Monashee Investment Management LLC

In its 13F for Q3 2024 (holdings as of September 30, 2024, filed November 12, 2024), Monashee Investment Management LLC reported 103 stock positions worth $903.5 million. Its top holding was iShares Core S&P 500 ETF (IVV) at 17.1% of the portfolio, followed by Vanguard S&P 500 ETF (VOO, 17.0%) and Vanguard Ftse Developed ETF (VEA, 9.9%). Compared with Q2 2024, it opened 64 new positions, sold out of 33, added to 11 and reduced 17. The biggest buy was a new position in Casella Waste Systems Class A (CWST) and the biggest sale an exit from Birkenstock (BIRK).

Most Recent 13F
Q2 2026
Location
Boston, MA
CIK
0001627608
Portfolio Value
$903.5M (Q3 2024)
SEC Filing
0001172661-24-004571 ↗ filed Nov 12, 2024

Holdings Value

0$200.0M$400.0M$600.0M$800.0M$1.0B Q1 2024: $835.9M Q1 2024 Q2 2024: $766.6M Q2 2024 Q3 2024: $903.5M $903.5M Q3 2024 Q4 2024: $719.5M Q4 2024 Q1 2025: $826.9M Q1 2025 Q2 2025: $181.8M Q2 2025 Q3 2025: $194.0M Q3 2025 Q4 2025: $169.3M Q4 2025 Q1 2026: $154.8M Q1 2026 Q2 2026: $41.4M Q2 2026

