ALARM COM HLDGS INC ALRM
COM · Common Stock · CUSIP 011642105 · ISIN US0116421050
American security company
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($3.7m this quarter). Holder counts are more reliable. Shares outstanding: 49.9m as of 2025-07-31, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $56.57. Options: 4 managers hold calls ($1.4m notional), 2 hold puts ($5.0k).
Trends to Q2 2025
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 255 |
| Q4 2022 | 246 |
| Q1 2023 | 248 |
| Q2 2023 | 252 |
| Q3 2023 | 250 |
| Q4 2023 | 286 |
| Q1 2024 | 302 |
| Q2 2024 | 298 |
| Q3 2024 | 299 |
| Q4 2024 | 310 |
| Q1 2025 | 309 |
| Q2 2025 | 306 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q3 2023 | 114 | 134 |
| Q4 2023 | 122 | 128 |
| Q1 2024 | 146 | 144 |
| Q2 2024 | 163 | 129 |
| Q3 2024 | 140 | 149 |
| Q4 2024 | 156 | 156 |
| Q1 2025 | 138 | 162 |
| Q2 2025 | 150 | 160 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2024 | $1.4m | $305.7k | 0.22 |
| Q4 2024 | $2.3m | $449.8k | 0.19 |
| Q1 2025 | $694.7k | $272.7k | 0.39 |
| Q2 2025 | $1.4m | $5.0k | 0.00 |
Biggest buyers
| ROYAL BANK OF CANADA | Added | +511.2k |
| BlackRock, Inc. | Added | +278.5k |
| MORGAN STANLEY | Added | +192.5k |
| Handelsbanken Fonder AB | Added | +114.3k |
| LAZARD ASSET MANAGEMENT LLC | Added | +106.6k |
| Burgundy Asset Management Ltd. | Added | +103.5k |
| DISCIPLINED GROWTH INVESTORS INC /MN | Added | +102.5k |
| TUDOR INVESTMENT CORP ET AL | Added | +96.2k |
| MARSHALL WACE, LLP | Added | +95.1k |
| Qube Research & Technologies Ltd | Added | +70.8k |
Biggest sellers
| GOLDMAN SACHS GROUP INC | Reduced | -809.7k |
| Nuveen, LLC | Reduced | -280.1k |
| RIVERBRIDGE PARTNERS LLC | Reduced | -129.3k |
| ACADIAN ASSET MANAGEMENT LLC | Reduced | -108.0k |
| BROWN CAPITAL MANAGEMENT LLC | Reduced | -92.6k |
| UBS Group AG | Reduced | -90.1k |
| Richard Bernstein Advisors LLC | Sold out | -76.1k |
| Motley Fool Wealth Management, LLC | Reduced | -72.9k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | Reduced | -69.0k |
| VICTORY CAPITAL MANAGEMENT INC | Reduced | -65.4k |
Biggest calls
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $1.2m20.4k shares |
| CITADEL ADVISORS LLC | Reduced | $254.6k4.5k shares |
| SIMPLEX TRADING, LLC | Reduced | $33.0k600 shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Biggest puts
| SIMPLEX TRADING, LLC | New | $5.0k100 shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| BlackRock, Inc. 13G · institution -2.1 pts · filed 2025-04-29 | 16.8% |
| VANGUARD PORTFOLIO MANAGEMENT LLC 13G · institution new · filed 2026-04-28 | 8.0% |
| BANK OF MONTREAL /CAN/ 13G · institution +1.6 pts · filed 2026-08-12 | 7.0% |
| DISCIPLINED GROWTH INVESTORS INC /MN 13G · institution -0.3 pts · filed 2026-05-15 | 6.6% |
| VANGUARD CAPITAL MANAGEMENT LLC 13G · institution new · filed 2026-04-29 | 5.1% |
Fell to 5% or below in the last year: VANGUARD GROUP INC (0.0%, 2026-03-26; now reported by VANGUARD PORTFOLIO MANAGEMENT LLC)
Insider purchases and sales in Q2 2025
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q3 2023 | 0 | — | 2 | $1.0m | — |
| Q4 2023 | 0 | — | 0 | — | — |
| Q1 2024 | 0 | — | 6 | $7.9m | $5.7m |
| Q2 2024 | 0 | — | 5 | $642.0k | $642.0k |
| Q3 2024 | 0 | — | 2 | $1.0m | — |
| Q4 2024 | 0 | — | 3 | $5.6m | — |
| Q1 2025 | 0 | — | 1 | $294.0k | — |
