SCHEDULE 13G/A

ON HLDG AG

Class A ordinary shares, par value CHF 0.10 per share · CUSIP: H5919C104

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

• David Allemann

  Shares: 45,057,673.00 · Class: 13.8%

• Olivier Bernhard

  Shares: 45,057,673.00 · Class: 13.8%

• Caspar Coppetti

  Shares: 45,057,673.00 · Class: 13.8%

• Martin Hoffmann

  Shares: 45,329,781.00 · Class: 13.9%

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