Assured Guaranty Ltd.
US ˙ NYSE ˙ BMG0585R1060

SecurityAGO / Assured Guaranty Ltd.
InstitutionNorthern Trust Corp
Latest Disclosed Ownership448,294 shares
Latest Disclosed Value $ 36,526,996
Northern Trust Corp reports 0.28% increase in ownership of AGO / Assured Guaranty Ltd.

On May 14, 2026 - Northern Trust Corp filed a 13F-HR form disclosing ownership of 448,294 shares of Assured Guaranty Ltd. (US:AGO) valued at $36,526,995 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 447,045 shares of Assured Guaranty Ltd.. This represents a change in shares of 0.28% during the quarter. The current value of the position is $33,115,478 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-14 2026-03-31 13F ASSURED GUARANTY COM G0585R106 448,294 1,249 0.28 36,527 -9.08 0.0010
2026-02-17 2025-12-31 13F ASSURED GUARANTY COM G0585R106 447,045 -35,104 -7.28 40,176 -1.56 0.0011
2025-11-14 2025-09-30 13F ASSURED GUARANTY COM G0585R106 482,149 -9,959 -2.02 40,814 -4.78 0.0052
2025-08-13 2025-06-30 13F ASSURED GUARANTY COM G0585R106 492,108 -89,813 -15.43 42,863 -16.39 0.0059
2025-05-13 2025-03-31 13F ASSURED GUARANTY COM G0585R106 581,921 48,631 9.12 51,267 6.80 0.0076
2025-02-14 2024-12-31 13F ASSURED GUARANTY COM G0585R106 533,290 63,375 13.49 48,001 28.46 0.0068
2024-11-13 2024-09-30 13F ASSURED GUARANTY COM G0585R106 469,915 -25,247 -5.10 37,368 -2.18 0.0061
2024-08-14 2024-06-30 13F ASSURED GUARANTY COM G0585R106 495,162 13,902 2.89 38,202 -9.02 0.0064
2024-05-14 2024-03-31 13F ASSURED GUARANTY COM G0585R106 481,260 -4,129 -0.85 41,990 15.61 0.0073
2024-02-13 2023-12-31 13F ASSURED GUARANTY COM G0585R106 485,389 1,654 0.34 36,322 24.07 0.0066
2023-11-13 2023-09-30 13F ASSURED GUARANTY COM G0585R106 483,735 -2,524 -0.52 29,276 7.89 0.0057
2023-08-11 2023-06-30 13F ASSURED GUARANTY COM G0585R106 486,259 -5,314 -1.08 27,133 9.80 0.0052
2023-05-15 2023-03-31 13F ASSURED GUARANTY COM G0585R106 491,573 175 0.04 24,711 -19.23 0.0049
2023-02-13 2022-12-31 13F ASSURED GUARANTY COM G0585R106 491,398 56,717 13.05 30,594 45.27 0.0064
2022-11-14 2022-09-30 13F ASSURED GUARANTY COM G0585R106 434,681 33,465 8.34 21,060 -5.91 0.0048
2022-08-12 2022-06-30 13F ASSURED GUARANTY COM G0585R106 401,216 -46,006 -10.29 22,384 -21.38 0.0048
2022-05-13 2022-03-31 13F ASSURED GUARANTY COM G0585R106 447,222 -55,894 -11.11 28,470 12.73 0.0050
2022-02-08 2021-12-31 13F ASSURED GUARANTY COM G0585R106 503,116 10,564 2.14 25,255 9.53 0.0041
2021-11-15 2021-09-30 13F ASSURED GUARANTY COM G0585R106 492,552 -220,110 -30.89 23,057 -31.86 0.0041
2021-08-13 2021-06-30 13F ASSURED GUARANTY COM G0585R106 712,662 18,260 2.63 33,837 15.25 0.0060
2021-05-12 2021-03-31 13F ASSURED GUARANTY COM G0585R106 694,402 52,677 8.21 29,360 45.30 0.0055
2021-02-11 2020-12-31 13F ASSURED GUARANTY COM G0585R106 641,725 -61,948 -8.80 20,207 33.69 0.0039
2020-11-16 2020-09-30 13F ASSURED GUARANTY COM G0585R106 703,673 -301,115 -29.97 15,115 -38.38 0.0033
2020-08-14 2020-06-30 13F ASSURED GUARANTY COM G0585R106 1,004,788 -122,853 -10.89 24,528 -15.66 0.0058
