Massivemarkets

SEC Form 4

GUIDEWIRE SOFTWARE, INC. (GWRE) insider trading

In the 12 months to Oct 26, 2026, 5 GWRE insiders reported open-market sales of $21.6M across 66 filings; no open-market purchases were filed.

Latest filing · Last 12 months · Source: SEC EDGAR · How we count

Open-market sales
$21.6M
66 filings · 5 insiders
Open-market purchases
$0
0 filings
Pre-arranged sales (10b5-1)
65 of 66
$20.8M of $21.6M sold (97%)

Who traded GWRE, and when

  • Sale
  • Sale, pre-arranged (10b5-1)

GWRE daily close from Oct 27, 2025 to Oct 26, 2026, between $102.69 and $253.05, last $181.80. 66 sale and 0 purchase filings by 5 insiders, marked at their filing dates. Michael George Rosenbaum, Chief Executive Officer: sold $10.3M across 51 filings, first filed Oct 27, 2025, last Oct 19, 2026. John P. Mullen, President: sold $5.7M across 4 filings, first filed Nov 3, 2025, last Oct 20, 2026. Jeffrey Elliott Cooper, Chief Financial Officer: sold $2.6M across 5 filings, first filed Dec 18, 2025, last Sep 21, 2026. James Winston King, Chief Admin Officer, Gen Couns: sold $2.5M across 5 filings, first filed Nov 17, 2025, last Oct 13, 2026. David Franklin Peterson, Chief Accounting Officer: sold $500.0K across 1 filing, first filed Aug 27, 2026, last Aug 27, 2026.

Largest mark · tap a row for others

John P. Mullen · President

Sale $3,336,228

18,000 shares at $185.35 avg

Filed Aug 26, 2026 · traded Aug 19

Pre-arranged (10b5-1) · close on filing date $191.07

GWRE daily closelast $181.80

Michael George Rosenbaum · Chief Executive Officer

$10.3M sold

John P. Mullen · President

$5.7M sold

Jeffrey Elliott Cooper · Chief Financial Officer

$2.6M sold

James Winston King · Chief Admin Officer, Gen Couns

$2.5M sold

David Franklin Peterson · Chief Accounting Officer

$500.0K sold
One row per insider; marks sit at the SEC filing date, sized by dollar value.

Open-market trades

66 filings in the last 12 months
Other insider activity (not market trades) · 37 records
  • Option exercises5 records
  • Tax withholding (sold to cover)20 records
  • Grants and awards12 records

Reported on Form 4 but not purchases or sales in the market, so not counted in the totals above.

How to read this page

Open-market purchase or sale
A buy or sell of the company's stock at market price. Grants, option exercises, shares withheld for tax, gifts and employee stock plan purchases are listed separately and not counted.
Pre-arranged (10b5-1)
The insider marked the filing as made under a trading plan set up in advance (SEC Rule 10b5-1). The mark covers the whole filing, and an unmarked filing may still be under a plan.
Filing date
Insiders have two business days to report a trade. Totals and the chart use the filing date, when the trade became public.
Counted once
When several owners (a fund and its partners, say) report the same trade, it's counted once. Corrected filings replace the originals.

Frequently asked questions

Has GUIDEWIRE SOFTWARE, INC.'s CEO sold stock?

Yes. Michael George Rosenbaum (CEO) sold 63,200 shares ($10.3M) between Oct 2025 and Oct 2026, all under a pre-arranged 10b5-1 plan.

How current is GWRE’s insider data?

These are GWRE Form 4 filings from the last year, refreshed daily. The Massive Form 4 API has the full, continuously updated record.

What counts as an open-market buy or sell?

Only purchases and sales at the market price. Option exercises, grants, gifts, and shares withheld for taxes are reported on Form 4 but are left out of the buy and sell totals.

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Track GWRE insider trades with your agent

This page joins two Massive endpoints: Form 4 filings and daily prices. Ask an agent to watch for new filings:

Using the Massive API (massive.com/docs/llms.txt), check Form 4 filings for GWRE every day with transaction_code=P and tell me when an insider files an open-market purchase, with their role, shares, price and the filing link.

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