On March 3, 2021, Mr. William O. Grabe expressed his intention to not stand for re-election to the Board of Directors (the ‘Board’) of QTS Realty Trust, Inc. (the ‘Company’) at the 2021 Annual Meeting of Stockholders of the Company, and his term will therefore end at the conclusion of the 2021 Annual Meeting of Stockholders. Mr. Grabe joined the Company’s Board in 2013 and was a director of the Company’s predecessor from 2009 until the Company’s initial public offering in October 2013. Mr. Grabe’s determination to not stand for re-election is not the result of any disagreement with the Company relating to its operations, policies or practices. In connection with Mr. Grabe's decision, the Company's Board of Directors has determined that, effective at the conclusion of the 2021 Annual Meeting of Stockholders, the size of the Board will be decreased from eleven to ten directors.