Berkley Neil Lindsay 4

What Happened

• Neil Berkley, Alector's CFO and Chief Business Officer, disposed of 19,360 Alector shares on 2026-06-02 in an open-market sale. The filing reports a weighted-average sale price of $1.97 per share for total proceeds of approximately $38,221. The company transaction code is S (sale).
• According to the filing footnote, the shares were sold to satisfy the reporting person's tax obligations in connection with the vesting of restricted stock units (RSUs), a routine "sell-to-cover" action rather than a directional investment bet.

Key Details

• Transaction date: 2026-06-02; Form 4 filed: 2026-06-03 (timely).
• Shares sold: 19,360; weighted-average price reported: $1.97; total proceeds ≈ $38,221.
• Price range: shares were sold in multiple trades at prices between $1.92 and $2.08 (footnote F2). The weighted average is shown; per-trade breakdown can be provided to SEC staff, the issuer, or any security holder upon request.
• Reason noted (footnote F1): sale to satisfy tax obligations from RSU vesting (sell-to-cover).
• Shares owned after the transaction: not specified in the provided filing excerpt.
• Filing timeliness: filed promptly the next day; not reported as late.

Context

• Sell-to-cover transactions following RSU vesting are administrative: they fund tax withholding and do not necessarily reflect the insider's view on the company's prospects. For retail investors, purchases are generally more informative about insider confidence; routine tax-related sales are common and often neutral in meaning.