X0508 4 2025-02-23 0001273813 ASSURED GUARANTY LTD AGO 0001326822 Bailenson Robert 30 WOODBOURNE AVENUE 5TH FLOOR HAMILTON D0 HM 08 BERMUDA false true false false Chief Operating Officer 0 Common Shares 2025-02-23 4 F false 5936 89.81 D 320916.0819 D Common Shares 2025-02-23 4 A false 17404 0 A 338320.0819 D Common Shares 2025-02-23 4 F false 8885 89.81 D 329435.0819 D Common Shares 2025-02-23 4 A false 18596 0 A 348031.0819 D Common Shares being withheld to pay tax liability. Represents the vesting of performance share units based on the achievement of core adjusted book value targets. Represents the determination of the number of common shares to be delivered based on the achievement of relative total shareholder value targets. These shares have vested and will be delivered on February 23, 2026, subject to continued compliance with the terms of the award agreement. /s/ Ling Chow, Attorney-in-fact 2025-02-24