Operator
Good day, and thank you for standing by. Welcome to the Pulmonx Q1 2021 earnings conference call. [Operator instructions] I would now like to hand the conference over to your first speaker today, Brian Johnston, with Gilmartin Group. Sir, you may begin.
Brian Johnston --
Vice President, Investor Relations
Thanks, operator. Good afternoon, and thank you all for participating in today's call. Joining me from Pulmonx are Glen French, president and chief executive officer; and Derrick Sung, chief financial officer. Earlier today, Pulmonx released financial results for the quarter ended March 31, 2021.
A copy of the press release is available on the company's website. Before we begin, I'd like to remind you that management will make statements during this call that include forward-looking statements within the meaning of federal securities laws, which are made pursuant to the Safe Harbor provisions of the Private Securities Litigation Reform Act of 1995. Any statements contained in this call that relate to events, results or performance are forward-looking statements. All forward-looking statements, including, without limitation, those relating to our operating trends and future financial performance, the impact of COVID-19 on our business and prospects for recovery, expense management, expectations for hiring, growth in our organization, market opportunity, guidance for revenue, gross margin and operating expenses, commercial expansion and product pipeline development are based upon current estimates and various assumptions.