SCHEDULE 13G/A

Unisys Corp

Common Stock, par value $0.01 per share · CUSIP: 909214306

Event date: 2026-09-30

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

• Needham Investment Management L.L.C.

  Shares: 4,166,150.00 · Class: 5.7%

• Needham Asset Management, LLC

  Shares: 4,166,150.00 · Class: 5.7%

• Needham Aggressive Growth Fund

  Shares: 3,852,650.00 · Class: 5.3%

• George A. Needham

  Shares: 4,166,150.00 · Class: 5.7%

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