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as of 11-13-2026 3:36pm EST

$30.82
+$0.71
+2.34%
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CoStar Group is a global provider of proprietary information, analytics, and online marketplaces serving both commercial and residential real estate. The firm operates through a diverse portfolio of brands, including CoStar Suite for commercial real estate research, LoopNet for commercial listings, Apartments.com for multifamily rentals, and Homes.com for residential brokerage. It primarily sells high-margin software-as-a-service subscriptions that provide institutional clients with forensic property data and premium advertising visibility. With operations across North America, Europe, and Asia-Pacific, CoStar maintains the industry's most comprehensive centralized real estate database, functioning as a critical information utility for brokers, lenders, and owners worldwide.

Founded: 1987 Country:
United States
United States
Employees: N/A City: ARLINGTON
Market Cap: 12.9B IPO Year: 1998
Target Price: $35.85 AVG Volume (30 days): 6.0M
Analyst Decision: Buy Number of Analysts: 21
Dividend Yield:
N/A
Dividend Payout Frequency: N/A
EPS: 0.32 EPS Growth: -94.12
52 Week Low/High: $25.89 - $70.57 Next Earning Date: 10-27-2026
Revenue: $965,230,000 Revenue Growth: 15.23%
Revenue Growth (this year): 15.94% Revenue Growth (next year): 11.36%
P/E Ratio: 94.11 Index:
Free Cash Flow: 123.0M FCF Growth: N/A

Stock Insider Trading Activity of CoStar Group Inc. (CSGP)

Hill John W

Director

Sell
CSGP Nov 12, 2026

Avg Cost/Share

$30.18

Shares

3,050

Total Value

$92,049.00

Owned After

19,943

SEC Form 4

Earnings Transcripts

SEC 8-K filings with transcript text

View All
2026
Q3

Q3 2026 Earnings

8-K BUY

Oct 27, 2026 · 90% conf.

AI Prediction BUY

1D

+6.92%

$34.23

Act: -13.96%

5D

+8.08%

$34.60

20D

+9.48%

$35.04

Price: $32.01 Prob +5D: 95% AUC: 1.000
0001057352-26-000078

EX-99.2

4 exhibit992-vexcelpressre.htm

EX-99.2

exhibit992-vexcelpressre

Exhibit 99.2 CoStar Group to Acquire Vexcel, Adding the World’s Largest Survey Grade High- Resolution Aerial Imagery Program to Power Richer Search and Discovery Across CoStar with Tens of Billions of New AI-Derived Data Fields Vexcel’s imagery covers more than 45 countries, 320 major global metros and 99.6% of the U.S. Population and is licensed by the world’s largest technology companies ARLINGTON, Va. October 27, 2026 - CoStar Group, Inc. (NASDAQ: CSGP), a leading global provider of online real estate marketplaces, information, analytics, and digital twins in the property markets, announced today that it has entered into a definitive agreement to acquire Vexcel Group, Inc. (“Vexcel”), the operator of one of the world’s largest survey-grade aerial imagery programs, for approximately $730 million in cash. Built on decades of investment in aerial capture technology and data processing, Vexcel captures more than 60 million images a year drawn from millions of square kilometers of aerial collection. Its geographic scope spans more than 45 countries and 320 major global metros, covering 99.6% of the U.S. Population. Its comprehensive program includes refreshing major U.S. metros up to three times a year and flying disaster zones within 24 hours of the event – giving up to date intelligence on changes to real estate. Vexcel also designs and manufactures the UltraCam family of aerial cameras and controls the capture technology, the aircraft and the processing pipeline end to end. This enables them to deliver resolutions of 7.5 to 15 centimeters – roughly 16 times finer than typical satellite imagery. It converts that imagery into survey-grade property, parcel, and infrastructure intelligence used for insurance underwriting, catastrophe response, infrastructure planning, digital mapping, location intelligence, and AI applications. Vexcel generated revenue of more than $140 million in the last twelve months, up over 30% the previous twelve months, on recurring multi-year data contracts, with an Adjusted EBITDA margin of approximately 20%. “Since 1989, CoStar Group has deployed thousands of researchers in vehicles driving tens of millions of miles across hundreds of cities on multiple continents to find, document and photograph real estate, tenants, and construction,” said Andy Florance, Founder and Chief Executive Officer of CoStar Group. “Since then, we have inspected and photographed millions of properties. This direct observation and capture of on-the-ground facts has differentiated CoStar Group from its competitors, making us the leading CRE information solution in the world.” “Rapid technology advances in aerial photography and lidar are enabling Vexcel to produce extremely high-resolution images and survey-grade measurements of land, houses, office buildings, industrial properties, retail properties, apartment buildings, construction sites, and other infrastructure in the built environment. Combining these high-resolution images with the rapidly evolving capabilities of AI to semantically recognize and extract information and features from properties, we believe we can capture hundreds of data fields per property, across the approximately half a billion properties captured by Vexcel, creating a transformative, new, ultra-low-

cost proprietary data source that makes CoStar even more valuable, more accurate, and timelier.” CoStar Group also believes that it can accelerate Vexcel’s revenue growth by growing its sales force and leveraging CoStar Group’s 2,000 salespeople who already have existing relationships with many of Vexcel’s best prospects. “For decades, Vexcel has invested in creating highly accurate geospatial data that customers rely on every day,” said Erik Jorgensen, Chief Executive Officer of Vexcel. “By joining CoStar Group, we gain the scale, technology, and resources to broaden our reach, accelerate innovation, and deliver even greater value to customers worldwide.” Following the closing, Vexcel will continue to operate its data program under the Vexcel brand and to serve its customers and partners worldwide. Erik Jorgensen and the Vexcel leadership team will continue to lead the business. CoStar Group expects to fund the acquisition from cash on hand and its existing revolving credit facility. The acquisition is expected to be accretive to Adjusted EPS in the first full year of ownership and to close in the first quarter of 2027 subject to customary closing conditions and regulatory approvals. Goldman Sachs served as exclusive financial advisor and Latham & Watkins served as legal advisor to CoStar Group. William Blair served as exclusive financial advisor and Snell & Wilmer served as legal advisor to Vexcel. ### About CoStar Group CoStar Group (NASDAQ: CSGP) is a leading global provider of online real estate marketplaces, information, analyt

2026
Q2

Q2 2026 Earnings

8-K SELL

Jul 28, 2026 · 66% conf.

