Latest Period
Q1 2026
Security Snapshot
ASSURED GUARANTY LTD - Common Stock (AGO) Institutional Ownership
CUSIP: G0585R106
13F Institutional Holders and Ownership History from Q1 2014 to Q1 2026
Institutions Reporting
368
Shares (Excl. Options)
40,939,667
Price
$81.48
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- Security type / class
- Equity / Common Stock
- Symbol
- AGO on NYSE
- All holders as of 31 Mar 2026
- Q1 2026
- Total 13F shares
- 40,939,667
- Total 13F value
- $3,335,644,106
- Portfolio coverage rank
- 0%
- Share change
- -413,395
- Value change
- -$42,383,440
- Number of holders
- 368
- Shares outstanding
- 44,867,991
- SEC-reported price per share
- $75.55
- Insider filing price
- $75.55
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
3 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Key facts
- AGO - ASSURED GUARANTY LTD - Common Stock is tracked under CUSIP G0585R106.
- 368 institutions reported positions in Q1 2026.
- 5 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 363 to 368 between Q4 2025 and Q1 2026.
- SEC-reported value moved from $3,720,904,452 to $3,335,644,106.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 368 institutions filings for Q1 2026.
Security key
G0585R106
Latest holder period
Q1 2026
13F holders
368
13D/G owners
5
CIK / CUSIP context first
Open Q1 2026 holders
AGO full holder history
ASSURED GUARANTY LTD SEC filings
ASSURED GUARANTY LTD company facts
ASSURED GUARANTY LTD insider transactions
ASSURED GUARANTY LTD 13D/G history
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP G0585R106:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
5
Security
AGO
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| BlackRock, Inc. | 11% | $468,232,877 | 5,375,808 | BlackRock, Inc. | 30 Jun 2025 | |||
| VANGUARD PORTFOLIO MANAGEMENT LLC | 8.8% | $322,079,848 | 3,952,870 | Vanguard Portfolio Management | 31 Mar 2026 | |||
| VANGUARD CAPITAL MANAGEMENT LLC | 5.1% | $187,218,292 | 2,297,718 | Vanguard Capital Management | 31 Mar 2026 | |||
| WELLINGTON MANAGEMENT GROUP LLP | 1.3% | -78% | $55,160,588 | -$210,219,410 | 613,782 | -79% | Wellington Management Group LLP | 31 Dec 2025 |
| FRANKLIN RESOURCES INC | 1% | $43,382,436 | 488,651 | Franklin Resources, Inc. | 30 Sep 2024 |
As of 31 Mar 2026, 368 institutional investors reported holding 40,939,667 shares of ASSURED GUARANTY LTD - Common Stock (AGO). This represents 91% of the company’s total 44,867,991 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
70%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| BlackRock, Inc. | 13% | 5,780,463 | +3.9% | 0.01% | $470,992,116 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 8.7% | 3,925,791 | 0% | 0.02% | $319,873,451 |
| DIMENSIONAL FUND ADVISORS LP | 6.7% | 3,011,751 | -4.5% | 0.05% | $245,394,330 |
| VANGUARD CAPITAL MANAGEMENT LLC | 4.4% | 1,965,693 | 0% | 0% | $160,164,666 |
| River Road Asset Management, LLC | 4.2% | 1,891,378 | +0.29% | 1.7% | $154,109,479 |
| STATE STREET CORP | 3.5% | 1,572,236 | -1.5% | 0% | $128,105,789 |
| FIRST TRUST ADVISORS LP | 3% | 1,356,635 | -7.3% | 0.08% | $110,538,619 |
| AMERICAN CENTURY COMPANIES INC | 2.9% | 1,316,129 | +8.6% | 0.06% | $107,238,191 |
