X0306 4 2016-12-16 0 0001459200 Alarm.com Holdings, Inc. ALRM 0001682412 Gollinger Allan Jon C/O ALARM.COM HOLDING, INC. 8281 GREENSBORO DRIVE SUITE 100 TYSON VA 22108 0 1 0 0 Principal Accounting Officer Common Stock 2016-12-16 4 S 0 3500 28.02 D 19135 D The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $27.97 - $28.08, 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 footnote (1) to this Form 4. /s/ Daniel Ramos, Attorney-in-Fact 2016-12-20