X0508 4 2024-12-18 0001195734 POTBELLY CORP PBPB 0001040899 Nierenberg David 19605 NE 8TH STREET CAMAS WA 98607 true 0001282683 Nierenberg Investment Management Company, Inc. 19605 NE 8TH ST CAMAS WA 98607 true true Common Stock 2024-12-18 4 P 0 1590 9.4 A 1590 I By Children Common Stock 2024-12-18 4 P 0 3150 9.34 A 3150 I By Spouse This Form 4 is filed jointly by Nierenberg Investment Management Company, Inc. and David Nierenberg. Nierenberg Investment Management Company ("NIMCO") is the sole general partner of The D3 Family Fund, LP, The D3 Family Bulldog Fund, LP, and the Benedict Value Fund, LP and the sole investment manager of Haredale Ltd. (collectively, the "Funds"). Mr. Nierenberg is the president of NIMCO. By virtue of these relationships, each of the Reporting Persons may be deemed to beneficially own the securities owned directly by the Funds. Owned by children living in reporting person's household. Owned by spouse. Mr. Nierenberg disclaims beneficial ownership of the securities reported herein as beneficially owned directly by his spouse and son except to the extent of his pecuniary interest therein, and this report shall not be deemed to be an admission that Mr. Nierenberg is the beneficial owner of such securities for purposes of Section 16 or for any other purpose. Nierenberg Investment Management Company, Inc. By: /s/ David Nierenberg David Nierenberg, President 2024-12-20 /s/ David Nierenberg David Nierenberg 2024-12-20