Mika Nishimura
CIK 1848327 · last filed 2026-06-08
Mika Nishimura is a corporate insider who has filed 15 SEC Form 4 insider transactions across 2 companies since 2021. The most recent filing, for SIBN, was dated Jun 8, 2026. Across all open-market trades the lifetime net is −$97.3K, making them a net seller over the disclosed history. Current disclosed insider exposure totals $746.0K 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.
$746.0K
2
15
-$97.3K
Holdings By Company
Recent Filings
15 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-06-08 | SIBN | Grant (A) | +10,957 | $0 | EDGAR |
| 2026-03-13 | SIBN | Sell (S) | −4,100 | -$56.7K | EDGAR |
| 2025-12-02 | ARAY | Grant (A) | — | $0 | EDGAR |
| 2025-11-25 | ARAY | Exer (M) | +56,603 | $0 | EDGAR |
| 2025-06-06 | SIBN | Grant (A) | +8,675 | $0 | EDGAR |
| 2024-12-03 | ARAY | Grant (A) | — | $0 | EDGAR |
| 2024-06-27 | SIBN | Grant (A) | +8,791 | $0 | EDGAR |
| 2024-03-14 | SIBN | Sell (S) | −2,500 | -$40.5K | EDGAR |
| 2023-12-04 | ARAY | Grant (A) | +56,603 | $0 | EDGAR |
| 2023-06-13 | SIBN | Grant (A) | +4,866 | $0 | EDGAR |