BetaInsiders sold $48.3M in the past 12 months.76% was sold under disclosed trading plans, 24% to cover taxes. The largest seller, Michael Rosenbaum (Chief Executive Officer, Director), sold $23.3M.Share-of-stake figures for this company are being verified and will be added when that check is finished. Why
A share of stake is shown for 0 of the 5 officers and directors who sold. 13 are left out Disclosed company stock is not an insider's whole wealth.i
Left out: Michael Rosenbaum, John Mullen, Jeffrey Cooper, James King, Catherine Lego, Margaret Dillon, David Peterson, Rajani Ramanathan, Michael Keller, David Bauer, Mark Anquillare, Jeffrey Sloan and Karl Vollert (share of stake is being verified).
Officers and directors, past 12 months. Their share of stake is being verified and is not shown yet; amounts and trading plans are below.
Officers and directors, Oct 2025 to Oct 2026. Each sale is counted once: under a disclosed plan, else to cover taxes, else no plan disclosed.
| Who | Shares | Price | % of total stake | Total stake after | Trade date | Filed |
|---|---|---|---|---|---|---|
| Michael Rosenbaum Chief Executive Officer, Director | 1,200 | $152.52 | n/a | n/a | Oct 5, 2026 | Oct 5, 2026 |
| Who | Shares | Price | % of total stake | Total stake after | Trade date | Filed |
|---|---|---|---|---|---|---|
| Michael Rosenbaum Chief Executive Officer, Director | 1,200 | $142.65 | n/a | n/a | Sep 28, 2026 | Sep 30, 2026 |
| Who | Shares | Price | % of total stake | Total stake after | Trade date | Filed |
|---|---|---|---|---|---|---|
| Michael Rosenbaum Chief Executive Officer, Director | 1,200 | $145.92 | n/a | n/a | Sep 21, 2026 | Sep 21, 2026 |
| Who | Shares | Price | % of total stake | Total stake after | Trade date | Filed |
|---|---|---|---|---|---|---|
| Jeffrey Cooper Chief Financial Officer | 9,941 | $142.61 | n/a | n/a | Sep 18, 2026 | Sep 21, 2026 |
| James King Chief Admin Officer, Gen Couns | 1,381 | $144.98 | n/a | n/a | Sep 18, 2026 | Sep 21, 2026 |
| Who | Shares | Price | % of total stake | Total stake after | Trade date | Filed |
|---|---|---|---|---|---|---|
| Michael Rosenbaum Chief Executive Officer, Director Also under a disclosed plan | 72,290 | $144.47 | n/a | n/a | Sep 17, 2026 | Sep 21, 2026 |
| John Mullen President | 39,683 | $144.47 | n/a | n/a | Sep 17, 2026 | Sep 21, 2026 |
| Jeffrey Cooper Chief Financial Officer Also under a disclosed plan | 23,234 | $144.47 | n/a | n/a | Sep 17, 2026 | Sep 21, 2026 |
| James King Chief Admin Officer, Gen Couns Also under a disclosed plan | 11,814 | $144.47 | n/a | n/a | Sep 17, 2026 | Sep 21, 2026 |
| David Peterson Chief Accounting Officer Also under a disclosed plan | 1,905 | $144.47 | n/a | n/a | Sep 17, 2026 | Sep 21, 2026 |
| Who | Shares | Price | % of total stake | Total stake after | Trade date | Filed |
|---|---|---|---|---|---|---|
| Michael Rosenbaum Chief Executive Officer, Director | 1,200 | $145.87 | n/a | n/a | Sep 14, 2026 | Sep 14, 2026 |
"% of total stake" is the shares in an event against all the vested shares the person held that day, across every share class and holding entity, after that day's vesting. "n/a" means the person's holdings are not confirmed, or the row is a purchase. "Holdings record incomplete" means more shares were sold than the filings show the person held that day, so a percentage would be wrong.
Yes. Michael Rosenbaum sold 151K shares ($23.3M) in the past 12 months, 92% of it under a trading plan disclosed in the filings.
Filings rarely give a reason, and we don't guess at one. What they show is how the sales were made: 76% of sales by value ran under 10b5-1 trading plans disclosed in the filings and 24% were to cover taxes. A trading plan schedules sales in advance.
