

| COSTAR GROUP INC | 03/06/2020 AGM | |
|---|---|---|
| 1a | Elect Director Michael R. Klein | Oppose |
| 1b | Elect Director Andrew C. Florance | For |
| 1c | Elect Director Laura Cox Kaplan | For |
| 1d | Elect Director Michael J. Glosserman | Oppose |
| 1e | Elect Director John W. Hill | For |
| 1f | Elect Director Robert W. Musslewhite | For |
| 1g | Elect Director Christopher J. Nassetta | Oppose |
| 1h | Elect Director Louise S. Sams | For |
| 2 | Ratify Ernst & Young LLP as Auditors | Oppose |
| 3 | Advisory Vote on Executive Compensation | Oppose |