GRAIL (GRAL) CFO Aaron Freidin Sells 4,100 Shares

What Happened
Aaron Freidin, Chief Financial Officer of GRAIL, sold a total of 4,100 shares in open‑market transactions on September 21, 2026, for aggregate proceeds of $382,679. The sales broken out in the filing are: 1,779 shares at $92.26 ($164,136); 1,800 shares at $93.92 ($169,048); and 521 shares at $95.00 ($49,495). These were sales (not purchases).

Key Details

• Transaction date: 2026-09-21; Form 4 filed: 2026-09-23 (filed within the standard 2-business‑day window).
• Prices/notes: one lot reported at a weighted avg ~$92.26 (sales in range $92.19–$93.00); another at a weighted avg ~$93.92 (sales in range $93.89–$94.33); the 521-share lot reported at $95.00. Per the filing, the reporting person will provide a breakdown of individual sale prices within those ranges upon request.
• Total shares sold: 4,100; total proceeds: $382,679.
• Shares owned after transaction: not disclosed in the provided filing.
• Notable footnotes: F1 — sales were made pursuant to a Rule 10b5‑1 trading plan adopted Dec 11, 2025; F2/F3 — the reported prices for two lots are weighted averages covering stated price ranges.

Context
Sales executed under a 10b5‑1 plan are pre‑arranged trades that allow insiders to sell shares on a scheduled basis and therefore do not necessarily indicate a change in the insider’s view of the company. For retail investors, purchases generally carry more direct signals than routine sales; this filing documents a planned disposals by the CFO rather than an opportunistic open‑market purchase.