GOGO INC

Ticker: GOGO CUSIP: 38046C109 Class: Common Stock

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

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

Q3 2015

Shares 48,350 Value ($000) $739 Avg Close $17.09 Range $12.50 - $22.17

Q2 2015

Shares 787,290 Value ($000) $16,872 Avg Close $21.35 Range $18.40 - $23.20

Q1 2015

Shares 568,413 Value ($000) $10,834 Avg Close $17.02 Range $13.26 - $22.00

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2015	48,350	$739	$17.09	$12.50 - $22.17
Q2 2015	787,290	$16,872	$21.35	$18.40 - $23.20
Q1 2015	568,413	$10,834	$17.02	$13.26 - $22.00