- Corporate Officers - N
- Nierenberg David
Insider Trading History of Nierenberg David
The following table details the insider trading activities
(stock purchases, stock sales, and stock option exercises) of Nierenberg David since 2005.
This trader's CIK number is 1040899.
At the time of last reporting, Nierenberg David was the Officer of Potbelly Corp. (stock ticker symbol PBPB).
Also see all insider trading activities at Potbelly Corp.
Note that in the past
Nierenberg David also reported insider trading activities as an insider of the following companies:
Yearly summary of insider trading at Asset Acceptance Capital Corp (AACC) by Nierenberg David
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2013 | AACC | 0 | $0 | 824,687 | $5,339,210 | 0 | $0 |
| 2008 | AACC | 2,081,054 | $24,946,994 | 0 | $0 | 0 | $0 |
Yearly summary of insider trading at Riverview Bancorp Inc (RVSB) by Nierenberg David
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2020 | RVSB | 30,000 | $149,419 | 0 | $0 | 0 | $0 |
| 2019 | RVSB | 20,000 | $137,000 | 0 | $0 | 0 | $0 |
| 2018 | RVSB | 8,795 | $72,620 | 0 | $0 | 0 | $0 |
| 2016 | RVSB | 59,084 | $277,895 | 0 | $0 | 0 | $0 |
Yearly summary of insider trading at Flotek Industries Inc/cn/ (FTK) by Nierenberg David
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2023 | FTK | 74,340 | $261,657 | 750,000 | $468,750 | 0 | $0 |
| 2020 | FTK | 2,237,019 | $3,597,317 | 0 | $0 | 0 | $0 |
| 2019 | FTK | 781,700 | $2,289,043 | 0 | $0 | 0 | $0 |
Yearly summary of insider trading at Rosetta Stone Inc (RST) by Nierenberg David
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2019 | RST | 0 | $0 | 200,000 | $5,167,742 | 0 | $0 |
| 2018 | RST | 0 | $0 | 150,000 | $2,482,500 | 0 | $0 |
| 2017 | RST | 0 | $0 | 276,112 | $3,317,997 | 0 | $0 |
Yearly summary of insider trading at Natus Medical Inc (BABY) by Nierenberg David
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2010 | BABY | 0 | $0 | 592,777 | $8,513,374 | 0 | $0 |
| 2009 | BABY | 0 | $0 | 581,254 | $5,172,051 | 0 | $0 |
| 2008 | BABY | 525,000 | $9,591,750 | 0 | $0 | 0 | $0 |
| 2007 | BABY | 36,431 | $512,344 | 0 | $0 | 0 | $0 |
| 2005 | BABY | 944,200 | $10,219,935 | 0 | $0 | 0 | $0 |
Yearly summary of insider trading at Electro Scientific Industries Inc (ESIO) by Nierenberg David
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2012 | ESIO | 0 | $0 | 105,000 | $1,271,000 | 0 | $0 |
| 2009 | ESIO | 0 | $0 | 253,643 | $1,598,214 | 0 | $0 |
| 2008 | ESIO | 632,067 | $10,010,285 | 0 | $0 | 0 | $0 |
Yearly summary of insider trading at Mexican Restaurants Inc (CASA) by Nierenberg David
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2005 | CASA | 70,310 | $668,255 | 0 | $0 | 0 | $0 |
Yearly summary of insider trading at Medcath Corp (MDTH) by Nierenberg David
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2009 | MDTH | 0 | $0 | 70,000 | $485,800 | 0 | $0 |
| 2008 | MDTH | 230,254 | $4,770,583 | 0 | $0 | 0 | $0 |
| 2007 | MDTH | 635,106 | $14,805,469 | 0 | $0 | 0 | $0 |
Yearly summary of insider trading at Potbelly Corp (PBPB) by Nierenberg David
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2024 | PBPB | 74,345 | $485,599 | 0 | $0 | 0 | $0 |
Yearly summary of insider trading at Azenta, Inc. (BRKS) by Nierenberg David
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2008 | BRKS | 12,600 | $109,793 | 0 | $0 | 0 | $0 |
Yearly summary of insider trading at Pediatric Services Of America Inc (PSAI) by Nierenberg David
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2005 | PSAI | 146,970 | $1,993,729 | 0 | $0 | 0 | $0 |
Yearly summary of insider trading at Radisys Corp (RSYS) by Nierenberg David
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2014 | RSYS | 0 | $0 | 801,176 | $1,962,881 | 0 | $0 |
| 2012 | RSYS | 0 | $0 | 0 | $0 | 2,500 | $0 |
| 2008 | RSYS | 175,186 | $1,929,956 | 0 | $0 | 0 | $0 |
| 2007 | RSYS | 90,833 | $1,048,149 | 0 | $0 | 0 | $0 |
Yearly summary of insider trading at Homestore Inc (MOVE) by Nierenberg David
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2008 | MOVE | 6,725,176 | $19,444,979 | 0 | $0 | 0 | $0 |
Insider trading activities at 13 companies by Nierenberg David:
1. Asset Acceptance Capital Corp (AACC)
2. Riverview Bancorp Inc (RVSB)
3. Flotek Industries Inc/cn/ (FTK)
4. Rosetta Stone Inc (RST)
5. Natus Medical Inc (BABY)
6. Electro Scientific Industries Inc (ESIO)
7. Mexican Restaurants Inc (CASA)
8. Medcath Corp (MDTH)
9. Potbelly Corp (PBPB)
10. Azenta, Inc. (BRKS)
11. Pediatric Services Of America Inc (PSAI)
12. Radisys Corp (RSYS)
13. Homestore Inc (MOVE)
Table 1. Insider trading of Asset Acceptance Capital Corp (AACC) by Nierenberg David
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2013-05-01 | AACC | Sale | 324,428 | 6.47 | 2,099,049 |
| 2013-04-29 | AACC | Sale | 348,702 | 6.48 | 2,259,588 |
| 2013-04-30 | AACC | Sale | 151,557 | 6.47 | 980,573 |
| 2008-08-28 | AACC | Buy | 1,750 | 10.79 | 18,882 |
| 2008-08-27 | AACC | Buy | 2,000 | 10.53 | 21,060 |
| 2008-08-29 | AACC | Buy | 1,750 | 10.80 | 18,900 |
| 2008-08-22 | AACC | Buy | 2,400 | 10.86 | 26,064 |
| 2008-08-25 | AACC | Buy | 2,400 | 10.44 | 25,056 |
| 2008-08-26 | AACC | Buy | 2,500 | 10.33 | 25,825 |
| 2008-08-19 | AACC | Buy | 5,000 | 10.88 | 54,400 |
| 2008-08-20 | AACC | Buy | 2,400 | 10.84 | 26,016 |
| 2008-08-21 | AACC | Buy | 2,400 | 10.80 | 25,920 |
| 2008-08-18 | AACC | Buy | 6,977 | 11.13 | 77,654 |
| 2008-08-14 | AACC | Buy | 3,200 | 11.01 | 35,232 |
| 2008-08-15 | AACC | Buy | 3,200 | 11.29 | 36,128 |
| 2008-08-12 | AACC | Buy | 4,400 | 10.95 | 48,180 |
| 2008-08-13 | AACC | Buy | 4,400 | 10.78 | 47,432 |
| 2008-08-11 | AACC | Buy | 4,700 | 11.62 | 54,613 |
| 2008-08-08 | AACC | Buy | 2,800 | 10.90 | 30,520 |
| 2008-08-07 | AACC | Buy | 8,000 | 10.42 | 83,360 |
