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Form SC 13D/A CTS CORP Filed by: GAMCO INVESTORS, INC. ET AL Apr 3, 2023 04:03PM
Form SC 13D/A CTS CORP Filed by: GAMCO INVESTORS, INC. ET AL Mar 23, 2021 04:04PM
Form SC 13D/A CTS CORP Filed by: GAMCO INVESTORS, INC. ET AL Jun 2, 2020 10:38AM
Form SC 13D/A CTS CORP Filed by: GAMCO INVESTORS, INC. ET AL Apr 10, 2018 03:48PM
Form SC 13D/A CTS CORP Filed by: GAMCO INVESTORS, INC. ET AL Sep 3, 2015 04:01PM