Guidewire Executives Sell Millions in Shares Primarily to Cover Tax Obligations

James Winston King’s automatic sale of 1,381 shares on September 18 was executed under a Rule 10b5-1 trading plan adopted October 14, 2025, and amended April 9, 2026.
The 39,683 shares sold for John P. Mullen were traded within a narrow price range of $144.4714 to $144.4725 per share, producing a reported average of $144.4718; the filing said the full price breakdown was available upon request.
Guidewire shares rose $5.10 to $149.39 in the trading session covered by the report, while the stock’s 12-month range was $102.30 to $255.89 and its market capitalization was about $12.44 billion.
Guidewire had recently reported quarterly earnings of $0.99 per share, beating the $0.93 analyst consensus, while revenue of $411.09 million exceeded the $402.61 million estimate and increased 15.3% from the year-earlier quarter.
Three Guidewire Software executives sold shares in mid-September 2026 to cover taxes tied to restricted stock unit vesting. Ticker Report reported that President John P. Mullen sold 39,683 shares for roughly $5.7 million on September 17, while Chief Accounting Officer David Franklin Peterson and Chief Administrative Officer James Winston King also disposed of shares for tax obligations. The sales were made under prearranged trading plans, not discretionary decisions.
Guidewire's President John P. Mullen sold 39,683 shares at an average price of $144.47 per share on September 17. Ticker Report said the transaction generated approximately $5.7 million to cover tax withholding obligations linked to RSU vesting. Mullen retained 183,647 shares after the sale, maintaining a substantial stake in the insurance software maker.
Chief Accounting Officer David Franklin Peterson sold 1,905 shares for similar tax purposes and held 12,233 shares afterward. Chief Administrative Officer James Winston King reported total dispositions of 13,195 shares in September, including 11,814 shares sold on September 17 to cover RSU-related taxes and 1,381 shares sold under an automatic trading plan the next day. Watchlist News disclosed King's transaction was worth $1.7 million.
Guidewire shares rose $5.10 to $149.39 in the September 17 session. The stock's 12-month range spans $102.30 to $255.89, with a market cap near $12.44 billion. The company recently beat earnings expectations: it reported $0.99 per share versus a $0.93 consensus estimate and revenue of $411.09 million, up 15.3% year-over-year, exceeding the $402.61 million forecast.
King's September 18 sale of 1,381 shares was executed under a Rule 10b5-1 trading plan adopted in October 2025 and amended in April 2026. These prearranged plans allow executives to sell shares on a preset schedule, removing discretion from individual trades. The structure insulates insiders from accusations of trading on material nonpublic information.
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