David Nierenberg

(Mr. David Nierenberg J.D.)

Currently holds positions in Houston Wire & Cable Co, Rosetta Stone Inc and Riverview Bancorp Inc

Positions

Position Company Period
Director Houston Wire & Cable Co March 16, 2020 -
Independent Director Rosetta Stone Inc April 15, 2015 -
Independent Director Riverview Bancorp Inc April 27, 2016 -
Chairman of the Board Flotek Industries Inc April 1, 2019 - Jan. 6, 2020
Director Flotek Industries Inc June 4, 2018 - April 1, 2019
Independent Director Electro Scientific Industries Inc Feb. 24, 2010 - Feb. 22, 2016
Independent Director Radisys Corp March 14, 2011 - Jan. 17, 2014
David Nierenberg's trades of Potbelly Corp's stock


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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Earnings
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PS: Planned sale, O: Option / Other
Notification date Transaction date B/S Transaction type Nb. shares
Price
Value 		Number of shares Price Value Details
2025-03-31 2025-03-28
US Potbelly Corp (PBPB)
B Purchase
22,169 +21.7%
9.36
USD 207,502 		22,169 +21.7% 9.36 USD 207,502
2025-01-10 2025-01-07
US Potbelly Corp (PBPB)
B Purchase
100 +0.1%
9.24
USD 924 		100 +0.1% 9.24 USD 924
2025-01-10 2025-01-07
US Potbelly Corp (PBPB)
B Purchase
7,500 +7.9%
9.23
USD 69,225 		7,500 +7.9% 9.23 USD 69,225
2024-12-20 2024-12-18
US Potbelly Corp (PBPB)
B Purchase
3,150 +inf%
9.34
USD 29,421 		3,150 +inf% 9.34 USD 29,421
2024-12-20 2024-12-18
US Potbelly Corp (PBPB)
B Purchase
1,590 +inf%
9.40
USD 14,946 		1,590 +inf% 9.40 USD 14,946
2023-12-15 2023-12-14
B Purchase
748 +1.6%
3.72
USD 2,783 		748 +1.6% 3.72 USD 2,783
2023-12-15 2023-12-14
B Purchase
11,948 +1.6%
3.72
USD 44,447 		11,948 +1.6% 3.72 USD 44,447
2023-12-15 2023-12-14
B Purchase
6,785 +1.6%
3.72
USD 25,240 		6,785 +1.6% 3.72 USD 25,240
2023-12-13 2023-12-13
B Purchase
1,272 +2.8%
3.53
USD 4,490 		1,272 +2.8% 3.53 USD 4,490
2023-12-13 2023-12-13
B Purchase
20,310 +2.8%
3.53
USD 71,694 		20,310 +2.8% 3.53 USD 71,694
2023-12-13 2023-12-13
B Purchase
11,536 +2.8%
3.53
USD 40,722 		11,536 +2.8% 3.53 USD 40,722
2023-12-13 2023-12-12
B Purchase
858 +1.9%
3.42
USD 2,934 		858 +1.9% 3.42 USD 2,934
2023-12-13 2023-12-12
B Purchase
6,923 +1.0%
3.42
USD 23,677 		6,923 +1.0% 3.42 USD 23,677
2023-12-13 2023-12-12
B Purchase
4,954 +1.2%
3.42
USD 16,943 		4,954 +1.2% 3.42 USD 16,943
2023-12-13 2023-12-11
B Purchase
3,752 +9.1%
3.19
USD 11,969 		3,752 +9.1% 3.19 USD 11,969
2023-12-13 2023-12-11
B Purchase
5,254 +1.3%
3.19
USD 16,760 		5,254 +1.3% 3.19 USD 16,760
2023-06-09 2023-06-07
S Sale
211,080 -8.0%
0.63
USD 131,925 		211,080 -8.0% 0.63 USD 131,925
2023-06-09 2023-06-07
