KISSNER CHARLES 4

What Happened

• Charles Kissner, a director of Rambus, was granted 2,223 restricted stock units (RSUs) on April 1, 2026. The grant is reported as an acquisition at $0.00 (no cash paid at grant). Each RSU represents the contingent right to receive one share of RMBS common stock upon vesting.

Key Details

• Transaction date and price: April 1, 2026; 2,223 RSUs @ $0.00 (reported acquisition).
• Shares owned after transaction: not specified in the filing.
• Vesting and holding: per the filing, all RSUs vest on April 1, 2027 (or the first business day thereafter) (Footnote F1).
• Ownership vehicle: the RSUs/shares are held directly by Kissner and Associates LLC, of which the reporting person is the owner (Footnote F2).
• Filing timing: Form 4 filed April 3, 2026; filing shows no indication of lateness.

Context

• RSUs are a form of compensation that convert to actual shares only upon vesting; until then they are a contingent right. Because this was a grant (award) rather than a purchase or sale, it is routine compensation reporting and does not by itself indicate buying or selling sentiment.