ACK Asset Management filings

This page lists the SEC filings reported by ACK Asset Management.

SEC filings by ACK Asset Management (ownership)
TypeFiledFilerSubjectShares OwnedPercent Owned
SC 13G2023-02-17ACK Asset Management LLCALLIED MOTION TECHNOLOGIES INC807,4005.1%EDGAR
SC 13G2022-02-14ACK Asset Management LLCLUNA INNOVATIONS INC1,832,6475.7%EDGAR
SC 13G/A2020-02-12ACK Asset Management LLCTRANSCAT INC419,7005.7%EDGAR
SC 13G2020-02-12ACK Asset Management LLCConcrete Pumping Holdings, Inc.5,105,7158.8%EDGAR
SC 13G/A2019-04-01ACK Asset Management LLCASTRONICS CORP1,180,0004.8%EDGAR
SC 13G2019-02-12ACK Asset Management LLCASTRONICS CORP1,180,0005.4%EDGAR
SC 13G2019-02-12ACK Asset Management LLCTRANSCAT INC385,0005.3%EDGAR
SC 13G2014-02-19ACK Asset Management LLCCambridge Capital Acquisition Corp587,0216.2%EDGAR
Form 13F-HR
The 13F-HR report is filed quarterly to report securities held by the filer that fall under the SEC's 13F rules.
Form SC 13D/G
Reported by persons and groups who own 5% or more of any class of a company's outstanding shares. If the ownership changes by 1% or more, an amendment must be filed.
Form 3, 4, and 5
Form 3, 4, and 5 reports are filed to report insider transactions by company officers and directors, and any beneficial owners of more than ten percent of a company's shares. Form 3 is the initial report that must be filed when a person becomes an officer, director, or beneficial owner. Form 4 reports are used to report changes in ownership, while the Form 5 report is used for reporting transactions that should have been reported earlier in a Form 4 filing.