| Q2 2025 | 0 | — | 6 | $2.0m | $1.9m |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2025-06-11 | Evans Stephen C. Director | Sold | $59.6k1.0k shares |
| 2025-05-27 | Ramos Daniel Officer | Sold plan | $403.8k7.0k shares |
| 2025-05-23 | Trundle Stephen Chief Executive Officer, director | Sold plan | $206.5k3.6k shares |
| 2025-05-23 | Kerzner Daniel Officer | Sold plan | $125.4k2.2k shares |
| 2025-05-23 | BEDELL JEFFREY A Officer | Sold plan | $124.9k2.2k shares |
| 2025-05-23 | Ramos Daniel Officer | Sold plan | $99.8k1.8k shares |
| 2025-05-16 | Trundle Stephen Chief Executive Officer, director | Sold plan | $215.8k3.6k shares |
| 2025-05-16 | Kerzner Daniel Officer | Sold plan | $120.2k2.0k shares |
| 2025-05-16 | BEDELL JEFFREY A Officer | Sold plan | $120.2k2.0k shares |
| 2025-05-16 | Ramos Daniel Officer | Sold plan | $98.0k1.6k shares |
| 2025-05-16 | Bradley Kevin Christopher Chief Financial Officer | Sold plan | $23.2k390 shares |
| 2025-05-14 | Ramos Daniel Officer | Sold plan | $413.8k6.9k shares |
| 2025-04-02 | Trundle Stephen Chief Executive Officer, director | Sold plan | $86.2k1.6k shares |
| 2025-04-02 | Kerzner Daniel See Remarks | Sold plan | $51.7k932 shares |
| 2025-04-02 | Ramos Daniel See Remarks | Sold plan | $43.1k777 shares |
| 2025-04-02 | BEDELL JEFFREY A See Remarks | Sold plan | $43.1k777 shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q2 2025
| Manager | Shares | Change |
|---|---|---|
| BlackRock, Inc. 0.01% of their portfolio | 9.4m $531.8m | Added +278.5k |
| VANGUARD GROUP INC 0.01% of their portfolio | 6.3m $353.8m | Added +24.3k |
| DISCIPLINED GROWTH INVESTORS INC /MN 3.78% of their portfolio | 3.5m $197.5m | Added +102.5k |
| STATE STREET CORP 0.00% of their portfolio | 2.0m $111.7m | Added +28.2k |
| BROWN CAPITAL MANAGEMENT LLC 2.80% of their portfolio | 1.7m $96.4m | Reduced -92.6k |
| GENEVA CAPITAL MANAGEMENT LLC 1.24% of their portfolio | 1.3m $73.8m | Reduced -5.4k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 1.2m $68.0m | Added +15.8k |
| MORGAN STANLEY 0.00% of their portfolio | 1.2m $67.9m | Added +192.5k |
| DIMENSIONAL FUND ADVISORS LP 0.01% of their portfolio | 1.0m $58.6m | Reduced -14.6k |
| Burgundy Asset Management Ltd. 0.54% of their portfolio | 985.9k $55.8m | Added +103.5k |
| RIVERBRIDGE PARTNERS LLC 0.80% of their portfolio | 882.7k $49.9m | Reduced -129.3k |
| GOLDMAN SACHS GROUP INC 0.01% of their portfolio | 740.9k $41.9m | Reduced -809.7k |
| NORTHERN TRUST CORP 0.01% of their portfolio | 688.2k $38.9m | Reduced -3.4k |
| FMR LLC 0.00% of their portfolio | 618.2k $35.0m | Added +2.3k |
| NORGES BANK 0.00% of their portfolio | 591.5k $33.5m | Unchanged |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.01% of their portfolio | 549.4k $31.1m | Added +13.7k |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 532.9k $30.1m | Added +511.2k |
| NEW YORK STATE COMMON RETIREMENT FUND 0.04% of their portfolio | 526.2k $29.8m | Unchanged |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.02% of their portfolio | 503.3k $28.5m | Added +2.6k |
| T. Rowe Price Investment Management, Inc. 0.02% of their portfolio | 467.6k $26.5m | Reduced -16.7k |
| Qube Research & Technologies Ltd 0.04% of their portfolio | 449.3k $25.4m | Added +70.8k |
| Handelsbanken Fonder AB 0.09% of their portfolio | 437.2k $24.7m | Added +114.3k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 422.8k $23.9m | Added +42.9k |
