ALEC Alector, Inc.
Price Chart
Executive Summary
CEO Arnon Rosenthal and CFO Neil Berkley sold a combined $210K in open-market sales on June 2, 2026, with the CEO alone accounting for $172K. The cluster represents ~0.1% of Alector's $216M market cap, falling at the trivial-to-modest threshold. Historical calibration on this ticker shows poor predictive accuracy (25% win rate at T+20), and the dollar amount is too small to signal material insider concern.
Key Financial Metrics
Actionable Insight
The dollar amount is too small relative to market cap to be material. Monitor for any upcoming 8-K filings (earnings, pipeline updates, or financing) that could explain the timing, but the cluster alone does not warrant a bearish stance.
Key Facts
- CEO Arnon Rosenthal sold 87,216 shares at $1.97 for $172K on June 2, 2026
- CFO Neil Berkley sold 19,360 shares at $1.97 for $38K on June 2, 2026
- Total cluster value of $210K represents ~0.1% of Alector's $216M market cap
- Principal Accounting Officer Grace Wong-Sarad also sold 9,184 shares ($18K) on June 2-3, 2026
- All sales were open-market transactions; no 10b5-1 plan designation noted
Financial Impact
Total insider sales of $228K over the cluster window, representing ~0.1% of market cap
Risk Factors
- CEO selling 87K shares could be perceived negatively by retail investors despite small relative size
- No 10b5-1 plan disclosed — sales may be opportunistic rather than scheduled
- Historical calibration shows model has been directionally wrong on ALEC (25% win rate at T+20)
Market Snapshot
Documents Analyzed
This report is based on 1 SEC document filed with EDGAR.
| Document | Accession Number |
|---|---|
| CLUSTER Data (Synthetic) | cluster-ALEC-1780522247847 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
|
Jun 11, 2026
3d ago
|
Institutional Cluster
| $1.53 awaiting T+1 | awaiting T+1 | — | $1.53 (−0.00%) |
|
Jun 3, 2026
11d ago
|
Insider Cluster
| $1.81 $1.64 | ▼ −9.67% | ▼ −7.07% | $1.53 (−15.47%) |
|
May 7, 2026
5w ago
|
8-K
| $2.10 $2.05 | ▲ +2.38% | ▲ +2.61% | $1.53 (+27.14%) |
|
Mar 12, 2026
13w ago
|
S-3
| $2.20 $2.21 | ▼ −0.45% | ▲ +0.57% | $1.53 (+30.45%) |
|
Mar 2, 2026
15w ago
|
Insider Cluster
| $2.21 $2.11 | ▲ +4.52% | ▲ +3.61% | $1.53 (+30.77%) |
|
Feb 26, 2026
15w ago
|
Insider Cluster
| $2.56 $2.43 | ▼ −5.08% | ▼ −4.63% | $1.53 (−40.23%) |
US Market Status
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