Prospectus Supplement August 13, 2021

For the following funds with prospectuses dated
September 1, 2020 – August 1, 2021 (as supplemented to date)

The following is added to the “Appendix – Sales charge waivers” section of the prospectus:

Class A Sales Charge Waivers Available Through Farmers Financial Solutions

Farmers Financial Solutions has the authority to either i) rollover shares from an employer sponsored retirement plan to Class A shares in an Individual Retirement Account (IRA) at net asset value or ii) allow the purchase of Class A shares at net asset value, so long as the proceeds are from the sale of shares from an employer sponsored retirement plan and are used to make a purchase within 60 days of the redemption, if the shares held are ineligible to be rolled over to an IRA.

JP Morgan Securities

Effective August 30, 2021, investors purchasing through JP Morgan Securities, LLC may invest in Class 529-A shares at net asset value.

Keep this supplement with your prospectus.

Lit. No. MFGEBS-485-0821P CGD/AFD/10039-S77629

THE FUND MAKES AVAILABLE A SPANISH TRANSLATION OF THE ABOVE PROSPECTUS SUPPLEMENT IN CONNECTION WITH THE PUBLIC OFFERING AND SALE OF ITS SHARES. THE ENGLISH LANGUAGE PROSPECTUS SUPPLEMENT ABOVE IS A FAIR AND ACCURATE REPRESENTATION OF THE SPANISH EQUIVALENT.

AMCAP Fund® Statement of Additional Information Supplement August 13, 2021 (for statement of additional information dated May 1, 2021)

The information under the sub-header “Indirect exposure to cryptocurrencies” in the “Description of certain securities, investment techniques and risks” section of the statement of additional information is amended in its entirety to read as follows:

Indirect exposure to cryptocurrencies – Cryptocurrencies are currencies which exist in a digital form and may act as a store of wealth, a medium of exchange or an investment asset. There are thousands of cryptocurrencies, such as bitcoin. Although the fund has no current intention of directly investing in cryptocurrencies, some issuers have begun to accept cryptocurrency for payment of services, use cryptocurrencies as reserve assets or invest in cryptocurrencies, and the fund may invest in securities of such issuers. The fund may also invest in securities of issuers which provide cryptocurrency-related services.

Cryptocurrencies are subject to fluctuations in value. Cryptocurrencies are not backed by any government, corporation, or other identified body. Rather, the value of a cryptocurrency is determined by other factors, such as the perceived future prospects or the supply and demand for such cryptocurrency in the global market for the trading of cryptocurrency. Such trading markets are unregulated and may be more exposed to operational or technical issues as well as fraud or manipulation in comparison to established, regulated exchanges for securities, derivatives and traditional currencies. The value of a cryptocurrency may decline precipitously (including to zero) for a variety of reasons, including, but not limited to, regulatory changes, a loss of confidence in its network or a change in user preference to other cryptocurrencies. An issuer that owns cryptocurrencies may experience custody issues, and may lose its cryptocurrency holdings through theft, hacking, and technical glitches in the applicable blockchain. The fund may experience losses as a result of the decline in value of its securities of issuers that own cryptocurrencies or which provide cryptocurrency-related services. If an issuer that owns cryptocurrencies intends to pay a dividend using such holdings or to otherwise make a distribution of such holdings to its stockholders, such dividends or distributions may face regulatory, operational and technical issues.

Factors affecting the further development of cryptocurrency include, but are not limited to: continued worldwide growth of, or possible cessation of or reversal in, the adoption and use of cryptocurrencies and other digital assets; the developing regulatory environment relating to cryptocurrencies, including the characterization of cryptocurrencies as currencies, commodities, or securities, the tax treatment of cryptocurrencies, and government and quasi-government regulation or restrictions on, or regulation of access to and operation of, cryptocurrency networks and the exchanges on which cryptocurrencies trade, including anti-money laundering regulations and requirements; perceptions regarding the environmental impact of a cryptocurrency; changes in consumer demographics and public preferences; general economic conditions; maintenance and development of open-source software protocols; the availability and popularity of other forms or methods of buying and selling goods and services; the use of the networks supporting digital assets, such as those for developing smart contracts and distributed applications; and general risks tied to the use of information technologies, including cyber risks. A hack or failure of one cryptocurrency may lead to a loss in confidence in, and thus decreased usage and/or value of, other cryptocurrencies.

Keep this supplement with your statement of additional information.

Lit. No. MFGEBS-488-0821O CGD/10149-S87087