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 *
Mancuso Antonella
   2. Issuer Name and Ticker or Trading Symbol
PATHEON INC [PTI] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
President, Glbl Commercial Ops
(Last)
(First)
(Middle)
VIALE GB STUCCHI 110		 3. Date of Earliest Transaction (Month/Day/Year)
04/03/2013
(Street)

MONZA, L6 20900		 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
Restricted Voting Shares 04/03/2013   M   49,748 A $ 3.2 (1) 49,748 D  
Restricted Voting Shares 04/03/2013   M   50,000 A $ 2.54 (2) 99,748 D  
Restricted Voting Shares 04/03/2013   M   42,000 A $ 2.55 (3) 141,748 D  
Restricted Voting Shares 04/03/2013   M   45,600 A $ 2.56 (4) 187,348 D  
Restricted Voting Shares 04/03/2013   M   13,250 A $ 1.82 (5) 200,598 D  
Restricted Voting Shares 04/03/2013   S   200,598 D $ 4.09 (6) 0 D  

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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
Employee Stock Option (right to buy) $ 3.2 (1) 04/03/2013   M     49,748   (7) 01/21/2015 Restricted Voting Shares 49,748 $ 0 0 D  
Employee Stock Option (right to buy) $ 2.54 (2) 04/03/2013   M     50,000   (8) 10/26/2016 Restricted Voting Shares 50,000 $ 0 0 D  
Employee Stock Option (right to buy) $ 2.55 (3) 04/03/2013   M     42,000   (9) 03/17/2020 Restricted Voting Shares 42,000 $ 0 28,000 D  
Employee Stock Option (right to buy) $ 2.56 (4) 04/03/2013   M     45,600   (10) 06/15/2020 Restricted Voting Shares 45,600 $ 0 68,400 D  
Employee Stock Option (right to buy) $ 1.82 (5) 04/03/2013   M     13,250   (11) 03/13/2020 Restricted Voting Shares 13,250 $ 0 53,002 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
Mancuso Antonella
VIALE GB STUCCHI 110
MONZA, L6 20900		       President, Glbl Commercial Ops  

Signatures

 /s/ David S Field, Attorney-in-fact   04/05/2013
**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) The exercise price was converted from C$3.25 based on the April 3, 2013 closing rate of exchange of 1.0143 Canadian dollars per U.S. dollars as quoted by Reuters.
(2) The exercise price was converted from C$2.58 based on the April 3, 2013 closing rate of exchange of 1.0143 Canadian dollars per U.S. dollars as quoted by Reuters.
(3) The exercise price was converted from C$2.59 based on the April 3, 2013 closing rate of exchange of 1.0143 Canadian dollars per U.S. dollars as quoted by Reuters.
(4) The exercise price was converted from C$2.60 based on the April 3, 2013 closing rate of exchange of 1.0143 Canadian dollars per U.S. dollars as quoted by Reuters.
(5) The exercise price was converted from C$1.85 based on the April 3, 2013 closing rate of exchange of 1.0143 Canadian dollars per U.S. dollars as quoted by Reuters.
(6) The sale price was converted from C$4.15 based on the April 3, 2013 closing rate of exchange of 1.0143 Canadian dollars per U.S. dollars as quoted by Reuters.
(7) The option vested in three equal annual installments on January 21, 2009, January 21, 2010 and January 21, 2011.
(8) The option vested in three equal annual installments on October 26, 2010, October 26, 2011 and October 26, 2012.
(9) The option vests in five equal annual installments on March 17, 2011, March 17, 2012, March 17, 2013, March 17, 2014 and March 17, 2015.
(10) The option vests in five equal annual installments on June 15, 2011, June 15, 2012, June 15, 2013, June 15, 2014 and June 15, 2015.
(11) The option vests in five equal annual installments on March 14, 2013, March 14, 2014, March 14, 2015, March 14, 2016 and March 14, 2017.

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