SCHEDULE 13G

JASPER THERAPEUTICS INC

Common Stock, $0.001 Par Value · CUSIP: 471871202

Event date: 2025-12-01

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

• ACORN BIOVENTURES, L.P.

  Shares: 750,326.00 · Class: 2.7%

• ACORN CAPITAL ADVISORS GP, LLC

  Shares: 750,326.00 · Class: 2.7%

• ACORN BIOVENTURES 2, L.P.

  Shares: 1,036,166.00 · Class: 3.7%

• Acorn Capital Advisors GP 2, LLC

  Shares: 1,036,166.00 · Class: 3.7%

• Anders Hove

  Shares: 1,786,492.00 · Class: 6.4%

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