Assured Guaranty Ltd.
US ˙ NYSE ˙ BMG0585R1060

SecurityAGO / Assured Guaranty Ltd.
InstitutionJanus Henderson Group Plc
Latest Disclosed Ownership20,865 shares
Latest Disclosed Value $ 1,701,332
Janus Henderson Group Plc ownership in AGO / Assured Guaranty Ltd.

On May 18, 2026 - Janus Henderson Group Plc filed a 13F-HR/A form disclosing ownership of 20,865 shares of Assured Guaranty Ltd. (US:AGO) valued at $1,700,080 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 20,865 shares of Assured Guaranty Ltd.. This represents a change in shares of 0.00% during the quarter. The current value of the position is $1,541,298 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)
2026-05-18 2026-03-31 13F/A-1 ASSURED GUARANTY COM G0585R106 20,865 0 0.00 1,701 -9.23 0.0008
2026-05-15 2026-03-31 13F ASSURED GUARANTY COM G0585R106 20,865 0 1,701 0.0003
2026-02-17 2025-12-31 13F ASSURED GUARANTY COM G0585R106 20,865 0 0.00 1,875 6.12 0.0008
2025-11-14 2025-09-30 13F ASSURED GUARANTY COM G0585R106 20,865 0 0.00 1,767 -2.70 0.0008
2025-08-14 2025-06-30 13F ASSURED GUARANTY COM G0585R106 20,865 0 0.00 1,816 -0.33 0.0009
2025-05-15 2025-03-31 13F ASSURED GUARANTY COM G0585R106 20,865 -3,200 -13.30 1,822 -15.93 0.0010
2025-02-14 2024-12-31 13F ASSURED GUARANTY COM G0585R106 24,065 -1,400 -5.50 2,167 6.96 0.0011
2024-11-14 2024-09-30 13F ASSURED GUARANTY COM G0585R106 25,465 0 0.00 2,025 3.05 0.0010
2024-08-14 2024-06-30 13F ASSURED GUARANTY COM G0585R106 25,465 -283 -1.10 1,965 -12.47 0.0011
2024-05-15 2024-03-31 13F ASSURED GUARANTY COM G0585R106 25,748 -2 -0.01 2,245 16.56 0.0012
2024-02-14 2023-12-31 13F ASSURED GUARANTY COM G0585R106 25,750 -43 -0.17 1,926 23.38 0.0011
2023-11-14 2023-09-30 13F ASSURED GUARANTY COM G0585R106 25,793 1 0.00 1,562 8.40 0.0010
2023-08-14 2023-06-30 13F ASSURED GUARANTY COM G0585R106 25,792 -39 -0.15 1,440 10.94 0.0009
2023-05-15 2023-03-31 13F ASSURED GUARANTY COM G0585R106 25,831 14,300 124.01 1,298 81.03 0.0009
2023-02-14 2022-12-31 13F ASSURED GUARANTY COM G0585R106 11,531 0 0.00 718 28.26 0.0005
2023-01-13 2022-09-30 13F/A-1 ASSURED GUARANTY COM G0585R106 11,531 -1,801 -13.51 559 -24.76 0.0004
2022-11-14 2022-09-30 13F ASSURED GUARANTY COM G0585R106 11,531 -1,801 559 0.0004
2022-08-15 2022-06-30 13F ASSURED GUARANTY COM G0585R106 13,332 -39,308 -74.67 743 -77.83 0.0005
2022-05-16 2022-03-31 13F ASSURED GUARANTY COM G0585R106 52,640 -19 -0.04 3,351 26.74 0.0016
2022-02-14 2021-12-31 13F ASSURED GUARANTY COM G0585R106 52,659 -27,739 -34.50 2,644 -29.76 0.0011
2021-11-16 2021-09-30 13F ASSURED GUARANTY COM G0585R106 80,398 -63,143 -43.99 3,764 -44.77 0.0016
2021-08-16 2021-06-30 13F ASSURED GUARANTY COM G0585R106 143,541 40,771 39.67 6,815 56.85 0.0029
2021-05-17 2021-03-31 13F ASSURED GUARANTY COM G0585R106 102,770 22,386 27.85 4,345 71.67 0.0020
2021-02-16 2020-12-31 13F ASSURED GUARANTY COM G0585R106 80,384 1,057 1.33 2,531 48.53 0.0012
2020-11-16 2020-09-30 13F ASSURED GUARANTY COM G0585R106 79,327 79,327 1,704 0.0009
2020-08-14 2020-06-30 13F ASSURED GUARANTY COM G0585R106 0 -18,219 -100.00 0 -100.00
2020-05-14 2020-03-31 13F ASSURED GUARANTY COM G0585R106 18,219 9,631 112.14 470 11.64 0.0003
2020-02-18 2019-12-31 13F ASSURED GUARANTY COM G0585R106 8,588 -84,719 -90.80 421 -89.85 0.0002
2019-11-14 2019-09-30 13F ASSURED GUARANTY COM G0585R106 93,307 13,170 16.43 4,148 23.01 0.0022
2019-07-31 2019-06-30 13F ASSURED GUARANTY COM G0585R106 80,137 14,501 22.09 3,372 15.64 0.0018
2019-04-30 2019-03-31 13F ASSURED GUARANTY COM G0585R106 65,636 -108 -0.16 2,916 15.85 0.0016
2019-02-06 2018-12-31 13F ASSURED GUARANTY COM G0585R106 65,744 57,144 664.47 2,517 593.39 0.0016
2018-11-09 2018-09-30 13F ASSURED GUARANTY COM G0585R106 8,600 8,600 363 0.0002
2018-05-14 2018-03-31 13F ASSURED GUARANTY COM G0585R106 0 -105,630 -100.00 0 -100.00
2018-03-12 2017-12-31 13F/A-1 ASSURED GUARANTY COM G0585R106 105,630 -79,000 -42.79 3,578 -48.67 0.0022
2018-02-09 2017-12-31 13F ASSURED GUARANTY COM G0585R106 105,630 -79,000 3,578
2017-11-14 2017-09-30 13F ASSURED GUARANTY COM G0585R106 184,630 -45,900 -19.91 6,970 -27.56 0.0045
2017-08-17 2017-06-30 13F/A-1 ASSURED GUARANTY COM G0585R106 230,530 230,530 9,622 0.0066
2017-08-14 2017-06-30 13F ASSURED GUARANTY COM G0585R106 230,530 9,622 0.0066
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.