Insider · CIK 0001757770
Arnon Rosenthal
Files at ALEC (Alector, Inc.). First filing Dec 3, 2024, latest Sep 4, 2026.
Where the trades landed
Last year at the company this insider has traded most, with each buy and sell on the bar it happened.
ALEC: Alector, Inc.
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
This insider’s open-market buys and sells, scored.
| Score | Company | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 52Moderate | Alector, Inc. | $193k 72,606 shares | -3% | +120% from low-24% from high | |
| 51Moderate | Alector, Inc. | $172k 87,216 shares | -4% | +71% from low-41% from high | |
| 51Moderate | Alector, Inc. | $174k 81,864 shares | -3% | +144% from low-33% from high | |
| 50Moderate | Alector, Inc. | $117k 104,347 shares | -4% | +26% from low-66% from high | |
| 51Moderate | Alector, Inc. | $129k 51,562 shares | -2% | +187% from low-58% from high | |
| 48Moderate | Alector, Inc. | $70k 52,087 shares | -2% | +53% from low-78% from high | |
| 47Moderate | Alector, Inc. | $59k 40,330 shares | -2% | 0% from low-77% from high | |
| 51Moderate | Alector, Inc. | $131k 52,172 shares | -2% | - |
Planned sales
Form 144 notices this insider filed before selling restricted or control stock, newest first.
| Filed | Company | Shares | Value | Sale date | Past 3 months |
|---|---|---|---|---|---|
| May 30, 2025 | ALEC Alector, Inc. | 50,242 0.05% of outstanding | $67k | Jun 2, 2025 | $59k |
| Feb 28, 2025 | ALEC Alector, Inc. | 50,242 0.05% of outstanding | $82k | Mar 3, 2025 | $131k |
| Nov 29, 2024 | ALEC Alector, Inc. | 50,142 0.05% of outstanding | $130k | Dec 2, 2024 | $129k |
Transactions
Every row this insider has filed, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Sep 3, 2026 | ALEC Alector, Inc. | SOpen-market sale Common Stock | -72,606 | $2.66 | $193k | 2,294,600 | 39 d ago |
| Jun 2, 2026 | ALEC Alector, Inc. | SOpen-market sale Common Stock | -87,216 | $1.97 | $172k | 2,367,206 | Jun 3, 2026 |
| Mar 13, 2026 | ALEC Alector, Inc. | AGrant or award Common Stock | +116,246 | $0.00 | $0 | 2,454,422 | Mar 13, 2026 |
| Mar 2, 2026 | ALEC Alector, Inc. | SOpen-market sale Common Stock | -81,864 | $2.12 | $174k | 2,338,176 | Mar 3, 2026 |
| Dec 3, 2025 | ALEC Alector, Inc. | SOpen-market sale Common Stock | -104,347 | $1.12 | $117k | 2,420,040 | Dec 3, 2025 |
| Nov 10, 2025 | ALEC Alector, Inc. | AGrant or award Common Stock | +174,167 | $0.00 | $0 | 2,524,387 | Nov 12, 2025 |
| Nov 10, 2025 | ALEC Alector, Inc. | AGrant or award Employee Stock Option (right to buy)derivative | +522,500 | $0.00 | $0 | 522,500 | Nov 12, 2025 |
| Sep 2, 2025 | ALEC Alector, Inc. | SOpen-market sale Common Stock | -51,562 | $2.50 | $129k | 2,350,220 | Sep 4, 2025 |
| Jul 1, 2025 | ALEC Alector, Inc. | AGrant or award Common Stock | +137,125 | $0.00 | $0 | 2,551,782 | Jul 1, 2025 |
| Jul 1, 2025 | ALEC Alector, Inc. | AGrant or award Employee Stock Option (right to buy)derivative | +45,700 | $0.00 | $0 | 45,700 | Jul 1, 2025 |
| Jun 2, 2025 | ALEC Alector, Inc. | SOpen-market sale Common Stock | -52,087 | $1.34 | $70k | 2,414,657 | Jun 4, 2025 |
| Mar 3, 2025 | ALEC Alector, Inc. | SOpen-market sale Common Stock | -40,330 | $1.47 | $59k | 2,466,744 | Mar 5, 2025 |
| Dec 2, 2024 | ALEC Alector, Inc. | SOpen-market sale Common Stock | -52,172 | $2.52 | $131k | 2,507,074 | Dec 3, 2024 |
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.