ALASKA AIR GROUP INC

Ticker: ALK CUSIP: 011659109 Class: COM

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

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

Q3 2017

Shares 4,000 Value ($000) $305 Avg Close $77.46 Range $67.57 - $90.57

Q2 2017

Shares 3,300 Value ($000) $296 Avg Close $82.77 Range $77.31 - $88.12

Q1 2016

Shares 41,652 Value ($000) $3,416 Avg Close $68.47 Range $56.94 - $77.12

Q4 2015

Shares 29,038 Value ($000) $2,338 Avg Close $73.15 Range $67.22 - $80.60

Q3 2015

Shares 54,287 Value ($000) $4,313 Avg Close $70.36 Range $54.34 - $76.34

Q2 2015

Shares 73,546 Value ($000) $4,739 Avg Close $59.18 Range $53.49 - $62.99

Q1 2015

Shares 73,957 Value ($000) $4,894 Avg Close $59.43 Range $52.76 - $65.28

Q4 2014

Shares 88,849 Value ($000) $5,310 Avg Close $48.12 Range $37.12 - $55.72

Q3 2014

Shares 104,962 Value ($000) $4,570 Avg Close $42.26 Range $38.06 - $45.61

Q2 2014

Shares 49,903 Value ($000) $4,743 Avg Close $43.26 Range $39.84 - $45.93

Q1 2014

Shares 54,826 Value ($000) $5,192 Avg Close $37.56 Range $32.81 - $42.62

Q4 2013

Shares 10,077 Value ($000) $739 Avg Close $32.10 Range $27.18 - $35.52

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2017	4,000	$305	$77.46	$67.57 - $90.57
Q2 2017	3,300	$296	$82.77	$77.31 - $88.12
Q1 2016	41,652	$3,416	$68.47	$56.94 - $77.12
Q4 2015	29,038	$2,338	$73.15	$67.22 - $80.60
Q3 2015	54,287	$4,313	$70.36	$54.34 - $76.34
Q2 2015	73,546	$4,739	$59.18	$53.49 - $62.99
Q1 2015	73,957	$4,894	$59.43	$52.76 - $65.28
Q4 2014	88,849	$5,310	$48.12	$37.12 - $55.72
Q3 2014	104,962	$4,570	$42.26	$38.06 - $45.61
Q2 2014	49,903	$4,743	$43.26	$39.84 - $45.93
Q1 2014	54,826	$5,192	$37.56	$32.81 - $42.62
Q4 2013	10,077	$739	$32.10	$27.18 - $35.52