SITIME Exec VP Lionel Bonnot Sells 9,630 Shares for Taxes

What Happened

• Lionel Bonnot, Executive Vice President, Worldwide Sales and Business Development at SITIME Corp (SITM), disposed of 9,630 shares on August 20, 2026 to satisfy tax withholding obligations. The shares were disposed at $598.81 each for a total of $5,766,540. This was a tax-withholding disposal (transaction code F), not an open-market sale for investment purposes.

Key Details

• Transaction date: 2026-08-20; Filing date (Form 4): 2026-08-24 (appears late under the usual two-business-day rule).
• Price per share: $598.81; Shares disposed: 9,630; Total value: $5,766,540.
• Shares owned after transaction: not specified in the provided excerpt; filing footnote notes unvested issuable shares (see below).
• Footnote (F1): Includes 46,892 shares issuable pursuant to previously reported restricted stock units and performance-based restricted stock units that have not vested — 18,660 time-based RSUs and 28,232 performance-based RSUs tied to absolute/relative price performance.
• Transaction type explained: "F" indicates shares were withheld/disposed to cover tax liability on awards (common practice on RSU/PSU vesting).

Context

• This was a tax-withholding disposition related to equity awards (a routine administrative action), not necessarily an indicator of the insider’s market view. The filing shows unvested RSUs/PSUs remain outstanding, including a significant portion that vests based on future performance metrics.