CoStar
CSGP
27.60
-0.03
-0.11%
CoStar
US · CSGP
#1375 by market cap
Listed 1970
27.60
-0.03
-0.11%
Live - 5344 symbols - heartbeat 360s ago
· 2026-10-08 04:11
Pre-market
27.23
-1.34%
After-hours
27.72
+0.43%
Overnight
27.74
+0.51%
- Market cap
- 11.18B
- P/E (TTM)i
- 153.33
- P/Bi
- 1.41
- EPSi
- 0.02
- Div yieldi
- 0.00%
- 52W posi
- 3%
Reader sentiment
Are you bullish or bearish on CSGP?
Anonymous reader poll. Unscientific, not investment advice.
✦ Quant Ownership Signal how this is computed
Distributing
- The number of reporting institutions decreased by 5 in the most recent period (2026/Q3).
- Total institutional ownership fell 0.8 percentage points.
Institutional ownership
- Held by institutions
- 104.64% -0.82pp
- Institutions
- 941 -5
- As of
- 2026/Q3 vs. prior period
Ownership vs. money flow
DivergingInstitutions trimmed shares last reporting period, and the stock has seen net inflows in main-fund flow over the last 20 trading sessions - the two are pointing in different directions.
Institutional ownership changes are reported quarterly with a lag; fund-flow data is daily. Treat this as a directional cross-check, not a precise timing signal.
Holder types
Mutual Fund86.17%
Hedge Fund9.24%
Public Company3.15%
Government Pension Fund2.01%
Private Company1.68%
Sovereign Wealth Fund1.65%
Individual/Insider0.76%
Family Office/Trust0.26%
Insurance Company0.22%
Top holders as of 2026-06-30
Vanguard Portfolio Management, LLC
9.36% · 37.91M sh
BlackRock
8.35% · 33.81M sh
Vanguard Capital Management, LLC
7.15% · 28.98M sh
Baron Capital Group, Inc.
5.34% · 21.63M sh
Capital Research
5.15% · 20.87M sh
State Street Global Advisors
4.54% · 18.41M sh
Baillie Gifford
3.25% · 13.15M sh
Geode Capital Management, LLC
3.00% · 12.17M sh
Akre Capital Management, LLC
2.89% · 11.70M sh
Polen Capital Management, LLC
2.16% · 8.76M sh
Bar length is relative to the largest holder shown here, not to 100% of the company.
Insiders
50 filings tracked · 28 buys · 20 sells
| Name | Role | Stake |
|---|---|---|
| Andrew Florance | Chief Executive Officer | 0.39% |
| Frank Simuro | Chief Technology Officer | 0.10% |
| Frederick Saint | President of Marketplaces | 0.07% |
| Lisa Ruggles | Officer | 0.04% |
| Christian Lown | Chief Financial Officer | 0.03% |
| Scott Wheeler | Chief Financial Officer | 0.03% |
| Michael Desmarais | Chief Human Resources Officer | 0.02% |
| Robin Rossmann | Managing Director of Europe | 0.02% |
| Gene Boxer | General Counsel | 0.01% |
| Louise Sams | Independent Director | 0.01% |
Insider transactions most recent Form 4 filings
| Date | Name | Role | Type | Shares | Price |
|---|---|---|---|---|---|
| 2026-08-06 | Cynthia Cann | -- | Open Market Disposition | -4,788 | $30.78 |
| 2026-08-04 | John Hill | Independent Director | Open Market Disposition | -3,500 | $30.21 |
| 2026-08-03 | Andrew Florance | Chief Executive Officer | Open Market Acquisition | +83,300 | $29.89 |
| 2026-07-31 | Frederick Saint | President of Marketplaces | Sale to Issuer | -1,436 | $28.76 |
| 2026-07-31 | Cynthia Cann | -- | Sale to Issuer | -1,077 | $28.76 |
| 2026-07-30 | Cynthia Cann | -- | Other Derivative Acquisition | +26,078 | -- |
| 2026-07-30 | Robin Rossmann | Managing Director of Europe | Other Derivative Acquisition | +34,771 | -- |
| 2026-07-30 | Robin Rossmann | Managing Director of Europe | Initial Statement of Beneficial | 0 | -- |
| 2026-06-30 | Christian Lown | Chief Financial Officer | Sale to Issuer | -5,597 | $29.36 |
| 2026-06-22 | Christine McCarthy | Independent Director | Other Acquisition | +8,262 | -- |
| 2026-06-22 | Louise Sams | Independent Director | Other Acquisition | +8,262 | -- |
| 2026-06-22 | John Berisford | Independent Director | Other Acquisition | +8,262 | -- |
| 2026-06-22 | John Hill | Independent Director | Other Acquisition | +8,262 | -- |
| 2026-06-22 | Robert Musslewhite | Independent Director | Other Acquisition | +8,262 | -- |
| 2026-06-22 | Rachel Glaser | Independent Director | Other Acquisition | +8,262 | -- |
| 2026-06-22 | Angelique Brunner | Independent Member of The Board | Other Acquisition | +8,262 | -- |
| 2026-06-14 | Cynthia Cann | -- | Sale to Issuer | -461 | $32.04 |
| 2026-04-30 | Andrew Florance | Chief Executive Officer | Open Market Acquisition | +71,430 | $35.17–35.82 |
| 2026-03-14 | Frank Simuro | Chief Technology Officer | Sale to Issuer | -11,107 | $43.63 |
| 2026-03-14 | Cynthia Cann | -- | Sale to Issuer | -1,194 | $43.63 |
Form 4 filings, most recent per company. "Other Derivative Acquisition" rows are mostly RSU/option vesting, not open-market buying - the Type column says which.
Quote time 2026-10-08 04:11:42 · For reference only, not investment advice and not tailored to your situation.