Wong-Sarad Grace 4

What Happened

• Grace Wong-Sarad, Principal Accounting Officer of Alector, sold 3,367 common shares in an open-market/private sale on March 3, 2026. The total proceeds reported were $7,012, at a weighted average price of $2.08 per share. This was a sale (not a purchase), which is often routine insider selling rather than a clear bullish signal.

Key Details

• Transaction date: March 3, 2026.
• Transaction type/code: Sale (S).
• Shares sold: 3,367; weighted average price: $2.08; total value: $7,012.
• Price range: sales executed across prices from $2.06 to $2.12 (weighted average reported; per-footnote breakdown available on request).
• Shares owned after transaction: Not specified in the provided filing.
• Notable footnotes: F1 — sale was made under a Rule 10b5-1 trading plan adopted Sept 5, 2025; F2 — price is a weighted average across multiple trades.
• Filing timeliness: Filing date and transaction date are the same (Mar 3, 2026), so the report appears timely.

Context

• Sales under an established 10b5-1 plan are pre-arranged and common for insiders to manage holdings or diversify; they do not necessarily reflect the insider’s current view of the company.
• This was a straightforward share sale (no option exercise, no award, no gift, and no tax-withholding event reported).