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ClearSign Technologies Corp (CLIR) Create: Alert

All | News | Filings
Date FiledTypeDescription
07/15/2022 SC 13D/A clirSPV LLC reports a 19.9% stake in ClearSign Technologies Corporation
10/07/2020 SC 13D/A Form SC 13D/A - General statement of acquisition of beneficial ownership: [Amend]
03/07/2018 SC 13D/A Form SC 13D/A - General statement of acquisition of beneficial ownership: [Amend]
03/14/2017 SC 13D/A Form SC 13D/A - General statement of acquisition of beneficial ownership: [Amend]
03/08/2017 SC 13D/A Form SC 13D/A - General statement of acquisition of beneficial ownership [Amend]
02/25/2013 SC 13D/A Form SC 13D - General statement of acquisition of beneficial ownership [amend]
06/26/2012 SC 13D/A Form SC 13D - General statement of acquisition of beneficial ownership [amend]
06/26/2012 SC 13D/A Form SC 13D - General statement of acquisition of beneficial ownership [amend]

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