AI Prediction SELL

1D

-5.90%

$28.54

Act: -1.32%

5D

-5.20%

$28.75

20D

-8.24%

$27.83

Price: $30.33 Prob +5D: 17% AUC: 1.000
0001057352-26-000061

csgp-20260728

0001057352false00010573522026-07-282026-07-28

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the

Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): July 28, 2026

COSTAR GROUP, INC.

(Exact name of registrant as specified in its charter)

Delaware 0-24531 52-2091509

(State or other jurisdiction of incorporation or organization) (Commission File Number) (I.R.S. Employer Identification No.)

1201 Wilson Blvd.Arlington,VA22209

(Address of principal executive offices)(Zip Code)

Registrant’s telephone number, including area code: (202) 346-6500

Not Applicable

(Former name or former address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading SymbolName of each exchange on which registered

Common Stock ($0.01 par value)CSGPNasdaq Global Select Market

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging Growth Company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.

o

Item 2.02 Results of Operations and Financial Condition.

On July 28, 2026, CoStar Group, Inc. (“CoStar Group” or the “Company”) announced its financial and operating results for the quarter ended June 30, 2026. The full text of the press release (the “Press Release”) issued in connection with the announcement is furnished as Exhibit 99.1 to this Current Report on Form 8-K.

The information contained in this Item 2.02 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 amended, or otherwise subject to the liabilities of that Section or Sections 11 and 12(a)(2) of the Securities Act of 1933, as amended, nor shall it be deemed incorporated by reference into any reports or filings with the Securities and Exchange Commission (the "SEC"), whether made before or after the date hereof, except as expressly set forth by specific reference in such a filing.

Item 9.01     Financial Statements and Exhibits.

Exhibit No.Description

99.1

CoStar Group, Inc. Press Release dated July 28, 2026

104Cover Page Interactive Data File (formatted as inline XBRL and contained in Exhibit 101).

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

COSTAR GROUP, INC.

By: /s/ Christian M. Lown

Date:July 28, 2026Name: Christian M. Lown

Title: Chief Financial Officer

2026
Q1

Q1 2026 Earnings

8-K SELL

Apr 28, 2026 · 100% conf.

AI Prediction SELL

1D

-7.53%

$33.25

Act: -4.95%

5D

-6.92%

$33.47

Act: -2.95%

20D

-9.88%

$32.41

Act: -10.12%

Price: $35.96 Prob +5D: 0% AUC: 1.000
0001057352-26-000030

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2025
Q4

Q4 2025 Earnings

8-K BUY

Feb 24, 2026 · 100% conf.

AI Prediction BUY

1D

+7.30%

$52.74

Act: -9.05%

5D

+8.52%

$53.34

Act: -4.82%

20D

+9.99%

$54.06

Price: $49.15 Prob +5D: 100% AUC: 1.000
0001057352-26-000012

csgp-202602240001057352false00010573522026-02-242026-02-24

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): February 24, 2026

COSTAR GROUP, INC.

(Exact name of registrant as specified in its charter)

Delaware 0-2453152-2091509

(State or other jurisdiction of incorporation or organization) (Commission File Number)(I.R.S. Employer Identification No.)

1201 Wilson Blvd.Arlington,VA22209 (Address of principal executive offices)(Zip Code)

Registrant’s telephone number, including area code: (202) 346-6500

Not Applicable (Former name or former address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading SymbolName of each exchange on which registered Common Stock ($0.01 par value)CSGPNasdaq Global Select Market

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging Growth Company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. o

Item 2.02     Results of Operations and Financial Condition.

On February 24, 2026, CoStar Group, Inc. (“CoStar Group” or the “Company”) announced its financial and operating results for the quarter and year ended December 31, 2025. The full text of the press release (the “Press Release”) issued in connection with the announcement is furnished as Exhibit 99.1 to this Current Report on Form 8-K.

The information contained in this Item 2.02 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 amended, or otherwise subject to the liabilities of that Section or Sections 11 and 12(a)(2) of the Securities Act of 1933, as amended, nor shall it be deemed incorporated by reference into any reports or filings with the Securities and Exchange Commission (the "SEC"), whether made before or after the date hereof, except as expressly set forth by specific reference in such a filing.

Item 7.01    Regulation FD Disclosure.

The Company intends to utilize its corporate website as a channel of distribution for material company information, including, but not limited to, the posting of investor presentations from time to time. For more information, visit investors.costargroup.com. The information posted on the Company's website is not incorporated by reference into this Current Report on Form 8-K or in any other report or document the Company files with the SEC.

Item 9.01     Financial Statements and Exhibits.

Exhibit No.Description 99.1 CoStar Group, Inc. Press Release Dated February 24, 2026.

104Cover Page Interactive Data File (formatted as inline XBRL and contained in Exhibit 101).

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

COSTAR GROUP, INC.

By: /s/ Christian M. Lown Date:February 24, 2026Name: Christian M. Lown Title: Chief Financial Officer

2025
Q3

Q3 2025 Earnings

8-K

Oct 28, 2025

0001057352-25-000116

csgp-202510280001057352false00010573522025-10-282025-10-28

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): October 28, 2025

COSTAR GROUP, INC.

(Exact name of registrant as specified in its charter)

Delaware 0-2453152-2091509

(State or other jurisdiction of incorporation or organization) (Commission File Number)(I.R.S. Employer Identification No.)

1201 Wilson Blvd.Arlington,VA22209 (Address of principal executive offices)(Zip Code)

Registrant’s telephone number, including area code: (202) 346-6500

Not Applicable (Former name or former address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading SymbolName of each exchange on which registered Common Stock ($0.01 par value)CSGPNasdaq Global Select Market

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging Growth Company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. o

Item 2.02     Results of Operations and Financial Condition.

