Rambus Inc.
Rambus Inc. (RMBS) Insider Trading
Form 4 buy vs sell counts, ratio, and sentiment — switch this quarter or last 12 months; chart and transactions below.
SEC EDGAR · FMP · RMBS · as of Jun 8, 2026
Activity summary
Buy transactions
0
P-Purchase only
Sell transactions
40
12 Months
Buy/Sell ratio
0.00
Buy/Sell (by trades)
Overall sentiment
Rambus Inc. insiders have been primarily selling shares over the past 12 Months. Selling activity is often driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment toward the company.
▸ Source: SEC EDGAR · Form 3 & 4 · via Financial Modeling Prep · Buy = P-Purchase only · Sell = S-Sale only
As of Jun 8, 2026
RMBS insider buying and selling by quarter
RMBS insider selling · RMBS insider buying stocks · quarterly insider activity
Mobile shows last 4Q · Desktop shows full 8Q
▸ Source: SEC EDGAR · Form 3 & 4 · via Financial Modeling Prep · last 8 quarters
As of Jun 8, 2026
Active insiders
Most active in past 12 months · RMBS ceo insider trading
Showing all insiders · Click a card to filter the transactions table below
▸ Aggregated from reportingName · top 5 by trade count (12M) · no extra API
Recent insider transactions
RMBS executive sell shares · RMBS board member insider trading · RMBS insider trading SEC filing
Scroll horizontally to see all columns
| Date | Insider | Type | Shares | Value | Filing |
|---|---|---|---|---|---|
| Jun 3, 2026 | Sayiner Necip Director | Sale | 5,000 | $851K | Form 4 |
| Jun 2, 2026 | Higashi Emiko Director | Sale | 5,000 | $815K | Form 4 |
| Jun 2, 2026 | Higashi Emiko Director | Sale | 5,000 | $790K | Form 4 |
| Jun 1, 2026 | STANG ERIC B Director | Sale | 5,000 | $730K | Form 4 |
| May 26, 2026 | Higashi Emiko Director | Sale | 5,000 | $788K | Form 4 |
| May 26, 2026 | FAN XIANZHI SEAN EVP, COO | Sale | 37,814 | $5.74M⚡ | Form 4 |
| May 26, 2026 | FAN XIANZHI SEAN EVP, COO | Sale | 100 | $15K | Form 4 |
| May 22, 2026 | Shinn John SVP, General Counsel | Sale | 1,000 | $144K | Form 4 |
| May 8, 2026 | Sayiner Necip Director | Sale | 9,824 | $1.28M⚡ | Form 4 |
| May 7, 2026 | LAUB STEVEN Director | Sale | 1,500 | $188K | Form 4 |
| May 1, 2026 | Gagneja Sumeet SVP, CFO | Award | 26,802 | — | Form 4 |
| May 1, 2026 | Gagneja Sumeet SVP, CFO | Award | 14,518 | — | Form 4 |
| Apr 24, 2026 | Rao Meera Director | Sale | 2,972 | $447K | Form 4 |
| Apr 14, 2026 | Rao Meera Director | Sale | 8,538 | $1.01M⚡ | Form 4 |
| Apr 3, 2026 | Allen John K CAO | Other | 1,131 | $104K | Form 4 |
| Apr 1, 2026 | Higashi Emiko Director | Award | 2,223 | — | Form 4 |
| Apr 1, 2026 | LAUB STEVEN Director | Award | 2,223 | — | Form 4 |
| Apr 1, 2026 | Rao Meera Director | Award | 2,223 | — | Form 4 |
| Apr 1, 2026 | Sayiner Necip Director | Award | 2,223 | — | Form 4 |
| Apr 1, 2026 | STANG ERIC B Director | Award | 2,223 | — | Form 4 |
| Apr 1, 2026 | PENG VICTOR Director | Award | 2,223 | — | Form 4 |
| Apr 1, 2026 | KISSNER CHARLES Director | Award | 2,223 | — | Form 4 |
| Apr 1, 2026 | Shinn John SVP, General Counsel | Award | 5,558 | — | Form 4 |
| Apr 1, 2026 | Shinn John SVP, General Counsel | Other | 1,913 | $172K | Form 4 |
| Apr 1, 2026 | Seraphin Luc President and CEO · Director | Award | 32,684 | — | Form 4 |
Seraphin Luc
President and CEO · Director
Date
Apr 1
Shares
32,684
Price
—
Value
—
⚡ = value ≥ $1M · Award/Option price shows — · formType=4 · securityName=Common Stock · url → sec.gov/Archives/edgar
▸ Source: SEC EDGAR · Form 4 filings · ⚡ = value ≥ $1M · Award/Option price shows —
About RMBS insider trading
RMBS insider trades
Rambus Inc. (RMBS) insider trading data is sourced from SEC Form 4 filings submitted by corporate insiders, including Seraphin Luc (President and CEO · Director), Shinn John (SVP, General Counsel), FAN XIANZHI SEAN (EVP, COO). Over the past 12 months, 5 insiders have filed transactions with the SEC. RMBS insiders have been primarily selling, which may reflect pre-scheduled Rule 10b5-1 plan executions.
For Rambus Inc.'s institutional ownership breakdown and insider ownership percentage, see the Ownership tab → Ownership tab →
Frequently asked questions
RMBS insider trading · 5 questionsThe insiders of Rambus Inc. (RMBS) include executives and directors such as Seraphin Luc (President and CEO · Director), Shinn John (SVP, General Counsel), FAN XIANZHI SEAN (EVP, COO), among others. Over the past 12 months, 5 insiders have filed Form 4 transactions with the SEC. Insider transactions are required to be reported within 2 business days of the trade date.
▸ Source: FMP /stable/insider-trading/search · SEC EDGAR Form 3 & 4 · acquisitionOrDisposition A=Buy, D=Sell · RSU vesting (M-Exempt) excluded from sentiment bar · As of Jun 8, 2026