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CSGP NASDAQ

CoStar Group, Inc.
1W: +6.5% 1M: -12.5% 3M: -32.0% YTD: -48.4% 1Y: -55.6% 3Y: -55.3% 5Y: -58.7%
$33.95
+0.02 (+0.06%)
 
Weekly Expected Move ±5.5%
$29 $31 $33 $34 $36
NASDAQ · Real Estate · Real Estate - Services · Alpha Radar Sell · Power 47 · $13.9B mcap · 403M float · 1.76% daily turnover · Short 39% of daily vol

🏦 Institutional Activity

Latest: Q1 2026
963
Institutions Holding
-46 vs prior
104.1%
Ownership
-89.61%
111 New
271 Increased
489 Reduced
241 Closed

👔 Insider Trades

25 records
Date Name Title Type Shares Price Value Filing
2026-05-01 FLORANCE ANDREW C officer: president and ceo P-Purchase 3,100 $35.82 $111K Filing
2026-05-01 FLORANCE ANDREW C officer: president and ceo P-Purchase 68,330 $35.17 $2.4M Filing
2026-03-15 Boxer Gene officer: general counsel and secretary F-Tax Withholding 482 $43.63 $21K Filing
2026-03-15 Cann Cynthia Cammett officer: chief accounting officer F-Tax Withholding 1,194 $43.63 $52K Filing
2026-03-15 DESMARAIS MICHAEL J officer: chief human resources officer F-Tax Withholding 2,873 $43.63 $125K Filing
2026-03-15 SIMURO FRANK officer: chief technology officer F-Tax Withholding 11,107 $43.63 $485K Filing
2026-03-15 Boxer Gene officer: general counsel and secretary F-Tax Withholding 428 $43.63 $19K Filing
2026-03-15 Ruggles Lisa officer: senior vp, global operations F-Tax Withholding 2,977 $43.63 $130K Filing
2026-03-02 SAINT FREDERICK G. officer: president, marketplaces P-Purchase 20,000 $45.33 $907K Filing
2026-03-02 Glaser Rachel C director P-Purchase 1,000 $44.94 $45K Filing
2026-03-01 Cann Cynthia Cammett officer: chief accounting officer F-Tax Withholding 1,385 $44.63 $62K Filing
2026-03-01 SAINT FREDERICK G. officer: president, marketplaces F-Tax Withholding 11,096 $44.63 $495K Filing
2026-03-01 LOWN CHRISTIAN M. officer: chief financial officer F-Tax Withholding 7,175 $44.63 $320K Filing
2026-03-01 Ruggles Lisa officer: senior vp, global operations F-Tax Withholding 8,931 $44.63 $399K Filing
2026-03-01 DESMARAIS MICHAEL J officer: chief human resources officer F-Tax Withholding 6,353 $44.63 $284K Filing
2026-03-01 SIMURO FRANK officer: chief technology officer F-Tax Withholding 18,702 $44.63 $835K Filing
2026-03-01 FLORANCE ANDREW C officer: president and ceo F-Tax Withholding 59,593 $44.63 $2.7M Filing
2026-03-01 Boxer Gene officer: general counsel and secretary F-Tax Withholding 4,547 $44.63 $203K Filing
2026-02-27 FLORANCE ANDREW C officer: president and ceo P-Purchase 55,720 $44.52 $2.5M Filing
2026-02-19 SAINT FREDERICK G. officer: president, marketplaces F-Tax Withholding 2,149 $49.07 $105K Filing
2026-02-19 SIMURO FRANK officer: chief technology officer F-Tax Withholding 4,421 $49.07 $217K Filing
2026-02-19 SIMURO FRANK officer: chief technology officer D-Sale to Issuer 30,727 $— $0 Filing
2026-02-19 Ruggles Lisa officer: senior vp, global operations F-Tax Withholding 3,219 $49.07 $158K Filing
2026-02-19 Ruggles Lisa officer: senior vp, global operations D-Sale to Issuer 17,583 $— $0 Filing
2026-02-19 FLORANCE ANDREW C officer: president and ceo F-Tax Withholding 19,221 $49.07 $943K Filing