On October 28, 2025, CoStar Group, Inc. (“CoStar Group” or the “Company”) announced its financial and operating results for the quarter ended September 30, 2025. The full text of the press release (the “Press Release”) issued in connection with the announcement is furnished as Exhibit 99.1 to this Current Report on Form 8-K.

The information contained in this Item 2.02 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 amended, or otherwise subject to the liabilities of that Section or Sections 11 and 12(a)(2) of the Securities Act of 1933, as amended, nor shall it be deemed incorporated by reference into any reports or filings with the Securities and Exchange Commission (the "SEC"), whether made before or after the date hereof, except as expressly set forth by specific reference in such a filing.

Item 7.01    Regulation FD Disclosure.

The Company intends to utilize its corporate website as a channel of distribution for material company information, including, but not limited to, the posting of investor presentations from time to time. For more information, visit investors.costargroup.com. The information posted on the Company's website is not incorporated by reference into this Current Report on Form 8-K or in any other report or document the Company files with the SEC.

Item 9.01     Financial Statements and Exhibits.

Exhibit No.Description 99.1 CoStar Group, Inc. Press Release Dated October 28, 2025.

104Cover Page Interactive Data File (formatted as inline XBRL and contained in Exhibit 101).

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

COSTAR GROUP, INC.

By: /s/ Christian M. Lown Date:October 28, 2025Name: Christian M. Lown Title: Chief Financial Officer

2025
Q2

Q2 2025 Earnings

8-K

Jul 22, 2025

0001057352-25-000095

csgp-202507220001057352false00010573522025-07-222025-07-22

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): July 22, 2025

COSTAR GROUP, INC.

(Exact name of registrant as specified in its charter)

Delaware 0-2453152-2091509

(State or other jurisdiction of incorporation or organization) (Commission File Number)(I.R.S. Employer Identification No.)

1201 Wilson Blvd.Arlington,VA22209 (Address of principal executive offices)(Zip Code)

Registrant’s telephone number, including area code: (202) 346-6500

Not Applicable (Former name or former address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading SymbolName of each exchange on which registered Common Stock ($0.01 par value)CSGPNasdaq Global Select Market

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging Growth Company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. o

Item 2.02     Results of Operations and Financial Condition.

On July 22, 2025, CoStar Group, Inc. (“CoStar Group” or the “Company”) announced its financial and operating results for the quarter ended June 30, 2025. The full text of the press release (the “Press Release”) issued in connection with the announcement is furnished as Exhibit 99.1 to this Current Report on Form 8-K.

The information contained in this Item 2.02 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 amended, or otherwise subject to the liabilities of that Section or Sections 11 and 12(a)(2) of the Securities Act of 1933, as amended, nor shall it be deemed incorporated by reference into any reports or filings with the Securities and Exchange Commission (the "SEC"), whether made before or after the date hereof, except as expressly set forth by specific reference in such a filing.

Item 7.01    Regulation FD Disclosure.

The Company intends to utilize its corporate website as a channel of distribution for material company information, including, but not limited to, the posting of investor presentations from time to time. For more information, visit investors.costargroup.com. The information posted on the Company's website is not incorporated by reference into this Current Report on Form 8-K or in any other report or document the Company files with the SEC.

Item 9.01     Financial Statements and Exhibits.

Exhibit No.Description 99.1 CoStar Group, Inc. Press Release Dated July 22, 2025.

104Cover Page Interactive Data File (formatted as inline XBRL and contained in Exhibit 101).

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

COSTAR GROUP, INC.

By: /s/ Christian M. Lown Date:July 22, 2025Name: Christian M. Lown Title: Chief Financial Officer

2025
Q1

Q1 2025 Earnings

8-K

Apr 29, 2025

0001057352-25-000063

csgp-202504290001057352false00010573522025-04-292025-04-29

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): April 29, 2025

COSTAR GROUP, INC.

(Exact name of registrant as specified in its charter)

Delaware 0-2453152-2091509

(State or other jurisdiction of incorporation or organization) (Commission File Number)(I.R.S. Employer Identification No.)

1201 Wilson Blvd.Arlington,VA22209 (Address of principal executive offices)(Zip Code)

Registrant’s telephone number, including area code: (202) 346-6500

Not Applicable (Former name or former address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading SymbolName of each exchange on which registered Common Stock ($0.01 par value)CSGPNasdaq Global Select Market

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging Growth Company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. o

Item 2.02     Results of Operations and Financial Condition.

On April 29, 2025, CoStar Group, Inc. (“CoStar Group” or the “Company”) announced its financial and operating results for the quarter ended March 31, 2025. The full text of the press release (the “Press Release”) issued in connection with the announcement is furnished as Exhibit 99.1 to this Current Report on Form 8-K.

The information contained in this Item 2.02 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 amended, or otherwise subject to the liabilities of that Section or Sections 11 and 12(a)(2) of the Securities Act of 1933, as amended, nor shall it be deemed incorporated by reference into any reports or filings with the Securities and Exchange Commission, whether made before or after the date hereof, except as expressly set forth by specific reference in such a filing.

Item 9.01     Financial Statements and Exhibits.

Exhibit No.Description 99.1 CoStar Group, Inc. Press Release Dated April 29, 2025.

104Cover Page Interactive Data File (formatted as inline XBRL and contained in Exhibit 101).

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

COSTAR GROUP, INC.

By: /s/ Christian M. Lown Date:April 29, 2025Name: Christian M. Lown Title: Chief Financial Officer

2024
Q4

Q4 2024 Earnings

8-K

Feb 18, 2025

0001057352-25-000004

csgp-202502180001057352false00010573522025-02-182025-02-18

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): February 18, 2025

COSTAR GROUP, INC.

(Exact name of registrant as specified in its charter)

Delaware 0-2453152-2091509

(State or other jurisdiction of incorporation or organization) (Commission File Number)(I.R.S. Employer Identification No.)

