Wassenaar Yvonne 4

What Happened Yvonne Wassenaar, a director of Rubrik, sold 721 shares in an open‑market transaction on June 3, 2026 at $80.73 per share, generating proceeds of $58,206. The same filing shows conversion of 721 derivative shares (reported at $0) and a grant of 3,709 restricted stock units (RSUs) reported as acquired at $0.00.

Key Details

• Transaction date: 2026-06-03.
• Sale: 721 shares sold at $80.73 each for total proceeds of $58,206.
• Conversions/grant: 721 shares reported as conversion of a derivative security (zero price) and a grant of 3,709 RSUs (zero price).
• RSU vesting (Footnote F2): the 3,709 RSUs vest in four equal quarterly installments on 9/15/2026, 12/15/2026, 3/15/2027 and 6/15/2027, subject to continued service.
• 10b5-1 plan (Footnote F1): the sale was executed under a Rule 10b5-1 trading plan adopted December 15, 2025.
• Class conversion note (Footnote F3): each Class B share can convert into one Class A share upon sale/transfer or at the holder’s option; the filing’s conversion entries relate to this structure.
• Shares owned after transaction: Not specified in the Form 4 filing.
• Filing timeliness: Reported on 2026-06-03 (period of report 2026-06-03) — appears timely.

Context The sale was preplanned under a Rule 10b5-1 plan, which means it was an automated, pre‑arranged trade rather than an ad‑hoc decision. The RSU grant will vest over a year and does not represent immediately transferable shares. The conversion entries reflect internal conversion mechanics (e.g., Class B to Class A conversion) rather than a cash purchase.