CIK: 0001627608
Total reported value
$183.8M
Reporting period: 2026-03-31 · Number of holdings: 45
Monashee Investment Management LLC disclosed 45 holdings in its latest 13F filing for the period ending 2026-03-31, with total reported value of $183.8M and a quarterly turnover rate of 132.0%.
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Monashee Investment Management LLC's disclosed holdings carry a Herfindahl concentration index of 0.042 — mathematically equivalent to about 24 equally-sized positions, well below its 45 actual disclosed holdings. That gap points to a strategy built around a small core of high-conviction bets rather than broad diversification.
Position sizes are fairly uniform across the portfolio (a coefficient of variation of 0.96), suggesting a disciplined, rules-based approach to how much capital goes into each idea.
No strong tilt toward either adding to existing winners or initiating outsized new positions was observed in the latest reported quarter.
Sector classification currently covers about 41% of this portfolio's disclosed value; the remainder includes holdings (e.g. unmapped tickers, options, or other security types) not yet covered by our sector mapping.
Trim GPCR
-77.8% -$13.2M
Add 430
+52.0% $7.8M
Trim KYMR
-64.9% -$4.9M
Trim CMPX
-74.1% -$4.0M
Add NKTR
+6.2% $3.2M
Trim BBIO
-32.9% -$2.7M
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | 430 | Terns Pharmaceuticals INC | Stock-Other | 8.60% | +4.11% | +52.04% | |
| 2 | NEE 7.375 02-15-29 | Nextera Energy INC | Stock-Utilities | 8.28% | +8.28% | NEW | |
| 3 | MDLN | Medline Inc-cl A | Stock-Other | 7.26% | — | — | |
| 4 | NRG | Nrg Energy INC | Stock-Utilities | 6.76% | +6.76% | NEW | |
| 5 | FPS | Forgent Power Solutions INC | Stock-Other | 5.57% | +5.57% | NEW | |
| 6 | SLDB | Solid Biosciences INC | Stock-Other | 5.56% | +1.27% | +5.22% | |
| 7 | NKTR | Nektar Therapeutics | Stock-Other | 3.91% | +1.67% | +6.23% | |
| 8 | CYTK | Cytokinetics INC | Stock-Healthcare | 3.59% | +0.90% | +33.33% | |
| 9 | JOBY 0.75 02-15-32 | Joby Aviation INC | Stock-Industrials | 3.19% | +3.19% | NEW | |
| 10 | PPL 7 02-15-29 | Ppl Corporation | Stock-Utilities | 2.85% | +2.85% | NEW | |
| 11 | BBIO | Bridgebio Pharma INC | Stock-Healthcare | 2.71% | -1.60% | -32.86% | |
| 12 | ADT | Adt INC | Stock-Industrials | 2.50% | — | +75.00% | |
| 13 | ORCL 6.5 01-15-29 D | Oracle CORP | Stock-Tech | 2.45% | +2.45% | NEW | |
| 14 | EVMN | Evommune INC | Stock-Other | 2.24% | — | -2.13% | |
| 15 | KKR 6.25 03-01-28 D | Kkr & Co INC | Stock-Financials | 2.19% | +2.19% | NEW | |
| 16 | ASTS | Ast Spacemobile INC | Stock-Tech | 2.03% | +2.03% | NEW | |
| 17 | ZBIO 2.5 04-01-32 | Zenas Biopharma INC | Stock-Other | 1.75% | +1.75% | NEW | |
| 18 | SNDK | Sandisk CORP | Stock-Tech | 1.73% | +1.73% | NEW | |
| 19 | MANE | Veradermics INC | Stock-Other | 1.72% | +1.72% | NEW | |
| 20 | ZBIO | Zenas Biopharma INC | Stock-Other | 1.60% | +1.60% | NEW | |
| 21 | KYMR | Kymera Therapeutics INC | Stock-Other | 1.59% | -2.79% | -64.90% | |
| 22 | AMBQ | Ambiq Micro INC | Stock-Other | 1.43% | — | +21.94% | |
| 23 | MMED | Minimed Group INC | Stock-Other | 1.42% | +1.42% | NEW | |
| 24 | FIGR | Figure Technology Solut-cl A | Stock-Other | 1.41% | +1.41% | NEW | |
| 25 | SGP | Spyglass Pharma INC | Stock-Other | 1.34% | +1.34% | NEW | |
| 26 | GPCR | Structure Therapeutics INC | Stock-Other | 1.31% | -7.51% | -77.78% | |
| 27 | CRSP | CRISPR Therapeutics AG | Stock-Healthcare | 1.29% | +1.29% | NEW | |
