WHITEBOX ADVISORS LLC — 13F Holdings & Portfolio
CIK 1257391 · latest 13F-HR filed 2026-08-14
WHITEBOX ADVISORS LLC manages $7.65B in 13F-reported U.S. long-equity assets across 667 reported positions as of its 2026-06-30 13F-HR filing. Its largest disclosed positions are SPY (4.88%), ECHO (4.17%), SPHR (3.91%). Quarter over quarter (versus its 2026-03-31 filing) the fund opened 181 new positions and exited 83; 169 existing positions rose in reported value and 111 fell.
AUM is the long-equity portion reported on Form 13F-HR. Excludes short positions, cash, foreign holdings, and non-13F assets. For informational purposes only — not investment advice.
Long-equity book
Distinct positions
Filed 2026-08-14
vs 2026-03-31
Portfolio charts
Latest quarter's book, what changed, and how the portfolio has evolved across filings.
| Name | Title / Status | Ownership | Type |
|---|
Quarter-over-quarter changes
Changes in reported position value vs the prior 13F, so price moves count too, not just shares bought or sold.
Top Adds (vs prior quarter)
- CAESARS ENTERTAINMENT INC NE$99.0M +3310.0%
- SPHERE ENTERTAINMENT CO$82.6M +38.1%
- SNOWFLAKE INC$82.2M +47.0%
- WOLFSPEED INC$52.7M +168.9%
- APPLIED DIGITAL CORP$40.6M +25.2%
Top Trims
- LUMENTUM HLDGS INC-$713.2M -99.6%
- LUMENTUM HLDGS INC-$164.1M -72.3%
- CHART INDS INC-$136.0M -86.7%
- LIBERTY BROADBAND CORP-$67.5M -90.9%
- STRATEGY INC-$67.4M -93.9%
New Positions
- SUPER MICRO COMPUTER INC$213.2M
- GAMESTOP CORP$198.0M
- GAMESTOP CORP$176.3M
- CLOUDFLARE INC$149.6M
- BIO-TECHNE CORP$148.4M
Exited Positions
- WESTERN DIGITAL CORP$1.46B
- TERNS PHARMACEUTICALS INC$52.7M
- MASIMO CORP$48.0M
- CARNIVAL PLC$33.5M
- WAYFAIR INC$31.2M
WHITEBOX ADVISORS LLC Holdings (2026-06-30)
Rows tagged Call or Put are options positions, not stock. Per SEC Form 13F-HR, Value shows the notional value of the underlying (shares covered × underlying price), not the option premium. Shares is the number of underlying shares covered (divide by 100 for contract count).
| # | Issuer | Symbol | CUSIP | Value | Weight | Shares | Type |
|---|---|---|---|---|---|---|---|
| 1 | STATE STR SPDR S&P 500 ETF T Put | SPY | 78462F103 | $373.4M | 4.88% | 500,000 | SH |
| 2 | ECHOSTAR CORP | ECHO | 278768AB2 | $319.1M | 4.17% | 102,197,086 | PRN |
| 3 | SPHERE ENTERTAINMENT CO | SPHR | 55826TAB8 | $299.4M | 3.91% | 61,117,000 | PRN |
| 4 | SNOWFLAKE INC | SNOW | 833445AD1 | $256.9M | 3.36% | 145,307,000 | PRN |
| 5 | ALIBABA GROUP HLDG LTD | BABAF | 01609WBG6 | $226.9M | 2.97% | 192,400,000 | PRN |
| 6 | SUPER MICRO COMPUTER INC | SMCI | 86800UAF1 | $213.2M | 2.79% | 240,250,000 | PRN |
| 7 | APPLIED DIGITAL CORP | APLD | 038169AB4 | $201.9M | 2.64% | 50,700,000 | PRN |
| 8 | GAMESTOP CORP | GME | 36467WAE9 | $198.0M | 2.59% | 194,350,000 | PRN |
| 9 | GAMESTOP CORP | GME | 36467WAG4 | $176.3M | 2.30% | 174,000,000 | PRN |
| 10 | PENUMBRA INC | PEN | 70975L107 | $160.0M | 2.09% | 506,881 | SH |
| 11 | ISHARES TR Put | IWM | 464287655 | $150.2M | 1.96% | 500,000 | SH |
| 12 | CLOUDFLARE INC | PSAPF | 18915MAF4 | $149.6M | 1.96% | 118,266,000 | PRN |
| 13 | BIO-TECHNE CORP | TECH | 09073M104 | $148.4M | 1.94% | 2,100,001 | SH |
| 14 | COINBASE GLOBAL INC | COIN | 19260QAF4 | $147.4M | 1.93% | 164,456,000 | PRN |
| 15 | UBER TECHNOLOGIES INC | UBER | 90353TAS9 | $144.3M | 1.89% | 125,000,000 | PRN |
