RMBS (Rambus Inc)
Insider Trading Activity
Every open-market purchase and sale reported by RMBS officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-10 | CHARLES KISSNER | Director | Sell | — | — |
| 2026-06-03 | Emiko Higashi | Director | Sell | — | — |
| 2026-06-03 | Necip Sayiner | Director | Sell | — | — |
| 2026-06-02 | ERIC B STANG | Director | Sell | — | — |
| 2026-05-27 | Emiko Higashi | Director | Sell | — | — |
| 2026-05-26 | John Shinn | SVP, General Counsel | Sell | — | — |
| 2026-05-26 | XIANZHI SEAN FAN | EVP, COO | Sell | — | — |
| 2026-05-11 | STEVEN LAUB | Director | Sell | — | — |
| 2026-05-11 | Necip Sayiner | Director | Sell | — | — |
| 2026-05-04 | Sumeet Gagneja | SVP, CFO | A | — | — |
| 2026-04-27 | Meera Rao | Director | Sell | — | — |
| 2026-04-15 | Meera Rao | Director | Sell | — | — |
| 2026-04-07 | John K Allen | Chief Accounting Officer | F | — | — |
| 2026-04-03 | John K Allen | Chief Accounting Officer | MIXED | — | — |
| 2026-04-03 | XIANZHI SEAN FAN | EVP, COO | MIXED | — | — |
| 2026-04-03 | Luc Seraphin | President and CEO | MIXED | — | — |
| 2026-04-03 | John Shinn | SVP, General Counsel | MIXED | — | — |
| 2026-04-03 | CHARLES KISSNER | Director | A | — | — |
| 2026-04-03 | VICTOR PENG | Director | A | — | — |
| 2026-04-03 | ERIC B STANG | Director | A | — | — |
| 2026-04-03 | Necip Sayiner | Director | A | — | — |
| 2026-04-03 | Meera Rao | Director | A | — | — |
| 2026-04-03 | STEVEN LAUB | Director | A | — | — |
| 2026-04-03 | Emiko Higashi | Director | A | — | — |
| 2026-03-11 | John Shinn | SVP, General Counsel | Sell | — | — |
| 2026-03-04 | John Shinn | SVP, General Counsel | Sell | — | — |
| 2026-03-03 | VICTOR PENG | Director | A | — | — |
| 2026-03-03 | Luc Seraphin | President and CEO | Sell | — | — |
| 2026-02-24 | Desmond Lynch | SVP, CFO | Sell | — | — |
| 2026-02-03 | XIANZHI SEAN FAN | EVP, COO | MIXED | — | — |
| 2026-02-03 | Luc Seraphin | President and CEO | MIXED | — | — |
| 2026-02-03 | Desmond Lynch | SVP, CFO | MIXED | — | — |
| 2026-02-03 | John Shinn | SVP, General Counsel | MIXED | — | — |
| 2025-11-21 | XIANZHI SEAN FAN | EVP, COO | G | — | — |
| 2025-11-20 | XIANZHI SEAN FAN | EVP, COO | G | — | — |
| 2025-11-12 | ERIC B STANG | Director | Sell | — | — |
| 2025-10-06 | Desmond Lynch | SVP, CFO | Sell | — | — |
| 2025-10-02 | Meera Rao | Director | Sell | — | — |
| 2025-09-16 | Desmond Lynch | SVP, CFO | Sell | — | — |
| 2025-09-12 | Necip Sayiner | Director | Sell | — | — |
| 2025-09-04 | Meera Rao | Director | Sell | — | — |
| 2025-09-03 | Desmond Lynch | SVP, CFO | F | — | — |
| 2025-09-02 | STEVEN LAUB | Director | Sell | — | — |
| 2025-08-15 | Emiko Higashi | Director | Sell | — | — |
| 2025-08-11 | Necip Sayiner | Director | Sell | — | — |
| 2025-08-06 | Emiko Higashi | Director | Sell | — | — |
| 2025-08-05 | John Shinn | SVP, General Counsel | Sell | — | — |
| 2025-05-28 | STEVEN LAUB | Director | Sell | — | — |
| 2025-05-20 | STEVEN LAUB | Director | Sell | — | — |
| 2025-05-12 | ERIC B STANG | Director | Sell | — | — |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| — | Director | 2,394,849 | — |
| — | President & CEO | 976,371 | — |
| — | Director | 791,584 | — |
| — | Director | 567,821 | — |
| — | Director | 544,046 | — |
| — | CEO | 432,114 | — |
| — | President and CEO | 363,754 | — |
| — | SVP, CFO | 242,447 | — |
| — | SVP, GM ESD | 239,988 | — |
| — | EVP, COO | 168,458 | — |
| — | SVP Finance, CFO | 162,632 | — |
| — | Director | 151,928 | — |
| — | SVP, GC & Secretary | 129,279 | — |
| — | Director | 102,526 | — |
| — | Senior VP, Engineering | 88,006 | — |
| — | SVP, GM MID | 80,584 | — |
| — | SVP, GM SBG | 69,358 | — |
| — | Director | 66,613 | — |
| — | SVP, GM NBG | 66,455 | — |
| — | SVP, CFO | 63,618 | — |
| — | Director | 60,611 | — |
| — | Director | 55,833 | — |
| — | Principal Accounting Officer | 54,719 | — |
| — | Director | 54,519 | — |
| — | Director | 54,292 | — |
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the RMBS quote page; the site-wide leaderboard is on the insider transactions hub.