Over the 90-day window ending December 12, 2025, Rambus's three dominant insider ownership positions are held by EVP And COO Xianzhi Sean Fan (137.56K shares), SVP And Cfo Desmond Lynch (55.36K shares), Director Meera Rao (29.26K shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| Luc Seraphin | President And CEO | 319,241 | 24 Apr, 2025 |
| Rahul Mathur | SVP And Cfo | 242,447 | 04 Feb, 2021 |
| Xianzhi Sean Fan | EVP And COO | 137,555 | 21 Nov, 2025 |
| Jae Kim | SVP And GC & Secretary | 129,279 | 04 Feb, 2021 |
| Charles Kissner | 86,743 | 03 Apr, 2025 | |
| Emiko Higashi | 62,296 | 15 Aug, 2025 | |
| Desmond Lynch | SVP And Cfo | 55,356 | 06 Oct, 2025 |
| Keith A Jones | Principal Accounting Officer | 54,719 | 02 Mar, 2022 |
| Sanjay Saraf | 50,241 | 04 Apr, 2022 | |
| Necip Sayiner | 30,824 | 12 Sep, 2025 | |
| Meera Rao | 29,261 | 02 Oct, 2025 | |
| Eric B Stang | 24,218 | 03 Apr, 2025 | |
| John Shinn | SVP And General Counsel | 20,188 | 05 Aug, 2025 |
| Karen M Rogge | 17,364 | 04 Apr, 2023 | |
| John K Allen | Chief Accounting Officer | 16,090 | 03 Apr, 2025 |
| James A Mitarotonda | 13,946 | 04 Apr, 2022 | |
| Steven Laub | 6,796 | 02 Sep, 2025 |
* 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 |
|---|---|---|---|---|---|---|---|---|
| 21 Nov, 2025 | Xianzhi Sean Fan | Common Stock | D | 300 | $0.00 | 137,555 | D | G |
| 19 Nov, 2025 | Xianzhi Sean Fan | Common Stock | D | 300 | $0.00 | 137,855 | D | G |
| 07 Nov, 2025 | Eric B Stang | Common Stock | D | 5,000 | $102.35 | 24,394 | I | S |
| 10 Nov, 2025 | Eric B Stang | Common Stock | D | 4,000 | $111.78 | 20,394 | I | S |
| 06 Oct, 2025 | Desmond Lynch | Common Stock | D | 5,467 | $101.17 | 58,963 | D | S |
| 06 Oct, 2025 | Desmond Lynch | Common Stock | D | 3,607 | $101.99 | 55,356 | D | S |
| 01 Oct, 2025 | Meera Rao | Common Stock | D | 653 | $101.99 | 29,261 | D | S |
| 15 Sep, 2025 | Desmond Lynch | Common Stock | D | 9,074 | $91.70 | 64,430 | D | S |
| 11 Sep, 2025 | Necip Sayiner | Common Stock | D | 7,500 | $85.63 | 30,824 | D | S |
| 02 Sep, 2025 | Meera Rao | Common Stock | D | 3,000 | $71.72 | 29,914 | D | S |
| 01 Sep, 2025 | Desmond Lynch | Common Stock | D | 2,725 | $73.48 | 73,504 | D | F |
| 29 Aug, 2025 | Steven Laub | Common Stock | D | 2,261 | $78.72 | 6,796 | D | S |
| 29 Aug, 2025 | Steven Laub | - | - | 6,796 | D | |||
| 13 Aug, 2025 | Emiko Higashi | Common Stock | D | 1,075 | $77.75 | 62,296 | D | S |
| 08 Aug, 2025 | Necip Sayiner | - | - | 38,324 | D | |||
| 08 Aug, 2025 | Necip Sayiner | Common Stock | D | 7,500 | $73.53 | 38,324 | D | S |
| 04 Aug, 2025 | John Shinn | Common Stock | D | 790 | $74.61 | 20,188 | D | S |
| 04 Aug, 2025 | Emiko Higashi | Common Stock | D | 1,111 | $75.00 | 63,371 | D | S |
| 04 Aug, 2025 | John Shinn | - | - | 20,188 | D | |||
| 27 May, 2025 | Steven Laub | Common Stock | D | 1,847 | $55.12 | 9,057 | D | S |