Rambus (RMBS) insider trading
13 directors and officers declare holding shares of Rambus (RMBS), each in their own filing with the SEC. The largest is Luc Seraphin (President and CEO · Director) with 345,767 shares, 0.32% of the company, worth $37.2M at the last close. The most recent move on file: Charles Kissner sold 5,000 shares at $111.00 on Oct 2, 2026. Of the 12 with a trade on file, 2 last bought and 10 last sold. Purchases and sales are as reported on Forms 3, 4 and 5 — the SEC counts private transactions too, and many large sales follow a plan arranged in advance. Holdings are never added up: two spouses often report the same shares, and a joint filing carries a fund's.
| Insider | Role | Shares | % of company | Value | Last trade on file | Filed |
|---|---|---|---|---|---|---|
| Luc Seraphin | President and CEO · Director | 345,767 | 0.32% | $37.2M | sold 5,426 shares at $86.04 on Apr 2, 2026 | Apr 2, 2026 |
| Xianzhi Sean Fan | EVP, COO | 168,358 | 0.16% | $18.1M | sold 37,914 shares at $151.69 on May 26, 2026 | May 26, 2026 |
| Emiko Higashi | Director | 49,519 | 0.05% | $5.3M | sold 10,000 shares at $163.00 on Jun 2, 2026 | Jun 2, 2026 |
| Charles Kissner | Director | 44,292 | 0.04% | $4.8M | sold 5,000 shares at $111.00 on Oct 2, 2026 | Oct 2, 2026 |
| Sumeet Gagneja | SVP, CFO | 41,320 | 0.04% | $4.4M | bought 41,320 shares on May 1, 2026 | May 1, 2026 |
| Eric B. Stang | Director | 21,441 | 0.02% | $2.3M | sold 5,000 shares at $146.00 on Jun 1, 2026 | Jun 1, 2026 |
| John Shinn | SVP, General Counsel | 21,112 | 0.02% | $2.3M | sold 1,000 shares at $143.63 on May 22, 2026 | May 22, 2026 |
| Meera Rao | Director | 19,974 | 0.02% | $2.1M | sold 2,972 shares at $150.30 on Apr 24, 2026 | Apr 24, 2026 |
| Necip Sayiner | Director | 18,223 | 0.02% | $2.0M | sold 5,000 shares at $170.15 on Jun 3, 2026 | Jun 3, 2026 |
| John K. Allen | Chief Accounting Officer | 17,131 | 0.02% | $1.8M | sold 1,131 shares at $92.22 on Apr 3, 2026 | Apr 3, 2026 |
| William Clarence Taulbee II | Chief Accounting Officer | 8,293 | <0.01% | $891,207.25 | — | Sep 8, 2026 |
| Steven Laub | Director | 7,519 | <0.01% | $808,029.34 | sold 1,500 shares at $125.52 on May 7, 2026 | May 7, 2026 |
| Victor Peng | Director | 2,391 | <0.01% | $256,948.82 | bought 2,223 shares on Apr 1, 2026 | Apr 1, 2026 |
Each insider at Rambus
- Luc Seraphin — President and CEO · Director
- Xianzhi Sean Fan — EVP, COO
- Emiko Higashi — Director
- Charles Kissner — Director
- Sumeet Gagneja — SVP, CFO
- Eric B. Stang — Director
- John Shinn — SVP, General Counsel
- Meera Rao — Director
- Necip Sayiner — Director
- John K. Allen — Chief Accounting Officer
- William Clarence Taulbee II — Chief Accounting Officer
- Steven Laub — Director
No longer filing
- Desmond Lynch — SVP, CFO
What insiders bought and sold across AI stocks · All filings on sec.gov