WHITEBOX ADVISORS LLC
MINNEAPOLIS, MN · CIK 1257391 · 13F filing filed 2026-08-14
SEC-registered investment adviser since 2006 · limited liability company
- Assets managed$15.7bn
- Staff67 · 35 in investment roles
- Main clients (by assets)Private funds 100%
- Private funds10 (5 hedge) · $15.7bn gross assets
- Websitewhiteboxadvisors.com
- Form ADV · 2026-03-25SEC adviser record
- Legal entityWHITEBOX ADVISORS LLC (US)
$6.2bn
reported value
-12.3% vs Q1 2026
643positions
35.5%in top 10
180 new
34 added
48 reduced
87 sold out
vs Q1 2026
Options: 3 call positions ($22.7m notional), 21 put positions ($1.4bn notional) – listed below, not included above.
Holdings, Q2 2026
The small lines show how much was held over the last 4 quarters (adjusted for stock splits).
| Security | Value | Change |
|---|---|---|
| ECHOSTAR CORP ECHO 3.875 11.30.30 · principal | $319.1m5.15% | Unchanged |
| SPHERE ENTERTAINMENT CO SPHR 3.5 12.01.28 · principal | $299.4m4.83% | Reduced -3.4m |
| SNOWFLAKE INC SNOW 0 10.01.29 · principal | $256.9m4.15% | Added +2.5m |
| ALIBABA GROUP HLDG LTD BABA 0.5 06.01.31 · principal | $226.9m3.66% | Added +32.5m |
| SUPER MICRO COMPUTER INC SMCI 0 06.15.30 · principal | $213.2m3.44% | New |
| APPLIED DIGITAL CORP APLD 2.75 06.01.30 · principal | $201.9m3.26% | Reduced -10.1m |
| GAMESTOP CORP GME 0 04.01.30 · principal | $198.0m3.20% | New |
| GAMESTOP CORP GME 0 06.15.32 · principal | $176.3m2.85% | New |
| PENUMBRA INC PEN | $160.0m2.58% | Added +61.9k |
| CLOUDFLARE INC NET 0 06.15.30 · principal | $149.6m2.42% | New |
| BIO-TECHNE CORP TECH | $148.4m2.40% | New |
| COINBASE GLOBAL INC COIN 0.25 04.01.30 · principal | $147.4m2.38% | Added +44.0m |
| UBER TECHNOLOGIES INC UBER 0 05.15.28 · principal | $144.3m2.33% | New |
| WEBSTER FINL CORP WBS | $119.2m1.92% | Reduced -365.0k |
| SNOWFLAKE INC SNOW 0 10.01.27 · principal | $112.3m1.81% | Reduced -70.0m |
| TRIP COM GROUP LTD TCOM 0.75 06.15.29 · principal | $110.5m1.78% | Reduced -19.5m |
| GDS HLDGS LTD GDSHDG 2.25 06.01.32 · principal | $108.0m1.74% | New |
| STRATEGY INC MSTR 2.25 06.15.32 · principal | $107.8m1.74% | Unchanged |
| CAESARS ENTERTAINMENT INC NE CZR | $102.0m1.65% | Added +3.3m |
| CENTRUS ENERGY CORP LEU 2.25 11.01.30 · principal | $90.3m1.46% | Unchanged |
| WOLFSPEED INC WOLF 2.5 06.15.31 · principal | $84.0m1.36% | Reduced -149.0k |
| RIVIAN AUTOMOTIVE INC RIVN 3.625 10.15.30 · principal | $82.3m1.33% | Unchanged |
| JETBLUE AIRWAYS CORP JBLU 2.5 09.01.29 · principal | $75.5m1.22% | Reduced -4.0m |
| AZUL S A AZUL | $75.2m1.21% | New |
| SUPER MICRO COMPUTER INC SMCI 7 06.01.29 | $72.7m1.17% | New |
| MARA HOLDINGS INC MARA 0 03.01.30 · principal | $72.2m1.17% | Added +2.4m |
| LUMENTUM HLDGS INC LITE 0.5 12.15.26 · principal | $62.8m1.01% | Reduced -24.8m |
| VALARIS LTD VAL | $61.8m1.00% | Added +266.8k |
| APOGEE THERAPEUTICS INC COM | $59.7m0.96% | New |
