<SEC-DOCUMENT>0001013594-23-000638-index.html : 20230808 <SEC-HEADER>0001013594-23-000638.hdr.sgml : 20230808 <ACCEPTANCE-DATETIME>20230808091635 ACCESSION NUMBER: 0001013594-23-000638 CONFORMED SUBMISSION TYPE: SC 13D/A PUBLIC DOCUMENT COUNT: 2 FILED AS OF DATE: 20230808 DATE AS OF CHANGE: 20230808 SUBJECT COMPANY: COMPANY DATA: COMPANY CONFORMED NAME: POTBELLY CORP CENTRAL INDEX KEY: 0001195734 STANDARD INDUSTRIAL CLASSIFICATION: RETAIL-EATING PLACES [5812] IRS NUMBER: 364466837 FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: SC 13D/A SEC ACT: 1934 Act SEC FILE NUMBER: 005-87909 FILM NUMBER: 231149581 BUSINESS ADDRESS: STREET 1: 111 N. CANAL STREET 2: SUITE 325 CITY: CHICAGO STATE: IL ZIP: 60606 BUSINESS PHONE: 3129510600 MAIL ADDRESS: STREET 1: 111 N. CANAL STREET 2: SUITE 325 CITY: CHICAGO STATE: IL ZIP: 60606 FILED BY: COMPANY DATA: COMPANY CONFORMED NAME: Nierenberg Investment Management Company, Inc. CENTRAL INDEX KEY: 0001282683 IRS NUMBER: 911677205 STATE OF INCORPORATION: WA FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: SC 13D/A BUSINESS ADDRESS: STREET 1: 19605 NE 8TH ST CITY: CAMAS STATE: WA ZIP: 98607 BUSINESS PHONE: 360-604-8600 MAIL ADDRESS: STREET 1: 19605 NE 8TH ST CITY: CAMAS STATE: WA ZIP: 98607 FORMER COMPANY: FORMER CONFORMED NAME: NIERENBERG INVESTMENT MANAGEMENT CO DATE OF NAME CHANGE: 20040304 </SEC-HEADER> <DOCUMENT> <TYPE>SC 13D/A <SEQUENCE>1 <FILENAME>potbelly13da1-08082023.htm <TEXT> Document 1 - file: potbelly13da1-08082023.htm
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>2 <FILENAME>image0.jpg <TEXT> Document 2 - file: image0.jpg
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