Stock Trading Canary

United States · SEC Form 4 · Snapshot date: 2026-10-18 · Built: 2026-10-18 · 中文

← United States · Coverage record

US · SEC FORM 4

Alarm.com Holdings, Inc.

ALRM · Nasdaq · CIK 0001459200 · Technology · Software—Application

INSIDER SIGNAL

No active buy signal

0 qualifying P purchase groups
in the current 180-day scoring window

21 Form 4 transaction lines observed in the same window
12 sales · 9 option, withholding, award, gift or other lines

Last qualifying purchase2025-11-20 · Trundle Stephen · $480.7K

WHY NO ACTIVE SIGNAL?

Purchase activityNone
Recent buyingNone
Recent salesModerate
Buy signal statusInactive
Score anatomy

No score is calculated because there is no qualifying purchase in the active window. Unavailable inputs are not treated as zero or as a bearish signal.

ClusterNot calculated
Purchase sizeNot calculated
RoleNot calculated
RecencyNot calculated
ConvictionNot calculated

Why is there no score?

  • No qualifying open-market purchase supplies cluster, size, role, recency or conviction inputs.
  • Sales and other Form 4 activity remain visible as context and do not create a negative score.

Sales and other Form 4 activity are shown separately and do not create a negative buy signal. Absence of buying is not scored as bearish.

Insider activity timeline

Owner lanes show the latest 180 days. Symbol shape identifies the transaction type; sales remain context only.

AprMayJunJulAugSepOct
Trundle StephenChief Executive Officer
▼▼○▼○
Ramos DanielSee Remarks
▼▼▼▼
Bradley Kevin ChristopherChief Financial Officer
▼▼▼
Kerzner DanielSee Remarks
▼▼
Whall Timothy J.Director
○
WU SimoneDirector
○
● Purchase▼ Sale○ Other

Showing the six most active owners; 5 additional owner(s) remain in Form 4 evidence.

Purchase breadth, concentration & cluster buying

These modules activate when qualifying purchases enter the 180-day research window.

SIGNAL HISTORY

No recorded active-signal snapshot

Scores are archived only when the company qualifies for a published US buy-signal snapshot. Last qualifying purchase: 2025-11-20 · Trundle Stephen.

Recent Form 4 activity

4Purchases
19Sales
18Other Form 4 lines
31SEC filings · 365 days
BUYING0 qualifying P line(s) · 180 days
SELLING12 sale line(s) · context only
OTHER9 exercise / withholding / award / gift / other lines
10b5-1 / PLANNEDNot assessed

P is an open-market or private purchase. S is a sale. M, F, A and G usually describe exercises, tax withholding, awards and gifts. These categories remain visually separate.

Market context

Market context provides additional background on recent price performance and risk. It does not affect the Insider Signal.

Price performance

1M
-2.5%
3M
+10.5%
6M
+26.2%
12M
—

Volatility & liquidity

Volatility
30.3%
Beta
—
Avg daily value
—

Valuation

Market cap
—
P/E
—

Fundamentals

Profit margin
13.0%
ROE
15.5%
Industry
Software—Application

Market data

Price data up to: 2026-10-02 · Price source: OpenBB/yfinance · From SEC filings: Profit margin, ROE · Fiscal year ended: 2025-12-31 · Status: PASS

Short interest

Short interest is external context reported to FINRA by broker-dealers. It does not affect the Insider Signal.

Shares short
3,047,905
Previous report
2,955,286
Avg daily volume
516,082
Days to cover
5.9

FINRA settlement date: 2026-09-30 · Captured 2026-10-12 · FINRA equity short interest ↗. A share count, published about a week after each of two settlement dates a month; not a percentage of shares outstanding.

Historical equity purchases

Qualifying code P transactions in the local Form 4 history, including purchases outside the current signal window.

Transaction dateReporting ownerTypeSecuritySharesAvg. priceApprox. valueSource
2025-11-20Trundle StephenPurchase (P)Common Stock10,000USD 48.07USD 480,660SEC filing ↗
2025-11-19Trundle StephenPurchase (P)Common Stock12,469USD 48.53USD 605,121SEC filing ↗
2025-11-18Trundle StephenPurchase (P)Common Stock3,531USD 48.57USD 171,501SEC filing ↗

