Quick Takeaways
- ALRM - Alarm.com Holdings, Inc. has 13 insiders with reported activity on this page.
- Net insider value flow over the last year: -$5,394,764.
- Recent transaction rows are available for direct filing-level review.
- Info
- Insider Trading
- Financials
- Holders
Insider Transactions Reported by 13 Insiders of Alarm.com Holdings, Inc.
- Symbol
- ALRM on Nasdaq
- Location
- Tysons, VA
What Changed
- Buy value: $1,257,281; sell value: $6,652,044.
- Net share flow: <span class="text-red-600">-102,835</span>.
Why This Matters
- This page gives a plain-language issuer insider context before you inspect transaction-level evidence.
- Use the filing links below to verify timestamps, codes, and ownership impacts directly from SEC forms.
Official SEC Source
Insider trading overview
Last 12 monthsNet insider flow leans to selling over the last 12 months. Net value: -$5,394,764.
Buys
$1,257,281
Shares: 26,000
Insiders: 1
Sells
$6,652,045
Shares: 128,835
Insiders: 7
Net
-$5,394,764
Shares: -102,835
Insiders: -6
| Window (months) | Buy shares | Sell shares | Buy $ | Sell $ | Net $ |
|---|---|---|---|---|---|
| 0-3 | 0 | 37,510 | $0 | $1,731,535 | +$1,731,535 |
| 3-6 | 26,000 | 56,158 | $1,257,281 | $2,866,689 | +$4,123,970 |
| 6-9 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 0 | 35,167 | $0 | $2,053,821 | +$2,053,821 |
Alarm.com Holdings, Inc. executives and other stock owners filed with the SEC include:
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Stephen Trundle | Chief Executive Officer, Director | $90,435,037 | +$835,029 | +0.93% | Mixed | 18 Nov 2025 |
| Jeffrey A. Bedell | President, Ventures Business and Corporate Strategy | $26,210,815 | -$1,542,098 | -5.6% | Filing P/S | 16 Dec 2025 |
| Timothy P. McAdam | Director | $4,939,239 | Mixed | 25 Nov 2025 | ||
| Daniel Kerzner | President, Platforms Business | $2,617,160 | -$1,754,840 | -40% | Filing P/S | 12 Nov 2025 |
| Daniel Ramos | Chief Legal and Compliance Officer; Senior Vice President, Corporate Operations | $2,433,634 | -$1,015,362 | -29% | Filing P/S | 22 May 2025 |
| Kevin Christopher Bradley | Chief Financial Officer | $2,369,569 | -$135,413 | -5.4% | Filing P/S | 18 Mar 2026 |
| Steve Valenzuela | Chief Financial Officer | $2,191,875 | Filing P/S | 12 Mar 2025 | ||
| Donald E. Clarke | Director | $1,917,120 | Mixed | 05 Jun 2025 | ||
| Darius G. Nevin | Director | $1,247,118 | -$1,662,120 | -57% | Mixed | 18 Mar 2026 |
| Simone Wu | Director | $757,601 | Mixed | 05 Jun 2025 | ||
| Timothy J. Whall | Director | $670,584 | Mixed | 05 Jun 2025 | ||
| Stephen C. Evans | Director | $320,049 | -$119,960 | -27% | Filing P/S | 12 Dec 2025 |
| Cecile Burleigh Harper | Director | $288,695 | Mixed | 05 Jun 2025 |
Top shareholders of Alarm.com Holdings, Inc. (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.
Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
| Holder | Source | Role / Reporting | Ownership % | Shares | Holdings Value | 12M Net Δ | As of | Details |
|---|---|---|---|---|---|---|---|---|
| BlackRock, Inc. |
13F
13D/G
|
Company |
17%
from 13D/G
|
9,251,293
|
$472,000,970 | — | 31 Dec 2025 | |
| VANGUARD GROUP INC |
13F
|
Company |
13%
|
6,286,541
|
$320,739,323 | — | 31 Dec 2025 | |
| DISCIPLINED GROWTH INVESTORS INC /MN |
13D/G
13F
|
Company |
6.9%
|
3,417,517
|
$174,361,717 | +$4,358,230 | 31 Dec 2025 | |
| BROWN CAPITAL MANAGEMENT LLC |
13D/G
13F
|
Company |
4.8%
|
2,392,630
|
$128,556,010 | $0 | 31 Dec 2024 | |
| BANK OF MONTREAL /CAN/ |
13F
|
Company |
4.5%
|
2,231,227
|
$113,837,202 | — | 31 Dec 2025 | |
| STATE STREET CORP |
13F
|
Company |
4.1%
|
2,022,220
|
$103,173,664 | — | 31 Dec 2025 | |
| Stephen Trundle |
3/4/5
|
Chief Executive Officer, Director |
—
mixed-class rows
|
1,893,751
mixed-class rows
|
$90,435,037 | +$835,029 | 18 Nov 2025 | |
| MORGAN STANLEY |
13F
|
Company |
2.7%
|
1,338,254
|
$68,277,775 | — | 31 Dec 2025 | |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
|
Company |
2.5%
|
1,219,732
|
$62,239,134 | — | 31 Dec 2025 | |
| GENEVA CAPITAL MANAGEMENT LLC |
13F
|
Company |
2.3%
|
1,154,353
|
$58,895,071 | — | 31 Dec 2025 | |
| DIMENSIONAL FUND ADVISORS LP |
13F
|
Company |
2.2%
|
1,105,735
|
$56,417,254 | — | 31 Dec 2025 | |
| PRICE T ROWE ASSOCIATES INC /MD/ |
13F
|
Company |
1.8%
|
895,619
|
$45,695,000 | — | 31 Dec 2025 | |
| FMR LLC |
13F
|
Company |
1.6%
|
803,854
|
$41,012,628 | — | 31 Dec 2025 | |
| RIVERBRIDGE PARTNERS LLC |
13F
|
Company |
1.5%
|
723,361
|
$36,905,889 | — | 31 Dec 2025 | |
| NORTHERN TRUST CORP |
13F
|
Company |
1.3%
|
643,910
|
$32,852,289 | — | 31 Dec 2025 | |
| BNP PARIBAS FINANCIAL MARKETS |
13F
|
Company |
1.2%
|
602,050
|
$30,716,591 | — | 31 Dec 2025 | |
| GOLDMAN SACHS GROUP INC |
13F
|
Company |
1.2%
|
590,268
|
$30,115,474 | — | 31 Dec 2025 | |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC |
13F
|
Company |
1.1%
|
568,857
|
$29,023,084 | — | 31 Dec 2025 | |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP |
13F
|
Company |
1.1%
|
541,567
|
$27,630,748 | — | 31 Dec 2025 | |
| Jeffrey A. Bedell |
3/4/5
|
President, Ventures Business and Corporate Strategy |
1%
|
505,805
|
$26,210,815 | -$1,542,098 | 16 Dec 2025 | |
| ALGERT GLOBAL LLC |
13F
|
Company |
0.89%
|
438,429
|
$22,369,000 | — | 31 Dec 2025 | |
| DEUTSCHE BANK AG\ |
13F
|
Company |
0.84%
|
416,942
|
$21,272,380 | — | 31 Dec 2025 | |
| DF DENT & CO INC |
13F
|
Company |
0.83%
|
410,231
|
$20,929,991 | — | 31 Dec 2025 | |
| Qube Research & Technologies Ltd |
13F
|
Company |
0.78%
|
385,957
|
