ImageneBio (IMA) names Chief Medical Officer as insider in Form 3

Rhea-AI Filing Summary

ImageneBio, Inc. filed an initial insider ownership report for Benjamin Porter-Brown, who serves as Chief Medical Officer. This Form 3 does not list any share transactions or holdings, but formally registers his status as an officer subject to insider reporting rules.

SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person^*

Porter-Brown Benjamin

(Last) (First) (Middle)

C/O IMAGENEBIO, INC.

2526 HIGH BLUFF DRIVE

(Street)

SAN DIEGO CA 92130

(City) (State) (Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
02/16/2026

3. Issuer Name and Ticker or Trading Symbol
ImageneBio, Inc. [ IMA ]

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Medical Officer

5. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

Remarks:

Exhibit 24 - Power of Attorney.

No securities are beneficially owned.

	/s/ Erin Butler, Attorney-in-Fact	02/20/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
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FAQ

What does ImageneBio (IMA) disclose in this Form 3 filing?

ImageneBio reports that Benjamin Porter-Brown is a corporate insider serving as Chief Medical Officer. The Form 3 records his insider status but shows no reported stock transactions or specific share ownership details in this filing.

Who is the insider named in ImageneBio (IMA) Form 3?

The insider is Benjamin Porter-Brown, identified as an officer of ImageneBio with the title Chief Medical Officer. This establishes him as a reporting person under insider ownership and trading disclosure requirements.

Does the ImageneBio (IMA) Form 3 show any insider share transactions?

No share transactions are shown. The transaction summary in the Form 3 lists zero buys, zero sells, zero acquisitions, and zero dispositions, indicating only an initial insider status filing without trading activity.

Does Benjamin Porter-Brown report any ImageneBio (IMA) share ownership on this Form 3?

The Form 3 data provided does not list any specific share holdings for Benjamin Porter-Brown. The filing focuses on his role as Chief Medical Officer and his designation as a reporting person, with no holdings data in the excerpt.

Why is Form 3 important for ImageneBio (IMA) insiders like the Chief Medical Officer?

Form 3 identifies an individual as a reporting insider, such as ImageneBio’s Chief Medical Officer, Benjamin Porter-Brown. Once on record, future Forms 4 or 5 will disclose his reportable trades in the company’s securities, enhancing transparency.