WILLIAM BLAIR INVESTMENT MANAGEMENT LLC 13D and 13G filings for Alarm.com Holdings, Inc.:
- Schedule 13D must be filed within ten days after a person or an organization acquires beneficial ownership of more than 5% of a voting class of a company's equity securities.
- Shares have been adjusted for stock splits.
| Reported DateTime | Transaction Date | Type | Company Symbol | Filed By Symbol | Shares Owned % Owned | Shares Vs. Prev Report | View |
| 2024-11-14 11:10 am Sale | 2024-09-30 | 13G | Alarm.com Holdings, Inc. ALRM | WILLIAM BLAIR INVESTMENT MANAGEMENT LLC | 564,431 1.100% | -1,935,465 (-77.42%) | Filing |
| 2024-02-12 6:01 pm Purchase | 2023-12-31 | 13G | Alarm.com Holdings, Inc. ALRM | WILLIAM BLAIR INVESTMENT MANAGEMENT LLC | 2,499,896 5.000% | 12,542 (+0.50%) | Filing |
| 2023-02-09 1:53 pm Sale | 2022-12-31 | 13G | Alarm.com Holdings, Inc. ALRM | WILLIAM BLAIR INVESTMENT MANAGEMENT LLC | 2,487,354 4.900% | -388,391 (-13.51%) | Filing |
| 2022-02-09 6:54 pm Purchase | 2021-12-31 | 13G | Alarm.com Holdings, Inc. ALRM | WILLIAM BLAIR INVESTMENT MANAGEMENT LLC | 2,875,745 5.700% | 7,115 (+0.25%) | Filing |
| 2021-02-11 3:14 pm Purchase | 2020-12-31 | 13G | Alarm.com Holdings, Inc. ALRM | WILLIAM BLAIR INVESTMENT MANAGEMENT LLC | 2,868,630 5.800% | 2,868,630 (New Position) | Filing |