Monitor for upcoming earnings or pipeline updates; this level of C-suite selling may signal lack of confidence in near-term prospects, especially given the low stock price. Watch for further selling or any offsetting buy signals.
Price Chart
Executive Summary
Multiple C-suite executives at Alector, Inc. (ALEC) sold shares in the past week, including CEO Arnon Rosenthal and CFO Neil Lindsay Berkley, realizing a combined total of approximately $244,000 in open-market transactions. The sales represent a coordinated cluster of insider selling by top leadership, though the total value remains small relative to the company's $244M market cap.
Key Financial Metrics
Key Facts
- CEO Arnon Rosenthal sold 81,864 shares for $173,822 in open-market transactions.
- CFO Neil Lindsay Berkley sold 29,649 shares for $62,954 in open-market transactions.
- Principal Accounting Officer Grace Wong-Sarad sold 15,517 shares across three days for $34,348 total.
- All transactions were open-market sales (Form 4 codes 'S'), indicating deliberate liquidity events.
- Total value of the insider selling cluster: $271,122 over 7 days.
Financial Impact
$271,122 in insider sales over 7 days, representing 0.11% of ALEC's $244M market cap
Risk Factors
- Insider selling by CEO and CFO can erode investor confidence, particularly in a small-cap biotech with no commercial revenue.
- Proceeds from sales may indicate personal financial needs or broader concerns about company trajectory.
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 1 SEC document filed with EDGAR.
| Document | Accession Number |
|---|---|
| CONTEXT: Insider Cluster Data (5 trades, 7d window) | cluster-ALEC-1772578910982 |
Track record builds as more directional reports settle.
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Oct 26, 2026 today | SC 13G | — | awaiting T+60 | — | — |
Oct 23, 2026 3d ago | SC 13G | $1.84 | awaiting T+60 | — | $1.83 (−0.33%) |
Oct 16, 2026 10d ago | 424B5 | $1.95 | awaiting T+60 | — | $1.83 (+6.15%) |
Oct 16, 2026 10d ago | 8-K | $1.95 | awaiting T+60 | — | $1.83 (+6.15%) |
Oct 14, 2026 12d ago | 8-K | $1.88 | awaiting T+60 | — | $1.83 (−2.66%) |
Oct 5, 2026 21d ago | 8-K | $1.99 | awaiting T+60 | — | $1.83 (−8.04%) |
Oct 5, 2026 21d ago | Press Release | $1.99 | awaiting T+60 | — | $1.83 (−8.04%) |
Sep 18, 2026 5w ago | SC 13G | $1.93 | awaiting T+60 | — | $1.83 (−5.18%) |
Sep 4, 2026 7w ago | Insider Cluster | $2.47 | awaiting T+60 | — | $1.83 (−25.91%) |
Aug 15, 2026 10w ago | Institutional Cluster | $2.05 | awaiting T+60 | — | $1.83 (−10.73%) |
US Market Status
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