ORBIMED ADVISORS LLC - 14 Apr 2026 Form 4 Insider Report for ImageneBio, Inc. (IMA)

Source evidence Original filing metadata and source links for verification. 5 source fields
SEC form
4
Accepted by SEC
16 Apr 2026, 19:23:53 UTC
Prior SEC filing
09 Apr 2026
Next SEC filing
28 Apr 2026
Source filing
View source filing
Reporting owner 1 detail
Reporting owner signature
/s/ Carl L. Gordon, Member of OrbiMed Advisors LLC

Key filing fact

ORBIMED ADVISORS LLC filed Form 4 for ImageneBio, Inc. (IMA) on 16 Apr 2026.

Key facts

  • This page summarizes ORBIMED ADVISORS LLC's Form 4 filing for ImageneBio, Inc. (IMA).
  • 2 reported transactions and 6 derivative rows are listed below.
  • Accepted by SEC: 16 Apr 2026, 19:23.

Change

  • Previous filing in this sequence was filed on 09 Apr 2026.
  • Current net transaction value: $0.

Research use

  • This tells you what this filing adds before you inspect full transaction and derivative tables.
  • You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (3)

CIK 0001055951 Primary reporting owner

ORBIMED ADVISORS LLC

Relationship
Director
Address
601 LEXINGTON AVENUE, 54TH FLOOR, NEW YORK
Signature
/s/ Carl L. Gordon, Member of OrbiMed Advisors LLC
Signature date
16 Apr 2026
CIK 0001682115

OrbiMed Capital GP VI LLC

Relationship
Director
Address
601 LEXINGTON AVENUE, 54TH FLOOR, NEW YORK
Signature
/s/ Carl L. Gordon, Member of OrbiMed Capital GP VI LLC
Signature date
16 Apr 2026
CIK 0001808744

OrbiMed Genesis GP LLC

Relationship
Director
Address
601 LEXINGTON AVENUE, 54TH FLOOR, NEW YORK
Signature
/s/ Carl L. Gordon, Member of OrbiMed Genesis GP LLC
Signature date
16 Apr 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

IMA holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
753,062
Date
14 Apr 2026
Ownership
See Footnote
Footnotes
F3, F5
IMA holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
753,062
Date
14 Apr 2026
Ownership
See Footnote
Footnotes
F3, F5
IMA holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
753,062
Date
14 Apr 2026
Ownership
See Footnote
Footnotes
F3, F5
IMA holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
20,691
Date
14 Apr 2026
Ownership
See Footnote
Footnotes
F4, F5
IMA holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
20,691
Date
14 Apr 2026
Ownership
See Footnote
Footnotes
F4, F5
IMA holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
20,691
Date
14 Apr 2026
Ownership
See Footnote
Footnotes
F4, F5

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

IMA transaction Derivative

Pre-Funded Warrants (right to buy)

Purchase

Transaction value
Shares
+336,603
Change %
Price
Shares after
336,603
Date
14 Apr 2026
Ownership
See Footnote
Underlying class
Common Stock
Underlying amount
336,603
Exercise price
$0.001000
Footnotes
F1, F2, F3, F5
IMA transaction Derivative

Pre-Funded Warrants (right to buy)

Purchase

Transaction value
Shares
+336,603
Change %
Price
Shares after
336,603
Date
14 Apr 2026
Ownership
See Footnote
Underlying class
Common Stock
Underlying amount
336,603
Exercise price
$0.001000
Footnotes
F1, F2, F3, F5
IMA transaction Derivative

Pre-Funded Warrants (right to buy)

Purchase

Transaction value
Shares
+336,603
Change %
Price
Shares after
336,603
Date
14 Apr 2026
Ownership
See Footnote
Underlying class
Common Stock
Underlying amount
336,603
Exercise price
$0.001000
Footnotes
F1, F2, F3, F5
IMA transaction Derivative

Pre-Funded Warrants (right to buy)

Purchase

Transaction value
Shares
+384,689
Change %
Price
Shares after
384,689
Date
14 Apr 2026
Ownership
See Footnote
Underlying class
Common Stock
Underlying amount
384,689
Exercise price
$0.001000
Footnotes
F1, F2, F4, F5
IMA transaction Derivative

Pre-Funded Warrants (right to buy)

Purchase

Transaction value
Shares
+384,689
Change %
Price
Shares after
384,689
Date
14 Apr 2026
Ownership
See Footnote
Underlying class
Common Stock
Underlying amount
384,689
Exercise price
$0.001000
Footnotes
F1, F2, F4, F5
IMA transaction Derivative

Pre-Funded Warrants (right to buy)

Purchase

Transaction value
Shares
+384,689
Change %
Price
Shares after
384,689
Date
14 Apr 2026
Ownership
See Footnote
Underlying class
Common Stock
Underlying amount
384,689
Exercise price
$0.001000
Footnotes
F1, F2, F4, F5
* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 5 footnotes

Footnote F1

On April 12, 2026, the Issuer entered into a securities purchase agreement (the "Purchase Agreement") with certain institutional and accredited investors, including the Reporting Persons. Pursuant to the terms of the Purchase Agreement, the Issuer issued and sold to the Reporting Persons in a private placement which closed on April 14, 2026 (the "Closing Date") pre-funded warrants ("Pre-Funded Warrants") to purchase up to an aggregate of 721,292 Shares. The price per Pre-Funded Warrant is $5.199.

Footnote F2

The Pre-Funded Warrants are exercisable at any time after the date of issuance, subject to a 19.99% beneficial ownership blocker. The Pre-Funded Warrants will expire once exercised in full.

Footnote F3

These securities are held of record by OrbiMed Private Investments VI, LP ("OPI VI"). OrbiMed Capital GP VI LLC ("GP VI") is the general partner of OPI VI. OrbiMed Advisors LLC ("OrbiMed Advisors"), a registered investment adviser under the Investment Advisers Act of 1940, as amended, is the managing member of GP VI. By virtue of such relationships, GP VI and OrbiMed Advisors may be deemed to have voting and investment power with respect to the securities held by OPI VI. OrbiMed Advisors exercises this investment and voting power through a management committee comprised of Carl L. Gordon, Sven H. Borho, and W. Carter Neild, each of whom disclaims beneficial ownership of the shares held by OPI VI.

Footnote F4

These securities are held of record by OrbiMed Genesis Master Fund, L.P. ("Genesis Master Fund"). OrbiMed Genesis GP LLC ("Genesis GP") is the general partner of Genesis Master Fund. OrbiMed Advisors is the managing member of Genesis GP. By virtue of such relationships, Genesis GP and OrbiMed Advisors may be deemed to have voting and investment power with respect to the securities held by Genesis Master Fund. OrbiMed Advisors exercises voting and investment power through a management committee comprised of Carl L. Gordon, Sven H. Borho, and W. Carter Neild, each of whom disclaims beneficial ownership of the shares held by Genesis Master Fund.

Footnote F5

This report on Form 4 is jointly filed by OrbiMed Advisors, GP VI, and Genesis GP. Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Rule 16a-1(a) under the Securities Exchange Act of 1943, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein, if any. OrbiMed Advisors has designated a representative, David P. Bonita ("Bonita"), a member of OrbiMed Advisors, to serve on the Issuer's board of directors. This report shall not be deemed an admission that any of the Reporting Persons or Bonita is a beneficial owner of such securities for purposes of Section 16 of the Exchange Act, or for any other purpose.

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