1201 Wilson Blvd.,Arlington,VA22209 (Address of principal executive offices)(Zip Code)

Registrant’s telephone number, including area code: (202) 346-6500

Not Applicable (Former name or former address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading SymbolName of each exchange on which registered Common Stock ($0.01 par value)CSGPNasdaq Global Select Market

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging Growth Company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. o

Item 2.02     Results of Operations and Financial Condition.

On February 18, 2025, CoStar Group, Inc. (“CoStar Group” or the “Company”) announced its financial and operating results for the quarter and year ended December 31, 2024. The full text of the press release (the “Press Release”) issued in connection with the announcement is furnished as Exhibit 99.1 to this Current Report on Form 8-K.

The information contained in this Item 2.02 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 amended (the “Exchange Act”), or otherwise subject to the liabilities of that Section or Sections 11 and 12(a)(2) of the Securities Act of 1933, as amended (the “Securities Act”), nor shall it be deemed incorporated by reference into any reports or filings with the Securities and Exchange Commission (the “SEC”), whether made before or after the date hereof, except as expressly set forth by specific reference in such a filing.

Item 7.01    Regulation FD Disclosure.

CoStar Group hereby furnishes the presentation (the “Investor Presentation”) that the Company intends to use from time to time on or after February 18, 2025. CoStar Group may use the Investor Presentation with investors, analysts, lenders, insurers, vendors, clients, employees and others. The Investor Presentation is furnished herewith as Exhibit 99.2 and also will be made available on the Company’s website at costargroup.com.

The information contained in the Investor Presentation is summary information that should be considered in the context of the Company’s filings with the SEC and other public announcements that the Company may make, by press release or otherwise, from time to time. The Investor Presentation is current as of February 18, 2025. To the extent that estimates, targets or other forward-looking statements are included in the Investor Presentation, the Company specifically disclaims any duty or obligation to publicly update or revise such information, except as required by applicable law.

The information contained in this Item 7.01 and the Investor Presentation shall be considered “furnished” and shall not be deemed “filed” for purposes of Section 18 of the Exchange Act or otherwise subject to the liabilities of that Section or Sections 11 and 12(a)(2) of the Securities Act, nor shall it be deemed incorporated by reference into any reports or filings with the SEC, whether made before or after the date hereof, except as expressly set forth by specific reference in such a filing.

Item 9.01     Financial Statements and Exhibits.

(d)     Exhibits.

Exhibit No.Description 99.1 CoStar Group, Inc. Press Release Dated February 18, 2025.

99.2 CoStar Group, Inc. Investor Presentation Dated February 18, 2025.

104Cover Page Interactive Data File (formatted as inline XBRL and contained in Exhibit 101).

SIGNATURES

Pursuant to the requiremen

2024
Q3

Q3 2024 Earnings

8-K

Oct 22, 2024

0001057352-24-000122

csgp-202410220001057352false00010573522024-10-222024-10-22

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): October 22, 2024

COSTAR GROUP, INC.

(Exact name of registrant as specified in its charter)

Delaware 0-2453152-2091509

(State or other jurisdiction of incorporation or organization) (Commission File Number)(I.R.S. Employer Identification No.)

1331 L Street, NW,Washington,DC20005 (Address of principal executive offices)(Zip Code)

Registrant’s telephone number, including area code: (202) 346-6500

Not Applicable (Former name or former address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading SymbolName of each exchange on which registered Common Stock ($0.01 par value)CSGPNasdaq Global Select Market

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging Growth Company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. o

Item 2.02     Results of Operations and Financial Condition.

On October 22, 2024, CoStar Group, Inc. ("CoStar Group" or the "Company") announced its financial and operating results for the quarter ended September 30, 2024. The full text of the press release (the “Press Release”) issued in connection with the announcement is furnished as Exhibit 99.1 to this Current Report on Form 8-K.

The information contained in this Item 2.02 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 amended (the "Exchange Act"), or otherwise subject to the liabilities of that Section or Sections 11 and 12(a)(2) of the Securities Act of 1933, as amended (the "Securities Act"), nor shall it be deemed incorporated by reference into any reports or filings with the Securities and Exchange Commission (the "SEC"), whether made before or after the date hereof, except as expressly set forth by specific reference in such a filing.

Item 7.01    Regulation FD Disclosure.

CoStar hereby furnishes the presentation (the “Investor Presentation”) that the Company intends to use from time to time on or after October 22, 2024. CoStar may use the Investor Presentation with investors, analysts, lenders, insurers, vendors, clients, employees and others. The Investor Presentation is furnished herewith as Exhibit 99.2 and also will be made available on the Company’s website at costargroup.com.

The information contained in the Investor Presentation is summary information that should be considered in the context of the Company’s filings with the SEC and other public announcements that the Company may make, by press release or otherwise, from time to time. The Investor Presentation is current as of October 22, 2024. To the extent that estimates, targets or other forward-looking statements are included in the Investor Presentation, the Company specifically disclaims any duty or obligation to publicly update or revise such information.

The information contained in this Item 7.01 and the Investor Presentation shall be considered “furnished” and shall not be deemed “filed” for purposes of Section 18 of the Exchange Act or otherwise subject to the liabilities of that Section or Sections 11 and 12(a)(2) of the Securities Act, nor shall it be deemed incorporated by reference into any reports or filings with the SEC, whether made before or after the date hereof, except as expressly set forth by specific reference in such a filing.

Item 9.01     Financial Statements and Exhibits.

Exhibit No.Description 99.1 CoStar Group, Inc. Press Release dated October 22, 2024.

99.2 CoStar Group, Inc. Investor Presentation dated October 22, 2024.

104Cover Page Interactive Data File (formatted as inline XBRL and contained in Exhibit 101).

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this rep

2024
Q2

Q2 2024 Earnings

8-K

Jul 23, 2024

0001193125-24-182891

8-K

false 0001057352 0001057352 2024-07-23 2024-07-23

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 23, 2024

COSTAR GROUP, INC.

(Exact name of registrant as specified in its charter)

Delaware

0-24531

52-2091509

(State or other jurisdiction of incorporation or organization)

(Commission File Number)

(I.R.S. Employer Identification No.)

