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 * RUBY G MARY   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) Chief Administrative Officer (Last) (First) (Middle) 2525 SPEAKMAN DRIVE, C/O IMAX CORPORATION 3. Date of Earliest Transaction (Month/Day/Year) 12/29/2017 (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)               10,855 D   common shares 12/29/2017   M   5,717 (1) A $ 0 (4) 16,572 D   common shares 12/29/2017   F   3,063 (2) D $ 23.15 13,509 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)

$ 0 (4)

12/29/2017

M

1,435 (1)

12/29/2017

12/01/2018

common shares

1,435

$ 0 (4)

0 (5)

D

restricted share units (3)

$ 0 (4)

12/29/2017

M

2,260 (1)

12/29/2017

12/01/2019

common shares

2,260

$ 0 (4)

0 (5)

D

restricted share units (3)

$ 0 (4)

12/29/2017

M

2,022 (1)

12/29/2017

01/01/2021

common shares

2,022

$ 0 (4)

867 (5)

D

restricted share units (3)

$ 0 (4)

12/31/2017

E

867 (6)

12/01/2020

01/01/2021

common shares

867

$ 0 (4)

0 (5)

D

options

$ 32.45

12/31/2017

E

1,050 (6)

03/07/2021

03/07/2024

common shares

1,050

$ 32.45

2,453 (5)

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
RUBY G MARY 2525 SPEAKMAN DRIVE C/O IMAX CORPORATION MISSISSAUGA, A6 L5K 1B1			Chief Administrative Officer

Signatures

G. Mary Ruby		01/02/2018
**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. Each tranche vested December 29, 2017 in connection with Ms. Ruby's retirement from IMAX Corporation.
(2)	Ms. Ruby is reporting the withholding by IMAX 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 for transactions reported on this Form 4 only. Ms. Ruby's aggregate remaining outstanding option, restricted share unit and common share balances following these transaction will be 56,196; 0 and 13,509 respectively.
(6)	Cancelled upon Ms Ruby's retirement from IMAX Corporation.

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.