Monashee Investment Management LLC

CIK

1627608

Location

Boston, MA

Portfolio Value

Small $144,931,181

Diversification

Diversified

Filing Date

Global Rank

#4,570 / 8,232 ▼ 60

Top Industry

Biotechnology 50.7%

3Y Alpha vs SPY

+2.6%

Period ended 2 months ago

Filed May 13, 2026 · 32d

25 quarters · since Mar 2020

Clone Performance

Jun 2023–Jun 2026 · vs SPY

Hypothetical growth of cloning every reported 13F position and rebalancing on each filing, indexed to the same start.

Cloned portfolio

+88.1%

SPY

+76.3%

Annualised alpha

+2.6%

Max drawdown

−27.6%

Estimate. 13F holdings are quarter-lagged and long-only, so the clone rebalances about 45 days after each period end — when the filing becomes public — and excludes options and short positions. Past performance does not predict future results.

Portfolio Concentration

38 positions · as of Mar 31, 2026 · Δ vs Dec 31, 2025

Top Position

10.9%

+1.6 pts

Top 5

42.8%

+8.3 pts

Top 10

61.8%

+4.1 pts

HHI

514

Diversified+64

Portfolio Trend

25 quarters · across all stocks

Sector Breakdown

As of Mar 31, 2026

Sector	% Portfolio	Value	Positions
Healthcare	61.7%	$89,463,476	20
Technology	11.2%	$16,241,139	7
Industrials	10.2%	$14,843,500	2
Utilities	10.0%	$14,469,394	3
Financial Services	3.6%	$5,225,422	3
Energy	2.4%	$3,509,750	2
Real Estate	0.8%	$1,178,500	1

Last Quarter's Activity

Export CSV

Mar 31, 2026 vs Dec 31, 2025

Added To

Positions the filer increased

7 positions

Ticker	Company	Δ Shares	Shares	Value
ADT	ADT Inc.	+300,000	700,000	$4,599,000
TERN	Terns Pharmaceuticals, Inc.	+102,687	300,000	$15,816,000
SLDB	Solid Biosciences Inc.	+70,524	1,420,295	$10,226,124
ENGN	enGene Therapeutics Inc.	+25,000	320,000	$2,179,200
CYTK	Cytokinetics Inc	+25,000	100,000	$6,591,000
AMBQ	Ambiq Micro, Inc.	+18,667	103,756	$2,636,439
NKTR	Nektar Therapeutics	+5,866	100,000	$7,195,000
No positions match the current search.

Trimmed

Positions the filer reduced

6 positions

Ticker	Company	Δ Shares	Shares	Value
CMPX	Compass Therapeutics, Inc.	−741,135	258,865	$1,369,395
GPCR	Structure Therapeutics Inc.	−175,000	50,000	$2,410,000
KYMR	Kymera Therapeutics, Inc.	−64,900	35,100	$2,923,479
WYFI	WhiteFiber, Inc.	−60,000	80,000	$952,800
BBIO	BridgeBio Pharma, Inc.	−32,861	67,139	$4,985,742
EVMN	Evommune, Inc.	−3,899	179,340	$4,123,026
No positions match the current search.

