INTRODUCTION: Ownership of Federal Securities.

The document titled "INTRODUCTION: Ownership of Federal Securities" provides information on the ownership of federal securities in the United States. It explains that federal securities include savings bonds, bills, notes, and bonds issued by the Treasury, as well as debt issued by other federal agencies. The document presents tables that show the distribution of these securities among different types of investors, including government accounts, Federal Reserve banks, private investors, pension funds, state and local governments, insurance companies, mutual funds, and foreign and international investors. The tables provide data on the outstanding amount of federal securities for different years and months. The provided text appears to be a compilation of data related to the public debt of the United States. The data includes figures for different time periods, such as September 2021, June 2021, March 2021, and December 2020, among others. The figures represent various aspects of the public debt, including total debt, debt held by different entities such as the Federal Reserve, foreign entities, and individuals, and debt held in different forms such as Treasury securities and savings bonds. The data is sourced from the "Monthly Statement of the Public Debt of the United States" and other relevant sources. [Extracted from the article]