PERCEPTIVE ADVISORS LLC - 31 Dec 2025 SCHEDULE 13G/A Report for Alto Neuroscience, Inc. Common Stock, $0.0001 par value per share (ANRO)

Filing Manager
PERCEPTIVE ADVISORS LLC
Reporting Manager
Perceptive Advisors LLC
Security
Alto Neuroscience, Inc. Common Stock, $0.0001 par value per share
Symbol
ANRO
Shares outstanding
32,531,872 shares
Disclosed Ownership
3,249,934 shares
Ownership
10%
Form type
SCHEDULE 13G/A
Filing time
17 Feb 2026, 16:00:03 UTC
Date of event
31 Dec 2025
Previous filing
10 Oct 2025
SEC
View on sec.gov

Reporting Managers (3)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
Perceptive Advisors LLC 10% 3,249,934 0 3,249,934 /s/ Joseph Edelman Joseph Edelman, Managing Member
Joseph Edelman 10% 3,249,934 0 3,249,934 /s/ Joseph Edelman Joseph Edelman
Perceptive Life Sciences Master Fund, Ltd. 10% 3,249,934 0 3,249,934 /s/ Joseph Edelman Joseph Edelman, Managing Member