Monashee Investment Management LLC
In its 13F for Q1 2026 (holdings as of March 31, 2026, filed May 13, 2026), Monashee Investment Management LLC reported 41 stock positions worth $154.8 million. Its top holding was Terns Pharmaceuticals (TERN) at 10.2% of the portfolio, followed by Medline Class A (MDLN, 8.6%) and NRG Energy (NRG, 8.0%). Compared with Q4 2025, it opened 27 new positions, sold out of 23, added to 7 and reduced 6. The biggest buy was a new position in NRG Energy (NRG) and the biggest sale Structure Therapeutics (GPCR, shares −78%).
- Most Recent 13F
- Q2 2026
- Location
- Boston, MA
- CIK
- 0001627608
- Portfolio Value
- $154.8M (Q1 2026)
- SEC Filing
- 0001172661-26-001803 ↗ filed May 13, 2026
Holdings Value
Holdings 41 stocks · $154.8M
| TERN Terns Pharmaceuticals Inc. | 10.21% | 300,000 | $15.8M | Add +52.0% |
| MDLN Medline Inc. Class A | 8.62% | 300,000 | $13.3M | No change |
| NRG NRG Energy Inc. | 8.02% | 85,000 | $12.4M | New |
| FPS Forgent Power Solutions Class A | 6.62% | 350,000 | $10.2M | New |
| SLDB Solid Biosciences Inc. | 6.60% | 1,420,295 | $10.2M | Add +5.2% |
| NKTR Nektar Therapeutics | 4.65% | 100,000 | $7.2M | Add +6.2% |
| CYTK Cytokinetics Inc. | 4.26% | 100,000 | $6.6M | Add +33.3% |
| JOBY AVIATION INC (JOBY 0.75 02/15/32) | 3.78% | 7,000,000 | $5.9M | New |
| BBIO Bridgebio Pharma Inc. | 3.22% | 67,139 | $5.0M | Reduce -32.9% |
| ADT Adt Inc. | 2.97% | 700,000 | $4.6M | Add +75.0% |
| EVMN Evommune Inc. | 2.66% | 179,340 | $4.1M | Reduce -2.1% |
| ASTS Ast Spacemobile Inc. | 2.41% | 45,000 | $3.7M | New |
| ZENAS BIOPHARMA INC (ZBIO 2.5 04/01/32) | 2.07% | 3,152,000 | $3.2M | New |
| SNDK Sandisk Corp. | 2.05% | 5,000 | $3.2M | New |
| MANE Veradermics Inc. | 2.04% | 50,000 | $3.2M | New |
| ZBIO Zenas Biopharma Inc. | 1.89% | 150,000 | $2.9M | New |
| KYMR Kymera Therapeutics Inc. | 1.89% | 35,100 | $2.9M | Reduce -64.9% |
| AMBQ Ambiq Micro Inc. | 1.70% | 103,756 | $2.6M | Add +21.9% |
| MMED Minimed Group Inc. | 1.69% | 175,000 | $2.6M | New |
| FIGR Figure Technology Solut Class A | 1.68% | 76,520 | $2.6M | New |
| SGP Spyglass Pharma Inc. | 1.59% | 95,000 | $2.5M | New |
| GPCR Structure Therapeutics Inc. | 1.56% | 50,000 | $2.4M | Reduce -77.8% |
| CRSP Crispr Therapeutics AG | 1.54% | 50,000 | $2.4M | New |
| INGM Ingram Micro Holding Corp. | 1.51% | 100,000 | $2.3M | New |
| GFS Globalfoundries Inc. | 1.44% | 50,000 | $2.2M | New |
| ENGN Engene Holdings Inc. | 1.41% | 320,000 | $2.2M | Add +8.5% |
| FLOC Flowco Holdings Inc. Class A | 1.33% | 100,000 | $2.1M | New |
| SABS Sab Biotherapeutics Inc. | 1.24% | 500,000 | $1.9M | New |
| ACRS Aclaris Therapeutics Inc. | 1.21% | 500,000 | $1.9M | New |
| HNRG Hallador Energy Co. | 0.95% | 90,000 | $1.5M | New |
| NVGS Navigator Holdings Ltd. | 0.94% | 75,000 | $1.4M | New |
| HLXC Helix Acquisition Corp. Class A | 0.90% | 137,113 | $1.4M | New |
| CMPX Compass Therapeutics Inc. | 0.88% | 258,865 | $1.4M | Reduce -74.1% |
| BTGO Bitgo Holdings Inc. Class A | 0.80% | 150,000 | $1.2M | New |
| COHR Coherent Corp. | 0.77% | 5,000 | $1.2M | New |
| JAN Janus Living Inc. Class-A-1 | 0.76% | 50,000 | $1.2M | New |
| WYFI Whitefiber Inc. | 0.62% | 80,000 | $953K | Reduce -42.9% |
| VIR Vir Biotechnology Inc. | 0.58% | 100,000 | $896K | New |
| GOSSAMER BIO INC (GOSS 5 06/01/27) | 0.55% | 2,167,000 | $845K | New |
| NRGV Energy Vault Holdings Inc. | 0.38% | 176,453 | $582K | New |
| MSLE Satellos Bioscience Inc. | 0.04% | 12,000 | $68K | New |
Other holdings (4): bonds, preferreds, convertibles and warrants · $29.0M (not counted above)
| Security | Class | Shares / Principal | Value | Change |
|---|---|---|---|---|
| NEXTERA ENERGY INC (NEE 7.375 02/15/29) | UNIT 02/15/2029 | 299,970 | $15.2M | New |
| PPL CORPORATION (PPL 7 02/15/29) | UNIT 02/15/2029 | 101,300 | $5.2M | New |
| ORACLE CORP (ORCL 6.5 01/15/29 D) | 6.5 DEP CUM SR D | 100,000 | $4.5M | New |
| KKR & CO INC (KKR 6.25 03/01/28 D) | 6.25 CON SER D | 100,000 | $4.0M | New |
Total filed on the 13F, all lines: $183.8M.
