UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A

(Rule 14a-101)

INFORMATION REQUIRED IN PROXY STATEMENT

SCHEDULE 14A INFORMATION

Proxy Statement Pursuant to Section 14(a) of The Securities Exchange Act of 1934

(Amendment No. )

Filed by the Registrant ☐

Filed by a Party other than the Registrant ☒

Check the appropriate box:

☐ Preliminary Proxy Statement

☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))

☐ Definitive Proxy Statement

☒ Definitive Additional Materials

☐ Soliciting Material Under Rule 14a-12

ARCONIC INC.

(Name of Registrant as Specified in Its Charter)

ELLIOTT ASSOCIATES, L.P.

ELLIOTT INTERNATIONAL, L.P.

PAUL E. SINGER

ELLIOTT CAPITAL ADVISORS, L.P.

ELLIOTT SPECIAL GP, LLC

BRAXTON ASSOCIATES, INC.

ELLIOTT ASSET MANAGEMENT LLC

ELLIOTT INTERNATIONAL CAPITAL ADVISORS INC.

HAMBLEDON, INC.

ELLIOTT MANAGEMENT CORPORATION

THE LIVERPOOL LIMITED PARTNERSHIP

LIVERPOOL ASSOCIATES LTD.

LARRY A. LAWSON

CHRISTOPHER L. AYERS

ELMER L. DOTY

BERND F. KESSLER

PATRICE E. MERRIN

(Name of Persons(s) Filing Proxy Statement, if Other Than the Registrant)

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☐          Check box if any part of the fee is offset as provided by Exchange Act Rule 0-11(a)(2) and identify the filing for which the offsetting fee was paid previously. Identify the previous filing by registration statement number, or the form or schedule and the date of its filing.

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Elliott Associates, L.P. and Elliott International, L.P., together with the other participants in such proxy solicitation (collectively, “Elliott”), have filed a definitive proxy statement and accompanying BLUE proxy card with the Securities and Exchange Commission to be used to solicit votes for the election of its slate of four highly-qualified director nominees at the 2017 annual meeting of shareholders of Arconic Inc., a Pennsylvania corporation.

On April 25, 2017, the following materials were posted by Elliott to www.NewArconic.com: