SCHEDULE 13D/A

Sera Prognostics Inc

Class A Common Stock · CUSIP: 81749D107

Event date: 2025-02-11

Reporting persons may disclose overlapping interests. Their amounts are shown individually and are not added into a filing total.

Filing-level shares

Unavailable

Percent of class

Unavailable

• Chione Ltd.Reported CIK 0001590232

  Shares: 2,605,351.00 · Class: 7.6%

• Marcin Czernik

  Shares: 2,605,351.00 · Class: 7.6%

• Andreas Hadjimichael

  Shares: 2,605,351.00 · Class: 7.6%

• Anastasis Nikolaou

  Shares: 2,605,351.00 · Class: 7.6%

• Wiaczeslaw Smolokowski

  Shares: 2,605,351.00 · Class: 7.6%

Amounts are as disclosed in this filing. Schedule type alone does not establish investment intent.