Rambus's three largest insider shareholders as of August 04, 2026 are Luc Seraphin (President And Ceo, 345.77K shares), Xianzhi Sean Fan (Evp, Coo, 206.27K shares), Emiko Higashi (Director, 64.52K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Luc Seraphin | President And Ceo | 345,767 | 0 | 345,767 | 36.5% | 03 Apr, 2026 |
| 2 | Xianzhi Sean Fan | Evp, Coo | 206,272 | 0 | 206,272 | 21.8% | 03 Apr, 2026 |
| 3 | Emiko Higashi | Director | 64,519 | 0 | 64,519 | 6.8% | 03 Apr, 2026 |
| 4 | Desmond Lynch | Svp, Cfo | 63,618 | 0 | 63,618 | 6.7% | 24 Feb, 2026 |
| 5 | Keith A Jones | Principal Accounting Officer | 54,719 | 0 | 54,719 | 5.8% | 02 Mar, 2022 |
| 6 | Sanjay Saraf | Director | 50,241 | 0 | 50,241 | 5.3% | 04 Apr, 2022 |
| 7 | Charles Kissner | Director | 40,545 | 0 | 40,545 | 4.3% | 03 Apr, 2026 |
| 8 | Necip Sayiner | Director | 33,047 | 0 | 33,047 | 3.5% | 03 Apr, 2026 |
| 9 | Meera Rao | Director | 22,946 | 0 | 22,946 | 2.4% | 15 Apr, 2026 |
| 10 | John Shinn | Svp, General Counsel | 22,112 | 0 | 22,112 | 2.3% | 03 Apr, 2026 |
| 11 | John K Allen | Chief Accounting Officer | 17,131 | 0 | 17,131 | 1.8% | 07 Apr, 2026 |
| 12 | James A Mitarotonda | Director | 13,946 | 0 | 13,946 | 1.5% | 04 Apr, 2022 |
| 13 | Steven Laub | Director | 9,019 | 0 | 9,019 | 1.0% | 03 Apr, 2026 |
| 14 | Victor Peng | Director | 2,391 | 0 | 2,391 | 0.3% | 03 Apr, 2026 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 14 Apr, 2026 | Meera Rao | Director | Disposed S | 8,538 | $118.08 | $1.01Mn | 22,946 | Direct |
| 14 Apr, 2026 | Meera Rao | Director | Disposed S | 8,538 | $118.08 | $1.01Mn | 22,946 | Direct |
| 14 Apr, 2026 | Meera Rao | Director | Disposed S | 8,538 | $118.08 | $1.01Mn | 22,946 | Direct |
| 03 Apr, 2026 | John K Allen | Chief Accounting Officer | Disposed F | 1,131 | $92.22 | $104.30K | 17,131 | Direct |
| 01 Apr, 2026 | Meera Rao | Director | Acquired A | 2,223 | $0.00 | $0 | 31,484 | Direct |
| 01 Apr, 2026 | John K Allen | Chief Accounting Officer | Acquired A | 2,779 | $0.00 | $0 | 19,415 | Direct |
| 01 Apr, 2026 | Xianzhi Sean Fan | Evp, Coo | Acquired A | 22,234 | $0.00 | $0 | 216,188 | Direct |
| 01 Apr, 2026 | John Shinn | Svp, General Counsel | Acquired A | 5,558 | $0.00 | $0 | 24,025 | Direct |
| 01 Apr, 2026 | Meera Rao | Director | Acquired A | 2,223 | $0.00 | $0 | 31,484 | Direct |
| 01 Apr, 2026 | John Shinn | Svp, General Counsel | Acquired A | 5,558 | $0.00 | $0 | 24,025 | Direct |
| 01 Apr, 2026 | Meera Rao | Director | Acquired A | 2,223 | $0.00 | $0 | 31,484 | Direct |
| 01 Apr, 2026 | Meera Rao | Director | Acquired A | 2,223 | $0.00 | $0 | 31,484 | Direct |
| 01 Apr, 2026 | Emiko Higashi | Director | Acquired A | 2,223 | $0.00 | $0 | 64,519 | Direct |
| 01 Apr, 2026 | John Shinn | Svp, General Counsel | Acquired A | 5,558 | $0.00 | $0 | 24,025 | Direct |
| 01 Apr, 2026 | Luc Seraphin | President And Ceo | Acquired A | 32,684 | $0.00 | $0 | 363,754 | Direct |
| 01 Apr, 2026 | Luc Seraphin | President And Ceo | Acquired A | 32,684 | $0.00 | $0 | 363,754 | Direct |
| 01 Apr, 2026 | Luc Seraphin | President And Ceo | Acquired A | 32,684 | $0.00 | $0 | 363,754 | Direct |
| 01 Apr, 2026 | Luc Seraphin | President And Ceo | Acquired A | 32,684 | $0.00 | $0 | 363,754 | Direct |
| 01 Apr, 2026 | John Shinn | Svp, General Counsel | Acquired A | 5,558 | $0.00 | $0 | 24,025 | Direct |
| 01 Apr, 2026 | Victor Peng | Director | Acquired A | 2,223 | $0.00 | $0 | 2,391 | Direct |