Executive Change

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D. C. 20549 FORM 8-K/A CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): April 24, 2017 (April 21, 2017) ARCONIC INC. (Exact name of registrant as specified in its charter) Pennsylvania 1-3610 25-0317820 (State or other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.) 390 Park Avenue, New York, New York 10022-4608 (Address of Principal Executive Offices) (Zip Code) Office of Investor Relations 212-836-2758 Office of the Secretary 212-836-2732 (Registrant’s telephone number, including area code) (Former Name or Former Address, if Changed Since Last Report) Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ 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. ☐ Explanatory Note On March 6, 2017, Arconic Inc. (the “Company”) filed a Current Report on Form 8-K (the “Prior Report”) reporting the appointment of David P. Hess as a director of the Company, effective as of March 10, 2017. The Prior Report did not include information regarding the committees of the Company’s Board of Directors (the “Arconic Board”) on which Mr. Hess would serve, because the information was unavailable at that time. Pursuant to Instruction 2 to Item 5.02 of Form 8-K, this Form 8-K/A is being filed for the purpose of providing that information. Item 5.02 Departure of Directors or Principal Officers; Election of Directors; Appointment of Principal Officers. On April 21, 2017, the Arconic Board appointed David P. Hess to serve on the Executive Committee, effective as of April 21, 2017. SIGNATURE Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. ARCONIC INC. Dated: April 24, 2017 By: /s/ Katherine H. Ramundo Name: Katherine H. Ramundo Title: Executive Vice President, Chief Legal Officer and Secretary