| Abbreviation | Definition |
|---|---|
| RCRC | RC2 Corporation |
| RCRSE | Receptors, Inc. |
| RCRSE | Receptors, Incorporated (de-listed) |
| RCRSE | Receptors, Incorporated (de-listed) |
| RCVIE | Rock City Ventures, Inc. |
| RCVIE | Rock City Ventures, Incorporated (de-listed) |
| RCVIE | Rock City Ventures, Incorporated (de-listed) |
| RDCM | Radcom, LTD. |
| RDDB | Redding Bancorp |
| RDGE | Reading Entertainment, Inc. |
| RDGEF | Rand Gold Exploration Company, LTD. |
| RDGEF | Rand Gold & Exploration Company, LTD. |
| RDGL | RadioGel, Inc. |
| RDI | Reading International, Inc. |
| RDIOA | Multi- Market Radio, Inc. |
| RDIOA | Multi-Market Radio, Incorporated (de-listed) |
| RDIOA | Multi-Market Radio, Incorporated (de-listed) |
| RDIOZ | Multi- Market Radio, Warrants B |
| RDIOZ | Multi-Market Radio, Warrants B (de-listed) |
| RDIOZ | Multi-Market Radio, Warrants B (de-listed) |