$19,691,526 | — | 31 Dec 2025 | |
| BANK OF AMERICA CORP /DE/ |
13F
|
Company |
0.72%
|
356,476
|
$18,187,406 | — | 31 Dec 2025 | |
| LAZARD ASSET MANAGEMENT LLC |
13F
|
Company |
0.7%
|
347,611
|
$17,735,113 | — | 31 Dec 2025 | |
| WELLS FARGO & COMPANY/MN |
13F
|
Company |
0.7%
|
345,961
|
$17,650,914 | — | 31 Dec 2025 | |
| Select Equity Group, L.P. |
13F
|
Company |
0.69%
|
344,031
|
$17,552,462 | — | 31 Dec 2025 | |
| Nuveen, LLC |
13F
|
Company |
0.64%
|
316,427
|
$16,144,105 | — | 31 Dec 2025 | |
| TWO SIGMA INVESTMENTS, LP |
13F
|
Company |
0.63%
|
309,634
|
$15,797,527 | — | 31 Dec 2025 | |
| Bank of New York Mellon Corp |
13F
|
Company |
0.6%
|
294,808
|
$15,041,121 | — | 31 Dec 2025 | |
| PUBLIC SECTOR PENSION INVESTMENT BOARD |
13F
|
Company |
0.59%
|
291,808
|
$14,888,044 | — | 31 Dec 2025 | |
| NOMURA HOLDINGS INC |
13F
|
Company |
0.58%
|
288,178
|
$14,702,842 | — | 31 Dec 2025 | |
| PRINCIPAL FINANCIAL GROUP INC |
13F
|
Company |
0.58%
|
285,237
|
$14,552,792 | — | 31 Dec 2025 | |
| D. E. Shaw & Co., Inc. |
13F
|
Company |
0.57%
|
280,400
|
$14,306,008 | — | 31 Dec 2025 | |
| Connor, Clark & Lunn Investment Management Ltd. |
13F
|
Company |
0.57%
|
280,017
|
$14,286,467 | — | 31 Dec 2025 | |
| Handelsbanken Fonder AB |
13F
|
Company |
0.55%
|
272,200
|
$13,888,000 | — | 31 Dec 2025 | |
| CENTAURUS FINANCIAL, INC. |
13F
|
Company |
0.54%
|
269,059
|
$13,727,000 | — | 31 Dec 2025 | |
| SG Americas Securities, LLC |
13F
|
Company |
0.53%
|
260,923
|
$13,312,000 | — | 31 Dec 2025 | |
| Invesco Ltd. |
13F
|
Company |
0.49%
|
243,828
|
$12,440,104 | — | 31 Dec 2025 | |
| MILLENNIUM MANAGEMENT LLC |
13F
|
Company |
0.47%
|
234,759
|
$11,977,404 | — | 31 Dec 2025 | |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC |
13F
|
Company |
0.44%
|
219,380
|
$11,192,768 | — | 31 Dec 2025 | |
| TUDOR INVESTMENT CORP ET AL |
13F
|
Company |
0.44%
|
217,584
|
$11,101,136 | — | 31 Dec 2025 | |
| Summit Creek Advisors LLC |
13F
|
Company |
0.44%
|
215,766
|
$11,008,381 | — | 31 Dec 2025 | |
| ACADIAN ASSET MANAGEMENT LLC |
13F
|
Company |
0.41%
|
204,256
|
$10,409,000 | — | 31 Dec 2025 | |
| Evanson Asset Management, LLC |
13F
|
Company |
0.34%
|
168,914
|
$8,617,992 | — | 31 Dec 2025 | |
| Montanaro Asset Management Ltd |
13F
|
Company |
0.3%
|
150,100
|
$7,658,102 | — | 31 Dec 2025 | |
| JACOBS LEVY EQUITY MANAGEMENT, INC |
13F
|
Company |
0.3%
|
147,879
|
$7,544,787 | — | 31 Dec 2025 | |
| Trexquant Investment LP |
13F
|
Company |
0.29%
|
143,419
|
$7,317,237 | — | 31 Dec 2025 | |
| MERCER GLOBAL ADVISORS INC /ADV |
13F
|
Company |
0.28%
|
139,920
|
$7,138,718 | — | 31 Dec 2025 |
Recent Insider Transactions by Companies or Individuals for Alarm.com Holdings, Inc.
