SCHEDULE 13G/A

SONIM TECHNOLOGIES INC

Common Stock · CUSIP: 83548F309

Event date: 2025-07-07

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

• LYTTON LAURENCE W

  Shares: 987,465.00 · Class: 5.6%

• Lytton-Kambara Foundation

  Shares: 800,000.00 · Class: 4.5%

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