Nierenberg Investment Management Company, LLC - 14 Mar 2025 SCHEDULE 13D/A Report for Potbelly Corp. Common Stock, par value $0.01 (PBPB)

Filing Manager
Nierenberg Investment Management Company, LLC
Reporting Manager
David Nierenberg
Security
Potbelly Corp. Common Stock, par value $0.01
Symbol
PBPB
Shares outstanding
29,973,806 shares
Disclosed Ownership
3,087,302 shares
Ownership
10%
Form type
SCHEDULE 13D/A
Filing time
17 Mar 2025, 16:14:09 UTC
Date of event
14 Mar 2025
SEC
View on sec.gov

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Quoteable Key Fact

"Nierenberg Investment Management Company, LLC disclosed 10% ownership in Potbelly Corp. Common Stock, par value $0.01 (PBPB) on 14 Mar 2025."

Quick Takeaways

  • Nierenberg Investment Management Company, LLC filed SCHEDULE 13D/A for Potbelly Corp. Common Stock, par value $0.01 (PBPB).
  • Disclosed ownership: 10%.
  • Date of event: 14 Mar 2025.

What Changed

  • No earlier schedule filing is available for direct comparison.
  • Current filing was accepted on 17 Mar 2025, 16:14.

Why This Matters

  • This page explains what this Schedule 13D/13G filing tells you before manager-level rows.
  • You can verify ownership claims directly against the original SEC filing.

Source Evidence

Backed by Schedule 13D/13G

Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.

See Original Filing

Reporting Managers (6)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
D3 Family Fund, LP 3% 887,555 0 887,555 Nierenberg Investment Management Company, Inc. /s/David Nierenberg, President 0001282685
D3 Family Bulldog Fund, LP 5.2% 1,561,985 0 1,561,985 /s/ David Nierenberg D3 Family Bulldog Fund, LP 0001365745
Benedict Value Fund, L.P. 1.4% 425,555 0 425,555 Nierenberg Investment Management Company, Inc., it's General Partner /s/David Nierenberg, President
Haredale Ltd. 0.3% 105,469 105,469 0 /s/ David Nierenberg David Nierenberg, President
Nierenberg Investment Management Company, Inc. 10% 2,980,564 0 2,980,564 /s/ David Nierenberg David Nierenberg, President 0001282683
David Nierenberg 10% 3,087,302 101,998 2,985,304 /s/ David Nierenberg David Nierenberg, President 0001040899

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