CSGP SEC Form 4 filings
Costar Group, Inc. Latest Insider Trading Activity
Over the past 34 days, 3 insider trades from Costar Group, Inc. (CSGP). The most recent SEC Form 4 filing shows a sale by Cann Cynthia Cammett (Costar Group, Inc. Chief Accounting Officer) on August 7, 2026 involving 4,788 shares at $30.78 per share. This page shows up to the 10 most recent SEC Form 4 filing records on a 24-hour delay. Sign up for real-time updates and access to 20 years of historic insider trading data.
⚠️ THE SAMPLE BELOW IS DEFERRED BY 24 HOURS ⚠️
Start your 2-week, no-credit-card free trial today to receive get down to the second insider trading updates in this directory or email.
| Ticker | Filing Date | Transaction Date | Company | Insider | Title | Transaction | Trade Count | Shares | Avg. Price | Total Value | Position Size Change | SEC Filing |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| CSGP | 2026-08-10 | 2026-08-07 | Costar Group, Inc. | Cann Cynthia Cammett | Chief Accounting Officer | Sell | 1 | 4,788 | $30.78 | $147,374.64 | 20.28% | View Filing |
| CSGP | 2026-08-10 | 2026-08-05 | Costar Group, Inc. | Hill John W | Director | Sell | 1 | 3,500 | $30.21 | $105,735.00 | 13.21% | View Filing |
| CSGP | 2026-08-05 | 2026-08-04 | Costar Group, Inc. | Florance Andrew C | Founder and CEO | Buy | 1 | 83,300 | $29.89 | $2,489,837.00 | 4.61% | View Filing |
Real-time employee trading alerts from SEC Form 4 filings. Sign up for a free trial. No credit card required.
Pricing
Free Trial
10 trading days$0
Explore every Premium feature before you pay.
- Full platform access
- 10 trading days
- No credit card required
- 20 years of alert history
- Live alert directory updates
Standard Monthly
Scheduled$19.99 / month
Scheduled alerts with complete trade context.
- Email and Telegram delivery
- Alert intervals from every sixty minutes to once daily
- Filter by insider title, buy/sell, transaction value, DRIP, ESPP, 10b5-1, and tax liability coverage transfers
- Highlighted cluster transactions and SEC filing links
- Access to the alert directory hourly refreshes
Premium Monthly
Recommended$29.99 / month
Fastest alerts with ticker-level control.
- Everything in Standard
- Instant delivery detection-to-outbound time averages 0.85 seconds
- Alert intervals starting from one minute
- Real time alert directory updates
Student discount: Customers who sign up with a verified .edu email address receive 50% off for the first four years. On monthly plans, the first month is the full 75% off.
Alerts are based on public SEC filings and are provided for informational purposes only; they do not constitute financial advice.