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
OMB APPROVAL
OMB Number: 3235-0287
Expires: January 31, 2005
Estimated average burden hours per response... 0.5

(Print or Type Responses)
1. Name and Address of Reporting Person *
JLL Patheon Holdings, Cooperatief U.A.
  2. Issuer Name and Ticker or Trading Symbol
PATHEON INC [PTI]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director __X__ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
(Last)
(First)
(Middle)
C/O JLL PARTNERS, INC., 450 LEXINGTON AVENUE, 31ST FLOOR
3. Date of Earliest Transaction (Month/Day/Year)
03/13/2013
(Street)

NEW YORK, NY 10017
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
Restricted Voting Shares 03/13/2013   P   98,900 A $ 3.79 (1) 78,243,886 D (2) (3) (4)  
Restricted Voting Shares 03/14/2013   P   132,500 A $ 3.81 (5) 78,376,386 D (2) (3) (4)  
Restricted Voting Shares 03/15/2013   P   148,600 A $ 3.91 (6) 78,524,986 D (2) (3) (4)  

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 1474 (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 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
JLL Patheon Holdings, Cooperatief U.A.
C/O JLL PARTNERS, INC.
450 LEXINGTON AVENUE, 31ST FLOOR
NEW YORK, NY 10017
    X    
JLL Patheon Holdings LLC
450 LEXINGTON AVENUE, 31ST FLOOR
NEW YORK, NY 10017
    X    
JLL Partners Associates GP V (Patheon), Ltd.
450 LEXINGTON AVENUE, 31ST FLOOR
NEW YORK, NY 10017
    X    
JLL Partners Fund V (Patheon), L.P.
450 LEXINGTON AVENUE, 31ST FLOOR
NEW YORK, NY 10017
    X    
JLL Associates V (Patheon), L.P.
450 LEXINGTON AVENUE, 31ST FLOOR
NEW YORK, NY 10017
    X    
Agroskin Daniel
450 LEXINGON AVENUE, 31ST FLOOR
NEW YORK, NY 10017
  X   X    
CASTALDI ALEXANDER R
450 LEXINGTON AVENUE, 31ST FLOOR
NEW YORK, NY 10017
    X    

Signatures

 /s/ Megan A. Bombick, attorney-in-fact   03/15/2013
**Signature of Reporting Person Date

 /s/ Megan A. Bombick, attorney-in-fact   03/15/2013
**Signature of Reporting Person Date

 /s/ Megan A. Bombick, attorney-in-fact   03/15/2013
**Signature of Reporting Person Date

 /s/ Megan A. Bombick, attorney-in-fact   03/15/2013
**Signature of Reporting Person Date

 /s/ Megan A. Bombick, attorney-in-fact   03/15/2013
**Signature of Reporting Person Date

 /s/ Megan A. Bombick, attorney-in-fact   03/15/2013
**Signature of Reporting Person Date

 /s/ Megan A. Bombick, attorney-in-fact   03/15/2013
**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 price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $3.69 to $3.75, as converted from C$3.79 to C$3.85 using the closing rate of exchange from Reuters on March 13, 2013. The Reporting Persons undertake to provide to Patheon Inc., any security holder of Patheon Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in footnotes (1), (5) and (6) to this Form 4.
(2) This report is filed jointly by JLL Patheon Holdings, Cooperatief U.A. ("JLL CoOp"); JLL Patheon Holdings, LLC; JLL Partners Fund V (Patheon), L.P.; JLL Associates V (Patheon), L.P.; JLL Associates G.P. V (Patheon), Ltd. ("JLL Limited"); Paul S. Levy; Daniel Agroskin; Nicholas O'Leary; Eugene Hahn; Michael J. Schwartz; Frank J. Rodriguez; Alexander R. Castaldi; Kevin T. Hammond; Michel Lagarde; Thomas Taylor; and Brett N. Milgrim (each, a "Reporting Person" and, collectively, the "Reporting Persons") in connection with their respective direct or indirect relationships with Patheon Inc. (the "Company").
(3) JLL Limited is the sole general partner of JLL Associates V (Patheon), L.P., which is the sole general partner of JLL Partners Fund V (Patheon), L.P., which in turn is the sole member of JLL Patheon Holdings, LLC. JLL Patheon Holdings, LLC is the greater than 99% owner and controlling member of JLL CoOp. The following Reporting Persons serve on the board of directors of JLL Limited: Paul S. Levy; Daniel Agroskin; Nicholas O'Leary; Thomas Taylor; Eugene Hahn; Michael J. Schwartz; Frank J. Rodriguez; Alexander R. Castaldi; Kevin T. Hammond; Michel Lagarde; and Brett N. Milgrim. Mr. Agroskin is also a managing director of JLL CoOp.
(4) JLL CoOp is the direct beneficial owner of 78,524,986 restricted voting shares (the "Restricted Voting Shares") of the Company. Each Reporting Person other than JLL CoOp may be deemed to be the indirect beneficial owner of 78,524,986 Restricted Voting Shares, however, each Reporting Person, other than JLL CoOp, disclaims beneficial ownership of these securities except to the extent of such Reporting Person's pecuniary interest therein, and this report shall not be deemed an admission that any of these reporting persons is the beneficial owner of the securities for purposes of Section 16 or for any other purpose.
(5) The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $3.71 to $3.86, as converted from C$3.79 to C$3.95 using the closing rate of exchange from Reuters on March 14, 2013.
(6) The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $3.79 to $4.02, as converted from C$3.86 to C$4.10 using the closing rate of exchange from Reuters on March 15, 2013.
 
Remarks:
This Form 4 is being filed in two parts because of the electronic filing system's limitation to ten reporting persons.  This is part 1 of 2.

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB number.