Frank Simuro

CIK: 0001925960

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)0 (0.0%)

Position reduction

Option Exercises (M)0 (0.0%)

Derivative conversions

Awards (A)2 (16.7%)

Compensation grants

Other (G, F, J, C, D, …)10 (83.3%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (1)

CSGP

COSTAR GROUP, INC.

Officer

Discretionary Trading P&L

Holdings

Transaction History (12 total)

CSGP
COSTAR GROUP, INC.
Mar 15, 2026
Tax Payment(F)
Direct
11.1K shares at avg. $43.63$485K
CSGP
COSTAR GROUP, INC.
Mar 1, 2026
Tax Payment(F)
Direct
18.7K shares at avg. $44.63$835K
CSGP
COSTAR GROUP, INC.
Feb 27, 2026
Award(A)
Restricted Stock Units
Direct
52.9K shares-
CSGP
COSTAR GROUP, INC.
Feb 19, 2026
Tax Payment(F)
Direct
4.4K shares at avg. $49.07$217K
CSGP
COSTAR GROUP, INC.
Feb 19, 2026
Disposition(D)
Direct
30.7K shares-
CSGP
COSTAR GROUP, INC.
Feb 15, 2026
Tax Payment(F)
Direct
4.2K shares at avg. $44.99$187K
CSGP
COSTAR GROUP, INC.
Mar 15, 2025
Tax Payment(F)
Direct
5.7K shares at avg. $78.73$449K
CSGP
COSTAR GROUP, INC.
Mar 1, 2025
Tax Payment(F)
Direct
12.4K shares at avg. $76.25$948K
CSGP
COSTAR GROUP, INC.
Feb 20, 2025
Award(A)
Direct
130.6K shares-
CSGP
COSTAR GROUP, INC.
Feb 15, 2025
Tax Payment(F)
Direct
5.5K shares at avg. $74.06$406K
CSGP
COSTAR GROUP, INC.
Feb 13, 2025
Tax Payment(F)
Direct
7.5K shares at avg. $73.27$548K
CSGP
COSTAR GROUP, INC.
Feb 13, 2025
Disposition(D)
Direct
6.5K shares-

		Type	Shares	Price		Ownership
Mar 15, 2026	CSGP COSTAR GROUP, INC.	Tax Payment(F)	11,107	$43.63	$484,598	Direct
Mar 1, 2026	CSGP COSTAR GROUP, INC.	Tax Payment(F)	18,702	$44.63	$834,670	Direct
Feb 27, 2026	CSGP COSTAR GROUP, INC.	Award(A) Restricted Stock Units	52,869	-	-	Direct
Feb 19, 2026	CSGP COSTAR GROUP, INC.	Tax Payment(F)	4,421	$49.07	$216,938	Direct
Feb 19, 2026	CSGP COSTAR GROUP, INC.	Disposition(D)	30,727	-	$0	Direct
Feb 15, 2026	CSGP COSTAR GROUP, INC.	Tax Payment(F)	4,151	$44.99	$186,753	Direct
Mar 15, 2025	CSGP COSTAR GROUP, INC.	Tax Payment(F)	5,700	$78.73	$448,761	Direct
Mar 1, 2025	CSGP COSTAR GROUP, INC.	Tax Payment(F)	12,432	$76.25	$947,940	Direct
Feb 20, 2025	CSGP COSTAR GROUP, INC.	Award(A)	130,640	-	-	Direct
Feb 15, 2025	CSGP COSTAR GROUP, INC.	Tax Payment(F)	5,485	$74.06	$406,219	Direct
Feb 13, 2025	CSGP COSTAR GROUP, INC.	Tax Payment(F)	7,476	$73.27	$547,767	Direct
Feb 13, 2025	CSGP COSTAR GROUP, INC.	Disposition(D)	6,452	-	-	Direct

1-12 of 12 transactions

About SIMURO FRANK

SIMURO FRANK (SEC CIK 0001925960) files insider reports with the SEC as Chief Technology Officer of COSTAR GROUP, INC. (CSGP).

Signal8 holds 8 ownership filings by SIMURO FRANK, all Form 4s, filed between Feb 19, 2025 and Mar 17, 2026. Those filings report 12 transactions, from Feb 13, 2025 to Mar 15, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on SIMURO FRANK's filings is in ARLINGTON, VA.

Recent filings by SIMURO FRANK

Mar 15, 2026: Tax withholding of CSGP shares (Form 4, code F).
Mar 1, 2026: Tax withholding of CSGP shares (Form 4, code F).
Feb 27, 2026: Grant or award of CSGP derivative securities (Form 4, code A).
Feb 19, 2026: Tax withholding of CSGP shares (Form 4, code F).
Feb 19, 2026: Disposition to issuer transaction of CSGP shares (Form 4, code D).

Other insiders filing for COSTAR GROUP, INC. (CSGP)

Rossmann Robin Jack, Chief Financial Officer
Cann Cynthia Cammett, Chief Accounting Officer
Hill John W, Director
FLORANCE ANDREW C, Founder and CEO
SAINT FREDERICK G., President, Marketplaces
LOWN CHRISTIAN M., Chief Financial Officer

How to read Form 4 transaction codes