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sellWeak cluster of 2

Cynthia Cammett Cann sold $127k of CSGP

Chief Accounting Officer at COSTAR GROUP, INC.. 1,841 shares at an average of $68.79, traded Nov 13, 2025, filed Nov 17, 2025.

Warning score
34
Value
$127k
1,841 shares
Holdings after
23,211
-7% from before
From 52-week low
+2%
low $67.23, close $68.53
From 52-week high
-29%
high $96.83, as of Nov 13, 2025

Score components

  • Role
    Officer
    +15
  • Trade size
    $127k at market
    +11
  • Share of holdings sold
    Sold 7.3% of holdings
    0
  • Cluster
    2 insiders selling within 14 days
    +8

What happened after comparable sells

Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.

This signal so far: 1m -3.2%, 3m -32.9%, 6m -50.4%.

Price around the trade, and since

From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.

CSGPOct 13, 2026 · close 30.00
Since filing Nov 17, 2025: -55.2%SPY +18.1% · excess -73.4%

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™

Rows in this filing

Every transaction in Form 4 0001057352-25-000122, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Nov 13, 2025SOpen-market sale
Common Stock, par value $0.01 per share
-1,841$68.79$127k23,211Nov 17, 2025

Related signals

Other insiders at COSTAR GROUP, INC. and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
38Weak
CSGPsell 2
COSTAR GROUP, INC.
John W Hill
director
$106k
3,500 shares
-13%
39Weak
CSGPsell 2
COSTAR GROUP, INC.
Cynthia Cammett Cann
Chief Accounting Officer
$147k
4,788 shares
-20%
68Notable
CSGPbuy
COSTAR GROUP, INC.
Andrew C Florance
Founder and CEO
$2.5M
83,300 shares
+5%
73Notable
CSGPbuy
COSTAR GROUP, INC.
Andrew C Florance
President and CEO
$2.5M
71,430 shares
+4%
58Moderate
CSGPbuy 4
COSTAR GROUP, INC.
Louise S Sams
director
$48k
1,000 shares
+5%
60Notable
CSGPbuy 4
COSTAR GROUP, INC.
Rachel C Glaser
director
$45k
1,000 shares
+32%
80Strong
CSGPbuy 4
COSTAR GROUP, INC.
G. Saint Frederick
President, Marketplaces
$907k
20,000 shares
+8%
83Strong
CSGPbuy 4
COSTAR GROUP, INC.
Andrew C Florance
President and CEO
$2.5M
55,720 shares
+4%
39Weak
CSGPsell 2
COSTAR GROUP, INC.
John W Hill
director
$155k
2,250 shares
-11%
45Moderate
CSGPsell
COSTAR GROUP, INC.
G. Saint Frederick
President, Marketplaces
$2.3M
25,000 shares
-8%

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.