The Atomo Diagnostics Ltd (ASX: AT1) share price has rocketed in opening trade today after the medical device company released its fourth-quarter results to the ASX. At the time of writing, the Atomo share price is trading 9.30% higher at 23.5 cents apiece. How did Atomo perform for the quarter? The Atomo share price is soaring after the company reported a robust performance during the fourth quarter. For the period ending 30 June, Atomo recorded cash receipts from customers of $717,000, bringing the full-year to $8.01 million. It’s worth noting that shortly after the close of Q4 FY21, a further $750,000 was received. Sales represented a total of $6.7 million for the 2021 financial year, up by 25% when compared to FY20 ($5.4 million).