| Type | Value |
|---|---|
| cik | 0001007228 |
| ticker | MATR |
| Date | Type | Insider | Qty | Price | Signals |
|---|---|---|---|---|---|
| 09 May 2008 | OTHER | LEHMAN BROTHERS HOLDINGS INCentity | 2,239,051 | — | indirect |
| 09 May 2008 | OTHER | BLESER JOSEPH G | 7 | — | |
| 05 Jun 2007 | OTHER | BLESER JOSEPH G | 6,000 | — | deriv |
| 19 Oct 2004 | OTHER | BLESER JOSEPH G | 6,000 | — | deriv |
| 31 May 2006 | OTHER | BLESER JOSEPH G | 6,000 | — | deriv |
| 08 Aug 1998 | OTHER | MANGUM MYLLE H | 0 | 0.00 USD | |
| 09 May 2008 | OTHER | MANGUM MYLLE H | 6,000 | — | deriv |
| 09 May 2008 | OTHER | Underwood Thomasentity | 14,000 | — | |
| 09 May 2008 | OTHER | STRIBLING THOMAS Sentity | 1,905 | — | |
| 09 May 2008 | OTHER | STRIBLING THOMAS Sentity | 6,000 | — | deriv |
| 09 May 2008 | OTHER | STRIBLING THOMAS Sentity | 1,875 | — | deriv |
| 09 May 2008 | OTHER | STRIBLING THOMAS Sentity | 5,625 | — | deriv |
| 09 May 2008 | OTHER | STRIBLING THOMAS Sentity | 6,000 | — | deriv |
| 09 May 2008 | OTHER | STRIBLING THOMAS Sentity | 5,625 | — | deriv |
| 09 May 2008 | OTHER | STRIBLING THOMAS Sentity | 10,125 | — | deriv |
| 09 May 2008 | OTHER | STRIBLING THOMAS Sentity | 6,000 | — | deriv |
| 09 May 2008 | OTHER | STRIBLING THOMAS Sentity | 5,625 | — | deriv |
| 08 Aug 1998 | GRANT_AWARD | Street Kaaren J | 0 | 0.00 USD | |
| 09 May 2008 | OTHER | Street Kaaren J | 6,000 | — | deriv |
| 09 May 2008 | OTHER | Street Kaaren J | 6,000 | — | deriv |
| 09 May 2008 | OTHER | Street Kaaren J | 6,000 | — | deriv |
| 08 Aug 1998 | OTHER | LOTHROP DONALD J | 0 | 0.00 USD | |
| 09 May 2008 | OTHER | LOTHROP DONALD J | 6,000 | — | deriv |
| 09 May 2008 | OTHER | LOTHROP DONALD J | 6,000 | — | deriv |
| 09 May 2008 | OTHER | DEWBERRY J TERRY | 1,000 | — |