| BNP PARIBAS FINANCIAL MARKETS 0.02% of their portfolio | 405.7k $22.9m | Added +30.3k |
| DEUTSCHE BANK AG\ 0.01% of their portfolio | 401.5k $22.7m | Added +13.5k |
| Bank of New York Mellon Corp 0.00% of their portfolio | 359.5k $20.3m | Reduced -11.6k |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 357.7k $20.2m | Added +1.6k |
| DF DENT & CO INC 0.26% of their portfolio | 356.0k $20.1m | Added +4.9k |
| BANK OF MONTREAL /CAN/ 0.01% of their portfolio | 335.4k $19.0m | Added +3.5k |
| Public Sector Pension Investment Board 0.08% of their portfolio | 324.5k $18.4m | Added +13.9k |
| Connor, Clark & Lunn Investment Management Ltd. 0.06% of their portfolio | 317.3k $17.9m | Added +63.9k |
| NOMURA HOLDINGS INC 0.13% of their portfolio | 278.3k $15.7m | Reduced -17.2k |
| Assenagon Asset Management S.A. 0.02% of their portfolio | 269.5k $15.2m | Reduced -34.5k |
| PRINCIPAL FINANCIAL GROUP INC 0.01% of their portfolio | 269.0k $15.2m | Reduced -2.3k |
| CENTAURUS FINANCIAL, INC. 0.86% of their portfolio | 260.9k $14.8m | Added +7.8k |
| Fisher Asset Management, LLC 0.01% of their portfolio | 252.6k $14.3m | Reduced -284 |
| Summit Creek Advisors LLC 1.96% of their portfolio | 248.8k $14.1m | Reduced -10.7k |
| Invesco Ltd. 0.00% of their portfolio | 228.5k $12.9m | Added +37.7k |
| Select Equity Group, L.P. 0.05% of their portfolio | 218.6k $12.4m | Added +18.2k |
| Man Group plc 0.02% of their portfolio | 190.0k $10.7m | Added +38.5k |
| ALGERT GLOBAL LLC 0.21% of their portfolio | 178.5k $10.1m | Reduced -39.4k |
| Montanaro Asset Management Ltd 2.59% of their portfolio | 177.6k $10.0m | Added +2.8k |
| California Public Employees Retirement System 0.01% of their portfolio | 175.6k $9.9m | Reduced -10.3k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 173.8k $9.8m | Reduced -11.1k |
| Evanson Asset Management, LLC 0.60% of their portfolio | 169.5k $9.6m | Reduced -275 |
| ACADIAN ASSET MANAGEMENT LLC 0.02% of their portfolio | 160.7k $9.1m | Reduced -108.0k |
| JACOBS LEVY EQUITY MANAGEMENT, INC 0.04% of their portfolio | 160.7k $9.1m | Reduced -28.5k |
| SEI INVESTMENTS CO 0.01% of their portfolio | 157.2k $8.9m | Reduced -37.6k |
| Motley Fool Wealth Management, LLC 0.53% of their portfolio | 154.3k $8.7m | Reduced -72.9k |
| TUDOR INVESTMENT CORP ET AL 0.07% of their portfolio | 153.9k $8.7m | Added +96.2k |
| Squarepoint Ops LLC 0.02% of their portfolio | 151.9k $8.6m | Added +25.0k |
| Motley Fool Asset Management LLC 0.38% of their portfolio | 147.4k $8.3m | Reduced -5.6k |
| UBS Group AG 0.00% of their portfolio | 145.4k $8.2m | Reduced -90.1k |
| CITADEL ADVISORS LLC 0.01% of their portfolio | 138.1k $7.8m | Added +626 |
| BARCLAYS PLC 0.00% of their portfolio | 137.5k $7.8m | Added +46.4k |
| RHUMBLINE ADVISERS 0.01% of their portfolio | 136.0k $7.7m | Added +2.5k |
| MARSHALL WACE, LLP 0.01% of their portfolio | 135.9k $7.7m | Added +95.1k |
| MERCER GLOBAL ADVISORS INC /ADV 0.02% of their portfolio | 135.3k $7.7m | Reduced -65 |
| Legal & General Group Plc 0.00% of their portfolio | 134.1k $7.6m | Reduced -54 |
| LANDSCAPE CAPITAL MANAGEMENT, L.L.C. 0.56% of their portfolio | 126.3k $7.1m | Added +30.0k |
| LAZARD ASSET MANAGEMENT LLC 0.01% of their portfolio | 122.2k $6.9m | Added +106.6k |
| Balyasny Asset Management L.P. 0.01% of their portfolio | 116.3k $6.6m | Reduced -12.6k |
