Statement of Additional Information - American Funds Mortgage Fund

Disclosure of portfolio holdingsThe fund’s investment adviser, on behalf of the fund, has adopted policies and procedures with respect to the disclosure ofinformation about fund portfolio securities. These policies and procedures have been reviewed by the fund’s board of trustees andcompliance will be periodically assessed by the board in connection with reporting from the fund’s Chief Compliance Officer.Under these policies and procedures, the fund’s complete list of portfolio holdings available for public disclosure, dated as of the endof each calendar quarter, is permitted to be posted on the American Funds website no earlier than the tenth day after such calendarquarter. In practice, the public portfolio typically is posted on the website within 30 days after the end of the calendar quarter. Inaddition, the fund’s list of top 10 equity portfolio holdings measured by percentage of net assets invested, dated as of the end of eachcalendar month, is permitted to be posted on the American Funds website no earlier than the tenth day after such month. Suchportfolio holdings information may then be disclosed to any person pursuant to an ongoing arrangement to disclose portfolio holdingsinformation to such person no earlier than one day after the day on which the information is posted on the American Funds website.The fund’s custodian, outside counsel and auditor, each of which requires portfolio holdings information for legitimate business andfund oversight purposes, may receive the information earlier. See the “General information” section in this statement of additionalinformation for further information about the fund’s custodian, outside counsel and auditor.Affiliated persons of the fund, including officers of the fund and employees of the investment adviser and its affiliates, who receiveportfolio holdings information are subject to restrictions and limitations on the use and handling of such information pursuant toapplicable codes of ethics, including requirements not to trade in securities based on confidential and proprietary investmentinformation, to maintain the confidentiality of such information, and to preclear securities trades and report securities transactionsactivity, as applicable. For more information on these restrictions and limitations, please see the “Code of Ethics” section in thisstatement of additional information and the Code of Ethics. Third party service providers of the fund, as described in this statement ofadditional information, receiving such information are subject to confidentiality obligations. When portfolio holdings information isdisclosed other than through the American Funds website to persons not affiliated with the fund (which, as described above, wouldtypically occur no earlier than one day after the day on which the information is posted on the American Funds website), such personswill be bound by agreements (including confidentiality agreements) or fiduciary obligations that restrict and limit their use of theinformation to legitimate business uses only. Neither the fund nor its investment adviser or any affiliate thereof receives compensationor other consideration in connection with the disclosure of information about portfolio securities.Page 42