Vault-13

Monashee Investment Management LLC

Boston, MA · CIK 1627608 · 13F filing filed 2026-08-13

SEC-registered investment adviser since 2014 · limited liability company

As an employer

Where they work

people there (dot area)number not reportedmain officeHover or tap a dot. Australian and UK companies are placed at their business or registered address, with their staff across the whole country.

Offices

From Form ADV: the main office and the other offices where it does advisory work (at most the 25 largest), with the people doing investment work at each. “About” is worked out: the firm's investment staff less its other offices. Each city links to the other managers there.

CityCountryPeople
Boston, MA (main office)United States United Statesabout 5
New York, NYUnited States United States2
LondonUnited Kingdom United Kingdom1

Map: places from GeoNames (CC BY 4.0), outlines from Natural Earth.

$59.6m reported value -67.6% vs Q1 2026
23positions
65.4%in top 10
21 new 0 added 2 reduced 43 sold out vs Q1 2026

Holdings, Q2 2026

The small lines show how much was held over the last 4 quarters (adjusted for stock splits).

#SecurityTickerShares Value% of portfolioChangeShares change
1 ALPHABET INC DEP SHS RP1/20 A GOOGL 6.25 05.15.29 A GOOGL 6.25 05.15.29 A 100,000 $5.1m8.54% 8.54% NewShares held: Q3 2025 0, Q4 2025 0, Q1 2026 0, Q2 2026 100.0k
2 ALPHABET INC DEP SHS RP1/20 B GOOGL 6.25 05.15.29 B GOOGL 6.25 05.15.29 B 100,000 $5.0m8.44% 8.44% NewShares held: Q3 2025 0, Q4 2025 0, Q1 2026 0, Q2 2026 100.0k
3 SOLID BIOSCIENCES INC COM NEW SLDB SLDB 500,000 $5.0m8.38% 8.38% ReducedShares held: Q3 2025 0, Q4 2025 1.3m, Q1 2026 1.4m, Q2 2026 500.0k -920.3k -920,295 -64.8%
4 DIGITAL RLTY TR INC COM DLR DLR 25,000 $4.5m7.53% 7.53% NewShares held: Q3 2025 0, Q4 2025 0, Q1 2026 0, Q2 2026 25.0k
5 SPYRE THERAPEUTICS INC COM NEW SYRE SYRE 50,000 $4.4m7.45% 7.45% NewShares held: Q3 2025 0, Q4 2025 0, Q1 2026 0, Q2 2026 50.0k
6 ADT INC DEL COM ADT ADT 600,000 $3.9m6.55% 6.55% ReducedShares held: Q3 2025 450.0k, Q4 2025 400.0k, Q1 2026 700.0k, Q2 2026 600.0k -100.0k -100,000 -14.3%
7 TANGO THERAPEUTICS INC COM TNGX TNGX 100,000 $3.1m5.25% 5.25% NewShares held: Q3 2025 0, Q4 2025 0, Q1 2026 0, Q2 2026 100.0k
8 CELCUITY INC NOTE 0.250% 8/0 · principal CELC 0.25 08.01.32 · principal CELC 0.25 08.01.32 2,500,000 $2.8m4.76% 4.76% NewPrincipal held: Q3 2025 0, Q4 2025 0, Q1 2026 0, Q2 2026 2.5m
9 SUPER MICRO COMPUTER INC 7 DEP CM SR A WI SMCI 7 06.01.29 SMCI 7 06.01.29 50,000 $2.6m4.36% 4.36% NewShares held: Q3 2025 0, Q4 2025 0, Q1 2026 0, Q2 2026 50.0k
10 LEGEND BIOTECH CORP SPONSORED ADS LEGN LEGN 85,385 $2.5m4.14% 4.14% NewShares held: Q3 2025 0, Q4 2025 0, Q1 2026 0, Q2 2026 85.4k
11 ALPHABET INC CAP STK CL A GOOGL GOOGL 6,000 $2.1m3.60% 3.60% NewShares held: Q3 2025 0, Q4 2025 0, Q1 2026 0, Q2 2026 6.0k
12 ALPHABET INC CAP STK CL C GOOG GOOG 6,000 $2.1m3.56% 3.56% NewShares held: Q3 2025 0, Q4 2025 0, Q1 2026 0, Q2 2026 6.0k
13 UNIQURE NV SHS QURE QURE 45,000 $2.1m3.48% 3.48% NewShares held: Q3 2025 40.0k, Q4 2025 0, Q1 2026 0, Q2 2026 45.0k
14 INNIO NV ORDINARY SHARES INIO INIO 47,650 $1.9m3.16% 3.16% NewShares held: Q3 2025 0, Q4 2025 0, Q1 2026 0, Q2 2026 47.6k
15 ACADIA RLTY TR COM SH BEN INT AKR AKR 85,385 $1.8m3.00% 3.00% NewShares held: Q3 2025 0, Q4 2025 0, Q1 2026 0, Q2 2026 85.4k
16 PATTERN GROUP INC COM SER A PTRN PTRN 64,039 $1.6m2.71% 2.71% NewShares held: Q3 2025 150.0k, Q4 2025 0, Q1 2026 0, Q2 2026 64.0k
17 PURECYCLE TECHNOLOGIES INC NOTE 4.750% 7/0 · principal PCT 4.75 07.01.32 · principal PCT 4.75 07.01.32 1,500,000 $1.5m2.58% 2.58% NewPrincipal held: Q3 2025 0, Q4 2025 0, Q1 2026 0, Q2 2026 1.5m
18 MOONLAKE IMMUNOTHERAPEUTICS CLASS A ORD MLTX MLTX 75,000 $1.5m2.45% 2.45% NewShares held: Q3 2025 0, Q4 2025 0, Q1 2026 0, Q2 2026 75.0k
19 WHITEHAWK MINERALS CORP CL A WHK WHK 51,232 $1.4m2.39% 2.39% NewShares held: Q3 2025 0, Q4 2025 0, Q1 2026 0, Q2 2026 51.2k
20 TAYSHA GENE THERAPIES INC COM SHS TSHA TSHA 200,000 $1.4m2.29% 2.29% NewShares held: Q3 2025 0, Q4 2025 0, Q1 2026 0, Q2 2026 200.0k
21 IMAGENEBIO INC COM IMA IMA 192,344 $1.1m1.90% 1.90% NewShares held: Q3 2025 0, Q4 2025 91.6k, Q1 2026 0, Q2 2026 192.3k
22 NUVATION BIO INC NOTE 0.750% 7/0 · principal NUVB 0.75 07.01.32 · principal NUVB 0.75 07.01.32 1,000,000 $1.1m1.77% 1.77% NewPrincipal held: Q3 2025 0, Q4 2025 0, Q1 2026 0, Q2 2026 1.0m
23 KARDIGAN INC COM KARD KARD 42,693 $1.0m1.71% 1.71% NewShares held: Q3 2025 0, Q4 2025 0, Q1 2026 0, Q2 2026 42.7k

