POTBELLY CORP - Common Stock, $0.01 par value (PBPB) Institutional Ownership

13F Institutional Holders and Ownership History from Q1 2014 to Q4 2025

Type / Class
Equity / Common Stock, $0.01 par value
Symbol
PBPB
Shares outstanding
30,228,719
Price per share
$17.12
All holders as of 30 Sep 2025
Q3 2025
Total 13F shares
25,854,478
Total reported value
$440,552,372
% of total 13F portfolios
0%
Share change
+2,449,535
Value change
+$77,704,976
Number of holders
131
Price from insider filings
$17.12
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of POTBELLY CORP - Common Stock, $0.01 par value (PBPB) based on Schedule 13D/G filings

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
Nierenberg Investment Management Company, Inc. 10% $24,976,273 3,087,302 David Nierenberg 14 Mar 2025
Portolan Capital Management, LLC 5.5% $14,542,361 1,667,702 Portolan Capital Management, LLC 20 Jun 2025
GLAZER CAPITAL, LLC 5.3% $20,096,415 1,605,145 Glazer Capital, LLC 22 Sep 2025
RENAISSANCE TECHNOLOGIES LLC 4% $9,722,999 1,201,854 Renaissance Technologies LLC 30 Sep 2024

As of 30 Sep 2025, 131 institutional investors reported holding 25,854,478 shares of POTBELLY CORP - Common Stock, $0.01 par value (PBPB). This represents 86% of the company’s total 30,228,719 outstanding shares.

Top 25 Institutional Shareholders

The largest institutional shareholders of POTBELLY CORP - Common Stock, $0.01 par value (PBPB) together control 71% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.

Institution Ownership % Shares Held Share Change % Portfolio % Holdings Value
Nierenberg Investment Management Company, Inc. 9.9% 2,980,564 0% 28% $50,788,811
BlackRock, Inc. 6.6% 2,009,653 +6.1% 0% $34,244,487
GLAZER CAPITAL, LLC 5.4% 1,631,301 0.93% $27,797,000
VANGUARD GROUP INC 4.8% 1,450,355 +1.9% 0% $24,714,050
WATER ISLAND CAPITAL LLC 4.5% 1,351,588 3.3% $23,031,060
FIL Ltd 4% 1,210,426 0.02% $20,625,659
Balyasny Asset Management L.P. 3.8% 1,150,782 0.04% $19,609,325
RENAISSANCE TECHNOLOGIES LLC 3.7% 1,112,954 -0.05% 0.03% $18,964,736
Versor Investments LP 3.5% 1,057,265 3.3% $18,015,796
First Trust Capital Management L.P. 2.8% 857,701 0.94% $14,615,225
AMERICAN CENTURY COMPANIES INC 2% 613,554 +30% 0.01% $10,454,960
GEODE CAPITAL MANAGEMENT, LLC 2% 612,785 +0.74% 0% $10,443,891
MONIMUS CAPITAL MANAGEMENT, LP 1.9% 582,325 -13% 7.4% $9,922,818
STATE STREET CORP 1.7% 526,332 +0.15% 0% $8,968,697
ALPINE ASSOCIATES MANAGEMENT INC. 1.7% 524,296 0.54% $8,934,004
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 1.6% 492,537 +10% 0.01% $8,392,830
GABELLI FUNDS LLC 1.5% 444,300 0.05% $7,570,872
DIMENSIONAL FUND ADVISORS LP 1.4% 429,743 -16% 0% $7,322,801
HEARTLAND ADVISORS INC 1.3% 400,000 -48% 0.36% $6,816,000
GABELLI & Co INVESTMENT ADVISERS, INC. 1.3% 386,200 1.1% $6,580,848
Qube Research & Technologies Ltd 1.2% 369,075 +1266% 0.01% $6,289,038
BANK OF AMERICA CORP /DE/ 1.2% 347,831 +303% 0% $5,927,039
JPMORGAN CHASE & CO 1.1% 339,576 +2697% 0% $5,786,374
PUNCH & ASSOCIATES INVESTMENT MANAGEMENT, INC. 1.1% 338,779 -65% 0.33% $5,772,794
MORGAN STANLEY 1.1% 333,312 +288% 0% $5,679,637

Institutional Holders of POTBELLY CORP - Common Stock, $0.01 par value (PBPB) across Reporting Periods

