Paul Peloso - 04 Oct 2023 Form 4 Insider Report for ACELYRIN, Inc. (SLRN)

Role: Chief Medical Officer
Signature: /s/ Mina Kim, Attorney-in-fact
Issuer symbol: SLRN
Transactions as of: 04 Oct 2023
Net transactions value: $0
Form type: 4
Filing time: 06 Oct 2023, 17:55:04 UTC
Previous filing: 18 Aug 2023
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	SLRN	Common Stock	Other	$0	+39,133		$0.000000	39,133	04 Oct 2023	See footnote	F1, F2
holding	SLRN	Common Stock						121,511	04 Oct 2023	Direct

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

Explanation of Responses:

Id	Content
F1	Represents a pro rata, in-kind distribution, and not a purchase or sale of securities, from Woodland Hills Partner LLC (the "LLC") to the Reporting Person, a limited partner of the LLC, without additional consideration. This distribution arises from the purchase of preferred stock by the Reporting Person as a limited partner in the LLC on the same pricing terms as the other participating investors in each round of financing.
F2	Shares held directly by The Peloso Riley Family Trust, 2006, for which the Reporting Person serves as co-trustee.

Content

Represents a pro rata, in-kind distribution, and not a purchase or sale of securities, from Woodland Hills Partner LLC (the "LLC") to the Reporting Person, a limited partner of the LLC, without additional consideration. This distribution arises from the purchase of preferred stock by the Reporting Person as a limited partner in the LLC on the same pricing terms as the other participating investors in each round of financing.

Shares held directly by The Peloso Riley Family Trust, 2006, for which the Reporting Person serves as co-trustee.