Private company

ACORN BIOVENTURES, L.P.

American company, incorporated in Delaware. Summary from the record

Last updated Oct 21, 2026.

Overview

HeadquartersDE¹

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Corporate structure

ACORN BIOVENTURES, L.P. sits at the top of its group. 16 entities, 1 country on record. Switch between the flow chart and the network, and select any entity to see its details.

ACORN BIOVENTURES, L.P. DE
- BioAtla Stake · San Diego
- Candel Therapeutics Stake · Auburndale
- Cardiff Oncology, Inc. Stake · San Diego, California, United States
- Cyclacel Stake · Berkeley Heights
- enGene Therapeutics Inc. Stake · Z4
- Jasper Therapeutics, Inc. Stake · Redwood City, California
- Karyopharm Therapeutics Inc. Stake · Wilmington, Delaware, United States
- LeonaBio, Inc. Stake · Bothell, Washington
- Mural Oncology plc Stake · L2
- OnKure Therapeutics, Inc. Stake · Boulder, Colorado
- OptiNose, Inc. Stake · Yardley, Pennsylvania, United States
- Puma Biotechnology Stake · Los Angeles
- Q32 Bio Inc. Stake · Waltham, Massachusetts
- X4 Pharmaceuticals, Inc Stake · Cambridge, Massachusetts, United States
- Y-mAbs Therapeutics, Inc. Stake · Princeton, New Jersey

Built from major holders from Schedules 13D and 13G; stakes of 5% or more it reported on Schedules 13D and 13G (15 companies). Each entity in the chart links to its source.

Stakes it holds

ACORN BIOVENTURES, L.P. has told the SEC it owns more than 5% of 15 companies, latest first (Schedules 13D and 13G).

Karyopharm Therapeutics Inc.SCHEDULE 13G/A May 15, 2026 to Oct 8, 2026²
LeonaBio, Inc.SCHEDULE 13G/A Dec 23, 2025 to Aug 20, 2026³
enGene Therapeutics Inc.SCHEDULE 13G Jul 22, 2026⁴
OnKure Therapeutics, Inc.SCHEDULE 13G Oct 9, 2024 to Apr 1, 2026⁵
Jasper Therapeutics, Inc.SCHEDULE 13G/A Dec 2, 2025 to Jan 26, 2026⁶
Y-mAbs Therapeutics, Inc.SCHEDULE 13G/A Apr 3, 2023 to Aug 20, 2025⁷
Candel TherapeuticsSCHEDULE 13G Jun 30, 2025⁸
BioAtlaSCHEDULE 13G/A Apr 27, 2023 to May 20, 2025⁹
Mural Oncology plcSCHEDULE 13G/A Aug 13, 2024 to Feb 14, 2025¹⁰
Puma BiotechnologySCHEDULE 13G/A Sep 1, 2023 to Feb 14, 2025¹¹
Q32 Bio Inc.SC 13D Apr 4, 2024¹²
X4 Pharmaceuticals, IncSC 13G Feb 14, 2024¹³
OptiNose, Inc.SC 13G/A Dec 5, 2022 to Feb 13, 2024¹⁴
CyclacelSC 13G/A Jan 26, 2023 to Feb 7, 2024¹⁵
Cardiff Oncology, Inc.SC 13G/A Jan 26, 2023 to Feb 6, 2024¹⁶

Sources

The numbers on this page point here. Each one links to the record it came from.

1
SEC EDGARACORN BIOVENTURES, L.P. filings on SEC EDGAR
2
SEC EDGARACORN BIOVENTURES, L.P. SCHEDULE 13G/A on Karyopharm Therapeutics Inc.
3
SEC EDGARACORN BIOVENTURES, L.P. SCHEDULE 13G/A on LeonaBio, Inc.
4
SEC EDGARACORN BIOVENTURES, L.P. SCHEDULE 13G on enGene Therapeutics Inc.
5
SEC EDGARACORN BIOVENTURES, L.P. SCHEDULE 13G on OnKure Therapeutics, Inc.
6
SEC EDGARACORN BIOVENTURES, L.P. SCHEDULE 13G/A on Jasper Therapeutics, Inc.
7
SEC EDGARACORN BIOVENTURES, L.P. SCHEDULE 13G/A on Y-mAbs Therapeutics, Inc.
8
SEC EDGARACORN BIOVENTURES, L.P. SCHEDULE 13G on Candel Therapeutics
9
SEC EDGARACORN BIOVENTURES, L.P. SCHEDULE 13G/A on BioAtla
10
SEC EDGARACORN BIOVENTURES, L.P. SCHEDULE 13G/A on Mural Oncology plc
11
SEC EDGARACORN BIOVENTURES, L.P. SCHEDULE 13G/A on Puma Biotechnology
12
SEC EDGARACORN BIOVENTURES, L.P. SC 13D on Q32 Bio Inc.
13
SEC EDGARACORN BIOVENTURES, L.P. SC 13G on X4 Pharmaceuticals, Inc
14
SEC EDGARACORN BIOVENTURES, L.P. SC 13G/A on OptiNose, Inc.
15
SEC EDGARACORN BIOVENTURES, L.P. SC 13G/A on Cyclacel
16
SEC EDGARACORN BIOVENTURES, L.P. SC 13G/A on Cardiff Oncology, Inc.