SIMONSON GERALD W
Related Filers (1)
Ownership (30)
SC 13G/A
Thursday, 2/14/2019
IKONICS CORP: Major Shareholders
SC 13G/A
Tuesday, 2/20/2018
IKONICS CORP: Major Shareholders
SC 13G/A
Monday, 2/13/2017
IKONICS CORP: Major Shareholders
4
Friday, 9/2/2016
IKONICS CORP: Statement of changes in beneficial ownership of securities
4
Monday, 6/27/2016
IKONICS CORP: Statement of changes in beneficial ownership of securities
SC 13G/A
Friday, 2/12/2016
IKONICS CORP: Major Shareholders
4
Monday, 12/21/2015
IKONICS CORP: Statement of changes in beneficial ownership of securities
4
Friday, 8/14/2015
IKONICS CORP: Statement of changes in beneficial ownership of securities
SC 13G/A
Tuesday, 2/3/2015
IKONICS CORP: Major Shareholders
4
Monday, 9/22/2014
IKONICS CORP: Statement of changes in beneficial ownership of securities
SC 13G/A
Thursday, 2/13/2014
IKONICS CORP: Major Shareholders
4
Tuesday, 6/4/2013
IKONICS CORP: Statement of changes in beneficial ownership of securities
SC 13G/A
Wednesday, 2/13/2013
IKONICS CORP: Major Shareholders
4
Monday, 12/3/2012
IKONICS CORP: Statement of changes in beneficial ownership of securities
SC 13G/A
Friday, 2/12/2010
IKONICS CORP: Major Shareholders
4
Wednesday, 2/25/2009
IKONICS CORP: Statement of changes in beneficial ownership of securities
SC 13G/A
Friday, 2/13/2009
IKONICS CORP: Major Shareholders
4
Wednesday, 9/17/2008
IKONICS CORP: Statement of changes in beneficial ownership of securities
4
Wednesday, 6/4/2008
IKONICS CORP: Statement of changes in beneficial ownership of securities
4
Wednesday, 4/30/2008
IKONICS CORP: Statement of changes in beneficial ownership of securities
4
Thursday, 4/17/2008
IKONICS CORP: Statement of changes in beneficial ownership of securities
SC 13G/A
Thursday, 2/14/2008
IKONICS CORP: Major Shareholders
4
Monday, 6/4/2007
IKONICS CORP: Statement of changes in beneficial ownership of securities
SC 13G/A
Wednesday, 2/14/2007
IKONICS CORP: Major Shareholders
4
Wednesday, 4/26/2006
IKONICS CORP: Statement of changes in beneficial ownership of securities
SC 13G/A
Tuesday, 2/14/2006
IKONICS CORP: Major Shareholders
4
Tuesday, 2/15/2005
IKONICS CORP: Statement of changes in beneficial ownership of securities
SC 13G/A
Tuesday, 2/17/2004
IKONICS CORP: Major Shareholders
SC 13G/A
Wednesday, 2/12/2003
IKONICS CORP: Major Shareholders
SC 13G
Monday, 4/1/2002
CHROMALINE CORP: Major Shareholders