Guidewire Software, Inc. (GWRE) Insider Trading
Over the last 3 months, GWRE insiders made 0 open-market buys and 23 sales, a net sale of -$10.6M (SEC Form 4). Over the last 6 months, 409 institutions increased and 434 reduced their position (13F).
Insider Activity
Sentiment
0/100
Buys (3m)
0
Sells (3m)
23
Net (3m)
-$10.6M
Insider trades by month Buys Sells
Mar
Apr
May
Jun
Jul
Aug
Context3-month price +20.8%Institutions mixed (13F)
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| Aug 27, 2026 | Peterson David Franklinofficer: Chief Accounting Officer | Sell | 2,500 | $200.00 |
| Aug 26, 2026 | Mullen John Pofficer: President | Sell | 16,200 | $185.00 |
| Aug 26, 2026 | Mullen John Pofficer: President | Sell | 1,800 | $188.46 |
| Aug 24, 2026 | Rosenbaum Michael Georgedirector, officer: Chief Executive Officer | Sell | 1,200 | $187.82 |
| Aug 20, 2026 | Mullen John Pofficer: President | Sell | 14,400 | $185.00 |
| Aug 17, 2026 | Rosenbaum Michael Georgedirector, officer: Chief Executive Officer | Sell | 1,200 | $172.88 |
| Aug 12, 2026 | Vollert Karl Alexanderdirector | Grant | 578 | — |
| Aug 10, 2026 | Rosenbaum Michael Georgedirector, officer: Chief Executive Officer | Sell | 1,200 | $169.50 |
| Aug 3, 2026 | Rosenbaum Michael Georgedirector, officer: Chief Executive Officer | Sell | 1,200 | $155.92 |
| Jul 27, 2026 | Rosenbaum Michael Georgedirector, officer: Chief Executive Officer | Sell | 1,200 | $142.31 |
| Jul 20, 2026 | Rosenbaum Michael Georgedirector, officer: Chief Executive Officer | Sell | 1,200 | $147.42 |
| Jul 13, 2026 | Rosenbaum Michael Georgedirector, officer: Chief Executive Officer | Sell | 1,200 | $138.47 |
| Jul 9, 2026 | King James Winstonofficer: Chief Admin Officer, Gen Couns | Sell | 1,684 | $130.64 |
| Jul 6, 2026 | Rosenbaum Michael Georgedirector, officer: Chief Executive Officer | Sell | 1,200 | $131.63 |
| Jun 29, 2026 | Rosenbaum Michael Georgedirector, officer: Chief Executive Officer | Sell | 1,200 | $124.29 |
| Jun 22, 2026 | Cooper Jeffrey Elliottofficer: Chief Financial Officer | Sell | 1,348 | $105.67 |
| Jun 22, 2026 | Rosenbaum Michael Georgedirector, officer: Chief Executive Officer | Sell | 1,200 | $105.67 |
| Jun 16, 2026 | Mullen John Pofficer: President | Sell | 4,292 | $118.74 |
| Jun 16, 2026 | Peterson David Franklinofficer: Chief Accounting Officer | Sell | 246 | $118.74 |
| Jun 16, 2026 | Rosenbaum Michael Georgedirector, officer: Chief Executive Officer | Sell | 5,830 | $118.74 |
| Jun 16, 2026 | Cooper Jeffrey Elliottofficer: Chief Financial Officer | Sell | 2,594 | $118.74 |
| Jun 16, 2026 | Rosenbaum Michael Georgedirector, officer: Chief Executive Officer | Sell | 1,200 | $123.85 |
| Jun 16, 2026 | King James Winstonofficer: Chief Admin Officer, Gen Couns | Sell | 999 | $118.74 |
| Jun 8, 2026 | Rosenbaum Michael Georgedirector, officer: Chief Executive Officer | Sell | 1,200 | $135.62 |
| Jun 2, 2026 | Rosenbaum Michael Georgedirector, officer: Chief Executive Officer | Sell | 1,200 | $158.92 |
| May 26, 2026 | Rosenbaum Michael Georgedirector, officer: Chief Executive Officer | Sell | 1,200 | $138.51 |
| May 18, 2026 | Rosenbaum Michael Georgedirector, officer: Chief Executive Officer | Sell | 1,200 | $128.19 |
| May 12, 2026 | Rosenbaum Michael Georgedirector, officer: Chief Executive Officer | Sell | 1,200 | $136.38 |
| May 5, 2026 | Rosenbaum Michael Georgedirector, officer: Chief Executive Officer | Sell | 1,200 | $141.91 |
| Apr 27, 2026 | Rosenbaum Michael Georgedirector, officer: Chief Executive Officer | Sell | 1,200 | $138.09 |
Source: GWRE SEC Form 4 filings, latest Aug 27, 2026. For informational purposes only — not investment advice.
Institutional activity (13F)
How institutions changed their GWRE positions over the last 6 months (SEC Form 13F).
Increased
409
New positions
194
Reduced
434
Sold out
131
Largest moves
| Institution | Action | Shares | Filed |
|---|---|---|---|
| BLACKROCK, INC. | Increased | 9.3M | May 13, 2026 |
| BAMCO INC /NY/ | Increased | 9.0M | Aug 14, 2026 |
| BlackRock, Inc. | Reduced | 8.9M | Aug 7, 2026 |
| LINONIA PARTNERSHIP LP | Increased | 7.7M | May 15, 2026 |
| Linonia Partnership LP | Reduced | 6.9M | Aug 14, 2026 |
| BAMCO INC /NY/ | Increased | 6.6M | May 15, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | New Position | 4.6M | May 8, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Reduced | 4.5M | Aug 13, 2026 |
| DARSANA CAPITAL PARTNERS LP | Increased | 4.0M | May 15, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | Increased | 3.8M | Aug 13, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 3.8M | May 15, 2026 |
| Darsana Capital Partners LP | Reduced | 3.8M | Aug 14, 2026 |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | Reduced | 3.0M | May 14, 2026 |
| STATE STREET CORP | Increased | 2.7M | Aug 7, 2026 |
| STATE STREET CORP | Increased | 2.6M | May 15, 2026 |
Source: SEC Form 13F filings. For informational purposes only — not investment advice.