Monashee Investment Management LLC

CIK

1627608

Location

Boston, MA

Portfolio Value

Small $144,931,181

Diversification

Diversified

Filing Date

Global Rank

#4,924 / 8,623 ▼ 187 · as of Mar 2026

Top Industry

Biotechnology 50.7%

3Y Alpha vs SPY

+1.7%

Period ended 4 months ago

Filed May 13, 2026 · 3mo

25 quarters · since Mar 2020

Clone Performance

Jul 2023–Jul 2026 · vs SPY

Hypothetical growth of buying every stock this filer reported holding, rebalancing on each filing and indexed to the same start. Option positions cannot be bought this way and are left out.

Cloned portfolio

+79.0%

SPY

+65.3%

Annualised alpha

+3.2%

Max drawdown

−27.6%

Estimate. 13F holdings are quarter-lagged, so the clone rebalances about 45 days after each period end — when the filing becomes public — and it excludes option and short positions. It tracks 98% of reported value on average across 13 quarters. Past performance does not predict future results.

Portfolio Concentration

38 tracked 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 tracked positions · $144,931,181 total · filing declares 45 positions · $183,824,446 · 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%

Covers the securities this platform tracks: U.S.-listed common stock and the put/call positions reported on it. A 13F can also report security types outside that coverage — preferred shares, bonds, warrants, untracked share classes — so the filing's own declared total can exceed the figures above. The source filing is linked at the top of this table.