Table of Contents As filed with the Securities and Exchange Commission on September 15, 2023. Registration No. 333-273411 UNITED STATES SECURITIES AND EXCHANGE COMMISSION (Exact Name of Registrant as Specified in Its Charter) (State or Other Jurisdiction of Incorporation or Organization) Delaware 6282 85-1210472 (Primary Standard Industrial Classification Code Number) 2101 Park Center Drive, Suite 170 Washington, D.C. 20549 AMENDMENT 1 TO FORM S-1 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 Abac ...