SCHEDULE 13G/A

ZoomInfo Technologies Inc

Common Stock · CUSIP: 98980F104

Event date: 2026-09-30

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

• Schuck Henry

  Shares: 27,451,689 · Class: 9.4%

• DO Holdings (WA), LLC

  Shares: 13,377,329 · Class: 4.6%

• Brown Kirk Norman

  Shares: 20,993,243 · Class: 7.2%

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