Triton Container International Ltd., which is owned by the wealthy Pritzker family, is expected to disclose as early as Thursday its sale to private-equity firms Warburg Pincus LLC and Vestar Capital Partners for about $1 billion, people familiar with the matter said.

Talks are ongoing and details are still being finalized, these people added. Including debt and cash, a sale would value Triton at about $3.5 billion, people familiar with the matter said. Get the full story »