Nicholas Conrad Smith - 01 Mar 2026 Form 4 Insider Report for Alto Neuroscience, Inc. (ANRO)

Role: CHIEF FINANCIAL OFFICER & CBO
Signature: /s/ Erin R. McQuade, Attorney-in-Fact
Issuer symbol: ANRO
Transactions as of: 01 Mar 2026
Net transactions value: -$55,250
Form type: 4
Filing time: 03 Mar 2026, 19:15:26 UTC
Previous filing: 13 Feb 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Smith Nicholas Conrad	CHIEF FINANCIAL OFFICER & CBO	C/O ALTO NEUROSCIENCE, INC., 650 CASTRO STREET, SUITE 450, MOUNTAIN VIEW	/s/ Erin R. McQuade, Attorney-in-Fact	03 Mar 2026	0002009130

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	ANRO	Common Stock	Tax liability	$55,250	-2,806	-10%	$19.69	24,060	01 Mar 2026	Direct	F1

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Represents shares of common stock withheld for payment of taxes upon vesting of restricted stock units previously reported in Table I and does not represent an open market transaction by the reporting person.