Trundle Stephen - Insider Non-Derivative Transactions at Alarm.com Holdings, Inc. (ALRM) - (SEC)

Updated on January 3, 2026.

According to recent SEC insider information filed on Nov 20, 2025, Trundle Stephen's relationship to Alarm.com Holdings, Inc. (ALRM) is Director,Officer (Chief Executive Officer), and currently has 1,315,343 shares of Common Stock.

The chart below shows the number of shares owned, and the table shows the recent insider transactions.

You can see similar information for other ALRM insiders.

Related Topics: SEC Topic List.

Data Source: SEC.

Trundle Stephen - Insider Non-Derivative Transactions of ALRM Common Stock

Trundle Stephen - Insider Non-Derivative Transactions at ALRM

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Date	Transaction	No. of Shares	Price Per Share	Shares Owned After Transactions
Nov 21, 2025	P -- (Common Stock)	9900	48.06	1315243
Nov 21, 2025	P -- (Common Stock)	100	48.66	1315343
Nov 20, 2025	P -- (Common Stock)	12469	48.53	1305343
Nov 19, 2025	P -- (Common Stock)	3531	48.57	1292874
May 24, 2025	Sell -- (Common Stock)	3644	56.66	268859
May 23, 2025	Acquisition -- (Common Stock)	25000	0	272503
May 17, 2025	Sell -- (Common Stock)	3626	59.51	247503
Apr 3, 2025	Sell -- (Common Stock)	1553	55.49	251129
Dec 11, 2024	Sell -- (Common Stock)	1999	68.81	252682
Dec 11, 2024	Sell -- (Common Stock)	45501	68.15	254681
Dec 11, 2024	M -- (Common Stock)	47500	21.7	300182
May 23, 2024	F -- (Common Stock)	2255	67.02	252682
May 23, 2024	Acquisition -- (Common Stock)	25000	0	254937
May 16, 2024	F -- (Common Stock)	4512	70.05	229937
Apr 3, 2024	Sell -- (Common Stock)	3217	70	234449
Mar 2, 2024	G -- (Common Stock)	5000	0	237666
Feb 24, 2024	Sell -- (Common Stock)	600	74.47	1289343
Feb 24, 2024	Sell -- (Common Stock)	49400	73.79	1289943
May 23, 2023	Acquisition -- (Common Stock)	25000	0	242666
May 17, 2023	Sell -- (Common Stock)	4694	48.82	217666
Apr 4, 2023	Sell -- (Common Stock)	169	50.08	222360
Apr 4, 2023	Sell -- (Common Stock)	4618	49.62	222529