ANDREW C FLORANCE

CIK 1066061 · Founder and CEO · last filed 2026-08-05

"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.

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Disclosed Exposure

$51.80M

Companies

2

Total Filings

120

Lifetime Open-Market Net

-$253.54M

Filer Profile

Reported Address
C/O COSTAR GROUP INC
1201 WILSON BLVD.
ARLINGTON, VA 22209
Profile details as reported on the filer's SEC submissions — for individual insiders the address is often in care of the issuer. Related filers are identified from jointly filed SEC submissions and shared reported addresses. View filings on SEC EDGAR.

Holdings By Company

Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
Symbol Role Shares Price Disclosed Exposure Lifetime OM Net Filings Latest Filed
CSGP Founder and CEO 1,806,165 $28.17 $50.88M -$253.77M 115 2026-08-05
WD Director 24,019 $38.21 $917.8K $237.5K 4 2015-06-05

Recent Filings · Page 3 of 12

120 filings
Insider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
Filed Symbol Action Net Shares Net $ Link
2022-09-15 CSGP Grant (A) +48 $0 EDGAR
2022-03-03 CSGP Tax (F) −11,541 -$704.1K EDGAR
2022-02-18 CSGP Mixed +82,262 -$5.56M EDGAR
2021-03-11 CSGP Sell (S) −19,570 -$16.02M EDGAR
2021-03-02 CSGP Mixed −6,321 -$4.55M EDGAR
2021-02-19 CSGP Grant (A) +18,160 $0 EDGAR
2021-02-17 CSGP Tax (F) −3,305 -$3.11M EDGAR
2021-01-04 CSGP Gift (G) −20,000 $0 EDGAR
2020-08-28 CSGP Mixed — -$20.45M EDGAR
2020-04-02 CSGP Tax (F) −3,026 -$1.82M EDGAR
Showing 21–30 of 120
Page 3 of 12
Form 4 codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.