Rambus Inc. (RMBS) Insider Trading
Directors, officers and holders of more than 10% of RMBS report their trades in its stock on SEC Form 4, within two business days. Each row below is one Form 4 transaction line. The one-letter code says what kind of transaction it was: only P (purchase) and S (sale) are open-market or private trades; awards, option exercises, tax withholding and gifts carry other codes.
Recent Form 4 transactions
The 50 most recent of 118 transactions on file: 0 with code P, 30 with code S and 20 with other codes.
| Date | Insider | Title | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Oct 2, 2026 | KISSNER CHARLES | Director | S Sale | 5,000 | $111.00 | $555,000 |
| Sep 22, 2026 | KISSNER CHARLES | Director | S Sale | 5,000 | $105.00 | $525,000 |
| Aug 7, 2026 | KISSNER CHARLES | Director | S Sale | 5,000 | $100.92 | $504,600 |
| Jun 3, 2026 | Sayiner Necip | Director | S Sale | 5,000 | $170.15 | $850,750 |
| Jun 2, 2026 | Higashi Emiko | Director | S Sale | 5,000 | $158.00 | $790,000 |
| Jun 2, 2026 | Higashi Emiko | Director | S Sale | 5,000 | $163.00 | $815,000 |
| Jun 1, 2026 | STANG ERIC B | Director | S Sale | 5,000 | $146.00 | $730,000 |
| May 26, 2026 | FAN XIANZHI SEAN | EVP, COO | S Sale | 37,814 | $151.69 | $5,735,991 |
| May 26, 2026 | Higashi Emiko | Director | S Sale | 5,000 | $157.57 | $787,851 |
| May 26, 2026 | FAN XIANZHI SEAN | EVP, COO | S Sale | 100 | $152.35 | $15,235 |
| May 22, 2026 | Shinn John | SVP, General Counsel | S Sale | 1,000 | $143.63 | $143,630 |
| May 8, 2026 | Sayiner Necip | Director | S Sale | 9,824 | $130.18 | $1,278,888 |
| May 7, 2026 | LAUB STEVEN | Director | S Sale | 1,500 | $125.52 | $188,279 |
| May 1, 2026 | Gagneja Sumeet | SVP, CFO | A Award | 26,802 | Not measured | Not measured |
| May 1, 2026 | Gagneja Sumeet | SVP, CFO | A Award | 14,518 | Not measured | Not measured |
| Apr 24, 2026 | Rao Meera | Director | S Sale | 2,972 | $150.30 | $446,692 |
| Apr 14, 2026 | Rao Meera | Director | S Sale | 8,538 | $118.08 | $1,008,167 |
| Apr 3, 2026 | Allen John K | Chief Accounting Officer | F Tax Payment | 1,131 | $92.22 | $104,301 |
| Apr 2, 2026 | Seraphin Luc | President and CEO | S Sale | 2,750 | $87.11 | $239,565 |
| Apr 2, 2026 | Seraphin Luc | President and CEO | S Sale | 2,511 | $86.04 | $216,045 |
| Apr 2, 2026 | Seraphin Luc | President and CEO | S Sale | 165 | $88.35 | $14,578 |
| Apr 1, 2026 | PENG VICTOR | Director | A Award | 2,223 | Not measured | Not measured |
| Apr 1, 2026 | Shinn John | SVP, General Counsel | F Tax Payment | 1,913 | $89.95 | $172,074 |
| Apr 1, 2026 | Higashi Emiko | Director | A Award | 2,223 | Not measured | Not measured |
| Apr 1, 2026 | KISSNER CHARLES | Director | A Award | 2,223 | Not measured | Not measured |
| Apr 1, 2026 | FAN XIANZHI SEAN | EVP, COO | F Tax Payment | 9,916 | $89.95 | $891,944 |
| Apr 1, 2026 | STANG ERIC B | Director | A Award | 2,223 | Not measured | Not measured |
| Apr 1, 2026 | Rao Meera | Director | A Award | 2,223 | Not measured | Not measured |
| Apr 1, 2026 | Seraphin Luc | President and CEO | F Tax Payment | 12,561 | $89.95 | $1,129,862 |
| Apr 1, 2026 | LAUB STEVEN | Director | A Award | 2,223 | Not measured | Not measured |
| Apr 1, 2026 | Seraphin Luc | President and CEO | A Award | 32,684 | Not measured | Not measured |
| Apr 1, 2026 | Shinn John | SVP, General Counsel | A Award | 5,558 | Not measured | Not measured |
| Apr 1, 2026 | FAN XIANZHI SEAN | EVP, COO | A Award | 22,234 | Not measured | Not measured |
| Apr 1, 2026 | Allen John K | Chief Accounting Officer | A Award | 2,779 | Not measured | Not measured |
| Apr 1, 2026 | Allen John K | Chief Accounting Officer | F Tax Payment | 495 | $89.95 | $44,525 |
| Apr 1, 2026 | Allen John K | Chief Accounting Officer | F Tax Payment | 658 | $89.95 | $59,187 |
| Apr 1, 2026 | Sayiner Necip | Director | A Award | 2,223 | Not measured | Not measured |
| Mar 10, 2026 | Shinn John | SVP, General Counsel | S Sale | 4,356 | $88.64 | $386,099 |
| Mar 10, 2026 | Shinn John | SVP, General Counsel | S Sale | 200 | $89.55 | $17,909 |
| Mar 3, 2026 | Shinn John | SVP, General Counsel | S Sale | 1,603 | $94.07 | $150,794 |
| Mar 3, 2026 | Shinn John | SVP, General Counsel | S Sale | 700 | $94.89 | $66,421 |
| Mar 3, 2026 | Shinn John | SVP, General Counsel | S Sale | 2,254 | $92.77 | $209,104 |
| Mar 2, 2026 | Seraphin Luc | President and CEO | S Sale | 13,654 | $98.22 | $1,341,071 |
| Mar 2, 2026 | Seraphin Luc | President and CEO | S Sale | 7,225 | $97.38 | $703,569 |
| Mar 2, 2026 | Seraphin Luc | President and CEO | S Sale | 9,469 | $99.17 | $939,002 |
| Mar 2, 2026 | Seraphin Luc | President and CEO | S Sale | 1,679 | $95.83 | $160,901 |
| Mar 2, 2026 | Seraphin Luc | President and CEO | S Sale | 6,587 | $100.20 | $660,004 |
| Mar 2, 2026 | Seraphin Luc | President and CEO | S Sale | 1,300 | $101.65 | $132,150 |
| Mar 2, 2026 | PENG VICTOR | Director | A Award | 168 | Not measured | Not measured |
| Feb 23, 2026 | Lynch Desmond | SVP, CFO | S Sale | 4,273 | $101.53 | $433,838 |
The full Form 4 history is on the RMBS company page (Insider Trades card, View all).
Questions about this data
Which insider transactions are open-market trades?
Code P (open market or private purchase) and code S (open market or private sale). Code F is shares withheld to pay tax on vesting stock, A is an award from the company, M and X are option exercises and G is a gift. None of those is the insider choosing to buy or sell in the market.
How quickly are insider trades reported?
A Form 4 is due before the end of the second business day after the trade. The date shown is the transaction date from the form.
Who has to file Form 4?
Officers, directors and beneficial owners of more than 10% of a class of the company’s registered equity, under Section 16 of the Securities Exchange Act.
Look up any code in the Form 4 transaction code reference, or read Form 4 codes explained.