Leproust Emily M. 4

What Happened

• Emily M. Leproust, CEO of Twist Bioscience (TWST), disposed of 1,742 shares on 2026-03-20 at $43.79 per share, for a total value of $76,276. The Form 4 lists the transaction as a sale (code S) executed in the open market or privately.
• Footnote F1 clarifies this was a mandated "sell-to-cover" to satisfy tax withholding obligations tied to the vesting of restricted stock units, meaning the sale was to cover taxes and not a discretionary trade reflecting sentiment about the company.

Key Details

• Transaction date: 2026-03-20; Price: $43.79; Shares sold: 1,742; Proceeds: $76,276
• Transaction type: Sale (S); footnote F1 = sell-to-cover for tax withholding
• Form 4 filed: 2026-03-24 (reports the 3/20 transaction)
• Shares owned after transaction: Not specified in the provided excerpt
• Other footnotes in the filing (F2–F6) describe various option vesting schedules and a past performance-option vesting (F6); they do not change that this specific sale was tax withholding-related

Context

• Sell-to-cover transactions are common when restricted stock units vest and the company or plan requires withholding taxes. These are generally considered routine administrative sales and are not a clear bearish signal about the insider's view of the company.
• For retail investors, purchases by insiders often carry more weight than mandated sales; this filing documents a routine tax-related disposal rather than a discretionary sale.