Darin G Billerbeck
CIK 1388177 · Executive Chairman · last filed 2026-05-22
Darin G Billerbeck is an Executive Chairman who has filed 102 SEC Form 4 insider transactions across 3 companies since 2007. The most recent filing, for MRAM, was dated May 22, 2026. Across all open-market trades the lifetime net is −$2.4M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $110.6M 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.
$110.57M
3
102
-$2.43M
Holdings By Company
Recent Filings
102 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-05-22 | MRAM | Grant (A) | +3,852 | $0 | EDGAR |
| 2026-05-13 | MRAM | Mixed | — | -$859.2K | EDGAR |
| 2025-11-12 | MRAM | Mixed | — | -$26.6K | EDGAR |
| 2025-05-27 | MRAM | Grant (A) | +20,325 | $0 | EDGAR |
| 2024-07-26 | MRAM | Grant (A) | +20,973 | $0 | EDGAR |
| 2023-12-11 | MRAM | Sell (S) | −10,000 | -$87.3K | EDGAR |
| 2023-09-20 | MRAM | Sell (S) | −10,000 | -$96.3K | EDGAR |
| 2023-08-16 | MRAM | Mixed | — | -$11.1K | EDGAR |
| 2023-05-24 | MRAM | Grant (A) | +16,578 | $0 | EDGAR |
| 2023-03-09 | MRAM | Sell (S) | −10,000 | -$66.7K | EDGAR |