S Sale
538,920 -11.0%
0.63
USD 336,825 		538,920 -11.0% 0.63 USD 336,825
2020-12-02 2020-11-30
B Purchase
1,878 +1.2%
2.05
USD 3,850 		1,878 +1.2% 2.05 USD 3,850
2020-12-02 2020-11-30
B Purchase
37,070 +1.2%
2.05
USD 75,994 		37,070 +1.2% 2.05 USD 75,994
2020-12-02 2020-11-30
B Purchase
10,283 +0.7%
2.05
USD 21,080 		10,283 +0.7% 2.05 USD 21,080
2020-11-25 2020-11-23
B Purchase
16,260 +12.1%
1.99
USD 32,357 		16,260 +12.1% 1.99 USD 32,357
2020-11-25 2020-11-23
B Purchase
72,607 +2.5%
1.99
USD 144,488 		72,607 +2.5% 1.99 USD 144,488
2020-11-25 2020-11-23
B Purchase
60,693 +4.2%
1.99
USD 120,779 		60,693 +4.2% 1.99 USD 120,779
2020-09-15 2020-09-15
B Purchase
717 +0.5%
2.53
USD 1,814 		717 +0.5% 2.53 USD 1,814
2020-09-15 2020-09-15
B Purchase
15,473 +0.5%
2.53
USD 39,147 		15,473 +0.5% 2.53 USD 39,147
2020-09-15 2020-09-15
B Purchase
7,728 +0.5%
2.53
USD 19,552 		7,728 +0.5% 2.53 USD 19,552
2020-09-15 2020-09-14
B Purchase
1,287 +1.0%
2.51
USD 3,230 		1,287 +1.0% 2.51 USD 3,230
2020-09-15 2020-09-14
B Purchase
27,777 +1.0%
2.51
USD 69,720 		27,777 +1.0% 2.51 USD 69,720
2020-09-15 2020-09-14
B Purchase
13,873 +1.0%
2.51
USD 34,821 		13,873 +1.0% 2.51 USD 34,821
2020-09-15 2020-09-11
B Purchase
1,452 +1.1%
2.44
USD 3,543 		1,452 +1.1% 2.44 USD 3,543
2020-09-15 2020-09-11
B Purchase
31,352 +1.1%
2.44
USD 76,499 		31,352 +1.1% 2.44 USD 76,499
2020-09-15 2020-09-11
B Purchase
15,659 +1.1%
2.44
USD 38,208 		15,659 +1.1% 2.44 USD 38,208
2020-09-10 2020-09-10
B Purchase
366 +0.3%
2.48
USD 908 		366 +0.3% 2.48 USD 908
2020-09-10 2020-09-10
B Purchase
7,893 +0.3%
2.48
USD 19,575 		7,893 +0.3% 2.48 USD 19,575
2020-09-10 2020-09-10
B Purchase
3,941 +0.3%
2.48
USD 9,774 		3,941 +0.3% 2.48 USD 9,774
2020-09-10 2020-09-09
B Purchase
1,360 +1.1%
2.43
USD 3,305 		1,360 +1.1% 2.43 USD 3,305
2020-09-10 2020-09-09
B Purchase
29,370 +1.1%
2.43
USD 71,369 		29,370 +1.1% 2.43 USD 71,369
2020-09-10 2020-09-09
B Purchase
14,670 +1.1%
2.43
USD 35,648 		14,670 +1.1% 2.43 USD 35,648
2020-09-10 2020-09-08
B Purchase
352 +0.3%
2.40
USD 845 		352 +0.3% 2.40 USD 845
2020-09-10 2020-09-08
B Purchase
7,596 +0.3%
2.40
USD 18,230 		7,596 +0.3% 2.40 USD 18,230
2020-09-10 2020-09-08
B Purchase
3,795 +0.3%
2.40
USD 9,108 		3,795 +0.3% 2.40 USD 9,108
2020-09-03 2020-09-03
B Purchase
473 +0.4%
2.39
USD 1,130 		473 +0.4% 2.39 USD 1,130
2020-09-03 2020-09-03
B Purchase
10,202 +0.4%
2.39
USD 24,383 		10,202 +0.4% 2.39 USD 24,383
2020-09-03 2020-09-03
B Purchase
5,095 +0.4%
2.39
USD 12,177 		5,095 +0.4% 2.39 USD 12,177
2020-09-03 2020-09-02
B Purchase
4,352 +3.5%
2.40
USD 10,445 		4,352 +3.5% 2.40 USD 10,445
2020-09-03 2020-09-02
B Purchase
93,966 +3.5%
2.40
USD 225,518 		93,966 +3.5% 2.40 USD 225,518
