Alarm.com Holdings, Inc. (ALRM)
Nasdaq: ALRM · Services-Prepackaged Software · Tysons, VA · filing with the SEC since 2009
Grade5.7
◀ Past 6.5● Present 6.3▶ Future 4.8
Who owns Alarm.com Holdings, Inc.
As filed with the SECHolders of 5% or more
5
Blackrock, Inc. holds 16.8% of Common Stock, as its SCHEDULE 13G/A filed Apr 29, 2025 says.
Directors and officers
12
report now, of 27 people on the record since 2015. Their holdings as a group are not read here.
Institutions as a whole
n/a
The record does not read the share held by managers that file Form 13F, so none is printed and no split of the rest is estimated. What it holds is the 5 named at left.
Holders of 5% or moreshare of the class, as filed
Blackrock, Inc.
SCHEDULE 13G/A · filed Apr 29, 2025 · Common Stock · 18.9% in Feb 5, 2025
Vanguard Portfolio Management
SCHEDULE 13G · filed Apr 28, 2026 · Common Stock
Disciplined Growth Investors Inc /mn
SCHEDULE 13G/A · filed Aug 14, 2026 · Common Stock · 6.6% in May 15, 2026
Bank of Montreal
SCHEDULE 13G/A · filed Aug 12, 2026 · Common Stock · 5.38% in May 13, 2026
Vanguard Capital Management
SCHEDULE 13G · filed Apr 29, 2026 · Common Stock
Brown Capital Management, LLC
SCHEDULE 13G/A · filed May 15, 2025 · Common Stock, Par Value $0.01 Per Share · reported falling below 5%, from 4.84% in Feb 14, 2025
The Vanguard Group
SCHEDULE 13G/A · filed Mar 26, 2026 · Common Stock · reported falling below 5%
What ALRM reports owning in othersstakes of 5% or more, and other ties
Other ties the annual report names
Resideo Grid Services ("RGS")
A company bought · acquisition · Nov 2025 · owns, named in the 10-K filed Feb 19, 2026
Bridge to Renewables, Inc.
A company bought · acquisition · Jul 2025 · owns, named in the 10-K filed Feb 19, 2026
CHeKT, Inc
A company bought · acquisition · Jan 2025 · owns, named in the 10-K filed Feb 19, 2026
30 subsidiaries in 5 countries, from the list filed with the 10-K filed Feb 19, 2026.
Insider tradesForm 4
19sales
4purchases
10sales on a scheduled plan
8people selling
$8.5Msold, in dollars
$1.3Mbought, in dollars
Open-market trades on Form 4 from Nov 12, 2025 to Nov 12, 2026. A scheduled plan is a selling program set in advance under SEC rule 10b5-1. The trades are listed as filed and do not feed the grade.
By calendar yearSoldBought
2026 runs to Nov 12, 2026. Dollars as filed, summed by the transaction date.
People who traded in the window8 of 40 on the roster
| Person | Role as filed | Sales | Sold | On a plan | Buys | Bought |
|---|---|---|---|---|---|---|
| Trundle Stephen | Chief Executive Officer | 3 | $3.3M | 3 | 4 | $1.3M |
| Kerzner Daniel | President, Platforms Business | 4 | $1.8M | 2 | 0 | $0 |
| Nevin Darius G | director | 1 | $1.7M | 1 | 0 | $0 |
| Bedell Jeffrey A | President, Ventures Business and Corporate Strategy | 2 | $1.3M | 0 | 0 | $0 |
| Ramos Daniel | Chief Legal and Compliance Officer; Senior Vice President, Corporate Operations | 4 | $600,000 | 2 | 0 | $0 |
| Bradley Kevin Christopher | Chief Financial Officer | 4 | $500,000 | 2 | 0 | $0 |
| Clarke Donald E | director | 1 | $300,000 | 0 | 0 | $0 |
| Evans Stephen C. | director | 1 | $100,000 | 0 | 0 | $0 |