X0306 4 2018-05-01 0000004962 AMERICAN EXPRESS CO AXP 0001326109 Squeri Stephen J 200 VESEY STREET, AMERICAN EXPRESS TOWER NEW YORK NY 10285-5001 1 Vice Chairman Common Stock 2018-05-01 4 S 0 9851 97.93 D 203919.813 D Common Stock 2018-05-01 4 S 0 2649 98.49 D 201270.813 D Common Stock 118.74 I 401(k) Trust The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $97.34 to $98.33. The reporting person undertakes to provide to American Express Company, any security holder of American Express Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within this range. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $98.34 to $98.60. The reporting person undertakes to provide to American Express Company, any security holder of American Express Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within this range. Shares held in reporting person's account under the Company's Retirement Savings Plan. This plan uses unit accounting, and the number of shares that a participant is deemed to hold varies with the unit price of the Company pooled stock fund. The transactions reported on this Form 4 were effected pursuant to a rule 10b5-1 plan adopted by the reporting person on March 14, 2018. /s/ Tangela S. Richter, attorney-in-fact 2018-05-03