| Date | Owner | Type | Security | Price | Units | Value | |
|---|---|---|---|---|---|---|---|
| Garfield Mark S. Chief Accounting Officer | S | Class A Common Stock | |||||
| Duffield David A | C | Class A Common Stock | |||||
| Duffield David A | C | Class B Common Stock | |||||
| Duffield David A | S | Class A Common Stock | |||||
| Kazmaier Gerrit S President, Prod. and Tech. | S | Class A Common Stock |