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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 10-K

OR

Commission File No. 1-7657

American Express Company

(Exact name of registrant as specified in its charter)

Registrant’s telephone number, including area code: (212) 640-2000

Securities registered pursuant to Section 12(b) of the Act:

Securities registered pursuant to section 12(g) of the Act: None

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Yes þ No o

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act. Yes o No þ

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports) and (2) has been subject to such filing requirements for the past 90 days. Yes þ No o

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes þ No o

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. o

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act). Yes ☐ No þ

As of June 30, 2019, the aggregate market value of the registrant’s voting shares held by non-affiliates of the registrant was approximately $102.7 billion based on the closing sale price as reported on the New York Stock Exchange.

As of January 30, 2020, there were 808,040,664 common shares of the registrant outstanding.

DOCUMENTS INCORPORATED BY REFERENCE

Part III: Portions of Registrant’s Proxy Statement to be filed with the Securities and Exchange Commission in connection with the Annual Meeting of Shareholders to be held on May 5, 2020.

TABLE OF CONTENTS

This Annual Report on Form 10-K, including the “Management’s Discussion and Analysis of Financial Condition and Results of Operations,” contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995 that are subject to risks and uncertainties. You can identify forward-looking statements by words such as “believe,” “expect,” “anticipate,” “intend,” “plan,” “aim,” “will,” “may,” “should,” “could,” “would,” “likely,” “estimate,” “predict,” “potential,” “continue” or other similar expressions. We discuss certain factors that affect our business and operations and that may cause our actual results to differ materially from these forward-looking statements under “Risk Factors” and “Cautionary Note Regarding Forward-Looking Statements.” You are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date on which they are made. We undertake no obligation to update publicly or revise any forward-looking statements.

This report includes trademarks, such as American Express®, which are protected under applicable intellectual property laws and are the property of American Express Company or its subsidiaries. This report also contains trademarks, service marks, copyrights and trade names of other companies, which are the property of their respective owners. Solely for convenience, our trademarks and trade names referred to in this report may appear without the ® or ™ symbols, but such references are not intended to indicate, in any way, that we will not assert, to the fullest extent under applicable law, our rights or the right of the applicable licensor to these trademarks and trade names.

Throughout this report the terms “American Express,” “we,” “our” or “us,” refer to American Express Company and its subsidiaries on a consolidated basis, unless stated or the context implies otherwise. The use of the term “partner” or “partnering” in this report does not mean or imply a formal legal partnership, and is not meant in any way to alter the terms of American Express’ relationship with any third parties. Refer to the “MD&A ― Glossary of Selected Terminology” for the definitions of other key terms used in this report.

PART I