Alarm.com Holdings, Inc. Insider Trading Activity
Every SEC Form 4 insider transaction reported for Alarm.com Holdings, Inc. (ALRM), sourced directly from SEC EDGAR and updated as new filings are accepted.
By Trabud · Insider-trading data from SEC EDGAR
Latest filing:
Compiled automatically from SEC EDGAR Form 4 filings and refreshed daily. Figures count purchases (code P) and sales (code S) only — not grants, option exercises, or gifts. How this page is built. Not investment advice.
Quick Answer
Are ALRM insiders buying or selling?
In the last 12 months, Alarm.com Holdings, Inc. insiders reported 1 open-market purchase ($1.3M) and 17 sales ($9.2M) — net selling of $8.0M. Since March 2018, Trabud has recorded 214 Form 4 filings for ALRM: 2 buys ($1.6M) and 212 sells ($441.3M).
Source: SEC EDGAR Form 4
What stands out
- The largest open-market purchase in the last 12 months was $1.3M by Stephen Trundle (Chief Executive Officer) on Nov 20, 2025. SEC ↗
- The most recent open-market purchase was reported on Nov 20, 2025 (10 months ago).
Key Statistics (March 2018 – Aug 25, 2026)
Total Form 4 filings
214
SEC EDGAR
Insider filers
19
Insider buys (2)
$1.6M
Insider sells (212)
$441.3M
Insider sentiment
Net sellingNet insider flow of $439.7M in net selling since March 2018, and $8.0M in net selling over the last 12 months.
Recent ALRM insider transactions
| Date | Insider | Role | Type | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| Aug 25, 2026 | Stephen Trundle | Chief Executive Officer | Sale | 50.0K | $57.67 | $2.9M | SEC ↗ |
| Aug 14, 2026 | Kevin Christopher Bradley | Chief Financial Officer | Sale | 5.4K | $55.07 | $297.4K | SEC ↗ |
| Jul 2, 2026 | Kevin Christopher Bradley | Chief Financial Officer | Sale | 724 | $48.46 | $35.1K | SEC ↗ |
| Jun 12, 2026 | Daniel Ramos | Chief Legal and Compliance Officer; Senior Vice President, Corporate Operations | Sale | 10.0K | $46.28 | $462.8K | SEC ↗ |
| Jun 12, 2026 | Kevin Christopher Bradley | Chief Financial Officer | Sale | 2.2K | $46.15 | $101.5K | SEC ↗ |
| May 28, 2026 | Stephen Trundle | Chief Executive Officer | Sale | 6.1K | $43.78 | $265.9K | SEC ↗ |
| May 28, 2026 | Daniel Ramos | Chief Legal and Compliance Officer; Senior Vice President, Corporate Operations | Sale | 2.5K | $43.78 | $110.9K | SEC ↗ |
| May 28, 2026 | Daniel Kerzner | President, Platforms Business | Sale | 3.9K | $43.78 | $172.7K | SEC ↗ |
| May 20, 2026 | Daniel Kerzner | President, Platforms Business | Sale | 1.9K | $43.56 | $83.4K | SEC ↗ |
| May 20, 2026 | Daniel Ramos | Chief Legal and Compliance Officer; Senior Vice President, Corporate Operations | Sale | 1.6K | $43.56 | $68.0K | SEC ↗ |
| May 20, 2026 | Stephen Trundle | Chief Executive Officer | Sale | 2.9K | $43.56 | $128.2K | SEC ↗ |
| Mar 19, 2026 | Kevin Christopher Bradley | Chief Financial Officer | Sale | 1.5K | $45.97 | $69.4K | SEC ↗ |
| Mar 19, 2026 | Darius G Nevin | Director | Sale | 36.0K | $46.17 | $1.7M | SEC ↗ |
| Dec 18, 2025 | Jeffrey A Bedell | President, Ventures Business and Corporate Strategy | Sale | 22.7K | $51.82 | $1.2M | SEC ↗ |
| Dec 16, 2025 | Jeffrey A Bedell | President, Ventures Business and Corporate Strategy | Sale | 2.3K | $52.51 | $119.4K | SEC ↗ |
| Dec 16, 2025 | Stephen C. Evans | Director | Sale | 1.2K | $52.27 | $60.3K | SEC ↗ |
| Nov 20, 2025 | Stephen Trundle | Chief Executive Officer | Purchase | 26.0K | $48.36 | $1.3M | SEC ↗ |
| Nov 14, 2025 | Daniel Kerzner | President, Platforms Business | Sale | 30.0K | $50.30 | $1.5M | SEC ↗ |
| Jul 2, 2025 | Kevin Christopher Bradley | Chief Financial Officer | Sale | 754 | $56.75 | $42.8K | SEC ↗ |
| Jun 12, 2025 | Stephen C. Evans | Director | Sale | 1.0K | $59.64 | $59.6K | SEC ↗ |
| May 27, 2025 | Daniel Ramos | Chief Legal and Compliance Officer; Senior Vice President, Corporate Operations | Sale | 8.8K | $57.47 | $503.6K | SEC ↗ |
| May 27, 2025 | Jeffrey A Bedell | President, Ventures Business and Corporate Strategy | Sale | 2.2K | $56.66 | $124.9K | SEC ↗ |
| May 27, 2025 | Daniel Kerzner | President, Platforms Business | Sale | 2.2K | $56.66 | $125.4K | SEC ↗ |
| May 27, 2025 | Stephen Trundle | Chief Executive Officer | Sale | 3.6K | $56.66 | $206.5K | SEC ↗ |
| May 17, 2025 | Daniel Ramos | Chief Legal and Compliance Officer; Senior Vice President, Corporate Operations | Sale | 8.5K | $59.95 | $511.8K | SEC ↗ |
Showing the 25 most recent of 214 Form 4 filings for Alarm.com Holdings, Inc..
Most active ALRM insiders
- Steve Valenzuela50 filings
- Stephen Trundle46 filings
- Daniel Ramos32 filings
- Daniel Kerzner28 filings
- Jeffrey A Bedell17 filings
Ask anything about ALRM insider activity
Use Trabud's AI agent to query Alarm.com Holdings, Inc.'s Form 4 history in plain English — "Show me ALRM CEO purchases this year" or compare it against any other ticker.
Open the AI agentALRM insider trading FAQ
Are Alarm.com Holdings, Inc. insiders buying or selling?
In the last 12 months, Alarm.com Holdings, Inc. insiders reported 1 open-market purchase ($1.3M) and 17 sales ($9.2M) — net selling of $8.0M. Since March 2018, Trabud has recorded 214 Form 4 filings for ALRM: 2 buys ($1.6M) and 212 sells ($441.3M). Over the full record that is net selling of $439.7M.
How many insiders trade ALRM stock?
19 distinct insider filers — officers, directors, 10%+ owners, and investment groups filing jointly — have reported Form 4 transactions for Alarm.com Holdings, Inc.. The most recent filing was accepted on Aug 25, 2026.
Where does Trabud get ALRM insider trading data?
All ALRM insider trading data comes directly from official SEC EDGAR Form 4 filings, which corporate insiders must submit within two business days of a transaction under Section 16(a) of the Securities Exchange Act of 1934.