FAN XIANZHI SEAN (CIK 1583840) reported 11 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-04-03). Recent activity: Buy RMBS (22,234 shares), Sell RMBS (9,916 shares), Buy RMBS (148,802 shares), Sell RMBS (92,403 shares), Sell RMBS (300 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-04-03 | RAMBUS INC (RMBS) | EVP, COO | Buy | 22,234 | $0 |
| 2026-04-03 | RAMBUS INC (RMBS) | EVP, COO | Sell | 9,916 | $891,944 |
| 2026-02-03 | RAMBUS INC (RMBS) | EVP, COO | Buy | 148,802 | $0 |
| 2026-02-03 | RAMBUS INC (RMBS) | EVP, COO | Sell | 92,403 | $10.5M |
| 2025-11-21 | RAMBUS INC (RMBS) | EVP, COO | Sell | 300 | $0 |
| 2025-11-20 | RAMBUS INC (RMBS) | EVP, COO | Sell | 300 | $0 |
| 2025-04-03 | RAMBUS INC (RMBS) | EVP, COO | Buy | 47,810 | $0 |
| 2025-04-03 | RAMBUS INC (RMBS) | EVP, COO | Sell | 3,496 | $182,806 |
| 2025-02-19 | RAMBUS INC (RMBS) | EVP, COO | Sell | 52,327 | $3.6M |
| 2025-02-04 | RAMBUS INC (RMBS) | EVP, COO | Buy | 112,675 | $0 |
| 2025-02-04 | RAMBUS INC (RMBS) | EVP, COO | Sell | 78,078 | $4.7M |
Source: SEC Form 4 filings · as of 2026-04-03