Mina Kim - Mar 17, 2025 Form 4 Insider Report for ACELYRIN, Inc. (SLRN)

Role: Chief Executive Officer, Director
Signature: /s/ Eddie Kim, Attorney-in-fact
Stock symbol: SLRN
Transactions as of: Mar 17, 2025
Transactions value $: -$49,354
Form type: 4
Date filed: 3/19/2025, 06:11 PM
Previous filing: Jan 24, 2025
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	SLRN	Common Stock	Sale	-$49.4K	-18K	-2.61%	$2.74	672K	Mar 17, 2025	Direct	F1, F2

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

Explanation of Responses:

Id	Content
F1	The sale reported on this Form 4 was effected pursuant to the Issuer's policy requiring sell-to-cover to satisfy certain tax obligations of the Reporting Person incurred with the vesting and settlement of certain Restricted Stock Units, and does not represent a discretionary sale by the Reporting Person.
F2	The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices no more than $2.76 and no less than $2.71, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

Content

The sale reported on this Form 4 was effected pursuant to the Issuer's policy requiring sell-to-cover to satisfy certain tax obligations of the Reporting Person incurred with the vesting and settlement of certain Restricted Stock Units, and does not represent a discretionary sale by the Reporting Person.

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices no more than $2.76 and no less than $2.71, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.