SEC Form 4
FORM 4 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
or Section 30(h) of the Investment Company Act of 1940
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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
1. Name and Address of Reporting Person*
BRISIMITZAKIS ANGELO C

(Last) (First) (Middle)
9025 NORTH RIVER ROAD
SUITE 400

(Street)
INDIANAPOLIS IN 46240

(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
GREAT LAKES CHEMICAL CORP [ GLK ]
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
3. Date of Earliest Transaction (Month/Day/Year)
07/01/2005
4. If Amendment, Date of 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
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 07/01/2005 D 3,986 D (1) 0.00 D
Common 07/01/2005 D 1,388.908 D (1) 0.00 I By 401(k)(3)
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 Securities Underlying Derivative Security (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: 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
Restricted Stock Units $0.000 07/01/2005 D 8,000 05/03/2003(2) 05/03/2010 Common 8,000 $0.000 0.00 D
Restricted Stock Units $0.000 07/01/2005 D 15,000 02/08/2006(2) 02/08/2009 Common 15,000 $0.000 0.00 D
Stock Option (Right to Buy) $21.62 07/01/2005 D 35,000 02/11/2004(2) 02/11/2013 Common 35,000 $21.62 0.00 D
Stock Option (Right to Buy) $25.03 07/01/2005 D 35,000 02/14/2005(2) 02/14/2014 Common 35,000 $25.03 0.00 D
Stock Option (Right to Buy) $31.313 07/01/2005 D 12,500 02/13/2001(2) 02/13/2010 Common 12,500 $31.313 0.00 D
Stock Option (Right to Buy) $33.14 07/01/2005 D 17,500 02/11/2002(2) 02/11/2011 Common 17,500 $33.14 0.00 D
Stock Option (Right to Buy) $22 07/01/2005 D 30,000 02/11/2003(2) 02/11/2012 Common 30,000 $22 0.00 D
Stock Option (Right to Buy) $35.75 07/01/2005 D 4,000 02/15/2000(2) 02/15/2009 Common 4,000 $35.75 0.00 D
Stock Option (Right to Buy) $39.438 07/01/2005 D 10,000 08/03/1999(2) 08/03/2008 Common 10,000 $39.438 0.00 D
Explanation of Responses:
1. Disposed of pursuant to the Agreement and Plan of Merger, dated March 8, 2005 (the "Merger Agreement"), by and among Crompton Corporation ("Crompton"), Copernicus Merger Corporation and Great Lakes Chemical Corporation ("Great Lakes") in exchange for 2.2232 shares of Crompton common stock (the "Exchange Ratio") in accordance with the terms of the Merger Agreement having a market value of $14.15 on 6/30/2005.
2. This option, when granted, provided for vesting in 3 equal annual installments beginning on the first anniversary of the grant, and in accordance with its terms will become fully vested upon the consummation of the merger. Pursuant to the Merger Agreement, such options have been assumed by Crompton and will be exercisable for Crompton common stock based on the Exchange Ratio.
3. These securities were held in accordance with Great Lakes 401(k) savings plan and have been assumed by Crompton pursuant to the Exchange Ratio.
/s/ Karen Witte Duros 07/01/2005
** Signature of Reporting Person 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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
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