Trundle Stephen
Director · Officer · ALRM
As of 2026-09-16, Trundle Stephen has 20 Form 4 transactions on record across 1 company — 11 in the trailing 12 months.
Everything this person has disclosed to the SEC on Form 4 — across every company they file for — reconstructed from the public record. A filing history, not a tip sheet.
Pattern in the record: open-market sales filed in May in multiple years since 2025 — a recurring calendar cadence, more consistent with scheduled activity than a one-off decision.
Reconstructed holdings
Reconstructed from this person's own Form 4 filings — the total each filing reported owning afterward, priced at the close on the as-of date shown. A filed position can lag the real one.
Direct and indirect holdings (e.g. through a trust or fund) are tagged separately, as filed.
Trades by company
Filing ledger
| Date | Company | Action | Shares @ price | Value | Ownership Δ | Owned after | Filing |
|---|---|---|---|---|---|---|---|
| 2026-08-24 | ALRM | Sale | 50,000 @ $57.67 | $2.9M | −13.3% of holding | 324,842 | Form 4 |
| 2026-05-26 | ALRM | Sale | 6,073 @ $43.78 | $266K | −1.8% of holding | 324,842 | Form 4 |
| 2026-05-18 | ALRM | Sale | 2,944 @ $43.56 | $128K | −0.9% of holding | 330,915 | Form 4 |
| 2025-11-20 | ALRM | Purchase | 9,900 @ $48.06 | $476K | +0.8% of holding | 1,315,243 | Form 4 |
| 2025-11-20 | ALRM | Purchase | 100 @ $48.66 | $5K | +0.0% of holding | 1,315,343 | Form 4 |
| 2025-11-19 | ALRM | Purchase | 12,469 @ $48.53 | $605K | +1.0% of holding | 1,305,343 | Form 4 |
| 2025-11-18 | ALRM | Purchase | 3,531 @ $48.57 | $172K | +0.3% of holding | 1,292,874 | Form 4 |
| 2025-05-23 | ALRM | Sale | 3,644 @ $56.66 | $206K | −1.3% of holding | 268,859 | Form 4 |
| 2025-05-16 | ALRM | Sale | 3,626 @ $59.51 | $216K | −1.4% of holding | 247,503 | Form 4 |
| 2025-04-02 | ALRM | Sale | 1,553 @ $55.49 | $86K | −0.6% of holding | 251,129 | Form 4 |
| 2024-12-10 | ALRM | Sale | 45,501 @ $68.15 | $3.1M | −15.2% of holding | 254,681 | Form 4 |
| 2024-12-10 | ALRM | Sale | 1,999 @ $68.81 | $138K | −0.8% of holding | 252,682 | Form 4 |
8 award / exercise / gift records — not counted as purchases
| Date | Company | Action | Shares | Owned after | Filing |
|---|---|---|---|---|---|
| 2026-09-02 | ALRM | Gift | 2,000 | 322,842 | Form 4 |
| 2026-08-24 | ALRM | Option exercise | 50,000 | 374,842 | Form 4 |
| 2026-08-24 | ALRM | Option exercise | 50,000 | 0 | Form 4 |
| 2026-04-08 | ALRM | Award / grant | 65,000 | 333,859 | Form 4 |
| 2025-05-22 | ALRM | Award / grant | 40,000 | 40,000 | Form 4 |
| 2025-05-22 | ALRM | Award / grant | 25,000 | 272,503 | Form 4 |
| 2024-12-10 | ALRM | Option exercise | 47,500 | 300,182 | Form 4 |
| 2024-12-10 | ALRM | Option exercise | 47,500 | 0 | Form 4 |
Source: SEC Form 4 filings. Each row links to its original filing.
Research tool, not investment advice — historical frequencies, not recommendations. A product of Marovel Technologies LLC. Full terms.