Filing Manager
JANUS HENDERSON GROUP PLC
Reporting Manager
JANUS HENDERSON GROUP PLC
Symbol
KTTA
Shares outstanding
102,398,919 shares
Disclosed Ownership
10,229,652 shares
Ownership
10%
Form type
SCHEDULE 13G
Filing time
08 Dec 2025, 11:46:40 UTC
Date of event
28 Nov 2025

Quoteable Key Fact

"JANUS HENDERSON GROUP PLC disclosed 10% ownership in PASITHEA THERAPEUTICS CORP. Common Stock (KTTA) on 28 Nov 2025."

Quick Takeaways

  • JANUS HENDERSON GROUP PLC filed SCHEDULE 13G for PASITHEA THERAPEUTICS CORP. Common Stock (KTTA).
  • Disclosed ownership: 10%.
  • Date of event: 28 Nov 2025.

What Changed

  • No earlier schedule filing is available for direct comparison.
  • Current filing was accepted on 08 Dec 2025, 11:46.

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
JANUS HENDERSON GROUP PLC 10% 10,229,652 0 10,229,652 Kristin Mariani Head of North America Compliance, CCO
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