Alector, Inc.

For the period ended Dec 31, 2025. Filed Feb 25, 2026.

About this filing

A company's yearly report to the SEC, with audited financial statements. It is the fullest account a company gives of its business, its finances and the risks it sees.

FY2025 · Filed Feb 25, 2026

ALEC$2.53+2.8%Stored close · as of Nov 10, 2026

Extracted filing text, with the paragraph anchors used by the comparison.

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Contents

Consolidated Statements of Stockholders’ Equity

(In thousands, except share data)

Common Stock · Additional Paid-In · Accumulated Other
Shares · Amount · Capital · Comprehensive Income · Accumulated Deficit · Total Stockholders’ Equity
Balance — December 31, 2023	84,879,693	$8		$844,044	$184	$(710,078)	$134,158
Vesting of restricted stock units	3,001,132	—		—	—	—	—
Purchase of common stock under employee stock purchase plan	335,497	—		1,043	—	—	1,043
Issuance of common stock upon public offering, net of issuance costs of $3,892	10,869,566	1		71,107	—	—	71,108
Stock-based compensation	—	—		39,463	—	—	39,463
Unrealized gain on marketable securities	—	—		—	77	—	77
Net loss	—	—		—	—	(119,049)	(119,049)
Balance — December 31, 2024	99,085,888	9		955,657	261	(829,127)	126,800
Exercise of stock options	12,075	—		15	—	—	15
Vesting of restricted stock units	3,962,364	—		—	—	—	—
Issuance of common stock, net of issuance cost of $408	7,110,162	2		19,981	—	—	19,983
Purchase of common stock under employee stock purchase plan	192,092	—		217	—	—	217
Stock-based compensation			26,658			26,658
Unrealized loss on marketable securities	—	—		—	(95)	—	(95)
Net loss	—	—		—	—	(142,929)	(142,929)
Balance — December 31, 2025	110,362,581	$11		$1,002,528	$166	$(972,056)	$30,649

ContentsView on SEC.gov

The text of this filing, as the company filed it with the SEC, without its images or exhibits. This is not investment advice.