Over the last 12 months, Alector insiders reported no purchases and 4 sales totaling $228K across SEC Form 4 filings. 25% of the activity was filed under pre-arranged 10b5-1 trading plans.
| Date | Insider | Type | Shares | Avg price | Value | Δ stake | Marks |
|---|---|---|---|---|---|---|---|
| Jun 3, 2026 | Wong-Sarad GracePrincipal Accounting Officer · O | ▼ Sale | 3,475 | $1.88 | $7K | -3.5% | plan |
| Jun 2, 2026 | Rosenthal ArnonChief Executive Officer · O·D | ▼ Sale | 87,216 | $1.97 | $172K | -3.6% | — |
| Jun 2, 2026 | Wong-Sarad GracePrincipal Accounting Officer · O | ▼ Sale | 5,709 | $1.97 | $11K | -5.5% | — |
| Jun 2, 2026 | Berkley Neil LindsayCFO & Chief Business Officer · O | ▼ Sale | 19,360 | $1.97 | $38K | -4.8% | — |
Corporate insiders — officers, directors and 10%+ owners — must report their trades to the SEC on Form 4 within two business days. We group each filing's transactions into one economic event (a laddered 10b5-1 sale is one event, not 25 rows), flag pre-arranged plans and late filings, and link every event to its AI-scored article in the $ALEC feed.