SCHEDULE 13G/A

BIOATLA INC

Common Stock, $0.0001 par value per share · CUSIP: 09077B104

Event date: 2025-05-15

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: 2,162,205.00 · Class: 3.7%

• ACORN BIOVENTURES 2, L.P.

  Shares: 2,672,906.00 · Class: 4.6%

• ACORN CAPITAL ADVISORS GP, LLC

  Shares: 2,162,205.00 · Class: 3.7%

• Anders Hove

  Shares: 4,835,111.00 · Class: 8.3%

• Acorn Capital Advisors GP 2, LLC

  Shares: 2,672,906.00 · Class: 4.6%

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