1331 L Street, NW, Washington, DC

20005

(Address of principal executive offices)

(Zip Code) Registrant’s telephone number, including area code: (202) 346-6500 Not Applicable (Former name or former address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class

Trading Symbol

Name of each exchange on which registered

Common Stock ($0.01 par value)

CSGP

Nasdaq Global Select Market Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging Growth Company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 2.02 Results of Operations and Financial Condition.

On July 23, 2024, CoStar Group, Inc. announced its financial and operating results for the quarter ended June 30, 2024. The full text of the press release (the “Press Release”) issued in connection with the announcement is furnished as Exhibit 99.1 to this Current Report on Form 8-K. The information contained in this Item 2.02 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 amended, or otherwise subject to the liabilities of that Section or Sections 11 and 12(a)(2) of the Securities Act of 1933, as amended, nor shall it be deemed incorporated by reference into any reports or filings with the Securities and Exchange Commission, whether made before or after the date hereof, except as expressly set forth by specific reference in such a filing.

Item 7.01 Regulation FD Disclosure.

CoStar hereby furnishes the presentation (the “Investor Presentation”) that the Company intends to use from time to time on or after July 23, 2024. CoStar may use the Investor Presentation with investors, analysts, lenders, insurers, vendors, clients, employees and others. The Investor Presentation is furnished herewith as Exhibit 99.2 and also will be made available on the Company’s website at costargroup.com. The information contained in the Investor Presentation is summary information that should be considered in the context of the Company’s filings with the SEC and other public announcements that the Company may make, by press release or otherwise, from time to time. The Investor Presentation is current as of July 23, 2024. To the extent that estimates, targets or other forward-looking statements are included in the Investor Presentation, the Company specifically disclaims any duty or obligation to publicly update or revise such information. The information contained in this Item 7.01 and the Investor Presentation shall be considered “furnished” and shall not be deemed “filed” for purposes of Section 18 of the Exchange Act or otherwise subject to the liabilities of that Section or Sections 11 and 12(a)(2) of the Securities Act, nor shall it be deemed incorporated by reference into any reports or filings with the SEC, whether made before or after the date hereof, except as expressly set forth by specific reference in such a filing.

Item 9.01 Financial Statements and Exhibits.

Exhibit No.

Description

99.1

CoStar Group, Inc. Press Release dated July 23, 2024.

99.2

CoStar Group, Inc. Investor Presentation dated July 23, 2024.

104

Cover Page Interactive Data File (formatted as inline XBRL and contained in Exhibit 101).

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly aut

2024
Q1

Q1 2024 Earnings

8-K

Apr 23, 2024

0001193125-24-107185

8-K

false 0001057352 0001057352 2024-04-23 2024-04-23

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 23, 2024

COSTAR GROUP, INC.

(Exact name of registrant as specified in its charter)

Delaware

0-24531

52-2091509

(State or other jurisdiction of incorporation or organization)

(Commission File Number)

(I.R.S. Employer Identification No.)

1331 L Street, NW, Washington, DC

20005

(Address of principal executive offices)

(Zip Code) Registrant’s telephone number, including area code: (202) 346-6500 Not Applicable (Former name or former address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class

Trading Symbol

Name of each exchange on which registered

Common Stock ($0.01 par value)

CSGP

Nasdaq Global Select Market Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging Growth Company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 2.02 Results of Operations and Financial Condition.

On April 23, 2024, CoStar Group, Inc. (“CoStar” or the “Company”) announced its financial and operating results for the quarter ended March 31, 2024. The full text of the press release (the “Press Release”) issued in connection with the announcement is furnished as Exhibit 99.1 to this Current Report on Form 8-K. The information contained in this Item 2.02 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 amended (the “Exchange Act”), or otherwise subject to the liabilities of that Section or Sections 11 and 12(a)(2) of the Securities Act of 1933, as amended (the “Securities Act”), nor shall it be deemed incorporated by reference into any reports or filings with the Securities and Exchange Commission (the “SEC”), whether made before or after the date hereof, except as expressly set forth by specific reference in such a filing.

Item 7.01 Regulation FD Disclosure.

CoStar hereby furnishes the presentation (the “Investor Presentation”) that the Company intends to use from time to time on or after April 23, 2024. CoStar may use the Investor Presentation with investors, analysts, lenders, insurers, vendors, clients, employees and others. The Investor Presentation is furnished herewith as Exhibit 99.2 and also will be made available on the Company’s website at costargroup.com. The information contained in the Investor Presentation is summary information that should be considered in the context of the Company’s filings with the SEC and other public announcements that the Company may make, by press release or otherwise, from time to time. The Investor Presentation is current as of April 23, 2024. To the extent that estimates, targets or other forward-looking statements are included in the Investor Presentation, the Company specifically disclaims any duty or obligation to publicly update or revise such information. The information contained in this Item 7.01 and the Investor Presentation shall be considered “furnished” and shall not be deemed “filed” for purposes of Section 18 of the Exchange Act or otherwise subject to the liabilities of that Section or Sections 11 and 12(a)(2) of the Securities Act, nor shall it be deemed incorporated by reference into any reports or filings with the SEC, whether made before or after the date hereof, except as expressly set forth by specific reference in such a filing.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits.

Exhibit No.

Description

99.1

CoStar Group, Inc. Press Release Dated April 23, 2024.

99.2

CoStar Group, Inc. Investor Presentation Dated April 23, 2024.

104

Cover Page Interactive Data File (formatted as inline XBRL and contained in Exhibit 101).

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934,

2023
Q4

Q4 2023 Earnings

8-K

Feb 20, 2024

0001193125-24-040030

8-K

false 0001057352 0001057352 2024-02-20 2024-02-20

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 20, 2024

COSTAR GROUP, INC.

(Exact name of registrant as specified in its charter)

Delaware

0-24531

52-2091509

(State or other jurisdiction of incorporation or organization)

(Commission File Number)

(I.R.S. Employer Identification No.)

