Alarm.com Holdings, Inc.

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A

Proxy Statement Pursuant to Section 14(a) of

the Securities Exchange Act of 1934 (Amendment No. )

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Filed by a Party other than the Registrant ☐

Check the appropriate box:

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Preliminary Proxy Statement

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Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))

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Definitive Proxy Statement

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Definitive Additional Materials

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Soliciting Material under §240.14a-12

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Alarm.com Holdings, Inc.​

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(Name of Registrant as Specified In Its Charter)

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(Name of Person(s) Filing Proxy Statement, if other than the Registrant)

Payment of Filing Fee (Check all boxes that apply):

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No fee required.

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Fee paid previously with preliminary materials.

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Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(1) and 0-11

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To our stockholders:

We are pleased to invite you to attend the 2026 Annual Meeting of Stockholders (the “Annual Meeting”) of Alarm.com Holdings, Inc. to be held on Wednesday, June 3, 2026 at 9:00 a.m. Eastern Time at our headquarters located at 8281 Greensboro Drive, Suite 100, Tysons, Virginia 22102.

Details regarding admission to the Annual Meeting and the business to be conducted at the Annual Meeting are described in the accompanying Notice of Annual Meeting of Stockholders and proxy statement.

We have elected to provide access to our proxy materials over the Internet under the U.S. Securities and Exchange Commission’s “notice and access” rules. As a result, we are mailing to our stockholders a notice instead of paper copies of this proxy statement and our 2025 Annual Report. The notice contains instructions on how to access those documents over the Internet. The notice also contains instructions on how stockholders can receive a paper copy of our proxy materials, including this proxy statement, our 2025 Annual Report and a form of proxy card or voting instruction form. We believe that providing our proxy materials over the Internet increases the ability of our stockholders to connect with the information they need, while reducing the environmental impact and cost of our Annual Meeting.

Your vote is important. Whether or not you plan to attend the Annual Meeting, we hope you will vote as soon as possible. You may vote by telephone or through the Internet by following the instructions on the notice you received, or, if you receive a paper proxy card by mail, by completing and returning the proxy card or voting instruction form mailed to you. Please carefully review the instructions on each of your voting options described in this proxy statement, as well as in the notice you received in the mail.

Thank you for your ongoing support of and continued interest in Alarm.com Holdings, Inc.

Sincerely,

Stephen Trundle

Chief Executive Officer and Director

ALARM.COM HOLDINGS, INC.​

8281 Greensboro Drive, Suite 100

Tysons, Virginia 22102

NOTICE OF ANNUAL MEETING OF STOCKHOLDERS

To Be Held On June 3, 2026

To the Stockholders of Alarm.com Holdings, Inc.:

NOTICE IS HEREBY GIVEN that the 2026 Annual Meeting of Stockholders (the “Annual Meeting”) of Alarm.com Holdings, Inc., a Delaware corporation (the “Company”), will be held on Wednesday, June 3, 2026 at 9:00 a.m. Eastern Time at the Company’s principal executive offices, 8281 Greensboro Drive, Suite 100, Tysons, Virginia 22102, for the following purposes:

To elect the eight (8) nominees for director named in the accompanying proxy statement (the “Proxy Statement”) to hold office until the 2027 Annual Meeting of Stockholders and until their successors are duly elected and qualified.

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To ratify the selection by the Audit Committee of the Board of Directors of PricewaterhouseCoopers LLP as the independent registered public accounting firm of the Company for its fiscal year ending December 31, 2026.

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To approve, on an advisory basis, the compensation of the Company’s named executive officers as disclosed in the Proxy Statement.

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To conduct any other business properly brought before the Annual Meeting.

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These items of business are more fully described in the Proxy Statement accompanying this Notice.

The record date for the Annual Meeting was April 7, 2026. Only stockholders of record at the close of business on that date may vote at the Annual Meeting or any adjournment or postponement thereof. A list of stockholders of record will be available for inspection by stockholders of record during normal business hours for ten days prior to the Annual Meeting for any legally valid purpose at our corporate headquarters at 8281 Greensboro Drive, Suite 100, Tysons, Virginia 22102.

By Order of the Board of Directors,

Daniel Ramos

Corporate Secretary

Tysons, Virginia