No. Officers and directors reported no purchases in the past 12 months.
| Who sold | Amount | % of holdings | Trading plan |
|---|---|---|---|
| Michael Rosenbaum Chief Executive Officer, Director | $23.3M 151K shares | Not confirmedshare of stake is being verified. Why | 92% under a disclosed plan, 8% to cover taxes |
| John Mullen President | $13.5M 83K shares | Not confirmedshare of stake is being verified. Why | 35% under a disclosed plan, 65% to cover taxes |
| Jeffrey Cooper Chief Financial Officer | $7.1M 48K shares | Not confirmedshare of stake is being verified. Why | 91% under a disclosed plan, 9% to cover taxes |
| James King Chief Admin Officer, Gen Couns | $3.4M 22K shares | Not confirmedshare of stake is being verified. Why | 92% under a disclosed plan, 8% to cover taxes |
| David Peterson Chief Accounting Officer | $918K 5.3K shares | Not confirmedshare of stake is being verified. Why | 88% under a disclosed plan, 12% to cover taxes |
Vested shares across all share classes, held directly and through trusts, LLCs and family members, as reported on SEC Forms 3, 4 and 5. Unvested awards and options are never counted as owned shares.
| Insider | Held Oct 13, 2025 | Sold | Held Oct 13, 2026 | Still held |
|---|---|---|---|---|
Michael Rosenbaum!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Michael Rosenbaum are complete. Chief Executive Officer, Director | n/a | −151K | n/a | n/a |
Vesting, gifts, unvested awards and holding lines for Michael RosenbaumHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Michael Rosenbaum are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) | ||||
John Mullen!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for John Mullen are complete. President | n/a | −83K | n/a | n/a |
Vesting, gifts, unvested awards and holding lines for John MullenHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for John Mullen are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) | ||||
Jeffrey Cooper!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Jeffrey Cooper are complete. Chief Financial Officer | n/a | −48K | n/a | n/a |
Vesting, gifts, unvested awards and holding lines for Jeffrey CooperHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Jeffrey Cooper are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) | ||||
James King!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for James King are complete. Chief Admin Officer, Gen Couns | n/a | −22K | n/a | n/a |
Vesting, gifts, unvested awards and holding lines for James KingHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for James King are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) | ||||
Catherine Lego!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Catherine Lego are complete. Director | n/a | 0 | n/a | n/a |
Vesting, gifts, unvested awards and holding lines for Catherine LegoHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Catherine Lego are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) | ||||
Margaret Dillon!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Margaret Dillon are complete. Director | n/a | 0 | n/a | n/a |
Vesting, gifts, unvested awards and holding lines for Margaret DillonHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Margaret Dillon are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) | ||||
David Peterson!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for David Peterson are complete. Chief Accounting Officer | n/a | −5.3K | n/a | n/a |
Vesting, gifts, unvested awards and holding lines for David PetersonHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for David Peterson are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) | ||||
Rajani Ramanathan!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Rajani Ramanathan are complete. Director | n/a | 0 | n/a | n/a |
Vesting, gifts, unvested awards and holding lines for Rajani RamanathanHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Rajani Ramanathan are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) | ||||
Michael Keller!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Michael Keller are complete. Director | n/a | 0 | n/a | n/a |
Vesting, gifts, unvested awards and holding lines for Michael KellerHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Michael Keller are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) | ||||
David Bauer!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for David Bauer are complete. Director | n/a | 0 | n/a | n/a |
Vesting, gifts, unvested awards and holding lines for David BauerHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for David Bauer are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) | ||||
Mark Anquillare!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Mark Anquillare are complete. Director | n/a | 0 | n/a | n/a |
Vesting, gifts, unvested awards and holding lines for Mark AnquillareHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Mark Anquillare are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) | ||||
Jeffrey Sloan!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Jeffrey Sloan are complete. Director | n/a | 0 | n/a | n/a |
Vesting, gifts, unvested awards and holding lines for Jeffrey SloanHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Jeffrey Sloan are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) | ||||
Karl Vollert!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Karl Vollert are complete. Director | n/a | 0 | n/a | n/a |
Vesting, gifts, unvested awards and holding lines for Karl VollertHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Karl Vollert are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) | ||||
Holdings and share of stake for Guidewire Software, Inc. are being verified, so no balances, unit counts or percentages are shown. Sales, proceeds, plan and tax status, titles and dates come straight from individual filings.
Officer and director open-market sales: $48.3M across 308,801 shares. Plan status and stated purpose are separate questions, and a sale can have both.
The lighter segment is sales with no plan disclosed in the filing ($11.8M), including tax-related sales outside a plan.
