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

Delaware 

(State of incorporation) 

[ x ] ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 

[ ] TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 

# UNITED STATES SECURITIES AND EXCHANGE COMMISSION 

# For The Fiscal Year Ended December 31, 2018 

(Exact name of registrant as specified in its charter) 

390 Park Avenue, New York, New York 10022-4608 

(Address of principal executive offices) 

Registrant’s telephone numbers: 

Investor Relations----------------(212) 836-2758 Office of the Secretary-----------(212) 836-2732 

WASHINGTON, D.C. 20549 

Commission File Number 1-3610 

# FORM 10-K 

OR 

# ARCONIC INC. 

(I.R.S. Employer Identification No.) 

(Zip code) 

25-0317820 

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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 ✓ No . 

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

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, and (2) has been subject to such filing requirements for the past 90 days. Yes ✓ No . 

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 ✓ No . 

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be contained, to the best of registrant’s knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K. [] 

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting 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. 

Large accelerated filer [ ✓ ] 

Smaller reporting company [] 

Accelerated filer [] 

Emerging growth company [] 

Non-accelerated filer [] 

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. [ ] 

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

The aggregate market value of the outstanding common stock, other than shares held by persons who may be deemed affiliates of the registrant, as of the last business day of the registrant’s most recently completed second fiscal quarter was approximately $8 billion. As of February 15, 2019, there were 484,940,842 shares of common stock, par value $1.00 per share, of the registrant outstanding. 

Documents incorporated by reference. 

Part III of this Form 10-K incorporates by reference certain information from the registrant’s definitive Proxy Statement for its 2019 Annual Meeting of Shareholders to be filed pursuant to Regulation 14A (Proxy Statement). 

