Alarm.com (NASDAQ: ALRM) affiliate lines up 50,000-share sale
Alarm.com (ALRM) affiliate Stephen Trundle plans to sell 50,000 shares, valued at $2.88M, on or after 08/24/2026. The sale follows a stock option exercise and is handled by Morgan Stanley. Trundle previously sold 6,073 shares in May 2026 for $265,847.40. ALRM has 49,090,228 shares outstanding.
How this was made
The 30-second read
Why it matters
The disclosed sale adds 0.1% of ALRM's outstanding shares, a modest dilution that could slightly depress the stock if executed quickly.
Market read
First public notice of an insider share sale; relevant for short‑term traders monitoring supply changes.
What to watch
Potential concurrent corporate actions or market conditions could amplify or mute the effect of the share release.
Background
Rule 144 filings disclose when insiders can sell restricted shares, providing transparency on future supply.
Ticker impact
Stephen Trundle filed a Rule 144 sale to off‑load 50,000 ALRM shares worth $2.88 M on or after 08/24/2026.
minor downward pressure if shares hit the market
Insider sale size is modest relative to float; market may view it as routine but added supply could cause slight dip.
Market effects
Minimal; the filing does not signal broader sector trends.
None; impact confined to ALRM shareholders.
Low; limited to a single US‑listed security.
Counterpoint
The sale may be a strategic repositioning rather than a lack of confidence, so price impact could be limited.
Key entities
- InsiderStephen Trundle
Affiliated person with ALRM, filing the Rule 144 sale.
- BrokerMorgan Stanley Smith Barney LLC
Designated broker for the Rule 144 transaction.



