Sec Form 4 Filing - ROSS CHRISTOPHER J @ AK STEEL HOLDING CORP - 2019-01-23

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person ROSS CHRISTOPHER J 2. Issuer Name and Ticker or Trading Symbol AK STEEL HOLDING CORP [ AKS] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) VP & Treasurer (Last) (First) (Middle) 9227 CENTRE POINTE DRIVE 3. Date of Earliest Transaction (MM/DD/YY) 01/23/2019 (Street) WEST CHESTER, OH45069 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 01/23/2019 A 2,242 ( 1 ) A $ 0 31,928 D Common Stock 01/23/2019 M 2,527 ( 2 ) A $ 0 34,455 D Common Stock 01/23/2019 F 1,581 D $ 2.655 32,874 D Common Stock 01/23/2019 A 12,500 A $ 0 45,374 D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares Performance Shares ( 2 ) 01/23/2019 M 3,800 12/31/2018 12/31/2018 Common Stock 2,527 $ 0 0 D Employee Stock Option (Right to Buy) $ 2.655 01/23/2019 A 21,008 01/23/2020( 3 ) 01/23/2029 Common Stock 21,008 $ 0 21,008 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other ROSS CHRISTOPHER J 9227 CENTRE POINTE DRIVE WEST CHESTER, OH45069 VP & Treasurer Signatures /s/ Christopher J. Ross 01/25/2019 Signature of Reporting Person Date

Explanation of Responses:

( 1 )This represents Common Stock which was earned pursuant to a January 20, 2016 grant of Performance Shares. The Common Stock was issued at a conversion rate of 0.590 shares of Common Stock for each Performance Share awarded. ( 2 )This represents Common Stock which was earned pursuant to a January 20, 2016 grant of Performance Shares. The Common Stock was issued at a conversion rate of 0.665 shares of Common Stock for each Performance Share awarded. ( 3 )Options vest in three equal annual installments beginning one year after grant date.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

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