Sec Form 4 Filing - GELFOND RICHARD L @ IMAX CORP - 2018-12-31

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 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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1. Name and Address of Reporting Person GELFOND RICHARD L 2. Issuer Name and Ticker or Trading Symbol IMAX CORP [ IMAX] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) Chief Executive Officer (Last) (First) (Middle) 902 BROADWAY, 20TH FLOOR 3. Date of Earliest Transaction (MM/DD/YY) 12/31/2018 (Street) NEW YORK10010-6002 4. If Amendment, Date Original Filed (MM/DD/YY) 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 (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 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) 235,154 D common shares 12/31/2018 M 21,761 ( 1 ) A $ 0 256,915 D common shares 12/31/2018 F 11,636 ( 2 ) D $ 18.18 245,279 ( 3 ) D

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 (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 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 (MM/DD/YY) 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 ( 4 ) ( 5 ) 12/31/2018 M 21,761 ( 1 ) 12/31/2018 01/31/2020 common shares 21,761 ( 5 ) 65,283 ( 3 ) D stock options (to buy) $ 18.75 01/02/2019 A 522,979 ( 6 ) ( 7 ) 01/02/2029 common shares opening balance 522,979 $ 18.75 522,979 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other GELFOND RICHARD L 902 BROADWAY 20TH FLOOR NEW YORK10010-6002 X Chief Executive Officer Signatures Richard L. Gelfond 01/03/2019 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Represents the conversion upon vesting of restricted share units into common shares. ( 2 )Mr. Gelfond is reporting the withholding of common shares by IMAX Corporation to satisfy his tax withholding obligations in connection with the delivery of common shares upon conversion of the restricted share unit ( 3 )This represents the number of restricted share units or stock options for this transaction only. Mr. Gelfond's aggregate remaining outstanding option, restricted share unit and common share balances following these transaction will be 3,396,343; 65,283 and 245,279 respectively. ( 4 )Each restricted share unit represents a contingent right to receive one common share of IMAX Corporation. ( 5 )Each restricted share unit is the economic equivalent of one common share of IMAX Corporation. ( 6 )The stock options were granted pursuant to Mr. Gelfond's November 2016 employment renewal with IMAX Corporation. ( 7 )The stock options become exercisable in three installments: 174,326 on each of May 1, 2019; September 1, 2019 and 174,327 on December 31, 2019.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

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