ALCOA CORP

Ticker: AA CUSIP: 013872106 Class: COM

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

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

Q4 2017

Shares 13,095 Value ($000) $705 Avg Close $43.68 Range $38.42 - $52.16

Q3 2017

Shares 13,095 Value ($000) $610 Avg Close $38.20 Range $31.44 - $45.80

Q2 2017

Shares 13,095 Value ($000) $428 Avg Close $30.99 Range $28.23 - $35.53

Q1 2017

Shares 13,095 Value ($000) $450 Avg Close $33.43 Range $26.91 - $38.00

Q4 2016

Shares 13,095 Value ($000) $368 Avg Close $25.90 Range $19.53 - $30.90

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2017	13,095	$705	$43.68	$38.42 - $52.16
Q3 2017	13,095	$610	$38.20	$31.44 - $45.80
Q2 2017	13,095	$428	$30.99	$28.23 - $35.53
Q1 2017	13,095	$450	$33.43	$26.91 - $38.00
Q4 2016	13,095	$368	$25.90	$19.53 - $30.90