STOCK TITAN

Immuneering (IMRX) awards CFO Andrew Gengos 650,000 stock options

(Neutral)
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Immuneering Corp granted Chief Financial Officer Andrew Gengos stock options covering 650,000 shares of Class A Common Stock at an exercise price of $4.78 per share, expiring July 16, 2036. The options vest monthly over four years under a detailed, step-up vesting schedule tied to continued employment.

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Insider Gengos Andrew
Role Chief Financial Officer
Type Security Shares Price Value
Grant/Award Stock Option 650,000 $0.00 --
Holdings After Transaction: Stock Option — 650,000 shares (Direct)
Footnotes (1)
  1. [object Object]
Stock options granted 650,000 shares Stock option grant to CFO Andrew Gengos on 2026-07-16
Exercise price $4.78 per share Exercise price of the granted stock options
Expiration date July 16, 2036 Expiration of CFO stock option grant
Underlying shares 650,000 shares Class A Common Stock underlying the stock option grant
Post-grant derivative holdings 650,000 options Total stock options held after the reported grant
Stock Option financial
"Stock Option covering 650,000 shares granted to the CFO"
A stock option is a contract that gives you the right to buy or sell a company's stock at a specific price within a certain time frame. People use them to potentially make money if the stock's price moves favorably or to protect against losses. It's like holding a coupon that can be used to buy or sell stock at a set price later on.
exercise price financial
"stock option at an exercise price of $4.78 per share"
The exercise price is the fixed amount at which you can buy or sell an asset, like a stock, when using an options contract. It matters because it helps determine whether exercising the option will be profitable or not, depending on the current market price. Think of it as the set price you agree on today to buy or sell later.
vesting financial
"shares underlying the stock option shall vest on each monthly anniversary"
Vesting is the process by which you earn full ownership of something, like company stock or a retirement benefit, over time. It’s like earning the right to keep a gift piece by piece the longer you stay with a company, making sure employees stay committed before they receive all the benefits.
Class A Common Stock financial
"underlying security title listed as Class A Common Stock"
Class A common stock is a category of a company’s shares that carries a specific set of ownership rights—most commonly defined voting power and claims on dividends—set out in the company’s charter. For investors it matters because the class determines how much influence you have over corporate decisions, the share’s likely dividend and trading behavior, and how it compares in value to other share classes, like choosing a particular seat with different privileges at the company’s decision-making table.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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FAQ

What insider transaction did Immuneering (IMRX) report for its CFO?

Immuneering granted its CFO, Andrew Gengos, a stock option covering 650,000 shares of Class A Common Stock. The option has a multi-year monthly vesting schedule and provides equity-based compensation rather than an immediate cash transaction.

How many stock options were granted to Immuneering (IMRX) CFO Andrew Gengos?

Andrew Gengos received a stock option for 650,000 shares of Class A Common Stock. All 650,000 shares remain subject to vesting conditions tied to his continued employment and will vest in stages over a four-year period.

What is the exercise price and underlying stock for the IMRX CFO options grant?

The granted stock option allows purchase of Class A Common Stock at an exercise price of $4.78 per share. The option covers 650,000 underlying shares and gives potential future ownership if exercised once the relevant portions have vested.

How do the 650,000 Immuneering (IMRX) stock options for the CFO vest?

The option vests monthly over four years. Early vesting tranches are 8.33333% for each of the first three months, followed by 1.6667%, then 3.33333%, then 0.833333% monthly, so all shares vest by the fourth anniversary of the grant date.

When do the Immuneering (IMRX) CFO stock options expire?

The stock option granted to CFO Andrew Gengos expires on July 16, 2036. After that expiration date, any unexercised portion of the 650,000-share option will lapse and can no longer be used to purchase Class A Common Stock.

Were the Immuneering (IMRX) CFO options granted under a Rule 10b5-1 trading plan?

The report indicates the transaction was not designated as made under a Rule 10b5-1 trading plan. This entry reflects a compensation-related stock option grant rather than pre-arranged open-market buying or selling activity under such a plan.
SEC Form 4
FORM 4UNITED 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
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
Gengos Andrew

(Last)(First)(Middle)
245 MAIN STREET
SECOND FLOOR

(Street)
CAMBRIDGE MASSACHUSETTS 02142

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
Immuneering Corp [ IMRX ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director10% Owner
XOfficer (give title below)Other (specify below)
Chief Financial Officer
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
07/16/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

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)
CodeVAmount(A) or (D)Price
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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Stock Option$4.7807/16/2026A650,000 (1)07/16/2036Class A Common Stock650,000$0650,000D
Explanation of Responses:
1. Subject to the reporting person's continued employment through each applicable vesting date, 8.33333% of the shares underlying the stock option shall vest on each of the first, second and third monthly anniversary of the grant transaction date (the "Grant Date"); 1.6667% of the shares underlying the stock option shall vest on the fourth monthly anniversary of the Grant Date and on each monthly anniversary thereafter until the one year anniversary of the Grant Date; 3.33333% of the shares underlying the stock option shall vest on each monthly anniversary following the one-year anniversary of the Grant Date until the second anniversary of the Grant Date; and 0.833333% of the of the shares underlying the stock option shall vest on each monthly anniversary following the second anniversary of the Grant Date until the fourth anniversary of the Grant Date, such that all shares underlying the stock option shall be fully vested on the fourth anniversary of the Grant Date.
Remarks:
/s/ Michael D. Bookman, Attorney-in-Fact for Andrew Gengos07/17/2026
** Signature of Reporting PersonDate
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.
* Form 4: SEC 1474 (03-26)