RMBS
RAMBUS INC · Technology · Market cap $9.4B(Price slightly stale)
Insiders sold $1.6M net in the last 90 days ·1 seller, 0 buyers· 3 of 3 sales under Rule 10b5-1 plans· latest Form 4 filed Oct 5, 2026
Insider Buying
$0
reported purchases (SEC code P)
Insider Selling
$21.0M
reported sales (SEC code S)
Unique Insiders
10
in the rolling window
Latest filing
Oct 5, 2026
KISSNER CHARLES
RAMBUS INC (RMBS) has 38 SEC Form 4 filings (62 transaction rows) in the rolling window, disclosed by 10 distinct insiders. Most recent filing: Oct 5, 2026.
Inside the rolling window, 10 insiders at RAMBUS INC reported no open-market purchases and 20 open-market sales totaling $21.0M. The most active filer is Director KISSNER CHARLES with 3 filings. Insiders have net sold $14.4M over the trailing 6 months. The most recent open-market filing is a sale of 5,000 shares by Director KISSNER CHARLES, dated Oct 2, 2026, worth $555K.
- Industry:Semiconductors
- CEO:Luc Seraphin
- Employees:791
- HQ:San Jose, CA, US
- IPO:1997-05-14
| Source | |||||||
|---|---|---|---|---|---|---|---|
| Director | Sale | 5,000 | $555K | Oct 5 | -22.3% | SEC ↗ | |
| Director | Sale | 5,000 | $525K | Sep 24 | -18.1% | SEC ↗ | |
KISSNER CHARLESFirst filing | Director | Sale | 5,000 | $505K | Aug 10 | -10.7% | SEC ↗ |
| Director | Sale | 10,000 | $1.6M | Jun 3 | -49.8% | SEC ↗ | |
| Director | Sale | 5,000 | $851K | Jun 3 | -49.8% | SEC ↗ | |
| Director | Sale | 5,000 | $730K | Jun 2 | -48.6% | SEC ↗ | |
Higashi EmikoFirst filing | Director | Sale | 5,000 | $788K | May 27 | -42.4% | SEC ↗ |
FAN XIANZHI SEANFirst filing | EVP, COO | Sale | 37,914 | $5.8M | May 26 | -45.5% | SEC ↗ |
| SVP, General Counsel | Sale | 1,000 | $144K | May 26 | — | SEC ↗ | |
Sayiner NecipFirst in 5 months | Director | Sale | 9,824 | $1.3M | May 11 | — | SEC ↗ |
LAUB STEVENFirst filing | Director | Sale | 1,500 | $188K | May 11 | — | SEC ↗ |
| Insider | Sale | 2,972 | $447K | Apr 27 | — | SEC ↗ | |
Rao MeeraFirst filing | Director | Sale | 8,538 | $1.0M | Apr 15 | — | SEC ↗ |
| President and CEO | Sale | 5,426 | $470K | Apr 3 | — | SEC ↗ | |
| SVP, General Counsel | Sale | 4,556 | $404K | Mar 11 | — | SEC ↗ | |
Shinn JohnFirst filing | SVP, General Counsel | Sale | 4,557 | $426K | Mar 4 | — | SEC ↗ |
Seraphin LucFirst filing | President and CEO | Sale | 39,914 | $3.9M | Mar 3 | — | SEC ↗ |
Lynch DesmondFirst filing | SVP, CFO | Sale | 4,273 | $434K | Feb 24 | — | SEC ↗ |
STANG ERIC BFirst filing | Director | Sale | 5,000 | $512K | Nov 12 | — | SEC ↗ |
STANG ERIC BFirst filing | Director | Sale | 4,000 | $447K | Nov 12 | — | SEC ↗ |
Earnings: last 7 quarters
Congress trading RMBS 1 all-time
- DSen. Thomas Richard CarperOther$1,001 - $15,0002023-08-10
STOCK Act disclosures are filed up to 45 days after the trade. Amount is a disclosed range, not an exact figure.
Frequently asked questions
How many SEC Form 4 insider filings does RMBS have?
RAMBUS INC (RMBS) has 38 SEC Form 4 filings (62 transaction rows) in the rolling 365-day window, disclosed by 10 distinct insiders. Most recent filing: Oct 5, 2026.
When was the most recent SEC Form 4 filing for RMBS?
The most recent Form 4 filing for RMBS on Tracefour is dated Oct 5, 2026.
Who is the most active insider at RMBS?
The most active SEC Form 4 filer at RMBS in the rolling window is Director KISSNER CHARLES, with 3 filings.
What is the net insider flow at RMBS over the last 6 months?
Over the trailing 180 days, insiders at RMBS have net sold $14.4M based on SEC Form 4 disclosures.
What is the total insider buy and sell value at RMBS in the current window?
Inside the rolling window, insiders at RMBS bought $0 and sold $21.0M based on SEC Form 4 filings.
Can I get alerts for RMBS insider trading?
Yes. Tracefour sends a free email when a new SEC Form 4 purchase or sale is filed at RAMBUS INC (RMBS). Alerts are set per company from the page itself, there is no paid tier, and each email links to the original filing on SEC EDGAR.
Related companies
RAMBUS INC is in the Technology sector.