ALARM COM HLDGS INC (ALRM)
Institutional ownership reported to the SEC as of Q2 2026, across 32 quarters.
Institutions report 48,512,392 shares against 49,090,228 outstanding. Shares only - option lines are excluded, which is why this can be compared with the company at all. The count comes from the cover page of the company's own most recent report, so it is dated when that was filed rather than at quarter end. A figure this high can overstate: where an adviser and a sub-adviser both report the same shares, both are counted.
Calls and puts are the parts of reported value carried in derivative lines rather than shares, and they point in opposite directions: a manager holding calls is positioned for the security, one holding puts against it - or hedging shares they already own, which is why index funds carry so many. Most sites add the two together and report one figure, which averages away the only interesting part.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| BlackRock, Inc. | $443.5M | 9,492,105 | 0.01% | 8q | +3.9%+$16.6M |
| VANGUARD PORTFOLIO MANAGEMENT LLC | $188.5M | 4,035,026 | 0.01% | 2q | +2.0%+$3.7M |
| DISCIPLINED GROWTH INVESTORS INC /MN | $167.5M | 3,585,614 | 2.84% | 26q | +9.7%+$14.8M |
| BANK OF MONTREAL /CAN/ | $165.2M incl. $3.7M options PUT | 3,455,190 | 0.05% | 31q | +30.0%+$38.1M |
| STATE STREET CORP | $102.2M | 2,188,123 | 0.00% | 31q | +7.5%+$7.1M |
| VANGUARD CAPITAL MANAGEMENT LLC | $100.0M | 2,141,371 | 0.00% | 2q | -0.6%-$592.9K |
| GEODE CAPITAL MANAGEMENT, LLC | $62.5M | 1,338,291 | 0.00% | 31q | +6.6%+$3.9M |
| DIMENSIONAL FUND ADVISORS LP | $58.8M | 1,258,666 | 0.01% | 31q | +12.6%+$6.6M |
| MORGAN STANLEY | $55.3M | 1,183,422 | 0.00% | 35q | -6.3%-$3.7M |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | $47.2M | 1,010,774 | 0.02% | 26q | +29.7%+$10.8M |
| GENEVA CAPITAL MANAGEMENT LLC | $38.7M | 828,409 | 0.89% | 26q | -22.6%-$11.3M |
| FMR LLC | $36.2M | 775,426 | 0.00% | 31q | -20.0%-$9.0M |
| TWO SIGMA INVESTMENTS, LP | $31.6M | 676,619 | 0.02% | 15q | -0.7%-$217.9K |
| NORTHERN TRUST CORP | $31.0M | 662,824 | 0.00% | 31q | +3.2%+$963.2K |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $29.4M | 630,227 | 0.00% | 31q | +8.7%+$2.4M |
| GOLDMAN SACHS GROUP INC | $28.0M | 599,173 | 0.00% | 16q | +6.0%+$1.6M |
| PRICE T ROWE ASSOCIATES INC /MD/ | $27.0M | 577,171 | 0.00% | 31q | -8.3%-$2.4M |
| AMERICAN CENTURY COMPANIES INC | $26.9M | 575,362 | 0.01% | 23q | +99.5%+$13.4M |
| ACADIAN ASSET MANAGEMENT LLC | $25.1M | 538,569 | 0.03% | 11q | +41.4%+$7.4M |
| Select Equity Group, L.P. | $21.6M | 462,015 | 0.11% | 12q | +17.8%+$3.3M |
| Public Sector Pension Investment Board | $21.0M | 449,034 | 0.05% | 31q | +59.5%+$7.8M |
| BANK OF AMERICA CORP /DE/ | $20.3M | 435,559 | 0.00% | 31q | +27.4%+$4.4M |
| RIVERBRIDGE PARTNERS LLC | $18.4M | 394,872 | 0.52% | 31q | -33.4%-$9.2M |
| JPMORGAN CHASE & CO | $18.4M | 395,071 | 0.00% | 31q | +592.7%+$15.7M |
| DEUTSCHE BANK AG\ | $17.3M | 369,222 | 0.01% | 34q | +3.5%+$578.2K |
| BNP PARIBAS FINANCIAL MARKETS | $16.5M | 352,261 | 0.01% | 11q | -23.0%-$4.9M |
