Whitebox Advisors LLC reported 333 positions worth $1.36B for the quarter ended Jun 30, 2026, up 35.0% on the prior quarter. It opened 64 new positions, added to 20, trimmed 21 and exited 37. Its largest holding is Penumbra Inc at 11.7% of the portfolio.
Reported 13F market value at each quarter end. A change mixes trading with price moves in the positions held.
Dollar value of shares bought and sold each quarter, at that quarter’s price. It counts trading only, not price changes.
How many positions were opened, added to, trimmed or closed each quarter.
Share of reported value in each sector at every quarter end.
| Holding | Change | Change % | Trade Value | Weight |
|---|---|---|---|---|
| TECH BIO-TECHNE Corp | +2.10M | – | $148.37M | 10.88% |
| CZR Caesars Entertainment, Inc. | +3.27M | +2,886.3% | $98.58M | 7.48% |
| OPI Office Properties Income Trust | +1.75M | – | $29.73M | 2.18% |
| PEN Penumbra Inc | +61.9K | +13.9% | $19.54M | 11.73% |
| VAL Valaris Ltd | +266.8K | +45.7% | $19.37M | 4.53% |
| SVC Service Properties Trust | +5.81M | +154.0% | $9.82M | 1.19% |
| GPOR Gulfport Energy Corp | +55.0K | +25.0% | $9.33M | 3.42% |
| UP Wheels Up Experience Inc. | +1.02M | – | $9.16M | 0.672% |
| IACO Idea Acquisition Corp. | +797.4K | – | $7.90M | 0.579% |
| PONO Pono Capital Four, Inc. | +700.0K | – | $6.97M | 0.511% |
| Holding | Change | Change % | Trade Value | Weight |
|---|---|---|---|---|
| LITE Lumentum Holdings Inc. | -30.8K | -100.0% | $21.63M | Exited |
| PPLI People Inc | -217.4K | -100.0% | $8.70M | Exited |
| CSTM Constellium Se | -251.0K | -72.4% | $8.00M | 0.224% |
| IACOU Idea Acquisition Corp. | -797.4K | -100.0% | $7.90M | Exited |
| PONOU Pono Capital Four, Inc. | -700.0K | -100.0% | $6.99M | Exited |
| BLCO Bausch & Lomb Corp | -414.9K | -37.7% | $6.87M | 0.834% |
| AACIU Armada Acquisition Corp. III | -550.0K | -100.0% | $5.48M | Exited |
| SIMA SIM Acquisition Corp. I | -500.0K | -100.0% | $5.36M | Exited |
| HACQU HCM IV Acquisition Corp. | -450.0K | -100.0% | $4.51M | Exited |
| DMAA Drugs Made In America Acquisition Corp. | -400.0K | -100.0% | $4.19M | Exited |
| Holding | Shares | Trade Value | Weight |
|---|---|---|---|
| TECH BIO-TECHNE Corp | +2.10M | $148.37M | 10.88% |
| OPI Office Properties Income Trust | +1.75M | $29.73M | 2.18% |
| UP Wheels Up Experience Inc. | +1.02M | $9.16M | 0.672% |
| IACO Idea Acquisition Corp. | +797.4K | $7.90M | 0.579% |
| PONO Pono Capital Four, Inc. | +700.0K | $6.97M | 0.511% |
| VOYG Voyager Technologies, Inc. | +196.2K | $6.33M | 0.464% |
| RYAAY Ryanair Holdings Plc | +89.6K | $5.80M | 0.425% |
| AACI Armada Acquisition Corp. III | +550.0K | $5.49M | 0.403% |
| MYX Maywood Acquisition Corp. 2 | +550.0K | $5.43M | 0.398% |
| SAGU Shreya Acquisition Group | +475.0K | $4.70M | 0.344% |
| Holding | Shares Sold | Trade Value | Prior Weight |
|---|---|---|---|
| LITE Lumentum Holdings Inc. | -30.8K | $21.63M | 2.14% |
| PPLI People Inc | -217.4K | $8.70M | 0.861% |
| IACOU Idea Acquisition Corp. | -797.4K | $7.90M | 0.782% |
| PONOU Pono Capital Four, Inc. | -700.0K | $6.99M | 0.691% |
| AACIU Armada Acquisition Corp. III | -550.0K | $5.48M | 0.542% |
| SIMA SIM Acquisition Corp. I | -500.0K | $5.36M | 0.53% |
