Stephen Trundle insider trades: Alarm.com Holdings (ALRM) stock buys and sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Stephen reports to the SEC
Open-market buys and sales
53 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Aug 24, 2026 | ALRM | ↓ Sell | 50,000 | $57.67 | $2.9M | Direct | Aug 25, 2026 (1d) |
| May 26, 2026 | ALRM | ↓ Sell | 6,073 | $43.78 | $266K | Direct | May 28, 2026 (2d) |
| May 18, 2026 | ALRM | ↓ Sell | 2,944 | $43.56 | $128K | Direct | May 20, 2026 (2d) |
| Nov 20, 2025 | ALRM | ↑ Buy | 26,000 | $48.36 | $1.3M | By LLC | Nov 20, 2025 (0d) |
| May 23, 2025 | ALRM | ↓ Sell | 3,644 | $56.66 | $206K | Direct | May 27, 2025 (4d) |
| May 16, 2025 | ALRM | ↓ Sell | 3,626 | $59.51 | $216K | Direct | May 16, 2025 (0d) |
| Apr 2, 2025 | ALRM | ↓ Sell | 1,553 | $55.49 | $86K | Direct | Apr 4, 2025 (2d) |
| Dec 10, 2024 | ALRM | ↓ Sell | 47,500 | $68.18 | $3.2M | Direct | Dec 11, 2024 (1d) |
| Apr 2, 2024 | ALRM | ↓ Sell | 3,217 | $70.00 | $225K | Direct | Apr 3, 2024 (1d) |
| Feb 23, 2024 | ALRM | ↓ Sell | 50,000 | $73.80 | $3.7M | By LLC | Feb 27, 2024 (4d) |
| May 16, 2023 | ALRM | ↓ Sell | 4,694 | $48.82 | $229K | Direct | May 18, 2023 (2d) |
| Apr 3, 2023 | ALRM | ↓ Sell | 4,787 | $49.64 | $238K | Direct | Apr 5, 2023 (2d) |
| May 16, 2022 | ALRM | ↓ Sell | 2,392 | $57.80 | $138K | Direct | May 17, 2022 (1d) |
| Apr 4, 2022 | ALRM | ↓ Sell | 5,305 | $67.84 | $360K | Direct | Apr 6, 2022 (2d) |
| Dec 6, 2021 | ALRM | ↓ Sell | 25,000 | $79.11 | $2.0M | Direct | Dec 8, 2021 (2d) |
| Nov 22, 2021 | ALRM | ↓ Sell | 19,594 | $83.59 | $1.6M | By LLC | Nov 22, 2021 (0d) |
| Nov 17, 2021 | ALRM | ↓ Sell | 30,406 | $84.51 | $2.6M | By LLC | Nov 17, 2021 (0d) |
| Nov 15, 2021 | ALRM | ↓ Sell | 10,477 | $83.34 | $873K | Direct | Nov 17, 2021 (2d) |
| Nov 12, 2021 | ALRM | ↓ Sell | 22,875 | $85.71 | $2.0M | Direct | Nov 12, 2021 (0d) |
| Oct 11, 2021 | ALRM | ↓ Sell | 25,000 | $77.66 | $1.9M | Direct | Oct 13, 2021 (2d) |
| Aug 19, 2021 | ALRM | ↓ Sell | 25,000 | $77.24 | $1.9M | Direct | Aug 23, 2021 (4d) |
| Jun 7, 2021 | ALRM | ↓ Sell | 20,000 | $80.15 | $1.6M | By Gift Trust | Jun 8, 2021 (1d) |
| Jun 2, 2021 | ALRM | ↓ Sell | 40,279 | $81.89 | $3.3M | By LLC | Jun 2, 2021 (0d) |
| May 14, 2021 | ALRM | ↓ Sell | 14,087 | $82.29 | $1.2M | By LLC | May 18, 2021 (4d) |
| May 11, 2021 | ALRM | ↓ Sell | 45,634 | $85.23 | $3.9M | By LLC | May 11, 2021 (0d) |
| Apr 22, 2021 | ALRM | ↓ Sell | 20,000 | $90.23 | $1.8M | Direct | Apr 26, 2021 (4d) |
| Apr 5, 2021 | ALRM | ↓ Sell | 7,125 | $87.39 | $623K | Direct | Apr 7, 2021 (2d) |
| Jan 15, 2021 | ALRM | ↓ Sell | 15,000 | $98.79 | $1.5M | Direct | Jan 20, 2021 (5d) |