| VANGUARD FIDUCIARY TRUST CO | $15.4M | 329,224 | 0.00% | 2q | -3.7%-$595.9K |
| Bank of New York Mellon Corp | $14.3M | 306,917 | 0.00% | 31q | +5.9%+$798.7K |
| PRINCIPAL FINANCIAL GROUP INC | $14.0M | 300,689 | 0.01% | 31q | HELD |
| WELLS FARGO & COMPANY/MN | $14.0M | 299,465 | 0.00% | 31q | +24.2%+$2.7M |
| NOMURA HOLDINGS INC | $12.4M | 265,748 | 0.01% | 9q | +6.7%+$784.1K |
| AQR CAPITAL MANAGEMENT LLC | $12.4M | 265,580 | 0.00% | 14q | +60.9%+$4.7M |
| CENTAURUS FINANCIAL, INC. | $12.3M | 263,992 | 0.48% | 31q | -2.9%-$366.7K |
| Invesco Ltd. | $11.4M | 243,487 | 0.00% | 31q | -9.5%-$1.2M |
| FEDERATED HERMES, INC. | $10.5M | 225,238 | 0.02% | 18q | +2.0%+$206.5K |
| D. E. Shaw & Co., Inc. | $10.4M | 223,355 | 0.00% | 21q | -6.3%-$706.0K |
| Nuveen, LLC | $9.6M | 206,016 | 0.00% | 6q | -41.3%-$6.8M |
| MILLENNIUM MANAGEMENT LLC | $9.0M | 191,877 | 0.00% | 24q | +94.4%+$4.4M |
| Qube Research & Technologies Ltd | $8.9M | 191,175 | 0.01% | 15q | -45.3%-$7.4M |
| DF DENT & CO INC | $8.8M | 187,384 | 0.17% | 25q | -37.5%-$5.3M |
| NORGES BANK | $7.8M | 167,419 | 0.00% | 32q | +40.9%+$2.3M |
| MARSHALL WACE, LLP | $7.8M | 166,557 | 0.01% | 9q | +34.0%+$2.0M |
| LSV ASSET MANAGEMENT | $7.6M | 163,400 | 0.01% | 5q | +28.8%+$1.7M |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | $7.6M | 162,214 | 0.01% | 12q | +182.5%+$4.9M |
| SG Americas Securities, LLC | $7.5M | 159,894 | 0.00% | 11q | -66.9%-$15.1M |
| Evanson Financial, LLC | $7.2M | 153,432 | 0.35% | new | FIRST |
| JACOBS LEVY EQUITY MANAGEMENT, INC | $6.9M | 147,959 | 0.02% | 7q | -4.3%-$313.6K |
| MERCER GLOBAL ADVISORS INC /ADV | $6.7M | 143,255 | 0.01% | 7q | +2.4%+$155.2K |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC | $6.6M | 140,313 | 0.03% | 5q | -14.9%-$1.1M |
| WINMILL & CO. INC | $5.9M | 126,100 | 1.30% | 2q | HELD |
| RHUMBLINE ADVISERS | $5.8M | 123,087 | 0.00% | 31q | -5.5%-$334.3K |
| ALGERT GLOBAL LLC | $5.6M | 120,750 | 0.07% | 16q | -77.0%-$18.9M |
| BROWN CAPITAL MANAGEMENT LLC | $5.6M | 120,604 | 1.13% | 31q | -66.4%-$11.1M |
| SEIZERT CAPITAL PARTNERS, LLC | $5.5M | 116,752 | 0.23% | 21q | +40.4%+$1.6M |
| CAPITAL FUND MANAGEMENT S.A. | $5.4M | 114,963 | 0.02% | 6q | +56.7%+$1.9M |
| Legal & General Group Plc | $5.2M | 111,918 | 0.00% | 31q | HELD |
| Montanaro Asset Management Ltd | $5.2M | 111,197 | 1.64% | 23q | -21.5%-$1.4M |
| HRT FINANCIAL LP | $5.0M | 106,998 | 0.01% | 8q | +65.5%+$2.0M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | $5.0M | 106,840 | 0.00% | 14q | +0.9%+$45.6K |
| MACKENZIE FINANCIAL CORP | $4.8M | 101,946 | 0.00% | 11q | -10.1%-$536.7K |
| Swiss National Bank | $4.4M | 94,600 | 0.00% | 31q | +1.2%+$51.4K |
| Russell Investments Group, Ltd. | $4.3M | 93,231 | 0.00% | 31q | -12.1%-$595.0K |
| ENVESTNET ASSET MANAGEMENT INC | $3.9M | 82,649 | 0.00% | 31q | -2.5%-$100.7K |
| AMERIPRISE FINANCIAL INC | $3.8M | 82,203 | 0.00% | 31q | -5.8%-$234.6K |
| OSSIAM | $3.8M | 80,687 | 0.05% | 3q | HELD |
| Schonfeld Strategic Advisors LLC | $3.7M | 79,569 | 0.01% | 9q | +342.7%+$2.9M |