| 2008-08-06 | AACC | Buy | 3,000 | 10.53 | 31,589 |
| 2008-08-08 | AACC | Buy | 2,800 | 10.90 | 30,520 |
| 2008-08-07 | AACC | Buy | 8,000 | 10.42 | 83,360 |
| 2008-08-06 | AACC | Buy | 3,000 | 10.53 | 31,589 |
| 2008-08-05 | AACC | Buy | 20,206 | 10.56 | 213,375 |
| 2008-08-01 | AACC | Buy | 3,600 | 11.79 | 42,444 |
| 2008-08-04 | AACC | Buy | 4,700 | 11.50 | 54,050 |
| 2008-07-31 | AACC | Buy | 2,319 | 11.71 | 27,155 |
| 2008-07-30 | AACC | Buy | 3,900 | 11.72 | 45,708 |
| 2008-07-29 | AACC | Buy | 1,000 | 11.32 | 11,320 |
| 2008-07-28 | AACC | Buy | 8,960 | 11.28 | 101,068 |
| 2008-07-25 | AACC | Buy | 7,000 | 11.52 | 80,640 |
| 2008-07-24 | AACC | Buy | 9,040 | 11.73 | 106,039 |
| 2008-07-23 | AACC | Buy | 3,200 | 12.13 | 38,816 |
| 2008-07-22 | AACC | Buy | 3,700 | 11.39 | 42,143 |
| 2008-07-21 | AACC | Buy | 2,600 | 11.00 | 28,600 |
| 2008-07-16 | AACC | Buy | 2,050 | 9.47 | 19,413 |
| 2008-07-11 | AACC | Buy | 10,700 | 9.67 | 103,469 |
| 2008-07-14 | AACC | Buy | 36,818 | 9.58 | 352,716 |
| 2008-07-15 | AACC | Buy | 16,668 | 9.41 | 156,845 |
| 2008-07-08 | AACC | Buy | 1,200 | 9.72 | 11,664 |
| 2008-07-09 | AACC | Buy | 100 | 9.74 | 974 |
| 2008-07-10 | AACC | Buy | 27,866 | 9.61 | 267,792 |
| 2008-07-03 | AACC | Buy | 80,000 | 11.97 | 957,600 |
| 2008-07-02 | AACC | Buy | 90,982 | 12.09 | 1,099,972 |
| 2008-07-01 | AACC | Buy | 124,354 | 12.08 | 1,502,196 |
| 2008-06-30 | AACC | Buy | 171,220 | 12.15 | 2,080,323 |
| 2008-06-27 | AACC | Buy | 110,555 | 12.38 | 1,368,670 |
| 2008-06-26 | AACC | Buy | 8,000 | 12.49 | 99,920 |
| 2008-06-30 | AACC | Buy | 171,220 | 12.15 | 2,080,323 |
| 2008-06-27 | AACC | Buy | 110,555 | 12.38 | 1,368,670 |
| 2008-06-26 | AACC | Buy | 8,000 | 12.49 | 99,920 |
| 2008-06-23 | AACC | Buy | 104 | 12.60 | 1,310 |
| 2008-06-25 | AACC | Buy | 3,900 | 12.53 | 48,867 |
| 2008-06-24 | AACC | Buy | 25,400 | 12.50 | 317,500 |
| 2008-06-20 | AACC | Buy | 12,404 | 12.58 | 156,042 |
| 2008-06-19 | AACC | Buy | 2,000 | 12.60 | 25,200 |
| 2008-06-18 | AACC | Buy | 2,000 | 12.60 | 25,200 |
| 2008-06-09 | AACC | Buy | 322 | 12.60 | 4,057 |
| 2008-06-10 | AACC | Buy | 5,000 | 12.60 | 63,000 |
| 2008-06-11 | AACC | Buy | 3,995 | 12.60 | 50,337 |
| 2008-05-19 | AACC | Buy | 397,300 | 12.60 | 5,005,980 |
| 2008-05-15 | AACC | Buy | 22,900 | 12.59 | 288,311 |
| 2008-05-16 | AACC | Buy | 44,737 | 12.53 | 560,554 |
| 2008-05-14 | AACC | Buy | 23,279 | 12.56 | 292,384 |
| 2008-05-09 | AACC | Buy | 3,300 | 12.10 | 39,930 |
| 2008-05-08 | AACC | Buy | 4,100 | 11.99 | 49,159 |
| 2008-05-07 | AACC | Buy | 40,481 | 11.96 | 484,152 |
| 2008-04-30 | AACC | Buy | 72,468 | 11.94 | 865,267 |
| 2008-04-29 | AACC | Buy | 254,346 | 11.70 | 2,975,848 |
| 2008-04-22 | AACC | Buy | 5,628 | 11.08 | 62,358 |
| 2008-04-23 | AACC | Buy | 9,600 | 11.05 | 106,080 |
| 2008-04-24 | AACC | Buy | 300 | 11.10 | 3,330 |
| 2008-04-14 | AACC | Buy | 29,900 | 10.97 | 328,003 |
