Stocks · Health care · Biological Products, (No Diagnostic Substances)

Alector, Inc.

ALEC Clue Score15

United States Fiscal year ends December CIK 0001653087 Results filed 5 Nov 2026

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What the insiders did Net selling

By person

24 insiders · 255 transactions

Insider

Role

Bought

Sold

Net

Holding

Of company

Worth

Change

Orbimed Advisors LLC entity

10% owner

$7.82M (3)

$116.23M (41)

−$108.41M

1,906,718

1.71%

$4.78M

—

Arnon Rosenthal

Chief Executive Officer

—

$22.48M (41)

−$22.48M

4,517,100

4.05%

$11.33M

+13.5%

Robert Paul

Chief Medical Officer

—

$13.17M (58) scheduled

−$13.17M

234,319

0.2099%

$587.86K

−30.2%

Carl L Gordon

Director

$7.82M (3)

—

+$7.82M

203,200

0.1820%

$509.79K

—

Calvin Yu

Vice President, Finance

—

$6.69M (10) scheduled

−$6.69M

76,686

0.0687%

$192.39K

−57.3%

Shehnaaz Suliman

President and COO

—

$6.65M (8) scheduled

−$6.65M

102,598

0.0919%

$257.40K

+3,849%

Robert King

Chief Development Officer

—

$3.29M (14) scheduled

−$3.29M

550,871

0.4934%

$1.38M

+2.5%

Terrance McGuire

Director

—

$3.14M (2)

−$3.14M

36,620,824

32.80%

$91.87M

+42.6%

Polaris Venture Management Co. VI, L.L.C. entity

10% owner

—

$3.14M (2)

−$3.14M

35,565,828

31.85%

$89.23M

+38.3%

Richard H Scheller

Director

—

$2.39M (5) scheduled

−$2.39M

134,899

0.1208%

$338.43K

+575.1%

Sabah Oney

Chief Business Officer

—

$1.95M (11) scheduled

−$1.95M

573,918

0.5140%

$1.44M

−3.4%

Sara Kenkare-Mitra

President and Head of R&D

—

$663.18K (12)

−$663.18K

501,652

0.4493%

$1.26M

—

David M. Wehner

Director

$500.00K (1)

—

+$500.00K

115,330

0.1033%

$289.34K

—

Gary Romano

Chief Medical Officer

—

$312.15K (11)

−$312.15K

332,977

0.2982%

$835.37K

—

Neil Lindsay Berkley

CFO & Chief Business Officer

—

$260.39K (5)

−$260.39K

395,216

0.3540%

$991.52K

+9.1%

Marc Grasso

Chief Financial Officer

—

$247.75K (10)

−$247.75K

296,072

0.2652%

$742.79K

—

Grace Wong-Sarad

Principal Accounting Officer

—

$113.83K (13)

−$113.83K

161,570

0.1447%

$405.35K

+47.7%

Paula Hammond

Director

—

$86.18K (2) scheduled

−$86.18K

103,609

0.0928%

$259.93K

—

Kristine Yaffe

Director

—

$26.75K (2) scheduled

−$26.75K

124,109

0.1112%

$311.36K

—

Tillman U. Gerngross

Director

—

—

—

2,644,319

2.37%

$6.63M

+21.2%

Louis J Lavigne Jr

Director

—

—

—

138,661

0.1242%

$347.87K

—

Elizabeth A. Garofalo

Director

—

—

—

118,650

0.1063%

$297.67K

—

Errol B Desouza

Director

—

—

—

98,650

0.0884%

$247.49K

—

Mark Altmeyer

Director

—

—

—

98,650

0.0884%

$247.49K

—