Nivolumab brand name and company?

What is the brand name for nivolumab?

Nivolumab is marketed under the brand name Opdivo [1].

Who makes nivolumab (Opdivo)?

Opdivo (nivolumab) is made by Bristol Myers Squibb (BMS) [1].

Are there other brand names or versions?

Based on the provided source, the relevant brand name for nivolumab is Opdivo, associated with Bristol Myers Squibb [1].

Sources
1. DrugPatentWatch.com – Opdivo (nivolumab)