X0306 4 2018-06-06 0 0000921582 IMAX CORP IMAX 0001132859 DOUGLAS KEVIN 125 E. SIR FRANCIS DRAKE BLVD., STE 400 LARKSPUR CA 94939 1 0 1 1 13(d)(3) group 0001268475 JAMES & JEAN DOUGLAS IRREVOCABLE DESCENDANTS TRUST 125 E. SIR FRANCIS DRAKE BLVD., STE 400 LARKSPUR 94939 0 0 1 1 13(d)(3) group 0001268476 DOUGLAS JAMES E III 125 E. SIR FRANCIS DRAKE BLVD., STE 400 LARKSPUR CA 94939 0 0 1 1 13(d)(3) group 0001268474 DOUGLAS FAMILY TRUST 125 E. SIR FRANCIS DRAKE BLVD., STE 400 LARKSPUR CA 94939 0 0 1 1 13(d)(3) group Common Stock 2018-06-06 4 A 0 5787 0.00 A 3939603 D Common Stock 2584441 I By James Douglas and Jean Douglas Irrevocable Descendants' Trust Common Stock 1451989 I By Douglas Family Trust Common Stock 923645 I By James E. Douglas III These securities are held directly and jointly by Kevin Douglas and his wife, Michelle Douglas. Each of the reporting persons hereunder (individually, a "Reporting Person" and collectively the "Reporting Persons") may be deemed a member of a "group" within the meaning of Section 13(d)(3) of the Securities and Exchange Act of 1934, as amended (the "Exchange Act") or Rule 13d-5 promulgated under the Exchange Act, with one or more of the other Reporting Persons. Although the Reporting Persons are reporting such securities as if they were members of a "group", the filing of this Form 4 shall not be deemed an admission by any Reporting Person that such Reporting Person is a beneficial owner of any securities other than those directly held by such Reporting Person. These securities are held directly by the James Douglas and Jean Douglas Irrevocable Descendants' Trust and indirectly by Kevin Douglas. Kevin Douglas and Michelle Douglas, husband and wife, are each a co-trustee of the James Douglas and Jean Douglas Irrevocable Descendants' Trust. These securities are held directly by the Douglas Family Trust and indirectly by Kevin Douglas. James E. Douglas and Jean A. Douglas, husband and wife, are each a co-trustee of the Douglas Family Trust. These securities are held directly by James E. Douglas III and indirectly by Kevin Douglas. Includes 62,652 shares held by an intentionally defective grantor trust (the "KGD IDGT"). Kevin Douglas, as the settlor of the KGD IDGT, has the right to substitute property of equivalent value in return for the shares held by the KGD IDGT and may be deemed to have shared voting and dispositive power over the shares held by the KGD IDGT. Includes 62,652 shares held by an intentionally defective grantor trust (the "MMD IDGT"). Michelle Douglas, as the settlor of the MMD IDGT, has the right to substitute property of equivalent value in return for the shares held by the MMD IDGT and may be deemed to have shared voting and dispositive power over the shares held by the MMD IDGT. Restricted stock units granted to Kevin Douglas which were vested on the date of grant. /s/ Eileen Wheatman, attorney in fact for Kevin Douglas 2018-06-07 /s/ Eileen Wheatman, attorney in fact for Douglas Family Trust 2018-06-07 /s/ Eileen Wheatman, attorney in fact for James Douglas and Jean Douglas Irrevocable Descendants' Trust 2018-06-07 /s/ Eileen Wheatman, attorney in fact for James E. Douglas III 2018-06-07