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
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(Print or Type Responses)
1. Name and Address of Reporting Person *
SIMMONS HAROLD C
  2. Issuer Name and Ticker or Trading Symbol
TITANIUM METALS CORP [TIE]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director __X__ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Chairman of the Board
(Last)
(First)
(Middle)
5430 LBJ FREEWAY, SUITE 1700
3. Date of Earliest Transaction (Month/Day/Year)
12/31/2010
(Street)

DALLAS, TX 75240
4. If Amendment, Date Original Filed(Month/Day/Year)
6. Individual or Joint/Group Filing(Check Applicable Line)
___ Form filed by One Reporting Person
_X_ 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, $.01 par value 12/31/2010   J(1)   4,870 A $ 17.14 2,692,370 I by Kronos (2)
Common Stock, $.01 par value 12/31/2010   J(1)   10,897 A $ 17.15 2,703,267 I by Kronos (2)
Common Stock, $.01 par value 12/31/2010   J(1)   300 A $ 17.175 2,703,567 I by Kronos (2)
Common Stock, $.01 par value 12/31/2010   J(1)   250 A $ 17.1795 2,703,817 I by Kronos (2)
Common Stock, $.01 par value 12/31/2010   J(1)   150 A $ 17.1796 2,703,967 I by Kronos (2)
Common Stock, $.01 par value 12/31/2010   J(1)   4,100 A $ 17.18 2,708,067 I by Kronos (2)
Common Stock, $.01 par value 12/31/2010   J(1)   100 A $ 17.1899 2,708,167 I by Kronos (2)
Common Stock, $.01 par value 12/31/2010   J(1)   3,899 A $ 17.19 2,712,066 I by Kronos (2)
Common Stock, $.01 par value 12/31/2010   J(1)   9,461 A $ 17.2 2,721,527 I by Kronos (2)
Common Stock, $.01 par value 12/31/2010   J(1)   200 A $ 17.2199 2,721,727 I by Kronos (2)
Common Stock, $.01 par value 12/31/2010   J(1)   4,319 A $ 17.22 2,726,046 I by Kronos (2)
Common Stock, $.01 par value 12/31/2010   J(1)   100 A $ 17.2299 2,726,146 I by Kronos (2)
Common Stock, $.01 par value 12/31/2010   J(1)   6,482 A $ 17.23 2,732,628 I by Kronos (2)
Common Stock, $.01 par value 12/31/2010   J(1)   23 A $ 17.235 2,732,651 I by Kronos (2)
Common Stock, $.01 par value 12/31/2010   J(1)   2,649 A $ 17.24 2,735,300 I by Kronos (2)
Common Stock, $.01 par value               44,878,081 I by VHC (3)
Common Stock, $.01 par value               21,825,875 I by Spouse (4)
Common Stock, $.01 par value               5,628,787 D  
Common Stock, $.01 par value               882,568 I by NL (5)
Common Stock, $.01 par value               826,959 I by Valhi (6)
Common Stock, $.01 par value               707,355 I by Contran (7)
Common Stock, $.01 par value               566,529 I by NL EMS (8)

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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

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
SIMMONS HAROLD C
5430 LBJ FREEWAY, SUITE 1700
DALLAS, TX 75240
  X   X   Chairman of the Board  
CONTRAN CORP
5430 LBJ FREEWAY, SUITE 1700
DALLAS, TX 75240
    X    
VALHI HOLDING CO
5430 LBJ FREEWAY, SUITE 1700
DALLAS, TX 75240
    X    
DIXIE RICE AGRICULTURE CORP INC
5430 LBJ FREEWAY, SUITE 1700
DALLAS, TX 75240
    X    

Signatures

 A. Andrew R. Louis, Attorney-in-fact, for Harold C. Simmons   01/03/2011
**Signature of Reporting Person Date

 A. Andrew R. Louis, Secretary, for Contran Corporation   01/03/2011
**Signature of Reporting Person Date

 A. Andrew R. Louis, Secretary, for Valhi Holding Company   01/03/2011
**Signature of Reporting Person Date

 A. Andrew R. Louis, Secretary, for Dixie Rice Agricultural Corporation, Inc.   01/03/2011
**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) Open market purchase by Kronos Worldwide, Inc. See the Additional Information filed as Exhibit 99 to this statement for a description of the relationships to the persons joining in this filing.
(2) Directly held by Kronos Worldwide, Inc. See the Additional Information filed as Exhibit 99 to this statement for a description of the relationships to the persons joining in this filing.
(3) Directly held by Valhi Holding Company. See the Additional Information filed as Exhibit 99 to this statement for a description of the relationships to the persons joining in this filing.
(4) Directly held by the reporting person's spouse. Mr. Simmons disclaims beneficial ownership of any shares of the issuer's common stock that his spouse holds. See the Additional Information filed as Exhibit 99 to this statement for a description of the relationships to the persons joining in this filing.
(5) Directly held by NL Industries, Inc. See the Additional Information filed as Exhibit 99 to this statement for a description of the relationships to the persons joining in this filing.
(6) Directly held by Valhi, Inc. See the Additional Information filed as Exhibit 99 to this statement for a description of the relationships to the persons joining in this filing.
(7) Directly held by Contran Corporation. See the Additional Information filed as Exhibit 99 to this statement for a description of the relationships to the persons joining in this filing.
(8) Directly held by NL Environmental Management Services, Inc. See the Additional Information filed as Exhibit 99 to this statement for a description of the relationships to the persons joining in this filing.
 
Remarks:
Exhibit Index
Exhibit 99 - Additional Information

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