Form 4 for IMRX Immuneering Corp

Accepted 2026-03-17 00:00:00 ET · period of report 2026-03-13 · accession 0001790340-26-000044 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X	Filed	Traded	Ticker	Insider	Title	Type	Price	Qty	Owned	ΔOwn	Value
	2026-03-17	2026-03-13	IMRX	Neufeld Leah R	CHRO	A - Grant	$4.29	+3,628	29.6K	+14%	+$15.6K

Purchase Sale Sale after option exercise All abbreviations

#	Table	Security	Date	Code	A/D	Shares	Price	Owned after	Own	Exercise / expiry	Underlying	Footnotes
1	Common	Class A Common Stock	2026-03-13	A	A	3,628	$4.29	29,598	D	—	—	(F1) The reporting person is voluntarily reporting the acquisition of shares of the issuer's Class A Common Stock pursuant to the Immuneering Corporation 2021 Employee Stock Purchase Plan (the "ESPP"), for the ESPP purchase period of September 16, 2025 through March 15, 2026. This transaction is also exempt pursuant to Rule 16b-3(c) promulgated pursuant to the Securities Exchange Act of 1934. (F2) The relevant Offering Period (as defined in the ESPP) ended on March 15, 2026. The shares were acquired on the Purchase Date (as defined in the ESPP) of March 13, 2026. (F3) In accordance with the ESPP, the shares were purchased at a price not less than eighty-five percent (85%) of the Fair Market Value (as defined in the ESPP) of a share of Class A Common Stock on the Purchase Date of the relevant Offering Period.