Ownership Submission
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 OF SECURITIES

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
OMB APPROVAL
OMB Number: 3235-0287
Expires: January 31, 2005
Estimated average burden hours per response... 0.5

(Print or Type Responses)
1. Name and Address of Reporting Person *
HILZINGER MATTHEW F
  2. Issuer Name and Ticker or Trading Symbol
USG CORP [USG]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Executive Vice President
(Last)
(First)
(Middle)
C/O USG CORPORATION, 550 WEST ADAMS STREET
3. Date of Earliest Transaction (Month/Day/Year)
02/13/2019
(Street)

CHICAGO, IL 60661
4. If Amendment, Date Original Filed(Month/Day/Year)
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 (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 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 02/13/2019   A   3,922 (1) (2) A $ 0 57,334 D  
Common Stock 02/13/2019   F   1,150 (3) D $ 43.17 56,184 D  
Common Stock 02/13/2019   M   8,018 (1) (4) A $ 0 64,202 D  
Common Stock 02/13/2019   F   2,432 (5) D $ 43.17 61,770 D  
Common Stock               36,175 I See Footnote (6)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number. SEC 1474 (9-02)

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 (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 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
(Month/Day/Year)
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
Market Share Units (1) (4) 02/13/2019   M     5,345   (1)(4)   (1)(4) Common Stock (1) (4) $ 0 0 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
HILZINGER MATTHEW F
C/O USG CORPORATION
550 WEST ADAMS STREET
CHICAGO, IL 60661
      Executive Vice President  

Signatures

 /s/ Jonathan Dorfman, Attorney-In-Fact   02/14/2019
**Signature of Reporting Person Date

Explanation of Responses:

* 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).
(1) As previously disclosed, on November 8, 2018, the Board of Directors (the "Board") of USG Corporation (the "Company") approved the acceleration of the vesting of 90% of the Market Share Units and Performance Shares granted to the reporting person in 2016, as determined based on achievement of specified performance metrics, that were otherwise scheduled to vest between January 1, 2019 and March 30, 2019. Such accelerated Market Share Units and Performance Shares vested on December 26, 2018. The Board approved the accelerated vesting of such grants in order to mitigate the potential impact of Section 280G of the Internal Revenue Code of 1986, as amended, on the Company and the reporting person in connection with the pending merger of an indirect wholly-owned subsidiary of Gebr. Knauf KG with and into the Company. The transactions reported in this Form 4 represent the vesting of the remaining 10% of the Market Share Units and Performance Shares granted to the reporting person in 2016.
(2) These Performance Shares were granted on February 10, 2016. The Board certified performance of these Performance Shares on February 13, 2019.
(3) Shares withheld to satisfy tax withholding obligation with respect to Performance Shares that became earned.
(4) These Market Share Units were granted on February 10, 2016. The Board certified performance of these Market Share Units on February 13, 2019 and the Company issued to the reporting person 1.5 shares of the Company's common stock for the Market Share Units originally granted, based on the closing prices of shares of the Company's common stock on the New York Stock Exchange for the first fifteen trading days in January 2019.
(5) Shares withheld to satisfy tax withholding obligation with respect to Market Share Units that became earned.
(6) Shares are held by M&S Hilzinger Family, LP, a limited partnership of which the reporting person and his wife, through their ownership in M&S Hilzinger Family GP, LLC, are the sole general partners and of which the reporting person and his wife are the sole limited partners.

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB number.