ALARM COM HLDGS INC

Ticker: ALRM CUSIP: 011642105 Class: EQTY

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

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

Q1 2019

Shares 211,148 Value ($000) $13,704 Avg Close $60.66 Range $49.72 - $65.85

Q4 2018

Shares 221,813 Value ($000) $11,505 Avg Close $48.33 Range $40.92 - $60.20

Q3 2018

Shares 373,760 Value ($000) $21,454 Avg Close $50.28 Range $39.94 - $59.05

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2019	211,148	$13,704	$60.66	$49.72 - $65.85
Q4 2018	221,813	$11,505	$48.33	$40.92 - $60.20
Q3 2018	373,760	$21,454	$50.28	$39.94 - $59.05