Filing Manager
BIOGEN INC.
Reporting Manager
BIOGEN INC.
Symbol
APLS
Shares outstanding
130,066,725 shares
Disclosed Ownership
18,469,475 shares
Ownership
14%
Form type
SCHEDULE 13D
Filing time
06 Apr 2026, 18:08:10 UTC
Date of event
31 Mar 2026

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Quoteable Key Fact

"BIOGEN INC. disclosed 14% ownership in APELLIS PHARMACEUTICALS, INC. Common Stock, par value $0.0001 per share (APLS) on 31 Mar 2026."

Quick Takeaways

  • BIOGEN INC. filed SCHEDULE 13D for APELLIS PHARMACEUTICALS, INC. Common Stock, par value $0.0001 per share (APLS).
  • Disclosed ownership: 14%.
  • Date of event: 31 Mar 2026.

What Changed

  • No earlier schedule filing is available for direct comparison.
  • Current filing was accepted on 06 Apr 2026, 18:08.

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.

Official SEC Source

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
BIOGEN INC. 14% 18,469,475 0 18,469,475 /s/ Wendell Taylor Wendell Taylor / Secretary 0000875045