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Of the 12 tracked institutions holding ALRM, 5 have a 3-year clone track record — 5 of them beat the S&P. Average holder's clone alpha: +6.1pt. It's a gauge of who owns the name, not just how many.
Among the 12 tracked institutional investors we monitor, ALRM (ALARM COM HLDGS INC) is held with a combined value of $964.51M across 20,056,494 shares. The largest holder is BlackRock, Inc. with a position worth $443.47M. Magnetar Financial LLC opened a new position in the most recent quarter. 6 funds increased their holdings. 5 funds reduced their position.
Total Institutional Value
$964.51M
Total Shares Held
20,056,494
Institutional Holders
12
Ranked by estimated dollars moved (share change × implied price). 13F data lags up to 45 days.
| # | Fund | Value↓ | Portfolio % | Change |
|---|---|---|---|---|
| 1 | BlackRock, Inc. | $443.47M | 0.01% | +3.9% |
| 2 | VANGUARD GROUP INC | $320.74M | 0.00% | +0.9% |
| 3 | STATE STREET CORP | $102.23M | 0.00% | +7.5% |
| 4 | FMR LLC | $36.23M | 0.00% | -20.0% |
| 5 | PRICE T ROWE ASSOCIATES INC /MD/ | $26.97M | 0.00% | -8.3% |
| 6 | AQR CAPITAL MANAGEMENT LLC | $12.41M | 0.00% | +60.9% |
| 7 | MILLENNIUM MANAGEMENT LLC | $8.96M | 0.01% | +94.4% |
| 8 | TWO SIGMA ADVISERS, LP | $5.23M | 0.01% | +58.6% |
| 9 | Point72 Asset Management, L.P. | $3.44M | 0.01% | -21.3% |
| 10 | CITADEL ADVISORS LLC | $2.66M | 0.00% | -4.0% |
As of the latest SEC 13F filings, BlackRock, Inc. is the largest institutional holder of ALRM with a position worth $443.47M, representing 0.01% of their portfolio. In total, 12 institutional investors hold ALRM with a combined value of $964.51M.
In the most recent quarter, 1 fund opened a new position in ALRM. Additionally, 6 increased their holdings and 5 reduced their positions.
Institutional investors hold $964.51M worth of ALRM stock across 12 positions. The largest institutional holder is BlackRock, Inc. with $443.47M in holdings.
A 13F filing is a quarterly report required by the SEC from institutional investment managers with over $100 million in assets. It discloses their holdings in U.S. equities. For ALRM, these filings reveal which major funds are accumulating or reducing positions, providing insights into institutional sentiment.
Get notified when hedge funds change their ALRM positions.
Alpha = the manager's 3-year clone return minus the S&P 500. A skilled roster is a stronger tell than a crowded one — though even skilled managers' edge doesn't reliably survive the 13F disclosure lag. Why →
| 2026-08-12 |
SEC Schedule 13D (activist) and 13G (passive) filings for ALRM. Filed when an investor acquires 5%+ ownership.
Last Close
$57.37
2026-10-16
YTD
+12.0%
98% of 52-week range
