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Companies/Alector, Inc.
Company profile

Alector, Inc.

NASDAQ: ALEC · Healthcare · Biotechnology
PublicHQ South San Francisco, CA · San MateoCIK 0001653087Reports USD
#534 of 1,394 Healthcare companies by revenuebottom-quartile growth
EA Score
41D
FH 33DQ 61GM 14SS 59
v0.1 · 65/100 weight · provisional
↑ filing timeliness, workforce scale · ↓ return on equity, revenue growth (YoY)
Methodology →
Revenue TTM
$18.4M
Rev growth YoY (TTM)
-79.2%
Net income (FY)
-$142.9M
Employees
175
Market cap
$228.7M
OverviewFinancialsSegmentsFilingsESGPeople & Places

Financials — latest annual

SEC EDGAR · USD-normalized
ConceptUSDNativeFY
Revenue$21.0M$21.0M2025
Net income-$142.9M-$142.9M2025
Operating income-$156.0M-$156.0M2025
Total assets$293.2M$293.2M2025
Liabilities$262.6M$262.6M2025
Equity$30.6M$30.6M2025

Revenue trend

FY2019 – FY2025 · USD
$2.7M
FY19
$21.2M
FY19
$21.1M
FY20
$207.1M
FY21
$133.6M
FY22
$97.1M
FY23
$100.6M
FY24
$21.0M
FY25

Revenue by segment

Filed disclosures · FY2021
By product
Phase Three License100%
By geography

Not disclosed.

The read

Alector, Inc. booked $21.0M in FY2025 revenue, contracting 79% year over year — slower than 88% of Healthcare companies we track, at a -679.2% net margin.

Peers · Healthcare
Voyager Therapeutics, Inc.53DSenseonics Holdings, Inc.57CSanara MedTech Inc.61CConexeu Sciences Inc.——
Neighbors
San Mateo →
Meta Platforms, Inc.$201.0B87AGilead Sciences, Inc.$29.4B87ARobinhood Markets, Inc.$4.5B67BEquinix, Inc.$9.2B73BElectronic Arts Inc.$7.5B82B+Revolution Medicines, Inc.$052D
Key facts
CEOArnon Rosenthal
SectorHealthcare
IndustryBiotechnology
HeadquartersSouth San Francisco, CA
ExchangeNASDAQ: ALEC
Employees175
IPO date2019-02-07
Latest filings
8-K2026-07-088-K2026-06-178-K2026-05-078-K2026-05-0710-Q2026-05-07DEF 14A2026-04-288-K2026-02-2510-K2026-02-25
Financials: SEC EDGAR (XBRL), USD-normalized per IAS 21 · TTM/quarterly + segments: FMP from filed disclosures · Filings: EDGAR submissions. County headcount and EA Score are in progress — see docs/DATA_GAPS.md.
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