| 28 | INGM | Ingram Micro Holding CORP | Stock-Other | 1.27% | +1.27% | NEW | |
| 29 | GFS | GLOBALFOUNDRIES Inc. | Stock-Tech | 1.21% | +1.21% | NEW | |
| 30 | ✓ | Engene Holdings INC | Stock-Other | 1.19% | — | +8.47% | |
| 31 | FLOC | Flowco Holdings Inc-cl A | Stock-Other | 1.12% | +1.12% | NEW | |
| 32 | SABS | Sab Biotherapeutics INC | Stock-Other | 1.04% | +1.04% | NEW | |
| 33 | ACRS | Aclaris Therapeutics INC | Stock-Other | 1.02% | +1.02% | NEW | |
| 34 | HNRG | Hallador Energy Co | Stock-Other | 0.80% | +0.80% | NEW | |
| 35 | NVGS | Navigator Holdings Ltd. | Stock-Other | 0.79% | +0.79% | NEW | |
| 36 | ✓ | Helix Acquisition CORP Iii | Stock-Other | 0.76% | — | — | |
| 37 | CMPX | Compass Therapeutics INC | Stock-Other | 0.74% | -2.29% | -74.11% | |
| 38 | BTGO | Bitgo Holdings Inc-cl A | Stock-Other | 0.67% | — | — | |
| 39 | COHR | Coherent CORP | Stock-Tech | 0.65% | — | — | |
| 40 | JAN | Janus Living INC Cl-a-1 | Stock-Other | 0.64% | — | — | |
| 41 | ✓ | Whitefiber INC Shs | Stock-Other | 0.52% | — | -42.86% | |
| 42 | VIR | Vir Biotechnology INC | Stock-Other | 0.49% | — | — | |
| 43 | GOSS 5 06-01-27 | Gossamer Bio INC | Stock-Other | 0.46% | — | +15.63% | |
| 44 | NRGV | Energy Vault Holdings INC | Stock-Other | 0.32% | — | — | |
| 45 | MSLE | Satellos Bioscience INC | Stock-Other | 0.04% | — | — |
Performance for Q3 2026
+3.4%
Performance Last 4 Quarters
+13.9%
Based on 42% of reported portfolio value with available pricing
| Period | Holdings | Total value | Stability | Top holdings |
|---|---|---|---|---|
| 2026-03-31 | 45 | $183.8M | 100 | |
| 2025-12-31 | 40 | $177.5M | 100 | |
| 2025-09-30 | 61 | $200.5M | 100 | |
| 2025-06-30 | 57 | $275.9M | 0 | |
| 2025-03-31 | 46 | $845.1M | 100 | |
| 2024-12-31 | 38 | $729.2M | 0 | |
| 2024-09-30 | 110 | $923.5M | 0 | |
| 2024-06-30 | 75 | $773.4M | 0 | |
| 2024-03-31 | 105 | $845.3M | 0 | |
| 2023-12-31 | 44 | $566.5M | 0 | |
| 2023-09-30 | 75 | $239.4M | 0 | |
| 2023-06-30 | 68 | $418.9M | 0 | |
| 2023-03-31 | 55 | $362.2M | 0 | |
| 2022-12-31 | 41 | $232.3M | 0 | |
| 2022-09-30 | 52 | $269.6M | 0 | |
| 2022-06-30 | 28 | $274.7M | 0 | |
| 2022-03-31 | 38 | $345.3M | 0 | |
| 2021-12-31 | 44 | $404.6M | 0 | |
| 2021-09-30 | 262 | $541.5M | 0 | |
| 2021-06-30 | 427 | $836.0M | 100 | |
| 2021-03-31 | 374 | $650.2M | 100 | |
| 2020-12-31 | 280 | $757.4M | 100 | |
| 2020-09-30 | 173 | $464.4M | 100 | |
| 2020-06-30 | 198 | $668.9M | 100 | |
| 2020-03-31 | 61 | $186.6M | 100 | |
| 2019-12-31 | 81 | $107.4M | 100 | |
| 2019-09-30 | 112 | $219.4M | 100 | |
| 2019-06-30 | 159 | $386.2M | 100 | |
| 2019-03-31 | 127 | $434.7M | 100 | |
| 2018-12-31 | 85 | $147.7M | 100 | 1G6375R231811A3G3165V |
| 2018-09-30 | 150 | $472.2K | 100 | |
| 2018-06-30 | 153 | $525.3K | 100 | |
| 2018-03-31 | 143 | $362.2M | 100 | |
| 2017-12-31 | 134 | $235.9K | 100 | |
| 2017-09-30 | 81 | $264.3K | 100 | |
| 2017-06-30 | 84 | $236.6M | 100 | |
| 2017-03-31 | 82 | $249.0K | 100 | |
| 2016-12-31 | 84 | $205.4M | 100 | |
| 2016-09-30 | 86 | $284.3K | 100 | |
| 2016-06-30 | 57 | $63.5K | 100 | |
| 2016-03-31 | 38 | $54.7K | 100 | |
| 2015-12-31 | 25 | $50.2M | 100 | |
| 2015-09-30 | 10 | $14.5M | 100 | |
| 2015-06-30 | 68 | $212.0K | 100 | |
| 2015-03-31 | 67 | $160.6M | — |
Monashee Investment Management LLC's most significant position changes for 2026-03-31: New buy: Nextera Energy INC (NEE 7.375 02-15-29); New buy: Nrg Energy INC (NRG); Sold out: Sofi Technologies INC (SOFI); Sold out: Ul Solutions INC - Class A (ULS); New buy: Forgent Power Solutions INC (FPS).
