GWRE
Guidewire Software Inc
162.60$
+1.6%
vs. previous close
Closing price · As of: Oct 30, 2026
Ownership
Ownership Structure
Who owns Guidewire Software Inc (GWRE)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 90.7% of the shares are freely tradable; institutional investors hold 104.8%.
Institutional ownership
?Share of the stock held by institutional investors (funds, banks, insurers) according to regulatory filings.
104.8%
Insiders
?Share of the stock held by the executives, founders and major shareholders of the company itself.
0.4%
Float
?Share of stock freely tradable on the market — not locked up in the hands of founders, insiders, or major shareholders.
90.7%
Short % of float
?Shares sold short as a percentage of the freely tradable float — high values signal many bets on falling prices.
4.0%
Shares Outstanding
?Total number of shares issued. Price times share count gives market cap.
82Mio.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| BAMCO Inc | 10.97 | 8,994,456 | +36.3 | 06/30/2026 |
| BlackRock Inc | 10.87 | 8,909,665 | -4.5 | 06/30/2026 |
| Linonia Partnership LP | 8.46 | 6,933,483 | -9.4 | 06/30/2026 |
| Vanguard Portfolio Management, LLC | 5.50 | 4,507,288 | -1.9 | 06/30/2026 |
| Vanguard Capital Management, LLC | 4.69 | 3,845,465 | +0.1 | 06/30/2026 |
| Darsana Capital Partners LP | 4.64 | 3,804,000 | -4.9 | 06/30/2026 |
| State Street Corp | 3.27 | 2,681,587 | +2.3 | 06/30/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Baron Partners Retail | 3.99 | 3,275,057 | -6.8 | 09/30/2026 |
| iShares Core S&P Mid-Cap ETF | 3.62 | 2,965,607 | +0.0 | 09/30/2026 |
| Vanguard MStar Total Stk Mkt Idx Invest | 3.22 | 2,643,545 | -1.8 | 09/30/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider holdings
| Person | Role | Shares | Value | As of | Type |
|---|---|---|---|---|---|
| Rosenbaum Michael George | Chief Executive Officer | 273,666 | 44,498,092 $ | Oct 26, 2026 | direct |
| Mullen John P | President | 176,447 | 28,690,282 $ | Oct 26, 2026 | direct |
| Cooper Jeffrey Elliott | Chief Financial Officer | 85,420 | 13,889,292 $ | Sep 18, 2026 | direct |
| King James Winston | Chief Admin Officer, Gen Couns | 35,371 | 5,751,325 $ | Oct 9, 2026 | direct |
| Peterson David Franklin | Chief Accounting Officer | 12,233 | 1,989,086 $ | Sep 17, 2026 | direct |
| Vollert Karl Alexander | Director | 578 | 93,983 $ | Aug 12, 2026 | direct |
Holdings as of each person's most recent SEC Form 4 filing — excluding options and RSUs, which are not shares yet. Holdings may have changed between two filings.
Insiders
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Oct 26, 2026 | Mullen John P | President | Sell | 1,800 | 187.19 | 336,942 |
| Oct 26, 2026 | Rosenbaum Michael George | Chief Executive Officer | Sell | 1,200 | 187.19 | 224,628 |
| Oct 20, 2026 | Mullen John P | President | Sell | 5,400 | 185.00 | 999,000 |
| Oct 19, 2026 | Rosenbaum Michael George | Chief Executive Officer | Sell | 1,200 | 167.90 | 201,480 |
| Oct 12, 2026 | Rosenbaum Michael George | Chief Executive Officer | Sell | 1,200 | 168.97 | 202,764 |
| Oct 9, 2026 | King James Winston | Chief Admin Officer, Gen Couns | Sell | 9,187 | 168.00 | 1,543,416 |
| Oct 5, 2026 | Rosenbaum Michael George | Chief Executive Officer | Sell | 1,200 | 152.52 | 183,024 |
| Sep 28, 2026 | Rosenbaum Michael George | Chief Executive Officer | Sell | 1,200 | 142.65 | 171,180 |
| Sep 21, 2026 | Rosenbaum Michael George | Chief Executive Officer | Sell | 1,200 | 145.92 | 175,104 |
