---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-26-059349"
form_type: "8-K"
ticker: "KPTI"
cik: "0001503802"
company_name: "Karyopharm Therapeutics Inc."
filed_at: "2026-02-19T23:59:59+00:00"
generated_at: "2026-05-16T01:43:07.124338+00:00"
event_type: "other"
sentiment: "neutral"
materiality_score: 0.4
calibrated_materiality_score: 0.15
confidence: "high"
source: SEC EDGAR
---

# Karyopharm shareholders approve increase in authorized shares to 111M at special meeting

## Summary
- Authorized common stock raised from 53,333,333 to 106,000,000; total capital shares from 58,333,333 to 111,000,000.
- Vote: 9,436,123 for, 3,213,329 against, 25,465 abstain; adjournment proposal also approved but not needed.
- Certificate of amendment filed with Delaware Secretary of State on February 18, 2026.

## SEC filing metadata
- accession: 0001193125-26-059349
- form_type: 8-K
- ticker: KPTI
- cik: 0001503802
- company_name: Karyopharm Therapeutics Inc.
- filed_at: 2026-02-19T23:59:59+00:00
- event_type: other
- sentiment: neutral
- materiality_score: 0.4
- calibrated_materiality_score: 0.15
- confidence: high
- sec_items: 5.07
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1503802/000119312526059349/0001193125-26-059349-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1503802/000119312526059349/kpti-20260218.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-26-059349
- JSON: https://secwatch.observer/filing/0001193125-26-059349.json
- Plain text: https://secwatch.observer/filing/0001193125-26-059349.txt

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