Holdings 103 stocks · $903.5M

IVV iShares Core S&P 500 ETF 17.08% 267,610 $154.4M No change
VOO Vanguard S&P 500 ETF 17.03% 291,610 $153.9M No change
VEA Vanguard Ftse Developed ETF 9.92% 1,697,600 $89.7M Reduce -0.3%
IEFA iShares Core MSCI Eafe ETF 7.52% 870,580 $67.9M Reduce -0.4%
VWO Vanguard Ftse Emerging Marke 5.65% 1,066,560 $51.0M Add +0.8%
IEMG iShares Core MSCI Emerging 4.86% 764,100 $43.9M Add +1.1%
ITOT iShares Core S&P Total U.S. 2.94% 211,260 $26.5M No change
VTI VG Morningstar TS MKT ETF-US 2.94% 93,660 $26.5M No change
CWST Casella Waste Systems Inc. Class A 1.49% 135,000 $13.4M New
AER Aercap Holdings NV 1.26% 120,000 $11.4M No change
VIK Viking Holdings Ltd. 1.24% 320,000 $11.2M Add +82.9%
AHR American Healthcare REIT Inc. 1.08% 375,000 $9.8M Reduce -2.6%
LINE Lineage Inc. 1.04% 120,000 $9.4M New
SOC Sable Offshore Corp. 0.92% 350,000 $8.3M New
NEM Newmont Corp. 0.89% 150,000 $8.0M New
GPCR Structure Therapeutics Inc. 0.78% 159,608 $7.0M Add +219.2%
GEHC GE Healthcare Technology 0.73% 70,000 $6.6M New
GEV GE Vernova Inc. 0.71% 25,000 $6.4M New
BDSX Biodesix Inc. 0.69% 3,500,879 $6.2M Add +7.4%
ULS Ul Solutions Inc. Class A 0.65% 118,543 $5.8M Add +137.2%
GTES Gates Industrial Corp. UK Ltd. 0.60% 310,000 $5.4M Reduce -20.5%
PACS Pacs Group Inc. 0.60% 135,000 $5.4M New
PLTR Palantir Technologies Inc. Class A 0.54% 130,000 $4.8M New
PCVX Vaxcyte Inc. 0.51% 40,000 $4.6M New
ARDT Ardent Health Inc. 0.50% 244,089 $4.5M New
MSTR Strategy Inc. filed as MICROSTRATEGY INC 0.49% 26,500 $4.5M New
CDTX Cidara Therapeutics Inc. 0.44% 369,099 $4.0M No change
HESM Hess Midstream LP Class A 0.43% 110,000 $3.9M New
CRBG Corebridge Financial Inc. 0.43% 131,722 $3.8M Reduce -50.9%
HEI Heico Corp. 0.41% 14,000 $3.7M New
PWP Perella Weinberg Partners 0.40% 185,981 $3.6M Reduce -19.9%
NUVL Nuvalent Inc. Class A 0.40% 35,000 $3.6M New
TCOM Trip.com Group Ltd.-ADR 0.39% 60,000 $3.6M New
VSEC Vse Corp. 0.39% 42,682 $3.5M Add +4.4%
ROIV Roivant Sciences Ltd. 0.39% 303,575 $3.5M No change
PKX Posco Holdings Inc. -Spon ADR 0.39% 50,000 $3.5M New
WAY Waystar Holding Corp. 0.39% 125,000 $3.5M Reduce -37.5%
SLDB Solid Biosciences Inc. 0.37% 485,000 $3.4M Add +7.8%
TBBB BBB Foods Inc. Class A 0.37% 110,000 $3.3M Reduce -33.3%
KGS Kodiak Gas Services Inc. 0.36% 112,683 $3.3M New
ALKT Alkami Technology Inc. 0.35% 100,000 $3.2M Reduce -13.0%
CAVA Cava Group Inc. 0.34% 25,000 $3.1M New
TPG TPG Inc. 0.34% 53,618 $3.1M New
ZETA Zeta Global Holdings Corp. Class A 0.33% 101,000 $3.0M New
LTM Latam Airlines Group SA-ADR 0.33% 112,933 $3.0M New
HUMA Humacyte Inc. 0.32% 535,000 $2.9M Add +91.1%
VNOM Viper Energy Inc. 0.30% 60,000 $2.7M New
CNTA Centessa Pharmaceuticals Ltd. 0.29% 161,293 $2.6M Add +56.3%
ZBIO Zenas Biopharma Inc. 0.28% 150,000 $2.5M New
