CSGPCoStar Group
CoStar Group is a leading provider of online real estate marketplaces, information, analytics, and 3D digital twin technology in the property markets. 10-K, Item 1
- Headquarters
- Arlington, VA
- CEO
- Andrew C. Florance
- Next results
- around Feb 23, 2027
What CSGP's directors and officers said they would sell, before they sold: trading plans the company reports each quarter, and the Form 144 notices sellers file on the day of a planned sale. Facts only; most of these sales are routine, such as selling shares from vesting stock awards.
Trading plans adopted or ended
| Insider | What | Date | Shares | Runs to | Reported in |
|---|---|---|---|---|---|
| Michael Desmarais Chief Human Resources Officer |
Adopted 10b5-1 plan | Dec 4, 2025 | up to 5,000 | Jul 31, 2026 | 10-K Feb 26, 2026 |
The company's descriptionOn December 4, 2025, Michael Desmarais, Chief Human Resources Officer, entered into a Plan that provides for the sale of up to 5,000 CoStar Group Shares. Mr. Desmarais's Plan terminates on July 31, 2026, for a duration of 239 days. | |||||
| Cynthia Cann Chief Accounting Officer |
Adopted 10b5-1 plan | Nov 14, 2025 | up to 3,986 | Jul 31, 2026 | 10-K Feb 26, 2026 |
The company's descriptionOn November 14, 2025, Cynthia Cann, Chief Accounting Officer, entered into a Plan that provides for the sale of up to 3,986 CoStar Group Shares. Ms. Cann’s plan terminates on July 31, 2026, for a duration of 259 days. | |||||
From the XBRL of the company's 10-Qs and 10-Ks (Regulation S-K Item 408, reported since 2023): 15 filings checked since Apr 26, 2023.
Form 144 notices of planned sales
| Filed | Seller | Shares | Value | Shares came from | 10b5-1 plan | Form 4 sales after |
|---|---|---|---|---|---|---|
| Aug 5, 2026 | Hill John W Director |
3,500 | $106,068 | Payment for services rendered | none given | 3,500 shares from Aug 5, 2026 |
| Nov 13, 2025 | Hill John W Director, Member of immediate family of any of the foregoing |
2,250 | $151,920 | Payment for Services Rendered | none given | none found |
From the Form 144 XML filed with the SEC, since Nov 13, 2025. The value is the seller's estimate on the notice. "Form 4 sales after" matches the seller's Form 4 sales in the 30 days after the notice, by name; Form 4s go back 180 days.
Work on CSGP in a spreadsheet:
Excel workbook (a sheet per section, ten years by column, charts, links to the filings) ·
CSV.
For a Google Sheet that stays up to date, paste =IMPORTDATA("https://tickdelta.com/company/CSGP/export.csv") into a cell.