2020-05-14 2020-03-31 13F ASSURED GUARANTY COM G0585R106 1,127,641 30,668 2.80 29,081 -45.92 0.0083
2020-02-14 2019-12-31 13F ASSURED GUARANTY COM G0585R106 1,096,973 -304,455 -21.72 53,774 -13.70 0.0120
2019-11-13 2019-09-30 13F ASSURED GUARANTY COM G0585R106 1,401,428 -36,775 -2.56 62,308 2.96 0.0149
2019-08-13 2019-06-30 13F ASSURED GUARANTY COM G0585R106 1,438,203 -13,901 -0.96 60,519 -6.20 0.0144
2019-05-13 2019-03-31 13F ASSURED GUARANTY COM G0585R106 1,452,104 32,535 2.29 64,517 18.73 0.0159
2019-02-12 2018-12-31 13F ASSURED GUARANTY COM G0585R106 1,419,569 651,982 84.94 54,341 67.64 0.0152
2018-11-14 2018-09-30 13F ASSURED GUARANTY COM G0585R106 767,587 -232,824 -23.27 32,415 -9.31 0.0079
2018-09-18 2018-06-30 13F/A-1 ASSURED GUARANTY COM G0585R106 1,000,411 24,924 2.56 35,744 1.22 0.0091
2018-08-14 2018-06-30 13F ASSURED GUARANTY COM G0585R106 1,009,078 33,591 36,053
2018-05-09 2018-03-31 13F ASSURED GUARANTY COM G0585R106 975,487 25,470 2.68 35,313 9.74 0.0092
2018-02-14 2017-12-31 13F ASSURED GUARANTY COM G0585R106 950,017 -39,371 -3.98 32,178 -13.85 0.0081
2017-11-13 2017-09-30 13F ASSURED GUARANTY COM G0585R106 989,388 -22,312 -2.21 37,349 -11.55 0.0097
2017-08-11 2017-06-30 13F ASSURED GUARANTY COM G0585R106 1,011,700 -52,587 -4.94 42,228 6.92 0.0118
2017-05-12 2017-03-31 13F ASSURED GUARANTY COM G0585R106 1,064,287 41,574 4.07 39,496 2.25 0.0114
2017-02-13 2016-12-31 13F ASSURED GUARANTY COM G0585R106 1,022,713 -48,195 -4.50 38,628 29.99 0.0118
2016-11-09 2016-09-30 13F ASSURED GUARANTY COM G0585R106 1,070,908 5,200 0.49 29,717 9.91 0.0093
2016-08-12 2016-06-30 13F ASSURED GUARANTY COM G0585R106 1,065,708 -24,525 -2.25 27,037 -1.88 0.0088
2016-08-19 2016-03-31 13F/A-1 ASSURED GUARANTY COM G0585R106 1,090,233 18,086 1.69 27,554 -2.77 0.0091
2016-05-13 2016-03-31 13F Assured Guaranty COMM G0585R106 1,090,225 27,583
2016-02-12 2015-12-31 13F Assured Guaranty COMM G0585R106 1,072,147 2,043 0.19 28,338 5.92 0.0094
2015-11-12 2015-09-30 13F Assured Guaranty COMM G0585R106 1,070,104 1,070,104 0.00 26,753 0.0089
2015-08-13 2015-06-30 13F Assured Guaranty COMM G0585R106 0 -812,257 -100.00 0 -100.00
2015-05-14 2015-03-31 13F Assured Guaranty COMM G0585R106 812,257 38,990 5.04 21,434 6.65 0.0064
2015-02-12 2014-12-31 13F Assured Guaranty COM G0585R106 773,267 28,393 3.81 20,098 21.75 0.0061
2014-11-13 2014-09-30 13F Assured Guaranty COMM G0585R106 744,874 -13,578 -1.79 16,507 -11.17 0.0052
2014-08-14 2014-06-30 13F ASSURED GUARANTY com G0585R106 758,452 42,604 5.95 18,582 2.52 0.0058
2014-05-14 2014-03-31 13F ASSURED GUARANTY COMM G0585R106 715,848 9,149 1.29 18,125 8.72 0.0057
2014-02-21 2013-12-31 13F/A-1 ASSURED GUARANTY COM G0585R106 706,699 -13,477 -1.87 16,671 23.46 0.0053
2014-02-12 2013-12-31 13F ASSURED GUARANTY COM G0585R106 706,699 16,671
2013-11-13 2013-09-30 13F ASSURED GUARANTY COM G0585R106 720,176 -294,131 -29.00 13,503 -39.65 0.0048
2013-08-09 2013-06-30 13F ASSURED GUARANTY COM G0585R106 1,014,307 1,014,307 22,375 0.0081
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.