| Sep 18, 2026 | Cooper Jeffrey Elliott | Chief Financial Officer | Sell | 994 | 144.98 | 144,110 |
| Sep 18, 2026 | Cooper Jeffrey Elliott | Chief Financial Officer | Sell | 1,195 | 143.61 | 171,610 |
| Sep 18, 2026 | Cooper Jeffrey Elliott | Chief Financial Officer | Sell | 4,468 | 142.69 | 637,541 |
| Sep 18, 2026 | Cooper Jeffrey Elliott | Chief Financial Officer | Sell | 2,430 | 141.68 | 344,289 |
| Sep 18, 2026 | Cooper Jeffrey Elliott | Chief Financial Officer | Sell | 854 | 140.73 | 120,182 |
| Sep 18, 2026 | King James Winston | Chief Admin Officer, Gen Couns | Sell | 1,381 | 144.98 | 200,217 |
| Sep 17, 2026 | Mullen John P | President | Sell | 39,683 | 144.47 | 5,733,074 |
| Sep 17, 2026 | Cooper Jeffrey Elliott | Chief Financial Officer | Sell | 23,234 | 144.47 | 3,356,658 |
| Sep 17, 2026 | Rosenbaum Michael George | Chief Executive Officer | Sell | 72,290 | 144.47 | 10,443,866 |
| Sep 17, 2026 | King James Winston | Chief Admin Officer, Gen Couns | Sell | 11,814 | 144.47 | 1,706,784 |
| Sep 17, 2026 | Peterson David Franklin | Chief Accounting Officer | Sell | 1,905 | 144.47 | 275,219 |
| Sep 15, 2026 | Mullen John P | President | Other | 75,211 | 0.00 | – |
| Sep 15, 2026 | Cooper Jeffrey Elliott | Chief Financial Officer | Other | 37,826 | 0.00 | – |
| Sep 15, 2026 | Rosenbaum Michael George | Chief Executive Officer | Other | 123,074 | 0.00 | – |
| Sep 15, 2026 | King James Winston | Chief Admin Officer, Gen Couns | Other | 19,701 | 0.00 | – |
| Sep 15, 2026 | Peterson David Franklin | Chief Accounting Officer | Other | 4,351 | 0.00 | – |
| Sep 14, 2026 | Rosenbaum Michael George | Chief Executive Officer | Sell | 1,200 | 145.87 | 175,044 |
| Sep 11, 2026 | Mullen John P | President | Other | 35,004 | 0.00 | – |
| Sep 11, 2026 | Cooper Jeffrey Elliott | Chief Financial Officer | Other | 18,650 | 0.00 | – |
| Sep 11, 2026 | Rosenbaum Michael George | Chief Executive Officer | Other | 45,906 | 0.00 | – |
| Sep 11, 2026 | King James Winston | Chief Admin Officer, Gen Couns | Other | 8,034 | 0.00 | – |
| Sep 8, 2026 | Rosenbaum Michael George | Chief Executive Officer | Sell | 1,200 | 160.52 | 192,624 |
| Aug 31, 2026 | Rosenbaum Michael George | Chief Executive Officer | Sell | 1,200 | 204.44 | 245,328 |
| Aug 27, 2026 | Peterson David Franklin | Chief Accounting Officer | Sell | 2,500 | 200.00 | 500,000 |
| Aug 24, 2026 | Rosenbaum Michael George | Chief Executive Officer | Sell | 1,200 | 187.82 | 225,384 |
| Aug 19, 2026 | Mullen John P | President | Sell | 14,400 | 185.00 | 2,664,000 |
| Aug 17, 2026 | Rosenbaum Michael George | Chief Executive Officer | Sell | 1,200 | 172.88 | 207,456 |
| Aug 12, 2026 | Vollert Karl Alexander | Director | Other | 578 | 0.00 | – |
| Aug 10, 2026 | Rosenbaum Michael George | Chief Executive Officer | Sell | 1,200 | 169.50 | 203,400 |
| Aug 3, 2026 | Rosenbaum Michael George | Chief Executive Officer | Sell | 1,200 | 155.92 | 187,104 |
| Jul 27, 2026 | Rosenbaum Michael George | Chief Executive Officer | Sell | 1,200 | 142.31 | 170,772 |
| Jul 20, 2026 | Rosenbaum Michael George | Chief Executive Officer | Sell | 1,200 | 147.42 | 176,904 |
| Jul 13, 2026 | Rosenbaum Michael George | Chief Executive Officer | Sell | 1,200 | 138.47 | 166,164 |
| Jul 9, 2026 | King James Winston | Chief Admin Officer, Gen Couns | Sell | 1,684 | 130.64 | 219,998 |
| Apr 20, 2026 | Michael George Rosenbaum | CEO | Sell | 1,200 | 139.75 | 167,700 |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character. View all insider transactions →
Data as of: October 30, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.