Ownership History
| ALEXANDRA J PIFER REV TRUST | $0 | | 693/572 | 03/29/2021 |
| PIFER ALEXANDRA J | $0 | | 0678/0158 | 12/17/2019 |
| PIFER MICHAEL+ALEXANDRA J | $100,000 | 1 | 0506/0390 | 02/01/2006 |
| DUCK CREEK LIMITED PARTNERSHIP | $100,000 | 2 | 0409/0520 | 02/28/2002 |
| MAFFEI PETER C GENERAL PARTNER | $0 | 3 | 0409/0185 | 02/14/2002 |