Security key
011642105
Alarm.com Holdings, Inc. - Common Stock (ALRM)
CUSIP: 011642105
Q3 2026 13F Holders as of 30 Sep 2026
- Security type / class
- Equity / Common Stock
- Total 13F shares
- 2,318,406
- Total 13F value
- $126,288,511
- Share change
- -29,846
- SEC-reported price per share
- $54.47
- Number of holders
- 82
- Value change
- -$561,187
- Number of buys
- 36
- Number of sells
- 28
- Shares outstanding
- 49,501,447
Holder snapshot
6 signals
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q3 2026
Institutions
82
Top holders
10
ALRM full security history
Ownership snapshot
Full 13F holder table
Alarm.com Holdings, Inc. SEC filings
Alarm.com Holdings, Inc. company facts
Broader feeds
Reporting periods
Holder history for CUSIP 011642105
Recent filing periods:
Ownership snapshot
Top reported holders of ALRM - Alarm.com Holdings, Inc. - Common Stock (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
BlackRock, Inc.
Disclosed value leader
BlackRock, Inc.
Comparable rows
6/15
Latest evidence
02 Sep 2026
13D/G
13F
3/4/5
Lead comparable stake: 17%
9 rows are not safely comparable across share classes.
13D/G row: BlackRock, Inc.
Showing 1-6 of 15 holder rows.
Quick read
BlackRock, Inc. leads the comparable SEC ownership view at 17%.
6 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens BlackRock, Inc.'s linked filing trail.
Comparable ownership
Top 5
BlackRock, Inc.
17%
VANGUARD PORTFOLIO MANAGEMENT LLC
8%
DISCIPLINED GROWTH INVESTORS INC /MN
7.3%
BANK OF MONTREAL /CAN/
7%
VANGUARD CAPITAL MANAGEMENT LLC
5.1%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| BlackRock, Inc. |
13D/G
13F
Company
|
17%
Reported 13D/G
· 31 Mar 2025
|
$448,143,877
8,340,664 shares
|
-$52,691,023 | 31 Mar 2025 |
| VANGUARD PORTFOLIO MANAGEMENT LLC |
13F
13D/G
Company · Vanguard Portfolio Management
|
8%
Reported 13D/G
· 31 Mar 2026
|
$188,516,415
4,035,026 shares
|
— | 30 Jun 2026 |
| DISCIPLINED GROWTH INVESTORS INC /MN |
13F
13D/G
Company
|
7.3%
Reported 13D/G
· 30 Jun 2026
|
$167,519,886
3,585,614 shares
|
— | 30 Jun 2026 |
| BANK OF MONTREAL /CAN/ |
13D/G
13F
Bank of Montreal · Company
|
7%
Reported 13D/G
· 30 Jun 2026
|
$176,180,699
3,455,201 shares
|
+$39,748,745 | 30 Jun 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC |
13D/G
13F
Vanguard Capital Management · Company
|
5.1%
Reported 13D/G
· 31 Mar 2026
|
$109,272,514
2,530,042 shares
|
$0 | 31 Mar 2026 |
| BROWN CAPITAL MANAGEMENT LLC |
13D/G
13F
Company
|
4.8%
Reported 13D/G
· 31 Dec 2024
|
$128,556,010
2,392,630 shares
|
$0 | 31 Dec 2024 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q3 2026
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
82
Shares
2,318,406
Rows available
82
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q3 2026 vs Q2 2026 Across Filers
Q2 2026 holders
314
Q3 2026 holders
82
Holder diff
-232
| Investor | Q2 2026 Shares | Q3 2026 Shares | Share Diff | Share Chg % | Q2 2026 value | Q3 2026 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend