SCHEDULE 13G/A

CAMP4 Therapeutics Corp.

Common Stock, par value $0.0001 per share · CUSIP: 13463J101

Event date: 2025-12-31

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

• Vivo Opportunity Fund Holdings, L.P.

  Shares: 3,856,991.00 · Class: 7.4%

• Vivo Opportunity, LLC

  Shares: 3,856,991.00 · Class: 7.4%

• Vivo Opportunity Cayman Fund, L.P.

  Shares: 389,577.00 · Class: 0.8%

• Vivo Opportunity Cayman, LLC

  Shares: 389,577.00 · Class: 0.8%

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