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  4. [Form 4] Alarm.com Holdings, Inc. Insider Trading Activity

ALRM chief executive increases stake with new 26K-share purchase

Filing Impact
(Very High)
Filing Sentiment
(Positive)
Form Type
4

Rhea-AI Filing Summary

Alarm.com Holdings, Inc. (ALRM) Chief Executive Officer and director entered into multiple open-market purchases of common stock over three consecutive days. On 11/18/2025, an affiliated LLC bought 3,531 shares at a weighted average price of $48.57. On 11/19/2025, the LLC purchased 12,469 shares at a weighted average price of $48.53, and on 11/20/2025 it acquired 9,900 shares at a weighted average price of $48.06, plus a separate purchase of 100 shares at $48.66. Following these transactions, the LLC held 1,315,343 shares indirectly, while the reporting person also held 268,859 shares directly and additional shares through family trusts. The reporting person agreed to voluntarily disgorge to the company all statutory “profits” under Section 16(b) that resulted from these transactions.

Positive

  • None.

Negative

  • None.
Insider Trundle Stephen
Role Chief Executive Officer
Bought 26,000 shs ($1.26M)
Type Security Shares Price Value
Purchase Common Stock 9,900 $48.06 $476K
Purchase Common Stock 100 $48.66 $5K
Purchase Common Stock 12,469 $48.53 $605K
Purchase Common Stock 3,531 $48.57 $172K
holding Common Stock -- -- --
holding Common Stock -- -- --
holding Common Stock -- -- --
Holdings After Transaction: Common Stock — 1,315,243 shares (Indirect, By LLC); Common Stock — 268,859 shares (Direct)
Footnotes (1)
  1. The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $48.2917 - $48.73, 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 purchased at each separate price within the range set forth in this footnote to this Form 4. These shares are owned by Backbone Partners, LLC ("Backbone"). The Reporting Person has the sole power to vote and dispose of the shares held by Backbone. The Reporting Person disclaims beneficial ownership of the shares owned by Backbone except to the extent, if any, of his pecuniary interest therein. The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $48.14 - $48.92, 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 purchased 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 purchased in multiple transactions at prices ranging from $47.615 - $48.545, 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 purchased at each separate price within the range set forth in this footnote to this Form 4. These shares are owned by the Stephen Trundle 2015 Gift Trust (the "Trust"). Certain members of the Reporting Person's immediate family are beneficiaries of the Trust. The Reporting Person disclaims beneficial ownership of the shares owned by the Trust except to the extent, if any, of his pecuniary interest therein. These shares are owned by the Footings Advancement Trust (the "Advancement Trust"). The Reporting Person has the sole power to vote and dispose of the shares held by the Advancement Trust and certain members of the Reporting Person's immediate family are beneficiaries. The Reporting Person disclaims beneficial ownership of the shares owned by the Advancement Trust except to the extent, if any, of his pecuniary interest therein.
Form 4 Insider Transactions: What Each Field Means →
SEC Form 4
FORM 4 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number: 3235-0287
Estimated average burden
hours per response: 0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
Trundle Stephen
(Last) (First) (Middle)
C/O ALARM.COM HOLDINGS, INC.
8281 GREENSBORO DRIVE SUITE 100
(Street)
TYSONS VA 22102
(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
Alarm.com Holdings, Inc. [ ALRM ] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
X Director 10% Owner
X Officer (give title below) Other (specify below)
Chief Executive Officer
3. Date of Earliest Transaction (Month/Day/Year)
11/18/2025
4. If Amendment, Date of Original Filed (Month/Day/Year)
 6. Individual or Joint/Group Filing (Check Applicable Line)
X Form filed by One Reporting Person
Form filed by More than One Reporting Person
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 11/18/2025 P 3,531 A $48.57(1) 1,292,874 I By LLC(2)
Common Stock 11/19/2025 P 12,469 A $48.53(3) 1,305,343 I By LLC(2)
Common Stock 11/20/2025 P 9,900 A $48.06(4) 1,315,243 I By LLC(2)
Common Stock 11/20/2025 P 100 A $48.66 1,315,343 I By LLC(2)
Common Stock 268,859 D
Common Stock 259,687 I By Gift Trust(5)
Common Stock 9,862 I By Footings Advancement Trust(6)
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year) 7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Explanation of Responses:
1. The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $48.2917 - $48.73, 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 purchased at each separate price within the range set forth in this footnote to this Form 4.
2. These shares are owned by Backbone Partners, LLC ("Backbone"). The Reporting Person has the sole power to vote and dispose of the shares held by Backbone. The Reporting Person disclaims beneficial ownership of the shares owned by Backbone except to the extent, if any, of his pecuniary interest therein.
3. The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $48.14 - $48.92, 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 purchased at each separate price within the range set forth in this footnote to this Form 4.
4. The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $47.615 - $48.545, 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 purchased at each separate price within the range set forth in this footnote to this Form 4.
5. These shares are owned by the Stephen Trundle 2015 Gift Trust (the "Trust"). Certain members of the Reporting Person's immediate family are beneficiaries of the Trust. The Reporting Person disclaims beneficial ownership of the shares owned by the Trust except to the extent, if any, of his pecuniary interest therein.
6. These shares are owned by the Footings Advancement Trust (the "Advancement Trust"). The Reporting Person has the sole power to vote and dispose of the shares held by the Advancement Trust and certain members of the Reporting Person's immediate family are beneficiaries. The Reporting Person disclaims beneficial ownership of the shares owned by the Advancement Trust except to the extent, if any, of his pecuniary interest therein.
Remarks:
The Reporting Person has agreed to voluntarily disgorge to the Issuer all statutory "profits" pursuant to Section 16(b) of the Securities Exchange Act of 1934, as amended, that resulted from the transactions reported herein.
/s/ Daniel Ramos, Attorney-in-Fact 11/20/2025
** Signature of Reporting Person Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

