By CapitalSnitch Research Desk · updated Oct 11, 2026 · data from SEC filings and official Congress disclosures
Over 12 months, Alarm.com Holdings, Inc. saw more selling than buying from its insiders — purchases of about $1.3 million against sales of $9.2 million.
The largest purchase came from Trundle Stephen (CEO), about $605,000. Notably, at least one C-suite executive was among the buyers.
314 investment managers listed ALRM in their latest 13F filings (Q2 2026); more funds bought than sold. Looking at the quarterly pattern: 7 quarters in a row of net selling by insiders. Insiders bought in 1 of the last 7 full quarters.
Are insiders buying or selling ALRM stock?
In the last 12 months Alarm.com Holdings, Inc. insiders made open-market purchases worth about $1.3 million and sales worth about $9.2 million. Data comes from SEC Form 4 filings, updated every 30 minutes on CapitalSnitch.
When was the last insider trade in ALRM?
The most recent open-market insider trade in ALRM was filed on 2026-08-25.
How many institutions own ALRM?
314 investment managers reported holding ALRM in SEC Form 13F filings for Q2 2026.
Has any member of Congress traded ALRM?
No congressional trades in ALRM were reported in the past two years. The full list is free on CapitalSnitch.
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Public-record data for research and education, not investment advice. Insider sales are often pre-planned (10b5-1).
Congress data: Data derived from public disclosures filed under the Ethics in Government Act and the STOCK Act, republished free for public transparency and news reporting. Disclosures may lag the trade by 45 days or more and show amounts only as ranges. This data may not be used for credit rating, loan underwriting, solicitation of money (political, charitable or other), direct-mail or commercial targeting (5 U.S.C. 13107).