<SEC-DOCUMENT>0000921895-21-000977-index.html : 20210406 <SEC-HEADER>0000921895-21-000977.hdr.sgml : 20210406 <ACCEPTANCE-DATETIME>20210406095704 ACCESSION NUMBER: 0000921895-21-000977 CONFORMED SUBMISSION TYPE: SC 13D/A PUBLIC DOCUMENT COUNT: 2 FILED AS OF DATE: 20210406 DATE AS OF CHANGE: 20210406 SUBJECT COMPANY: COMPANY DATA: COMPANY CONFORMED NAME: IKONICS CORP CENTRAL INDEX KEY: 0001083301 STANDARD INDUSTRIAL CLASSIFICATION: PHOTOGRAPHIC EQUIPMENT & SUPPLIES [3861] IRS NUMBER: 410730027 FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: SC 13D/A SEC ACT: 1934 Act SEC FILE NUMBER: 005-58319 FILM NUMBER: 21808313 BUSINESS ADDRESS: STREET 1: 4832 GRAND AVENUE CITY: DULUTH STATE: MN ZIP: 55807 BUSINESS PHONE: 2186282217 MAIL ADDRESS: STREET 1: 4832 GRAND AVENUE CITY: DULUTH STATE: MN ZIP: 55807 FORMER COMPANY: FORMER CONFORMED NAME: CHROMALINE CORP DATE OF NAME CHANGE: 19990405 FILED BY: COMPANY DATA: COMPANY CONFORMED NAME: Activist Investing LLC CENTRAL INDEX KEY: 0001817604 IRS NUMBER: 833953038 STATE OF INCORPORATION: NY FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: SC 13D/A BUSINESS ADDRESS: STREET 1: 1185 AVENUE OF THE AMERICAS, 3RD FLOOR. CITY: NEW YORK STATE: NY ZIP: 10036 BUSINESS PHONE: 646 768 8417 MAIL ADDRESS: STREET 1: 1185 AVENUE OF THE AMERICAS, 3RD FLOOR. CITY: NEW YORK STATE: NY ZIP: 10036 </SEC-HEADER> <DOCUMENT> <TYPE>SC 13D/A <SEQUENCE>1 <FILENAME>sc13da112227004_04062021.htm <DESCRIPTION>AMENDMENT NO. 1 TO THE SCHEDULE 13D <TEXT> Document 1 - file: sc13da112227004_04062021.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-99.1 <SEQUENCE>2 <FILENAME>ex991to13da112227004_040621.htm <DESCRIPTION>JOINT FILING AGREEMENT <TEXT> Document 2 - file: ex991to13da112227004_040621.htm
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