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 *
RUSSOLO PAOLO
   2. Issuer Name and Ticker or Trading Symbol
CAMBREX CORP [CBM] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
_____ Officer (give title below) __X__ Other (specify below)
President, Cambrex Profarmaco
(Last)
(First)
(Middle)
ONE MEADOWLANDS PLAZA		 3. Date of Earliest Transaction (Month/Day/Year)
05/23/2013
(Street)

EAST RUTHERFORD, NJ 07073		 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 05/23/2013   M   28,000 A $ 4.395 95,085 D  
Common Stock 05/23/2013   S   200 D $ 12.6 94,885 D  
Common Stock 05/23/2013   S   500 D $ 12.58 94,385 D  
Common Stock 05/23/2013   S   100 D $ 12.565 94,285 D  
Common Stock 05/23/2013   S   492 D $ 12.56 93,793 D  
Common Stock 05/23/2013   S   400 D $ 12.5401 93,393 D  
Common Stock 05/23/2013   S   5,605 D $ 12.54 87,788 D  
Common Stock 05/23/2013   S   500 D $ 12.5369 87,288 D  
Common Stock 05/23/2013   S   23 D $ 12.535 87,265 D  
Common Stock 05/23/2013   S   100 D $ 12.534 87,165 D  
Common Stock 05/23/2013   S   2,003 D $ 12.53 85,162 D  
Common Stock 05/23/2013   S   400 D $ 12.525 84,762 D  
Common Stock 05/23/2013   S   1,277 D $ 12.52 83,485 D  
Common Stock 05/23/2013   S   1,000 D $ 12.5199 82,485 D  
Common Stock 05/23/2013   S   2,000 D $ 12.5101 80,485 D  
Common Stock 05/23/2013   S   3,000 D $ 12.51 77,485 D  
Common Stock 05/23/2013   S   1,600 D $ 12.5001 75,885 D  
Common Stock 05/23/2013   S   8,800 D $ 12.5 67,085 D  
Common Stock 05/24/2013   M   22,000 A $ 4.395 89,085 D  
Common Stock 05/24/2013   S   1,392 D $ 12.6 87,693 D  
Common Stock 05/24/2013   S   286 D $ 12.59 87,407 D  
Common Stock 05/24/2013   S   508 D $ 12.58 86,899 D  
Common Stock 05/24/2013   S   100 D $ 12.575 86,799 D  
Common Stock 05/24/2013   S   100 D $ 12.57 86,699 D  
Common Stock 05/24/2013   S   100 D $ 12.5605 86,599 D  
Common Stock 05/24/2013   S   100 D $ 12.56 86,499 D  
Common Stock 05/24/2013   S   1,800 D $ 12.5543 84,699 D  
Common Stock 05/24/2013   S   42 D $ 12.5536 84,657 D  
Common Stock 05/24/2013   S   375 D $ 12.55 84,282 D  
Common Stock 05/24/2013   S   100 D $ 12.546 84,182 (2) D  

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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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
Stock Option (Right to Buy) $ 4.395 05/23/2013   M     28,000   (1) 10/27/2015 Common Stock 28,000 $ 0 22,000 D  
Stock Option (Right to Buy) $ 4.395 05/24/2013   M     22,000   (1) 10/24/2015 Common Stock 22,000 $ 0 0 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
RUSSOLO PAOLO
ONE MEADOWLANDS PLAZA
EAST RUTHERFORD, NJ 07073		       President, Cambrex Profarmaco

Signatures

 Linda Kresse for Paolo Russolo by POA   05/28/2013
**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) Exercisable in one-quarter increments on the anniversary date of the grant over four years.
(2) 200 shares at $12.5455; 100 shares at $12.544; 158 shares at $12.5415; 100 shares at $12.541; 2,000 shares at $12.5401; 1,900 shares at $12.54; 500 shares at $12.5384; 20 shares at $12.5336; 100 shares at $12.531; 3,300 shares at $12.53; 100 shares at $12.5236; 1,694 shares at $12.52; 1,145 at $12.5101; 1,094 shares at $12.51; 4,500 shares at $12.50; 186 shares at $12.48, all sales were on May 24, 2013. Amount of securities beneficially owned following reported transactions 67,085 shares directly held.

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