Monashee Investment Management LLC reported 17 positions worth $41.44M for the quarter ended Jun 30, 2026, down 67.9% on the prior quarter. It opened 15 new positions, added to 0, trimmed 2 and exited 34. Its largest holding is Solid Biosciences Inc. at 12.1% 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 |
|---|---|---|---|---|
| DLR Digital Realty Trust, Inc. | +25.0K | – | $4.49M | 10.83% |
| SYRE Spyre Therapeutics, Inc. | +50.0K | – | $4.44M | 10.71% |
| TNGX Tango Therapeutics, Inc. | +100.0K | – | $3.13M | 7.54% |
| LEGN Legend Biotech Corp | +85.4K | – | $2.47M | 5.95% |
| GOOGL Alphabet Inc. | +6,000 | – | $2.14M | 5.17% |
| GOOG Alphabet Inc. | +6,000 | – | $2.12M | 5.12% |
| QURE uniQure N.V. | +45.0K | – | $2.07M | 5% |
| INIO Innio N.V. | +47.7K | – | $1.88M | 4.55% |
| AKR Acadia Realty Trust | +85.4K | – | $1.79M | 4.31% |
| PTRN Pattern Group Inc. | +64.0K | – | $1.61M | 3.89% |
| Holding | Change | Change % | Trade Value | Weight |
|---|---|---|---|---|
| MDLN Medline Inc. | -300.0K | -100.0% | $13.35M | Exited |
| NRG Nrg Energy, Inc. | -85.0K | -100.0% | $12.42M | Exited |
| FPS Forgent Power Solutions, Inc. | -350.0K | -100.0% | $10.24M | Exited |
| SLDB Solid Biosciences Inc. | -920.3K | -64.8% | $9.19M | 12.05% |
| NKTR Nektar Therapeutics | -100.0K | -100.0% | $7.20M | Exited |
| CYTK Cytokinetics Inc | -100.0K | -100.0% | $6.59M | Exited |
| BBIO BridgeBio Pharma, Inc. | -67.1K | -100.0% | $4.99M | Exited |
| EVMN Evommune, Inc. | -179.3K | -100.0% | $4.12M | Exited |
| ASTS AST SpaceMobile, Inc. | -45.0K | -100.0% | $3.73M | Exited |
| SNDK Sandisk Corp | -5,000 | -100.0% | $3.18M | Exited |
| Holding | Shares | Trade Value | Weight |
|---|---|---|---|
| DLR Digital Realty Trust, Inc. | +25.0K | $4.49M | 10.83% |
| SYRE Spyre Therapeutics, Inc. | +50.0K | $4.44M | 10.71% |
| TNGX Tango Therapeutics, Inc. | +100.0K | $3.13M | 7.54% |
| LEGN Legend Biotech Corp | +85.4K | $2.47M | 5.95% |
| GOOGL Alphabet Inc. | +6,000 | $2.14M | 5.17% |
| GOOG Alphabet Inc. | +6,000 | $2.12M | 5.12% |
| QURE uniQure N.V. | +45.0K | $2.07M | 5% |
| INIO Innio N.V. | +47.7K | $1.88M | 4.55% |
| AKR Acadia Realty Trust | +85.4K | $1.79M | 4.31% |
| PTRN Pattern Group Inc. | +64.0K | $1.61M | 3.89% |
| Holding | Shares Sold | Trade Value | Prior Weight |
|---|---|---|---|
| MDLN Medline Inc. | -300.0K | $13.35M | 10.35% |
| NRG Nrg Energy, Inc. | -85.0K | $12.42M | 9.63% |
| FPS Forgent Power Solutions, Inc. | -350.0K | $10.24M | 7.94% |
| NKTR Nektar Therapeutics | -100.0K | $7.20M | 5.58% |
| CYTK Cytokinetics Inc | -100.0K | $6.59M | 5.11% |
| BBIO BridgeBio Pharma, Inc. | -67.1K | $4.99M | 3.86% |
| EVMN Evommune, Inc. | -179.3K | $4.12M | 3.19% |
