Nierenberg David
SEC-identified person · CIK 1040899 Identifier-verified
Public-company roles (from insider filings)
| Company | Capacity as filed | Filings |
|---|---|---|
| Potbelly Corp PBPB | Officer | filed 2024 - 2025 |
| Flotek Industries INC/CN/ FTK | Director | filed 2018 - 2023 |
| Houston Wire & Cable CO HWCC | Director | filed 2020 - 2021 |
| Rosetta Stone INC RST | Director | filed 2015 - 2020 |
| Riverview Bancorp INC RVSP | Director | filed 2016 - 2020 |
| Electro Scientific Industries INC ESIO | Director | filed 2007 - 2015 |
| Radisys Corp RSYS | Officer | filed 2006 - 2014 |
| Asset Acceptance Capital Corp AACC | Officer | filed 2008 - 2013 |
| Move INC MOVED | Officer | filed 2008 - 2012 |
| Medcath Corp mdth | Officer | filed 2007 - 2011 |
| Natus Medical INC NTUS | Officer | filed 2006 - 2010 |
| Mexican Restaurants INC CASA | Officer | filed 2006 - 2009 |
| Brooks Automation, Inc. BRKS | Officer | filed 2008 - 2008 |
| Pediatric Services of America INC PSAI | Officer | filed 2006 - 2006 |
All roles under one Commission-assigned identifier - the same person by the SEC's own record, not by name matching. From the SEC's insider-transaction filings (Forms 3, 4 and 5). Every reporting director and officer carries a Commission-assigned identifier (CIK), so these footprints are identifier-verified - no name matching involved. Insiders file when they transact, so dates are filing dates: "last filed" never means "served until". This layer is not yet joined to the nonprofit register - identity joins ship only after independent review.