Ronald Oyston - May 4, 2023 Form 3 Insider Report for ACELYRIN, Inc. (SLRN)

Role
Chief People Officer
Signature
/s/ Mina Kim, Attorney-in-fact
Stock symbol
SLRN
Transactions as of
May 4, 2023
Transactions value $
$0
Form type
3
Date filed
5/4/2023, 07:04 PM
Next filing
May 11, 2023

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
holding SLRN Employee Stock Option (right to buy) May 4, 2023 Class A Common Stock 165K $4.04 Direct F1, F2
holding SLRN Employee Stock Option (right to buy) May 4, 2023 Class A Common Stock 2.15K $4.04 Direct F2, F3
holding SLRN Employee Stock Option (right to buy) May 4, 2023 Class A Common Stock 23.4K $5.88 Direct F2, F4
holding SLRN Employee Stock Option (right to buy) May 4, 2023 Class A Common Stock 16.6K $5.88 Direct F2, F5
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 1/4 of the shares subject to the option vested on November 1, 2022, and 1/48 of the shares subject to the option vests in equal monthly installments thereafter, subject to the Reporting Person's continued service.
F2 Each share of Class A Common Stock shall be reclassified into one share of Common Stock immediately prior to the completion of the Issuer's initial public offering of Common Stock.
F3 1/4 of the shares subject to the option vested on January 20, 2023, and 1/48 of the shares subject to the option vest in equal monthly installments thereafter, subject to the Reporting Person's continued service.
F4 1/4 of the shares subject to the option vest on October 1, 2023, and 1/48 of the shares subject to the option vests in equal monthly installments thereafter, subject to the Reporting Person's continued service.
F5 1/4 of the shares subject to the option vest on November 17, 2023, and 1/48 of the shares subject to the option vests in equal monthly installments thereafter, subject to the Reporting Person's continued service.

Remarks:

Exhibit 24 - Power of Attorney