Filing Manager
CVI Investments, Inc.
Reporting Manager
CVI Investments, Inc.
Symbol
ATOM
Shares outstanding
36,206,897 shares
Disclosed Ownership
2,100,000 shares
Ownership
5.8%
Form type
SCHEDULE 13G
Filing time
02 Mar 2026, 10:09:00 UTC
Date of event
23 Feb 2026

Reporting Managers (2)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
CVI Investments, Inc. 5.8% 2,100,000 0 2,100,000 /s/ Sarah Travis Sarah Travis, Assistant General Counsel and Assistant Secretary of Heights Capital Management, Inc.
Heights Capital Management, Inc. 5.8% 2,100,000 0 2,100,000 /s/ Sarah Travis Sarah Travis, Assistant General Counsel and Assistant Secretary