Portfolio Sells Q4 2025 → Q1 2026
| GPCR Structure Therapeutics Inc. | Reduce -77.8% | 1.56% | −7.69 |
| SOFI Sofi Technologies Inc. | Sold out | 0.00% | −6.19 |
| ULS Ul Solutions Inc. Class A | Sold out | 0.00% | −6.06 |
| INSM Insmed Inc. | Sold out | 0.00% | −5.14 |
| MIAX Miami International Holdings | Sold out | 0.00% | −4.59 |
| LGN Legence Corp. Class A | Sold out | 0.00% | −3.51 |
| IMNM Immunome Inc. | Sold out | 0.00% | −3.49 |
| ITT Itt Inc. | Sold out | 0.00% | −3.29 |
| KYMR Kymera Therapeutics Inc. | Reduce -64.9% | 1.89% | −2.71 |
| WLTH Wealthfront Corp. | Sold out | 0.00% | −2.41 |
| CMPX Compass Therapeutics Inc. | Reduce -74.1% | 0.88% | −2.29 |
| GOSS Gossamer Bio Inc. | Sold out | 0.00% | −1.83 |
| LMRI Lumexa Imaging Holdings Inc. | Sold out | 0.00% | −1.64 |
| DYN Dyne Therapeutics Inc. | Sold out | 0.00% | −1.32 |
| BBIO Bridgebio Pharma Inc. | Reduce -32.9% | 3.22% | −1.30 |
| AERO Grupo Aeromexico Sab DE CV | Sold out | 0.00% | −1.19 |
| EVAC.U Eqv Ventures Acquisition Cor | Sold out | 0.00% | −1.18 |
| KYTX Kyverna Therapeutics Inc. | Sold out | 0.00% | −1.08 |
| IMTX Immatics NV | Sold out | 0.00% | −0.99 |
| CTNM Contineum Therapeutics Inc. Class A | Sold out | 0.00% | −0.93 |
| DNLI Denali Therapeutics Inc. | Sold out | 0.00% | −0.89 |
| WYFI Whitefiber Inc. | Reduce -42.9% | 0.62% | −0.69 |
| VERA Vera Therapeutics Inc. | Sold out | 0.00% | −0.69 |
| LPTH Lightpath Technologies Inc. Class A | Sold out | 0.00% | −0.64 |
| BDSX Biodesix Inc. | Sold out | 0.00% | −0.45 |
| TARA Protara Therapeutic Inc. | Sold out | 0.00% | −0.39 |
| IMA Imagenebio Inc. | Sold out | 0.00% | −0.37 |
| IBIO Ibio Inc. | Sold out | 0.00% | −0.31 |
| EVMN Evommune Inc. | Reduce -2.1% | 2.66% | +0.81 |
Portfolio Buys Q4 2025 → Q1 2026
| NRG NRG Energy Inc. | New | 8.02% | +8.02 |
| FPS Forgent Power Solutions Class A | New | 6.62% | +6.62 |
| TERN Terns Pharmaceuticals Inc. | Add +52.0% | 10.21% | +5.51 |
| JOBY AVIATION INC (JOBY 0.75 02/15/32) | New | 3.78% | +3.78 |
| ASTS Ast Spacemobile Inc. | New | 2.41% | +2.41 |
| NKTR Nektar Therapeutics | Add +6.2% | 4.65% | +2.30 |
| SLDB Solid Biosciences Inc. | Add +5.2% | 6.60% | +2.11 |
| ZENAS BIOPHARMA INC (ZBIO 2.5 04/01/32) | New | 2.07% | +2.07 |
| SNDK Sandisk Corp. | New | 2.05% | +2.05 |
| MANE Veradermics Inc. | New | 2.04% | +2.04 |
| ZBIO Zenas Biopharma Inc. | New | 1.89% | +1.89 |
| MMED Minimed Group Inc. | New | 1.69% | +1.69 |
| FIGR Figure Technology Solut Class A | New | 1.68% | +1.68 |
| SGP Spyglass Pharma Inc. | New | 1.59% | +1.59 |