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | 430 | Terns Pharmaceuticals INC | +4.1% | +52.04% | Add |
| 2 | NKTR | Nektar Therapeutics | +1.7% | +6.23% | Add |
| 3 | SLDB | Solid Biosciences INC | +1.3% | +5.22% | Add |
| 4 | CYTK | Cytokinetics INC | +0.9% | +33.33% | Add |
| 5 | BBIO | Bridgebio Pharma INC | -1.6% | -32.86% | Trim |
| 6 | CMPX | Compass Therapeutics INC | -2.3% | -74.11% | Trim |
| 7 | KYMR | Kymera Therapeutics INC | -2.8% | -64.90% | Trim |
| 8 | GPCR | Structure Therapeutics INC | -7.5% | -77.78% | Trim |
| 9 | NEE 7.375 02-15-29 | Nextera Energy INC | — | NEW | New buy |
| 10 | NRG | Nrg Energy INC | — | NEW | New buy |
| 11 | SOFI | Sofi Technologies INC | — | EXIT | Sold out |
| 12 | ULS | Ul Solutions INC - Class A | — | EXIT | Sold out |
| 13 | FPS | Forgent Power Solutions INC | — | NEW | New buy |
| 14 | INSM | Insmed INC | — | EXIT | Sold out |
| 15 | MIAX | Miami International Holdings | — | EXIT | Sold out |
| 16 | LGN | Legence Corp-cl A | — | EXIT | Sold out |
| 17 | IMNM | Immunome INC | — | EXIT | Sold out |
| 18 | JOBY 0.75 02-15-32 | Joby Aviation INC | — | NEW | New buy |
| 19 | ITT | Itt INC | — | EXIT | Sold out |
| 20 | PPL 7 02-15-29 | Ppl Corporation | — | NEW | New buy |
| 21 | ORCL 6.5 01-15-29 D | Oracle CORP | — | NEW | New buy |
| 22 | WLTH | Wealthfront CORP | — | EXIT | Sold out |
| 23 | KKR 6.25 03-01-28 D | Kkr & Co INC | — | NEW | New buy |
| 24 | SO 7.125 12-15-28 A | Southern Co | — | EXIT | Sold out |
| 25 | ASTS | Ast Spacemobile INC | — | NEW | New buy |
| 26 | ZBIO 2.5 04-01-32 | Zenas Biopharma INC | — | NEW | New buy |
| 27 | SNDK | Sandisk CORP | — | NEW | New buy |
| 28 | MANE | Veradermics INC | — | NEW | New buy |
| 29 | GOSS | Gossamer Bio INC | — | EXIT | Sold out |
| 30 | NOVT 6.5 11-01-28 | Novanta INC | — | EXIT | Sold out |
| 31 | ZBIO | Zenas Biopharma INC | — | NEW | New buy |
| 32 | LMRI | Lumexa Imaging Holdings INC | — | EXIT | Sold out |
| 33 | MMED | Minimed Group INC | — | NEW | New buy |
| 34 | FIGR | Figure Technology Solut-cl A | — | NEW | New buy |
| 35 | SGP | Spyglass Pharma INC | — | NEW | New buy |
| 36 | CRSP | CRISPR Therapeutics AG | — | NEW | New buy |
| 37 | INGM | Ingram Micro Holding CORP | — | NEW | New buy |
| 38 | DYN | Dyne Therapeutics INC | — | EXIT | Sold out |
| 39 | GFS | GLOBALFOUNDRIES Inc. | — | NEW | New buy |
| 40 | FLOC | Flowco Holdings Inc-cl A | — | NEW | New buy |
| 41 | AERO | Grupo Aeromexico Sab De Cv | — | EXIT | Sold out |
| 42 | ✓ | — | EXIT | Sold out | |
| 43 | SABS | Sab Biotherapeutics INC | — | NEW | New buy |
| 44 | ACRS | Aclaris Therapeutics INC | — | NEW | New buy |
| 45 | KYTX | Kyverna Therapeutics INC | — | EXIT | Sold out |
| 46 | ✓ | Immatics NV | — | EXIT | Sold out |
| 47 | CTNM | Contineum Therapeutics Inc-a | — | EXIT | Sold out |
