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 *
BDT CAPITAL PARTNERS, LLC
  2. Issuer Name and Ticker or Trading Symbol
Colfax CORP [CFX]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director __X__ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
(Last)
(First)
(Middle)
401 NORTH MICHIGAN AVENUE, SUITE 3100
3. Date of Earliest Transaction (Month/Day/Year)
05/16/2012
(Street)

CHICAGO, IL 60611
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
Common Stock 05/16/2012   A   1,383 A $ 0 6,939 I See footnote 1 (1)
Common Stock               14,756,945 I See footnote 2 (2)

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
Series A Perpetual Convertible Preferred Stock $ 27.93               (3)   (3) Common Stock 12,173,291   12,173,291 I See footnote 2 (2)
Director Stock Option (right to buy) $ 28.92 05/16/2012   A   3,458   05/16/2012 05/15/2019 Common Stock, par value $.001 3,458 $ 0 3,458 I See footnote 1 (1)

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
BDT CAPITAL PARTNERS, LLC
401 NORTH MICHIGAN AVENUE
SUITE 3100
CHICAGO, IL 60611
  X   X    
BDTCP GP I, LLC
401 NORTH MICHIGAN AVENUE
SUITE 3100
CHICAGO, IL 60611
  X   X    
BDT CF ACQUISITION VEHICLE, LLC
401 NORTH MICHIGAN AVENUE
SUITE 3100
CHICAGO, IL 60611
  X   X    
BDTP GP, LLC
401 NORTH MICHIGAN AVENUE
SUITE 3100
CHICAGO, IL 60611
  X   X    
Trott Byron D
401 NORTH MICHIGAN AVENUE
SUITE 3100
CHICAGO, IL 60611
  X   X    

Signatures

 /s/ Byron D. Trott (on behalf of himself and each other reporting person hereunder)   05/18/2012
**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 transactions reported on this Form 4 were the grant of restricted stock units and stock options to San W. Orr, III in connection with his service on the Board of Directors of Colfax Corp. (the "Issuer"). Mr. Orr is a Partner and the Chief Operating Officer of BDT CP. Mr. Orr was designated for election to the Issuer's Board of Directors pursuant to the Issuer's Amended and Restated Certificate of Incorporation, which provides the Investor the right, among other things, to exclusively nominate for election to the Board of Directors up to 2 of 11 directors based on the current beneficial ownership of the Investor. As a result, each of the Reporting Persons are (or may be deemed to be) directors by deputization.
(2) This Form 4 is jointly filed by (i) BDT Capital Partners, LLC ("BDT CP"), (ii) BDTCP GP I, LLC ("BDTCP GP I"), (iii) BDT CF Acquisition Vehicle, LLC (the "Investor"); (iv) Byron D. Trott, and (v) BDTP GP, LLC ("BDTP"). Mr. Trott is the sole member of BDTP, which is the managing member of BDT CP. BDT CP is the manager of BDTCP GP I, which is the manager of the Investor. Each of Mr. Trott, BDTP, BDT CP and BDTCP GP I, by virtue of his or its direct or indirect control of the Investor, may be deemed to beneficially own the securities reported as being held by the Investor. Each of the Reporting Persons disclaims beneficial ownership of the reported securities except to the extent of his or its pecuniary interests therein. This Form 4 shall not be deemed to be an admission that any Reporting Person hereunder is the beneficial owner of any of the reported securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.
(3) The shares of Series A Perpetual Convertible Preferred Stock are convertible into shares of Common Stock at any time and do not expire.

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