Higashi Emiko (CIK 1318086) reported 6 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-06-03). Recent activity: Sell RMBS (5,000 shares), Sell RMBS (5,000 shares), Buy RMBS (2,223 shares), Sell RMBS (1,075 shares), Sell RMBS (1,111 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-06-03 | RAMBUS INC (RMBS) | Director | Sell | 5,000 | $815,000 |
| 2026-06-03 | RAMBUS INC (RMBS) | Director | Sell | 5,000 | $790,000 |
| 2026-04-03 | RAMBUS INC (RMBS) | Director | Buy | 2,223 | $0 |
| 2025-08-15 | RAMBUS INC (RMBS) | Director | Sell | 1,075 | $83,581 |
| 2025-08-06 | RAMBUS INC (RMBS) | Director | Sell | 1,111 | $83,325 |
| 2025-04-03 | RAMBUS INC (RMBS) | Director | Buy | 3,824 | $0 |
Source: SEC Form 4 filings · as of 2026-06-03