On August 30, 2021, the Board of Directors of Atrion Corporation voted to increase the total number of directors constituting the Board of Directors from five to six and elected Maria Sainz to serve as a member of the Board of Directors of the Company as a Class III director, effective immediately, with her term to expire at the 2022 annual meeting of stockholders. The Board of Directors has determined that Ms. Sainz is an independent director within the meaning of The Nasdaq Stock Market LLC listing rules.