1331 L Street, NW, Washington, DC

20005

(Address of principal executive offices)

(Zip Code) Registrant’s telephone number, including area code: (202) 346-6500 Not Applicable (Former name or former address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class

Trading Symbol

Name of each exchange on which registered

Common Stock ($0.01 par value)

CSGP

Nasdaq Global Select Market Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging Growth Company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 2.02 Results of Operations and Financial Condition.

On February 20, 2024, CoStar Group, Inc. (“CoStar” or the “Company”) announced its financial and operating results for the quarter and year ended December 31, 2023. The full text of the press release (the “Press Release”) issued in connection with the announcement is furnished as Exhibit 99.1 to this Current Report on Form 8-K. The information contained in this Item 2.02 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 amended (the “Exchange Act”), or otherwise subject to the liabilities of that Section or Sections 11 and 12(a)(2) of the Securities Act of 1933, as amended (the “Securities Act”), nor shall it be deemed incorporated by reference into any reports or filings with the Securities and Exchange Commission (the “SEC”), whether made before or after the date hereof, except as expressly set forth by specific reference in such a filing.

Item 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

On February 20, 2024, Scott Wheeler notified the Company of his intention to retire from his position as Chief Financial Officer. Mr. Wheeler has served as the Company’s Chief Financial Officer since 2016, and the Company extends its gratitude to Mr. Wheeler for his years of service and contributions to the Company. Mr. Wheeler’s decision to step down is not the result of any disagreement with the Company on any matter relating to the Company’s operations, policies, or practices. The Company plans to initiate a process to identify a successor. Mr. Wheeler plans to continue as Chief Financial Officer through June 15, 2024 to help facilitate the transition of his responsibilities.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits.

Exhibit No.

Description

99.1

CoStar Group, Inc. Press Release Dated February 20, 2024.

104

Cover Page Interactive Data File (formatted as inline XBRL and contained in Exhibit 101).

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

COSTAR GROUP, INC.

Date: February 20, 2024

By:

/s/ Scott T. Wheeler

Name:

Scott T. Wheeler

Title:

Chief Financial Officer

2023
Q3

Q3 2023 Earnings

8-K

Oct 24, 2023

0001193125-23-261675

Form 8-K

false 0001057352 0001057352 2023-10-24 2023-10-24

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 24, 2023

COSTAR GROUP, INC.

(Exact name of registrant as specified in its charter)

Delaware

0-24531

52-2091509

(State or other jurisdiction of incorporation or organization)

(Commission File Number)

(I.R.S. Employer Identification No.)

1331 L Street, NW, Washington, DC

20005

(Address of principal executive offices)

(Zip Code) Registrant’s telephone number, including area code: (202) 346-6500 Not Applicable (Former name or former address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class

Trading Symbol

Name of each exchange on which registered

Common Stock ($0.01 par value)

CSGP

Nasdaq Global Select Market Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging Growth Company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 2.02 Results of Operations and Financial Condition.

On October 24, 2023, CoStar Group, Inc. (“CoStar” or the “Company”) announced its financial and operating results for the quarter ended September 30, 2023. The full text of the press release (the “Press Release”) issued in connection with the announcement is furnished herewith as Exhibit 99.1. The information contained in this Item 2.02 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 amended (the “Exchange Act”), or otherwise subject to the liabilities of that Section or Sections 11 and 12(a)(2) of the Securities Act of 1933, as amended (the “Securities Act”), nor shall it be deemed incorporated by reference into any reports or filings with the Securities and Exchange Commission (“SEC”), whether made before or after the date hereof, except as expressly set forth by specific reference in such a filing.

Item 7.01 Regulation FD Disclosure.

CoStar hereby furnishes the presentation (the “Investor Presentation”) that the Company intends to use from time to time on or after October 24, 2023. CoStar may use the Investor Presentation with investors, analysts, lenders, insurers, vendors, clients, employees and others. The Investor Presentation is furnished herewith as Exhibit 99.2 and also will be made available on the Company’s website at costargroup.com. The information contained in the Investor Presentation is summary information that should be considered in the context of the Company’s filings with the SEC and other public announcements that the Company may make, by press release or otherwise, from time to time. The Investor Presentation is current as of October 24, 2023. To the extent that estimates, targets or other forward-looking statements are included in the Investor Presentation, the Company specifically disclaims any duty or obligation to publicly update or revise such information. The information contained in this Item 7.01 and the Investor Presentation shall be considered “furnished” and shall not be deemed “filed” for purposes of Section 18 of the Exchange Act or otherwise subject to the liabilities of that Section or Sections 11 and 12(a)(2) of the Securities Act, nor shall it be deemed incorporated by reference into any reports or filings with the SEC, whether made before or after the date hereof, except as expressly set forth by specific reference in such a filing.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits.

Exhibit No.

Description

99.1

CoStar Group, Inc. Press Release Dated October 24, 2023.

99.2

CoStar Group, Inc. Investor Presentation Dated October 24, 2023.

104

Cover Page Interactive Data File (formatted as inline XBRL and contained in Exhibit 101).

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to

2023
Q2

Q2 2023 Earnings

8-K

Jul 25, 2023

0001057352-23-000108

csgp-202307250001057352false00010573522023-07-252023-07-25

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): July 25, 2023

COSTAR GROUP, INC.

(Exact name of registrant as specified in its charter)

Delaware 0-2453152-2091509

(State or other jurisdiction of incorporation or organization) (Commission File Number)(I.R.S. Employer Identification No.)

1331 L Street, NW,Washington,DC20005 (Address of principal executive offices)(Zip Code)

Registrant’s telephone number, including area code: (202) 346-6500

Not Applicable (Former name or former address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below): ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading SymbolName of each exchange on which registered Common Stock ($0.01 par value)CSGPNasdaq Global Select Market

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging Growth Company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. o

Item 2.02     Results of Operations and Financial Condition.

On July 25, 2023, CoStar Group, Inc. announced its financial and operating results for the quarter ended June 30, 2023. The full text of the press release (the “Press Release”) issued in connection with the announcement is furnished as Exhibit 99.1 to this Current Report on Form 8-K.

