Rubric Capital Management LP - 31 Dec 2025 SCHEDULE 13G/A Report for Kiniksa Pharmaceuticals International, plc Class A Ordinary Shares, nominal value $0.000273235 per share (KNSA)

Filing Manager
Rubric Capital Management LP
Reporting Manager
Rubric Capital Management LP
Security
Kiniksa Pharmaceuticals International, plc Class A Ordinary Shares, nominal value $0.000273235 per share
Symbol
KNSA
Shares outstanding
45,164,898 shares
Disclosed Ownership
3,328,653 shares
Ownership
7.4%
Form type
SCHEDULE 13G/A
Filing time
13 Feb 2026, 16:07:03 UTC
Date of event
31 Dec 2025
Previous filing
09 Jul 2025
SEC
View on sec.gov

Quoteable Key Fact

"Rubric Capital Management LP disclosed 7.4% ownership in Kiniksa Pharmaceuticals International, plc Class A Ordinary Shares, nominal value $0.000273235 per share (KNSA) on 31 Dec 2025."

Quick Takeaways

  • Rubric Capital Management LP filed SCHEDULE 13G/A for Kiniksa Pharmaceuticals International, plc Class A Ordinary Shares, nominal value $0.000273235 per share (KNSA).
  • Disclosed ownership: 7.4%.
  • Date of event: 31 Dec 2025.

What Changed

  • Previous schedule filing date: 09 Jul 2025.
  • Current filing was accepted on 13 Feb 2026, 16:07.

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 (2)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
Rubric Capital Management LP 7.4% 3,328,653 0 3,328,653 /s/ Michael Nachmani Michael Nachmani / Chief Operating Officer
David Rosen 7.4% 3,328,653 0 3,328,653 /s/ David Rosen David Rosen / Individually