---
schema_version: "secwatch.filing_event.v1"
accession: "0001213900-25-051191"
form_type: "8-K"
ticker: "NKTR"
cik: "0000906709"
company_name: "NEKTAR THERAPEUTICS"
filed_at: "2025-06-04T23:59:59+00:00"
generated_at: "2026-05-20T00:42:57.802921+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.7
calibrated_materiality_score: 0.7
confidence: "high"
source: SEC EDGAR
---

# Nektar Therapeutics announces 1-for-15 reverse stock split effective June 8

## Summary
- Board approved 1-for-15 reverse stock split effective June 8, 2025 at 11:59 p.m. ET.
- Stockholders authorized reverse split ratio up to 1:40 at May 23 annual meeting; Board selected 1:15.
- Split-adjusted trading begins June 9 under symbol NKTR with new CUSIP 640268306.
- No fractional shares issued; rounding up for DTC participants, down for stock awards.

## SEC filing metadata
- accession: 0001213900-25-051191
- form_type: 8-K
- ticker: NKTR
- cik: 0000906709
- company_name: NEKTAR THERAPEUTICS
- filed_at: 2025-06-04T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.7
- calibrated_materiality_score: 0.7
- confidence: high
- sec_items: 8.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/906709/000121390025051191/0001213900-25-051191-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/906709/000121390025051191/ea0244011-8k_nektar.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001213900-25-051191
- JSON: https://secwatch.observer/filing/0001213900-25-051191.json
- Plain text: https://secwatch.observer/filing/0001213900-25-051191.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.