CoStar director granted 8,262 restricted shares

CoStar Group director John L. Berisford received a restricted stock award of 8,262 shares of common stock.

Rhea-AI Filing Summary

CoStar Group director John L. Berisford received a restricted stock award of 8,262 shares of common stock. The grant was made at no cash cost per share and is classified as a compensation-related acquisition. After this award, he directly holds 11,235 CoStar Group shares.

The restricted stock vests in full on the earlier of the first anniversary of the grant date or the date of CoStar Group’s 2027 Annual Meeting of Stockholders, tying the award to both time-based service and the company’s future shareholder meeting.

Insider Trade Summary

Grant/Award: 8,262 shares

Grant/Award 1 txn

Insider BERISFORD JOHN L

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock, par value $0.01 per share	8,262	$0.00	$0.00

Holdings After Transaction: Common Stock, par value $0.01 per share — 11,235 shares (Direct)

Footnotes (1)

1. F1. The restricted stock award vests in full on the earlier of either the first anniversary of the grant date or the date of the Company's 2027 Annual Meeting of Stockholders.

Key Figures

Restricted shares granted: 8,262 shares Grant price per share: $0.00 per share Shares held after grant: 11,235 shares +1 more

4 metrics

Restricted shares granted 8,262 shares Restricted stock award to director John L. Berisford

Grant price per share $0.00 per share Reported transaction price for the restricted stock grant

Shares held after grant 11,235 shares Total direct holdings following the award

Transaction date June 23, 2026 Date of the restricted stock award

Key Terms

restricted stock award, vests in full, Annual Meeting of Stockholders, Common Stock, par value $0.01 per share

4 terms

restricted stock award financial

"The restricted stock award vests in full on the earlier of either the first anniversary"

A restricted stock award is company shares given to an employee or executive that cannot be sold or fully owned until certain conditions—like staying with the company for a set time or hitting performance targets—are met. Think of it as a gift that only becomes yours after you fulfill specific obligations; for investors, these awards matter because they can increase the total shares outstanding when they vest, reveal how management is being paid and motivated, and create potential selling pressure when restrictions lift.

vests in full financial

"The restricted stock award vests in full on the earlier of either the first anniversary"

Annual Meeting of Stockholders regulatory

"or the date of the Company's 2027 Annual Meeting of Stockholders."

Common Stock, par value $0.01 per share financial

"security_title: Common Stock, par value $0.01 per share"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What did CoStar Group (CSGP) director John L. Berisford report in this Form 4?

John L. Berisford reported receiving a restricted stock award of 8,262 CoStar Group common shares. This is a compensation-related grant, not an open-market purchase or sale, and increases his direct ownership position in the company’s stock.

How many CoStar Group (CSGP) shares does John L. Berisford hold after the grant?

After the restricted stock award, John L. Berisford directly holds 11,235 shares of CoStar Group common stock. This figure reflects his updated ownership following the 8,262-share grant reported in the Form 4 insider transaction filing.

What are the vesting terms of John L. Berisford’s CoStar Group restricted stock?

The restricted stock vests in full on the earlier of the first anniversary of the grant date or CoStar Group’s 2027 Annual Meeting of Stockholders. This structure links the award to continued service and the timing of a future shareholder meeting.

Was cash paid for the CoStar Group (CSGP) shares granted to John L. Berisford?

The 8,262 CoStar Group shares were granted at a reported price of $0.00 per share. This indicates a stock-based compensation award, rather than an open-market purchase where the director would pay cash to acquire the shares.

Does this CoStar Group (CSGP) Form 4 show any insider stock sales?

No insider sales are reported in this Form 4 for CoStar Group. The filing shows one acquisition transaction, a grant of 8,262 restricted shares to director John L. Berisford, with no dispositions or open-market sales disclosed in the transaction summary.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 06/24/2026 - 09:13 PM EDT Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

BERISFORD JOHN L

(Last) (First) (Middle)

C/O COSTAR GROUP, INC.

1201 WILSON BLVD.

(Street)

ARLINGTON VIRGINIA 22209

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
COSTAR GROUP, INC. [ CSGP ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/23/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock, par value $0.01 per share	06/23/2026		A		8,262(1)	A	$0	11,235	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. The restricted stock award vests in full on the earlier of either the first anniversary of the grant date or the date of the Company's 2027 Annual Meeting of Stockholders.

Remarks:

	/s/ Gene Boxer, Attorney-in-Fact	06/24/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)