<SEC-DOCUMENT>0000950170-23-067444.txt : 20231201
<SEC-HEADER>0000950170-23-067444.hdr.sgml : 20231201
<ACCEPTANCE-DATETIME>20231201202947
ACCESSION NUMBER:		0000950170-23-067444
CONFORMED SUBMISSION TYPE:	144
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20231201
DATE AS OF CHANGE:		20231201

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Alector, Inc.
		CENTRAL INDEX KEY:			0001653087
		STANDARD INDUSTRIAL CLASSIFICATION:	BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES) [2836]
		IRS NUMBER:				822933343
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		144
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	001-38792
		FILM NUMBER:		231461122

	BUSINESS ADDRESS:	
		STREET 1:		131 OYSTER POINT BLVD., SUITE 600
		CITY:			SOUTH SAN FRANCISCO
		STATE:			CA
		ZIP:			94080
		BUSINESS PHONE:		415-231-5660

	MAIL ADDRESS:	
		STREET 1:		131 OYSTER POINT BLVD., SUITE 600
		CITY:			SOUTH SAN FRANCISCO
		STATE:			CA
		ZIP:			94080

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Alector LLC
		DATE OF NAME CHANGE:	20150915

REPORTING-OWNER:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Rosenthal Arnon
		CENTRAL INDEX KEY:			0001757770

	FILING VALUES:
		FORM TYPE:		144

	MAIL ADDRESS:	
		STREET 1:		C/O ALECTOR, INC.
		STREET 2:		151 OYSTER POINT BLVD., #300
		CITY:			SOUTH SAN FRANCISCO
		STATE:			CA
		ZIP:			94080
</SEC-HEADER>
<DOCUMENT>
<TYPE>144
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
<XML>
<?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<headerData>
<submissionType>144</submissionType>
<filerInfo>
<filer>
<filerCredentials>
<cik>0001757770</cik>
<ccc>XXXXXXXX</ccc>
</filerCredentials>
</filer>
<liveTestFlag>LIVE</liveTestFlag>
</filerInfo>
</headerData>
<formData>
<issuerInfo>
<issuerCik>0001653087</issuerCik>
<issuerName>Alector, Inc.</issuerName>
<secFileNumber>001-38792</secFileNumber>
<issuerAddress>
<street1 xmlns="http://www.sec.gov/edgar/common">131 Oyster Point Blvd.</street1>
<street2 xmlns="http://www.sec.gov/edgar/common">Suite 600</street2>
<city xmlns="http://www.sec.gov/edgar/common">South San Francisco</city>
<stateOrCountry xmlns="http://www.sec.gov/edgar/common">CA</stateOrCountry>
<zipCode xmlns="http://www.sec.gov/edgar/common">94080</zipCode>
</issuerAddress>
<issuerContactPhone>(415)-231-5660</issuerContactPhone>
<nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Arnon Rosenthal</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
<relationshipsToIssuer>
<relationshipToIssuer>Officer</relationshipToIssuer>
<relationshipToIssuer>Director</relationshipToIssuer>
</relationshipsToIssuer>
</issuerInfo>
<securitiesInformation>
<securitiesClassTitle>Common Stock</securitiesClassTitle>
<brokerOrMarketmakerDetails>
<name>Morgan Stanley Smith Barney LLC Executive Services</name>
<address>
<street1 xmlns="http://www.sec.gov/edgar/common">200 W Civic Center Dr.</street1>
<street2 xmlns="http://www.sec.gov/edgar/common">4th Floor</street2>
<city xmlns="http://www.sec.gov/edgar/common">Sandy</city>
<stateOrCountry xmlns="http://www.sec.gov/edgar/common">UT</stateOrCountry>
<zipCode xmlns="http://www.sec.gov/edgar/common">84070</zipCode>
</address>
</brokerOrMarketmakerDetails>
<noOfUnitsSold>23831</noOfUnitsSold>
<aggregateMarketValue>132500</aggregateMarketValue>
<noOfUnitsOutstanding>84136381</noOfUnitsOutstanding>
<approxSaleDate>12/04/2023</approxSaleDate>
<securitiesExchangeName>Nasdaq</securitiesExchangeName>
</securitiesInformation>
<securitiesToBeSold>
<securitiesClassTitle>Common Stock</securitiesClassTitle>
<acquiredDate>12/01/2023</acquiredDate>
<natureOfAcquisitionTransaction>Vesting of Restricted Stock Units</natureOfAcquisitionTransaction>
<nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
<isGiftTransaction>N</isGiftTransaction>
<amountOfSecuritiesAcquired>48064</amountOfSecuritiesAcquired>
<paymentDate>12/01/2023</paymentDate>
<natureOfPayment>(1)</natureOfPayment>
</securitiesToBeSold>
<nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
<securitiesSoldInPast3Months>
<sellerDetails>
<name>Arnon Rosenthal</name>
<address>
<street1 xmlns="http://www.sec.gov/edgar/common">C/O Alector, Inc.</street1>
<street2 xmlns="http://www.sec.gov/edgar/common">131 Oyster Point Blvd., Suite 600</street2>
<city xmlns="http://www.sec.gov/edgar/common">South San Francisco</city>
<stateOrCountry xmlns="http://www.sec.gov/edgar/common">CA</stateOrCountry>
<zipCode xmlns="http://www.sec.gov/edgar/common">94080</zipCode>
</address>
</sellerDetails>
<securitiesClassTitle>Common Stock</securitiesClassTitle>
<saleDate>09/05/2023</saleDate>
<amountOfSecuritiesSold>5647</amountOfSecuritiesSold>
<grossProceeds>29333</grossProceeds>
</securitiesSoldInPast3Months>
<remarks>(1) The securities to be sold were received upon the settlement of vested restricted stock units, or RSUs.
The reported shares will be sold to satisfy the reporting person's tax obligations in connection with the vesting of RSUs.</remarks>
<noticeSignature>
<noticeDate>12/01/2023</noticeDate>
<signature>/s/ Jordan Hochstrasser, by power of attorney</signature>
</noticeSignature>
</formData>
</edgarSubmission>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
