HIGHBRIDGE CAPITAL MANAGEMENT LLC - 30 Sep 2025 SCHEDULE 13G/A Report for Karyopharm Therapeutics Inc. Common Stock, par value $0.0001 per share (KPTI)

Filing Manager
HIGHBRIDGE CAPITAL MANAGEMENT LLC
Reporting Manager
HIGHBRIDGE CAPITAL MANAGEMENT, LLC
Security
Karyopharm Therapeutics Inc. Common Stock, par value $0.0001 per share
Symbol
KPTI
Shares outstanding
13,264,980 shares
Disclosed Ownership
649,984 shares
Ownership
4.9%
Form type
SCHEDULE 13G/A
Filing time
14 Nov 2025, 10:45:16 UTC
Date of event
30 Sep 2025
SEC
View on sec.gov

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Quoteable Key Fact

"HIGHBRIDGE CAPITAL MANAGEMENT LLC disclosed 4.9% ownership in Karyopharm Therapeutics Inc. Common Stock, par value $0.0001 per share (KPTI) on 30 Sep 2025."

Quick Takeaways

  • HIGHBRIDGE CAPITAL MANAGEMENT LLC filed SCHEDULE 13G/A for Karyopharm Therapeutics Inc. Common Stock, par value $0.0001 per share (KPTI).
  • Disclosed ownership: 4.9%.
  • Date of event: 30 Sep 2025.

What Changed

  • No earlier schedule filing is available for direct comparison.
  • Current filing was accepted on 14 Nov 2025, 10:45.

Why This Matters

  • This page explains what this Schedule 13D/13G filing tells you before manager-level rows.
  • You can verify ownership claims directly against the original SEC filing.

Source Evidence

Backed by Schedule 13D/13G

Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.

See Original Filing

Reporting Managers (1)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
HIGHBRIDGE CAPITAL MANAGEMENT, LLC 4.9% 649,984 649,984 0 /s/ Kirk Rule Kirk Rule, Executive Director

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