Reporting Manager
Casey M. Tansey
Symbol
SI
Shares outstanding
20,607,421 shares
Disclosed Ownership
2,740,787 shares
Ownership
13.3%
Form type
SCHEDULE 13G
Filing time
14 Nov 2025, 16:14:27 UTC
Date of event
30 Sep 2025

Reporting Managers (3)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
U.S. Venture Partners XII, L.P. 8.2% 1,686,403 0 1,686,403 /s/ Dale Holladay Dale Holladay, Attorney-in-Fact
Presidio Management Group XII, L.L.C. 13.1% 2,693,121 0 2,693,121 /s/ Dale Holladay Dale Holladay, Attorney-in-Fact
Casey M. Tansey 13.3% 2,740,787 47,666 2,693,121 /s/ Dale Holladay Dale Holladay, Attorney-in-Fact