SCHEDULE 13G

MEREO BIOPHARMA GROUP PLC

Ordinary Shares, par value GBP 0.003 per share · CUSIP: 589492107

Event date: 2025-06-04

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

• Northpond Ventures, LP

  Shares: 35,223,695.00 · Class: 4.4%

• Northpond Ventures GP, LLC

  Shares: 35,223,695.00 · Class: 4.4%

• Northpond Ventures II, LP

  Shares: 16,454,455.00 · Class: 2.1%

• Northpond Ventures II GP, LLC

  Shares: 16,454,455.00 · Class: 2.1%

• NPV Listed, LLC

  Shares: 2,842,850.00 · Class: 0.4%

• Northpond Ventures, LLC

  Shares: 2,842,850.00 · Class: 0.4%

• Michael P. Rubin

  Shares: 54,521,000.00 · Class: 6.9%

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