Form 4 evidence

41 transaction lines in the latest 365-day window; 527 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-09-02Trundle StephenGift (G)Common Stock2,000USD 0.00USD 0SEC filing ↗
2026-08-24Trundle StephenSale (S)Common Stock50,000USD 57.67USD 2,883,500SEC filing ↗
2026-08-24Trundle StephenOption exercise / conversion (M)Common Stock50,000USD 32.17USD 1,608,500SEC filing ↗
Show recent Form 4 evidence (30 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-09-02Trundle StephenGift (G)Common Stock2,000USD 0.00USD 0SEC filing ↗
2026-08-24Trundle StephenSale (S)Common Stock50,000USD 57.67USD 2,883,500SEC filing ↗
2026-08-24Trundle StephenOption exercise / conversion (M)Common Stock50,000USD 32.17USD 1,608,500SEC filing ↗
2026-08-12Bradley Kevin ChristopherSale (S)Common Stock5,400USD 55.07USD 297,378SEC filing ↗
2026-07-02Bradley Kevin ChristopherSale (S)Common Stock724USD 48.46USD 35,085SEC filing ↗
2026-06-12Ramos DanielSale (S)Common Stock2,000USD 46.50USD 93,000SEC filing ↗
2026-06-10Ramos DanielSale (S)Common Stock8,000USD 46.23USD 369,840SEC filing ↗
2026-06-10Bradley Kevin ChristopherSale (S)Common Stock2,200USD 46.15USD 101,530SEC filing ↗
2026-06-04Whall Timothy J.Award / grant (A)Common Stock3,222USD 0.00USD 0SEC filing ↗
2026-06-04WU SimoneAward / grant (A)Common Stock3,222USD 0.00USD 0SEC filing ↗
2026-06-04NEVIN DARIUS GAward / grant (A)Common Stock3,222USD 0.00USD 0SEC filing ↗
2026-06-04McAdam Timothy PAward / grant (A)Common Stock3,222USD 0.00USD 0SEC filing ↗
2026-06-04Harper Cecile BurleighAward / grant (A)Common Stock3,222USD 0.00USD 0SEC filing ↗
2026-06-04Evans Stephen C.Award / grant (A)Common Stock3,222USD 0.00USD 0SEC filing ↗
2026-06-04Clarke Donald EAward / grant (A)Common Stock3,222USD 0.00USD 0SEC filing ↗
2026-05-26Trundle StephenSale (S)Common Stock6,073USD 43.78USD 265,876SEC filing ↗
2026-05-26Ramos DanielSale (S)Common Stock2,532USD 43.78USD 110,851SEC filing ↗
2026-05-26Kerzner DanielSale (S)Common Stock3,944USD 43.78USD 172,668SEC filing ↗
2026-05-18Trundle StephenSale (S)Common Stock2,944USD 43.56USD 128,241SEC filing ↗
2026-05-18Ramos DanielSale (S)Common Stock1,561USD 43.56USD 67,997SEC filing ↗
2026-05-18Kerzner DanielSale (S)Common Stock1,915USD 43.56USD 83,417SEC filing ↗
2026-04-08Trundle StephenAward / grant (A)Common Stock65,000USD 0.00USD 0SEC filing ↗
2026-04-08Ramos DanielAward / grant (A)Common Stock25,000USD 0.00USD 0SEC filing ↗
2026-04-08Kerzner DanielAward / grant (A)Common Stock55,000USD 0.00USD 0SEC filing ↗
2026-04-08Bradley Kevin ChristopherAward / grant (A)Common Stock35,000USD 0.00USD 0SEC filing ↗
2026-03-18NEVIN DARIUS GSale (S)Common Stock36,000USD 46.17USD 1,662,120SEC filing ↗
2026-03-18NEVIN DARIUS GOption exercise / conversion (M)Common Stock36,000USD 21.70USD 781,200SEC filing ↗
2026-03-18Bradley Kevin ChristopherSale (S)Common Stock1,510USD 45.97USD 69,415SEC filing ↗
2025-12-16BEDELL JEFFREY ASale (S)Common Stock22,727USD 51.82USD 1,177,713SEC filing ↗
2025-12-16BEDELL JEFFREY AOption exercise / conversion (M)Common Stock22,727USD 15.02USD 341,360SEC filing ↗

Multiple price lines in one filing are grouped and share-weighted. Price and value are blank when a grouped filing line lacks price evidence.

Snapshot & identity

Snapshot date2026-10-18
Ranking versionUS-v1.2
Data qualityPASS ELIGIBLE · —
TickerALRM
CIK0001459200
SectorTechnology
IndustrySoftware—Application Yahoo Finance
SEC SIC7372 Services-Prepackaged Software
ExchangeNasdaq

Data coverage

Local Form 4 history527 transaction lines from 2020-01-13 to 2026-09-02
4 P purchase lines · 276 S sale lines · 247 other lines
SEC company submissionsOpen SEC filings ↗

Local ledger as of 2026-10-18. Mapping status is an audit field and does not erase SEC filing evidence.