MAIRS & POWER INC

13D and 13G Filings

Investors who own more than 5% of a class must file a Schedule 13D or 13G. Every filing since 12/18/2024, newest first.

Issuer % of Class Filed
Tennant Company 13G/A Amendment 9
TNC · 880345103
4.4% 5/13/2026
Event 3/31/2026
Tennant Co 13G/A Amendment 8
TNC · 880345103
5.9% 2/17/2026
Event 12/31/2025
Tennant Company 13G/A Amendment 7
TNC · 880345103
7.6% 5/15/2025
Event 3/31/2025
Clearfield, Inc. 13G
CLFD · 18482P103
6.0% 5/15/2025
Event 3/31/2025