NEVIN DARIUS G 4

What Happened

• Nevin Darius G, a director of Alarm.com Holdings (ALRM), exercised 36,000 options at $21.70/share (cost $781,200) on 2026-03-18 and sold the resulting 36,000 shares the same day in an open-market sale for a weighted average $46.17/share (proceeds $1,662,120). Net proceeds from the round-trip were about $880,920.
• The filing shows the derivative (the options) was converted/disposed in the exercise (reported as a $0 disposition for the derivative instrument).

Key Details

• Transaction date: 2026-03-18; Form 4 filed 2026-03-19 (timely).
• Exercise: 36,000 shares at $21.70 each = $781,200 (code M — option exercise).
• Sale: 36,000 shares at weighted avg $46.17 each = $1,662,120 (code S). Sales occurred in multiple trades at $45.83–$46.65 per share (footnote F2).
• Sale executed pursuant to a Rule 10b5-1 trading plan adopted 12/16/2024 (footnote F1).
• The options were "immediately exercisable and fully vested" (footnote F4).
• Some securities are held by G3 Investment Holdings, LLC, of which the reporting person is a co-owner and for which he disclaims beneficial ownership except to the extent of pecuniary interest (footnote F3).
• Amount of shares owned after the transactions is not specified in the provided filing details.

Context

• This was an exercise followed by an immediate sale (a cashless/same-day round-trip), executed under a pre-established 10b5-1 plan — a common way insiders sell shares without implying a change in view of the company. The filing is factual and does not state the reporting person's motivation.