New Positions

Positions the filer opened this quarter

24 positions

Ticker	Company	Shares	Value
NRG	Nrg Energy, Inc.	85,000	$12,421,900
FPS	Forgent Power Solutions, Inc.	350,000	$10,244,500
ASTS	AST SpaceMobile, Inc.	45,000	$3,729,150
SNDK	Sandisk Corp	5,000	$3,176,700
MANE	Veradermics, Inc	50,000	$3,157,500
ZBIO	Zenas BioPharma, Inc.	150,000	$2,932,500
MMED	MiniMed Group, Inc.	175,000	$2,611,000
FIGR	Figure Technology Solutions, Inc.	76,520	$2,597,854
SGP	SpyGlass Pharma, Inc.	95,000	$2,461,450
CRSP	CRISPR Therapeutics AG	50,000	$2,378,500
INGM	Ingram Micro Holding Corp	100,000	$2,331,000
GFS	GLOBALFOUNDRIES Inc.	50,000	$2,224,000
FLOC	Flowco Holdings Inc.	100,000	$2,060,000
SABS	SAB Biotherapeutics, Inc.	500,000	$1,915,000
ACRS	Aclaris Therapeutics, Inc.	500,000	$1,875,000
HNRG	Hallador Energy Co	90,000	$1,465,200
NVGS	Navigator Holdings Ltd.	75,000	$1,449,750
HLXC	Helix Acquisition Corp. III	137,113	$1,393,068
BTGO	Bitgo Holdings, Inc.	150,000	$1,234,500
COHR	Coherent Corp.	5,000	$1,191,050
JAN	Janus Living, Inc.	50,000	$1,178,500
VIR	Vir Biotechnology, Inc.	100,000	$896,000
NRGV	Energy Vault Holdings, Inc.	176,453	$582,294
MSLE	Satellos Bioscience Inc.	12,000	$67,560
No positions match the current search.

Sold Out

Positions the filer fully exited

22 positions

Ticker	Company	Shares	Value
SOFI	SoFi Technologies, Inc.	400,000	$10,472,000
ULS	UL Solutions Inc.	130,000	$10,251,800
INSM	INSMED Inc	50,000	$8,702,000
MIAX	Miami International Holdings, Inc.	175,000	$7,766,500
LGN	Legence Corp.	137,940	$5,936,937
IMNM	Immunome Inc.	274,861	$5,904,014
ITT	Itt Inc.	32,067	$5,563,945
WLTH	Wealthfront Corp	300,000	$4,077,000
GOSS	Gossamer Bio, Inc.	1,000,000	$3,100,000
LMRI	Lumexa Imaging Holdings, Inc.	150,000	$2,775,000
DYN	Dyne Therapeutics, Inc.	114,525	$2,240,109
AERO	Grupo Aeromexico, S.A.B. de C.V.	91,619	$2,011,953
KYTX	Kyverna Therapeutics, Inc.	195,000	$1,833,000
IMTX	Immatics N.V.	160,336	$1,683,528
CTNM	Contineum Therapeutics, Inc.	137,430	$1,570,824
DNLI	Denali Therapeutics Inc.	91,620	$1,512,646
VERA	Vera Therapeutics, Inc.	22,905	$1,159,909
LPTH	Lightpath Technologies Inc	100,000	$1,080,000
BDSX	Biodesix Inc	112,344	$763,939
TARA	Protara Therapeutics, Inc.	125,000	$666,250
IMA	ImageneBio, Inc.	91,621	$632,184
IBIO	iBio, Inc.	274,862	$530,483
No positions match the current search.

Portfolio Positions

Compact Export CSV View 13F filing

38 positions · $144,931,181 total · as of Mar 31, 2026

All sectors Energy Financial Services Healthcare Industrials Real Estate Technology Utilities

