ASSURED GUARANTY LTD

Ticker: AGO CUSIP: G0585R106 Class: EQTY

HighVista Strategies LLC's Holding History (CIK: 0001335325)

Note: Option positions (PUT/CALL) are excluded.

Q3 2017

Shares 7,000 Value ($000) $264 Avg Close $37.09 Range $32.23 - $39.54

Q2 2017

Shares 7,900 Value ($000) $330 Avg Close $34.02 Range $31.61 - $36.74

Q1 2017

Shares 27,800 Value ($000) $1,032 Avg Close $34.08 Range $31.02 - $36.86

Q4 2016

Shares 25,200 Value ($000) $952 Avg Close $28.80 Range $23.45 - $33.50

Q4 2015

Shares 55,800 Value ($000) $1,475 Avg Close $22.54 Range $20.54 - $24.84

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2017	7,000	$264	$37.09	$32.23 - $39.54
Q2 2017	7,900	$330	$34.02	$31.61 - $36.74
Q1 2017	27,800	$1,032	$34.08	$31.02 - $36.86
Q4 2016	25,200	$952	$28.80	$23.45 - $33.50
Q4 2015	55,800	$1,475	$22.54	$20.54 - $24.84