Alector, Inc. (ALEC) Insider Trading

Over the last 3 months, ALEC insiders made 0 open-market buys and 1 sale, a net sale of -$5K (SEC Form 4). Over the last 6 months, 86 institutions increased and 81 reduced their position (13F).

Insider Activity

Sentiment
0/100
Buys (3m)
0
Sells (3m)
1
Net (3m)
-$4.8K
Insider trades by month Buys Sells
Aug
Sep
Dec
Feb
Mar
Apr
Context3-month price -6.5%Institutions mixed (13F)
DateInsiderTypeSharesPrice
Jun 17, 2026Hammond PauladirectorGrant9,450
Jun 17, 2026SCHELLER RICHARD HdirectorGrant28,700
Jun 17, 2026DESOUZA ERROL BdirectorGrant9,450
Jun 17, 2026Altmeyer MarkdirectorGrant9,450
Jun 17, 2026Hammond PauladirectorGrant28,700
Jun 17, 2026LAVIGNE LOUIS J JRdirectorGrant9,450
Jun 17, 2026Altmeyer MarkdirectorGrant28,700
Jun 17, 2026GAROFALO ELIZABETH A.directorGrant28,700
Jun 17, 2026DESOUZA ERROL BdirectorGrant28,700
Jun 17, 2026Yaffe KristinedirectorGrant9,450
Jun 17, 2026LAVIGNE LOUIS J JRdirectorGrant28,700
Jun 17, 2026SCHELLER RICHARD HdirectorGrant9,450
Jun 17, 2026Yaffe KristinedirectorGrant28,700
Jun 17, 2026GAROFALO ELIZABETH A.directorGrant9,450
Jun 3, 2026SCHELLER RICHARD HdirectorGrant10,833
Apr 17, 2026Wong-Sarad Graceofficer: Principal Accounting OfficerSell1,820$2.65
Mar 13, 2026Rosenthal Arnondirector, officer: Chief Executive OfficerGrant116,246
Mar 13, 2026Berkley Neil Lindsayofficer: CFO & Chief Business OfficerGrant54,600
Mar 12, 2026Wong-Sarad Graceofficer: Principal Accounting OfficerSell1,000$2.65
Mar 3, 2026Wong-Sarad Graceofficer: Principal Accounting OfficerSell3,367$2.08
Feb 26, 2026Wong-Sarad Graceofficer: Principal Accounting OfficerSell4,079$2.50
Dec 8, 2025Wong-Sarad Graceofficer: Principal Accounting OfficerSell4,753$1.21
Dec 3, 2025Wong-Sarad Graceofficer: Principal Accounting OfficerSell8,056$1.12
Dec 3, 2025Berkley Neil Lindsayofficer: Chief Bus Ofcr & Interim CFOSell37,261$1.12
Dec 3, 2025Kenkare-Mitra Saraofficer: President and Head of R&DSell41,687$1.12
Dec 3, 2025Rosenthal Arnondirector, officer: Chief Executive OfficerSell104,347$1.12
Nov 12, 2025Rosenthal Arnondirector, officer: Chief Executive OfficerGrant522,500$1.31
Nov 12, 2025Wong-Sarad Graceofficer: Principal Accounting OfficerGrant32,343
Nov 12, 2025Rosenthal Arnondirector, officer: Chief Executive OfficerGrant174,167
Nov 12, 2025Berkley Neil Lindsayofficer: Chief Bus Ofcr & Interim CFOGrant195,000$1.31

Source: ALEC SEC Form 4 filings, latest Jun 17, 2026. For informational purposes only — not investment advice.

Institutional activity (13F)

How institutions changed their ALEC positions over the last 6 months (SEC Form 13F).

Increased
86
New positions
52
Reduced
81
Sold out
62
Largest moves
InstitutionActionSharesFiled
TCG CROSSOVER MANAGEMENT, LLCNew Position10.0MFeb 17, 2026
TCG CROSSOVER MANAGEMENT, LLCUnchanged10.0MMay 15, 2026
BLACKROCK, INC.Increased7.7MMay 13, 2026
VANGUARD CAPITAL MANAGEMENT LLCNew Position7.4MMay 15, 2026
BLACKROCK, INC.Reduced7.1MFeb 12, 2026
VANGUARD GROUP INCIncreased6.9MJan 29, 2026
ACADIAN ASSET MANAGEMENT LLCIncreased4.0MMay 13, 2026
FORESITE CAPITAL MANAGEMENT IV, LLCNew Position3.9MFeb 17, 2026
FORESITE CAPITAL MANAGEMENT IV, LLCUnchanged3.9MMay 15, 2026
MERCK & CO., INC.Unchanged3.5MFeb 17, 2026
MERCK & CO., INC.Unchanged3.5MMay 13, 2026
ACADIAN ASSET MANAGEMENT LLCIncreased3.4MFeb 10, 2026
683 CAPITAL MANAGEMENT, LLCIncreased3.4MFeb 17, 2026
D. E. SHAW & CO., INC.Increased3.3MMay 15, 2026
BALYASNY ASSET MANAGEMENT L.P.New Position3.3MFeb 17, 2026

Source: SEC Form 13F filings. For informational purposes only — not investment advice.