Table 2. Insider trading of Riverview Bancorp Inc (RVSB) by Nierenberg David
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2020-03-13 | RVSB | Buy | 16,135 | 5.05 | 81,481 |
| 2020-03-16 | RVSB | Buy | 13,865 | 4.90 | 67,938 |
| 2019-09-04 | RVSP | Buy | 20,000 | 6.85 | 137,000 |
| 2018-10-31 | RVSP | Buy | 6,195 | 8.26 | 51,170 |
| 2018-10-30 | RVSP | Buy | 2,600 | 8.25 | 21,450 |
| 2016-06-09 | RVSB | Buy | 345 | 4.68 | 1,613 |
| 2016-06-10 | RVSB | Buy | 13,983 | 4.68 | 65,440 |
| 2016-05-24 | RVSB | Buy | 18,500 | 4.77 | 88,300 |
| 2016-05-23 | RVSB | Buy | 200 | 4.71 | 942 |
| 2016-05-19 | RVSB | Buy | 10,956 | 4.63 | 50,781 |
| 2016-05-20 | RVSB | Buy | 15,100 | 4.69 | 70,819 |
Table 3. Insider trading of Flotek Industries Inc/cn/ (FTK) by Nierenberg David
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2023-12-14 | FTK | Buy | 19,481 | 3.72 | 72,469 |
| 2023-12-13 | FTK | Buy | 33,118 | 3.53 | 116,906 |
| 2023-12-12 | FTK | Buy | 12,735 | 3.42 | 43,553 |
| 2023-12-11 | FTK | Buy | 9,006 | 3.19 | 28,729 |
| 2023-06-07 | FTK | Sale | 750,000 | .62 | 468,750 |
| 2020-11-30 | FTK | Buy | 49,231 | 2.05 | 100,923 |
| 2020-11-23 | FTK | Buy | 149,560 | 1.99 | 297,624 |
| 2020-09-14 | FTK | Buy | 42,937 | 2.51 | 107,771 |
| 2020-09-15 | FTK | Buy | 23,918 | 2.53 | 60,512 |
| 2020-09-11 | FTK | Buy | 48,463 | 2.44 | 118,249 |
| 2020-09-08 | FTK | Buy | 11,743 | 2.40 | 28,183 |
| 2020-09-09 | FTK | Buy | 45,400 | 2.43 | 110,322 |
| 2020-09-10 | FTK | Buy | 12,200 | 2.48 | 30,256 |
| 2020-09-01 | FTK | Buy | 2,400 | 2.30 | 5,520 |
| 2020-09-03 | FTK | Buy | 15,770 | 2.39 | 37,690 |
| 2020-09-02 | FTK | Buy | 145,250 | 2.40 | 348,600 |
| 2020-08-20 | FTK | Buy | 185,000 | 1.85 | 342,250 |
| 2020-08-21 | FTK | Buy | 187,355 | 1.95 | 365,342 |
| 2020-08-24 | FTK | Buy | 317,792 | 2.11 | 670,541 |
| 2020-03-13 | FTK | Buy | 235,198 | 1.01 | 237,549 |
| 2020-03-12 | FTK | Buy | 235,197 | .90 | 211,677 |
| 2020-03-11 | FTK | Buy | 529,605 | .99 | 524,308 |
| 2019-09-13 | FTK | Buy | 96,800 | 2.50 | 242,000 |
| 2019-09-16 | FTK | Buy | 16,700 | 2.54 | 42,418 |
| 2019-09-10 | FTK | Buy | 61,000 | 2.30 | 140,300 |
| 2019-09-11 | FTK | Buy | 112,200 | 2.40 | 269,280 |
| 2019-09-12 | FTK | Buy | 95,000 | 2.45 | 232,750 |
| 2019-06-07 | FTK | Buy | 81,300 | 3.57 | 290,241 |
| 2019-06-10 | FTK | Buy | 29,950 | 3.68 | 110,216 |
| 2019-06-04 | FTK | Buy | 96,500 | 3.46 | 333,890 |
| 2019-06-05 | FTK | Buy | 50,000 | 3.43 | 171,500 |
| 2019-06-06 | FTK | Buy | 41,000 | 3.42 | 140,220 |
| 2019-06-03 | FTK | Buy | 46,150 | 3.19 | 147,218 |
| 2019-05-31 | FTK | Buy | 34,900 | 3.06 | 106,794 |
| 2019-05-30 | FTK | Buy | 20,200 | 3.08 | 62,216 |
Table 4. Insider trading of Rosetta Stone Inc (RST) by Nierenberg David
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2019-05-17 | RST | Sale | 38,792 | 25.75 | 998,894 |
| 2019-05-15 | RST | Sale | 23,222 | 25.33 | 588,213 |
