Rambus Inc
Could not find a ticker for this position, may be a filing error
A fabless designer of memory interface chips and silicon IP that keep fast-moving data flowing, its DDR5 and LPDDR5 chipsets plus controller and security cores power data center and AI systems for chip makers and server builders. Founded in 1990 by engineers Mark Horowitz and Mike Farmwald to close the widening gap between processor and memory speeds, the company's name often draws playful comparisons to action hero Rambo—though the similarity is purely coincidental.
1.375% convertible bond due 02/01/2023
Granted 32.7K · Sold 45.3K
Granted 22.2K · Sold 37.9K
Granted 2.2K
Granted 2.2K · Sold 15.0K
Granted 41.3K
Granted 2.2K · Sold 5.0K
Granted 5.6K · Sold 10.1K
Granted 2.2K · Sold 11.5K
Granted 2.2K · Sold 14.8K
Granted 2.8K
Granted 2.2K · Sold 1.5K
Granted 2.4K
| Insider | Stake change | Holds now | Granted / vested | Bought | Sold |
|---|---|---|---|---|---|
| Seraphin LucPresident and CEO, Director · 11 transactions | -25.4% | 345.8K | 32.7K | — | 45.3K |
| Fan Xianzhi SeanEVP, COO · 4 transactions | -41.2% | 168.4K | 22.2K | — | 37.9K |
| Kissner CharlesDirector · 1 transaction | +3.9% | 59.3K | 2.2K | — | — |
| Higashi EmikoDirector · 4 transactions | -12.5% | 54.5K | 2.2K | — | 15.0K |
| Gagneja SumeetSVP, CFO · 2 transactions | — | 41.3K | 41.3K | — | — |
| Stang Eric BDirector · 2 transactions | -11.5% | 21.4K | 2.2K | — | 5.0K |
| Shinn JohnSVP, General Counsel · 8 transactions | -43.6% | 21.1K | 5.6K | — | 10.1K |
| Rao MeeraDirector · 3 transactions | -31.7% | 20.0K | 2.2K | — | 11.5K |
| Sayiner NecipDirector · 3 transactions | -40.9% | 18.2K | 2.2K | — | 14.8K |
| Allen John KChief Accounting Officer · 4 transactions | +6.5% | 17.1K | 2.8K | — | — |
| Laub StevenDirector · 2 transactions | +10.6% | 7.5K | 2.2K | — | 1.5K |
| Peng VictorDirector · 2 transactions | — | 2.4K | 2.4K | — | — |
Select a row to see that insider’s individual transactions. Sum of the holdings confirmed in the 12 months before this insider's last filing. A Form 4 reports a holding per line — held directly, or through a named trust, partnership or foundation, and in each share class separately — never a person’s total. Lines not restated in that time are left out and shown apart: an active filer restates what they still hold, so a line they did not restate is more often an entity since renamed, whose shares a successor line reports too. An amber marker means some were left out.
Net open-market activity over the last 6 months: -141.2K shares. Grants, option exercises and tax withholding are excluded — they are compensation mechanics, not decisions to buy or sell.