Ticker	Company	Type	Shares	Δ Shares	Value (USD)	% Δ Value	% of Portfolio
TERN	Terns Pharmaceuticals, Inc. Healthcare	Added	300,000	+102,687	$15,816,000	+98.4%	10.91%
MDLN	Medline Inc. Healthcare	Held	300,000	0	$13,350,000	+6.0%	9.21%
NRG	Nrg Energy, Inc. Utilities	NEW	85,000	NEW	$12,421,900	NEW	8.57%
FPS	Forgent Power Solutions, Inc. Industrials	NEW	350,000	NEW	$10,244,500	NEW	7.07%
SLDB	Solid Biosciences Inc. Healthcare	Added	1,420,295	+70,524	$10,226,124	+34.3%	7.06%
NKTR	Nektar Therapeutics Healthcare	Added	100,000	+5,866	$7,195,000	+80.8%	4.96%
CYTK	Cytokinetics Inc Healthcare	Added	100,000	+25,000	$6,591,000	+38.3%	4.55%
BBIO	BridgeBio Pharma, Inc. Healthcare	Reduced	67,139	-32,861	$4,985,742	−34.8%	3.44%
ADT	ADT Inc. Industrials	Added	700,000	+300,000	$4,599,000	+42.5%	3.17%
EVMN	Evommune, Inc. Healthcare	Reduced	179,340	-3,899	$4,123,026	+31.4%	2.84%
ASTS	AST SpaceMobile, Inc. Technology	NEW	45,000	NEW	$3,729,150	NEW	2.57%
SNDK	Sandisk Corp Technology	NEW	5,000	NEW	$3,176,700	NEW	2.19%
MANE	Veradermics, Inc Healthcare	NEW	50,000	NEW	$3,157,500	NEW	2.18%
ZBIO	Zenas BioPharma, Inc. Healthcare	NEW	150,000	NEW	$2,932,500	NEW	2.02%
KYMR	Kymera Therapeutics, Inc. Healthcare	Reduced	35,100	-64,900	$2,923,479	−62.4%	2.02%
AMBQ	Ambiq Micro, Inc. Technology	Added	103,756	+18,667	$2,636,439	+8.7%	1.82%
MMED	MiniMed Group, Inc. Healthcare	NEW	175,000	NEW	$2,611,000	NEW	1.80%
FIGR	Figure Technology Solutions, Inc. Financial Services	NEW	76,520	NEW	$2,597,854	NEW	1.79%
SGP	SpyGlass Pharma, Inc. Healthcare	NEW	95,000	NEW	$2,461,450	NEW	1.70%
GPCR	Structure Therapeutics Inc. Healthcare	Reduced	50,000	-175,000	$2,410,000	−84.6%	1.66%
CRSP	CRISPR Therapeutics AG Healthcare	NEW	50,000	NEW	$2,378,500	NEW	1.64%
INGM	Ingram Micro Holding Corp Technology	NEW	100,000	NEW	$2,331,000	NEW	1.61%
GFS	GLOBALFOUNDRIES Inc. Technology	NEW	50,000	NEW	$2,224,000	NEW	1.53%
ENGN	enGene Therapeutics Inc. Healthcare	Added	320,000	+25,000	$2,179,200	−18.2%	1.50%
FLOC	Flowco Holdings Inc. Energy	NEW	100,000	NEW	$2,060,000	NEW	1.42%
SABS	SAB Biotherapeutics, Inc. Healthcare	NEW	500,000	NEW	$1,915,000	NEW	1.32%
ACRS	Aclaris Therapeutics, Inc. Healthcare	NEW	500,000	NEW	$1,875,000	NEW	1.29%
HNRG	Hallador Energy Co Utilities	NEW	90,000	NEW	$1,465,200	NEW	1.01%
NVGS	Navigator Holdings Ltd. Energy	NEW	75,000	NEW	$1,449,750	NEW	1.00%
HLXC	Helix Acquisition Corp. III Financial Services	NEW	137,113	NEW	$1,393,068	NEW	0.96%
CMPX	Compass Therapeutics, Inc. Healthcare	Reduced	258,865	-741,135	$1,369,395	−74.5%	0.94%
BTGO	Bitgo Holdings, Inc. Financial Services	NEW	150,000	NEW	$1,234,500	NEW	0.85%
COHR	Coherent Corp. Technology	NEW	5,000	NEW	$1,191,050	NEW	0.82%
JAN	Janus Living, Inc. Real Estate	NEW	50,000	NEW	$1,178,500	NEW	0.81%
WYFI	WhiteFiber, Inc. Technology	Reduced	80,000	-60,000	$952,800	−56.9%	0.66%
VIR	Vir Biotechnology, Inc. Healthcare	NEW	100,000	NEW	$896,000	NEW	0.62%
NRGV	Energy Vault Holdings, Inc. Utilities	NEW	176,453	NEW	$582,294	NEW	0.40%
MSLE	Satellos Bioscience Inc. Healthcare	NEW	12,000	NEW	$67,560	NEW	0.05%