2020-09-03 2020-09-02
B Purchase
46,932 +3.5%
2.40
USD 112,637 		46,932 +3.5% 2.40 USD 112,637
2020-09-03 2020-09-01
B Purchase
72 +0.1%
2.30
USD 166 		72 +0.1% 2.30 USD 166
2020-09-03 2020-09-01
B Purchase
1,553 +0.1%
2.30
USD 3,572 		1,553 +0.1% 2.30 USD 3,572
2020-09-03 2020-09-01
B Purchase
775 +0.1%
2.30
USD 1,783 		775 +0.1% 2.30 USD 1,783
2020-08-24 2020-08-24
B Purchase
9,524 +8.3%
2.11
USD 20,096 		9,524 +8.3% 2.11 USD 20,096
2020-08-24 2020-08-24
B Purchase
205,587 +8.3%
2.11
USD 433,789 		205,587 +8.3% 2.11 USD 433,789
2020-08-24 2020-08-24
B Purchase
102,681 +8.3%
2.11
USD 216,657 		102,681 +8.3% 2.11 USD 216,657
2020-08-24 2020-08-21
B Purchase
5,615 +5.2%
1.95
USD 10,949 		5,615 +5.2% 1.95 USD 10,949
2020-08-24 2020-08-21
B Purchase
121,204 +5.2%
1.95
USD 236,348 		121,204 +5.2% 1.95 USD 236,348
2020-08-24 2020-08-21
B Purchase
60,536 +5.2%
1.95
USD 118,045 		60,536 +5.2% 1.95 USD 118,045
2020-08-24 2020-08-20
B Purchase
4,106 +3.9%
1.85
USD 7,596 		4,106 +3.9% 1.85 USD 7,596
2020-08-24 2020-08-20
B Purchase
127,809 +5.8%
1.85
USD 236,447 		127,809 +5.8% 1.85 USD 236,447
2020-08-24 2020-08-20
B Purchase
53,085 +4.7%
1.85
USD 98,207 		53,085 +4.7% 1.85 USD 98,207
2020-03-17 2020-03-16
B Purchase
31,950 +99.0%
2.00
USD 63,900 		31,950 +99.0% 2.00 USD 63,900
2020-03-17 2020-03-16
B Purchase
252,800 +23.8%
2.00
USD 505,600 		252,800 +23.8% 2.00 USD 505,600
2020-03-17 2020-03-16
B Purchase
115,050 +20.9%
2.00
USD 230,100 		115,050 +20.9% 2.00 USD 230,100
2020-03-17 2020-03-16
B Purchase
13,865 +11.9%
4.90
USD 67,939 		13,865 +11.9% 4.90 USD 67,939
2020-03-17 2020-03-13
B Purchase
16,135 +16.0%
5.05
USD 81,482 		16,135 +16.0% 5.05 USD 81,482
2020-03-13 2020-03-13
B Purchase
151,601 +7.3%
1.01
USD 153,117 		151,601 +7.3% 1.01 USD 153,117
2020-03-13 2020-03-13
B Purchase
7,146 +7.3%
1.01
USD 7,217 		7,146 +7.3% 1.01 USD 7,217
2020-03-13 2020-03-13
B Purchase
76,451 +7.3%
1.01
USD 77,216 		76,451 +7.3% 1.01 USD 77,216
2020-03-13 2020-03-12
B Purchase
151,600 +7.9%
0.90
USD 136,440 		151,600 +7.9% 0.90 USD 136,440
2020-03-13 2020-03-12
B Purchase
7,146 +7.9%
0.90
USD 6,431 		7,146 +7.9% 0.90 USD 6,431
2020-03-13 2020-03-12
B Purchase
76,451 +7.9%
0.90
USD 68,806 		76,451 +7.9% 0.90 USD 68,806
2020-03-13 2020-03-11
B Purchase
363,618 +23.4%
0.99
USD 359,982 		363,618 +23.4% 0.99 USD 359,982
2020-03-13 2020-03-11
B Purchase
18,918 +26.4%
0.99
USD 18,729 		18,918 +26.4% 0.99 USD 18,729
2020-03-13 2020-03-11
B Purchase
147,069 +17.9%
0.99
USD 145,598 		147,069 +17.9% 0.99 USD 145,598
2019-09-16 2019-09-16
B Purchase
266 +0.4%
2.54
USD 676 		266 +0.4% 2.54 USD 676
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