Cynthia Cammett Cann - 31 Jul 2026 Form 4 Insider Report for COSTAR GROUP, INC. (CSGP)

Source evidence Original filing metadata and source links for verification. 5 source fields
SEC form
4
Accepted by SEC
04 Aug 2026, 17:24:43 UTC
Prior SEC filing
16 Jun 2026
Next SEC filing
10 Aug 2026
Source filing
View source filing
Reporting owner 1 detail
Reporting owner signature
/s/ Gene Boxer, Attorney-in-Fact
Filing notes and source

Key filing fact

Cynthia Cammett Cann filed Form 4 for COSTAR GROUP, INC. (CSGP) on 04 Aug 2026.

Key facts

  • This page summarizes Cynthia Cammett Cann's Form 4 filing for COSTAR GROUP, INC. (CSGP).
  • 2 reported transactions and 1 derivative row are listed below.
  • Accepted by SEC: 04 Aug 2026, 17:24.

Change

  • Previous filing in this sequence was filed on 16 Jun 2026.
  • Current net transaction value: $0.

Research use

  • This tells you what this filing adds before you inspect full transaction and derivative tables.
  • You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001472762 Primary reporting owner

Cann Cynthia Cammett

Relationship
Chief Accounting Officer
Address
C/O COSTAR GROUP, INC., 1201 WILSON BLVD., ARLINGTON
Signature
/s/ Gene Boxer, Attorney-in-Fact
Signature date
04 Aug 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

CSGP transaction

Common Stock, par value $0.01 per share

Tax liability

Transaction value
Shares
-1,077
Change %
-4.4%
Price
$28.76*
Shares after
23,610
Date
01 Aug 2026
Ownership
Direct

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

CSGP transaction Derivative

Restricted Stock Units

Award

Transaction value
Shares
+26,078
Change %
Price
$0.000000*
Shares after
26,078
Date
31 Jul 2026
Ownership
Direct
Underlying class
Common Stock, par value $0.01 per share
Underlying amount
26,078
Exercise price
Footnotes
F1, F2
* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 2 footnotes

Footnote F1

Each restricted stock unit represents a contingent right to receive one share of CoStar Group, Inc. common stock.

Footnote F2

The restricted stock units vest in four equal installments on August 1, 2027, August 1, 2028, August 1, 2029, and August 1, 2030.

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