ALASKA AIR GROUP INC

Ticker: ALK CUSIP: 011659109 Class: COM

Boston Common Asset Management, LLC's Holding History (CIK: 0001409427)

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

Q4 2019

Shares 26,335 Value ($000) $1,784 Avg Close $67.73 Range $60.50 - $71.46

Q3 2019

Shares 26,805 Value ($000) $1,740 Avg Close $62.15 Range $56.52 - $65.82

Q2 2019

Shares 27,340 Value ($000) $1,747 Avg Close $59.66 Range $54.88 - $62.96

Q1 2019

Shares 28,340 Value ($000) $1,590 Avg Close $59.56 Range $52.22 - $65.81

Q4 2018

Shares 17,070 Value ($000) $1,039 Avg Close $62.77 Range $55.87 - $72.81

Q3 2018

Shares 18,296 Value ($000) $1,260 Avg Close $62.60 Range $55.86 - $68.52

Q2 2018

Shares 16,856 Value ($000) $1,018 Avg Close $59.49 Range $55.20 - $67.33

Q1 2018

Shares 13,081 Value ($000) $810 Avg Close $63.43 Range $56.51 - $71.97

Q4 2017

Shares 13,503 Value ($000) $993 Avg Close $67.65 Range $58.01 - $78.50

Q3 2017

Shares 9,480 Value ($000) $723 Avg Close $77.46 Range $67.57 - $90.57

Q2 2017

Shares 9,480 Value ($000) $851 Avg Close $82.77 Range $77.31 - $88.12

Q1 2017

Shares 4,215 Value ($000) $389 Avg Close $89.03 Range $81.01 - $95.59

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2019	26,335	$1,784	$67.73	$60.50 - $71.46
Q3 2019	26,805	$1,740	$62.15	$56.52 - $65.82
Q2 2019	27,340	$1,747	$59.66	$54.88 - $62.96
Q1 2019	28,340	$1,590	$59.56	$52.22 - $65.81
Q4 2018	17,070	$1,039	$62.77	$55.87 - $72.81
Q3 2018	18,296	$1,260	$62.60	$55.86 - $68.52
Q2 2018	16,856	$1,018	$59.49	$55.20 - $67.33
Q1 2018	13,081	$810	$63.43	$56.51 - $71.97
Q4 2017	13,503	$993	$67.65	$58.01 - $78.50
Q3 2017	9,480	$723	$77.46	$67.57 - $90.57
Q2 2017	9,480	$851	$82.77	$77.31 - $88.12
Q1 2017	4,215	$389	$89.03	$81.01 - $95.59