Filing Manager
CVI Investments, Inc.
Reporting Manager
CVI Investments, Inc.
Symbol
SIDU
Shares outstanding
54,054,054 shares
Disclosed Ownership
4,000,000 shares
Ownership
7.4%
Form type
SCHEDULE 13G
Filing time
31 Dec 2025, 12:11:04 UTC
Date of event
22 Dec 2025

Reporting Managers (2)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
CVI Investments, Inc. 7.4% 4,000,000 0 4,000,000 /s/ Sarah Travis Sarah Travis, Assistant General Counsel and Assistant Secretary of Heights Capital Management, Inc.
Heights Capital Management, Inc. 7.4% 4,000,000 0 4,000,000 /s/ Sarah Travis Sarah Travis, Assistant General Counsel and Assistant Secretary