| Nov 18, 2020 | ALRM | ↓ Sell | 23,361 | $70.81 | $1.7M | By LLC | Nov 20, 2020 (2d) |
| Nov 17, 2020 | ALRM | ↓ Sell | 77,945 | $70.14 | $5.5M | By LLC | Nov 17, 2020 (0d) |
| Nov 12, 2020 | ALRM | ↓ Sell | 58,694 | $71.24 | $4.2M | By LLC | Nov 12, 2020 (0d) |
| Nov 9, 2020 | ALRM | ↓ Sell | 15,000 | $75.08 | $1.1M | Direct | Nov 12, 2020 (3d) |
| Aug 25, 2020 | ALRM | ↓ Sell | 25,000 | $58.85 | $1.5M | Direct | Aug 26, 2020 (1d) |
| Jul 28, 2020 | ALRM | ↓ Sell | 198,296 | $67.27 | $13.3M | By LLC | Jul 29, 2020 (1d) |
| Jul 28, 2020 | ALRM | ↓ Sell | 1,704 | $68.30 | $116K | By LLC | Jul 29, 2020 (1d) |
| Apr 8, 2020 | ALRM | ↓ Sell | 35,000 | $41.33 | $1.4M | Direct | Apr 10, 2020 (2d) |
| Apr 2, 2020 | ALRM | ↓ Sell | 4,752 | $37.12 | $176K | Direct | Apr 3, 2020 (1d) |
| Jan 13, 2020 | ALRM | ↓ Sell | 20,000 | $42.31 | $846K | Direct | Jan 15, 2020 (2d) |
| Nov 15, 2019 | ALRM | ↓ Sell | 15,000 | $44.76 | $671K | Direct | Nov 18, 2019 (3d) |
| Aug 19, 2019 | ALRM | ↓ Sell | 20,000 | $47.18 | $944K | Direct | Aug 21, 2019 (2d) |
| Apr 22, 2019 | ALRM | ↓ Sell | 20,000 | $67.63 | $1.4M | Direct | Apr 24, 2019 (2d) |
| Apr 8, 2019 | ALRM | ↓ Sell | 15,000 | $64.71 | $971K | Direct | Apr 10, 2019 (2d) |
| Apr 2, 2019 | ALRM | ↓ Sell | 2,271 | $64.63 | $147K | Direct | Apr 3, 2019 (1d) |
| Jan 16, 2019 | ALRM | ↓ Sell | 30,000 | $55.42 | $1.7M | Direct | Jan 16, 2019 (0d) |
| Dec 10, 2018 | ALRM | ↓ Sell | 10,000 | $49.68 | $497K | By Trust | Dec 12, 2018 (2d) |
| Nov 15, 2018 | ALRM | ↓ Sell | 15,000 | $47.59 | $714K | Direct | Nov 15, 2018 (0d) |
| Nov 14, 2018 | ALRM | ↓ Sell | 30,000 | $47.67 | $1.4M | By LLC | Nov 15, 2018 (1d) |
| Aug 15, 2018 | ALRM | ↓ Sell | 15,000 | $50.77 | $762K | Direct | Aug 17, 2018 (2d) |
| Jun 18, 2018 | ALRM | ↓ Sell | 22,193 | $45.52 | $1.0M | Direct | Jun 19, 2018 (1d) |
| Mar 16, 2018 | ALRM | ↓ Sell | 25,000 | $39.11 | $978K | Direct | Mar 19, 2018 (3d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other ALRM insiders
Open-market trades in the last 12 months
About Stephen Trundle's insider trades
Stephen Trundle is Chief Executive Officer at Alarm.com Holdings (ALRM). Since Aug 31, 2017, Stephen has reported 1 open-market purchase worth $1.3M and 52 sales worth $85.8M on SEC Form 4. In the last 12 months: 1 buy ($1.3M) and 3 sales ($3.3M).
Their filings also include option exercises (22 filings), grants and awards (11 filings), gifts (8 filings), shares withheld for taxes (2 filings). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every ALRM insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.