STOCK TITAN

Alarm.com (ALRM) CEO tax sell-to-cover of 2,944 shares disclosed

Filing Impact
(High)
Filing Sentiment
(Negative)
Form Type
4

Rhea-AI Filing Summary

Alarm.com Holdings, Inc. Chief Executive Officer Stephen Trundle reported a small sale of 2,944 shares of common stock on May 18, 2026 at a weighted average price of $43.56 per share. The shares were sold solely to cover tax withholding obligations from vested restricted stock units under the company’s equity plans and are described as a mandatory, non-discretionary "sell to cover" transaction through a designated broker.

Following this sale, Trundle holds 330,915 shares directly. Additional indirect holdings are shown as 1,315,343 shares held by Backbone Partners, LLC, 259,687 shares held by the Stephen Trundle 2015 Gift Trust, and 9,862 shares held by the Footings Advancement Trust, with various beneficial ownership disclaimers.

Positive

  • None.

Negative

  • None.
Insider Trundle Stephen
Role Chief Executive Officer
Sold 2,944 shs ($128K)
Type Security Shares Price Value
Sale Common Stock 2,944 $43.56 $128K
holding Common Stock -- -- --
holding Common Stock -- -- --
holding Common Stock -- -- --
Holdings After Transaction: Common Stock — 330,915 shares (Direct, null); Common Stock — 1,315,343 shares (Indirect, By LLC)
Footnotes (1)
  1. 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 restricted stock units. 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 $42.92 - $43.80, 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. 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. 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.
Shares sold 2,944 shares Mandatory sale on May 18, 2026 to cover RSU tax withholding
Weighted average sale price $43.56 per share Open-market sale of common stock
Sale price range $42.92–$43.80 per share Range of individual trades within the reported transaction
Direct holdings after transaction 330,915 shares Common stock held directly by Stephen Trundle after sale
Backbone Partners, LLC holdings 1,315,343 shares Common stock held indirectly via Backbone Partners, LLC
2015 Gift Trust holdings 259,687 shares Common stock held indirectly via Stephen Trundle 2015 Gift Trust
Footings Advancement Trust holdings 9,862 shares Common stock held indirectly via Footings Advancement Trust
sell to cover financial
"to require the Reporting Person to fund this tax withholding obligation by completing a "sell to cover" transaction"
Sell to cover is when a person who receives company stock through options or awards sells just enough shares immediately to pay required taxes, exercise costs, or fees, keeping the rest. Think of it like cashing part of a bonus to cover the tax bill so you can keep the remainder. For investors, it can create predictable small selling pressure and slightly change the number of shares actually held by insiders without increasing long‑term dilution.
restricted stock units financial
"tax withholding obligation in connection with the settlement of vested restricted stock units"
Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.
weighted average price financial
"The price reported in Column 4 is a weighted average price."
Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.
pecuniary interest financial
"disclaims beneficial ownership of the shares owned by Backbone except to the extent, if any, of his pecuniary interest therein."
SEC Form 4
FORM 4UNITED 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).
X
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 VIRGINIA 22102

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
Alarm.com Holdings, Inc. [ ALRM ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
XDirector10% Owner
XOfficer (give title below)Other (specify below)
Chief Executive Officer
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
05/18/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

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)
CodeVAmount(A) or (D)Price
Common Stock05/18/2026S(1)2,944D$43.56(2)330,915D
Common Stock1,315,343IBy LLC(3)
Common Stock259,687IBy Gift Trust(4)
Common Stock9,862IBy Footings Advancement Trust(5)
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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Explanation of Responses:
1. 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 restricted stock units. 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.
2. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $42.92 - $43.80, 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.
3. 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.
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.
5. 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.
/s/ Daniel Ramos, Attorney-in-Fact05/20/2026
** Signature of Reporting PersonDate
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.
* Form 4: SEC 1474 (03-26)

FAQ

What did Alarm.com (ALRM) CEO Stephen Trundle report in this Form 4?

Stephen Trundle reported a sale of 2,944 Alarm.com common shares. The shares were sold to satisfy tax withholding obligations from vested restricted stock units and were executed as a mandatory, non-discretionary sell-to-cover transaction under the company’s equity incentive plans.

How many Alarm.com (ALRM) shares did the CEO sell and at what price?

He sold 2,944 common shares at a weighted average price of $43.56 per share. Footnotes state the individual trades occurred between $42.92 and $43.80, and detailed trade breakdowns are available on request from the company or the SEC staff.

Was the Alarm.com (ALRM) CEO’s share sale discretionary?

No, the filing explains the sale was mandated to cover tax withholding on vested restricted stock units. The company’s equity plans require a sell-to-cover transaction through a designated brokerage firm, so this does not represent a discretionary trade decision by the CEO.

How many Alarm.com (ALRM) shares does the CEO hold after this transaction?

After the transaction, Stephen Trundle holds 330,915 shares directly. The filing also lists indirect holdings through Backbone Partners, LLC, the 2015 Gift Trust, and the Footings Advancement Trust, with the CEO disclaiming beneficial ownership except to any pecuniary interest.

Why does the Alarm.com (ALRM) Form 4 mention a weighted average price?

The sale was executed in multiple trades, so the filing reports a weighted average price of $43.56. Footnotes clarify that individual trades occurred between $42.92 and $43.80, and the CEO offers to provide exact trade details to interested parties on request.