Alarm.com Holdings, Inc. (ALRM) ownership: Top institutional holder: BlackRock, Inc. ($394.62M). Insider activity: Net Seller (0 buys, 20 sells). SEC EDGAR first-party data.
| Holder | Shares | Market Value | Reported |
|---|---|---|---|
| BlackRock, Inc. | 9136795.00 | $394.62M | 2026-03-31 |
| VANGUARD GROUP INC | 6286541.00 | $320.74M | 2025-12-31 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 3955703.00 | $170.85M | 2026-03-31 |
| DISCIPLINED GROWTH INVESTORS INC /MN | 3268986.00 | $141.19M | 2026-03-31 |
| BANK OF MONTREAL /CAN/ | 2657641.00 | $114.78M | 2026-03-31 |
| VANGUARD CAPITAL MANAGEMENT LLC | 2154062.00 | $93.03M | 2026-03-31 |
| STATE STREET CORP | 2036138.00 | $87.94M | 2026-03-31 |
| MORGAN STANLEY | 1263002.00 | $54.55M | 2026-03-31 |
| Insider | Transaction | Value | Date |
|---|---|---|---|
| Sell | null | 2026-06-10 | |
| Sell | null | 2026-06-10 | |
| Sell | null | 2026-06-10 | |
| Sell | null | 2026-06-04 | |
| Sell | null | 2026-06-04 | |
| Sell | null | 2026-06-04 | |
| Sell | null | 2026-06-04 | |
| Sell | null | 2026-06-04 |
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Institutional data from SEC Form 13F. Insider data from SEC Form 4. Congressional data from STOCK Act disclosures. Not personalized investment advice.