X0306 4 2021-11-09 0 0001459200 Alarm.com Holdings, Inc. ALRM 0001642533 Ramos Daniel C/O ALARM.COM HOLDINGS, INC. 8281 GREENSBORO DRIVE SUITE 100 TYSONS VA 22102 0 1 0 0 Sr. VP-Corporate Development Common Stock 2021-11-09 4 M 0 834 32.17 A 42235 D Common Stock 2021-11-09 4 M 0 833 37.74 A 43068 D Common Stock 2021-11-09 4 M 0 1042 37.94 A 44110 D Common Stock 2021-11-09 4 M 0 1200 65.03 A 45310 D Common Stock 2021-11-09 4 S 0 5586 88.04 D 39724 D Common Stock 2021-11-11 4 M 0 2376 65.03 A 42100 D Common Stock 2021-11-11 4 S 0 5678 85.08 D 36422 D Common Stock 2021-11-12 4 M 0 1590 65.03 A 38012 D Common Stock 2021-11-12 4 S 0 3568 85.44 D 34444 D Stock Option (Right to Buy) 32.17 2021-11-09 4 M 0 834 0.00 D 2027-05-14 Common Stock 834 1000 D Stock Option (Right to Buy) 37.74 2021-11-09 4 M 0 833 0.00 D 2028-03-31 Common Stock 833 2834 D Stock Option (Right to Buy) 37.94 2021-11-09 4 M 0 1042 0.00 D 2030-03-31 Common Stock 1042 8542 D Stock Option (Right to Buy) 65.03 2021-11-09 4 M 0 1200 0.00 D 2029-03-31 Common Stock 1200 8800 D Stock Option (Right to Buy) 65.03 2021-11-11 4 M 0 2376 0.00 D 2029-03-31 Common Stock 2376 6424 D Stock Option (Right to Buy) 65.03 2021-11-12 4 M 0 1590 0.00 D 2029-03-31 Common Stock 1590 4834 D The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $88.00 - $88.25, 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. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $85.03 - $85.37, 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. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $85.07 - $85.845, 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. The shares underlying the option exercised in this transaction were fully vested and exercisable. The remainder of the shares underlying the option shall continue to vest and become exercisable ratably on a monthly basis on the first day of each month through May 1, 2022, subject to the Reporting Person's continued service with the Issuer through each such date. The shares underlying the option exercised in this transaction were fully vested and exercisable. The remainder of the shares underlying the option shall continue to vest and become exercisable ratably on a monthly basis on the first day of each month through April 1, 2023, subject to the Reporting Person's continued service with the Issuer through each such date. The shares underlying the option exercised in this transaction were fully vested and exercisable. The remainder of the shares underlying the option shall continue to vest and become exercisable ratably on a monthly basis on the first day of each month through April 1, 2025, subject to the Reporting Person's continued service with the Issuer through each such date. The shares underlying the option exercised in this transaction were fully vested and exercisable. The remainder of the shares underlying the option shall continue to vest and become exercisable ratably on a monthly basis on the first day of each month through April 1, 2024, subject to the Reporting Person's continued service with the Issuer through each such date. /s/ Daniel Ramos 2021-11-12