A business in context

CSGP research notebook

Read the disclosures. Follow the relationships. Keep the dates in view.

Research JSON

Filing timeline

Download filings CSV

SEC submissions · retrieved 2026-09-07 · 8010 issuers; up to 32 recent company reports and 8 ownership-change filings per issuer

  1. 8-K · Current report

    Report date 2026-08-21 · 0001057352-26-000072 · Items 7.01,9.01

  2. 4 · Ownership change

    Report date 2026-08-07 · 0001472762-26-000012

  3. 4 · Ownership change

    Report date 2026-08-05 · 0001351689-26-000005

  4. 4 · Ownership change

    Report date 2026-08-04 · 0001628280-26-052968

  5. 4 · Ownership change

    Report date 2026-07-31 · 0002146463-26-000005

  6. 4 · Ownership change

    Report date 2026-08-01 · 0001500076-26-000010

  7. 4 · Ownership change

    Report date 2026-07-31 · 0001472762-26-000010

  8. 10-Q · Quarterly report

    Report date 2026-06-30 · 0001057352-26-000066

  9. 8-K · Current report

    Report date 2026-07-28 · 0001057352-26-000061 · Items 2.02,9.01

  10. 8-K · Current report

    Report date 2026-07-07 · 0001057352-26-000054 · Items 5.02,7.01,9.01

  11. 4 · Ownership change

    Report date 2026-07-01 · 0001701994-26-000006

  12. 8-K · Current report

    Report date 2026-06-23 · 0001057352-26-000048 · Items 5.02,5.07,7.01,9.01

  13. 4 · Ownership change

    Report date 2026-06-23 · 0001796961-26-000004

  14. 8-K · Current report

    Report date 2026-05-28 · 0001193125-26-246361 · Items 1.01,7.01,9.01

  15. DEF 14A · Proxy statement

    Report date 2026-06-23 · 0001193125-26-197205

  16. 10-Q · Quarterly report

    Report date 2026-03-31 · 0001057352-26-000035

  17. 8-K · Current report

    Report date 2026-04-28 · 0001057352-26-000030 · Items 2.02,7.01,9.01

  18. 8-K · Current report

    Report date 2026-03-15 · 0001057352-26-000024 · Items 5.02,7.01

  19. 10-K · Annual report

    Report date 2025-12-31 · 0001057352-26-000020

  20. 8-K · Current report

    Report date 2026-02-24 · 0001057352-26-000012 · Items 2.02,7.01,9.01

  21. 8-K · Current report

    Report date 2026-02-13 · 0001057352-26-000008 · Items 5.02,9.01

  22. 8-K · Current report

    Report date 2026-01-07 · 0001057352-26-000004 · Items 5.02,7.01,9.01

  23. 10-Q · Quarterly report

    Report date 2025-09-30 · 0001057352-25-000120

  24. 8-K · Current report

    Report date 2025-10-28 · 0001057352-25-000116 · Items 2.02,7.01

  25. 8-K · Current report

    Report date 2025-08-27 · 0001057352-25-000102 · Items 7.01

  26. 10-Q · Quarterly report

    Report date 2025-06-30 · 0001057352-25-000097

  27. 8-K · Current report

    Report date 2025-07-22 · 0001057352-25-000095 · Items 2.02,7.01,9.01

  28. 8-K · Current report

    Report date 2025-06-26 · 0001057352-25-000083 · Items 5.02,5.07,9.01

  29. 8-K · Current report

    Report date 2025-05-09 · 0001057352-25-000069 · Items 1.01,7.01,9.01

  30. 10-Q · Quarterly report

    Report date 2025-03-31 · 0001057352-25-000067

  31. DEF 14A · Proxy statement

    Report date 2025-06-26 · 0001193125-25-107493

  32. 8-K · Current report

    Report date 2025-04-29 · 0001057352-25-000063 · Items 2.02,9.01

  33. 8-K · Current report

    Report date 2025-04-06 · 0001193125-25-074119 · Items 1.01,5.02,7.01,9.01

  34. 8-K · Current report

    Report date 2025-02-28 · 0001193125-25-042465 · Items 2.01,7.01,9.01

  35. 10-K · Annual report

    Report date 2024-12-31 · 0001057352-25-000016

  36. 8-K · Current report

    Report date 2025-02-18 · 0001057352-25-000004 · Items 2.02,7.01,9.01

  37. 10-Q · Quarterly report

    Report date 2024-09-30 · 0001057352-24-000125

  38. 8-K · Current report

    Report date 2024-10-22 · 0001057352-24-000122 · Items 2.02,7.01,9.01

  39. 10-Q · Quarterly report

    Report date 2024-06-30 · 0001057352-24-000091

  40. 8-K · Current report

    Report date 2024-07-23 · 0001193125-24-182891 · Items 2.02,7.01,9.01

Reported insider transactions

Download transactions CSV

SEC insider transactions · retrieved 2026-09-07 · 2026 Q2: filings in this completed quarter; not a live transaction feed

Purchases and sales include open-market or private transactions. Grants, exercises and tax withholding are shown separately. Amendments and joint reports can overlap; rows are not a net-buying score. Prices retain the filing's units; consult its footnotes.

