CoStar Group (CSGP) Proxy filing summary

Executive summary

• Annual Meeting scheduled for June 23, 2026, with voting available online, by mail, or virtually.

• Shareholders are encouraged to review proxy materials and vote on key proposals before the deadline.

Voting matters and shareholder proposals

• Election of eight directors is proposed, with all nominees recommended by the board.

• Ratification of Ernst & Young LLP as independent auditor for 2026 is up for vote.

• Advisory vote on executive compensation (say-on-pay) is included.

• Approval of the 2026 Employee Stock Purchase Plan is proposed.

• Proxies are authorized to vote on any other matters properly presented at the meeting.

Board of directors and corporate governance

• Board recommends all director nominees for election at the annual meeting.