Companies / Alector, Inc.

Alector, Inc.

Nasdaq: ALECCIK 1653087SOUTH SAN FRANCISCO, CAalector.com ↗

Financials · FY2025

Revenue$21.05M
Net income$-142.93M
Total debt$1.48M
Cash$59.91M
Diluted EPS$-1.39
Shares outstanding111.7M

Ownership

111.7M shares outstanding · as of Jul 31, 2026
3.0%Insiders
Ownership
Insiders2.97%3,321,805
10%+ / strategic10.83%12,087,859
Institutions64.02%71,479,769
Public float22.18%24,767,486

% of common shares outstanding (exact, from the latest cover-page filing). Institutions are quarterly 13F snapshots; insiders reflect current officers & directors.

Insiders 6

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Insider% of sharesShares
Arnon RosenthalCEOChief Executive Officer · Director
2.20%2,454,422
Berkley Neil LindsayCFO & Chief Business Officer
0.36%399,260
Scheller Richard HDirector
0.12%134,899
Lavigne Louis J JrDirector
0.11%128,109
Wong-Sarad GracePrincipal Accounting Officer
0.10%106,465
Desouza Errol BDirector
0.09%98,650

Institutional holders 134

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HolderValue% of shares
BlackRock, Inc.$15.77M7.03%
TCG Crossover Management, LLC$15.60M8.96%
Vanguard Group Inc$10.78M6.19%
D. E. Shaw & Co., Inc.$7.17M2.98%
Merck & Co., Inc.$7.13M3.18%
Balyasny Asset Management L.P.$6.31M2.63%
Foresite Capital Management IV, LLC$6.06M3.48%
683 Capital Management, LLC$5.23M3.00%
Geode Capital Management, LLC$4.92M2.05%
Millennium Management LLC$4.26M1.77%

Activity

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InsidersInstitutions
What insiders are doing in this stock (Form 4).
DateActorActionSecurityValueShares ΔPosition afterImpact
Mar 2, 2026Arnon Rosenthal
CEO
SellCommon Stock$173.8K-82K
-3.38%
2,338,176
2.09% of shares
medium
Mar 2, 2026Berkley Neil Lindsay
Executive
SellCommon Stock$63.0K-30K
-7.92%
344,660
0.31% of shares
low
Mar 2, 2026Wong-Sarad Grace
Executive
SellCommon Stock$17.1K-8K
-6.79%
110,832
0.10% of shares
low
Feb 26, 2026Wong-Sarad Grace
Executive
SellCommon Stock$10.2K-4K
-3.32%
118,903
0.11% of shares
low
Mar 3, 2026Wong-Sarad Grace
Executive
SellCommon Stock$7.0K-3K
-3.04%
107,465
0.10% of shares
low
Mar 10, 2026Wong-Sarad Grace
Executive
SellCommon Stock$2.6K-1K
-0.93%
106,465
0.10% of shares
low
Jun 17, 2026Scheller Richard H
Director
GrantCommon Stock$0+29K
+27.02%
134,899
0.12% of shares
low
Jun 1, 2026Scheller Richard H
Director
GrantCommon Stock$0+11K
+11.36%
106,199
0.10% of shares
low

5%+ ownership events

Schedule 13D / 13G
FilerStance% of classSharesDate
Vanguard Group IncPassive13G/A—6,908,054—
Vanguard Group IncPassive13G/A—0—
RTW Investments, LPPassive13G/A———
BlackRock, Inc.Passive13G/A—5,179,805—
Arnon RosenthalPassive13G/A———

Securities

via CUSIP / OpenFIGI
SymbolTypeMarketCUSIPFIGI
ALEC——014442107—