Filing Flows › Companies › Rambus › Timeline
Rambus stock timeline
A year of the price with every insider trade, planned sale, earnings report and material 8-K marked
252 sessions−30.0% to $74.53
Rambus (RMBS) stock fell 30% over the last 252 sessions, to $74.53. On the way it reported 0 quarters, its insiders filed 8 open-market trades and 3 Form 144 notices of planned sales, and the company filed 5 material 8-Ks. Each is marked on the price and listed with what the stock did next.
Each mark, and what followed
| Date | Kind | What | Next session | 5 sessions | 21 sessions |
|---|---|---|---|---|---|
| Oct 2, 2026 | Form 144 | Form 144: Charles Kissner plans to sell $555K | +4.3% (+3.5% vs SPY) | +1.1% (−0.2% vs SPY) | −23.7% (−22.6% vs SPY) |
| Sep 22, 2026 | Form 144 | Form 144: Charles Kissner plans to sell $525K | +8.2% (+8.2% vs SPY) | +5.2% (+6.2% vs SPY) | −4.8% (−4.2% vs SPY) |
| Sep 4, 2026 | 8-K | Directors and officers: departures, appointments, pay | +1.7% (+2.2% vs SPY) | −6.1% (−4.9% vs SPY) | +28.9% (+27.5% vs SPY) |
| Aug 7, 2026 | Form 144 | Form 144: Charles Kissner plans to sell $505K | +3.9% (+3.3% vs SPY) | +1.7% (+0.5% vs SPY) | −13.4% (−13.6% vs SPY) |
| Aug 5, 2026 | 8-K | Material definitive agreement | −3.3% (−3.1% vs SPY) | −4.2% (−4.1% vs SPY) | −17.1% (−16.3% vs SPY) |
| Jun 3, 2026 | Insider sale | Sayiner Necip sold $851K | +2.3% (+3.0% vs SPY) | −12.7% (−9.7% vs SPY) | −39.0% (−37.3% vs SPY) |
| Jun 2, 2026 | Insider sale | Higashi Emiko sold $1.6M | +12.3% (+12.2% vs SPY) | +3.0% (+5.6% vs SPY) | −17.5% (−16.0% vs SPY) |
| Jun 1, 2026 | Insider sale | Stang Eric B sold $730K | +1.4% (+1.1% vs SPY) | −0.1% (+2.4% vs SPY) | −9.1% (−8.1% vs SPY) |
| May 26, 2026 | Insider sale | Higashi Emiko sold $788K | +9.5% (+8.8% vs SPY) | +3.1% (+1.4% vs SPY) | −13.8% (−12.4% vs SPY) |
| May 26, 2026 | Insider sale | Fan Xianzhi Sean sold $5.8M | +9.5% (+8.8% vs SPY) | +3.1% (+1.4% vs SPY) | −13.8% (−12.4% vs SPY) |
| May 22, 2026 | Insider sale | Shinn John sold $144K | +0.8% (+0.4% vs SPY) | +2.5% (+0.7% vs SPY) | −10.1% (−9.1% vs SPY) |
| May 8, 2026 | Insider sale | Sayiner Necip sold $1.3M | +2.1% (+1.3% vs SPY) | +3.0% (+0.8% vs SPY) | +18.3% (+17.3% vs SPY) |
| May 7, 2026 | Insider sale | Laub Steven sold $188K | −2.7% (−2.4% vs SPY) | +3.6% (+2.5% vs SPY) | +11.1% (+10.6% vs SPY) |
| Apr 29, 2026 | 8-K | Directors and officers: departures, appointments, pay | +2.6% (+1.6% vs SPY) | +14.8% (+11.7% vs SPY) | +26.0% (+19.9% vs SPY) |
| Feb 12, 2026 | 8-K | Directors and officers: departures, appointments, pay | +6.2% (+6.1% vs SPY) | +6.9% (+5.7% vs SPY) | −3.2% (−1.4% vs SPY) |
| Feb 10, 2026 | 8-K | Directors and officers: departures, appointments, pay | −7.4% (−7.4% vs SPY) | −2.5% (−1.7% vs SPY) | −17.5% (−13.7% vs SPY) |
Insiders’ record here
In the year on the chart, Rambus' insiders reported 0 open-market buys ($0) and 8 sales ($11.3M). Of the 8 old enough to score, 8 were followed by the stock doing what the trade implied over the next 63 sessions (beating SPY after a buy, lagging it after a sale); the median excess return after a buy was — and after a sale −42.3%.
Across the whole universe (19,782 scored trades), insider buys beat the market 46% of the time and sales were followed by a lagging stock 61% of the time; buys of $1M or more 39%. Every pattern →
What this kind of 8-K usually did
| Item | 8-Ks | Next session, median | Up next session | 21 sessions, median | Typical size |
|---|---|---|---|---|---|
| 5.02 Directors and officers: departures, appointments, pay | 39,174 | −0.1% | 48% | +0.7% | ±1.4% |
| 1.01 Material definitive agreement | 23,525 | 0.0% | 51% | +1.0% | ±1.4% |
| 2.03 New debt or off-balance-sheet obligation | 13,268 | 0.0% | 50% | +1.2% | ±1.3% |
Across every company in the move-odds universe, measured from the close before the filing. Every 8-K item ranked →
Rambus: every quarter → Live insider trades →
Prices are daily closes; filings and trades are as filed with the SEC (Form 4 within two business days of the trade, 8-K within four of the event). Moves after a mark are the stock's close-to-close change and the same for SPY; they describe the record, not what the next one will do. Not investment advice.