BlackRock, Inc.

Holdings History for Alector, Inc. - Common Stock, par value $0.0001 per share (ALEC)

Symbol: ALEC on Nasdaq
Investment type: Equity / Common Stock, par value $0.0001 per share
Latest Disclosed Shares Owned: 5,201,092 shares
Security Ownership %: 5.1%

Shares, Excluding Options vs Price

Value, Excluding Options

BlackRock, Inc. ownership in Alector, Inc. Common Stock, par value $0.0001 per share (ALEC)

17 Oct 2025 - BlackRock, Inc. has filed an SCHEDULE 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 5,201,092 shares of Alector, Inc. Common Stock, par value $0.0001 per share (ALEC). This represents 5.1% ownership of the company. In their previous filing dated 17 Apr 2025, BlackRock, Inc. had reported owning 6,116,564 shares, indicating a decrease of +15%. .

Reporting Name	Ownership %	Change	Value $	Shares owned	Change	Activity %	Price	Form	Report date	Filing time
BlackRock, Inc.	5.1%	-18%	$15,395,232	5,201,092	-915,472	-15%	$2.96	13G/A	30 Sep 2025	17 Oct 2025, 18:40
BlackRock, Inc.	6.2%		$6,177,730	6,116,564			$1.01	13G/A	31 Mar 2025	17 Apr 2025, 09:35

Holdings date	Weight	Change	Value $	Shares	Change	Activity %	Price	All Holders
30 Sep 2025	0%	-0%	$21,305,999	7,197,973	-775,607	-9.7%	$2.96	Q3 2025
30 Jun 2025	0%	-0%	$11,163,012	7,973,580	-306,122	-3.7%	$1.40	Q2 2025
31 Mar 2025	0%	-0%	$10,184,035	8,279,702	-857,045		$1.23	Q1 2025
31 Dec 2024	0%	-0%	$17,268,452	9,136,747	-215,297	-2.3%	$1.89	Q4 2024
30 Sep 2024	0%	0%	$43,580,526	9,352,044	0		$4.66	Q3 2024

* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.