Alector, Inc.
ALEC- Exchange
- Nasdaq
- Industry
- Biological Products, (No Diagnostic Substances)
- SEC CIK
- 0001653087
Insider trades, last 90 days
0 buys · 3 sells
- Sold $296.09K
- Open-market purchases (P) and sales (S), counted by Form 4 filing.
13F holders, Q2 2026
140
- +2 vs. Q1 2026
- Total value $192.66M
Superinvestors holding ALEC
0
- None of the superinvestors held ALEC at the end of Q2 2026.
Price chart
Latest insider trades
View all: Latest insider tradesOpen-market purchases and sales by ALEC insiders, newest first.
| Filed (ET) | Trade date | Insider | Transaction | Shares | Avg price | Value | Shares after | Holding change | Filing |
|---|---|---|---|---|---|---|---|---|---|
| Sep 4, 20265:45 PM ET | Sep 2 – Sep 4, 2026 | Wong-Sarad GracePrincipal Accounting Officer | SSaleCommon Stock | −9.45K | $2.6112 | −$24.67K | 106.02K | −8.2% | SEC |
| Sep 4, 20265:45 PM ET | Sep 3, 2026 | Berkley Neil LindsayCFO & Chief Business Officer | SSaleCommon Stock | −29.25K | $2.6648 | −$77.95K | 350.65K | −7.7% | SEC |
| Sep 4, 20265:45 PM ET | Sep 3, 2026 | Rosenthal ArnonChief Executive Officer | SSaleCommon Stock | −72.61K | $2.6647 | −$193.47K | 2.29M | −3.1% | SEC |
| Jun 3, 2026 | Jun 2, 2026 | Rosenthal ArnonChief Executive Officer | SSaleCommon Stock | −87.22K | $1.97 | −$171.82K | 2.37M | −3.6% | SEC |
| Jun 3, 2026 | Jun 2 – Jun 3, 2026 | Wong-Sarad GracePrincipal Accounting Officer | SSaleCommon Stock | −9.18K | $1.9359 | −$17.78K | 95.46K | −8.8% | SEC |
Top 5 13F holders, Q2 2026
View all: Top 5 13F holders, Q2 2026The largest institutional positions in ALEC at the end of Q2 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| TCG Crossover Management, LLC | 10,000,000 | $20.1M | 0.48% | 00.0% | Unchanged |
| Nantahala Capital Management, LLC | 8,636,218 | $17.36M | 0.53% | +5,820,235+206.7% | Added |
| BlackRock, Inc. | 7,847,879 | $15.77M | 0.00% | +106,634+1.4% | Added |
| ACADIAN ASSET MANAGEMENT LLC | 4,414,345 | $8.86M | 0.01% | +375,560+9.3% | Added |
| VANGUARD CAPITAL MANAGEMENT LLC | 4,009,340 | $8.06M | 0.00% | +330,618+9.0% | Added |