CUSIP No. 011642105 13G Exhibit 99.1

AGREEMENT

Pursuant to Rule 13d-1(k)(1) under the Securities Exchange Act of 1934, as amended, the undersigned hereby agree that only one statement containing the information required by Schedule 13G need be filed with respect to the ownership by each of the undersigned of Common Stock of Alarm.com Holdings, Inc.

Dated:	February 14, 2017
By:	/s/ Stephen Trundle
	Stephen Trundle
Stephen Trundle 2015 2 Yr GRAT
BY:	Stephen Trundle
ITS:	Sole Trustee
By:	/s/ Stephen Trundle
STEPHEN TRUNDLE 2015 4 YR GRAT
BY:	Stephen Trundle
ITS:	Sole Trustee
By:	/s/ Stephen Trundle
BACKBONE PARTNERS, LLC
BY:	Stephen Trundle
ITS:	Sole Member
By:	/s/ Stephen Trundle