ALASKA AIR GROUP INC

Ticker: ALK CUSIP: 011659109 Class: COM

WESTFIELD CAPITAL MANAGEMENT CO LP's Holding History (CIK: 0001177719)

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

Q4 2015

Shares 206,495 Value ($000) $16,625 Avg Close $73.15 Range $67.22 - $80.60

Q1 2015

Shares 54,870 Value ($000) $3,631 Avg Close $59.43 Range $52.76 - $65.28

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2015	206,495	$16,625	$73.15	$67.22 - $80.60
Q1 2015	54,870	$3,631	$59.43	$52.76 - $65.28