| MARA HOLDINGS INC MARA 2.125 09.01.31 · principal | $55.5m0.90% | Unchanged |
| CLEANSPARK INC CLSK 0 06.15.30 · principal | $54.3m0.88% | Added +13.0m |
| RUBRIK INC. RBRK 0 06.15.30 · principal | $53.5m0.86% | New |
| UPSTART HLDGS INC UPST 1 11.15.30 · principal | $53.4m0.86% | Added +4.8m |
| STRATEGY INC MSTR 0 03.01.30 · principal | $52.8m0.85% | Added +8.0m |
| UPSTART HLDGS INC UPST 2 10.01.29 · principal | $47.2m0.76% | Reduced -23.5m |
| SITIME CORP SITM 0 06.15.31 · principal | $47.0m0.76% | New |
| GULFPORT ENERGY CORP GPOR | $46.6m0.75% | Added +55.0k |
| SUPER MICRO COMPUTER INC SMCI 3.5 03.01.29 · principal | $46.2m0.75% | New |
| TRIPLE FLAG PRECIOUS METAL TFPM | $45.5m0.73% | Unchanged |
| ARRAY TECHNOLOGIES INC ARRY 2.875 07.01.31 · principal | $41.1m0.66% | New |
| MARA HOLDINGS INC MARA 0 06.01.31 · principal | $40.7m0.66% | Reduced -10.0m |
| WARNER BROS DISCOVERY INC WBD | $40.7m0.66% | Reduced -90.0k |
| STRATEGY INC MSTR 0.625 09.15.28 · principal | $36.5m0.59% | Reduced -6.2m |
| ORACLE CORP ORCL 6.5 01.15.29 D | $36.0m0.58% | Reduced -100.0k |
| HEICO CORP NEW HEI.A | $34.1m0.55% | Added +7.4k |
| NUVALENT INC COM | $34.0m0.55% | New |
| ENCORE CAP GROUP INC ECPG 4 03.15.29 · principal | $33.7m0.54% | Reduced -18.7m |
| HERBALIFE LTD HLF 4.25 06.15.28 · principal | $33.6m0.54% | Unchanged |
| OFFICE PPTYS INCOME TR OPI | $29.7m0.48% | New |
| IREN LIMITED IREN 3.25 06.15.30 · principal | $28.5m0.46% | Unchanged |
| FLUENCE ENERGY INC FLNC 2.25 06.15.30 · principal | $25.6m0.41% | Unchanged |
| AMC NETWORKS INC AMCX 4.25 02.15.29 * · principal | $24.9m0.40% | Reduced -291.0k |
| LIBERTY LIVE HOLDINGS INC LLYVK | $23.0m0.37% | Added +56.6k |
| CHART INDS INC GTLS | $20.9m0.34% | Reduced -658.8k |
| IREN LIMITED IREN 3.5 12.15.29 IREN · principal | $19.2m0.31% | New |
| OMEROS CORP OMER 9.5 06.15.29 · principal | $17.7m0.29% | Reduced -8.5m |
| DOORDASH INC DASH 0 05.15.30 · principal | $16.5m0.27% | New |
| SERVICE PPTYS TR COM SH BEN INT | $16.2m0.26% | Added +5.8m |
| SUNRUN INC RUN 4 03.01.30 · principal | $16.1m0.26% | Reduced -7.0m |
| GRANITE CONSTR INC GVA 3.25 06.15.30 · principal | $15.7m0.25% | Reduced -2.5m |
| XEROX HOLDINGS CORP XRX 3.75 03.15.30 · principal | $15.3m0.25% | Unchanged |
| SEMTECH CORP SMTC 1.625 11.01.27 · principal | $15.1m0.24% | Unchanged |
| CHORD ENERGY CORPORATION CHRD | $14.2m0.23% | Reduced -35.0k |
| NIO INC NIO 4.625 10.15.30 · principal | $13.7m0.22% | Added +3.7m |
| STRATEGY INC MSTR 0.875 03.15.31 · principal | $13.4m0.22% | Added +2.0m |
| SM ENERGY CO SM | $13.0m0.21% | Reduced -105.7k |
| COMMUNITY HEALTH SYS INC NEW CYH | $12.5m0.20% | Added +604.9k |
| RIVIAN AUTOMOTIVE INC RIVN 4.625 03.15.29 · principal | $11.8m0.19% | New |
| AMERICAN AXLE & MFG HLDGS IN DCH | $11.7m0.19% | Reduced -134.4k |
| LIBERTY BROADBAND CORP LBRDA | $11.6m0.19% | Unchanged |
