| Type | Value |
|---|---|
| cik | 0000104987 |
| ticker | ZRBA |
| Date | Type | Insider | Qty | Price | Signals |
|---|---|---|---|---|---|
| 01 Feb 2010 | EXERCISE | Dalland Donald G | 4,875 | 4.00 USD | |
| 01 Feb 2010 | EXERCISE | Dalland Donald G | 4,875 | 0.00 USD | deriv |
| 13 May 2009 | PURCHASE | MATHIESEN JEFFREY S | 50 | 1.75 USD | |
| 12 May 2009 | PURCHASE | NORDQUIST DALE | 100 | 2.00 USD | |
| 12 May 2009 | PURCHASE | NORDQUIST DALE | 2,398 | 1.60 USD | |
| 12 May 2009 | PURCHASE | NORDQUIST DALE | 1,000 | 1.69 USD | |
| 17 Feb 2009 | PURCHASE | NORDQUIST DALE | 3,200 | 1.30 USD | |
| 17 Feb 2009 | PURCHASE | NORDQUIST DALE | 100 | 2.20 USD | |
| 18 Feb 2009 | PURCHASE | NORDQUIST DALE | 400 | 1.60 USD | |
| 23 Feb 2009 | PURCHASE | NORDQUIST DALE | 2,000 | 1.75 USD | |
| 23 Feb 2009 | PURCHASE | NORDQUIST DALE | 4,450 | 1.50 USD | |
| 23 Feb 2009 | PURCHASE | NORDQUIST DALE | 400 | 1.66 USD | |
| 24 Feb 2009 | PURCHASE | NORDQUIST DALE | 1,000 | 1.60 USD | |
| 24 Feb 2009 | PURCHASE | NORDQUIST DALE | 4,000 | 1.50 USD | |
| 23 Feb 2009 | PURCHASE | NORDQUIST DALE | 400 | 1.55 USD | |
| 24 Nov 2008 | PURCHASE | NORDQUIST DALE | 2,448 | 2.00 USD | |
| 20 Nov 2008 | PURCHASE | NORDQUIST DALE | 200 | 1.34 USD | |
| 17 Nov 2008 | PURCHASE | NORDQUIST DALE | 200 | 1.50 USD | |
| 18 Nov 2008 | PURCHASE | NORDQUIST DALE | 900 | 1.50 USD | |
| 13 Nov 2008 | PURCHASE | MATHIESEN JEFFREY S | 2,268 | 1.36 USD | |
| 12 Nov 2008 | PURCHASE | NORDQUIST DALE | 5,950 | 1.65 USD | |
| 12 Sept 2008 | GRANT_AWARD | Bochert Michael | 5,025 | 0.00 USD | deriv |
| 30 Jun 2008 | OTHER | MATHIESEN JEFFREY S | 35,000 | 0.00 USD | deriv |
| 30 Jun 2008 | OTHER | Dalland Donald G | 30,000 | 0.00 USD | deriv |
| 02 Jun 2008 | GRANT_AWARD | NORDQUIST DALE | 40,000 | 0.00 USD | deriv |