SCHEDULE 13G

Inogen Inc

Common Stock, $0.001 par value · CUSIP: 45780L104

Event date: 2025-02-21

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

• Yuwell (Hong Kong) Holdings Limited

  Shares: 2,626,425.00 · Class: 9.90%

• Jiangsu Yuyue Medical Equipment & Supply Co., Ltd.

  Shares: 2,626,425.00 · Class: 9.90%

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