Stephen Trundle sold $2.9M of Alarm.com Holdings, Inc. (ALRM) stock

Stephen Trundle, Chief Executive Officer of Alarm.com Holdings, Inc. (ALRM), sold 50,000 shares of ALRM stock worth $2.9M, per an SEC Form 4 filed Aug 25, 2026.

The sale was pre-arranged (a 10b5-1 plan or an option exercise), not a fresh decision.

The trade happened on Aug 24, 2026, 1 day before it was made public.

ALRM has moved -7.7% since the trade date, from $57.58 to $53.14 (Sep 21, 2026 close).