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AGO

Assured Guaranty Ltd

Company with tickers: AGO

CIK
1273813
CUSIP
G0585R106
Shares Outstanding
44,282,464
Price History Institutional Holders Short Volume Short Interest Fails to Deliver Financials SEC Filings Earnings Calls Insider Trades Congressional Trades
Holders: 359
Total Value: $2,517,079,507
Total Shares: 30,891,995
Showing 1–100 of 362 holdings by value · page 1 of 4

Institutional Ownership Trend

25 quarters

Holder Concentration

Across 359 13F filers · Δ vs Dec 31, 2025
Top Holder
18.7%
+2.8 pts
Top 5
38.6%
−0.6 pts
Top 10
54.0%
+0.4 pts
HHI
541
Broadly held +55

Quarterly Activity

vs Dec 31, 2025
New
352
Increased
6
Decreased
1
Sold Out
354
Unchanged
0
Holder count: -2
Institutional value: -19.7%
Shares held: -11.4%

Top Buyers

vs Dec 31, 2025
Institution Added Now Holds
Mega GOLDMAN SACHS GROUP INC +142,524 571,350
Large Corient Private Wealth LLC +49,624 74,358
Mega HSBC HOLDINGS PLC +37,946 88,939
Large Rockefeller Capital Management L.P. +2,960 3,314
Small Caitong International Asset Management Co., Ltd +1,688 3,404

Top Sellers

vs Dec 31, 2025
Institution Sold Now Holds
Small Essential Partners LLC −96 175

Top New Positions

vs Dec 31, 2025
Institution Acquired Value (USD)
Mega BlackRock, Inc. 5,780,463 $470,992,115
Mid River Road Asset Management, LLC 1,891,378 $154,109,479
Mega STATE STREET CORP 1,572,236 $128,105,789
Mega FIRST TRUST ADVISORS LP 1,356,635 $110,538,619
Mega AMERICAN CENTURY COMPANIES INC 1,316,129 $107,238,190