| MILLENNIUM MANAGEMENT LLC 0.01% of their portfolio | 111.1k $6.3m | Added +3.2k |
| AMERICAN CAPITAL MANAGEMENT INC 0.26% of their portfolio | 110.1k $6.2m | Reduced -9.2k |
| Trexquant Investment LP 0.07% of their portfolio | 108.4k $6.1m | Reduced -39.5k |
| Nuveen, LLC 0.00% of their portfolio | 107.8k $6.1m | Reduced -280.1k |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 101.5k $5.7m | Reduced -11.1k |
| Cubist Systematic Strategies, LLC 0.06% of their portfolio | 100.1k $5.7m | Added +23.7k |
| ENVESTNET ASSET MANAGEMENT INC 0.00% of their portfolio | 98.4k $5.6m | Reduced -17.1k |
| Russell Investments Group, Ltd. 0.01% of their portfolio | 96.3k $5.4m | Reduced -18.2k |
| Swiss National Bank 0.00% of their portfolio | 90.1k $5.1m | Reduced -900 |
| JANE STREET GROUP, LLC 0.01% of their portfolio | 87.7k $5.0m | Reduced -27.0k |
| TWO SIGMA INVESTMENTS, LP 0.01% of their portfolio | 85.3k $4.8m | Added +45.1k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 83.3k $4.7m | Added +10.4k |
| AQR CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 82.3k $4.7m | Added +23.3k |
| SEIZERT CAPITAL PARTNERS, LLC 0.20% of their portfolio | 81.4k $4.6m | Added +1.8k |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.01% of their portfolio | 79.3k $4.5m | Reduced -4.3k |
| Thematics Asset Management 0.18% of their portfolio | 71.7k $4.1m | Reduced -2.6k |
| CANADA PENSION PLAN INVESTMENT BOARD 0.00% of their portfolio | 64.6k $3.7m | Added +62.5k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.01% of their portfolio | 62.7k $3.5m | Added +1.9k |
| D. E. Shaw & Co., Inc. 0.00% of their portfolio | 62.3k $3.5m | Added +15.4k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 62.2k $3.5m | Reduced -69.0k |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC 0.01% of their portfolio | 60.5k $3.4m | New |
| CITIGROUP INC 0.00% of their portfolio | 59.2k $3.3m | Reduced -27.5k |
| CAPITAL FUND MANAGEMENT S.A. 0.04% of their portfolio | 59.0k $3.3m | Added +25.0k |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 58.5k $3.3m | Reduced -32 |
| PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO 0.01% of their portfolio | 57.6k $3.3m | Added +17.7k |
| HSBC HOLDINGS PLC 0.00% of their portfolio | 56.5k $3.2m | Added +26.0k |
| PRUDENTIAL FINANCIAL INC 0.00% of their portfolio | 51.5k $2.9m | Added +3.1k |
| Campbell & CO Investment Adviser LLC 0.18% of their portfolio | 50.7k $2.9m | Added +46.5k |
| Holocene Advisors, LP 0.01% of their portfolio | 49.3k $2.8m | Reduced -948 |
| CANADA LIFE ASSURANCE Co 0.00% of their portfolio | 48.7k $2.8m | Reduced -765 |
| Engineers Gate Manager LP 0.03% of their portfolio | 48.0k $2.7m | Reduced -15.5k |
| New Age Alpha Advisors, LLC 0.11% of their portfolio | 45.8k $2.6m | Added +44.3k |
| FIRST TRUST ADVISORS LP 0.00% of their portfolio | 44.8k $2.5m | Added +11.3k |
| PNC Financial Services Group, Inc. 0.00% of their portfolio | 44.7k $2.5m | Reduced -305 |
| AMERICAN CENTURY COMPANIES INC 0.00% of their portfolio | 43.6k $2.5m | Reduced -7.3k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 43.3k $2.4m | Added +226 |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND 0.00% of their portfolio | 42.3k $2.4m | Reduced -58.3k |
| MARTINGALE ASSET MANAGEMENT L P 0.06% of their portfolio | 42.0k $2.4m | Added +2.4k |