Showing up to 300 most recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | Value $ | * Price $ | Shares | Shares Owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Kevin Christopher Bradley | ALRM | Common Stock | Sale | -2.85% | $69,415 | $45.97 | -1,510 | 51,546 | 18 Mar 2026 | Direct |
| Darius G. Nevin | ALRM | Common Stock | Sale | -59.6% | $1,662,120 | $46.17 | -36,000 | 24,375 | 18 Mar 2026 | Direct |
| Darius G. Nevin | ALRM | Common Stock | Options Exercise | 147.7% | 36,000 | 60,375 | 18 Mar 2026 | Direct | ||
| Darius G. Nevin | ALRM | Stock Option (Right to Buy) | Options Exercise | -100% | -36,000 | 0 | 18 Mar 2026 | Direct | ||
| Jeffrey A. Bedell | ALRM | Common Stock | Sale | -4.3% | $1,177,713 | $51.82 | -22,727 | 505,805 | 16 Dec 2025 | Direct |
| Jeffrey A. Bedell | ALRM | Common Stock | Options Exercise | 4.49% | 22,727 | 528,532 | 16 Dec 2025 | Direct | ||
| Jeffrey A. Bedell | ALRM | Employee Stock Option (Right to Buy) | Options Exercise | -100% | -22,727 | 0 | 16 Dec 2025 | Direct | ||
| Jeffrey A. Bedell | ALRM | Common Stock | Sale | -0.45% | $119,355 | $52.51 | -2,273 | 505,805 | 12 Dec 2025 | Direct |
| Jeffrey A. Bedell | ALRM | Common Stock | Options Exercise | 0.45% | 2,273 | 508,078 | 12 Dec 2025 | Direct | ||
| Jeffrey A. Bedell | ALRM | Employee Stock Option (Right to Buy) | Options Exercise | -9.09% | -2,273 | 22,727 | 12 Dec 2025 | Direct | ||
| Stephen C. Evans | ALRM | Common Stock | Sale | -15.9% | $60,320 | $52.27 | -1,154 | 6,123 | 12 Dec 2025 | Direct |
| Timothy P. McAdam | ALRM | Common Stock | Gift | -6.5% | -7,000 | 100,616 | 25 Nov 2025 | Direct | ||
| Stephen Trundle | ALRM | Common Stock | Purchase | 0.77% | $480,660 | $48.07 | 10,000 | 1,315,343 | 20 Nov 2025 | By LLC |
| Stephen Trundle | ALRM | Common Stock | Purchase | 0.96% | $605,121 | $48.53 | 12,469 | 1,305,343 | 19 Nov 2025 | By LLC |
| Stephen Trundle | ALRM | Common Stock | Purchase | 0.27% | $171,501 | $48.57 | 3,531 | 1,292,874 | 18 Nov 2025 | By LLC |
| Daniel Kerzner | ALRM | Common Stock | Sale | -16.1% | $503,300 | $50.33 | -10,000 | 52,000 | 13 Nov 2025 | Direct |
| Daniel Kerzner | ALRM | Common Stock | Options Exercise | 19.2% | 10,000 | 62,000 | 13 Nov 2025 | Direct | ||
| Daniel Kerzner | ALRM | Stock Option (Right to Buy) | Options Exercise | -100% | -10,000 | 0 | 13 Nov 2025 | Direct | ||
| Daniel Kerzner | ALRM | Common Stock | Sale | -27.8% | $1,006,001 | $50.29 | -20,004 | 52,000 | 12 Nov 2025 | Direct |
| Kevin Christopher Bradley | ALRM | Common Stock | Sale | -1.4% | $42,790 | $56.75 | -754 | 53,056 | 02 Jul 2025 | Direct |
| Stephen C. Evans | ALRM | Common Stock | Sale | -12.1% | $59,640 | $59.64 | -1,000 | 7,277 | 11 Jun 2025 | Direct |
| Timothy P. McAdam | ALRM | Common Stock | Award | 2.39% | 2,510 | 107,616 | 05 Jun 2025 | Direct | ||
| Stephen C. Evans | ALRM | Common Stock | Award | 43.5% | 2,510 | 8,277 | 05 Jun 2025 | Direct | ||