| 2019-05-16 | RST | Sale | 45,127 | 25.60 | 1,155,251 |
| 2019-05-10 | RST | Sale | 57,304 | 26.38 | 1,511,679 |
| 2019-05-13 | RST | Sale | 17,426 | 26.04 | 453,773 |
| 2019-05-14 | RST | Sale | 18,129 | 25.37 | 459,932 |
| 2018-05-29 | RST | Sale | 150,000 | 16.55 | 2,482,500 |
| 2017-11-28 | RST | Sale | 77,786 | 12.06 | 938,099 |
| 2017-11-29 | RST | Sale | 46,800 | 11.99 | 561,132 |
| 2017-11-30 | RST | Sale | 75,414 | 11.97 | 902,705 |
| 2017-06-06 | RST | Sale | 13,543 | 12.01 | 162,651 |
| 2017-06-02 | RST | Sale | 27,409 | 12.06 | 330,552 |
| 2017-06-05 | RST | Sale | 29,389 | 12.03 | 353,549 |
| 2017-05-16 | RST | Sale | 5,771 | 12.01 | 69,309 |
Table 5. Insider trading of Natus Medical Inc (BABY) by Nierenberg David
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2010-03-08 | BABY | Sale | 129,718 | 14.40 | 1,867,939 |
| 2010-03-09 | BABY | Sale | 39,204 | 14.46 | 566,889 |
| 2010-03-05 | BABY | Sale | 48,852 | 14.40 | 703,468 |
| 2010-03-02 | BABY | Sale | 81,293 | 14.16 | 1,151,108 |
| 2010-03-03 | BABY | Sale | 81,263 | 14.36 | 1,166,936 |
| 2010-02-24 | BABY | Sale | 8,607 | 14.02 | 120,670 |
| 2010-02-22 | BABY | Sale | 20,100 | 14.10 | 283,410 |
| 2010-01-13 | BABY | Sale | 100,000 | 14.36 | 1,436,000 |
| 2010-01-15 | BABY | Sale | 38,340 | 14.50 | 555,930 |
| 2010-01-14 | BABY | Sale | 45,400 | 14.56 | 661,024 |
| 2009-04-30 | BABY | Sale | 500,000 | 8.90 | 4,450,000 |
| 2009-03-27 | BABY | Sale | 35,454 | 9.14 | 324,049 |
| 2009-03-31 | BABY | Sale | 45,800 | 8.69 | 398,002 |
| 2008-04-04 | BABY | Buy | 175,000 | 18.27 | 3,197,250 |
| 2008-04-04 | BABY | Buy | 175,000 | 18.27 | 3,197,250 |
| 2008-04-04 | BABY | Buy | 175,000 | 18.27 | 3,197,250 |
| 2007-09-25 | BABY | Buy | 8,000 | 14.04 | 112,320 |
| 2007-09-24 | BABY | Buy | 28,431 | 14.07 | 400,024 |
| 2005-10-18 | BABY | Buy | 600,000 | 11.88 | 7,128,000 |
| 2005-08-16 | BABY | Buy | 28,200 | 10.10 | 284,820 |
| 2005-08-15 | BABY | Buy | 153,800 | 10.07 | 1,548,766 |
| 2005-04-13 | BABY | Buy | 49,000 | 7.69 | 376,810 |
| 2005-04-08 | BABY | Buy | 64,300 | 7.73 | 497,039 |
| 2005-04-05 | BABY | Buy | 48,900 | 7.86 | 384,500 |
Table 6. Insider trading of Electro Scientific Industries Inc (ESIO) by Nierenberg David
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2012-08-08 | ESIO | Sale | 50,000 | 12.00 | 600,000 |
| 2012-08-07 | ESIO | Sale | 55,000 | 12.20 | 671,000 |
| 2009-03-18 | ESIO | Sale | 55,000 | 6.06 | 333,300 |
| 2009-03-19 | ESIO | Sale | 25,323 | 6.14 | 155,483 |
| 2009-03-20 | ESIO | Sale | 5,200 | 6.01 | 31,252 |
| 2009-02-10 | ESIO | Sale | 1,098 | 6.31 | 6,928 |
| 2009-02-09 | ESIO | Sale | 15,149 | 6.31 | 95,590 |
| 2009-02-04 | ESIO | Sale | 60,000 | 6.41 | 384,600 |
| 2009-02-05 | ESIO | Sale | 41,953 | 6.39 | 268,079 |
| 2009-02-06 | ESIO | Sale | 49,920 | 6.47 | 322,982 |
| 2008-07-21 | ESIO | Buy | 1,900 | 15.28 | 29,032 |
| 2008-07-22 | ESIO | Buy | 56,232 | 15.74 | 885,091 |