| SEI INVESTMENTS CO | $3.7M | 78,810 | 0.00% | 31q | +3.7%+$131.0K |
| VICTORY CAPITAL MANAGEMENT INC | $3.6M | 78,118 | 0.00% | 28q | +215.9%+$2.5M |
| Point72 Asset Management, L.P. | $3.4M | 73,687 | 0.00% | 5q | -21.3%-$929.3K |
| LAZARD ASSET MANAGEMENT LLC | $3.4M | 71,956 | 0.01% | 28q | -16.5%-$665.8K |
| UBS Group AG | $3.3M | 70,331 | 0.00% | 31q | -47.4%-$3.0M |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | $3.3M | 69,764 | 0.00% | 31q | +18.4%+$505.7K |
| BARCLAYS PLC | $3.2M | 69,504 | 0.00% | 31q | -11.1%-$404.8K |
| Connor, Clark & Lunn Investment Management Ltd. | $3.2M | 69,453 | 0.01% | 15q | -51.5%-$3.4M |
| AMERICAN CAPITAL MANAGEMENT INC | $3.2M | 68,544 | 0.14% | 31q | -1.8%-$58.9K |
| CITADEL ADVISORS LLC | $3.1M incl. $439.2K options PUT | 56,962 | 0.00% | 31q | -4.0%-$127.7K |
| Jupiter Topco LLC | $3.0M | 65,004 | 0.00% | new | FIRST |
| ALLIANCEBERNSTEIN L.P. | $2.9M | 67,593 | 0.00% | 31q | +9.0%+$241.2K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | $2.8M | 60,684 | 0.00% | 9q | -2.3%-$66.1K |
| Summit Creek Advisors LLC | $2.8M | 59,056 | 0.94% | 31q | -69.1%-$6.2M |
| Holocene Advisors, LP | $2.6M | 55,655 | 0.01% | 10q | +144.6%+$1.5M |
| Trexquant Investment LP | $2.6M | 55,208 | 0.02% | 8q | -56.3%-$3.3M |
| FIRST TRUST ADVISORS LP | $2.5M | 53,566 | 0.00% | 6q | -21.6%-$688.7K |
| Motley Fool Asset Management LLC | $2.4M | 51,916 | 0.09% | 31q | -6.2%-$160.3K |
| PRUDENTIAL FINANCIAL INC | $2.4M | 51,744 | 0.00% | 31q | +0.9%+$22.4K |
| Brevan Howard Capital Management LP | $2.4M | 51,111 | 0.02% | 3q | +24.9%+$476.5K |
| Apollon Wealth Management, LLC | $2.2M | 47,524 | 0.03% | new | NEW |
| CANADA LIFE ASSURANCE Co | $2.2M | 46,539 | 0.00% | 27q | +15.2%+$287.4K |
| VANGUARD ASSET MANAGEMENT, Ltd | $2.1M | 45,928 | 0.00% | 2q | +2.3%+$47.3K |
| XTX Topco Ltd | $2.1M | 44,989 | 0.03% | 6q | +1.7%+$34.9K |
| Quantinno Capital Management LP | $2.1M | 44,421 | 0.00% | 26q | +125.4%+$1.2M |
| PNC Financial Services Group, Inc. | $2.0M | 43,108 | 0.00% | 31q | -2.1%-$42.9K |
| MARTINGALE ASSET MANAGEMENT L P | $1.9M | 41,469 | 0.05% | 11q | HELD |
| ZACKS INVESTMENT MANAGEMENT | $1.9M | 40,753 | 0.01% | 4q | +15.4%+$254.3K |
| Magnetar Financial LLC | $1.8M | 39,228 | 0.02% | new | NEW |
| NEW YORK STATE TEACHERS RETIREMENT SYSTEM | $1.8M | 38,147 | 0.00% | 31q | +4.3%+$73.9K |
| Balyasny Asset Management L.P. | $1.8M | 37,579 | 0.00% | 10q | -48.9%-$1.7M |
| Cardinal Capital Management | $1.7M | 37,313 | 0.21% | 17q | +6.9%+$112.5K |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | $1.7M incl. $518.6K options CALL+PUT | 24,570 | 0.00% | 31q | -34.2%-$867.0K |
| Graham Capital Management, L.P. | $1.6M | 34,910 | 0.03% | 10q | +417.1%+$1.3M |
Showing the largest 100 of 318 reported holders.
What the insiders did
Open market purchases and sales reported on Form 4 in the last 180 days. Grants, option exercises and shares surrendered to cover tax are left out: they are compensation rather than a decision to buy or sell. Where a broker filled one order in tranches the lines are summed, because it was one decision.
