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
Next filing
17 Feb 2026

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