Alumis Inc. (ALMS) CEO granted stock options on 745,875 shares

Rhea-AI Filing Summary

Alumis Inc. reported that President, CEO and Chairman Martin Babler received a new stock option grant. On January 26, 2026, he was awarded an option to buy 745,875 shares of Alumis common stock at an exercise price of $26.31 per share, expiring January 25, 2036.

According to the vesting terms, 25% of the shares underlying this option vest on January 26, 2027. The remaining shares then vest in equal monthly installments over the following 36 months, contingent on his continuous service to Alumis and subject to possible acceleration under the company’s 2024 Equity Incentive Plan.

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

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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).

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^*

Babler Martin

(Last) (First) (Middle)

C/O ALUMIS INC.

280 EAST GRAND AVENUE

(Street)

SOUTH SAN FRANCISCO CA 94080

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
ALUMIS INC. [ ALMS ]

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

X	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	President, CEO and Chairman

3. Date of Earliest Transaction (Month/Day/Year)
01/26/2026

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

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
Stock Option (Right to Buy)	$26.31	01/26/2026		A		745,875		(1)	01/25/2036	Common Stock	745,875	$0	745,875	D

Explanation of Responses:

1. 25% of the shares underlying this option vest on January 26, 2027, and the remaining shares vest in equal monthly installments thereafter over the following 36 months, subject to acceleration and the Reporting Person's Continuous Service (as defined in the Issuer's 2024 Equity Incentive Plan) to the Issuer on each such vesting date.

	/s/ Sanam Pangali, Attorney-in-Fact	01/28/2026
	** 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 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 insider transaction did Alumis Inc. (ALMS) report for Martin Babler?

Alumis Inc. reported that President, CEO and Chairman Martin Babler received a stock option grant for 745,875 shares. The option was granted on January 26, 2026, giving him the right to buy Alumis common stock at a fixed exercise price of $26.31 per share.

What are the key terms of Martin Babler’s new Alumis (ALMS) stock option?

The stock option covers 745,875 shares of Alumis common stock at an exercise price of $26.31 per share. It was granted on January 26, 2026 and expires on January 25, 2036, providing a long-dated right to purchase shares if vesting and service conditions are met.

How do Martin Babler’s Alumis (ALMS) stock options vest over time?

Twenty‑five percent of the shares underlying Martin Babler’s Alumis option vest on January 26, 2027. The remaining shares vest in equal monthly installments over the next 36 months, conditioned on his continuous service to the company and subject to possible acceleration under the 2024 Equity Incentive Plan.

How many Alumis (ALMS) derivative securities does Martin Babler hold after this Form 4?

After the reported transaction, Martin Babler beneficially owns 745,875 derivative securities in the form of a stock option. These options relate to 745,875 shares of Alumis common stock and are held as a direct ownership position according to the filing’s ownership table.

What is the expiration date of Martin Babler’s Alumis (ALMS) stock option grant?

Martin Babler’s newly granted Alumis stock option expires on January 25, 2036. If the option is not exercised before that expiration date, his right to purchase the 745,875 underlying shares at the $26.31 exercise price will lapse according to the disclosed terms.

What conditions affect vesting of Martin Babler’s Alumis (ALMS) option?

Vesting of Martin Babler’s option depends on his continuous service to Alumis. The filing states vesting is subject to his Continuous Service, as defined in the Alumis 2024 Equity Incentive Plan, and that the award is also subject to potential acceleration under that plan’s provisions.