The information contained in this Item 2.02 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 amended, or otherwise subject to the liabilities of that Section or Sections 11 and 12(a)(2) of the Securities Act of 1933, as amended, nor shall it be deemed incorporated by reference into any reports or filings with the Securities and Exchange Commission, whether made before or after the date hereof, except as expressly set forth by specific reference in such a filing.

Item 9.01     Financial Statements and Exhibits.

(d)     Exhibits.

Exhibit No.Description 99.1 CoStar Group, Inc. Press Release Dated July 25, 2023.

104Cover Page Interactive Data File (formatted as inline XBRL and contained in Exhibit 101).

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

COSTAR GROUP, INC.

By: Date:July 25, 2023/s/ Scott T. Wheeler

Name: Scott T. Wheeler Title: Chief Financial Officer

2023
Q1

Q1 2023 Earnings

8-K

Apr 25, 2023

0001057352-23-000072

csgp-202304250001057352false00010573522023-04-252023-04-25

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): April 25, 2023

COSTAR GROUP, INC.

(Exact name of registrant as specified in its charter)

Delaware 0-2453152-2091509

(State or other jurisdiction of incorporation or organization) (Commission File Number)(I.R.S. Employer Identification No.)

1331 L Street, NW,Washington,DC20005 (Address of principal executive offices)(Zip Code)

Registrant’s telephone number, including area code: (202) 346-6500

Not Applicable (Former name or former address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below): ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading SymbolName of each exchange on which registered Common Stock ($0.01 par value)CSGPNasdaq Global Select Market

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging Growth Company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. o

Item 2.02     Results of Operations and Financial Condition.

On April 25, 2023, CoStar Group, Inc. announced its financial and operating results for the quarter ended March 31, 2023. The full text of the press release (the “Press Release”) issued in connection with the announcement is furnished as Exhibit 99.1 to this Current Report on Form 8-K.

The information contained in this Item 2.02 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 amended, or otherwise subject to the liabilities of that Section or Sections 11 and 12(a)(2) of the Securities Act of 1933, as amended, nor shall it be deemed incorporated by reference into any reports or filings with the Securities and Exchange Commission, whether made before or after the date hereof, except as expressly set forth by specific reference in such a filing.

Item 9.01     Financial Statements and Exhibits.

(d)     Exhibits.

Exhibit No.Description 99.1 CoStar Group, Inc. Press Release Dated April 25, 2023.

104Cover Page Interactive Data File (formatted as inline XBRL and contained in Exhibit 101).

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

COSTAR GROUP, INC.

By: Date:April 25, 2023/s/ Scott T. Wheeler

Name: Scott T. Wheeler Title: Chief Financial Officer

2022
Q4

Q4 2022 Earnings

8-K

Feb 21, 2023

0001057352-23-000026

csgp-202302210001057352false00010573522023-02-212023-02-21

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): February 21, 2023

COSTAR GROUP, INC.

(Exact name of registrant as specified in its charter)

Delaware 0-2453152-2091509

(State or other jurisdiction of incorporation or organization) (Commission File Number)(I.R.S. Employer Identification No.)

1331 L Street, NW,Washington,DC20005 (Address of principal executive offices)(Zip Code)

Registrant’s telephone number, including area code: (202) 346-6500

Not Applicable (Former name or former address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below): ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading SymbolName of each exchange on which registered Common Stock ($0.01 par value)CSGPNasdaq Global Select Market

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging Growth Company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. o

Item 2.02     Results of Operations and Financial Condition.

On February 21, 2023, CoStar Group, Inc. announced its financial and operating results for the quarter and year ended December 31, 2022. The full text of the press release (the “Press Release”) issued in connection with the announcement is furnished as Exhibit 99.1 to this Current Report on Form 8-K.

The information contained in this Item 2.02 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 amended, or otherwise subject to the liabilities of that Section or Sections 11 and 12(a)(2) of the Securities Act of 1933, as amended, nor shall it be deemed incorporated by reference into any reports or filings with the Securities and Exchange Commission, whether made before or after the date hereof, except as expressly set forth by specific reference in such a filing.

Item 9.01     Financial Statements and Exhibits.

(d)     Exhibits.

Exhibit No.Description 99.1 CoStar Group, Inc. Press Release Dated February 21, 2023.

104Cover Page Interactive Data File (formatted as inline XBRL and contained in Exhibit 101).

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

COSTAR GROUP, INC.

By: Date:February 21, 2023/s/ Scott T. Wheeler

Name: Scott T. Wheeler Title: Chief Financial Officer

2022
Q3

Q3 2022 Earnings

8-K

Oct 25, 2022

0001057352-22-000115

csgp-202210250001057352false00010573522022-10-252022-10-25

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): October 25, 2022

COSTAR GROUP, INC.

(Exact name of registrant as specified in its charter)

Delaware 0-2453152-2091509

(State or other jurisdiction of incorporation or organization) (Commission File Number)(I.R.S. Employer Identification No.)

1331 L Street, NW,Washington,DC20005 (Address of principal executive offices)(Zip Code)

Registrant’s telephone number, including area code: (202) 346-6500

Not Applicable (Former name or former address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below): ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading SymbolName of each exchange on which registered Common Stock ($0.01 par value)CSGPNasdaq Global Select Market

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging Growth Company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. o

Item 2.02     Results of Operations and Financial Condition.

On October 25, 2022, CoStar Group, Inc. announced its financial and operating results for the quarter ended September 30, 2022. The full text of the press release (the “Press Release”) issued in connection with the announcement is furnished as Exhibit 99.1 to this Current Report on Form 8-K.

The information contained in this Item 2.02 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 amended, or otherwise subject to the liabilities of that Section or Sections 11 and 12(a)(2) of the Securities Act of 1933, as amended, nor shall it be deemed incorporated by reference into any reports or filings with the Securities and Exchange Commission, whether made before or after the date hereof, except as expressly set forth by specific reference in such a filing.

