COSTAR GROUP, INC. — All Filings
1,000 total filings on record
Public companies registered with the SEC are required to file periodic reports, disclosures, and notices throughout the year. The most important are the 10-K (annual report), 10-Q (quarterly report), and 8-K (material event notice). Use the filters below to narrow by form type.
All
10-K
10-K/A
10-K405
10-Q
10-Q/A
144
3
4
4/A
424B1
424B2
424B3
424B4
425
5
8-A12G
8-K
8-K/A
ARS
CORRESP
DEF 14A
DEFA14A
EFFECT
FWP
POS EX
PRE 14A
PX14A6G
RW
S-1
S-1/A
S-1MEF
S-3
S-3/A
S-3ASR
S-3MEF
S-4
S-4/A
S-8
SC 13D
SC 13D/A
SC 13G
SC 13G/A
SCHEDULE 13G/A
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| SCHEDULE 13G/A | — | 0000102909-26-001079 | Mar 26, 2026 | — |
| 4/A | FORM 4/A | 0001758152-26-000008 | Mar 17, 2026 | Mar 15, 2026 |
| 4 | FORM 4 | 0001717178-26-000008 | Mar 17, 2026 | Mar 15, 2026 |
| 4 | FORM 4 | 0001758152-26-000006 | Mar 17, 2026 | Mar 15, 2026 |
| 4 | FORM 4 | 0001925960-26-000008 | Mar 17, 2026 | Mar 15, 2026 |
| 3 | FORM 3 | 0001658784-26-000003 | Mar 17, 2026 | Mar 15, 2026 |
| 4 | FORM 4 | 0001925959-26-000006 | Mar 17, 2026 | Mar 15, 2026 |
| 4 | FORM 4 | 0001472762-26-000006 | Mar 17, 2026 | Mar 15, 2026 |
| 8-K | 8-K | 0001057352-26-000024 | Mar 16, 2026 | Mar 15, 2026 |
| 4 | FORM 4 | 0001472762-26-000004 | Mar 11, 2026 | Mar 10, 2026 |
| 4 | FORM 4 | 0001066061-26-000010 | Mar 11, 2026 | Mar 10, 2026 |
| 4 | FORM 4 | 0001701994-26-000004 | Mar 11, 2026 | Mar 10, 2026 |
| 4 | FORM 4 | 0001758152-26-000004 | Mar 11, 2026 | Mar 10, 2026 |
| 4 | FORM 4 | 0001925959-26-000004 | Mar 11, 2026 | Mar 10, 2026 |
| 4 | FORM 4 | 0001057352-26-000022 | Mar 9, 2026 | Mar 6, 2026 |
| 4 | FORM 4 | 0001701994-26-000002 | Mar 3, 2026 | Feb 27, 2026 |
| 4 | FORM 4 | 0001500076-26-000008 | Mar 3, 2026 | Feb 27, 2026 |
| 4 | FORM 4 | 0001066061-26-000008 | Mar 3, 2026 | Feb 27, 2026 |
| 4 | FORM 4 | 0001758152-26-000002 | Mar 3, 2026 | Feb 27, 2026 |
| 4 | FORM 4 | 0001925959-26-000002 | Mar 3, 2026 | Feb 27, 2026 |
| 4 | FORM 4 | 0001472762-26-000002 | Mar 3, 2026 | Feb 27, 2026 |
| 4 | FORM 4 | 0001717178-26-000006 | Mar 3, 2026 | Feb 27, 2026 |
| 4 | FORM 4 | 0001925960-26-000006 | Mar 3, 2026 | Feb 27, 2026 |
| 4 | FORM 4 | 0001497570-26-000004 | Mar 3, 2026 | Mar 2, 2026 |
| 4 | FORM 4 | 0001500076-26-000006 | Mar 3, 2026 | Mar 1, 2026 |
| 4 | FORM 4 | 0001066061-26-000006 | Mar 2, 2026 | Feb 27, 2026 |
| 10-K | 10-K | 0001057352-26-000020 | Feb 26, 2026 | Dec 31, 2025 |
| 8-K | 8-K | 0001057352-26-000012 | Feb 24, 2026 | — |
| 4 | FORM 4 | 0001925960-26-000004 | Feb 23, 2026 | Feb 19, 2026 |
| 4 | FORM 4 | 0001500076-26-000004 | Feb 23, 2026 | Feb 19, 2026 |
| 4 | FORM 4 | 0001066061-26-000004 | Feb 23, 2026 | Feb 19, 2026 |
| 4 | FORM 4 | 0001717178-26-000004 | Feb 23, 2026 | Feb 19, 2026 |
| 4 | FORM 4 | 0001925960-26-000002 | Feb 18, 2026 | Feb 15, 2026 |
| 4 | FORM 4 | 0001066061-26-000002 | Feb 18, 2026 | Feb 15, 2026 |
| 4 | FORM 4 | 0001717178-26-000002 | Feb 18, 2026 | Feb 15, 2026 |
| 4 | FORM 4 | 0001500076-26-000002 | Feb 18, 2026 | Feb 15, 2026 |
| 8-K | 8-K | 0001057352-26-000008 | Feb 13, 2026 | — |
| 8-K | 8-K | 0001057352-26-000004 | Jan 7, 2026 | — |
| 4 | FORM 4 | 0001057352-25-000123 | Nov 17, 2025 | Nov 13, 2025 |
| 4 | FORM 4 | 0001057352-25-000122 | Nov 17, 2025 | Nov 13, 2025 |
| 144 | — | 0001965301-25-000172 | Nov 13, 2025 | — |
| 10-Q | 10-Q | 0001057352-25-000120 | Oct 29, 2025 | Sep 30, 2025 |
| 8-K | 8-K | 0001057352-25-000116 | Oct 28, 2025 | — |
| 4 | FORM 4 | 0001057352-25-000107 | Sep 11, 2025 | Sep 9, 2025 |
| 4 | FORM 4 | 0001796961-25-000004 | Sep 11, 2025 | Sep 9, 2025 |
| 4 | FORM 4 | 0001449719-25-000005 | Sep 11, 2025 | Sep 9, 2025 |
| 4 | FORM 4 | 0001351689-25-000005 | Sep 11, 2025 | Sep 9, 2025 |
| 4 | FORM 4 | 0001390194-25-000005 | Sep 11, 2025 | Sep 9, 2025 |
| 4 | FORM 4 | 0001497570-25-000007 | Sep 11, 2025 | Sep 9, 2025 |
| 4 | FORM 4 | 0001742356-25-000005 | Sep 11, 2025 | Sep 9, 2025 |