Wasatch Ultra Growth Fund recently released its Q4 2020 Investor Letter, a copy of which you can download here. The fund posted a return of 23.2% for the quarter, underperforming its benchmark, the Russell 2,000 Growth Index which returned 29.6% in the same quarter. You should check out Wasatch's top 5 stock picks for investors to buy right now, which could be the biggest winners of 2021. In the Q4 2020 Investor Letter, Wasatch highlighted a few stocks and Zendesk Inc. (NYSE:ZEN) is one of them. Zendesk Inc. (NYSE:ZEN) operates as a software company.