Koyama Takeshi (CIK 2123519) reported 2 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-06-03). Recent activity: Buy MFG (1,048 shares), Sell MFG (420 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-06-03 | MIZUHO FINANCIAL GROUP INC (MFG) | Group Chief Strategy Officer | Buy | 1,048 | $0 |
| 2026-06-03 | MIZUHO FINANCIAL GROUP INC (MFG) | Group Chief Strategy Officer | Sell | 420 | $0 |
Source: SEC Form 4 filings · as of 2026-06-03