MLTX Moonlake Immunotherapeutics 0.28% 50,000 $2.5M No change
GRDN Guardian Phrmcy Services-A 0.28% 150,000 $2.5M New
FUN Six Flags Entertainment Corp. 0.27% 60,000 $2.4M New
HLI Houlihan Lokey Inc. 0.26% 15,000 $2.4M New
AUR Aurora Innovation Inc. 0.26% 400,000 $2.4M New
RLAY Relay Therapeutics Inc. 0.25% 320,000 $2.3M New
CON Concentra Group Holdings Par 0.25% 100,496 $2.2M New
IBTA Ibotta Inc. Class A 0.24% 35,284 $2.2M New
WVE Wave Life Sciences Ltd. 0.24% 260,000 $2.1M New
MDXH Mdxhealth 0.23% 1,000,000 $2.1M New
LTH Life Time Group Holdings Inc. 0.23% 85,000 $2.1M New
MC Moelis & Co. Class A 0.23% 30,000 $2.1M New
RITM Rithm Capital Corp. 0.23% 180,000 $2.0M New
RNAM Avidity Biosciences Inc. 0.22% 44,000 $2.0M Reduce -12.0%
EWTX Edgewise Therapeutics Inc. 0.22% 75,000 $2.0M New
BIOA Bioage Labs Inc. 0.22% 95,000 $2.0M New
GPGI Gpgi Inc. filed as COMPOSECURE INC 0.22% 140,000 $2.0M Reduce -54.8%
AROC Archrock Inc. 0.21% 95,000 $1.9M New
MGTX Meiragtx Holdings PLC 0.21% 450,492 $1.9M New
HPE Hewlett Packard Enterprise 0.20% 90,000 $1.8M New
BKV BKV Corporation 0.20% 100,000 $1.8M New
REVG Rev Group Inc. 0.20% 65,000 $1.8M No change
ACHR Archer Aviation Inc. Class A 0.20% 600,000 $1.8M New
XNCR Xencor Inc. 0.18% 80,000 $1.6M New
IVT Inventrust Properties Corp. 0.17% 55,000 $1.6M New
IRT Independence Realty Trust Inc. 0.17% 75,000 $1.5M New
ASND Ascendis Pharma A/S 0.17% 10,000 $1.5M New
SCPH Scpharmaceuticals Inc. 0.16% 319,795 $1.5M New
CRGY Crescent Energy Inc. Class A 0.16% 130,000 $1.4M Reduce -31.6%
HE Hawaiian Electric Inds 0.16% 145,000 $1.4M New
TWFG TWFG Inc. 0.15% 51,277 $1.4M New
MLNK Meridianlink Inc. 0.15% 65,000 $1.3M New
CHWY Chewy Inc. Class A 0.15% 45,000 $1.3M New
MBX MBX Biosciences Inc. 0.14% 50,000 $1.3M New
NHI Natl Health Investors Inc. filed as NATIONAL HEALTH INVS INC 0.14% 15,000 $1.3M New
JD Jd.com Inc.-ADR 0.13% 30,000 $1.2M New
CLYM Climb Bio Inc. filed as ELIEM THERAPEUTICS INC 0.13% 230,000 $1.2M New
SNOW Snowflake Inc. 0.13% 10,000 $1.1M New
IDYA Ideaya Biosciences Inc. 0.12% 35,000 $1.1M New
PSBD Palmer Square Capital BDC Inc. 0.12% 65,400 $1.1M Reduce -18.2%
PGY Pagaya Technologies Ltd. Class A 0.12% 100,000 $1.1M New
ZVRA Zevra Therapeutics Inc. 0.12% 150,000 $1.0M New
ALGM Allegro Microsystems Inc. 0.10% 40,000 $932K New
CMPX Compass Therapeutics Inc. 0.10% 500,000 $920K No change
MSDL Morgan Stanley Direct Lendin 0.10% 44,956 $889K Reduce -27.9%
GOSS Gossamer Bio Inc. 0.09% 859,854 $848K No change
IONS Ionis Pharmaceuticals Inc. 0.09% 20,000 $801K New
CSW CSW Industrials Inc. 0.08% 2,000 $733K New
URGN Urogen Pharma Ltd. 0.08% 55,000 $699K Add +35.8%
FSM Fortuna Mining Corp. 0.08% 150,000 $695K Reduce -25.0%
SVCO Silvaco Group Inc. 0.05% 34,580 $494K Reduce -39.4%

