4//SEC Filing
Harper Sean E 4
Accession 0001209191-23-028886
CIK 0001962918other
Filed
May 10, 8:00 PM ET
Accepted
May 11, 9:16 PM ET
Size
18.5 KB
Accession
0001209191-23-028886
Insider Transaction Report
Form 4
ACELYRIN, Inc.SLRN
Harper Sean E
10% Owner
Transactions
- Conversion
Series B Redeemable Convertible Preferred Stock
2023-05-09−2,445,786→ 0 total→ Common Stock (2,445,786 underlying) - Conversion
Series C Redeemable Convertible Preferred Stock
2023-05-09−2,038,148→ 0 total→ Common Stock (2,038,148 underlying) - Conversion
Common Stock
2023-05-09+8,540,729→ 8,540,729 total - Purchase
Common Stock
2023-05-09$18.00/sh+1,250,000$22,500,000→ 9,790,729 total - Conversion
Series A Redeemable Convertible Preferred Stock
2023-05-09−4,056,795→ 0 total→ Common Stock (4,056,795 underlying)
Westlake BioPartners Fund II, L.P.
10% Owner
Transactions
- Conversion
Common Stock
2023-05-09+8,540,729→ 8,540,729 total - Purchase
Common Stock
2023-05-09$18.00/sh+1,250,000$22,500,000→ 9,790,729 total - Conversion
Series A Redeemable Convertible Preferred Stock
2023-05-09−4,056,795→ 0 total→ Common Stock (4,056,795 underlying) - Conversion
Series B Redeemable Convertible Preferred Stock
2023-05-09−2,445,786→ 0 total→ Common Stock (2,445,786 underlying) - Conversion
Series C Redeemable Convertible Preferred Stock
2023-05-09−2,038,148→ 0 total→ Common Stock (2,038,148 underlying)
Westlake BioPartners GP II, LLC
10% Owner
Transactions
- Conversion
Common Stock
2023-05-09+8,540,729→ 8,540,729 total - Purchase
Common Stock
2023-05-09$18.00/sh+1,250,000$22,500,000→ 9,790,729 total - Conversion
Series A Redeemable Convertible Preferred Stock
2023-05-09−4,056,795→ 0 total→ Common Stock (4,056,795 underlying) - Conversion
Series B Redeemable Convertible Preferred Stock
2023-05-09−2,445,786→ 0 total→ Common Stock (2,445,786 underlying) - Conversion
Series C Redeemable Convertible Preferred Stock
2023-05-09−2,038,148→ 0 total→ Common Stock (2,038,148 underlying)
Footnotes (6)
- [F1]Represents shares of Common Stock received upon conversion of shares of the reported series of preferred stock on a one-for-one basis without payment of further consideration.
- [F2]Shares held directly by Westlake BioPartners Fund II, L.P., or Westlake Fund II. Westlake BioPartners GP II, LLC, or Westlake GP II, is the general partner of Westlake Fund II. Westlake GP II may be deemed to have sole voting and dispositive power with regard to the shares held directly by Westlake Fund II. Beth C. Seidenberg and Sean E. Harper are the Managing Directors of Westlake GP II and share voting and dispositive power over the shares held by Westlake Fund II, each of whom disclaims beneficial ownership of the shares held by Westlake Fund II except to the extent of such person's pecuniary interest therein, if any.
- [F3]This report on Form 4 is jointly filed by Westlake Fund II, Westlake GP II and Sean E. Harper. Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Rule 16a-1(a) under the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of such person's or entity's pecuniary interest therein, if any. Westlake Fund II has designated a representative, Beth C. Seidenberg, a Managing Director of Westlake GP II, to serve on the Issuer's board of directors. This report shall not be deemed an admission that any such entity or person is a beneficial owner of such securities for the purposes of Section 16 of the Exchange Act, or for any other purpose.
- [F4]Represents shares of Common Stock purchased in the Issuer's initial public offering of Common Stock (the "IPO").
- [F5]Each share of preferred stock is convertible into one share of Common Stock and has no expiration date. Immediately prior to the completion of the IPO, all shares of preferred stock automatically converted into shares of Common Stock.
- [F6]Each share of Class A Common Stock was reclassified into one share of Common Stock immediately prior to the completion of the IPO.
Documents
Issuer
ACELYRIN, Inc.
CIK 0001962918
Entity typeother
Related Parties
1- filerCIK 0001541946
Filing Metadata
- Form type
- 4
- Filed
- May 10, 8:00 PM ET
- Accepted
- May 11, 9:16 PM ET
- Size
- 18.5 KB