Stephen Trundle
CIK 1643898 · Chief Executive Officer · last filed 2026-05-28
"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.
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Disclosed Exposure
$76.51M
Companies
1
Total Filings
56
Lifetime Open-Market Net
-$81.67M
Holdings By Company
Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
| 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 · Page 2 of 6
56 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2024-04-03 | ALRM | Mixed | −8,217 | -$225.2K | EDGAR |
| 2024-02-27 | ALRM | Sell (S) | −50,000 | -$3.69M | EDGAR |
| 2023-05-24 | ALRM | Grant (A) | +25,000 | $0 | EDGAR |
| 2023-05-18 | ALRM | Sell (S) | −4,694 | -$229.2K | EDGAR |
| 2023-04-05 | ALRM | Sell (S) | −4,787 | -$237.6K | EDGAR |
| 2022-05-17 | ALRM | Mixed | +22,608 | -$138.3K | EDGAR |
| 2022-04-06 | ALRM | Sell (S) | −5,305 | -$359.9K | EDGAR |
| 2021-12-08 | ALRM | Mixed | — | -$1.88M | EDGAR |
| 2021-11-29 | ALRM | Gift (G) | −289,450 | $0 | EDGAR |
| 2021-11-22 | ALRM | Sell (S) | −19,594 | -$1.64M | EDGAR |
Codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.