MICHAEL K KOBAYASHI
CIK 1311099 · PRES., CHIEF CAPABILITY OFC'R · last filed 2026-06-02
MICHAEL K KOBAYASHI is a PRES., CHIEF CAPABILITY OFC'R who has filed 24 SEC Form 4 insider transactions across 2 companies since 2019. The most recent filing, for GO, was dated Jun 2, 2026. Across all open-market trades the lifetime net is −$8.8M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $17.4M 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.
$17.45M
2
24
-$8.79M
Holdings By Company
Recent Filings
24 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-06-02 | GO | Grant (A) | +18,868 | $0 | EDGAR |
| 2025-06-27 | GO | Grant (A) | +11,839 | $150.0K | EDGAR |
| 2025-03-25 | ROST | Mixed | +126 | -$1.19M | EDGAR |
| 2024-04-01 | ROST | Sell (S) | −13,860 | -$2.04M | EDGAR |
| 2024-03-26 | ROST | Mixed | +4,104 | -$2.07M | EDGAR |
| 2023-10-10 | ROST | Sell (S) | −20,749 | -$2.32M | EDGAR |
| 2023-09-19 | ROST | Tax (F) | −4,324 | -$511.0K | EDGAR |
| 2023-04-10 | ROST | Sell (S) | −12,221 | -$1.30M | EDGAR |
| 2023-03-21 | ROST | Tax (F) | −9,134 | -$932.2K | EDGAR |
| 2022-09-20 | ROST | Tax (F) | −2,883 | -$260.2K | EDGAR |