| 2008-07-23 | ESIO | Buy | 64,417 | 16.05 | 1,033,892 |
| 2008-07-11 | ESIO | Buy | 10,900 | 13.81 | 150,529 |
| 2008-07-10 | ESIO | Buy | 30,858 | 13.82 | 426,457 |
| 2008-07-09 | ESIO | Buy | 9,360 | 13.89 | 130,010 |
| 2008-01-29 | ESIO | Buy | 100 | 16.03 | 1,603 |
| 2008-01-30 | ESIO | Buy | 34,900 | 16.03 | 559,447 |
| 2008-01-31 | ESIO | Buy | 400 | 15.96 | 6,384 |
| 2008-01-25 | ESIO | Buy | 71,513 | 16.08 | 1,149,929 |
| 2008-01-29 | ESIO | Buy | 69,900 | 16.03 | 1,120,497 |
| 2008-01-28 | ESIO | Buy | 70,087 | 16.03 | 1,123,494 |
| 2008-01-25 | ESIO | Buy | 71,513 | 16.08 | 1,149,929 |
| 2008-01-29 | ESIO | Buy | 69,900 | 16.03 | 1,120,497 |
| 2008-01-28 | ESIO | Buy | 70,087 | 16.03 | 1,123,494 |
Table 7. Insider trading of Mexican Restaurants Inc (CASA) by Nierenberg David
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2005-09-02 | CASA | Buy | 30,600 | 9.58 | 293,148 |
| 2005-08-31 | CASA | Buy | 12,610 | 9.59 | 120,929 |
| 2005-08-24 | CASA | Buy | 5,100 | 9.29 | 47,378 |
| 2005-08-18 | CASA | Buy | 22,000 | 9.40 | 206,800 |
Table 8. Insider trading of Medcath Corp (MDTH) by Nierenberg David
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2009-03-03 | MDTH | Sale | 70,000 | 6.94 | 485,800 |
| 2008-08-29 | MDTH | Buy | 1,900 | 21.48 | 40,812 |
| 2008-08-28 | MDTH | Buy | 1,901 | 21.47 | 40,814 |
| 2008-08-25 | MDTH | Buy | 1,600 | 20.94 | 33,504 |
| 2008-08-26 | MDTH | Buy | 500 | 20.96 | 10,480 |
| 2008-08-27 | MDTH | Buy | 1,900 | 21.00 | 39,900 |
| 2008-08-22 | MDTH | Buy | 599 | 20.90 | 12,519 |
| 2008-08-21 | MDTH | Buy | 2,000 | 20.77 | 41,540 |
| 2008-08-20 | MDTH | Buy | 1,900 | 21.00 | 39,900 |
| 2008-08-15 | MDTH | Buy | 1,600 | 21.47 | 34,352 |
| 2008-08-18 | MDTH | Buy | 3,700 | 21.09 | 78,033 |
| 2008-08-07 | MDTH | Buy | 26,925 | 18.03 | 485,457 |
| 2008-08-08 | MDTH | Buy | 100 | 18.53 | 1,853 |
| 2008-08-11 | MDTH | Buy | 1,100 | 20.50 | 22,550 |
| 2008-08-04 | MDTH | Buy | 2,800 | 18.93 | 53,004 |
| 2008-08-06 | MDTH | Buy | 100 | 19.22 | 1,922 |
| 2008-08-05 | MDTH | Buy | 2,800 | 19.00 | 53,200 |
| 2009-08-01 | MDTH | Buy | 1,500 | 18.72 | 28,080 |
| 2008-07-30 | MDTH | Buy | 2,700 | 18.51 | 49,977 |
| 2008-07-31 | MDTH | Buy | 975 | 18.47 | 18,008 |
| 2008-07-28 | MDTH | Buy | 2,300 | 18.46 | 42,458 |
| 2008-07-24 | MDTH | Buy | 2,300 | 18.46 | 42,458 |
| 2008-07-23 | MDTH | Buy | 2,300 | 18.16 | 41,768 |
| 2008-07-22 | MDTH | Buy | 2,300 | 18.00 | 41,400 |
| 2008-07-21 | MDTH | Buy | 1,600 | 17.10 | 27,360 |
| 2008-02-29 | MDTH | Buy | 7,900 | 20.77 | 164,083 |
| 2008-03-03 | MDTH | Buy | 92,100 | 19.83 | 1,826,342 |
| 2008-01-04 | MDTH | Buy | 26,387 | 23.64 | 623,788 |
| 2008-01-03 | MDTH | Buy | 24,235 | 23.96 | 580,670 |
| 2008-01-02 | MDTH | Buy | 8,800 | 24.05 | 211,640 |
| 2007-12-31 | MDTH | Buy | 3,432 | 24.10 | 82,711 |
| 2007-12-28 | MDTH | Buy | 43,646 | 24.08 | 1,050,995 |
