Charles Kissner

Charles Kissner: Director at Rambus. What Charles Kissner holds in an AI or semiconductor company tracked on Silicon Floor, from their SEC filings, broken down: the shares held and how, then any restricted shares, options or other rights declared.

Rambus (RMBS)

Charles Kissner holds 44,292 Rambus shares (0.04% of the company), worth about $4.5M at the last price, according to the Form 4 of Oct 2, 2026.

• Shares held: 40,545 (0.04%), $4.2M — Held in their own name.
• Shares held: 3,747 (0.00%), $383,636.60 — Held through companies or funds (See Footnote).

Declarations

• Rambus (RMBS) — Form 4 of Oct 2, 2026: open-market sale of 5,000 at $111.00; 44,292 shares after 0001193125-26-413981
• Rambus (RMBS) — Form 4 of Sep 22, 2026: open-market sale of 5,000 at $105.00; 49,292 shares after 0001193125-26-400762
• Rambus (RMBS) — Form 4 of Aug 7, 2026: open-market sale of 5,000 at $100.92; 54,292 shares after 0001193125-26-342968
• Rambus (RMBS) — Form 4 of Apr 1, 2026: grant or award of 2,223; 59,292 shares after 0001193125-26-142636
• Rambus (RMBS) — Form 4 of Apr 1, 2025: grant or award of 3,824; 57,069 shares after 0000917273-25-000053

Sources: SEC Schedules 13D and 13G (stakes above 5%, which count everything a person votes or can acquire within 60 days) and Forms 3, 4 and 5 (the shares a director, officer or 10% owner holds, filed within two business days of each trade). Values at the last price.

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