Costar Group, Inc. insider trading
In the last twelve months insiders at Costar Group, Inc. filed 4 open-market sales worth $534,282 and 7 open-market purchases worth $8.5 million, on Form 4 with the SEC. The latest: Cann Cynthia Cammett, Chief Accounting Officer, sold 4,788 shares at $30.78 on 7 August 2026, filed 10 August 2026.
| Traded | Insider | Role | Type | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| 7 August 2026 | Cann Cynthia Cammett | Chief Accounting Officer | Sale | 4,788 | $30.78 | $147,375 | Form 4 |
| 5 August 2026 | Hill John W | Director | Sale | 3,500 | $30.21 | $105,735 | Form 4 |
| 4 August 2026 | Florance Andrew C | Founder and CEO | Purchase | 83,300 | $29.89 | $2.5 million | Form 4 |
| 1 May 2026 | Florance Andrew C | President and CEO | Purchase | 68,330 | $35.17 | $2.4 million | Form 4 |
| 1 May 2026 | Florance Andrew C | President and CEO | Purchase | 3,100 | $35.82 | $111,042 | Form 4 |
| 6 March 2026 | Sams Louise S | Director | Purchase | 1,000 | $48.36 | $48,360 | Form 4 |
| 2 March 2026 | Glaser Rachel C | Director | Purchase | 1,000 | $44.94 | $44,940 | Form 4 |
| 2 March 2026 | Saint Frederick G. | President, Marketplaces | Purchase | 20,000 | $45.33 | $906,600 | Form 4 |
| 27 February 2026 | Florance Andrew C | President and CEO | Purchase | 55,720 | $44.52 | $2.5 million | Form 4 |
| 13 November 2025 | Hill John W | Director | Sale | 2,250 | $68.68 | $154,530 | Form 4 |
| 13 November 2025 | Cann Cynthia Cammett | Chief Accounting Officer | Sale | 1,841 | $68.79 | $126,642 | Form 4 |
Open-market purchases (code P) and sales (code S) only. Option exercises, grants, tax withholding and gifts are not shown. A filing with several lines appears once per line.
Source
Form 4 filings on EDGAR for Costar Group, Inc.: the company's filing index.
The same record on your computer
GreekSoup is also a free program for your own computer. It reads these same filings for the names you follow, refreshed as they land, with no account. One pasted line installs it.