SCHEDULE 13G/A

DIANTHUS THERAPEUTICS INC COM

Common Stock, $0.001 par value per share · CUSIP: 252828108

Event date: 2025-06-30

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

• Venrock Healthcare Capital Partners III, L.P.

  Shares: 1,000,000.00 · Class: 3.1%

• VHCP Co-Investment Holdings III, LLC

  Shares: 1,000,000.00 · Class: 3.1%

• Venrock Healthcare Capital Partners EG, L.P.

  Shares: 1,000,000.00 · Class: 3.1%

• VHCP Management III, LLC

  Shares: 1,000,000.00 · Class: 3.1%

• VHCP Management EG, LLC

  Shares: 1,000,000.00 · Class: 3.1%

• Nimish Shah

  Shares: 1,000,000.00 · Class: 3.1%

• Bong Y. Koh

  Shares: 1,000,000.00 · Class: 3.1%

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