Home/Filings/4/0001209191-23-028872
4//SEC Filing

Oyston Ronald 4

Accession 0001209191-23-028872

CIK 0001962918other

Filed

May 10, 8:00 PM ET

Accepted

May 11, 9:00 PM ET

Size

30.7 KB

Accession

0001209191-23-028872

Insider Transaction Report

Form 4
Period: 2023-05-09
Oyston Ronald
Chief People Officer
Transactions
  • Purchase

    Common Stock

    2023-05-09$18.00/sh+1,000$18,0001,000 total
  • Other

    Employee Stock Option (right to buy)

    2023-05-09165,0900 total
    Exercise: $4.04Exp: 2032-01-19Class A Common Stock (165,090 underlying)
  • Purchase

    Common Stock

    2023-05-09$18.00/sh+26$46826 total(indirect: See footnote)
  • Other

    Employee Stock Option (right to buy)

    2023-05-09+165,090165,090 total
    Exercise: $4.04Exp: 2032-01-19Common Stock (165,090 underlying)
  • Other

    Employee Stock Option (right to buy)

    2023-05-092,1500 total
    Exercise: $4.04Exp: 2032-01-19Class A Common Stock (2,150 underlying)
  • Other

    Employee Stock Option (right to buy)

    2023-05-09+2,1502,150 total
    Exercise: $4.04Exp: 2032-01-19Common Stock (2,150 underlying)
  • Other

    Employee Stock Option (right to buy)

    2023-05-0923,4120 total
    Exercise: $5.88Exp: 2032-11-20Class A Common Stock (23,412 underlying)
  • Other

    Employee Stock Option (right to buy)

    2023-05-09+23,41223,412 total
    Exercise: $5.88Exp: 2032-11-20Common Stock (23,412 underlying)
  • Other

    Employee Stock Option (right to buy)

    2023-05-0916,6130 total
    Exercise: $5.88Exp: 2032-11-20Class A Common Stock (16,613 underlying)
  • Other

    Employee Stock Option (right to buy)

    2023-05-09+16,61316,613 total
    Exercise: $5.88Exp: 2032-11-20Common Stock (16,613 underlying)
  • Other

    Employee Stock Option (right to buy)

    2023-05-09131,7140 total
    Exercise: $18.00Exp: 2033-05-03Class A Common Stock (131,714 underlying)
  • Other

    Employee Stock Option (right to buy)

    2023-05-09+131,714131,714 total
    Exercise: $18.00Exp: 2033-05-03Common 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.

Issuer

ACELYRIN, Inc.

CIK 0001962918

Entity typeother

Related Parties

1
  • filerCIK 0001973851

Filing Metadata

Form type
4
Filed
May 10, 8:00 PM ET
Accepted
May 11, 9:00 PM ET
Size
30.7 KB