Source: View Original Filing on SEC EDGAR

FAQ

What insider transaction did ALRM's CEO report on this Form 4?

The Chief Executive Officer of Alarm.com Holdings, Inc. (ALRM) reported several open-market purchases of the company’s common stock through an affiliated LLC on 11/18/2025, 11/19/2025, and 11/20/2025.

How many Alarm.com (ALRM) shares were purchased in total in these transactions?

The affiliated LLC purchased 3,531 shares on 11/18/2025, 12,469 shares on 11/19/2025, and 9,900 plus 100 shares on 11/20/2025, for a total of 26,000 shares.

What prices did the ALRM CEO pay for the recently purchased shares?

The reported weighted average purchase prices were $48.57 on 11/18/2025, $48.53 on 11/19/2025, and $48.06 and $48.66 on 11/20/2025, with each date covering multiple trades within disclosed price ranges.

How many Alarm.com (ALRM) shares does the reporting person beneficially own after these trades?

After the reported transactions, the affiliated LLC held 1,315,343 shares indirectly. The reporting person also held 268,859 shares directly and additional shares indirectly through the Stephen Trundle 2015 Gift Trust and the Footings Advancement Trust.

Through which entities does the ALRM CEO hold indirect ownership of shares?

Indirect holdings include shares owned by Backbone Partners, LLC, the Stephen Trundle 2015 Gift Trust, and the Footings Advancement Trust, with the reporting person having voting and/or dispositive power over these shares subject to his pecuniary interest.

What did the ALRM CEO agree to do regarding Section 16(b) profits?

The reporting person agreed to voluntarily disgorge to Alarm.com Holdings, Inc. all statutory “profits” under Section 16(b) of the Securities Exchange Act of 1934 that resulted from the transactions reported in this filing.

Does this Form 4 for ALRM report any derivative securities transactions?

The Form 4 includes a table for derivative securities, but no derivative security acquisitions or dispositions are reported in the provided excerpt.