| 2007-12-20 | MDTH | Buy | 1,164 | 22.75 | 26,481 |
| 2007-12-19 | MDTH | Buy | 18,438 | 22.70 | 418,542 |
| 2007-11-13 | MDTH | Buy | 70,250 | 26.30 | 1,847,575 |
| 2007-11-14 | MDTH | Buy | 450,000 | 22.47 | 10,111,500 |
| 2007-11-02 | MDTH | Buy | 46,508 | 26.15 | 1,216,184 |
| 2007-11-05 | MDTH | Buy | 4,500 | 26.31 | 118,395 |
| 2007-11-06 | MDTH | Buy | 600 | 26.33 | 15,797 |
Table 9. Insider trading of Potbelly Corp (PBPB) by Nierenberg David
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2024-08-05 | PBPB | Buy | 45,772 | 6.48 | 296,602 |
| 2024-08-06 | PBPB | Buy | 5,179 | 6.59 | 34,129 |
| 2024-08-07 | PBPB | Buy | 23,394 | 6.62 | 154,868 |
Table 10. Insider trading of Azenta, Inc. (BRKS) by Nierenberg David
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2008-07-23 | BRKS | Buy | 4,600 | 8.79 | 40,433 |
| 2008-07-22 | BRKS | Buy | 4,700 | 8.67 | 40,749 |
| 2008-07-21 | BRKS | Buy | 3,300 | 8.67 | 28,611 |
Table 11. Insider trading of Pediatric Services Of America Inc (PSAI) by Nierenberg David
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2005-11-11 | PSAI | Buy | 19,725 | 15.04 | 296,762 |
| 2005-11-08 | PSAI | Buy | 23,276 | 15.06 | 350,466 |
| 2005-10-31 | PSAI | Buy | 124 | 14.75 | 1,829 |
| 2005-10-21 | PSAI | Buy | 1,000 | 15.00 | 15,000 |
| 2005-10-18 | PSAI | Buy | 300 | 14.96 | 4,488 |
| 2005-10-14 | PSAI | Buy | 1,300 | 14.95 | 19,428 |
| 2005-10-04 | PSAI | Buy | 1,510 | 13.60 | 20,536 |
| 2005-09-28 | PSAI | Buy | 2,125 | 13.60 | 28,900 |
| 2005-09-21 | PSAI | Buy | 18,543 | 13.41 | 248,754 |
| 2005-09-14 | PSAI | Buy | 8,736 | 13.54 | 118,311 |
| 2005-09-06 | PSAI | Buy | 7,507 | 13.39 | 100,496 |
| 2005-08-31 | PSAI | Buy | 32,424 | 13.09 | 424,332 |
| 2005-04-15 | PSAI | Buy | 1,000 | 12.00 | 12,000 |
| 2005-04-14 | PSAI | Buy | 4,600 | 12.00 | 55,200 |
| 2005-04-05 | PSAI | Buy | 3,200 | 12.00 | 38,400 |
| 2005-03-29 | PSAI | Buy | 1,300 | 12.00 | 15,600 |
| 2005-03-24 | PSAI | Buy | 5,900 | 11.99 | 70,770 |
| 2005-03-21 | PSAI | Buy | 9,800 | 11.96 | 117,257 |
| 2005-03-08 | PSAI | Buy | 4,600 | 12.00 | 55,200 |
Table 12. Insider trading of Radisys Corp (RSYS) by Nierenberg David
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2014-11-07 | RSYS | Sale | 801,176 | 2.45 | 1,962,881 |
| 2012-06-15 | RSYS | Option Ex | 2,500 | .00 | 0 |
| 2008-12-29 | RSYS | Buy | 4,300 | 4.50 | 19,350 |
| 2008-07-31 | RSYS | Buy | 5,000 | 11.50 | 57,500 |
| 2008-07-29 | RSYS | Buy | 34,564 | 10.32 | 356,700 |
| 2008-07-23 | RSYS | Buy | 15,880 | 9.64 | 153,083 |
| 2008-07-24 | RSYS | Buy | 24,934 | 9.73 | 242,607 |
| 2008-07-25 | RSYS | Buy | 24,622 | 9.72 | 239,325 |
| 2008-01-11 | RSYS | Buy | 600 | 12.20 | 7,320 |
| 2008-01-15 | RSYS | Buy | 701 | 12.25 | 8,587 |
| 2008-01-08 | RSYS | Buy | 3,300 | 12.94 | 42,702 |
| 2008-01-07 | RSYS | Buy | 12,180 | 12.98 | 158,096 |
| 2008-01-04 | RSYS | Buy | 11,000 | 12.96 | 142,560 |
