Ownership Submission
FORM 5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
Form 3 Holdings Reported
Form 4 Transactions Reported
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

ANNUAL 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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1. Name and Address of Reporting Person *
PICCOLO C A
 2. Issuer Name and Ticker or Trading Symbol
Chemtura CORP [CEM] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director _____ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
(Last)
(First)
(Middle)

199 BENSON ROAD		 3. Statement for Issuer's Fiscal Year Ended (Month/Day/Year)
12/31/2005
(Street)


MIDDLEBURY, CT 06749		 4. If Amendment, Date Original Filed(Month/Day/Year)
 6. Individual or Joint/Group Reporting
(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 at end of Issuer's Fiscal Year
(Instr. 3 and 4)		 6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)		 7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Amount (A) or (D) Price
Common Stock             20,704 D  
Common Stock 01/16/2006 01/17/2006 J(1) 240 A $ 0 24,652 I DIR/RABBI TRUST
Common Stock 01/16/2006 01/17/2006 J(2) 238.2646 A $ 0 3,069.6574 I DRIP
Common Stock 01/16/2006 01/17/2006 J(3) 76 A $ 0 6,128 I Restricted Stock Account

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 2270 (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 at End of Issuer's Fiscal Year
(Instr. 4)		 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)		 11. Nature of Indirect Beneficial Ownership
(Instr. 4)
(A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
NQ Stock Option (Right to Buy) $ 6.38           01/21/2004 02/20/2013 Common Stock
8,229
  8,229
D
 
NQ Stock Option (Right to Buy) $ 7.25           10/22/2003 11/21/2012 Common Stock
9,655
  9,655
D
 
NQ Stock Option (Right to Buy) $ 7.92           10/23/2002 11/22/2011 Common Stock
8,838
  8,838
D
 
NQ Stock Option (Right to Buy) $ 8.1562           10/31/2001 11/30/2010 Common Stock
7,500
  7,500
D
 
NQ Stock Option (Right to Buy) $ 8.343           10/19/2000 10/19/2009 Common Stock
7,500
  7,500
D
 
NQ Stock Option (Right to Buy) $ 8.343           10/19/2000 11/19/2009 Common Stock
25,000
  25,000
D
 
NQ Stock Option (Right to Buy) $ 14.3438           09/01/2000 10/14/2008 Common Stock
5,752
  5,752
D
 
NQ Stock Option (Right to Buy) $ 14.5           08/04/1999 09/21/2006 Common Stock
10,000
  10,000
D
 
NQ Stock Option (Right to Buy) $ 16.875           08/04/1999 11/16/2006 Common Stock
2,963
  2,963
D
 
NQ Stock Option (Right to Buy) $ 26.4063           08/04/1999 11/07/2007 Common Stock
1,893
  1,893
D
 
NQ Stock Option (Right to Buy) $ 13 01/16/2006 01/17/2006 J(4)   1,538 08/04/1999 11/18/2005 Common Stock
0
$ 13 0
D
 
NQ Stock Option (Right to Buy) $ 16.0625 01/16/2006 01/17/2006 J(5)   1,245 08/04/1999 02/24/2005 Common Stock
0
$ 16.0625 0
D
 

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
PICCOLO C A
199 BENSON ROAD
MIDDLEBURY, CT 06749		   X      

Signatures

C.A. (Lance) Piccolo 01/18/2006
**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) These shares were acquired during the fiscal year pursuant to the Rabbi Trust Plan and through reinvestments of dividends paid on the shares in this fund.
(5) Expired by its term without exercise or payment.
(4) Expired by its term without exercise or payment.
(2) These shares were acquired during the fiscal year pursuant to the Registrant's Dividend Reinvestment Plan and through reinvestment of dividends paid on the shares in this fund.
(3) These shares were acquired during fiscal year pursuant to the Restricted Stock Account Plan and through reinvestment of dividends paid on these shares in this fund.

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