13 insiders reported 174 Form 4 transactions for Guidewire Software, Inc. (GWRE) over the past 18 months (most recent 2026-08-20). Recent activity: Mullen John P (President) Sell 14,400 shares, Rosenbaum Michael George (Chief Executive Officer) Sell 1,200 shares, Vollert Karl Alexander (Director) Buy 578 shares, Rosenbaum Michael George (Chief Executive Officer) Sell 1,200 shares, Rosenbaum Michael George (Chief Executive Officer) Sell 1,200 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-20 | Mullen John P | President | Sell | 14,400 | $2.7M |
| 2026-08-17 | Rosenbaum Michael George | Chief Executive Officer | Sell | 1,200 | $207,456 |
| 2026-08-12 | Vollert Karl Alexander | Director | Buy | 578 | $0 |
| 2026-08-10 | Rosenbaum Michael George | Chief Executive Officer | Sell | 1,200 | $203,400 |
| 2026-08-03 | Rosenbaum Michael George | Chief Executive Officer | Sell | 1,200 | $187,104 |
| 2026-07-27 | Rosenbaum Michael George | Chief Executive Officer | Sell | 1,200 | $170,772 |
| 2026-07-20 | Rosenbaum Michael George | Chief Executive Officer | Sell | 1,200 | $176,904 |
| 2026-07-13 | Rosenbaum Michael George | Chief Executive Officer | Sell | 1,200 | $166,164 |
| 2026-07-09 | King James Winston | Chief Admin Officer, Gen Couns | Sell | 1,684 | $219,998 |
| 2026-07-06 | Rosenbaum Michael George | Chief Executive Officer | Sell | 1,200 | $157,956 |
| 2026-06-29 | Rosenbaum Michael George | Chief Executive Officer | Sell | 1,200 | $149,148 |
| 2026-06-22 | Rosenbaum Michael George | Chief Executive Officer | Sell | 1,200 | $126,804 |
| 2026-06-22 | Cooper Jeffrey Elliott | Chief Financial Officer | Sell | 1,348 | $142,443 |
| 2026-06-16 | Peterson David Franklin | Chief Accounting Officer | Sell | 246 | $29,211 |
| 2026-06-16 | King James Winston | Chief Admin Officer, Gen Couns | Sell | 999 | $118,624 |
| 2026-06-16 | Rosenbaum Michael George | Chief Executive Officer | Sell | 1,200 | $148,620 |
| 2026-06-16 | Cooper Jeffrey Elliott | Chief Financial Officer | Sell | 2,594 | $308,019 |
| 2026-06-16 | Mullen John P | President | Sell | 4,292 | $509,645 |
| 2026-06-16 | Rosenbaum Michael George | Chief Executive Officer | Sell | 5,830 | $692,272 |
| 2026-06-08 | Rosenbaum Michael George | Chief Executive Officer | Sell | 1,200 | $162,744 |
| 2026-06-02 | Rosenbaum Michael George | Chief Executive Officer | Sell | 1,200 | $190,704 |
| 2026-05-26 | Rosenbaum Michael George | Chief Executive Officer | Sell | 1,200 | $166,212 |
| 2026-05-18 | Rosenbaum Michael George | Chief Executive Officer | Sell | 1,200 | $153,828 |
| 2026-05-12 | Rosenbaum Michael George | Chief Executive Officer | Sell | 1,200 | $163,656 |
| 2026-05-05 | Rosenbaum Michael George | Chief Executive Officer | Sell | 1,200 | $170,292 |
Source: SEC Form 4 filings · as of 2026-08-20