Related Party Transactions

12 Months Ended

Dec. 31, 2016

Related Party Transactions [Abstract]

Related Party Transactions

Related Party Transactions

Wellington Management Company, LLP (Wellington) and BlackRock Financial Management, Inc. (BlackRock), each own more than 5% of the Company's common shares, and each are investment managers for a portion of the Company's investment portfolio. The net expenses from transactions with Wellington and BlackRock were approximately $4.2 million in 2016. The net expenses from transactions with Wellington were $1.9 million in 2015 and $1.9 million in 2014. As of December 31, 2016 and 2015 there were no other significant amounts payable to or amounts receivable from related parties, other than compensation in the ordinary course of business.

On January 6, 2017, as part of the Company's share repurchase program, the Company repurchased 297,131 common shares from its Chief Executive Officer and 23,062 common shares from its General Counsel. The Company repurchased the shares at the closing price of an AGL common share on the New York Stock Exchange on January 6, 2017. Separately, on that same date, these officers received 297,131 and 23,062 other common shares, respectively, in settlement of share units held by them in the employer stock fund of the Assured Guaranty Ltd. Supplemental Employee Retirement Plan (the AGL SERP). The units needed to be settled in January 2017 pursuant to the terms of an amendment adopted in 2011 to the AGL SERP, which amendment was adopted to comply with requirements of Section 409A of the Internal Revenue Code (the Code) and Section 457A of the Code.