$29.1M of sales (60.3%) cite tax obligations in their footnotes, $17.3M of them also under a plan. Example: David Peterson, Sep 17, 2026
| Seller | Shares sold | Proceeds | Under a disclosed plan | Share of total | Sales dates |
|---|---|---|---|---|---|
| Michael Rosenbaum Chief Executive Officer, Director | 151K | $23.3M | 92% | 48% | Oct 20, 2025 to Oct 5, 2026 |
| John Mullen President | 83K | $13.5M | 35% | 28% | Nov 3, 2025 to Sep 17, 2026 |
| Jeffrey Cooper Chief Financial Officer | 48K | $7.1M | 91% | 15% | Dec 16, 2025 to Sep 18, 2026 |
| James King Chief Admin Officer, Gen Couns | 22K | $3.4M | 92% | 7% | Oct 20, 2025 to Sep 18, 2026 |
| David Peterson Chief Accounting Officer | 5.3K | $918K | 88% | 2% | Dec 16, 2025 to Sep 17, 2026 |
| Month | Sale proceeds | Disclosed plan | To cover taxes | No plan disclosed |
|---|---|---|---|---|
| Oct 2025 | $898K | $898K | $0 | $0 |
| Nov 2025 | $2.1M | $2.1M | $0 | $0 |
| Dec 2025 | $6.3M | $3.5M | $2.8M | $0 |
| Jan 2026 | $636K | $636K | $0 | $0 |
| Feb 2026 | $624K | $624K | $0 | $0 |
| Mar 2026 | $4.1M | $1.7M | $2.4M | $0 |
| Apr 2026 | $657K | $657K | $0 | $0 |
| May 2026 | $654K | $654K | $0 | $0 |
| Jun 2026 | $2.6M | $1.6M | $936K | $0 |
| Jul 2026 | $892K | $892K | $0 | $0 |
| Aug 2026 | $4.9M | $4.9M | $0 | $0 |
| Sep 2026 | $23.8M | $18.1M | $5.7M | $0 |
| Oct 2026 | $183K | $183K | $0 | $0 |
More than usual: about 2x the 5-year average. 5 insiders sold; the average is 6 a year.
| 12 months ending | Shares sold | Insiders who sold | Proceeds |
|---|---|---|---|
| Oct 13, 2026 Latest 12 months | 309K | 5 | $48.3M |
| Oct 13, 2025 1 year earlier | 245K | 7 | $54.1M |
| Oct 13, 2024 2 years earlier | 124K | 5 | $17.6M |
| Oct 14, 2023 3 years earlier | 153K | 5 | $12.4M |
| Oct 14, 2022 4 years earlier | 93K | 6 | $7.2M |
| Oct 14, 2021 5 years earlier | 153K | 8 | $17.6M |
Open-market sales (Form 4 code S) by people who were officers or directors, in split-adjusted shares. Earlier years include people who have since left. A sale that an outside holder also reports (a family trust, a fund) is counted with outside holders in every year. Shares, not dollars, are compared, so a change in the stock price doesn't look like a change in selling. Years the filings don't fully cover are shown but left out of the average.
Holdings and share of stake are being verified. Balances, unit counts and every share-of-stake figure for Guidewire Software, Inc. are held back until that check is finished. Sales, proceeds, plan and tax status, titles and dates come straight from individual filings and are complete.
External context: we only cite outside events when a documented connection exists. None is shown for this period.
All 1,551 Forms 3, 4 and 5 on record for Guidewire Software, Inc. (SEC CIK 1528396), filed from Jan 24, 2012 to Oct 5, 2026; 97 of them were filed in the 12 months this page covers, retrieved from SEC EDGAR on Oct 13, 2026. Prices are the ones reported in each filing, often weighted averages.
Holdings. Each holding line (a share class plus an owner, such as a trust or LLC) carries its last reported balance forward. Entities first reported during the period start at zero, so transfers between an insider's own trusts don't count as selling. Lines not reported for three years or more are listed separately and left out of totals.
Sales. A sale counts as under a 10b5-1 plan if its footnote cites one or the filing's Rule 10b5-1 box is checked, and as tax-related if its footnote cites tax obligations or sell-to-cover. Shares withheld by the company for taxes are listed separately. Sales with neither attribute are labeled "no plan disclosed".
Spotted something wrong on this page? Report an error. We check every report against the SEC filing and list what we fix in the corrections log.