SCHEDULE 13G/A

NEKTAR THERAPEUTICS

Common Stock, par value $0.0001 per share · CUSIP: 640268108

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

• TCG Crossover GP II, LLC

  Shares: 1,933,333 · Class: 9.3%

• TCG Crossover Fund II, L.P.

  Shares: 1,933,333 · Class: 9.3%

• Chen Yu

  Shares: 1,933,333 · Class: 9.3%

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