Stocks › ALRM
Alarm.com Holdings, Inc.
ALRM·Nasdaq·
United States·USD
United States·USD$56.11
-0.13 (-0.23%)
Close · Oct 6, 2026 · Close Prices from Tiingo.com
ALRM
Alarm.com Holdings, Inc. · Nasdaq
Nasdaq 100S&P 500
Filings
Default90D1Y5YALL
ALRMS&P 500 (rebased)
Congress BuyCongress SellInsider BuyInsider SellForm 1448-K ResultsLobbying
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Daily closes, adjusted for splits and dividends · Close Prices from Tiingo.comHover a marker, every one is a filing · move across the line for the crosshair
Congressional Trades
Recent trades of ALRM by members of U.S. Congress · 2 on record
| Politician | Stock | Type | Filed | Traded | |
|---|---|---|---|---|---|
 Greg GianforteHouse · R · MT |
ALRMAlarm.com Holdings, Inc. · Stock |
Purchase $100,001 - $250,000 |
Jul 29, 2019 | Jul 22, 2019 | Filing ↗ |
 James B. RenacciHouse · R · OH |
ALRMAlarm.com Holdings, Inc. · Common Stock |
Purchase $15,001 - $50,000 |
Jun 22, 2017 | Jun 6, 2017 | Filing ↗ |
Whale Activity
Position changes in ALRM reported for 2026-06-30 by 11 tracked institutional filers
- Increased4
- New0
- Held0
- Decreased5
- Closed0
- No prior filing2
| Filer | Shares | Value | Change |
|---|---|---|---|
| BlackRock, Inc. | 9.5M | $443.5M | increased |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 4.0M | $188.5M | increased |
| VANGUARD CAPITAL MANAGEMENT LLC | 2.1M | $100.0M | decreased |
| TWO SIGMA INVESTMENTS, LP | 676.6K | $31.6M | decreased |
| D. E. Shaw & Co., Inc. | 223.4K | $10.4M | decreased |
| MILLENNIUM MANAGEMENT LLC | 191.9K | $9.0M | increased |
| BlackRock, Inc. | 9.4M | $8.9M | increased |
| Point72 Asset Management, L.P. | 73.7K | $3.4M | decreased |
| CITADEL ADVISORS LLC | 57.0K | $2.7M | decreased |
| Argos Wealth Advisors, LLC | 18.2K | $849K | — |
| CENTAURUS FINANCIAL, INC. | 264.0K | $12K | — |
KeyVex tracks a curated set of large 13F filers plus the largest positions in recent filings, so this is a sample of institutional activity, not the whole market.
Insider Trading
Net shares bought (+) or sold (−) on the open market by ALRM insiders, by quarter · Form 4
Recent Insider Transactions
986 transactions on record · newest first
| Insider | Type | Shares | Price | Value | Date | |
|---|---|---|---|---|---|---|
| Trundle StephenChief Executive Officer · Director | Sale | −50.0K | $57.67 | $2.9M | Aug 24, 2026 | Form 4 ↗ |
| Bradley Kevin ChristopherChief Financial Officer | Sale | −5,400 | $55.07 | $297K | Aug 12, 2026 | Form 4 ↗ |
| Bradley Kevin ChristopherChief Financial Officer | Sale | −724 | $48.46 | $35K | Jul 2, 2026 | Form 4 ↗ |
| Ramos DanielSee Remarks | Sale | −2,000 | $46.50 | $93K | Jun 12, 2026 | Form 4 ↗ |
| Ramos DanielSee Remarks | Sale | −8,000 | $46.23 | $370K | Jun 10, 2026 | Form 4 ↗ |
| Bradley Kevin ChristopherChief Financial Officer | Sale | −2,200 | $46.15 | $102K | Jun 10, 2026 | Form 4 ↗ |
| Whall Timothy J.Director | Grant / award | +3,222 | $0.00 | $0 | Jun 4, 2026 | Form 4 ↗ |
| NEVIN DARIUS GDirector | Grant / award | +3,222 | $0.00 | $0 | Jun 4, 2026 | Form 4 ↗ |
| Clarke Donald EDirector | Grant / award | +3,222 | $0.00 | $0 | Jun 4, 2026 | Form 4 ↗ |
| McAdam Timothy PDirector | Grant / award | +3,222 | $0.00 | $0 | Jun 4, 2026 | Form 4 ↗ |
| WU SimoneDirector | Grant / award | +3,222 | $0.00 | $0 | Jun 4, 2026 | Form 4 ↗ |
| Harper Cecile BurleighDirector | Grant / award | +3,222 | $0.00 | $0 | Jun 4, 2026 | Form 4 ↗ |
| Evans Stephen C.Director | Grant / award | +3,222 | $0.00 | $0 | Jun 4, 2026 | Form 4 ↗ |
| Trundle StephenChief Executive Officer · Director | Sale | −6,073 | $43.78 | $266K | May 26, 2026 | Form 4 ↗ |
| Ramos DanielSee Remarks | Sale | −2,532 | $43.78 | $111K | May 26, 2026 | Form 4 ↗ |
| Kerzner DanielSee Remarks | Sale | −3,944 | $43.78 | $173K | May 26, 2026 | Form 4 ↗ |
