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Insider

Andrew C Florance

President and CEO

Andrew C Florance (President and CEO) filed 3 Form 4 reports in the trailing twelve months (3 purchases, 0 sales), most often in CoStar Group, Inc. (CSGP). Across 3 priced purchase filings, the average 21-session return was -1.6% from execution and -3.3% from disclosure (delay-adjusted; derived). The largest single filing was $2.5M of CSGP (71,430 sh across 2 lots, as filed), executed May 1.

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Return, ttmiAverage return per filing, trailing twelve months
-1.6%
avg across 3 priced filings
Delay-adjustediThe same average, entered at disclosure dates
-3.3%
same 3 filings, from disclosure
Filings, ttm
3
3 buys · 0 sells
Median delay
3d
execution → disclosure
Volume, ttmiDollar value disclosed in the trailing twelve months
$7.5M
shares × price, as filed
Last traded
Aug 4
Filed Aug 5

Median ADV $244.8M across their filed names

Open performance
Volume by month
$2.5M$1.3M$0Oct 2024Apr 2025Oct 2025Apr 2026Oct 2024 · buys $1.1MMar 2026 · buys $2.5MMay 2026 · buys $2.5MAug 2026 · buys $2.5M
Buys $8.6M Sells $0

Shares × price, as filed · by filing month · past 24 months

Sectors filed on
Real Estate 3 filings

Sector per market data · by filing · past 12 months

Most traded names
CSGP CoStar Group, Inc. CSGP · 4 buys · 0 sells 4 filings
Recent filings
CSGPPURCHASE CoStar Group, Inc. View filing → $2.5M
83,300 sh × $29.89
Exec Aug 4
Filed Aug 5 · 9:27 AM ET
CSGPPURCHASE CoStar Group, Inc. View filing → $2.5M
71,430 sh across 2 lots
Exec May 1
Filed May 4 · 6:01 AM ET
CSGPPURCHASE CoStar Group, Inc. View filing → $2.5M
55,720 sh × $44.52
Exec Feb 27
Filed Mar 2 · 4:00 PM ET
CSGPPURCHASE CoStar Group, Inc. View filing → $1.1M
14,731 sh × $74.67
Exec Oct 25 2024
Filed Oct 28 2024 · 5:30 PM ET