| 48 | DNLI | Denali Therapeutics INC | — | EXIT | Sold out |
| 49 | HNRG | Hallador Energy Co | — | NEW | New buy |
| 50 | NVGS | Navigator Holdings Ltd. | — | NEW | New buy |
| Period | Filed | Type | EDGAR |
|---|---|---|---|
| 2026-03-31 | 2026-05-13 | 13F-HR | View on EDGAR |
| 2025-12-31 | 2026-02-12 | 13F-HR | View on EDGAR |
| 2025-09-30 | 2025-11-12 | 13F-HR | View on EDGAR |
| 2025-06-30 | 2025-08-11 | 13F-HR | View on EDGAR |
| 2025-03-31 | 2025-05-14 | 13F-HR | View on EDGAR |
| 2024-12-31 | 2025-02-14 | 13F-HR | View on EDGAR |
| 2024-09-30 | 2024-11-12 | 13F-HR | View on EDGAR |
| 2024-06-30 | 2024-08-12 | 13F-HR | View on EDGAR |
| 2024-03-31 | 2024-05-14 | 13F-HR | View on EDGAR |
| 2023-12-31 | 2024-02-12 | 13F-HR | View on EDGAR |
| 2023-09-30 | 2023-11-13 | 13F-HR | View on EDGAR |
| 2023-06-30 | 2023-08-10 | 13F-HR | View on EDGAR |
| 2023-03-31 | 2023-05-05 | 13F-HR | View on EDGAR |
| 2022-12-31 | 2023-02-09 | 13F-HR | View on EDGAR |
| 2022-09-30 | 2022-11-01 | 13F-HR | View on EDGAR |
| 2022-06-30 | 2022-08-12 | 13F-HR | View on EDGAR |
| 2022-03-31 | 2022-05-12 | 13F-HR | View on EDGAR |
| 2021-12-31 | 2022-02-07 | 13F-HR | View on EDGAR |
| 2021-09-30 | 2021-11-09 | 13F-HR | View on EDGAR |
| 2021-06-30 | 2021-08-12 | 13F-HR | View on EDGAR |
| 2021-03-31 | 2021-05-14 | 13F-HR | View on EDGAR |
| 2020-12-31 | 2021-02-11 | 13F-HR | View on EDGAR |
| 2020-09-30 | 2020-11-13 | 13F-HR | View on EDGAR |
| 2020-06-30 | 2020-08-11 | 13F-HR | View on EDGAR |
| 2020-03-31 | 2020-05-13 | 13F-HR | View on EDGAR |
| 2019-12-31 | 2020-02-12 | 13F-HR | View on EDGAR |
| 2019-09-30 | 2019-11-12 | 13F-HR | View on EDGAR |
| 2019-06-30 | 2019-08-07 | 13F-HR | View on EDGAR |
| 2019-03-31 | 2019-05-13 | 13F-HR | View on EDGAR |
| 2018-12-31 | 2019-02-12 | 13F-HR | View on EDGAR |
| 2018-09-30 | 2018-11-13 | 13F-HR | View on EDGAR |
| 2018-06-30 | 2018-08-14 | Amendment | View on EDGAR |
| 2018-06-30 | 2018-08-10 | 13F-HR | View on EDGAR |
| 2018-03-31 | 2018-05-10 | 13F-HR | View on EDGAR |
| 2017-12-31 | 2018-02-09 | 13F-HR | View on EDGAR |
| 2017-09-30 | 2017-11-13 | 13F-HR | View on EDGAR |
| 2017-06-30 | 2017-08-11 | 13F-HR | View on EDGAR |
| 2017-03-31 | 2017-05-12 | 13F-HR | View on EDGAR |
| 2016-12-31 | 2017-02-09 | 13F-HR | View on EDGAR |
| 2016-09-30 | 2016-11-07 | 13F-HR | View on EDGAR |
| 2016-06-30 | 2016-08-02 | 13F-HR | View on EDGAR |
| 2016-03-31 | 2016-05-13 | 13F-HR | View on EDGAR |
| 2015-12-31 | 2016-02-09 | 13F-HR | View on EDGAR |
| 2015-09-30 | 2016-02-09 | Amendment | View on EDGAR |
| 2015-09-30 | 2015-12-02 | Amendment | View on EDGAR |
| 2015-09-30 | 2015-10-16 | 13F-HR | View on EDGAR |
| 2015-06-30 | 2015-08-13 | 13F-HR | View on EDGAR |
| 2015-03-31 | 2015-04-20 | 13F-HR | View on EDGAR |
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