Annual Meeting of Stockholders

Date: March 2, 2021
Time: 11:00 AM Central Time
Location: Virtually at: http://www.virtualshareholdermeeting.com/NAV2021

• Vote your shares via the Internet or by calling 1-800-690-6903.
• Sign up for Electronic Delivery of Materials.
• For additional information or assistance, visit:
  • Board of Directors for information related to the board of directors
  • SEC Filings for information on the company’s SEC filings
  • Investor Contacts to contact the company