Period Reported Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2025 Q4 0 $0 -$3,706,906 $17.12 0
2025 Q3 25,854,478 $440,552,372 +$77,704,976 $17.04 131
2025 Q2 23,450,131 $287,268,431 +$15,442,217 $12.25 124
2025 Q1 22,206,628 $211,188,774 +$2,604,100 $9.51 115
2024 Q4 22,101,186 $208,190,733 +$4,474,096 $9.42 114
2024 Q3 21,067,532 $175,704,591 +$1,011,823 $8.34 107
2024 Q2 20,874,195 $167,619,060 -$4,202,770 $8.03 108
2024 Q1 20,982,167 $254,096,272 +$27,480,628 $12.11 117
2023 Q4 18,778,904 $195,676,724 +$8,597,360 $10.42 89
2023 Q3 18,063,408 $140,891,845 -$1,413,411 $7.80 91
2023 Q2 18,460,496 $162,081,360 +$13,819,847 $8.78 86
2023 Q1 16,904,245 $140,815,692 +$18,845,408 $8.33 75
2022 Q4 14,950,711 $83,271,950 +$1,083,959 $5.57 52
2022 Q3 13,362,828 $60,530,000 -$4,788,377 $4.53 46
2022 Q2 15,606,559 $88,163,819 +$376,232 $5.65 47
2022 Q1 15,466,291 $103,624,000 +$1,553,154 $6.70 49
2021 Q4 15,271,949 $85,215,234 +$2,261,949 $5.58 53
2021 Q3 14,707,129 $99,716,285 -$1,214,805 $6.78 60
2021 Q2 14,823,309 $117,099,332 +$3,392,194 $7.90 64
2021 Q1 14,506,242 $85,731,748 +$16,995,672 $5.91 54
2020 Q4 11,640,313 $51,212,185 -$845,244 $4.40 45
2020 Q3 11,037,990 $41,828,000 +$3,969,375 $3.79 43
2020 Q2 10,270,734 $23,415,507 -$8,433,213 $2.28 49
2020 Q1 13,317,882 $41,152,094 -$2,949,126 $3.09 60
2019 Q4 13,937,320 $58,815,817 +$2,817,270 $4.22 70
2019 Q3 13,399,760 $58,477,683 -$5,718,701 $4.36 72
2019 Q2 14,478,903 $73,656,680 -$24,862,384 $5.09 79
2019 Q1 17,327,150 $147,444,960 -$1,749,175 $8.51 97
2018 Q4 17,564,820 $141,399,529 -$14,597,957 $8.05 95
2018 Q3 18,933,030 $232,879,870 +$7,543,866 $12.30 104
2018 Q2 18,317,629 $237,387,555 +$6,213,771 $12.95 99
2018 Q1 17,860,328 $215,213,418 +$3,146,072 $12.05 98
2017 Q4 17,691,994 $217,626,169 -$6,786,920 $12.30 99
2017 Q3 18,180,708 $225,435,650 +$7,769,322 $12.40 95
2017 Q2 17,800,862 $204,715,131 -$13,611,634 $11.50 116
2017 Q1 18,353,828 $254,786,217 +$31,373,604 $13.90 124
2016 Q4 17,800,987 $229,803,791 +$1,192,254 $12.90 130
2016 Q3 17,815,385 $221,555,648 +$1,534,329 $12.43 119
2016 Q2 17,688,074 $221,938,438 -$2,703,212 $12.54 119
2016 Q1 17,879,557 $243,560,000 +$9,244,603 $13.61 117
2015 Q4 17,354,112 $203,079,376 -$8,338,472 $11.71 106
2015 Q3 18,174,443 $200,094,677 +$22,703,550 $11.01 106
2015 Q2 16,187,126 $198,299,624 +$11,089,674 $12.25 115
2015 Q1 15,073,417 $206,493,740 +$18,044,296 $13.70 106
2014 Q4 13,716,621 $176,529,901 +$4,710,705 $12.87 91
2014 Q3 13,407,270 $156,322,012 +$9,628,484 $11.66 80
2014 Q2 12,024,134 $191,858,513 +$62,228,759 $15.96 86
2014 Q1 8,050,444 $143,859,681 -$4,311,716 $17.87 70