UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 20549

SCHEDULE 14A

PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE

SECURITIES EXCHANGE ACT OF 1934

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ARCONIC INC.

(Name of Registrant as Specified In Its Charter)

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

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To Our Customers, We Are Mission Critical From deep partnerships, we develop the innovative solutions that create substantial value for customers ARCONIC AIRBUS “What is Klaus’ I particularly deep value understanding critical levers to of support the IOEM fully goals. support As his CEO continued of Airbus, leadership of Arconic.” - Tom Enders CEO Airbus March Group 2017 BOEING “Klaus team have improved Kleinfeld and his our business focusing in relationship the right by areas, collective increasing competitive- our ness innovation and delivering and greater value we serve to together. the customers ” Chairman, - Dennis President Muilenburg & CEO The Boeing March Company 2017 United Technologies “[We] the rest support of Arconic Klaus and management focused on the as they remain investments secure sustainable, that will UTC, long-term for Arconic, growth and for for our entire industry.” Chairman, President - Greg J. Hayes & CEO of United Technologies March Corp. 2017 GE Aviation “Investments technology and in rate readiness important are than more ever within our growing the supply aviation chains of and industry… the Arconic GE supports Klaus priorities commitment and to the those long-term future of our industry.” GE Vice - David Chair and Joyce GE Aviation President February & 2017 CEO Larry Lawson Won’t Fly at Arconic Elliott’s Proposed CEO is Wrong for Arconic and is Not Independent. There are significant doubts about Larry Lawson’s ability to maintain essential customer relationships. “Industry executives and government officials who worked with Lawson [as CEO of Spirit AeroSystems] said he might not be best suited for often tense negotiations with both Boeing and Airbus about large supply agreements…” (Reuters, 1/27/16) “‘His sudden decision to go [from Spirit AeroSystems] with contract negotiations with Boeing and Airbus unresolved is puzzling.’” (Cai von Rumohr, aerospace analyst at Cowen & Co., quoted in the Wall Street Journal, 6/8/16) Larry Lawson mysteriously departed from previous employers. legally Larry Lawson restricted is from as Arconic’s taking the CEO job and is on Elliott’s payroll Elliott pay Larry has Lawson agreed to approximately over the next 2 years. How Lawson will be Larry objective and interests act in of the ALL best our shareholders? Elliott’s ideas would damage our customer relationships and risk our future. If Elliott has credible ideas about how to strengthen Arconic’s business, why haven’t improve any operating of our key performance customers and build endorsed long-term Elliott? value, Elliott’s “plan” for Arconic? IT JUST DOESN’T FLY. DON’T LET ELLIOTT “BUY” ARCONIC’S NEXT CEO. PROTECT YOUR INVESTMENT KEEP ARCONIC ON A STRONG PATH. VOTE THE PROXY CARD If you have any questions, please call our proxy solicitor: Innisfree M&A Incorporated (877) 750-5836 TOLL-FREE from the U.S. and Canada