Filing Manager
Carl C. Icahn
Reporting Manager
CARL C ICAHN
Symbol
ENZN
Shares outstanding
14,329,190 shares
Disclosed Ownership
13,426,451 shares
Ownership
94%
Form type
SCHEDULE 13D/A
Filing time
27 Mar 2026, 19:48:34 UTC
Date of event
25 Mar 2026
Previous filing
30 Jan 2026

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Quoteable Key Fact

"Carl C. Icahn disclosed 94% ownership in VISKASE HOLDINGS, INC. Common Stock, par value $0.01 per share (ENZN) on 25 Mar 2026."

Quick Takeaways

  • Carl C. Icahn filed SCHEDULE 13D/A for VISKASE HOLDINGS, INC. Common Stock, par value $0.01 per share (ENZN).
  • Disclosed ownership: 94%.
  • Date of event: 25 Mar 2026.

What Changed

  • Previous schedule filing date: 30 Jan 2026.
  • Current filing was accepted on 27 Mar 2026, 19:48.

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 (3)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
CARL C ICAHN 94% 13,426,451 0 13,426,451 /s/ Carl C. Icahn Carl C. Icahn 0000921669
ICAHN ENTERPRISES HOLDINGS L.P. 94% 13,426,451 0 13,426,451 /s/ Ted Papapostolou Ted Papapostolou, Chief Financial Officer 0001034563
ICAHN ENTERPRISES G.P. INC. 94% 13,426,451 0 13,426,451 /s/ Ted Papapostolou Ted Papapostolou, Chief Financial Officer 0001257324