| --- | |----------------------------------------------------------------| | Maryland | | (State or other jurisdiction of incorporation or organization) | | 14185 Dallas Parkway | | Suite 1200 | | Dallas | | Texas | 75254 (Zipcode) UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K ☑ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2021 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECUR ...