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Alector, Inc.

ALEC
Healthcare|Biotechnology|US
$2.29
+0.20 (+9.57%)
Tangible Book / Share
$1.05
Graham Number
$2.96
Cash / Share
$1.25

About

Alector, Inc. operates as a clinical-stage biopharmaceutical company, which engages in pioneering of immuno-neurology. It develops portfolio of innate immune system programs, designed to functionally repair genetic mutations and enable the rejuvenated immune cells to counteract emerging brain pathologies. Its treatment targets immune dysfunction as a root cause of multiple pathologies that are drivers of degenerative brain disorders. The company was founded by Asa Abeliovich, Errik B. Anderson, Tillman U. Gerngross, and Arnon Rosenthal in May 2013 and is headquartered in South San Francisco, CA.

Stock Price

+76.2%(1Y)
1M
+13.4%
3M
+28.7%
6M
+9.0%
YTD
+46.8%
1Y
+74.8%
3Y
-57.0%
5Y
-90.8%

Pipeline Summary

12 total trials
4
Phase 1
6
Phase 2
2
Phase 3
0
Phase 4
Terminated: 5Completed: 6Recruiting: 1

Active Trials (1)

Open-label Extension Study in Participants With Early Alzheimer's Disease
NCT07105709Alzheimer's Disease
Phase 2Recruiting
Enrollment: 220 participants

Key Facts

Market Cap$339.5M
Employees103 (-57% YoY)
CEOArnon Rosenthal
IPO DateFeb 7, 2019
Beta0.61
52-Week Range$1.09 – $2.76
Avg Volume2,555,349
ExchangeNASDAQ

Ownership

Float68.6%
Shares Outstanding148.3M

Recent Insider Trades

Rosenthal ArnonAWARD
Oct 14, 2026217,500 shares
Rosenthal ArnonAWARD
Oct 14, 2026978,750 shares @ $1.88
Rosenthal ArnonAWARD
Oct 13, 2026520,000 shares @ $1.87
Rosenthal ArnonAWARD
Oct 13, 2026500,000 shares @ $1.87
Rosenthal ArnonAWARD
Oct 13, 2026457,038 shares @ $1.87

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Data last updated: Nov 9, 2026, 03:53 AM