KOHNEN CHARLES

13D and 13G Filings

13D/G filings
13D on 1 security
CIK
0001479348
All SEC filings
View on sec.gov
Issuer % of Class Filed
SCI Engineered Materials, Inc. 13D
SCIA · 78402S108
8.1% 2/19/2026
Event 2/19/2026
SCI Engineered Materials, Inc. 13G/A Amendment 5
SCIA · 78402S108
7.8% 2/18/2025
Event 12/31/2024

Includes filings since 12/18/2024, when the SEC began requiring structured 13D and 13G data.