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 *
RALES MITCHELL P
   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)
11790 GLEN ROAD		 3. Date of Earliest Transaction (Month/Day/Year)
01/11/2019
(Street)

POTOMAC, MD 20854		 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, par value $.001 05/07/2018   G V 40,180 D $ 0 10,281,181 D  
Common Stock, par value $.001 06/08/2018   G V 11,073 D $ 0 10,270,108 D  
Common Stock, par value $.001 08/24/2018   G V 2,942 D $ 0 10,267,166 D  
Common Stock, par value $.001 10/29/2018   G V 4,297 D $ 0 10,262,869 D  
Common Stock, par value $.001               854,750 I Through the Mitchell P. Rales Family Trust (1)
Common Stock, par value $.001               19,388 I By Capital Yield Corporation (2)
Common Stock, par value $.001               4,200 I By MPR, as custodian for daughters
Common Stock, par value $.001               11,500 I By trust for daughter
Common Stock, par value $.001               28,000 I By spouse (3)

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
Tangible Equity Units (Right to Buy) (4) 01/11/2019   P   400,000     (5)   (5) Common Stock 1,440,000 (6) $ 100 400,000 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
RALES MITCHELL P
11790 GLEN ROAD
POTOMAC, MD 20854		   X   X    

Signatures

 /s/ A. Lynne Puckett, Attorney-in-Fact   01/15/2019
**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 reporting person is a trustee of the Mitchell P. Rales Family Trust.
(2) These shares are held by an entity of which Mitchell P. Rales and Steven M. Rales are the sole stockholders. The reporting person disclaims beneficial ownership of these securities to the extent that they are beneficially owned by Steven M. Rales.
(3) The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein. Neither this filing nor anything contained herein shall be deemed an admission that the reporting person is the beneficial owner of these securities for purposes of Section 13 of the Securities Exchange Act of 1934 or otherwise.
(4) In connection with the Issuer's offering of Tangible Equity Units ("TEUs"), the reporting person acquired 400,000 TEUs. Each TEU is comprised of (i) a prepaid stock purchase contract and (ii) a senior amortizing note due January 15, 2022. The prepaid stock purchase contract, which may be settled at any time by the holder, provides the holder the right to acquire shares of the Issuer's common stock. If a prepaid stock purchase contract is settled on or prior to January 15, 2020, the holder will receive 3.6 shares of common stock per contract. If a prepaid stock purchase contract is settled after January 15, 2020 but on or prior to January 15, 2021, the holder will receive 3.8 shares of common stock per contract. If a prepaid stock purchase contract is settled after January 15, 2021 but on or prior to the second trading day prior to January 15, 2022, the holder will receive 4 shares of common stock per contract.
(5) Each prepaid stock purchase contract may be settled at any time by the holder and in some circumstances may be redeemed by the Issuer. If not earlier settled or redeemed, on January 15, 2022 the prepaid stock purchase contracts will be settled automatically and each holder will receive not less than 4 shares of common stock per contract and not more than 4.8054 shares of common stock per contract, based on the applicable settlement rate and applicable market value of the common stock at settlement.
(6) The number of shares of common stock underlying the reporting person's TEUs is based on the amount that may be acquired if the prepaid stock purchase contracts were settled prior to January 15, 2020. The actual number of shares the reporting person may acquire will depend on when the prepaid stock purchase contracts are settled.

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