Alarm.com Holdings, Inc. - ALRM
Ownership (Schedule 13D / 13G) · latest 50 filings
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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.