GALLAGHER ARTHUR J & CO

Ticker: AJG CUSIP: 363576109 Class: COM

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

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

Q4 2017

Shares 4,400 Value ($000) $278 Avg Close $56.83 Range $54.05 - $60.12

Q3 2017

Shares 4,900 Value ($000) $302 Avg Close $52.01 Range $49.57 - $54.94

Q2 2017

Shares 5,600 Value ($000) $321 Avg Close $49.64 Range $47.74 - $52.14

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2017	4,400	$278	$56.83	$54.05 - $60.12
Q3 2017	4,900	$302	$52.01	$49.57 - $54.94
Q2 2017	5,600	$321	$49.64	$47.74 - $52.14