| ASTS AST SpaceMobile, Inc. | -45.0K | $3.73M | 2.89% |
| SNDK Sandisk Corp | -5,000 | $3.18M | 2.46% |
| MANE Veradermics, Inc | -50.0K | $3.16M | 2.45% |
| # | Activity | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | SLDB Solid Biosciences Inc. | Healthcare | 500.0K | $5.00M | 12.05% | -920.3K | -64.8% | Reduced | 0.35% |
| 2 | DLR Digital Realty Trust, Inc. | Real Estate | 25.0K | $4.49M | 10.83% | +25.0K | – | New | 0.01% |
| 3 | SYRE Spyre Therapeutics, Inc. | Healthcare | 50.0K | $4.44M | 10.71% | +50.0K | – | New | 0.06% |
| 4 | ADT ADT Inc. | Industrials | 600.0K | $3.90M | 9.41% | -100.0K | -14.3% | Reduced | 0.08% |
| 5 | TNGX Tango Therapeutics, Inc. | Healthcare | 100.0K | $3.13M | 7.54% | +100.0K | – | New | 0.06% |
| 6 | LEGN Legend Biotech Corp | Healthcare | 85.4K | $2.47M | 5.95% | +85.4K | – | New | 0.05% |
| 7 | GOOGL Alphabet Inc. | Technology | 6,000 | $2.14M | 5.17% | +6,000 | – | New | 0% |
| 8 | GOOG Alphabet Inc. | Technology | 6,000 | $2.12M | 5.12% | +6,000 | – | New | 0% |
| 9 | QURE uniQure N.V. | Healthcare | 45.0K | $2.07M | 5% | +45.0K | – | New | 0.06% |
| 10 | INIO Innio N.V. | Industrials | 47.7K | $1.88M | 4.55% | +47.7K | – | New | 0.01% |
| 11 | AKR Acadia Realty Trust | Real Estate | 85.4K | $1.79M | 4.31% | +85.4K | – | New | 0.06% |
| 12 | PTRN Pattern Group Inc. | Consumer Discretionary | 64.0K | $1.61M | 3.89% | +64.0K | – | New | 0.04% |
| 13 | MLTX MoonLake Immunotherapeutics | Healthcare | 75.0K | $1.46M | 3.52% | +75.0K | – | New | 0.1% |
| 14 | WHK WhiteHawk Minerals Corp. | Energy | 51.2K | $1.43M | 3.44% | +51.2K | – | New | 0.19% |
| 15 | TSHA Taysha Gene Therapies, Inc. | Healthcare | 200.0K | $1.36M | 3.29% | +200.0K | – | New | 0.05% |
Tip. Select a row to see that position’s full history at Monashee Investment Management.
As of its Q2 2026 13F filing, Monashee Investment Management LLC’s five largest positions were Solid Biosciences Inc. (SLDB) at 12.1%, Digital Realty Trust, Inc. (DLR) at 10.8%, Spyre Therapeutics, Inc. (SYRE) at 10.7%, ADT Inc. (ADT) at 9.4%, Tango Therapeutics, Inc. (TNGX) at 7.5% of the reported portfolio.
Monashee Investment Management LLC reported a 13F portfolio worth $41.44M across 17 positions for Q2 2026. That is down 67.9% from the previous quarter.
Its largest purchases by value were Digital Realty Trust, Inc. ($4.49M), Spyre Therapeutics, Inc. ($4.44M), Tango Therapeutics, Inc. ($3.13M). It opened 15 new positions.
Its largest sales by value were Medline Inc. ($13.35M), Nrg Energy, Inc. ($12.42M), Forgent Power Solutions, Inc. ($10.24M). It exited 34 positions entirely.
From the Form 13F-HR reports Monashee Investment Management 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.