| 2008-01-03 | RSYS | Buy | 18,207 | 13.06 | 237,783 |
| 2008-01-02 | RSYS | Buy | 1,500 | 13.10 | 19,650 |
| 2007-12-31 | RSYS | Buy | 18,398 | 13.30 | 244,693 |
| 2007-12-28 | RSYS | Buy | 29,933 | 13.29 | 397,809 |
| 2007-09-05 | RSYS | Buy | 200 | 10.80 | 2,160 |
| 2007-08-28 | RSYS | Buy | 930 | 10.59 | 9,848 |
| 2007-08-29 | RSYS | Buy | 12,166 | 10.69 | 130,054 |
| 2007-08-24 | RSYS | Buy | 7,040 | 10.59 | 74,553 |
| 2007-08-23 | RSYS | Buy | 25,367 | 10.58 | 268,382 |
| 2007-08-15 | RSYS | Buy | 15,197 | 10.88 | 165,343 |
Table 13. Insider trading of Homestore Inc (MOVE) by Nierenberg David
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2008-07-28 | MOVE | Buy | 18,653 | 2.40 | 44,767 |
| 2008-07-30 | MOVE | Buy | 415,000 | 2.40 | 996,000 |
| 2008-07-21 | MOVE | Buy | 12,300 | 2.28 | 28,043 |
| 2008-07-22 | MOVE | Buy | 17,500 | 2.42 | 42,350 |
| 2008-07-23 | MOVE | Buy | 17,200 | 2.47 | 42,484 |
| 2008-07-15 | MOVE | Buy | 5,600 | 2.07 | 11,592 |
| 2008-07-14 | MOVE | Buy | 14,800 | 2.09 | 30,931 |
| 2008-06-25 | MOVE | Buy | 125,200 | 2.59 | 324,268 |
| 2008-06-26 | MOVE | Buy | 100,000 | 2.45 | 245,000 |
| 2008-06-27 | MOVE | Buy | 425,500 | 2.33 | 991,415 |
| 2008-06-24 | MOVE | Buy | 334,800 | 2.64 | 883,872 |
| 2008-06-20 | MOVE | Buy | 43,400 | 2.94 | 127,596 |
| 2008-06-23 | MOVE | Buy | 169,000 | 2.88 | 486,720 |
| 2008-06-16 | MOVE | Buy | 19,036 | 2.93 | 55,775 |
| 2008-06-17 | MOVE | Buy | 15,000 | 2.93 | 43,950 |
| 2008-06-18 | MOVE | Buy | 22,600 | 2.91 | 65,766 |
| 2008-06-11 | MOVE | Buy | 2,800 | 2.94 | 8,232 |
| 2008-06-13 | MOVE | Buy | 19,814 | 2.91 | 57,658 |
| 2008-06-12 | MOVE | Buy | 38,506 | 2.93 | 112,822 |
| 2008-06-06 | MOVE | Buy | 54,769 | 2.95 | 161,568 |
| 2008-06-09 | MOVE | Buy | 237,029 | 2.90 | 687,384 |
| 2008-06-10 | MOVE | Buy | 1,800 | 2.90 | 5,220 |
| 2008-05-02 | MOVE | Buy | 31,500 | 2.94 | 92,610 |
| 2008-06-04 | MOVE | Buy | 7,100 | 2.93 | 20,803 |
| 2008-06-03 | MOVE | Buy | 64,571 | 2.93 | 189,193 |
| 2008-06-02 | MOVE | Buy | 27,500 | 2.94 | 80,850 |
| 2008-05-28 | MOVE | Buy | 142,400 | 2.94 | 418,656 |
| 2008-05-29 | MOVE | Buy | 13,378 | 2.95 | 39,465 |
| 2008-05-27 | MOVE | Buy | 1,400 | 2.94 | 4,116 |
| 2008-05-22 | MOVE | Buy | 95,157 | 3.00 | 285,471 |
| 2008-05-23 | MOVE | Buy | 180,000 | 2.93 | 527,400 |
| 2008-05-21 | MOVE | Buy | 118,840 | 2.95 | 350,578 |
| 2008-05-20 | MOVE | Buy | 129,600 | 2.95 | 382,320 |
| 2008-05-19 | MOVE | Buy | 4,800 | 2.98 | 14,304 |
| 2008-05-07 | MOVE | Buy | 3,797,923 | 3.05 | 11,583,665 |
| 2008-04-22 | MOVE | Buy | 700 | 3.05 | 2,135 |
Insider trading activities including stock purchases, stock sales, and option exercises
listed in the above table cannot be completely guaranteed as to their accuracy.
For more information regarding the trades made by Nierenberg David
(Officer of Potbelly Corp at the time of this reporting) see
the Securities and Exchange Commission (SEC) website.