David Nierenberg
Affiliations
- at Potbelly Corp (PBPB), 2025-03-31
- Director at Flotek Industries Inc (FTK), 2023-12-15
- Large Shareholder, Director at Houston Wire & Cable Co (HWCC), 2021-06-21
- Director at Rosetta Stone Inc (RST), 2020-10-16
- Director at Riverview Bancorp Inc (RVSB), 2020-03-17
- Large Shareholder, Director at Electro Scientific Industries Inc (ESIO), 2015-05-19
- Large Shareholder at Radisys Corp (RSYS), 2014-11-12
- Large Shareholder at Asset Acceptance Capital Corp (AACC), 2013-05-03
- Large Shareholder at Move Inc (MOVE), 2012-11-29
- Large Shareholder at Medcath Corp (MDTH), 2011-09-13
- Large Shareholder at Natus Medical Inc (BABY), 2010-03-09
Insider Trading: Purchases See All
| Symbol | Price | Amount | Total Value | Remaining Holdings | Date | Form 4 |
|---|---|---|---|---|---|---|
| PBPB | $9.36 | 22,169 | $207,501.84 | 124,167 | 2025-03-28 | Filing |
| PBPB | $9.24 | 100 | $924.00 | 101,998 | 2025-01-07 | Filing |
| PBPB | $9.23 | 7,500 | $69,225.00 | 101,898 | 2025-01-07 | Filing |
| PBPB | $9.34 | 3,150 | $29,421.00 | 3,150 | 2024-12-18 | Filing |
| PBPB | $9.40 | 1,590 | $14,946.00 | 1,590 | 2024-12-18 | Filing |
Insider Trading: Sales See All
| Symbol | Price | Amount | Total Value | Remaining Holdings | Date | Form 4 |
|---|---|---|---|---|---|---|
| FTK | $0.63 | 211,080 | $131,925.00 | 2,436,303 | 2023-06-07 | Filing |
| FTK | $0.63 | 538,920 | $336,825.00 | 4,355,810 | 2023-06-07 | Filing |
| RST | $25.75 | 1,052 | $27,089.00 | 13,954 | 2019-05-17 | Filing |
| RST | $25.75 | 25,236 | $649,827.00 | 334,692 | 2019-05-17 | Filing |
| RST | $25.75 | 12,504 | $321,978.00 | 165,847 | 2019-05-17 | Filing |