| Kerzner DanielSee Remarks | Sale | −1,915 | $43.56 | $83K | May 18, 2026 | Form 4 ↗ |
| Ramos DanielSee Remarks | Sale | −1,561 | $43.56 | $68K | May 18, 2026 | Form 4 ↗ |
| Trundle StephenChief Executive Officer · Director | Sale | −2,944 | $43.56 | $128K | May 18, 2026 | Form 4 ↗ |
| Trundle StephenChief Executive Officer · Director | Grant / award | +65.0K | $0.00 | $0 | Apr 8, 2026 | Form 4 ↗ |
Fund Holders
Mutual funds and ETFs holding ALRM · SEC Form N-PORT
| Fund | Shares | Value | % of fund | As of |
|---|---|---|---|---|
| iShares Core S&P Small-Cap ETF iShares Trust | 3.0M | $139.0M | 0.12% | Jun 30, 2026 |
| VANGUARD TOTAL STOCK MARKET INDEX FUND VANGUARD INDEX FUNDS | 1.5M | $69.7M | 0.00% | Jun 30, 2026 |
| iShares Russell 2000 ETF iShares Trust | 1.2M | $56.9M | 0.07% | Jun 30, 2026 |
| VANGUARD INFORMATION TECHNOLOGY INDEX FUND VANGUARD WORLD FUND | 1.2M | $53.6M | 0.03% | May 31, 2026 |
| VANGUARD SMALL-CAP INDEX FUND VANGUARD INDEX FUNDS | 1.1M | $50.3M | 0.03% | Jun 30, 2026 |
| iShares Cybersecurity and Tech ETF iShares Trust | 681.4K | $37.3M | 3.67% | Jul 31, 2026 |
| VANGUARD SMALL-CAP GROWTH INDEX FUND VANGUARD INDEX FUNDS | 623.7K | $29.1M | 0.06% | Jun 30, 2026 |
| Fidelity Small Cap Index Fund Fidelity Salem Street Trust | 522.6K | $28.6M | 0.08% | Jul 31, 2026 |
| VANGUARD EXTENDED MARKET INDEX FUND VANGUARD INDEX FUNDS | 566.3K | $26.5M | 0.03% | Jun 30, 2026 |
| Avantis U.S. Small Cap Value ETF American Century ETF Trust | 525.6K | $23.7M | 0.09% | May 31, 2026 |
Mutual funds and ETFs whose N-PORT filings list ALRM's shares (CUSIP 011642105), each fund at its latest report since Mar 7, 2026, largest positions first. Bonds, options and short positions are left out.
Activist & Passive Stakes
Schedule 13D / 13G beneficial-ownership filings
- DISCIPLINED GROWTH INVESTORS INC /MNSCHEDULE 13G/A · passive (13G) · 3.6M shares7.3%
Aug 14, 2026 · ↗ - Burgundy Asset Management, Inc.SCHEDULE 13G/A · passive (13G) · 3.1M shares6.3%
Aug 12, 2026 · ↗ - 1001271606 ONTARIO INCSCHEDULE 13G/A · passive (13G) · 3.1M shares6.3%
Aug 12, 2026 · ↗ - BMO FAMILY OFFICE, LLCSCHEDULE 13G/A · passive (13G) · 609 shares0.0%
Aug 12, 2026 · ↗ - BMO BANK N.A.SCHEDULE 13G/A · passive (13G) · 1,273 shares0.0%
Aug 12, 2026 · ↗ - BMO FINANCIAL CORP.SCHEDULE 13G/A · passive (13G) · 1,882 shares0.0%
Aug 12, 2026 · ↗ - BMO ASSET MANAGEMENT INC.SCHEDULE 13G/A · passive (13G) · 3,392 shares0.0%
Aug 12, 2026 · ↗ - BMO NESBITT BURNS INC.SCHEDULE 13G/A · passive (13G) · 3,409 shares0.0%
Aug 12, 2026 · ↗ - BANK OF MONTREAL HOLDING INC.SCHEDULE 13G/A · passive (13G) · 3,409 shares0.0%
Aug 12, 2026 · ↗ - Bank of MontrealSCHEDULE 13G/A · passive (13G) · 3.5M shares7.0%
Aug 12, 2026 · ↗
Corporate Lobbying
Estimated quarterly lobbying spending reported under the LDA, filings naming alarm com as client
- MEHLMAN CONSULTING, INC.ALARM.COM · 2026 Q2$10K
Filing ↗ - MEHLMAN CONSULTING, INC.ALARM.COM · 2026 Q1 · CPI, CSP—
Filing ↗ - MEHLMAN CONSULTING, INC.ALARM.COM · 2025 Q4 · CPI, CSP$50K
Filing ↗ - MEHLMAN CONSULTING, INC.ALARM.COM · 2025 Q3 · CPI, TAX, CSP$50K
Filing ↗ - MEHLMAN CONSULTING, INC.ALARM.COM · 2025 Q2 · CPI, TAX$50K
Filing ↗
Government Contracts
Federal awards to Alarm.com Holdings, Inc. · USAspending
No federal contract awards found for Alarm.com Holdings, Inc..
U.S. Patents
Recent USPTO applications naming Alarm.com Holdings, Inc.
No USPTO patent applications found for Alarm.com Holdings, Inc..
Annual Financials
From ALRM's 10-K filings · XBRL
No annual XBRL figures on record for ALRM. KeyVex's fundamentals cover about 130 large companies so far.
Stock Splits
Every split and reverse split in the price history
No stock splits in ALRM's price history.
About Alarm.com Holdings, Inc.
From SEC EDGAR company records
Industry (SIC 7372)Services-Prepackaged Software
SectorTechnology
HeadquartersTYSONS, VA
IncorporatedDE
SEC CIK0001459200 ↗