X0306 4 2019-04-01 0 0001459200 Alarm.com Holdings, Inc. ALRM 0001304655 Valenzuela Steve C/O ALARM.COM HOLDINGS, INC. 8281 GREENSBORO DRIVE, SUITE 100 TYSONS VA 22102 0 1 0 0 Chief Financial Officer Common Stock 2019-04-01 4 M 0 1083 27.90 A 29132 D Common Stock 2019-04-01 4 S 0 1083 65.42 D 28049 D Common Stock 2019-04-01 4 A 0 12500 0.00 A 40549 D Employee Stock Option (Right to Buy) 27.90 2019-04-01 4 M 0 1083 0.00 D 2026-11-14 Common Stock 1083 33584 D Employee Stock Option (Right to Buy) 65.03 2019-04-01 4 A 0 12500 0.00 A 2029-03-31 Common Stock 12500 12500 D These exercises and sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person. This security represents restricted stock units granted under the Issuer's 2015 Equity Incentive Plan, as amended. Each restricted stock unit represents a contingent right to receive one share of common stock of the Issuer. The restricted stock unit (the "RSU") shall vest in five (5) equal annual installments beginning on April 1, 2020, such that the RSU shall be fully vested on April 1, 2024, subject to the Reporting Person's continued service with the Issuer through each such date. 20% of the shares underlying the option shall vest and become exercisable on November 15, 2017; the remainder of the shares underlying the option shall vest and become exercisable ratably on a monthly basis over the following four (4) years on the first day of each month beginning on December 1, 2017, subject to the Reporting Person's continuous service with the Issuer as of each such date. This option shall vest and become exercisable in sixty (60) equal monthly installments on the 1st day of each calendar month beginning on May 1, 2019, subject to the Reporting Person's continued service with the Issuer through each such date. /s/ Daniel Ramos, Attorney-in-Fact 2019-04-03