X0306 4 2019-04-01 0 0001459200 Alarm.com Holdings, Inc. ALRM 0001642717 Kerzner Daniel C/O ALARM.COM HOLDINGS, INC. 8281 GREENSBORO DRIVE SUITE 100 TYSONS VA 22102 0 1 0 0 Chief Product Officer Common Stock 2019-04-01 4 A 0 15000 0.00 A 39133 D Common Stock 2019-04-02 4 S 0 758 64.63 D 38375 D Employee Stock Option (Right to Buy) 65.03 2019-04-01 4 A 0 15000 0.00 A 2029-03-31 Common Stock 15000 15000 D 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. Represents the number of shares required to be sold by the Reporting Person to cover the tax withholding obligation in connection with the settlement of vested RSUs. This sale is mandated by the Issuer's election under its equity incentive plans to require the Reporting Person to fund this tax withholding obligation by completing a "sell to cover" transaction with a brokerage firm designated by the Issuer. This sale does not represent a discretionary trade by the Reporting Person. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $64.20 - $65.00, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote to this Form 4. 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