| BAUSCH PLUS LOMB CORP BLCO | $11.4m0.18% | Reduced -414.9k |
| GRIFOLS S A GRFS | $11.4m0.18% | Reduced -464.3k |
| T1 ENERGY INC TE 5.25 12.01.30 · principal | $10.4m0.17% | Added +3.0m |
| GOLAR LNG LTD GLNG 2.75 12.15.30 · principal | $10.2m0.17% | New |
| FOX CORP FOX | $9.3m0.15% | Added +23.6k |
| WHEELS UP EXPERIENCE INC UP | $9.2m0.15% | New |
| T1 ENERGY INC TE 4 04.15.31 · principal | $8.7m0.14% | New |
| NEWS CORP NEW NWSA | $8.5m0.14% | Added +274.6k |
| VENDOME ACQUISITION CORP I VNME | $8.4m0.14% | Unchanged |
| TITAN ACQUISITION CORP TACH | $8.3m0.13% | Unchanged |
| GIGCAPITAL8 CORP GIW | $8.1m0.13% | Unchanged |
| IDEA ACQUISITION CORP IACO | $7.9m0.13% | New |
| FIFTH ERA ACQUISITION CORP I FERA | $7.8m0.13% | Unchanged |
| WILLIS LEASE FIN CORP WLFC 2.5 05.15.31 · principal | $7.6m0.12% | New |
| HARVARD AVE ACQUISITION CORP HAVA | $7.6m0.12% | Unchanged |
| UPSTART HLDGS INC UPST 0.25 08.15.26 · principal | $7.5m0.12% | Unchanged |
| GROUPON INC GRPN 6.25 03.15.27 * · principal | $7.1m0.11% | Unchanged |
| X3 ACQUISITION CORP LTD XCBE | $7.0m0.11% | Unchanged |
| PONO CAP FOUR INC PONO | $7.0m0.11% | New |
| GOODYEAR TIRE & RUBR CO GT | $6.8m0.11% | Added +159.7k |
| LIBERTY BROADBAND CORP LBRDK | $6.8m0.11% | Reduced -1.3m |
| D. BORAL ARC ACQ I CORP. SHS CL A | $6.8m0.11% | Unchanged |
| SIZZLE ACQUISITION CORP. II SZZL | $6.7m0.11% | Unchanged |
| SOULPOWER ACQUISITION CORP SOUL | $6.7m0.11% | Unchanged |
| MGM RESORTS INTERNATIONAL MGM | $6.6m0.11% | Reduced -49.3k |
| UNDER ARMOUR INC UAA | $6.6m0.11% | Reduced -157.8k |
| VOYAGER TECHNOLOGIES INC VOYG | $6.3m0.10% | New |
| ALBERTSONS COS INC ACI | $6.2m0.10% | Added +134.9k |
| WEN ACQUISITION CORP WENN | $6.2m0.10% | Unchanged |
| BROOKFIELD RENEWABLE PARTNER BEP | $5.9m0.10% | Unchanged |
Sold out since Q1 2026
| Security | Value then |
|---|---|
| WESTERN DIGITAL CORP WDC 3 11.15.28 | $1.5bn204.4m shares |
| SUPER MICRO COMPUTER INC SMCI 3.5 03.01.29 | $110.5m138.6m shares |
| TERNS PHARMACEUTICALS INC | $52.7m1.0m shares |
| MASIMO CORP MASI | $48.0m270.0k shares |
| CARNIVAL PLC CUK | $33.5m1.3m shares |
| WAYFAIR INC W 3.5 11.15.28 | $31.2m17.9m shares |
| LUMENTUM HLDGS INC LITE | $21.6m30.8k shares |
| PTC THERAPEUTICS INC PTCT 1.5 09.15.26 | $17.7m13.3m shares |
| NABORS INDS INC NBR 1.75 06.15.29 | $15.4m17.0m shares |
| IAC INC PPLI | $8.7m217.4k shares |
| IDEA ACQUISITION CORP IACOU | $7.9m797.4k shares |
| WHEELS UP EXPERIENCE INC | $7.4m23.8m shares |
| PONO CAP FOUR INC PONOU | $7.0m700.0k shares |
| SOLARIS ENERGY INFRAS INC SEI 0.25 10.01.31 | $6.2m5.0m shares |
| GIGCAPITAL7 CORP HDRN | $5.9m550.0k shares |
| CARTESIAN GROWTH CORP III FAC | $5.6m550.0k shares |
| ARMADA ACQUISITION CORP III AACIU | $5.5m550.0k shares |
| SIM ACQUISITION CORP. I SIMA | $5.4m500.0k shares |
| REAL ASSET ACQUISITION CORP | $5.2m500.0k shares |
