Open Insider Trading Activity for Alector, Inc. Chief Executive Officer Rosenthal Arnon
31-day price and insider activity (up to 2 years)
Daily candles with triangles for the buy and sale transactions shown below. Scroll left or zoom out to load earlier candles (up to 2 years).
▲ Insider buy
▼ Insider sale
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Charting by TradingView Lightweight Charts
| Ticker | Filing Date | Transaction Date | Company | Insider | Title | Transaction | Trade Count | Shares | Avg. Price | Total Value | Position Size Change | SEC Filing |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Tax liability coverage transfers: shares are often sold to offset the tax liability from shares vesting ALEC | 2026-06-03 | 2026-06-02 | Alector, Inc. | Rosenthal Arnon | Chief Executive Officer | Sell | 1 | 87,216 | $1.97 | $171,815.52 | 3.55% | View Filing |
| Tax liability coverage transfers: shares are often sold to offset the tax liability from shares vesting ALEC | 2026-03-03 | 2026-03-02 | Alector, Inc. | Rosenthal Arnon | Chief Executive Officer | Sell | 1 | 81,864 | $2.12 | $173,551.68 | 3.38% | View Filing |
| Tax liability coverage transfers: shares are often sold to offset the tax liability from shares vesting ALEC | 2025-12-03 | 2025-12-03 | Alector, Inc. | Rosenthal Arnon | Chief Executive Officer | Sell | 1 | 104,347 | $1.12 | $116,868.64 | 4.13% | View Filing |