Transaction rows by code · counts, not monetary totals
Purchase: 2 transaction rows2PSale: 0 transaction rows0SGrant / award: 7 transaction rows7AExercise / conversion: 0 transaction rows0MTax / exercise payment: 1 transaction rows1FGift: 0 transaction rows0G
P · PurchaseS · SaleA · Grant / awardM · Exercise / conversionF · Tax / exercise paymentG · Gift

10 matching transaction rows.

Transaction / filedReporting ownerTypeSecuritySharesReported price
2026-06-23
2026-06-24
Sams Louise SA · Grant / award
Acquired
Common Stock, par value $0.01 per share8262.00.0
2026-06-23
2026-06-24
Brunner Angelique G.A · Grant / award
Acquired
Common Stock, par value $0.01 per share8262.00.0
2026-06-23
2026-06-24
McCarthy Christine MA · Grant / award
Acquired
Common Stock, par value $0.01 per share8262.00.0
2026-06-23
2026-06-24
Glaser Rachel CA · Grant / award
Acquired
Common Stock, par value $0.01 per share8262.00.0
2026-06-23
2026-06-24
BERISFORD JOHN LA · Grant / award
Acquired
Common Stock, par value $0.01 per share8262.00.0
2026-06-23
2026-06-24
Musslewhite Robert WA · Grant / award
Acquired
Common Stock, par value $0.01 per share8262.00.0
2026-06-23
2026-06-24
Hill John WA · Grant / award
Acquired
Common Stock, par value $0.01 per share8262.00.0
2026-06-15
2026-06-16
Cann Cynthia CammettF · Tax / exercise payment
Disposed
Common Stock, par value $0.01 per share461.032.04
2026-05-01
2026-05-04
FLORANCE ANDREW CP · Purchase
Acquired
Common Stock, par value $0.01 per share68330.035.17
2026-05-01
2026-05-04
FLORANCE ANDREW CP · Purchase
Acquired
Common Stock, par value $0.01 per share3100.035.82

Identity & relationships

Wikidata structured data · retrieved 2026-09-07 · 1611 unambiguous CIK-linked entities; coverage is incomplete

These are sourced identity and relationship claims, with incomplete coverage. Headquarters locations do not describe sales, assets or operating exposure.

SEC issuer · 0001057352COSTAR GROUP, INC.
LoopNetSTR, Inc.Apartments.comHomes.comOnTheMarketDomain GroupZonda Home

Showing 7 of 7 imported Wikidata subsidiary claims. Additional aliases appear below.

No parent relationship is available in this import; this is not proof of independence.

Legal Entity Identifier
984500Q1D53D08E2E698
GLEIF legal name
COSTAR GROUP, INC.
Entity / LEI registration status
ACTIVE / ISSUED
Reference data updated
2026-01-21T15:02:44Z

direct-parent: no parent LEI supplied

ultimate-parent: no parent LEI supplied

GLEIF legal entity reference data · retrieved 2026-09-07 · 1177 checked identities; 0 unavailable records

Search names and former names

View Wikidata identity and references ↗

  • CoStar Group · alias · wikidata
  • CoStar Realty Information, Inc. · alias · wikidata
  • LoopNet · subsidiary · wikidata
  • LoopNet, Inc. · subsidiary · wikidata
  • LoopNet Inc · subsidiary · wikidata
  • LoopNet Canada Inc. · subsidiary · wikidata
  • STR, Inc. · subsidiary · wikidata
  • STR Inc · subsidiary · wikidata
  • STR · subsidiary · wikidata
  • Smith Travel Research, Inc. · subsidiary · wikidata
  • Smith Travel Research · subsidiary · wikidata
  • STR, Inc · subsidiary · wikidata
  • STR, LLC · subsidiary · wikidata
  • STR LLC · subsidiary · wikidata
  • Apartments.com · subsidiary · wikidata
  • Apartmentscom · subsidiary · wikidata
  • Apartments-com · subsidiary · wikidata
  • Homes.com · subsidiary · wikidata
  • OnTheMarket · subsidiary · wikidata
  • Domain Group · subsidiary · wikidata
  • DOMAIN HOLDINGS AUSTRALIA LIMITED. · subsidiary · wikidata
  • Zonda Home · subsidiary · wikidata
  • COSTAR GROUP, INC. · former SEC name · 2019-07-23 to 2026-08-21
  • COSTAR GROUP INC · former SEC name · 1999-12-10 to 2019-06-25
  • REALTY INFORMATION GROUP INC · former SEC name · 1998-07-17 to 1999-05-05
Explore headquarters map ↗

Revenue in constant purchasing power

USD revenue expressed in 2026-07 consumer-price dollars. Each annual period uses a CPI-U average weighted by the days in its actual reporting interval. This is a purchasing-power comparison, not a company-specific price or volume measure.

Year endedReported USD revenueCPI-adjusted USD revenue
2024-12-31$2.74B$2.91B
2023-12-31$2.46B$2.69B
2022-12-31$2.18B$2.49B
2021-12-31$1.94B$2.40B
2020-12-31$1.66B$2.14B
2019-12-31$1.40B$1.83B
2018-12-31$1.19B$1.58B
2017-12-31$965.23M$1.31B

Bureau of Labor Statistics · retrieved 2026-09-07 · 9 selected series; gaps remain missing

Explore the CPI history ↗