As of November 6, 2026, Alarm.com Holdings, Inc. is a publicly traded company (Nasdaq: ALRM); its largest reported holder is Vanguard, with 8.04% on Schedule 13G of April 28, 2026, then Disciplined Growth Investors Inc. (7.3%). The largest insider holding is Stephen Trundle, the chief executive and a director, with 1,907,734 shares (3.9% of shares outstanding), per Form 4 of September 4, 2026 (Schedule 13G, April 28, 2026).
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Is Alarm.com Holdings, Inc. a real, registered company?
- Alarm.com Holdings, Inc. files with the SEC under CIK 1459200 (its SEC filings).
- Its shares are listed under the ticker ALRM on Nasdaq (SEC company record).
- Incorporated in Delaware; business address in Tysons, Virginia, as its SEC filings state.
- Court and bankruptcy records: see Before you sign or pay below.
Before you sign or pay
- Court and bankruptcy: No federal court case or bankruptcy filing found under Alarm.com Holdings, Inc. in our court records and SEC 8-K records (as of 2026-11-06).
- Ownership: 5%+ holders are reported on Schedule 13D or 13G; the latest names Disciplined Growth Investors Inc. (filed 2026-08-14).
Who are Alarm.com Holdings, Inc.'s owners and officers?
Alarm.com Holdings, Inc.: incorporated in Delaware; business address in Tysons, Virginia; industry Services-Prepackaged Software (Schedule 13G/A, 2026-08-14).
| Report | Holder | Share |
|---|---|---|
| Schedule 13G/A, 2026-08-14 | Disciplined Growth Investors Inc /Mn | 7.3% |
| Schedule 13G/A, 2026-08-12 | Bank Of Montreal | 6.98% |
| Schedule 13G/A, 2026-05-15 | Disciplined Growth Investors Inc /Mn | 6.6% |
| Schedule 13G, 2026-05-13 | Bank Of Montreal | 5.38% |
| Schedule 13G, 2026-04-29 | Vanguard Capital Management | 5.09% |
| Schedule 13G, 2026-04-28 | Vanguard Portfolio Management | 8.04% |
| Schedule 13G/A, 2026-03-26 | The Vanguard Group | 0% |
| Schedule 13G/A, 2026-02-17 | Disciplined Growth Investors Inc /Mn | 6.9% |
| Schedule 13G/A, 2025-11-14 | Disciplined Growth Investors Inc /Mn | 6.7% |
| Schedule 13G/A, 2025-08-14 | Disciplined Growth Investors Inc /Mn | 7% |
Questions about who owns Alarm.com Holdings, Inc.
Who owns Alarm.com Holdings, Inc.?
On this page, 4 holders' latest ownership filings report 5% or more of Alarm.com Holdings, Inc.: Vanguard Portfolio Management (8.04%, Schedule 13G, filed 2026-04-28), Disciplined Growth Investors Inc /Mn (7.3%, Schedule 13G/A, filed 2026-08-14), Bank Of Montreal (6.98%, Schedule 13G/A, filed 2026-08-12) and Vanguard Capital Management (5.09%, Schedule 13G, filed 2026-04-29).
Who are the largest shareholders of Alarm.com Holdings, Inc.?
By the share each holder's latest filing reports, the largest holders of Alarm.com Holdings, Inc. on this page are Vanguard Portfolio Management (8.04%), Disciplined Growth Investors Inc /Mn (7.3%) and Bank Of Montreal (6.98%).
When did Vanguard Portfolio Management buy into Alarm.com Holdings, Inc.?
The filings give report dates, not purchase dates. The earliest filing from Vanguard Portfolio Management on this page is the Schedule 13G, filed 2026-04-28, reporting 8.04%.
Is this an audit or a full list?
Neither. The ownership list on this page covers only Schedule 13D and 13G filings, which holders make once they own 5% or more of a class of shares (an amendment can report a stake that has since fallen below 5%); 10 such filings are shown here. It is not an audit and not a full cap table: holders who never reached 5% are not listed, and a stake can change after its latest filing.
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Which insiders own Alarm.com Holdings, Inc. shares?
Directors, officers and holders of 10% or more report their shares on Forms 3, 4 and 5. Each line is the latest such report, largest holding first.
- , the chief executive and a director: 1,907,734 shares (3.9% of shares outstanding), 322,842 held directly and 1,584,892 indirectly (Form 4, 2026-09-04).
- Jeffrey A. Bedell: 505,805 shares (1.0% of shares outstanding) (Form 4, 2025-12-18).
- , a director: 103,838 shares (0.21% of shares outstanding) (Form 4, 2026-06-08).
- Daniel Kerzner: 101,141 shares (0.21% of shares outstanding) (Form 4, 2026-05-28).
- , the chief financial officer: 78,222 shares (0.16% of shares outstanding) (Form 4, 2026-08-14).
Shares outstanding: 49,049,132 as of 2026-10-29, from the company's latest SEC cover page.
How much has Alarm.com Holdings, Inc. raised?
No fundraising or offering filing from Alarm.com Holdings, Inc. is on file with us.
Keep reading
More on Alarm.com Holdings, Inc. and the records around it.
Alarm.com Holdings, Inc. elsewhere on the record
- 5%+ stake filings Aug 2026
Companies that share a holder
- DISCIPLINED GROWTH INVESTORS INC /MN also filed stake reports on 10 other companies: Kornit Digital Ltd. (Aug 2026), Stitch Fix, Inc. (Aug 2026), ZIPRECRUITER, INC. (Aug 2026)
- Bank of Montreal also filed stake reports on 49 other companies: Akari Therapeutics Plc (Aug 2026), North American Construction Group Ltd. (Aug 2026), OPENLANE, Inc. (Aug 2026)
- Vanguard Portfolio Management also filed stake reports on 941 other companies: Newmark Group Inc (Nov 2026), A10 Networks Inc (Oct 2026), ADT Inc (Oct 2026)
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