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 4 of 6
56 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2021-01-20 | ALRM | Mixed | — | -$1.42M | EDGAR |
| 2020-11-20 | ALRM | Sell (S) | −23,361 | -$1.65M | EDGAR |
| 2020-11-17 | ALRM | Sell (S) | −77,945 | -$5.47M | EDGAR |
| 2020-11-12 | ALRM | Mixed | −58,694 | -$5.25M | EDGAR |
| 2020-08-26 | ALRM | Mixed | — | -$1.37M | EDGAR |
| 2020-07-29 | ALRM | Sell (S) | −200,000 | -$13.45M | EDGAR |
| 2020-04-10 | ALRM | Mixed | — | -$1.31M | EDGAR |
| 2020-04-03 | ALRM | Mixed | +10,248 | -$176.4K | EDGAR |
| 2020-01-15 | ALRM | Mixed | — | -$766.2K | EDGAR |
| 2019-11-18 | ALRM | Mixed | — | -$611.4K | 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.