| REINHART PARTNERS, LLC. | 2.9% | 1,287,173 | +1.9% | 3% | $104,880,088 |
| ROYCE & ASSOCIATES LP | 2.2% | 982,147 | -0.13% | 0.79% | $80,025,338 |
| AQR CAPITAL MANAGEMENT LLC | 1.9% | 860,440 | +64% | 0.03% | $69,816,117 |
| FULLER & THALER ASSET MANAGEMENT, INC. | 1.9% | 849,653 | -3.7% | 0.23% | $69,229,732 |
| PRINCIPAL FINANCIAL GROUP INC | 1.7% | 780,573 | -3.1% | 0.03% | $63,601,600 |
| GEODE CAPITAL MANAGEMENT, LLC | 1.6% | 734,344 | -3.9% | 0% | $59,849,916 |
| Boston Partners | 1.3% | 575,890 | -25% | 0.05% | $46,888,410 |
| GOLDMAN SACHS GROUP INC | 1.3% | 571,350 | +33% | 0.01% | $46,553,599 |
| MORGAN STANLEY | 1.3% | 570,014 | -4.2% | 0% | $46,444,835 |
| TWO SIGMA INVESTMENTS, LP | 1.2% | 523,381 | +63% | 0.04% | $42,645,084 |
| Quantinno Capital Management LP | 1.1% | 499,347 | +33% | 0.07% | $40,686,822 |
| NORTHERN TRUST CORP | 1% | 448,294 | +0.28% | 0% | $36,526,996 |
| RAYMOND JAMES FINANCIAL INC | 0.93% | 416,019 | -17% | 0.01% | $33,719,689 |
| BROWN ADVISORY INC | 0.9% | 404,935 | -7.3% | 0.05% | $32,994,034 |
| FRANKLIN RESOURCES INC | 0.86% | 384,457 | +41% | 0.01% | $31,325,556 |
| Long Focus Capital Management, LLC | 0.85% | 380,000 | 0% | 1.4% | $30,962,400 |
| WELLINGTON MANAGEMENT GROUP LLP | 0.82% | 367,675 | -40% | 0.01% | $29,958,159 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
49
Latest
Q1 2026
Rows shown
1-25 of 49
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q1 | 40,939,667 | $3,335,644,106 | -$42,383,440 | $81.48 | 368 |
| 2025 Q4 | 41,409,110 | $3,720,904,452 | -$138,650,781 | $89.87 | 363 |
| 2025 Q3 | 42,888,042 | $3,629,984,528 | -$144,684,477 | $84.65 | 334 |
| 2025 Q2 | 44,733,051 | $3,891,430,718 | -$39,362,965 | $87.10 | 349 |
| 2025 Q1 | 45,196,038 | $3,980,316,814 | -$114,384,797 | $88.10 | 327 |
| 2024 Q4 | 46,810,367 | $4,212,013,117 | +$39,254,101 | $90.01 | 322 |
| 2024 Q3 | 46,644,230 | $3,717,669,570 | -$112,827,074 | $79.52 | 321 |
| 2024 Q2 | 48,244,624 | $3,722,920,076 | -$162,510,004 | $77.15 | 323 |
| 2024 Q1 | 50,092,869 | $4,368,557,520 | +$351,525,468 | $87.25 | 331 |
| 2023 Q4 | 51,120,670 | $3,826,190,886 | -$70,001,697 | $74.83 | 280 |
| 2023 Q3 | 52,104,998 | $3,153,254,827 | -$29,125,082 | $60.52 | 255 |
| 2023 Q2 | 52,689,346 | $2,939,542,708 | -$23,733,628 | $55.80 | 263 |
| 2023 Q1 | 53,197,807 | $2,674,912,640 | -$3,269,988 | $50.27 | 259 |
| 2022 Q4 | 52,862,024 | $3,290,900,438 | -$112,152,134 | $62.26 | 259 |
| 2022 Q3 | 54,854,519 | $2,659,236,857 | -$120,781,358 | $48.45 | 241 |
| 2022 Q2 | 57,196,894 | $3,191,485,601 | -$135,975,378 | $55.79 | 251 |
| 2022 Q1 | 60,070,407 | $3,822,445,809 | -$165,329,522 | $63.66 | 255 |
| 2021 Q4 | 62,640,121 | $3,144,422,581 | -$180,382,378 | $50.20 | 254 |
| 2021 Q3 | 65,644,013 | $3,074,008,373 | -$146,032,717 | $46.81 | 238 |
| 2021 Q2 | 69,074,667 | $3,279,324,277 | -$87,276,941 | $47.48 | 227 |
| 2021 Q1 | 70,685,809 | $2,990,598,812 | -$151,886,217 | $42.28 | 239 |
| 2020 Q4 | 74,857,903 | $2,357,398,461 | +$56,555,405 | $31.49 | 221 |
| 2020 Q3 | 74,362,956 | $1,595,811,591 | -$59,614,445 | $21.48 | 195 |
| 2020 Q2 | 77,163,247 | $1,881,329,011 | -$141,577,811 | $24.41 | 207 |
| 2020 Q1 | 82,809,477 | $2,135,712,871 | -$212,331,086 | $25.79 | 230 |