13F Insight
DOSSIER · 13F Holders · Q1 2026Technology · Services-Prepackaged SoftwareMost-boughtAI cap-ex
ALRM

ALARM COM HLDGS INC

309 institutions still hold ALARM COM HLDGS INC as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 011642105·Services-Prepackaged Software·309 13F holders·last filed Mar 31, 2026
Market cap
—
▲ 8.9%
vs prior quarter
13F value held
$1.5B
51.0% inst. owned
of float
Holders
309
+38 QoQ
filers reporting
Activity
+8 / −53
+874 added · −891 reduced
this quarter
Concentration
26.72%
BlackRock, Inc. #1
top holder share
AI Holders Summary · Q1 2026

309 institutions reported ALRM in Q1 2026. BlackRock, Inc. leads at 26.7% of the visible book. +38 net new institutions vs prior quarter — accumulation reading.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
BlackRock, Inc.
CIK 0002012383
$395M9.1M0.01%Q1 202602
Vanguard Portfolio Management
CIK 0002100121· Index
$171M4.0M0.01%Q1 202603
DISCIPLINED GROWTH INVESTORS INC /MN
CIK 0001050442
$141M3.3M2.89%Q1 202604
BANK OF MONTREAL /CAN/
CIK 0000927971
$119M2.8M0.04%Q1 202605
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$93M2.2M0.00%Q1 202606
STATE STREET CORP
CIK 0000093751
$88M2.0M0.00%Q1 202607
MORGAN STANLEY
CIK 0000895421
$55M1.3M0.00%Q1 202608
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$54M1.3M0.00%Q1 202609
DIMENSIONAL FUND ADVISORS LP
CIK 0000354204· Quasi-passive
$48M1.1M0.01%Q1 202610
GENEVA CAPITAL MANAGEMENT LLC
CIK 0001009232
$46M1.1M0.98%Q1 202611
FMR LLC
CIK 0000315066
$42M969K0.00%Q1 202612
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
CIK 0001164508
$34M779K0.02%Q1 202613
GOLDMAN SACHS GROUP INC
CIK 0000886982
$31M715K0.00%Q1 202614
TWO SIGMA INVESTMENTS, LP
CIK 0001179392
$29M681K0.02%Q1 202615
NORTHERN TRUST CORP
CIK 0000073124· Index
$28M642K0.00%Q1 202616
RIVERBRIDGE PARTNERS LLC
CIK 0001112325
$26M593K0.63%Q1 202617
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
CIK 0000884546· Index
$25M580K0.00%Q1 202618
BNP PARIBAS FINANCIAL MARKETS
CIK 0001166588
$20M458K0.01%Q1 202619
Select Equity Group, L.P.
CIK 0001592643
$18M344K0.08%Q4 202520
BROWN CAPITAL MANAGEMENT LLC
CIK 0000885062
$16M359K2.20%Q1 2026
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