Robin Jack Rossmann Receives Stock Award at Costar Group Inc (CSGP) — SEC Form 4, Aug 04, 2026

SEC Form 4 · No Market Transaction

Stock Award

Compensation grant — no market purchase or sale.

Reporting Owner

Robin Jack Rossmann

CFO

TXN 2026-07-31 · FILED 2026-08-04

Filing Lag 2 business days within 2-day SEC deadline

Form 4 · Statement of Changes in Beneficial Ownership

Costar Group Inc

CSGP CIK 0001057352

Reporting Owner

Name	Relationship
Robin Jack Rossmann CIK 0002146463	CFO

Robin Jack Rossmann at Costar Group Inc Full insider history

Bought (12 mo) —

Sold (12 mo) —

More from this insider at Costar Group Inc

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Derivative Securities Transactions

Title	Strike	Date	Type	Shares	Price	Expiration	Underlying	Ownership
Restricted Stock UnitsF1 F2 F2		2026-07-31	A - Award/Grant	34,771 A	$0.00		34,771 Common Stock, par value $0.01 per share	Direct

Footnotes (2)

F1: Each restricted stock unit represents a contingent right to receive one share of CoStar Group, Inc. common stock. Show more
F2: The restricted stock units vest in three equal installments on August 1, 2027, August 1, 2028 and August 1, 2029. Show more

Institutional Holders

Largest by reported value

5%+ Holders · 13D/G 4 filers

Latest Schedule 13D/G per filer; stakes the filer reported closed are left out.

Other insiders at Costar Group Inc

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