Official SEC submissions

CoStar Group SEC Filings

CoStar Group (CSGP) SEC filings, periodic reports and insider submissions.

Direct answer

CoStar Group's latest SEC filing is 8-K.

It was filed on August 21, 2026, and 40 recent filings are available.

Each row links directly to the SEC document and filing index.

Official SEC EDGAR submissions

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Recent SEC filings

8-K

Current report

Filed: 2026-08-21

Report date: 2026-08-21

8-K

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Insider transaction

Filed: 2026-08-10

Report date: 2026-08-07

FORM 4

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Insider transaction

Filed: 2026-08-10

Report date: 2026-08-05

FORM 4

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144

Planned securities sale

Filed: 2026-08-05

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Insider transaction

Filed: 2026-08-05

Report date: 2026-08-04

FORM 4

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Insider transaction

Filed: 2026-08-04

Report date: 2026-07-31

FORM 4

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Insider transaction

Filed: 2026-08-04

Report date: 2026-07-31

FORM 4

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Insider transaction

Filed: 2026-08-04

Report date: 2026-08-01

FORM 4

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10-Q

Periodic report

Filed: 2026-07-29

Report date: 2026-06-30

10-Q

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8-K

Current report

Filed: 2026-07-28

Report date: 2026-07-28

8-K

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8-K

Current report

Filed: 2026-07-13

Report date: 2026-07-07

8-K

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Insider transaction

Filed: 2026-07-06

Report date: 2026-07-01

FORM 4

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8-K

Current report

Filed: 2026-06-25

Report date: 2026-06-23

8-K

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Insider transaction

Filed: 2026-06-24

Report date: 2026-06-23

FORM 4

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Insider transaction

Filed: 2026-06-24

Report date: 2026-06-23

FORM 4

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Insider transaction

Filed: 2026-06-24

Report date: 2026-06-23

FORM 4

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Insider transaction

Filed: 2026-06-24

Report date: 2026-06-23

FORM 4

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Insider transaction

Filed: 2026-06-24

Report date: 2026-06-23

FORM 4

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Insider transaction

Filed: 2026-06-24

Report date: 2026-06-23

FORM 4

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Insider transaction

Filed: 2026-06-24

Report date: 2026-06-23

FORM 4

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Insider transaction

Filed: 2026-06-16

Report date: 2026-06-15

FORM 4

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8-K

Current report

Filed: 2026-05-29

Report date: 2026-05-28

8-K

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DEFA14A

Proxy statement

Filed: 2026-05-18

DEFA14A

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Insider transaction

Filed: 2026-05-04

Report date: 2026-05-01

FORM 4

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DEFA14A

Proxy statement

Filed: 2026-04-30

DEFA14A

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DEF 14A

Proxy statement

Filed: 2026-04-30

Report date: 2026-06-23

DEF 14A

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10-Q

Periodic report

Filed: 2026-04-29

Report date: 2026-03-31

10-Q

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8-K

Current report

Filed: 2026-04-28

Report date: 2026-04-28

8-K

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4/A

Insider transaction

Filed: 2026-03-17

Report date: 2026-03-15

FORM 4/A

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Insider transaction

Filed: 2026-03-17

Report date: 2026-03-15

FORM 4

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Insider transaction

Filed: 2026-03-17

Report date: 2026-03-15

FORM 4

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Insider transaction

Filed: 2026-03-17

Report date: 2026-03-15

FORM 4

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Insider transaction

Filed: 2026-03-17

Report date: 2026-03-15

FORM 4

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Insider transaction

Filed: 2026-03-17

Report date: 2026-03-15

FORM 4

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8-K

Current report

Filed: 2026-03-16

Report date: 2026-03-15

8-K

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Insider transaction

Filed: 2026-03-11

Report date: 2026-03-10

FORM 4

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Insider transaction

Filed: 2026-03-11

Report date: 2026-03-10

FORM 4

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Insider transaction

Filed: 2026-03-11

Report date: 2026-03-10

FORM 4

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Insider transaction

Filed: 2026-03-11

Report date: 2026-03-10

FORM 4

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Insider transaction

Filed: 2026-03-11

Report date: 2026-03-10

FORM 4

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Verified data

Recent filing categories: 5
Recent filings: 40
SEC CIK: 0001057352
Latest filing date: August 21, 2026

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