Show all 103 holdings

Other holdings (7): bonds, preferreds, convertibles and warrants · $20.0M (not counted above)
SecurityClassShares / PrincipalValueChange
HP ENTERPRISE CO (HPE 7.625 09/01/27) 7.625 MAND CONV 125,000$7.6MNew
NEXTERA ENERGY INC (NEE 7.299 06/01/27) UNIT 06/01/2027 85,000$4.7MAdd +325.0%
WAYFAIR INC (W 3.25 09/15/27) NOTE 3.250% 9/1 · principal 2,500,000$3.0MNew
SPOTIFY USA INC (SPOT 0 03/15/26) NOTE 3/1 · principal 3,000,000$3.0MNew
SOUTHWEST AIRLINES CO (LUV 1.25 05/01/25) NOTE 1.250% 5/0 · principal 1,500,000$1.5MNew
NAMSW Newamsterdam Pharma Co. NV-27 *W EXP 99/99/999 31,189$218KNew
SRZNW Surrozen Inc.-CW25 *W EXP 08/01/203 82,986$855New

Total filed on the 13F, all lines: $923.5M.

Portfolio Sells Q2 2024 → Q3 2024

BIRK Birkenstock Holding PLC Sold out 0.00% −1.42
ARES Ares Management Corp. Class A Sold out 0.00% −1.30
DELL Dell Technologies -C Sold out 0.00% −1.08
VEA Vanguard Ftse Developed ETF Reduce -0.3% 9.92% −1.05
AMD Advanced Micro Devices Sold out 0.00% −0.95
KVUE Kenvue Inc. Sold out 0.00% −0.90
IEFA iShares Core MSCI Eafe ETF Reduce -0.4% 7.52% −0.76
SIX Six Flags Entertainment Corp. Sold out 0.00% −0.69
CRBG Corebridge Financial Inc. Reduce -50.9% 0.43% −0.59
ALIT Alight Inc. Class A Sold out 0.00% −0.56
RARE Ultragenyx Pharmaceutical Inc. Sold out 0.00% −0.54
SMCI Super Micro Computer Inc. Sold out 0.00% −0.48
TEM Tempus AI Inc. Class A Sold out 0.00% −0.47
GFS Globalfoundries Inc. Sold out 0.00% −0.43
DYN Dyne Therapeutics Inc. Sold out 0.00% −0.39
DAWN Day One Biopharmaceuticals I Sold out 0.00% −0.36
LB Landbridge Co. LLC-A Sold out 0.00% −0.30
RXRX Recursion Pharmaceuticals-A Sold out 0.00% −0.28
PTON Peloton Interactive Inc. Class A Sold out 0.00% −0.24
NVDA Nvidia Corp. Sold out 0.00% −0.24
GTES Gates Industrial Corp. UK Ltd. Reduce -20.5% 0.60% −0.20
LPG Dorian LPG Ltd. Sold out 0.00% −0.18
WAY Waystar Holding Corp. Reduce -37.5% 0.39% −0.18
PCRX Pacira Biosciences Inc. Sold out 0.00% −0.15
TBBB BBB Foods Inc. Class A Reduce -33.3% 0.37% −0.15
RZLT Rezolute Inc. Sold out 0.00% −0.14
JILL J. Jill Inc. Sold out 0.00% −0.14
CRGY Crescent Energy Inc. Class A Reduce -31.6% 0.16% −0.14
SEDG Solaredge Technologies Inc. Sold out 0.00% −0.13
PLGO Pelagos Insurance Capital LT Sold out 0.00% −0.13
AMCX AMC Global Media Inc. Sold out 0.00% −0.13
RAPP Rapport Therapeutics Inc. Sold out 0.00% −0.12
BE Bloom Energy Corp. Class A Sold out 0.00% −0.12
CCC CCC Intelligent Solutions Ho Sold out 0.00% −0.11
LFST Lifestance Health Group Inc. Sold out 0.00% −0.10
ANNX Annexon Inc. Sold out 0.00% −0.10
PWP Perella Weinberg Partners Reduce -19.9% 0.40% −0.09
KBDC Kayne Anderson BDC Inc. Sold out 0.00% −0.09
MSDL Morgan Stanley Direct Lendin Reduce -27.9% 0.10% −0.08
SVCO Silvaco Group Inc. Reduce -39.4% 0.05% −0.08
ALKT Alkami Technology Inc. Reduce -13.0% 0.35% −0.08
PAL Proficient Auto Logistics Inc. Sold out 0.00% −0.07
UNICYCIVE THERAPEUTICS INC Sold out 0.00% −0.07
GPGI Gpgi Inc. Reduce -54.8% 0.22% −0.06
FSM Fortuna Mining Corp. Reduce -25.0% 0.08% −0.05
PSBD Palmer Square Capital BDC Inc. Reduce -18.2% 0.12% −0.05
WBTN Webtoon Entertainment Inc. Sold out 0.00% −0.04
RNAM Avidity Biosciences Inc. Reduce -12.0% 0.22% −0.04
RGLS Regulus Therapeutics Inc. Reduce -25.4% 0.03% −0.02
AHR American Healthcare REIT Inc. Reduce -2.6% 1.08% +0.35

