Gil M. Labrucherie - May 23, 2024 Form 4 Insider Report for ACELYRIN, Inc. (SLRN)

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	SLRN	Employee Stock Option (right to buy)	Award	$0	+184K		$0.00	184K	May 23, 2024	Common Stock	184K	$4.22	Direct	F1

Showing 1 to 1 of 1 entries

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

Id	Content
F1	33% of the shares subject to the option vest on December 15, 2024, 34% of the shares subject to the option vest on June 15, 2025, and the remaining 33% of the shares subject to the option vest on December 15, 2025, subject to the Reporting Person's continued service.