Costar CSGP SEC Filings

NASDAQ CSGP
$33.05 +1.24 (+3.90%)
At close: Oct 20, 2026 · 4:00 PM EDT
EDGAR Disclosures

SEC Filings

Source SEC EDGAR

Every SEC filing Costar Group, Inc. (CSGP) has made, as reported on EDGAR — annual and quarterly reports, current reports, insider transactions and ownership disclosures. Filter by form group, form type or period, and open any filing or its index directly.

Form Type
# Form Type Form Group Accession Date Filing Index
18-KCurrent Report0001057352-26-000072Aug 21, 2026 8:03 PM
24Insider Transaction0001472762-26-000012Aug 10, 2026 8:06 PM
34Insider Transaction0001351689-26-000005Aug 10, 2026 8:06 PM
4144Insider Transaction0001965301-26-000108Aug 5, 2026 5:58 PM
54Insider Transaction0001628280-26-052968Aug 5, 2026 1:27 PM
64Insider Transaction0002146463-26-000005Aug 4, 2026 9:24 PM
74Insider Transaction0001472762-26-000010Aug 4, 2026 9:24 PM
84Insider Transaction0001500076-26-000010Aug 4, 2026 9:24 PM
93Insider Transaction0002146463-26-000003Aug 4, 2026 9:22 PM
10S-8Prospectus0001193125-26-323889Jul 29, 2026 8:32 PM
1110-QQuarterly & Annual Report0001057352-26-000066Jul 29, 2026 8:06 PM
128-KCurrent Report0001057352-26-000061Jul 28, 2026 8:05 PM
138-KCurrent Report0001057352-26-000054Jul 13, 2026 9:06 PM
144Insider Transaction0001701994-26-000006Jul 6, 2026 8:05 PM
158-KCurrent Report0001057352-26-000048Jun 25, 2026 1:00 PM
164Insider Transaction0001497570-26-000011Jun 24, 2026 1:14 AM
174Insider Transaction0001449719-26-000002Jun 24, 2026 1:13 AM
184Insider Transaction0001351689-26-000002Jun 24, 2026 1:13 AM
194Insider Transaction0001742356-26-000002Jun 24, 2026 1:13 AM
204Insider Transaction0001390194-26-000002Jun 24, 2026 1:13 AM
214Insider Transaction0001796961-26-000004Jun 24, 2026 1:13 AM
224Insider Transaction0001628280-26-045326Jun 24, 2026 1:12 AM
234Insider Transaction0001472762-26-000008Jun 16, 2026 9:32 PM
248-KCurrent Report0001193125-26-246361May 29, 2026 8:05 AM
25SDOthers0001057352-26-000043May 20, 2026 8:01 PM
26DEFA14AOthers0001193125-26-227978May 18, 2026 8:30 AM
274Insider Transaction0001066061-26-000012May 4, 2026 10:01 AM
284Insider Transaction0001066061-26-000012May 4, 2026 10:01 AM
294Insider Transaction0001066061-26-000012May 4, 2026 10:01 AM
30ARSOthers0001193125-26-197274Apr 30, 2026 4:09 PM
31DEFA14AOthers0001193125-26-197269Apr 30, 2026 4:08 PM
32DEF 14AOthers0001193125-26-197205Apr 30, 2026 4:07 PM
33SCHEDULE 13GBeneficial Ownership Report0002100119-26-000343Apr 29, 2026 9:48 PM
3410-QQuarterly & Annual Report0001057352-26-000035Apr 29, 2026 8:09 PM
35SCHEDULE 13GBeneficial Ownership Report0002100121-26-000288Apr 29, 2026 4:51 PM
368-KCurrent Report0001057352-26-000030Apr 28, 2026 8:05 PM
373Insider Transaction0001628280-26-023270Apr 2, 2026 8:49 PM
383Insider Transaction0001628280-26-023270Apr 2, 2026 8:49 PM
393Insider Transaction0001628280-26-023270Apr 2, 2026 8:49 PM
40SCHEDULE 13GBeneficial Ownership Report0000102909-26-001079Mar 26, 2026 9:42 PM
414Insider Transaction0001758152-26-000008Mar 17, 2026 9:47 PM
424Insider Transaction0001758152-26-000008Mar 17, 2026 9:47 PM
434Insider Transaction0001758152-26-000008Mar 17, 2026 9:47 PM
444Insider Transaction0001717178-26-000008Mar 17, 2026 8:12 PM
454Insider Transaction0001717178-26-000008Mar 17, 2026 8:12 PM
464Insider Transaction0001717178-26-000008Mar 17, 2026 8:12 PM
474Insider Transaction0001758152-26-000006Mar 17, 2026 8:12 PM
484Insider Transaction0001758152-26-000006Mar 17, 2026 8:12 PM
494Insider Transaction0001758152-26-000006Mar 17, 2026 8:12 PM
504Insider Transaction0001925960-26-000008Mar 17, 2026 8:12 PM
...

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