Assured Guaranty Ltd
AGO- Exchange
- NYSE
- Industry
- Surety Insurance
- SEC CIK
- 0001273813
No open-market purchases or sales by Assured Guaranty Ltd insiders were filed in the last 90 days; 370 institutions reported holding it in 13F filings for Q2 2026, worth $3.31B in total; Chou Associates is the only superinvestor holding it.
Holders of 5% or more of AGO
Holders whose latest Schedule 13D or 13G filing reports 5% or more of Assured Guaranty Ltd, 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 | 11.00%5.38M shares | – | Jul 18, 20251 filing | Jul 18, 2025 | SEC |
| Vanguard Portfolio Management LLC | 13G | 8.81%3.95M shares | New | Apr 28, 20261 filing | Apr 28, 2026 | SEC |
| Vanguard Capital Management LLC | 13G | 5.12%2.30M shares | New | Apr 28, 20261 filing | Apr 28, 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
18 Schedule 13D and 13G filings on Assured Guaranty Ltd, newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Apr 28, 20262:45 PM ET | Vanguard Portfolio Management LLC | 13G | 8.81%3.95M shares | New | Mar 31, 2026 | SEC |
| Apr 28, 202611:32 AM ET | Vanguard Capital Management LLC | 13G | 5.12%2.30M shares | New | Mar 31, 2026 | SEC |
| Mar 26, 20261:16 PM ET | Vanguard Group Inc | 13G/A | 0.00%0 shares | –Below 5% | Mar 13, 2026 | SEC |
| Feb 10, 202611:23 AM ET | Wellington Management Group LLPand 2 others | 13G/A | 1.30%613.8K shares | −4.70 ppfrom 6.00%Below 5% | Dec 31, 2025 | SEC |
| Aug 12, 202510:34 AM ET | Wellington Management Group LLPand 3 others | 13G/A | 6.00%2.95M shares | – | Jun 30, 2025 | SEC |
| Jul 18, 20251:18 PM ET | BlackRock, Inc. | 13G/A | 11.00%5.38M shares | – | Jun 30, 2025 | SEC |
| Feb 26, 20253:22 PM ET | Franklin Resources Incand 2 others | 13G | 1.00%488.7K shares | NewBelow 5% | Sep 30, 2024 | SEC |
| Feb 14, 2022 | Putnam Investments LLC | 13G/AOld format | – | – | – | SEC |
| Feb 9, 2022 | Vanguard Group Inc | 13G/AOld format | – | – | – | SEC |
| Feb 8, 2022 | Dimensional Fund Advisors LP | 13GOld format | – | New | – | SEC |
| Feb 4, 2022 | Wellington Management Group LLP | 13G/AOld format | – | – | – | SEC |
| Aug 9, 20213:23 PM ET | BlackRock Inc. | 13G/AOld format | – | – | – | SEC |
| Mar 10, 2021 | Wellington Management Group LLP | 13G/AOld format | – | – | – | SEC |
| Feb 17, 2021 | Thrivent Financial for Lutherans | 13GOld format | – | New | – | SEC |
| Feb 16, 2021 | Putnam Investments LLC | 13G/AOld format | – | – | – | SEC |
| Feb 10, 2021 | Vanguard Group Inc | 13G/AOld format | – | – | – | SEC |
| Feb 3, 2021 | Wellington Management Group LLP | 13G/AOld format | – | – | – | SEC |
| Feb 2, 20213:13 PM ET | BlackRock Inc. | 13GOld format | – | New | – | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell Assured Guaranty Ltd shares.
No Form 144 notices for Assured Guaranty Ltd are on file.