Alarm.com Holdings, Inc. - ALRM

Ownership (Schedule 13D / 13G) · latest 50 filings · Back to all files
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Filed Form Reporting person Percent Shares SEC
May 15, 2026 SCHEDULE 13G/A DISCIPLINED GROWTH INVESTORS INC /MN 6.6% 3,268,986 View
May 13, 2026 SCHEDULE 13G Bank of Montreal 5.38% 2,675,661 View
May 13, 2026 SCHEDULE 13G BANK OF MONTREAL HOLDING INC. 0.0% 3,077 View
May 13, 2026 SCHEDULE 13G BMO NESBITT BURNS INC. WEALTH MANAGEMENT 0.0% 3,053 View
May 13, 2026 SCHEDULE 13G BMO ASSET MANAGEMENT INC. 0.0% 3,051 View
May 13, 2026 SCHEDULE 13G BMO NESBITT BURNS INC. 0.0% 24 View
May 13, 2026 SCHEDULE 13G BMO FINANCIAL CORP. 0.04% 19,846 View
May 13, 2026 SCHEDULE 13G BMO BANK N.A. 0.0% 1,437 View
May 13, 2026 SCHEDULE 13G BMO FAMILY OFFICE, LLC 0.0% 409 View
May 13, 2026 SCHEDULE 13G 1001271606 ONTARIO INC 4.83% 2,403,054 View
May 13, 2026 SCHEDULE 13G Burgundy Asset Management, Inc. 4.83% 2,403,054 View
Apr 29, 2026 SCHEDULE 13G Vanguard Capital Management 5.09% 2,530,042 View
Apr 28, 2026 SCHEDULE 13G Vanguard Portfolio Management 8.04% 3,997,102 View
Mar 26, 2026 SCHEDULE 13G/A The Vanguard Group 0.0% 0 View
Feb 17, 2026 SCHEDULE 13G/A DISCIPLINED GROWTH INVESTORS INC /MN 6.9% 3,417,517 View
Percent = "% of class represented by amount beneficially owned" for this reporting person in the filed 13D/13G. Shares = reported beneficial ownership amount for the same row (not portfolio shares from 13F). Amendments (/A) can repeat the same holder over time, so rows should not be summed. Extraction is best-effort from filing text and can be missing or noisy; verify exact figures via the SEC link in each row.