| CRSP Crispr Therapeutics AG | New | 1.54% | +1.54 |
| INGM Ingram Micro Holding Corp. | New | 1.51% | +1.51 |
| CYTK Cytokinetics Inc. | Add +33.3% | 4.26% | +1.44 |
| GFS Globalfoundries Inc. | New | 1.44% | +1.44 |
| FLOC Flowco Holdings Inc. Class A | New | 1.33% | +1.33 |
| SABS Sab Biotherapeutics Inc. | New | 1.24% | +1.24 |
| ACRS Aclaris Therapeutics Inc. | New | 1.21% | +1.21 |
| ADT Adt Inc. | Add +75.0% | 2.97% | +1.06 |
| HNRG Hallador Energy Co. | New | 0.95% | +0.95 |
| NVGS Navigator Holdings Ltd. | New | 0.94% | +0.94 |
| HLXC Helix Acquisition Corp. Class A | New | 0.90% | +0.90 |
| BTGO Bitgo Holdings Inc. Class A | New | 0.80% | +0.80 |
| COHR Coherent Corp. | New | 0.77% | +0.77 |
| JAN Janus Living Inc. Class-A-1 | New | 0.76% | +0.76 |
| VIR Vir Biotechnology Inc. | New | 0.58% | +0.58 |
| GOSSAMER BIO INC (GOSS 5 06/01/27) | New | 0.55% | +0.55 |
| NRGV Energy Vault Holdings Inc. | New | 0.38% | +0.38 |
| AMBQ Ambiq Micro Inc. | Add +21.9% | 1.70% | +0.27 |
| MSLE Satellos Bioscience Inc. | New | 0.04% | +0.04 |
| ENGN Engene Holdings Inc. | Add +8.5% | 1.41% | −0.17 |
Notes & Other Activity Q4 2025 → Q1 2026
| NEXTERA ENERGY INC (NEE 7.375 02/15/29) | UNIT 02/15/2029 | New | 299,970 | $15.2M |
| PPL CORPORATION (PPL 7 02/15/29) | UNIT 02/15/2029 | New | 101,300 | $5.2M |
| ORACLE CORP (ORCL 6.5 01/15/29 D) | 6.5 DEP CUM SR D | New | 100,000 | $4.5M |
| KKR & CO INC (KKR 6.25 03/01/28 D) | 6.25 CON SER D | New | 100,000 | $4.0M |
| SOUTHERN CO (SO 7.125 12/15/28 A) | UNIT 12/15/2028 | Sold out | 75,877 | $3.8Mbefore exit |
| NOVANTA INC (NOVT 6.5 11/01/28) | UNIT 11/01/2028 | Sold out | 55,962 | $3.1Mbefore exit |
| GOSSAMER BIO INC (GOSS 5 06/01/27) | NOTE 5.000% 6/0 · principal | Sold out | 1,874,000 | $1.3Mbefore exit |
Bonds, preferreds, convertibles and warrants; not part of the stock holdings or percentages above.
All Filings
| Quarter | Positions | 13F Reported Value | Top Holdings |
|---|---|---|---|
| Q2 2026 | 17 | $41.4M | SLDB, DLR, SYRE, ADT, TNGX |
| Q1 2026 | 41 | $154.8M | TERN, MDLN, NRG, FPS, SLDB |
| Q4 2025 | 37 | $169.3M | GPCR, MDLN, SOFI, ULS, INSM |
| Q3 2025 | 58 | $194.0M | BBIO, FWDI, WYFI, FIGR, NTSK |
| Q2 2025 | 36 | $181.8M | LLY, CORZ, KTOS, BBIO, SLDB |
| Q1 2025 | 41 | $826.9M | IVV, VOO, VEA, IEFA, VWO |
| Q4 2024 | 34 | $719.5M | IVV, VOO, VEA, IEFA, VWO |
| Q3 2024 | 103 | $903.5M | IVV, VOO, VEA, IEFA, VWO |
| Q2 2024 | 72 | $766.6M | IVV, VOO, VEA, IEFA, VWO |
| Q1 2024 | 99 | $835.9M | IVV, VOO, VEA, IEFA, VWO |