Oyston Ronald 4

4 · ACELYRIN, Inc. · Filed May 11, 2023

Insider Transaction Report

Form 4

Period: 2023-05-09

ACELYRIN, Inc.SLRN

Oyston Ronald

Chief People Officer

Transactions

Purchase
Common Stock
2023-05-09$18.00/sh+1,000$18,000→ 1,000 total
Other
Employee Stock Option (right to buy)
2023-05-09−165,090→ 0 total
Exercise: $4.04Exp: 2032-01-19→ Class A Common Stock (165,090 underlying)
Purchase
Common Stock
2023-05-09$18.00/sh+26$468→ 26 total(indirect: See footnote)
Other
Employee Stock Option (right to buy)
2023-05-09+165,090→ 165,090 total
Exercise: $4.04Exp: 2032-01-19→ Common Stock (165,090 underlying)
Other
Employee Stock Option (right to buy)
2023-05-09−2,150→ 0 total
Exercise: $4.04Exp: 2032-01-19→ Class A Common Stock (2,150 underlying)
Other
Employee Stock Option (right to buy)
2023-05-09+2,150→ 2,150 total
Exercise: $4.04Exp: 2032-01-19→ Common Stock (2,150 underlying)
Other
Employee Stock Option (right to buy)
2023-05-09−23,412→ 0 total
Exercise: $5.88Exp: 2032-11-20→ Class A Common Stock (23,412 underlying)
Other
Employee Stock Option (right to buy)
2023-05-09+23,412→ 23,412 total
Exercise: $5.88Exp: 2032-11-20→ Common Stock (23,412 underlying)
Other
Employee Stock Option (right to buy)
2023-05-09−16,613→ 0 total
Exercise: $5.88Exp: 2032-11-20→ Class A Common Stock (16,613 underlying)
Other
Employee Stock Option (right to buy)
2023-05-09+16,613→ 16,613 total
Exercise: $5.88Exp: 2032-11-20→ Common Stock (16,613 underlying)
Other
Employee Stock Option (right to buy)
2023-05-09−131,714→ 0 total
Exercise: $18.00Exp: 2033-05-03→ Class A Common Stock (131,714 underlying)
Other
Employee Stock Option (right to buy)
2023-05-09+131,714→ 131,714 total
Exercise: $18.00Exp: 2033-05-03→ Common Stock (131,714 underlying)

Footnotes (8)

[F1]Reflects shares purchased through a directed share program in the Issuer's initial public offering of Common Stock (the "IPO").
[F2]The shares are held of record by the Reporting Person's child.
[F3]Each share of Class A Common Stock was reclassified into one share of Common Stock immediately prior to the completion of the IPO.
[F4]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.
[F5]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.
[F6]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.
[F7]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.
[F8]1/4 of the shares subject to the option vest on May 4, 2024, and 1/48 of the shares subject to the option vest in equal monthly installments thereafter, subject to the Reporting Person's continued service.

Documents

1 file

4
doc4.xmlPrimary
FORM 4 SUBMISSION