ORBIMED ADVISORS LLC - 14 Apr 2026 SCHEDULE 13D/A Report for ImageneBio, Inc. COMMON STOCK (IMA)

Ownership signal CIK-linked ownership evidence from parsed SEC filings. 2 signals
Large-stake signal

Form

SCHEDULE 13D/A

Active or control-oriented beneficial ownership filing.

Ownership

13%

Beneficial ownership of this reported class.

Shares

1,495,045 shares

Shares beneficially owned as disclosed.

Event date

14 Apr 2026

Date tied to the ownership event or amendment.

Accepted by SEC

29 Apr 2026

EDGAR acceptance date.

How to read this large-stake filing
  • Schedule 13D/G filings focus on beneficial ownership stakes, not a full portfolio.
  • Compare this filing with the holder history and issuer page before treating the percentage as a current position.
  • Use amendments to understand whether the disclosed stake increased, decreased, or changed reporting status.
Subject security Names, identifiers, and filing context for this profile. 2 source fields
Symbol
IMA
Shares outstanding
11,412,557 shares
Source evidence Original filing metadata and source links for verification. 4 source fields
SEC form
SCHEDULE 13D/A
Accepted by SEC
29 Apr 2026, 19:07:16 UTC
Event date
14 Apr 2026
Source filing
View source filing

Key filing fact

ORBIMED ADVISORS LLC disclosed 13% ownership in ImageneBio, Inc. COMMON STOCK (IMA) on 14 Apr 2026.

Key facts

  • ORBIMED ADVISORS LLC filed SCHEDULE 13D/A for ImageneBio, Inc. COMMON STOCK (IMA).
  • Disclosed ownership: 13%.
  • Date of event: 14 Apr 2026.

Change

  • No earlier schedule filing is available for direct comparison.
  • Current filing was accepted on 29 Apr 2026, 19:07.

Research use

  • This page turns one Schedule 13D/G filing into a quick large-stake read before the raw reporting-person rows.
  • Use the linked SEC filing as the source of truth for ownership percentages, shares, and reporting-party details.

Evidence

Backed by Schedule 13D/13G

Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.

View source filing

Reporting persons

Disclosed reporting parties (4)

Names, ownership percentages, voting power, signatures, titles, and CIKs as disclosed in this Schedule 13D/G filing.

Name Ownership Shares owned Sole voting power Shared voting power Signature Title CIK
ORBIMED ADVISORS LLC 13% 1,495,045 0 1,495,045 /s/ Carl L. Gordon Carl L. Gordon, Member 0001055951
ORBIMED CAPITAL GP VI LLC 9.6% 1,089,665 0 1,089,665 /s/ Carl L. Gordon Carl L. Gordon, Member of OrbiMed Advisors LLC 0001682115
OrbiMed Genesis GP LLC 3.6% 405,380 0 405,380 /s/ Carl L. Gordon Carl L. Gordon, Member of OrbiMed Advisors LLC 0001808744
ORBIMED CAPITAL LLC 1.2% 135,516 135,516 0 /s/ Carl L. Gordon Carl L. Gordon, Member 0001157524
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