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 *
WELTON MARK
   2. Issuer Name and Ticker or Trading Symbol
IMAX CORP [IMAX] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
President, IMAX Theatres
(Last)
(First)
(Middle)
2525 SPEAKMAN DRIVE, C/O IMAX CORPORATION		 3. Date of Earliest Transaction (Month/Day/Year)
03/07/2018
(Street)

MISSISSAUGA, A6 L5K 1B1		 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 shares (opening balance)               9,710 D  
common shares 03/07/2018   M   4,415 (1) A $ 0 14,125 D  
common shares 03/07/2018   M   3,467 (1) A $ 0 17,592 D  
common shares 03/08/2018   S   4,226 (2) D $ 20.3985 13,366 D  

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
restricted share units (3) (4) 03/07/2018   M     4,415 (1) 03/07/2017 12/01/2019 common shares 4,415 (4) 9,713 (5) D  
restricted share units (3) (4) 03/07/2018   M     3,467 (1) 03/07/2017 01/01/2021 common shares 3,467 (4) 13,867 (5) D  
restricted share units (3) (4) 03/07/2018   A   35,971     (6) 12/31/2021 common shares 35,971 (4) 35,971 (5) D  
stock options (to buy) $ 20.85 03/07/2018   A   39,432     (7) 03/07/2025 common shares 39,432 $ 20.85 39,432 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
WELTON MARK
2525 SPEAKMAN DRIVE
C/O IMAX CORPORATION
MISSISSAUGA, A6 L5K 1B1		       President, IMAX Theatres  

Signatures

 Mark Welton   03/08/2018
**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) Represents the conversion upon vesting of restricted share units into common shares.
(2) Mr. Welton is reporting the sale of common shares to satisfy the tax withholding obligations in connection with the delivery of common shares upon conversion of the restricted share unit
(3) Each restricted share unit represents a contingent right to receive one common share of IMAX Corporation.
(4) Each restricted share unit is the economic equivalent of one common share of IMAX Corporation.
(5) This represents the number of restricted share units or stock options for this transaction only. Mr. Welton's aggregate remaining outstanding option, restricted share unit and common share balances following these transaction will be 225,854; 59,551 and 13,366 respectively.
(6) The restricted share units vest and will be converted to common shares in four installments 7,194 on March 7, 2019; 8,993 on each of March 7, 2020 and March 7, 2021 and 10,791 on December 1, 2021.
(7) The stock options become exercisable in four installments: 7,886 on March 7, 2019, 9,858 on each of March 7, 2020 and March 7, 2021 and 11,830 on March 7, 2022.

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.