Unrecognized Tax Benefits in USD of Alector, Inc. from Q4 2017 to Q4 2024

Taxonomy & unit: us-gaap: USD
Description: Amount of unrecognized tax benefits.
Summary: Alector, Inc. quarterly Unrecognized Tax Benefits history and change rate from Q4 2017 to Q4 2024.
Alector, Inc. Unrecognized Tax Benefits for the quarter ending 31 Dec 2024 was $22,925,000, a 13% increase year-over-year.
Source SEC data: View on sec.gov

Unrecognized Tax Benefits, Quarterly (USD)

Unrecognized Tax Benefits, YoY Quarterly Change (%)

Alector, Inc. Quarterly Unrecognized Tax Benefits (USD)

Period	Value	YoY Chg	Change %	Date	Report	Filed	Fiscal Year	Fiscal Period
Q4 2024	$22,925,000	+$2,721,000	+13%	31 Dec 2024	10-K	26 Feb 2025	2024	FY
Q4 2023	$20,204,000	+$5,066,000	+33%	31 Dec 2023	10-K	26 Feb 2025	2024	FY
Q4 2022	$15,138,000	+$8,199,000	+118%	31 Dec 2022	10-K	26 Feb 2025	2024	FY
Q4 2021	$6,939,000	+$2,347,000	+51%	31 Dec 2021	10-K	27 Feb 2024	2023	FY
Q4 2020	$4,592,000	+$1,557,000	+51%	31 Dec 2020	10-K	28 Feb 2023	2022	FY
Q4 2019	$3,035,000	+$1,528,000	+101%	31 Dec 2019	10-K	24 Feb 2022	2021	FY
Q4 2018	$1,507,000	+$877,000	+139%	31 Dec 2018	10-K	25 Feb 2021	2020	FY
Q4 2017	$630,000			31 Dec 2017	10-K	24 Mar 2020	2019	FY

* An asterisk sign (*) next to the value indicates that the value is likely invalid.