CoStar Group ($CSGP) Insider Trading & Smart Money Activity
CoStar Group, Inc. ($CSGP) has 8 insider trades, 2 congress trades, 4 13F position changes and 3 analyst ratings on file. Insiders filed 8 Form 4 transactions in the last 12 months, none of them open-market purchases or sales.
- Insider buyers (12 mo)
- 0
- Insider sellers (12 mo)
- 0
- Net insider $ (12 mo)
- $0
- Congress trades (12 mo)
- 2
- 13F moves on file
- 4
- Analyst ratings on file
- 3
CSGP insider buying and selling by quarter
| Quarter | Insider buys | Insider sales | Congress buys / sales | 13F added / cut |
|---|---|---|---|---|
| Q1 2026 | 0 | 0 | 0 / 0 | 0 / 0 |
| Q2 2026 | 0 | 0 | 1 / 0 | 1 / 1 |
| Q3 2026 | 0 | 0 | 1 / 0 | 0 / 0 |
| Q4 2026 | 0 | 0 | 0 / 0 | 0 / 1 |
Insider buys and sales count open-market trades only (Form 4 codes P and S). Grants, option exercises and tax withholding are left out.
All CSGP insider, congress, 13F and analyst activity
| Date | Source | Who | Action | Shares | Value / amount | ΔOwn | 1W | 1M | 6M | Filing | Story |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 13F | First Citizens Bank & Trust | Reduced | -319.56K sh | $1.20M | Read | ||||||
| Analyst | Needham | Reiterates to Buy | PT $40 | +8.6% | — | ||||||
| Congress | Gilbert Ray Cisneros Jr. | Purchase | $1,001 - $15,000 | -4.7% | -13.8% | — | |||||
| Analyst | Goldman Sachs | Reiterates to buy | PT $46 | +4.7% | +1.9% | Read | |||||
| Analyst | Wells Fargo | Reiterates to sell | PT $26 | -1.5% | -7.2% | Read | |||||
| Insider | Louise Sams | Buy (Grant or award) | 8.26K sh | -6.4% | -10.3% | Read | |||||
| Insider | Robert Musslewhite | Buy (Grant or award) | 8.26K sh | -6.4% | -10.3% | Read | |||||
| Insider | Christine Mccarthy | Buy (Grant or award) | 8.26K sh | -6.4% | -10.3% | Read | |||||
| Insider | John Hill | Buy (Grant or award) | 8.26K sh | -6.4% | -10.3% | Read | |||||
| Insider | Rachel Glaser | Buy (Grant or award) | 8.26K sh | -6.4% | -10.3% | Read | |||||
| Insider | Angelique Brunner | Buy (Grant or award) | 8.26K sh | -6.4% | -10.3% | Read | |||||
| Insider | John Berisford | Buy (Grant or award) | 8.26K sh | -6.4% | -10.3% | Read | |||||
| Insider | Cann Cynthia CammettChief Accounting Officer | Sell (Tax withholding) | 461 sh | $14.77K | -8.8% | -11.1% | — | ||||
| Congress | Donald J Trump | Purchase | $50,001 - $100,000 | -5.2% | -13.9% | Read | |||||
| 13F | Tiger Global Management | Reduced | -759.11K sh | $42.78M | +3.9% | -2.0% | — | ||||
| 13F | Polen Capital Management | Added | +7.68M sh | $358.51M | +6.5% | +0.6% | — | ||||
| 13F | Soroban Capital Partners | Sold out | -1.05M sh | — |
1W / 1M / 6M = how CSGP moved from the trade or filing date.
Insider trading in CSGP: who is buying and selling
| Insider | Role | Trades | Open-market net | Shares held | Last trade |
|---|---|---|---|---|---|
| Louise Sams | 1 | — | Jun 23, 2026 | ||
| Robert Musslewhite | 1 | — | Jun 23, 2026 | ||
| Christine Mccarthy | 1 | — | Jun 23, 2026 | ||
| John Hill | 1 | — | Jun 23, 2026 | ||
| Rachel Glaser | 1 | — | Jun 23, 2026 | ||
| Angelique Brunner | 1 | — | Jun 23, 2026 | ||
| John Berisford | 1 | — | Jun 23, 2026 | ||
| Cann Cynthia Cammett | Chief Accounting Officer | 1 | — | Jun 15, 2026 |
Members of Congress trading CSGP
Institutions moving CSGP (13F)
Analyst ratings on CSGP
Frequently asked questions
What is the latest insider trade in CSGP?
Louise Sams filed a buy (grant or award) of 8.26K sh on Jun 23, 2026.
Which members of Congress traded CSGP?
2 disclosed trades by Gilbert Ray Cisneros Jr. and Donald J Trump. The latest was on Aug 19, 2026.
Which institutions changed their CSGP positions?
Recent 13F filers moving the stock include First Citizens Bank & Trust, Tiger Global Management, Polen Capital Management and Soroban Capital Partners.
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Data comes from public SEC Form 4 and 13F filings and STOCK Act disclosures. Dates are the trade or filing date reported. This page is for research only and is not investment advice.
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