Portfolio Buys Q2 2024 → Q3 2024

CWST Casella Waste Systems Inc. Class A New 1.49% +1.49
LINE Lineage Inc. New 1.04% +1.04
SOC Sable Offshore Corp. New 0.92% +0.92
NEM Newmont Corp. New 0.89% +0.89
GEHC GE Healthcare Technology New 0.73% +0.73
GEV GE Vernova Inc. New 0.71% +0.71
PACS Pacs Group Inc. New 0.60% +0.60
PLTR Palantir Technologies Inc. Class A New 0.54% +0.54
GPCR Structure Therapeutics Inc. Add +219.2% 0.78% +0.52
PCVX Vaxcyte Inc. New 0.51% +0.51
ARDT Ardent Health Inc. New 0.50% +0.50
MSTR Strategy Inc. New 0.49% +0.49
VIK Viking Holdings Ltd. Add +82.9% 1.24% +0.46
HESM Hess Midstream LP Class A New 0.43% +0.43
HEI Heico Corp. New 0.41% +0.41
NUVL Nuvalent Inc. Class A New 0.40% +0.40
TCOM Trip.com Group Ltd.-ADR New 0.39% +0.39
PKX Posco Holdings Inc. -Spon ADR New 0.39% +0.39
ULS Ul Solutions Inc. Class A Add +137.2% 0.65% +0.37
KGS Kodiak Gas Services Inc. New 0.36% +0.36
CAVA Cava Group Inc. New 0.34% +0.34
TPG TPG Inc. New 0.34% +0.34
ZETA Zeta Global Holdings Corp. Class A New 0.33% +0.33
LTM Latam Airlines Group SA-ADR New 0.33% +0.33
VNOM Viper Energy Inc. New 0.30% +0.30
ZBIO Zenas Biopharma Inc. New 0.28% +0.28
GRDN Guardian Phrmcy Services-A New 0.28% +0.28
FUN Six Flags Entertainment Corp. New 0.27% +0.27
HLI Houlihan Lokey Inc. New 0.26% +0.26
AUR Aurora Innovation Inc. New 0.26% +0.26
RLAY Relay Therapeutics Inc. New 0.25% +0.25
CON Concentra Group Holdings Par New 0.25% +0.25
IBTA Ibotta Inc. Class A New 0.24% +0.24
WVE Wave Life Sciences Ltd. New 0.24% +0.24
MDXH Mdxhealth New 0.23% +0.23
LTH Life Time Group Holdings Inc. New 0.23% +0.23
MC Moelis & Co. Class A New 0.23% +0.23
RITM Rithm Capital Corp. New 0.23% +0.23
EWTX Edgewise Therapeutics Inc. New 0.22% +0.22
BIOA Bioage Labs Inc. New 0.22% +0.22
AROC Archrock Inc. New 0.21% +0.21
MGTX Meiragtx Holdings PLC New 0.21% +0.21
HPE Hewlett Packard Enterprise New 0.20% +0.20
BKV BKV Corporation New 0.20% +0.20
ACHR Archer Aviation Inc. Class A New 0.20% +0.20
XNCR Xencor Inc. New 0.18% +0.18
IVT Inventrust Properties Corp. New 0.17% +0.17
IRT Independence Realty Trust Inc. New 0.17% +0.17
ASND Ascendis Pharma A/S New 0.17% +0.17
CNTA Centessa Pharmaceuticals Ltd. Add +56.3% 0.29% +0.16

Notes & Other Activity Q2 2024 → Q3 2024

HP ENTERPRISE CO (HPE 7.625 09/01/27) 7.625 MAND CONV New 125,000 $7.6M
NEXTERA ENERGY INC (NEE 7.299 06/01/27) UNIT 06/01/2027 Add +325.0% 85,000 $4.7M
NEXTERA ENERGY INC (NEE 6.926 09/01/25) UNIT 09/01/2025 Sold out 100,000 $4.1Mbefore exit
WAYFAIR INC (W 3.25 09/15/27) NOTE 3.250% 9/1 · principal New 2,500,000 $3.0M
SPOTIFY USA INC (SPOT 0 03/15/26) NOTE 3/1 · principal New 3,000,000 $3.0M
DIGITALOCEAN HOLDINGS (DOCN 0 12/01/26) NOTE 12/0 · principal Sold out 2,000,000 $1.7Mbefore exit
SOUTHWEST AIRLINES CO (LUV 1.25 05/01/25) NOTE 1.250% 5/0 · principal New 1,500,000 $1.5M
NAMSW Newamsterdam Pharma Co. NV-27 *W EXP 99/99/999 New 31,189 $218K
SRZNW Surrozen Inc.-CW25 *W EXP 08/01/203 New 82,986 $855

Bonds, preferreds, convertibles and warrants; not part of the stock holdings or percentages above.

All Filings

QuarterPositions13F Reported ValueTop Holdings
Q2 2026 17$41.4MSLDB, DLR, SYRE, ADT, TNGX
Q1 2026 41$154.8MTERN, MDLN, NRG, FPS, SLDB
Q4 2025 37$169.3MGPCR, MDLN, SOFI, ULS, INSM
Q3 2025 58$194.0MBBIO, FWDI, WYFI, FIGR, NTSK
Q2 2025 36$181.8MLLY, CORZ, KTOS, BBIO, SLDB
Q1 2025 41$826.9MIVV, VOO, VEA, IEFA, VWO
Q4 2024 34$719.5MIVV, VOO, VEA, IEFA, VWO
Q3 2024 103$903.5MIVV, VOO, VEA, IEFA, VWO
Q2 2024 72$766.6MIVV, VOO, VEA, IEFA, VWO
Q1 2024 99$835.9MIVV, VOO, VEA, IEFA, VWO