Rambus's three largest insider shareholders as of March 23, 2026 are Luc Seraphin (President And Ceo, 331.07K shares), Xianzhi Sean Fan (Evp, Coo, 193.95K shares), Desmond Lynch (Svp, Cfo, 63.62K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Luc Seraphin | President And Ceo | 331,070 | 0 | 03 Mar, 2026 |
| Xianzhi Sean Fan | Evp, Coo | 193,954 | 0 | 03 Feb, 2026 |
| Desmond Lynch | Svp, Cfo | 63,618 | 0 | 24 Feb, 2026 |
| Emiko Higashi | 62,296 | 0 | 15 Aug, 2025 | |
| Keith A Jones | Principal Accounting Officer | 54,719 | 0 | 02 Mar, 2022 |
| Sanjay Saraf | 50,241 | 0 | 04 Apr, 2022 | |
| Charles Kissner | 38,322 | 0 | 03 Apr, 2025 | |
| Necip Sayiner | 30,824 | 0 | 12 Sep, 2025 | |
| Meera Rao | 29,261 | 0 | 02 Oct, 2025 | |
| Eric B Stang | 0 | 20,394 | 12 Nov, 2025 | |
| Charles Kissner | 0 | 18,747 | 11 May, 2022 | |
| John Shinn | Svp, General Counsel | 18,467 | 0 | 11 Mar, 2026 |
| Karen M Rogge | 17,364 | 0 | 04 Apr, 2023 | |
| John K Allen | Chief Accounting Officer | 16,090 | 0 | 03 Apr, 2025 |
| James A Mitarotonda | 13,946 | 0 | 04 Apr, 2022 | |
| Steven Laub | 6,796 | 0 | 02 Sep, 2025 | |
| Eric B Stang | 3,824 | 0 | 03 Apr, 2025 | |
| Victor Peng | 168 | 0 | 03 Mar, 2026 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 10 Mar, 2026 | John Shinn | Common Stock | D | 4,356 | $88.64 | 18,667 | D | S |
| 10 Mar, 2026 | John Shinn | Common Stock | D | 200 | $89.55 | 18,467 | D | S |
| 03 Mar, 2026 | John Shinn | Common Stock | D | 2,254 | $92.77 | 25,326 | D | S |
| 03 Mar, 2026 | John Shinn | Common Stock | D | 1,603 | $94.07 | 23,723 | D | S |
| 03 Mar, 2026 | John Shinn | Common Stock | D | 700 | $94.89 | 23,023 | D | S |
| 02 Mar, 2026 | Victor Peng | Common Stock | A | 168 | $0.00 | 168 | D | A |
| 02 Mar, 2026 | Luc Seraphin | Common Stock | D | 1,679 | $95.83 | 369,305 | D | S |
| 02 Mar, 2026 | Luc Seraphin | Common Stock | D | 7,225 | $97.38 | 362,080 | D | S |
| 02 Mar, 2026 | Luc Seraphin | Common Stock | D | 13,654 | $98.22 | 348,426 | D | S |
| 02 Mar, 2026 | Luc Seraphin | Common Stock | D | 9,469 | $99.17 | 338,957 | D | S |
| 02 Mar, 2026 | Luc Seraphin | Common Stock | D | 6,587 | $100.20 | 332,370 | D | S |
| 02 Mar, 2026 | Luc Seraphin | Common Stock | D | 1,300 | $101.65 | 331,070 | D | S |
| 23 Feb, 2026 | Desmond Lynch | Common Stock | D | 4,273 | $101.53 | 63,618 | D | S |
| 01 Feb, 2026 | Luc Seraphin | Common Stock | A | 143,744 | $0.00 | 463,507 | D | A |
| 01 Feb, 2026 | Xianzhi Sean Fan | Common Stock | A | 148,802 | $0.00 | 286,357 | D | A |
| 01 Feb, 2026 | John Shinn | Common Stock | A | 17,276 | $0.00 | 37,464 | D | A |
| 01 Feb, 2026 | Desmond Lynch | Common Stock | A | 34,554 | $0.00 | 89,996 | D | A |
| 01 Feb, 2026 | Luc Seraphin | Common Stock | D | 92,523 | $113.71 | 370,984 | D | F |
| 01 Feb, 2026 | John Shinn | Common Stock | D | 9,884 | $113.71 | 27,580 | D | F |
| 01 Feb, 2026 | Xianzhi Sean Fan | Common Stock | D | 92,403 | $113.71 | 193,954 | D | F |