InsiderSignal.AI

InsiderSignal.ai

ALRM - Alarm.Com Holdings, Inc.

Insider Purchase by Trundle Stephen (CEO)

6 Months
After Trade
Before Trade

Loading data...

Trade Summary

3 months ago, Trundle Stephen, serving as CEO at Alarm.Com Holdings, Inc. (ALRM), purchased 26,000 shares at $48.36 per share, for a total transaction value of $1,257,281.00. Following this transaction, Trundle Stephen now holds 1,853,751 shares of ALRM.

This purchase represents a 1.00% increase in Trundle Stephen's stake in the company. This is considered a medium-conviction trade.

The trade was executed on Tuesday, November 18, 2025 and publicly disclosed via SEC Form 4 filing on Thursday, November 20, 2025, 2 days after the trade was made.

Alarm.Com Holdings, Inc. operates in the TECHNOLOGY sector, specifically within the SOFTWARE - APPLICATION industry. Insider buying activity in this sector can provide valuable signals about industry trends and company-specific developments.

Trundle Stephen

CEO

Stephen Trundle is the President and Chief Executive Officer of Alarm.com Holdings, Inc. (ALRM), a position he has held since May 2003, and he has served as a member of the company's Board of Directors since October 2003.[[1]](https://www.zoominfo.com/p/Stephen-Trundle/57976767)[[2]](https://investors.alarm.com/governance/board-of-directors/person-details/default.aspx?ItemId=bbc1f55c-ad8d-4577-865e-419a7f03e620)[[6]](https://investors.alarm.com/governance/executive-management/default.aspx) Prior to joining Alarm.com, Trundle held various roles at MicroStrategy Incorporated, including Vice President of Technology and Chief Technology Officer.[[1]](https://www.zoominfo.com/p/Stephen-Trundle/57976767)[[2]](https://investors.alarm.com/governance/board-of-directors/person-details/default.aspx?ItemId=bbc1f55c-ad8d-4577-865e-419a7f03e620)[[3]](https://www.sourcesecurity.com/people/steve-trundle.html) He earned an A.B. in Engineering and an A.B. in Government from Dartmouth College.[[1]](https://www.zoominfo.com/p/Stephen-Trundle/57976767)[[2]](https://investors.alarm.com/governance/board-of-directors/person-details/default.aspx?ItemId=bbc1f55c-ad8d-4577-865e-419a7f03e620) Under his leadership, Alarm.com provides IoT solutions for security, video monitoring, and smart home devices across residential and commercial markets.[[1]](https://www.zoominfo.com/p/Stephen-Trundle/57976767)

View full insider profile →

Trade Price

$48.36

Quantity

26,000

Total Value

$1,257,281.00

Shares Owned

1,853,751

Trade Date

Tuesday, November 18, 2025

96 days ago

SEC Filing Date

Thursday, November 20, 2025

Filed 2 days after trade

TECHNOLOGYSOFTWARE - APPLICATION

About Alarm.Com Holdings, Inc.

Company Overview

No company information available
View news mentioning ALRM

💬 Want Deeper Insight?

Use our AI assistant to ask questions about this trade, the insider, or the company.

Chat with AI

Share this trade

https://insidersignal.ai/trade/1299252

🚀 Track Insider Trades in Real-Time

Create a free account to access our full database of insider trades, AI-powered analysis, price alerts, and discover what corporate executives are buying and selling.

Create Free AccountLearn More

✓ Free forever plan available  •  ✓ No credit card required  •  ✓ Cancel anytime