8-K - CoStar Group, Inc. | StockGist

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CoStar Group, Inc. appointed Nana Banerjee as an independent director to its Board of Directors, effective March 15, 2026, expanding the Board to nine members with eight independent. Mr. Banerjee will participate in the Company's director compensation program and brings expertise in AI, advanced analytics, and scaling technology businesses to support the Company's growth strategy.

Key Takeaways

1Nana Banerjee appointed to Board effective March 15, 2026.

2Board expands to nine directors, eight independent.

3Mr. Banerjee entitled to director compensation program per Form 10-K Exhibit 10.20.

4Experience includes President and CEO of Pelmorex Corp. and roles at Cerberus, Verisk, McGraw-Hill.

Current Report Details

Event Type

Management Change

Regulation Fd

Exhibits Only

Disclosure

Mandatory

Variant

8-K

Items Reported

5.02

. Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers. On March 15

Management Change

7.01

and the Press Release shall be considered “furnished” and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amen

Regulation Fd

9.01

Financial Statements and Exhibits. Exhibit No. Description 99.1 Press Release, dated March 16, 2026 104 Cover Page Interactive Data File (formatted as inline XB

Exhibits Only

Source Document

Executive & Director Changes

Nana Banerjee

independent member of the Board of Directors

appointed

Effective: 2026-03-15

Exhibits (2)

8-K

EX-99.1