Alarm.com Holdings, Inc. (ALRM) Insider Trading

Over the last 3 months, ALRM insiders made 0 open-market buys and 6 sales, a net sale of -$3.8M (SEC Form 4). Over the last 6 months, 225 institutions increased and 219 reduced their position (13F).

Insider Activity

Sentiment
0/100
Buys (3m)
0
Sells (3m)
6
Net (3m)
-$3.8M
Insider trades by month Buys Sells
Dec
Mar
May
Jun
Jul
Aug
Context3-month price +27.8%Institutions accumulating (13F)
DateInsiderTypeSharesPrice
Aug 25, 2026Trundle Stephendirector, officer: Chief Executive OfficerSell50,000$57.67
Aug 25, 2026Trundle Stephendirector, officer: Chief Executive OfficerOption50,000$32.17
Aug 14, 2026Bradley Kevin Christopherofficer: Chief Financial OfficerSell5,400$55.07
Jul 2, 2026Bradley Kevin Christopherofficer: Chief Financial OfficerSell724$48.46
Jun 12, 2026Ramos Danielofficer: See RemarksSell2,000$46.50
Jun 12, 2026Bradley Kevin Christopherofficer: Chief Financial OfficerSell2,200$46.15
Jun 12, 2026Ramos Danielofficer: See RemarksSell8,000$46.23
Jun 8, 2026Whall Timothy J.directorGrant3,222—
Jun 8, 2026Evans Stephen C.directorGrant3,222—
Jun 8, 2026WU SimonedirectorGrant3,222—
Jun 8, 2026NEVIN DARIUS GdirectorGrant3,222—
Jun 8, 2026McAdam Timothy PdirectorGrant3,222—
Jun 8, 2026Clarke Donald EdirectorGrant3,222—
Jun 8, 2026Harper Cecile BurleighdirectorGrant3,222—
May 28, 2026Ramos Danielofficer: See RemarksSell2,532$43.78
May 28, 2026Kerzner Danielofficer: See RemarksSell3,944$43.78
May 28, 2026Trundle Stephendirector, officer: Chief Executive OfficerSell6,073$43.78
May 20, 2026Trundle Stephendirector, officer: Chief Executive OfficerSell2,944$43.56
May 20, 2026Ramos Danielofficer: See RemarksSell1,561$43.56
May 20, 2026Kerzner Danielofficer: See RemarksSell1,915$43.56
Apr 10, 2026Bradley Kevin Christopherofficer: Chief Financial OfficerGrant35,000—
Apr 10, 2026Trundle Stephendirector, officer: Chief Executive OfficerGrant65,000—
Apr 10, 2026Kerzner Danielofficer: See RemarksGrant55,000—
Apr 10, 2026Ramos Danielofficer: See RemarksGrant25,000—
Mar 19, 2026NEVIN DARIUS GdirectorOption36,000$21.70
Mar 19, 2026NEVIN DARIUS GdirectorSell36,000$46.17
Mar 19, 2026Bradley Kevin Christopherofficer: Chief Financial OfficerSell1,510$45.97
Dec 18, 2025BEDELL JEFFREY Aofficer: See RemarksSell22,727$51.82
Dec 18, 2025BEDELL JEFFREY Aofficer: See RemarksOption22,727$15.02
Dec 16, 2025Evans Stephen C.directorSell1,154$52.27

Source: ALRM SEC Form 4 filings, latest Aug 25, 2026. For informational purposes only — not investment advice.

Institutional activity (13F)

How institutions changed their ALRM positions over the last 6 months (SEC Form 13F).

Increased
225
New positions
95
Reduced
219
Sold out
36
Largest moves
InstitutionActionSharesFiled
BlackRock, Inc.Increased9.5MAug 7, 2026
BLACKROCK, INC.Reduced9.1MMay 13, 2026
VANGUARD PORTFOLIO MANAGEMENT LLCIncreased4.0MAug 13, 2026
VANGUARD PORTFOLIO MANAGEMENT LLCNew Position4.0MMay 8, 2026
DISCIPLINED GROWTH INVESTORS INC /MNIncreased3.6MAug 14, 2026
BANK OF MONTREAL /CAN/Increased3.5MAug 12, 2026
DISCIPLINED GROWTH INVESTORS INC /MNReduced3.3MMay 15, 2026
BANK OF MONTREAL /CAN/Increased2.8MMay 13, 2026
STATE STREET CORPIncreased2.2MAug 7, 2026
VANGUARD CAPITAL MANAGEMENT LLCNew Position2.2MMay 15, 2026
VANGUARD CAPITAL MANAGEMENT LLCReduced2.1MAug 13, 2026
STATE STREET CORPIncreased2.0MMay 15, 2026
GEODE CAPITAL MANAGEMENT, LLCIncreased1.3MAug 12, 2026
MORGAN STANLEYReduced1.3MMay 15, 2026
DIMENSIONAL FUND ADVISORS LPIncreased1.3MAug 11, 2026

Source: SEC Form 13F filings. For informational purposes only — not investment advice.

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