| Darius G. Nevin | ALRM | Common Stock | Award | 11.5% | 2,510 | 24,375 | 05 Jun 2025 | Direct | ||
| Timothy J. Whall | ALRM | Common Stock | Award | 28.9% | 2,510 | 11,182 | 05 Jun 2025 | Direct | ||
| Donald E. Clarke | ALRM | Common Stock | Award | 20.2% | 2,510 | 14,953 | 05 Jun 2025 | Direct | ||
| Simone Wu | ALRM | Common Stock | Award | 24.8% | 2,510 | 12,633 | 05 Jun 2025 | Direct | ||
| Cecile Burleigh Harper | ALRM | Common Stock | Award | 108.9% | 2,510 | 4,814 | 05 Jun 2025 | Direct | ||
| Daniel Ramos | ALRM | Common Stock | Sale | -14.2% | $403,760 | $57.68 | -7,000 | 42,192 | 27 May 2025 | Direct |
| Daniel Ramos | ALRM | Common Stock | Sale | -3.46% | $99,835 | $56.66 | -1,762 | 49,192 | 23 May 2025 | Direct |
| Jeffrey A. Bedell | ALRM | Common Stock | Sale | -0.43% | $124,879 | $56.66 | -2,204 | 505,805 | 23 May 2025 | Direct |
| Daniel Kerzner | ALRM | Common Stock | Sale | -2.98% | $125,389 | $56.66 | -2,213 | 72,004 | 23 May 2025 | Direct |
| Stephen Trundle | ALRM | Common Stock | Sale | -1.34% | $206,469 | $56.66 | -3,644 | 268,859 | 23 May 2025 | Direct |
| Daniel Ramos | ALRM | Common Stock | Award | 37.9% | 14,000 | 50,954 | 22 May 2025 | Direct | ||
| Daniel Ramos | ALRM | Employee Stock Option (Right to Buy) | Award | 14,000 | 14,000 | 22 May 2025 | Direct | |||
| Jeffrey A. Bedell | ALRM | Common Stock | Award | 3.57% | 17,500 | 508,009 | 22 May 2025 | Direct | ||
| Jeffrey A. Bedell | ALRM | Employee Stock Option (Right to Buy) | Award | 22,500 | 22,500 | 22 May 2025 | Direct | |||
| Daniel Kerzner | ALRM | Common Stock | Award | 30.8% | 17,500 | 74,217 | 22 May 2025 | Direct | ||
| Daniel Kerzner | ALRM | Employee Stock Option (Right to Buy) | Award | 22,500 | 22,500 | 22 May 2025 | Direct | |||
| Stephen Trundle | ALRM | Common Stock | Award | 10.1% | 25,000 | 272,503 | 22 May 2025 | Direct | ||
| Stephen Trundle | ALRM | Employee Stock Option (Right to Buy) | Award | 40,000 | 40,000 | 22 May 2025 | Direct | |||
| Daniel Ramos | ALRM | Common Stock | Sale | -4.26% | $97,953 | $59.51 | -1,646 | 36,954 | 16 May 2025 | Direct |
| Daniel Kerzner | ALRM | Common Stock | Sale | -3.44% | $120,151 | $59.51 | -2,019 | 56,717 | 16 May 2025 | Direct |
| Kevin Christopher Bradley | ALRM | Common Stock | Sale | -0.72% | $23,209 | $59.51 | -390 | 53,810 | 16 May 2025 | Direct |
| Jeffrey A. Bedell | ALRM | Common Stock | Sale | -0.41% | $120,151 | $59.51 | -2,019 | 490,509 | 16 May 2025 | Direct |
| Stephen Trundle | ALRM | Common Stock | Sale | -1.44% | $215,783 | $59.51 | -3,626 | 247,503 | 16 May 2025 | Direct |
| Daniel Ramos | ALRM | Common Stock | Sale | -15.2% | $413,813 | $60.06 | -6,890 | 38,600 | 14 May 2025 | Direct |
| Daniel Ramos | ALRM | Common Stock | Options Exercise | 12.8% | 5,167 | 45,490 | 14 May 2025 | Direct | ||
| Daniel Ramos | ALRM | Employee Stock Option (Right to Buy) | Options Exercise | -100% | -5,167 | 0 | 14 May 2025 | Direct |
* An asterisk sign (*) next to the price indicates that the price is likely invalid.