Officers and directors
| Date | Insider | Role | Side | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-24 | Trundle Stephen | Chief Executive Officer | Sold | 50,000 | $2.9M |
| 2026-06-10 | Ramos Daniel | See Remarks | Sold | 8,000 | $369.8K |
| 2026-08-12 | Bradley Kevin Christopher | Chief Financial Officer | Sold | 5,400 | $297.4K |
| 2026-05-26 | Trundle Stephen | Chief Executive Officer | Sold | 6,073 | $265.9K |
| 2026-05-26 | Kerzner Daniel | See Remarks | Sold | 3,944 | $172.7K |
| 2026-05-18 | Trundle Stephen | Chief Executive Officer | Sold | 2,944 | $128.2K |
| 2026-05-26 | Ramos Daniel | See Remarks | Sold | 2,532 | $110.9K |
| 2026-06-10 | Bradley Kevin Christopher | Chief Financial Officer | Sold | 2,200 | $101.5K |
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q3 2026 | 73 | $33.1M | 607,002 | 10 | 24 | 15 | 0.0% |
| Q2 2026 | 318 | $2.3B | 48,512,392 | 57 | 107 | 105 | 0.2% |
| Q1 2026 | 295 | $2.1B | 47,812,092 | 28 | 111 | 103 | 0.6% |
| Q4 2025 | 309 | $2.5B | 48,055,327 | 30 | 107 | 114 | 0.1% |
| Q3 2025 | 307 | $2.5B | 47,705,316 | 40 | 106 | 112 | 0.2% |
| Q2 2025 | 305 | $2.8B | 48,746,278 | 39 | 104 | 108 | 0.1% |
| Q1 2025 | 307 | $2.7B | 48,732,163 | 34 | 103 | 117 | 0.0% |
| Q4 2024 | 311 | $2.9B | 48,207,456 | 47 | 106 | 107 | 0.1% |
| Q3 2024 | 300 | $2.6B | 48,286,811 | 35 | 102 | 112 | 0.1% |
| Q2 2024 | 299 | $3.1B | 48,541,789 | 37 | 122 | 84 | 0.1% |
| Q1 2024 | 301 | $3.4B | 46,371,225 | 51 | 87 | 103 | 0.1% |
| Q4 2023 | 286 | $3.0B | 46,498,517 | 40 | 76 | 103 | 0.2% |
| Q3 2023 | 249 | $2.8B | 45,510,908 | 31 | 74 | 89 | 0.1% |
| Q2 2023 | 252 | $2.3B | 45,012,859 | 25 | 93 | 83 | 0.0% |
| Q1 2023 | 248 | $2.3B | 45,061,281 | 29 | 103 | 78 | 0.3% |
| Q4 2022 | 246 | $2.2B | 44,858,973 | 35 | 62 | 97 | 0.3% |
| Q3 2022 | 247 | $5.4B | 83,677,652 | 26 | 97 | 61 | 0.1% |
| Q2 2022 | 241 | $3.9B | 119,201,370 | 27 | 73 | 93 | 0.5% |
| Q1 2022 | 260 | $4.1B | 62,111,555 | 35 | 86 | 89 | 0.3% |
| Q4 2021 | 271 | $6.3B | 74,340,533 | 28 | 90 | 90 | 0.2% |
| Q3 2021 | 265 | $5.0B | 114,438,133 | 22 | 87 | 81 | 0.6% |
| Q2 2021 | 282 | $5.6B | 87,670,978 | 38 | 81 | 91 | 1.6% |
| Q1 2021 | 268 | $5.7B | 150,989,292 | 32 | 85 | 98 | 0.7% |
| Q4 2020 | 271 | $6.9B | 66,326,774 | 48 | 81 | 76 | 0.9% |
| Q3 2020 | 244 | $3.5B | 63,580,284 | 41 | 85 | 78 | 0.6% |
| Q2 2020 | 239 | $4.2B | 64,965,910 | 52 | 90 | 60 | 0.8% |
| Q1 2020 | 220 | $2.9B | 74,386,042 | 32 | 73 | 75 | 0.6% |
| Q4 2019 | 234 | $34.9B | 812,052,068 | 27 | 86 | 66 | 0.0% |
| Q3 2019 | 236 | $2.9B | 62,305,344 | 30 | 92 | 55 | 1.1% |
| Q2 2019 | 249 | $3.2B | 59,345,624 | 34 | 93 | 55 | 1.9% |
| Q1 2019 | 267 | $16.7B | 256,307,769 | 49 | 87 | 74 | 0.3% |
| Q4 2018 | 236 | $3.0B | 58,318,947 | 6 | 2 | 3 | 0.7% |
