ALRM: Alarm.com Holdings, Inc. insider trading, 5% holders and institutional ownership
From public SEC filings: open-market insider purchases and sales (Form 4, last 180 days), holders of 5% or more (Schedules 13D and 13G) and institutional ownership (Form 13F). Insider and 5% data delayed 48 hours.
Insider trading
0 open-market buys totaling - and 0 sales totaling - in the last 180 days.
Activist and 5% holders
| Filed | What | Holder | Stake | Change | Filing |
|---|---|---|---|---|---|
| 2026-08-14 | 13G amendment | DISCIPLINED GROWTH INVESTORS INC /MN | 7.30% | SEC | |
| 2026-08-12 | 13G amendment | Bank of Montreal | 6.98% | SEC |
Institutional ownership (Q2 2026)
315 institutions reported holding $2.17B of Alarm.com Holdings, Inc. on Form 13F (295 the quarter before). 54 opened a new position and 35 sold out. Shares held by institutions: +1%.
| Largest holders | Shares | Value |
|---|---|---|
| BlackRock, Inc. | 9,492,105 | $443.47M |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 4,035,026 | $188.52M |
| DISCIPLINED GROWTH INVESTORS INC /MN | 3,585,614 | $167.52M |
| BANK OF MONTREAL /CAN/ | 3,455,190 | $161.43M |
| STATE STREET CORP | 2,188,123 | $102.23M |
| VANGUARD CAPITAL MANAGEMENT LLC | 2,141,371 | $100.04M |
| GEODE CAPITAL MANAGEMENT, LLC | 1,338,291 | $62.54M |
| DIMENSIONAL FUND ADVISORS LP | 1,258,666 | $58.80M |
| MORGAN STANLEY | 1,183,422 | $55.29M |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 1,010,774 | $47.22M |
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