[Form 4] Immuneering Corp Insider Trading Activity

Rhea-AI Filing Summary

Insider transaction reported for Immuneering Corp (IMRX). Leah R. Neufeld, listed as Chief People Officer and reporting person, purchased 800 shares of Class A common stock on 10/01/2025 at a price of $6.3792 per share. After the purchase, the filing reports 23,344 shares beneficially owned. The Form 4 was signed on behalf of Ms. Neufeld by an attorney-in-fact and dated 10/02/2025.

Insights

Securities Analyst

TL;DR: Officer purchase of 800 shares at $6.3792 increases insider holdings to 23,344 shares — modest, routine disclosure.

The transaction is a non-derivative purchase by an officer rather than a sale or option exercise, signaling a straightforward acquisition of common stock. The size (800 shares) and resulting total ownership (23,344 shares) are not large enough on their face to imply a material shift in control or a major change in insider exposure. This Form 4 provides clear, routine compliance reporting required under Section 16.

Corporate Governance Expert

TL;DR: Routine insider buy reported and properly executed via attorney-in-fact signature; no governance red flags visible.

The filing identifies the reporting person as an officer (Chief People Officer) and documents purchase details including date, price, and post-transaction ownership. The signature by an attorney-in-fact is disclosed with a date, satisfying signature formalities. There are no indications of related-party transactions, amendments, or contingent arrangements in the text provided.

SEC Form 4

FORM 4

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

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

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

OMB APPROVAL

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person^*

Neufeld Leah R

(Last) (First) (Middle)

245 MAIN STREET

SECOND FLOOR

(Street)

CAMBRIDGE MA 02142

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Immuneering Corp [ IMRX ]

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	CHIEF PEOPLE OFFICER

3. Date of Earliest Transaction (Month/Day/Year)
10/01/2025

4. 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 Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Class A Common Stock	10/01/2025		P		800	A	$6.3792	23,344	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

Remarks:

	/s/ Michael D. Bookman, Attorney-in-Fact for Leah R. Neufeld	10/02/2025
	** 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 4 (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.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What transaction did Leah R. Neufeld report on the Form 4 for IMRX?

The Form 4 reports a purchase of 800 shares of Class A common stock on 10/01/2025 at a price of $6.3792 per share.

How many IMRX shares does the reporting person own after the transaction?

The filing shows 23,344 shares beneficially owned following the reported purchase.

What is Leah R. Neufeld's role at the issuer according to the Form 4?

The Form 4 lists Leah R. Neufeld as an officer with the title Chief People Officer.

When was the Form 4 signed and who signed it?

The signature block shows the form was signed by Michael D. Bookman, Attorney-in-Fact for Leah R. Neufeld on 10/02/2025.

Was this a derivative transaction or a non-derivative transaction?

This was a non-derivative transaction (purchase of Class A common stock); no derivative securities are reported.