 THERAPEUTICS INC | 39,868 | $63.8K | shares |
| X4 PHARMACEUTICALS INCX4 PHARMACEUTICALS INC | 252,602 | $59.6K | shares |
| AERAERCAP HOLDINGS NV | 112,500 | $59.1K | call |
| AESAES CORP | 150,000 | $52.5K | call |
| Veru IncVeru Inc | 101,018 | $49.5K | shares |
| INOINOVIO PHARMACEUTICALS INC | 29,375 | $47.9K | shares |
| CNTXCONTEXT THERAPEUTICS INC | 67,631 | $41.4K | shares |
| CECELANESE CORP DEL | 70,000 | $40.2K | call |
| PEPGPEPGEN INC | 26,559 | $37.3K | shares |
| Mersana Therapeutics IncMersana Therapeutics Inc | 97,731 | $33.6K | shares |
| INOZYME PHARMA INCINOZYME PHARMA INC | 34,788 | $31.7K | shares |
| ACRVACRIVON THERAPEUTICS INC | 15,576 | $31.6K | shares |
| BLUEPRINT MEDICINES CORPBLUEPRINT MEDICINES CORP | 10,000 | $30.8K | put |
| PRCTPROCEPT BIOROBOTICS CORP | 15,000 | $27.4K | put |
| OXYOCCIDENTAL PETE CORP | 90,000 | $24.6K | put |
| CCLCARNIVAL CORP | 150,000 | $24K | call |
| ARES ACQUISITION CORP II-28ARES ACQUISITION CORP II-28 | 82,711 | $23.6K | shares |
| SUTRO BIOPHARMA INCSUTRO BIOPHARMA INC | 28,278 | $18.4K | shares |
| AKAMAKAMAI TECHNOLOGIES INC | 37,500 | $14.1K | call |
| NEKTAR THERAPEUTICSNEKTAR THERAPEUTICS | 19,923 | $13.5K | shares |
| AENTWALLIANCE ENTERTAINMENT HOLDI | 60,000 | $13.4K | shares |
| PTGXPROTAGONIST THERAPEUTICS INC | 20,000 | $7.5K | call |
| Cartesian Growth Corp IICartesian Growth Corp II | 118,982 | $7.4K | shares |
| LibityLibity | 209,630 | $4.51K | shares |
How Q2 2025 was built
Available 13F filings of this filer for the quarter and their roles: the base report is the latest original or restatement, NEW HOLDINGS amendments filed after it are added (method).
| Filing | Role | Amendment | Filed | Accepted | Ingested |
|---|---|---|---|---|---|
| 13F-HR 0001132716-25-000019 | base | 2025-08-14 | acceptance time not in the bulk data set | ||
| 13F-HR/A 0001132716-25-000033 | added | new holdings | 2025-11-14 | acceptance time not in the bulk data set | |
| 13F-HR/A 0001132716-26-000006 | added | new holdings | 2026-02-13 | acceptance time not in the bulk data set | |
| 13F-HR/A 0001132716-26-000013 | added | new holdings | 2026-05-15 | acceptance time not in the bulk data set | |
| 13F-HR/A 0001132716-26-000015 | added | new holdings | 2026-08-14 | acceptance time not in the bulk data set |