Sold out since Q1 2026

SecurityTickerShares held beforeValue then
TERNS PHARMACEUTICALS INC 300,000 $15.8m300.0k shares
NEXTERA ENERGY INC NEE 7.375 02.15.29 NEE 7.375 02.15.29 299,970 $15.2m300.0k shares
MEDLINE INC MDLN MDLN 300,000 $13.3m300.0k shares
NRG ENERGY INC NRG NRG 85,000 $12.4m85.0k shares
FORGENT POWER SOLUTIONS INC FPS FPS 350,000 $10.2m350.0k shares
NEKTAR THERAPEUTICS NKTR NKTR 100,000 $7.2m100.0k shares
CYTOKINETICS INC CYTK CYTK 100,000 $6.6m100.0k shares
JOBY AVIATION INC JOBY 0.75 02.15.32 JOBY 0.75 02.15.32 7,000,000 $5.9m7.0m shares
PPL CORP PPL 7 02.15.29 PPL 7 02.15.29 101,300 $5.2m101.3k shares
BRIDGEBIO PHARMA INC BBIO BBIO 67,139 $5.0m67.1k shares
ORACLE CORP ORCL 6.5 01.15.29 D ORCL 6.5 01.15.29 D 100,000 $4.5m100.0k shares
EVOMMUNE INC EVMN EVMN 179,340 $4.1m179.3k shares
KKR & CO INC KKR 6.25 03.01.28 D KKR 6.25 03.01.28 D 100,000 $4.0m100.0k shares
AST SPACEMOBILE INC ASTS ASTS 45,000 $3.7m45.0k shares
ZENAS BIOPHARMA INC ZBIO 2.5 04.01.32 ZBIO 2.5 04.01.32 3,152,000 $3.2m3.2m shares
SANDISK CORP SNDK SNDK 5,000 $3.2m5.0k shares
VERADERMICS INC MANE MANE 50,000 $3.2m50.0k shares
ZENAS BIOPHARMA INC ZBIO ZBIO 150,000 $2.9m150.0k shares
KYMERA THERAPEUTICS INC KYMR KYMR 35,100 $2.9m35.1k shares
AMBIQ MICRO INC AMBQ AMBQ 103,756 $2.6m103.8k shares
MINIMED GROUP INC MMED MMED 175,000 $2.6m175.0k shares
FIGURE TECHNOLOGY SOLUTIO FIGR FIGR 76,520 $2.6m76.5k shares
SPYGLASS PHARMA INC SGP SGP 95,000 $2.5m95.0k shares
STRUCTURE THERAPEUTICS INC GPCR GPCR 50,000 $2.4m50.0k shares
CRISPR THERAPEUTICS AG CRSP CRSP 50,000 $2.4m50.0k shares