DAVID BRIAN MILLER
CIK 1233488 · last filed 2026-05-22
DAVID BRIAN MILLER is a corporate insider who has filed 22 SEC Form 4 insider transactions across 3 companies since 2007. The most recent filing, for ONTO, was dated May 22, 2026. Across all open-market trades the lifetime net is −$1.6M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $3.3M 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.
$3.25M
3
22
-$1.64M
Holdings By Company
Recent Filings
22 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-05-22 | ONTO | Grant (A) | +761 | $0 | EDGAR |
| 2025-05-23 | ONTO | Grant (A) | +2,114 | $0 | EDGAR |
| 2024-05-23 | ONTO | Grant (A) | +809 | $0 | EDGAR |
| 2024-02-13 | ONTO | Notice (144) | −2,800 | -$477.4K | EDGAR |
| 2024-02-13 | ONTO | Sell (S) | −2,800 | -$477.4K | EDGAR |
| 2023-05-25 | ONTO | Sell (S) | −5,000 | -$498.5K | EDGAR |
| 2023-05-23 | ONTO | Notice (144) | −5,000 | -$499.9K | EDGAR |
| 2023-05-11 | ONTO | Grant (A) | +2,200 | $0 | EDGAR |
| 2022-05-12 | ONTO | Grant (A) | +2,100 | $0 | EDGAR |
| 2021-12-09 | ONTO | Sell (S) | −5,500 | -$535.8K | EDGAR |
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.