🏛️ Congressional Trades

25 records
Date Politician Chamber Type Amount Filing
2026-04-14 Gilbert Cisneros House Sell $1,001 - $15,000 Filing
2026-03-13 Gilbert Cisneros House Buy $1,001 - $15,000 Filing
2026-01-28 Gilbert Cisneros House Buy $1,001 - $15,000 Filing
2025-12-10 Gilbert Cisneros House Buy $1,001 - $15,000 Filing
2025-10-15 Gilbert Cisneros House Buy $1,001 - $15,000 Filing
2025-09-30 Gilbert Cisneros House Buy $1,001 - $15,000 Filing
2025-09-25 Lisa McClain House Sell $1,001 - $15,000 Filing
2025-09-25 Lisa McClain House Sell $1,001 - $15,000 Filing
2025-09-22 Gilbert Cisneros House Buy $1,001 - $15,000 Filing
2025-08-13 Lisa McClain House Buy $1,001 - $15,000 Filing
2025-07-31 Gilbert Cisneros House Buy $1,001 - $15,000 Filing
2025-07-09 Gilbert Cisneros House Buy $1,001 - $15,000 Filing
2025-06-30 Gilbert Cisneros House Buy $1,001 - $15,000 Filing
2025-06-27 Gilbert Cisneros House Buy $15,001 - $50,000 Filing
2025-06-25 Gilbert Cisneros House Buy $1,001 - $15,000 Filing
2025-05-15 Rob Bresnahan House Sell $1,001 - $15,000 Filing
2025-05-12 Jefferson Shreve House Sell $15,001 - $50,000 Filing
2025-02-24 Jefferson Shreve House Buy $15,001 - $50,000 Filing
2025-01-21 William R. Keating House Buy $1,001 - $15,000 Filing
2025-01-15 Julie Johnson House Sell $1,001 - $15,000 Filing
2024-09-09 Ro Khanna House Sell $1,001 - $15,000 Filing
2024-02-13 Ro Khanna House Buy $1,001 - $15,000 Filing
2023-11-03 Ro Khanna House Buy $1,001 - $15,000 Filing
2023-10-31 Ro Khanna House Sell $1,001 - $15,000 Filing
2023-10-10 Ro Khanna House Buy $1,001 - $15,000 Filing

🏦 Top Institutional Holders

20 holders
Holder Shares Value Date Reported Filing
VANGUARD PORTFOLIO MANAGEMENT LLC 38,234,133 $1.5B +38,234,133 2026-03-31 Filing
BlackRock, Inc. 33,808,184 $1.4B -162,442 2026-03-31 Filing
VANGUARD CAPITAL MANAGEMENT LLC 27,423,903 $1.1B +27,423,903 2026-03-31 Filing
STATE STREET CORP 18,650,975 $752M +18,623 2026-03-31 Filing
PRINCIPAL FINANCIAL GROUP INC 17,696,192 $714M +130,118 2026-03-31 Filing
Capital International Investors 15,513,753 $626M +4,671,743 2026-03-31 Filing
BAILLIE GIFFORD & CO 13,610,922 $549M +677,737 2026-03-31 Filing
POLEN CAPITAL MANAGEMENT LLC 12,570,368 $507M +7,679,432 2026-03-31 Filing
GEODE CAPITAL MANAGEMENT, LLC 12,448,652 $500M +266,485 2026-03-31 Filing
AKRE CAPITAL MANAGEMENT LLC 10,348,273 $417M +730,468 2026-03-31 Filing
GOLDMAN SACHS GROUP INC 9,245,812 $373M +5,494,284 2026-03-31 Filing
JANUS HENDERSON GROUP PLC 7,724,152 $312M +250,772 2026-03-31 Filing
Invesco Ltd. 7,137,002 $288M +1,749,946 2026-03-31 Filing
CADEN CAPITAL PARTNERS, LP 4,821 $194M +3,306 2026-03-31 Filing
Capital Research Global Investors 4,373,706 $176M -1,193,256 2026-03-31 Filing
BANK OF AMERICA CORP /DE 3,568,107 $144M +63,295 2026-03-31 Filing
NORTHERN TRUST CORP 3,432,231 $138M -33,831 2026-03-31 Filing
Meritage Group LP 3,329,006 $134M +3,329,006 2026-03-31 Filing
Amundi 3,280,724 $132M -833,792 2026-03-31 Filing
Legal & General Group Plc 3,025,508 $122M +164,208 2026-03-31 Filing

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For informational purposes only. Not investment advice. Data sourced from SEC filings. Privacy Terms