| 16 | NVIDIA CORPORATION Put | NVDA | 67066G104 | $140.1M | 1.83% | 700,000 | SH |
| 17 | NEBIUS GROUP N.V. Put | NBIS | N97284108 | $138.1M | 1.80% | 500,000 | SH |
| 18 | SUPER MICRO COMPUTER INC Put | SMCI | 86800U302 | $120.3M | 1.57% | 4,100,000 | SH |
| 19 | WEBSTER FINL CORP | WBS | 947890109 | $119.2M | 1.56% | 1,560,001 | SH |
| 20 | SNOWFLAKE INC | SNOW | 833445AB5 | $112.3M | 1.47% | 67,500,000 | PRN |
| 21 | TRIP COM GROUP LTD | TRPCF | 89677QAB3 | $110.5M | 1.44% | 112,232,000 | PRN |
| 22 | GDS HLDGS LTD | GDS | 36165LAD0 | $108.0M | 1.41% | 89,200,000 | PRN |
| 23 | STRATEGY INC | MHIFF | 594972AN1 | $107.8M | 1.41% | 112,000,000 | PRN |
| 24 | CAESARS ENTERTAINMENT INC NE | CZR | 12769G100 | $102.0M | 1.33% | 3,379,426 | SH |
| 25 | TAIWAN SEMICONDUCTOR MANUFAC Put | TSM | 874039100 | $95.5M | 1.25% | 200,000 | SH |
| 26 | MICRON TECHNOLOGY INC Put | MU | 595112103 | $92.3M | 1.21% | 80,000 | SH |
| 27 | CENTRUS ENERGY CORP | LEU | 15643UAE4 | $90.3M | 1.18% | 45,600,000 | PRN |
| 28 | WOLFSPEED INC | WOLF | 977852AP7 | $84.0M | 1.10% | 21,396,000 | PRN |
| 29 | RIVIAN AUTOMOTIVE INC | RIVN | 76954AAD5 | $82.3M | 1.08% | 77,237,000 | PRN |
| 30 | JETBLUE AIRWAYS CORP | JBLU | 477143AR2 | $75.5M | 0.99% | 68,371,000 | PRN |
| 31 | AZUL S A | AZUL | 05501U601 | $75.2M | 0.98% | 8,362,136 | SH |
| 32 | SUPER MICRO COMPUTER INC | SMCIP | 86800U500 | $72.7M | 0.95% | 1,400,000 | SH |
| 33 | APPLE INC Put | AAPL | 037833100 | $72.3M | 0.95% | 250,000 | SH |
| 34 | MARA HOLDINGS INC | MARA | 565788AF3 | $72.2M | 0.94% | 72,250,000 | PRN |
| 35 | VANECK ETF TRUST Put | SMH | 92189F676 | $65.6M | 0.86% | 100,000 | SH |
| 36 | LUMENTUM HLDGS INC | LITE | 55024UAD1 | $62.8M | 0.82% | 7,300,000 | PRN |
| 37 | VALARIS LTD | VAL | G9460G101 | $61.8M | 0.81% | 850,696 | SH |
| 38 | APOGEE THERAPEUTICS INC | APGE | 03770N101 | $59.7M | 0.78% | 450,001 | SH |
| 39 | MARA HOLDINGS INC | MARA | 565788AD8 | $55.5M | 0.73% | 49,950,000 | PRN |
| 40 | CLEANSPARK INC | CLSK | 18452BAC4 | $54.3M | 0.71% | 41,635,000 | PRN |
| 41 | RUBRIK INC. | RBRK | 781154AD1 | $53.5M | 0.70% | 52,436,000 | PRN |
| 42 | UPSTART HLDGS INC | UPST | 91680MAF4 | $53.4M | 0.70% | 65,511,000 | PRN |
| 43 | STRATEGY INC | MHIFF | 594972AU5 | $52.8M | 0.69% | 59,782,000 | PRN |
| 44 | UPSTART HLDGS INC | UPST | 91680MAD9 | $47.2M | 0.62% | 41,400,000 | PRN |
| 45 | SITIME CORP | SITM | 82982TAA4 | $47.0M | 0.61% | 42,500,000 | PRN |
| 46 | GULFPORT ENERGY CORP | GPOR | 402635502 | $46.6M | 0.61% | 274,627 | SH |
| 47 | SUPER MICRO COMPUTER INC | SMCI | 86800UAB0 | $46.2M | 0.60% | 50,101,000 | PRN |
| 48 | TRIPLE FLAG PRECIOUS METAL | TFPM | 89679M104 | $45.5M | 0.59% | 1,518,950 | SH |
| 49 | ARRAY TECHNOLOGIES INC | ARRY | 04271TAD2 | $41.1M | 0.54% | 33,000,000 | PRN |
| 50 | MARA HOLDINGS INC | MARA | 565788AH9 | $40.7M | 0.53% | 42,000,000 | PRN |
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 2026-06-30 | 2026-08-14 | $7.65B | 667 | 0001257391-26-000006 |
| 2026-03-31 | 2026-05-15 | $8.12B | 568 | 0001257391-26-000004 |
| 2026-03-31 | 2026-08-26 | $119.8M | 5 | 0000905148-26-003956 |
| 2025-12-31 | 2026-02-17 | $7.05B | 492 | 0001257391-26-000002 |
| 2025-12-31 | 2026-08-26 | $142.0M | 3 | 0000905148-26-003955 |
| 2025-09-30 | 2025-11-14 | $6.46B | 427 | 0001257391-25-000009 |
SUITE 500
MINNEAPOLIS, MN 55416