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SC 13D/A

Beneficial Ownership Report

ClearSign Technologies Corp Filed 2015-03-25 Acc 0001144204-15-018428

Documents 1

SC 13D/A Beneficial Ownership Report , v405566_sc13da.htm

Around this filing

2016-06-01 SC 13D/A Beneficial Ownership Report
2015-04-01 DEFR14A DEFR14A
2015-03-31 DEF 14A Proxy Statement
2015-03-26 4 See Remarks bought 3,000 shares at $4.96 ($14,866)
2015-03-25 SC 13D/A Beneficial Ownership Report
2015-03-19 4 Sr VP - Product Development bought 8,100 shares at an average $5.86 ($47,446)
2013-02-25 SC 13D/A Beneficial Ownership Report

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