| HACQU HCM IV Acquisition Corp. | -450.0K | $4.51M | 0.447% |
| DMAA Drugs Made In America Acquisition Corp. | -400.0K | $4.19M | 0.415% |
| CMIIU Inflection Point Acquisition Corp VII | -400.0K | $4.00M | 0.395% |
| CAQUU Cambridge Acquisition Corp. | -400.0K | $3.98M | 0.394% |
| # | Activity | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | PEN Penumbra Inc | Healthcare | 506.9K | $160.05M | 11.73% | +61.9K | +13.9% | Added | 1.29% |
| 2 | TECH BIO-TECHNE Corp | Healthcare | 2.10M | $148.37M | 10.88% | +2.10M | – | New | 1.35% |
| 3 | CZR Caesars Entertainment, Inc. | Consumer Discretionary | 3.38M | $101.99M | 7.48% | +3.27M | +2,886.3% | Added | 1.66% |
| 4 | VAL Valaris Ltd | Energy | 850.7K | $61.76M | 4.53% | +266.8K | +45.7% | Added | 1.23% |
| 5 | GPOR Gulfport Energy Corp | Energy | 274.6K | $46.60M | 3.42% | +55.0K | +25.0% | Added | 1.53% |
| 6 | TFPM Triple Flag Precious Metals Corp. | Financial Services | 1.52M | $45.51M | 3.34% | 0 | 0.0% | Unchanged | 0.75% |
| 7 | HEI-A Heico Corp | Industrials | 132.1K | $34.07M | 2.5% | +7,367 | +5.9% | Added | 0.16% |
| 8 | OPI Office Properties Income Trust | Real Estate | 1.75M | $29.73M | 2.18% | +1.75M | – | New | 7.96% |
| 9 | LLYVK Liberty Live Holdings, Inc. | Communication Services | 218.0K | $23.03M | 1.69% | +56.6K | +35.0% | Added | 0.34% |
| 10 | SVC Service Properties Trust | Real Estate | 9.58M | $16.19M | 1.19% | +5.81M | +154.0% | Added | 5.7% |
| 11 | CHRD Chord Energy Corp | Energy | 124.5K | $14.23M | 1.04% | -35.0K | -21.9% | Reduced | 0.22% |
| 12 | SM SM Energy Co | Energy | 496.6K | $12.96M | 0.95% | -105.7K | -17.5% | Reduced | 0.21% |
| 13 | CYH Community Health Systems Inc | Healthcare | 3.73M | $12.47M | 0.914% | +604.9K | +19.3% | Added | 2.65% |
| 14 | DCH Dauch Corp | Consumer Discretionary | 2.16M | $11.70M | 0.858% | -134.4K | -5.9% | Reduced | 0.88% |
| 15 | BLCO Bausch & Lomb Corp | Healthcare | 687.0K | $11.38M | 0.834% | -414.9K | -37.7% | Reduced | 0.19% |
Tip. Select a row to see that position’s full history at Whitebox Advisors.
As of its Q2 2026 13F filing, Whitebox Advisors LLC’s five largest positions were Penumbra Inc (PEN) at 11.7%, BIO-TECHNE Corp (TECH) at 10.9%, Caesars Entertainment, Inc. (CZR) at 7.5%, Valaris Ltd (VAL) at 4.5%, Gulfport Energy Corp (GPOR) at 3.4% of the reported portfolio.
Whitebox Advisors LLC reported a 13F portfolio worth $1.36B across 333 positions for Q2 2026. That is up 35.0% from the previous quarter.
Its largest purchases by value were BIO-TECHNE Corp ($148.37M), Caesars Entertainment, Inc. ($98.58M), Office Properties Income Trust ($29.73M). It opened 64 new positions.
Its largest sales by value were Lumentum Holdings Inc. ($21.63M), People Inc ($8.70M), Constellium Se ($8.00M). It exited 37 positions entirely.
From the Form 13F-HR reports Whitebox Advisors LLC files with the SEC each quarter, within 45 days of quarter end. A 13F lists long positions in US-listed equities and options; it excludes short positions, cash, bonds and most non-US holdings.
13F data reflects long positions in US-listed equities and options as reported to the SEC up to 45 days after quarter end. It excludes short positions, cash, bonds and most non-US securities, so it is not a complete picture of a manager’s assets.