What are the key details of the restricted share units reported by IMAX (IMAX) director MacMillan?

MacMillan received a grant of 3,390 restricted share units in connection with his IMAX board membership. Each unit is economically equivalent to one common share and represents a contingent right to receive a share, vesting and converting on the grant date, June 11, 2026.

IMAX director gets 3,390 RSUs, covers taxes in shares

IMAX Corporation director Michael MacMillan reported routine equity compensation activity involving restricted share units and related tax withholding.

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Form Type

Rhea-AI Filing Summary

IMAX Corporation director Michael MacMillan reported routine equity compensation activity involving restricted share units and related tax withholding. On June 11, 2026, 3,390 restricted share units converted into 3,390 common shares, each unit being economically equivalent to one common share.

To cover tax withholding obligations tied to this conversion, 1,849 common shares were withheld and disposed of. Following these transactions, MacMillan directly holds 39,569 common shares and 3,390 restricted share units, which were granted in connection with his service on the IMAX board and vest and convert on the grant date.

Insider Trade Summary

3,390 shares exercised/converted

Exercise 5 txns

Insider MacMillan Michael

Role Director

Type	Security	Shares	Price	Value
Grant/Award	restricted share units	3,390	$0.00	$0.00
Exercise	restricted share units	3,390	$0.00	$0.00
Exercise	common shares	3,390	$0.00	$0.00
Exercise Price or Tax Liability	common shares	1,849	$42.12	$78K
holding	common shares (opening balance)	--	--	--

Holdings After Transaction: restricted share units — 0 contracts (Direct); common shares — 39,569 shares (Direct); common shares (opening balance) — 38,028 shares (Direct)

Footnotes (7)

F1. Represents the conversion upon vesting of restricted share units into common shares.
F2. Each restricted share unit is the economic equivalent of one common share of IMAX Corporation.
F3. Mr. MacMillan is reporting the withholding of common shares to satisfy the tax withholding obligations in connection with the delivery of common shares upon conversion of the restricted share unit.
F4. Each restricted share unit represents a contingent right to receive one common share of IMAX Corporation.
F5. Mr. MacMillan received a grant of restricted share units in connection with his membership on the IMAX Corporation Board of Directors.
F6. The restricted share units vest and convert to common shares on the date of grant, June 11, 2026.
F7. Pursuant to Instruction 4(C)(iii), this response has been left blank.

Key Figures

RSUs converted: 3,390 units Tax withholding shares: 1,849 shares Common shares held after: 39,569 shares +3 more

6 metrics

RSUs converted 3,390 units Restricted share units converting into common shares on June 11, 2026

Tax withholding shares 1,849 shares Common shares withheld to satisfy tax obligations on June 11, 2026

Common shares held after 39,569 shares Direct IMAX common share holdings following reported Form 4 transactions

RSUs held after 3,390 units Restricted share units held after grant in connection with board service

Exercise transactions 1 exercise, 3,390 shares Derivative exercise/conversion of restricted share units into common shares

Tax-withholding transactions 1 transaction, 1,849 shares Disposition to cover tax liabilities via delivery of common shares

Key Terms

restricted share units, tax withholding obligations, derivative security, contingent right

4 terms

tax withholding obligations financial

"Mr. MacMillan is reporting the withholding of common shares to satisfy the tax withholding obligations in connection with the delivery of common shares upon conversion of the restricted share unit."

derivative security financial

"Exercise or conversion of derivative security"

A derivative security is a financial contract whose value comes from the price or performance of something else, such as a stock, bond, commodity, or market index. For investors it acts like an insurance policy or a wager: it can be used to protect against losses, lock in prices, or amplify gains and losses, so it can change a portfolio’s risk and potential return without owning the underlying asset directly.

contingent right financial

"Each restricted share unit represents a contingent right to receive one common share of IMAX Corporation."

FAQ

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What did IMAX (IMAX) director Michael MacMillan report in this Form 4?

Michael MacMillan reported equity compensation activity involving restricted share units and related tax withholding. 3,390 restricted share units converted into 3,390 common shares, and 1,849 of those common shares were withheld to satisfy tax obligations.

How many IMAX (IMAX) shares does Michael MacMillan hold after these transactions?

After the reported transactions, Michael MacMillan directly holds 39,569 IMAX common shares. He also holds 3,390 restricted share units, each representing a contingent right to receive one additional IMAX common share, reflecting his ongoing equity-based board compensation.

Why were 1,849 IMAX (IMAX) shares withheld in Michael MacMillan’s Form 4 filing?

1,849 IMAX common shares were withheld to satisfy tax withholding obligations when restricted share units converted into common shares. This F-code transaction reflects payment of tax liability by delivering shares, not an open-market sale by the director.

Is Michael MacMillan’s IMAX (IMAX) Form 4 transaction an open-market trade?

The Form 4 does not report any open-market purchases or sales. It shows a derivative exercise, where restricted share units converted into common shares, and a tax-withholding disposition in which shares were withheld to cover taxes rather than sold into the market.

AI-generated analysis. How Rhea-AI works. Not financial advice.

Form 4 Insider Transactions: What Each Field Means →

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Accepted by SEC EDGAR 06/15/2026 - 04:15 PM

SEC Form 4

FORM 4

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
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

MacMillan Michael

(Last)

(First)

(Middle)

931 MANNING AVENUE

(Street)

TORONTO

M6G 2X5

(City)

(State)

(Zip)

ONTARIO, CANADA

(Country)

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
	Officer (give title below)	Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/11/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
common shares (opening balance)								38,028	D
common shares	06/11/2026		M		3,390⁽¹⁾	A	$0.00⁽²⁾	41,418	D
common shares	06/11/2026		F		1,849⁽³⁾	D	$42.12	39,569	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 (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 Securities Underlying Derivative Security (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: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
restricted share units⁽⁴⁾	$0.00⁽²⁾	06/11/2026		A		3,390⁽⁵⁾		⁽⁶⁾	⁽⁶⁾	common shares	3,390	⁽²⁾	3,390	D
restricted share units⁽⁴⁾	$0.00⁽²⁾	06/11/2026		M			3,390⁽¹⁾	⁽⁶⁾	⁽⁶⁾	common shares	3,390	⁽⁷⁾	0	D

Explanation of Responses:

1. Represents the conversion upon vesting of restricted share units into common shares.

2. Each restricted share unit is the economic equivalent of one common share of IMAX Corporation.

3. Mr. MacMillan is reporting the withholding of common shares to satisfy the tax withholding obligations in connection with the delivery of common shares upon conversion of the restricted share unit.

4. Each restricted share unit represents a contingent right to receive one common share of IMAX Corporation.

5. Mr. MacMillan received a grant of restricted share units in connection with his membership on the IMAX Corporation Board of Directors.

6. The restricted share units vest and convert to common shares on the date of grant, June 11, 2026.

7. Pursuant to Instruction 4(C)(iii), this response has been left blank.

Remarks:

	/s/ Michael MacMillan	06/15/2026
	** Signature of Reporting Person	Date
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).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
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 Number.
* Form 4: SEC 1474 (03-26)

Source: View Original Filing on SEC EDGAR