| KOSMOS ENERGY LTD KOS 3.125 03.15.30 | $5.1m6.5m shares |
| ON SEMICONDUCTOR CORP ON 0.5 03.01.29 | $4.9m5.0m shares |
| HCM IV ACQUISITION CORP HACQU | $4.5m450.0k shares |
| NUTANIX INC NTNX 0.5 12.15.29 | $4.5m5.0m shares |
| AVERIN CAP ACQUISITION CORP ACAAU | $4.5m450.0k shares |
| ILLUMINATION ACQUISITIO CORP ILLUU | $4.5m450.0k shares |
Options (notional value)
| Underlying | Notional | Change |
|---|---|---|
| SPDR S&P 500 ETF TR SPY · Put | $373.4m500.0k shares | Unchanged |
| ISHARES TR IWM · Put | $150.2m500.0k shares | Reduced |
| NVIDIA CORPORATION NVDA · Put | $140.1m700.0k shares | Reduced |
| NEBIUS GROUP N.V. NBIS · Put | $138.1m500.0k shares | Unchanged |
| SUPER MICRO COMPUTER INC SMCI · Put | $120.3m4.1m shares | Reduced |
| TAIWAN SEMICONDUCTOR MFG LTD TSM · Put | $95.5m200.0k shares | Unchanged |
| MICRON TECHNOLOGY INC MU · Put | $92.3m80.0k shares | New |
| APPLE INC AAPL · Put | $72.3m250.0k shares | Added |
| VANECK ETF TRUST SMH · Put | $65.6m100.0k shares | New |
| COREWEAVE INC CRWV · Put | $39.8m400.0k shares | New |
| MARA HOLDINGS INC MARA · Put | $39.3m2.8m shares | Reduced |
| WARNER BROS DISCOVERY INC WBD · Put | $29.3m1.1m shares | Unchanged |
| LUMEN TECHNOLOGIES INC LUMN · Put | $26.9m3.5m shares | Unchanged |
| TIDEWATER INC NEW TDW · Put | $18.4m276.1k shares | New |
| JETBLUE AWYS CORP JBLU · Call | $15.8m2.8m shares | Added |
| MEDICAL PPTYS TRUST INC MPT · Put | $6.9m1.5m shares | Reduced |
| XEROX HOLDINGS CORP XRX · Put | $6.3m2.0m shares | Unchanged |
| BITDEER TECHNOLOGIES GROUP BTDR · Put | $6.2m392.8k shares | Unchanged |
| TRANSOCEAN LTD RIG · Put | $4.9m1.0m shares | Unchanged |
| MARA HOLDINGS INC MARA · Call | $4.9m350.0k shares | Reduced |
| SAREPTA THERAPEUTICS INC SRPT · Put | $3.9m214.6k shares | Unchanged |
| HERTZ GLOBAL HLDGS INC HTZ · Put | $3.3m1.5m shares | Unchanged |
| SABRE CORP SABR · Call | $2.1m1.0m shares | Unchanged |
| AMC ENTMT HLDGS INC AMC · Put | $1.9m1.0m shares | Unchanged |
Stakes above 5%
Companies where this manager has reported owning more than 5% of a class of shares, on Schedule 13D (may seek influence) or 13G (passive): its latest filing for each, from 19 Dec 2024 on.
| Company | Stake |
|---|---|
| HELIX ENERGY SOLUTIONS GRP I HOS · 13G · filed 2026-09-09 | 15.0%≈ $331.0m |
| KLX ENERGY SERVICS HOLDNGS I KLXE · 13D · filed 2026-10-06 | 12.4%≈ $33.7m |
| ELECTRA BATTERY MATERIALS CO ELBM · 13G · filed 2026-08-14 | 9.9%≈ $6.5m |
| MAXEON SOLAR TECHNOLOGIES LT MAXNQ · 13G · filed 2026-06-26 | 8.5% |
| OFFICE PPTYS INCOME TR OPI · 13G · filed 2026-07-06 | 8.2%≈ $30.6m |
| PONO CAP FOUR INC PONO · 13G · filed 2026-03-23 | 5.7%≈ $7.0m |
| COPPER PROPERTY CTL PASS THR CPPTL · 13G · filed 2026-07-10 | 5.5% |
| MERCER INTL INC MERC · 13G · filed 2026-08-14 | 5.4%≈ $2.4m |
| MAYWOOD ACQUISITION CORP 2 MYX · 13G · filed 2026-04-22 | 5.2%≈ $5.4m |