Item 9.01     Financial Statements and Exhibits.

(d)     Exhibits.

Exhibit No.Description 99.1 CoStar Group, Inc. Press Release Dated October 25, 2022.

104Cover Page Interactive Data File (formatted as inline XBRL and contained in Exhibit 101).

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

COSTAR GROUP, INC.

By: Date:October 25, 2022/s/ Scott T. Wheeler

Name: Scott T. Wheeler Title: Chief Financial Officer

2022
Q2

Q2 2022 Earnings

8-K

Jul 26, 2022

0001057352-22-000081

csgp-202207260001057352false00010573522022-07-262022-07-26

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): July 26, 2022

COSTAR GROUP, INC.

(Exact name of registrant as specified in its charter)

Delaware 0-2453152-2091509

(State or other jurisdiction of incorporation or organization) (Commission File Number)(I.R.S. Employer Identification No.)

1331 L Street, NW,Washington,DC20005 (Address of principal executive offices)(Zip Code)

Registrant’s telephone number, including area code: (202) 346-6500

Not Applicable (Former name or former address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below): ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading SymbolName of each exchange on which registered Common Stock ($0.01 par value)CSGPNasdaq Global Select Market

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging Growth Company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. o

Item 2.02     Results of Operations and Financial Condition.

On July 26, 2022, CoStar Group, Inc. announced its financial and operating results for the quarter ended June 30, 2022. The full text of the press release (the “Press Release”) issued in connection with the announcement is furnished as Exhibit 99.1 to this Current Report on Form 8-K.

The information contained in this Item 2.02 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 amended, or otherwise subject to the liabilities of that Section or Sections 11 and 12(a)(2) of the Securities Act of 1933, as amended, nor shall it be deemed incorporated by reference into any reports or filings with the Securities and Exchange Commission, whether made before or after the date hereof, except as expressly set forth by specific reference in such a filing.

Item 9.01     Financial Statements and Exhibits.

(d)     Exhibits.

Exhibit No.Description 99.1 CoStar Group, Inc. Press Release Dated July 26, 2022.

104Cover Page Interactive Data File (formatted as inline XBRL and contained in Exhibit 101).

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

COSTAR GROUP, INC.

By: Date:July 26, 2022/s/ Scott T. Wheeler

Name: Scott T. Wheeler Title: Chief Financial Officer

2022
Q1

Q1 2022 Earnings

8-K

Apr 26, 2022

0001057352-22-000050

csgp-202204260001057352false00010573522022-04-262022-04-26

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): April 26, 2022

COSTAR GROUP, INC.

(Exact name of registrant as specified in its charter)

Delaware 0-2453152-2091509

(State or other jurisdiction of incorporation or organization) (Commission File Number)(I.R.S. Employer Identification No.)

1331 L Street, NW,Washington,DC20005 (Address of principal executive offices)(Zip Code)

Registrant’s telephone number, including area code: (202) 346-6500

Not Applicable (Former name or former address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below): ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading SymbolName of each exchange on which registered Common Stock ($0.01 par value)CSGPNasdaq Global Select Market

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. o

Item 2.02.     Results of Operations and Financial Condition.

On April 26, 2022, CoStar Group, Inc. announced its financial results for the quarter ended March 31, 2022. The full text of the press release (the “Press Release”) issued in connection with the announcement is attached as Exhibit 99.1 to this Current Report on Form 8-K.

The information contained in the Press Release shall be considered “furnished” pursuant to this Current Report on Form 8-K and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that Section or Sections 11 and 12(a)(2) of the Securities Act of 1933, as amended, nor shall it be deemed incorporated by reference into any of the Registrant’s reports or filings with the Securities and Exchange Commission, whether made before or after the date hereof, except as expressly set forth by specific reference in such a filing.

Item 9.01     Financial Statements and Exhibits.

(d)     List of Exhibits.

Exhibit No.Description 99.1 CoStar Group, Inc. Press Release Dated April 26, 2022.

104The cover page from this Current Report on Form 8-K, formatted as Inline XBRL.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

COSTAR GROUP, INC.

By: Date:April 26, 2022/s/ Scott T. Wheeler

Name: Scott T. Wheeler Title: Chief Financial Officer

2021
Q4

Q4 2021 Earnings

8-K

Feb 22, 2022

0001057352-22-000022

csgp-202202220001057352false00010573522022-02-222022-02-22

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): February 22, 2022

COSTAR GROUP, INC.

(Exact name of registrant as specified in its charter)

Delaware 0-2453152-2091509

(State or other jurisdiction of incorporation or organization) (Commission File Number)(I.R.S. Employer Identification No.)

1331 L Street, NW,Washington,DC20005 (Address of principal executive offices)(Zip Code)

Registrant’s telephone number, including area code: (202) 346-6500

Not Applicable (Former name or former address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below): ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading SymbolName of each exchange on which registered Common Stock ($0.01 par value)CSGPNasdaq Global Select Market

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. o

Item 2.02.     Results of Operations and Financial Condition.

On February 22, 2022, CoStar Group, Inc. announced its financial results for the quarter and year ended December 31, 2021. The full text of the press release (the “Press Release”) issued in connection with the announcement is attached as Exhibit 99.1 to this Current Report on Form 8-K.

The information contained in the Press Release shall be considered “furnished” pursuant to this Current Report on Form 8-K and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that Section or Sections 11 and 12(a)(2) of the Securities Act of 1933, as amended, nor shall it be deemed incorporated by reference into any of the Registrant’s reports or filings with the Securities and Exchange Commission, whether made before or after the date hereof, except as expressly set forth by specific reference in such a filing.

Item 9.01     Financial Statements and Exhibits.

(d)     List of Exhibits.

Exhibit No.Description 99.1 CoStar Group, Inc. Press Release Dated February 22, 2022.

104The cover page from this Current Report on Form 8-K, formatted as Inline XBRL.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

COSTAR GROUP, INC.

By: Date:February 22, 2022/s/ Scott T. Wheeler

Name: Scott T. Wheeler Title: Chief Financial Officer

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