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sellModerate cluster of 510b5-1 plan

Michael George Rosenbaum sold $11M of GWRE

Chief Executive Officer at Guidewire Software, Inc.. 73,490 shares at an average of $144.50, traded Sep 17, 2026, filed Sep 21, 2026.

Warning score
50
Value
$11M
73,490 shares
Holdings after
279,666
-21% from before
From 52-week low
-
no price yet
From 52-week high
-
no price yet

Score components

  • Role
    CEO
    +25
  • Trade size
    $10.6M at market
    +25
  • Share of holdings sold
    Sold 21% of holdings
    +5
  • Cluster
    5 insiders selling within 14 days
    +15
  • 10b5-1 plan
    Pre-scheduled under a 10b5-1 plan
    -20

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.

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.

GWREOct 9, 2026 · close 167.32
Since filing Sep 21, 2026: +12.0%SPY +0.7% · excess +11.4%

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 0001784996-26-000095, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Sep 17, 2026SOpen-market sale
Common Stock10b5-1
-72,290$144.47$10M280,86621 d ago
Sep 21, 2026SOpen-market sale
Common Stock10b5-1
-1,200$145.92$175k279,66621 d ago

Related signals

Other insiders at Guidewire Software, Inc. and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
17Weak
GWREsell10b5-1
Guidewire Software, Inc.
Michael George Rosenbaum
Chief Executive Officer
$183k
1,200 shares
-0%
31Weak
GWREsell 510b5-1
Guidewire Software, Inc.
Michael George Rosenbaum
Chief Executive Officer
$171k
1,200 shares
-0%
52Moderate
GWREsell 510b5-1
Guidewire Software, Inc.
Jeffrey Elliott Cooper
Chief Financial Officer
$4.8M
33,175 shares
-28%
29Weak
GWREsell 510b5-1
Guidewire Software, Inc.
David Franklin Peterson
Chief Accounting Officer
$275k
1,905 shares
-13%
40Moderate
GWREsell 510b5-1
Guidewire Software, Inc.
James Winston King
Chief Admin Officer, Gen Couns
$1.9M
13,195 shares
-23%
65Notable
GWREsell 5
Guidewire Software, Inc.
John P Mullen
President
$5.7M
39,683 shares
-18%
32Weak
GWREsell 510b5-1
Guidewire Software, Inc.
Michael George Rosenbaum
Chief Executive Officer
$175k
1,200 shares
-1%
32Weak
GWREsell 510b5-1
Guidewire Software, Inc.
Michael George Rosenbaum
Chief Executive Officer
$193k
1,200 shares
-1%
18Weak
GWREsell10b5-1
Guidewire Software, Inc.
Michael George Rosenbaum
Chief Executive Officer
$245k
1,200 shares
-1%
27Weak
GWREsell10b5-1
Guidewire Software, Inc.
Jeffrey Elliott Cooper
Chief Financial Officer
$1.9M
7,535 shares
-9%

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.

Michael George Rosenbaum sold $11M of GWRE | InsiderTell