SCHEDULE 13D/A

ENZON INC

Common Stock, No par value · CUSIP: 293904108

Event date: 2024-12-19

Reporting persons may disclose overlapping interests. Their amounts are shown individually and are not added into a filing total.

Filing-level shares

Unavailable

Percent of class

Unavailable

• CARL C ICAHNReported CIK 0000921669

  Shares: 36,056,636.00 · Class: 48.6%

• ICAHN PARTNERS MASTER FUND LPReported CIK 0001322827

  Shares: 14,923,911.00 · Class: 20.1%

• Icahn Offshore LPReported CIK 0001322825

  Shares: 14,923,911.00 · Class: 20.1%

• Icahn Partners LPReported CIK 0001313666

  Shares: 21,132,725.00 · Class: 28.5%

• Icahn Onshore LPReported CIK 0001322826

  Shares: 21,132,725.00 · Class: 28.5%

• Icahn Capital LPReported CIK 0001412093

  Shares: 36,056,636.00 · Class: 48.6%

• IPH GP LLCReported CIK 0001412091

  Shares: 36,056,636.00 · Class: 48.6%

• ICAHN ENTERPRISES HOLDINGS L.P.Reported CIK 0001034563

  Shares: 36,056,636.00 · Class: 48.6%

• ICAHN ENTERPRISES G.P. INC.Reported CIK 0001257324

  Shares: 36,056,636.00 · Class: 48.6%

• BECKTON CORPReported CIK 0001080113

  Shares: 36,056,636.00 · Class: 48.6%

Amounts are as disclosed in this filing. Schedule type alone does not establish investment intent.