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ALRM — structural market context

Alarm.com Holdings, Inc.

Structural market context from public regulatory and market data, shown with its as-of dates. Descriptive only: nothing on this page is a recommendation, a prediction, or advice to buy or sell any security.

What changed

As of the close on Oct 21. Each line shows the earlier value, the later value and their dates.

Price

Close $59.54 (Oct 21) vs $58.68 (Oct 20): +1.47%.

Volume

0.95× its 20-session average (443K) on Oct 21.

Includes pre- and post-market trading.

Short interest

Short interest 3.0M shares (settlement Sep 30) vs 3.0M (Sep 15).

No new publication in this window. Latest: settlement Sep 30, published Oct 10.

Fails-to-deliver

Latest file (settlements Sep 15–Sep 30, published Oct 16): no fails listed.

Previous file (settlements Sep 1–Sep 14, published Sep 30): 3 days with fails, largest 6K shares on Sep 10.

No new publication in this window.

Insider filings (Form 4)

None recorded in this window.

ALRM short interest & days to cover

SHARES SHORT
3.0M
% OF FLOAT
6.5%
DAYS TO COVER
5.9
CHANGE VS PRIOR
+3.1%

FINRA consolidated short interest, reported twice a month and published ~2 weeks after each settlement date. % of float uses reported free float. · as of 2026-09-30 (22d ago)

ALRM fails-to-deliver (FTD)

Settlement dateFailed sharesPrice
2026-09-10 · 42d6K$54.99
2026-09-08 · 44d93$56.48
2026-09-04 · 48d24$56.73

SEC fails-to-deliver files, published twice a month with ~6 weeks of delay.

ALRM insider buying and selling (Form 4)

Last 12 months, Form 4 codes P and S: 0 purchases · 2 sales

InsiderTypeSharesValueFiled
Trundle Stephen · director, officer: Chief Executive OfficerSale (S)50K$2.9M2026-08-25
Bradley Kevin Christopher · officer: Chief Financial OfficerSale (S)5K$297K2026-08-14

SEC Form 4 filings: purchases and sales reported on Form 4 (transaction codes P and S) only; grants and option exercises excluded. Attributed public records.

Frequently asked questions

What is ALRM's short interest?
As of the FINRA settlement date 2026-09-30, ALRM had 3.0M shares sold short — 6.5% of its float, with 5.9 days to cover at average volume. FINRA publishes this data roughly two weeks after each twice-monthly settlement, so it is inherently delayed. A short-interest figure describes an aggregate position; it does not predict what the stock will do.
Are insiders buying ALRM?
In the last 12 months of SEC Form 4 filings, ALRM recorded 0 insider purchases and 2 sales reported on Form 4 (transaction codes P and S; grants and option exercises excluded). These are attributed public records — information, not instruction.
Is this page telling me to buy or sell ALRM?
No. Everything on this page is descriptive, structural market context from public data, shown with its as-of dates. TradeAI News does not issue directional recommendations, price predictions, or buy/sell advice — for any ticker.
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ALRM: the full history

Latest rows shown. Full history, market-wide screens, cluster detection and the context journal live in the dashboard.

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Not financial advice. Trading involves risk. Descriptive structural context, never a recommendation.