Ownership History
| VLG WALLINGFORD PARTNERS LLC | $6,900,000 | 1206/0428 | 001 | 05/24/2005 |
| VLG WALLINGFORD PARTNERS LLC | $6,900,000 | 1206/0428 | 001 | 05/24/2005 |
| TEN RESEARCH PARKWAY LLC | $4,500,000 | 0891/0420 | | 05/05/1998 |
| NATIONWIDE MUTUAL INSURANCE COMPANY | $1,511,450 | 0652/0782 | | 01/11/1989 |