Guidewire Software, Inc.
GWRE- Exchange
- NYSE
- Industry
- Services-Prepackaged Software
- SEC CIK
- 0001528396
In the last 90 days, Guidewire Software, Inc. insiders filed 0 open-market purchases and 19 sales; 549 institutions reported holding it in 13F filings for Q2 2026, worth $10.4B in total; no superinvestor holds it.
Holders of 5% or more of GWRE
Holders whose latest Schedule 13D or 13G filing reports 5% or more of Guidewire Software, Inc., largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| BlackRock, Inc. | 13G/A | 10.20%8.60M shares | +0.40 ppfrom 9.80% | Apr 17, 20252 filings | Jul 2, 2025 | SEC |
| Linonia Partnership LP | 13G/A | 9.00%7.65M shares | +2.70 ppfrom 6.30% | Sep 29, 20253 filings | May 15, 2026 | SEC |
| Bamco Inc | 13G/A | 7.79%6.59M shares | +1.74 ppfrom 6.05% | Nov 14, 20243 filings | May 15, 2026 | SEC |
| Vanguard Portfolio Management LLC | 13G | 5.45%4.62M shares | New | Apr 29, 20261 filing | Apr 29, 2026 | SEC |
| Vanguard Capital Management LLC | 13G | 5.30%4.49M shares | New | Apr 30, 20261 filing | Apr 30, 2026 | SEC |
Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.
13D and 13G filings
13 Schedule 13D and 13G filings on Guidewire Software, Inc., newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| May 15, 20262:02 PM ET | Bamco Incand 3 others | 13G/A | 7.79%6.59M shares | +1.74 ppfrom 6.05% | Mar 31, 2026 | SEC |
| May 15, 202610:26 AM ET | Linonia Partnership LPand 3 others | 13G/A | 9.00%7.65M shares | +2.70 ppfrom 6.30% | Mar 31, 2026 | SEC |
| May 14, 20264:03 PM ET | Massachusetts Financial Services Co | 13G/A | 3.50%3.00M shares | −1.80 ppfrom 5.30%Below 5% | Mar 31, 2026 | SEC |
| Apr 30, 202610:33 AM ET | Vanguard Capital Management LLC | 13G | 5.30%4.49M shares | New | Mar 31, 2026 | SEC |
| Apr 29, 20261:40 PM ET | Vanguard Portfolio Management LLC | 13G | 5.45%4.62M shares | New | Mar 31, 2026 | SEC |
| Mar 27, 20269:32 AM ET | Vanguard Group Inc | 13G/A | 0.00%0 shares | –Below 5% | Mar 13, 2026 | SEC |
| Feb 17, 20264:19 PM ET | Linonia Partnership LPand 3 others | 13G/A | 6.30%5.36M shares | +1.30 ppfrom 5.00% | Dec 31, 2025 | SEC |
| Feb 17, 20269:34 AM ET | Bamco Incand 3 others | 13G/A | 6.05%5.15M shares | −1.22 ppfrom 7.27% | Dec 31, 2025 | SEC |
| Sep 29, 20254:49 PM ET | Linonia Partnership LPand 3 others | 13G | 5.00%4.24M shares | New | Sep 26, 2025 | SEC |
| Jul 2, 20256:10 PM ET | BlackRock, Inc. | 13G/A | 10.20%8.60M shares | +0.40 ppfrom 9.80% | Jun 30, 2025 | SEC |
| Apr 17, 20259:35 AM ET | BlackRock, Inc. | 13G/A | 9.80%8.19M shares | – | Mar 31, 2025 | SEC |
| Feb 13, 202510:09 AM ET | Massachusetts Financial Services Co | 13G | 5.30%4.44M shares | New | Dec 31, 2024 | SEC |
| Nov 14, 202410:06 AM ET | Bamco Incand 3 others | 13G/A | 7.27%6.01M shares | – | Sep 30, 2024 | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell Guidewire Software, Inc. shares.
No Form 144 notices for Guidewire Software, Inc. are on file.