Stephen Trundle
CIK 1643898 · Chief Executive Officer · last filed 2026-05-28
Stephen Trundle is a Chief Executive Officer who has filed 56 SEC Form 4 insider transactions across 1 company since 2015. The most recent filing shows the insider sold $265.9K of ALRM on May 28, 2026. Across all open-market trades the lifetime net is −$81.7M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $76.5M across reported positions.
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
$76.51M
1
56
-$81.67M
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| ALRM | Chief Executive Officer | 1,640,185 | $46.65 | $76.51M | -$81.67M | 56 | 2026-05-28 |
Recent Filings
56 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-05-28 | ALRM | Sell (S) | −6,073 | -$265.9K | EDGAR |
| 2026-05-20 | ALRM | Sell (S) | −2,944 | -$128.2K | EDGAR |
| 2026-04-10 | ALRM | Grant (A) | +65,000 | $0 | EDGAR |
| 2025-11-20 | ALRM | Buy (P) | +26,000 | $1.26M | EDGAR |
| 2025-05-27 | ALRM | Mixed | +21,356 | -$206.5K | EDGAR |
| 2025-05-16 | ALRM | Sell (S) | −3,626 | -$215.8K | EDGAR |
| 2025-04-04 | ALRM | Sell (S) | −1,553 | -$86.2K | EDGAR |
| 2024-12-11 | ALRM | Mixed | — | -$2.21M | EDGAR |
| 2024-05-24 | ALRM | Mixed | +22,745 | -$151.1K | EDGAR |
| 2024-05-17 | ALRM | Tax (F) | −4,512 | -$316.1K | EDGAR |