ACK Asset Management LLC

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
Clearfield, Inc. 13G
CLFD · 18482P103
5.1% 4/15/2026
Event 2/20/2026
Astronics Corp 13G/A Amendment 2
ATRO · 046433108
4.0% 11/18/2025
Event 9/30/2025
Clearfield, Inc. 13G/A Amendment 1
CLFD · 18482P103
4.9% 5/13/2025
Event 3/31/2025
Clearfield, Inc 13G
CLFD · 18482P103
5.0% 2/14/2025
Event 12/31/2024