Ownership History
| NV 2 EXECUTIVE DR LLC | $11,725,000 | | 26812/0126 | 1V | 12/28/2012 |
| RREEF American REIT III Corp CC | $11,050,000 | | 19660/0233 | 1G | 12/22/2005 |
| NEW BOSTON CHELMSFORD LTD PTNR | $5,150,000 | | 7338/0031 | 1N | 12/21/1994 |
| METROPOLITAN LIFE INSURANCE CO | $4,040,000 | | 6468/0312 | 1L | 05/17/1993 |
| DOBROTH RICHARD E ETALS TRS | $796,000 | | 02981/0261 | 1N | 03/15/1985 |