Top Sold-Out Positions

vs Dec 31, 2025
Institution Previously Held Last Value (USD)
Mega BlackRock, Inc. 5,562,344 $499,887,847
Mega DIMENSIONAL FUND ADVISORS LP 3,153,683 $283,421,488
Mid River Road Asset Management, LLC 1,885,863 $169,482,507
Mega STATE STREET CORP 1,596,636 $143,489,677
Mega FIRST TRUST ADVISORS LP 1,464,219 $131,589,361
100 of 100 shown
All Common Calls Puts
Export CSV
Holder Value (USD) % of 13F Shares Action
Mega BlackRock, Inc. $470,992,115 18.71% 5,780,463 View
Mid River Road Asset Management, LLC $154,109,479 6.12% 1,891,378 View
Mega STATE STREET CORP $128,105,789 5.09% 1,572,236 View
Mega FIRST TRUST ADVISORS LP $110,538,619 4.39% 1,356,635 View
Mega AMERICAN CENTURY COMPANIES INC $107,238,190 4.26% 1,316,129 View
Mid REINHART PARTNERS, LLC. $104,878,856 4.17% 1,287,173 View
Mid ROYCE & ASSOCIATES LP $80,025,337 3.18% 982,147 View
Mega AQR CAPITAL MANAGEMENT LLC $70,108,648 2.79% 860,440 View
Large FULLER & THALER ASSET MANAGEMENT, INC. $69,229,726 2.75% 849,653 View
Mega PRINCIPAL FINANCIAL GROUP INC $63,601,087 2.53% 780,573 View
Mega GEODE CAPITAL MANAGEMENT, LLC $59,834,349 2.38% 734,344 View
Large Boston Partners $46,923,516 1.86% 575,890 View
Mega GOLDMAN SACHS GROUP INC $46,553,597 1.85% 571,350 View
Mega TWO SIGMA INVESTMENTS, LP $42,645,083 1.69% 523,381 View
Large Quantinno Capital Management LP $40,686,793 1.62% 499,347 View
Mega RAYMOND JAMES FINANCIAL INC $33,897,226 1.35% 416,019 View
Large BROWN ADVISORY INC $32,994,103 1.31% 404,935 View
Mega FRANKLIN RESOURCES INC $31,325,554 1.24% 384,457 View
Mid Long Focus Capital Management, LLC $30,962,400 1.23% 380,000 View
Mega WELLINGTON MANAGEMENT GROUP LLP $29,958,156 1.19% 367,675 View
Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC $29,695,711 1.18% 364,454 View
Mega BANK OF AMERICA CORP /DE/ $29,316,502 1.16% 359,800 View
Large Qube Research & Technologies Ltd $27,082,322 1.08% 332,380 View
Mega Bank of New York Mellon Corp $24,297,575 0.97% 298,203 View
Mega MORGAN STANLEY $22,830,613 0.91% 280,199 View
Large Gotham Asset Management, LLC $22,193,766 0.88% 272,383 View
Mega ARROWSTREET CAPITAL, LIMITED PARTNERSHIP $20,734,297 0.82% 254,471 View
Mid GENDELL JEFFREY L $19,996,984 0.79% 245,422 View
Mega BARCLAYS PLC $19,737,631 0.78% 242,239 View
Large Man Group plc $16,615,074 0.66% 203,916 View
Mega Invesco Ltd. $16,083,334 0.64% 197,390 View
Large Public Sector Pension Investment Board $15,330,869 0.61% 188,155 View
Mega BNP PARIBAS ARBITRAGE, SA $13,964,449 0.55% 171,385 View
Small LRI Investments, LLC $13,856,896 0.55% 170,065 View
Mega UBS Group AG $12,994,428 0.52% 159,480 View
Mega UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC $11,856,884 0.47% 145,519 View
Large SG Americas Securities, LLC $11,018,784 0.44% 135,233 View
Mega DIMENSIONAL FUND ADVISORS LP $10,859,245 0.43% 133,275 View
Large Allianz Asset Management GmbH $10,778,744 0.43% 132,287 View
Mega D. E. Shaw & Co., Inc. $10,752,018 0.43% 131,959 View
Large Russell Investments Group, Ltd. $10,665,893 0.42% 130,902 View
Mega AMERIPRISE FINANCIAL INC $10,629,553 0.42% 130,456 View
Mega CITADEL ADVISORS LLC $10,377,781 0.41% 127,366 View
Mega California Public Employees Retirement System $10,347,960 0.41% 127,000 View
Mega VICTORY CAPITAL MANAGEMENT INC $10,233,236 0.41% 125,592 View
Mega Clearbridge Investments, LLC $9,987,166 0.40% 122,572 View
Mid Cambria Investment Management, L.P. $9,016,332 0.36% 110,657 View
Mega WELLS FARGO & COMPANY/MN $8,934,362 0.35% 109,651 View
Mega RHUMBLINE ADVISERS $8,677,457 0.34% 106,498 View
Mega Legal & General Group Plc $8,271,767 0.33% 101,519 View
Mega JPMORGAN CHASE & CO $7,757,709 0.31% 95,210 View
Large Robeco Institutional Asset Management B.V. $7,748,666 0.31% 95,099 View
Mega ENVESTNET ASSET MANAGEMENT INC $7,692,526 0.31% 94,410 View
Mega HSBC HOLDINGS PLC $7,246,749 0.29% 88,939 View
Large CAPITOLIS LIQUID GLOBAL MARKETS LLC $7,080,612 0.28% 86,900 View
Mega Swiss National Bank $7,056,168 0.28% 86,600 View
Mega Nuveen, LLC $6,768,461 0.27% 83,069 View
Mid Vest Financial, LLC $6,566,310 0.26% 80,588 View
Large TEACHER RETIREMENT SYSTEM OF TEXAS $6,475,460 0.26% 79,473 View
Mega MANUFACTURERS LIFE INSURANCE COMPANY, THE $6,442,542 0.26% 79,069 View
Large HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC $6,440,586 0.26% 79,045 View
Large Corient Private Wealth LLC $6,058,689 0.24% 74,358 View
Mega FMR LLC $6,047,933 0.24% 74,226 View
Large Bridgewater Associates, LP $5,821,501 0.23% 71,447 View
Large Trexquant Investment LP $5,030,819 0.20% 61,743 View
Mid EULAV Asset Management $4,888,800 0.19% 60,000 View
Large BANK OF NOVA SCOTIA $4,881,385 0.19% 59,909 View
Large STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM $4,746,861 0.19% 58,258 View
Mega Amundi $4,604,434 0.18% 56,510 View
Large Cerity Partners LLC $4,443,021 0.18% 54,529 View
Large CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM $4,041,652 0.16% 49,603 View
Mega ALLIANCEBERNSTEIN L.P. $4,000,749 0.16% 49,101 View
Mid Magnetar Financial LLC $3,946,157 0.16% 48,431 View
Mid NORTHERN TRUST CORP $3,910,551 0.16% 47,994 View
Mid XTX Topco Ltd $3,857,426 0.15% 47,342 View
Large CAPITAL FUND MANAGEMENT S.A. $3,483,514 0.14% 42,753 View
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $3,365,124 0.13% 41,300 View
Large SEI INVESTMENTS CO $3,298,880 0.13% 40,487 View
Mega PRICE T ROWE ASSOCIATES INC /MD/ $3,289,021 0.13% 40,366 View
Small De Lisle Partners LLP $3,236,467 0.13% 39,721 View
Mid Hillsdale Investment Management Inc. $3,079,944 0.12% 37,800 View
Large STATE OF WISCONSIN INVESTMENT BOARD $3,006,449 0.12% 36,898 View
Small VELA Investment Management, LLC $2,916,250 0.12% 35,791 View
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $2,900,688 0.12% 35,600 View
Mid HARBOR CAPITAL ADVISORS, INC. $2,756,957 0.11% 33,836 View
Large WEALTH ENHANCEMENT ADVISORY SERVICES, LLC $2,538,998 0.10% 31,161 View
Large TUDOR INVESTMENT CORP ET AL $2,465,829 0.10% 30,263 View
Large NEW YORK STATE COMMON RETIREMENT FUND $2,387,608 0.09% 29,303 View
Large NATIXIS $2,373,919 0.09% 29,135 View
Mid Verdence Capital Advisors LLC $2,361,453 0.09% 28,982 View
Large State of New Jersey Common Pension Fund D $2,112,776 0.08% 25,930 View
Mid HANCOCK WHITNEY CORP $2,053,051 0.08% 25,197 View
Large Focus Partners Wealth $2,034,555 0.08% 24,970 View
Mega CITIGROUP INC $1,953,726 0.08% 23,978 View
Mid State of Alaska, Department of Revenue $1,920,075 0.08% 23,565 View
Mid Illinois Municipal Retirement Fund $1,833,300 0.07% 22,500 View
Large Creative Planning $1,830,448 0.07% 22,465 View
Mid INTECH INVESTMENT MANAGEMENT LLC $1,829,307 0.07% 22,451 View
Mid Oak Thistle LLC $1,810,893 0.07% 22,225 View
Large KLP KAPITALFORVALTNING AS $1,751,820 0.07% 21,500 View
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