[Form 4] iANTHUS CAPITAL HOLDINGS, INC. Insider Trading Activity

Rhea-AI Filing Summary

Ware Jason Matthew reported acquisition or exercise transactions in this Form 4 filing.

iANTHUS CAPITAL HOLDINGS, INC. reported a Form 4 showing CFO Jason Matthew Ware received a grant of 78,947,368 restricted stock units under the company’s Amended and Restated Omnibus Incentive Plan. Each unit represents a contingent right to one common share or an equivalent cash amount after vesting.

The restricted stock units are scheduled to vest on the first anniversary of the grant date, subject to Ware’s continued service with the company. Shares or cash tied to vested units will be delivered within 73 days after the applicable vesting date. Following this grant, 78,947,368 units are reported as directly held.

Insider Trade Summary

Net Buyer: 78,947,368 shares

Net Buy 1 txn

Insider Ware Jason Matthew

Role CFO

Type	Security	Shares	Price	Value
Grant/Award	Common Shares	78,947,368	$0.00	$0.00

Holdings After Transaction: Common Shares — 78,947,368 shares (Direct)

Footnotes (1)

1. F1. Represents a grant of restricted stock units pursuant to the Issuer's Amended and Restated Omnibus Incentive Plan dated October 15, 2018 (the "Plan"). Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock following vesting. The restricted stock units are scheduled to vest on the first anniversary of the date of the grant, subject to the reporting person's continued service with the Issuer. The shares (or, in the sole discretion of the Issuer, cash in the amount equal to the Fair Market Value (as defined in the Plan) of such shares on the delivery date) subject to any vested restricted stock units shall be delivered to the reporting person within 73 days following the vesting date applicable to such restricted stock units.

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Form 4 Insider Transactions: What Each Field Means →

Accepted by SEC EDGAR 05/15/2026 - 04:28 PM Learn about SEC filing dates

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^*

Ware Jason Matthew

(Last) (First) (Middle)

C/O IANTHUS CAPITAL HOLDINGS, INC.

214 KING STREET WEST, SUITE 400

(Street)

TORONTO ONTARIO, CANADA M5H 3S6

(City) (State) (Zip)

ONTARIO, CANADA

(Country)

2. Issuer Name and Ticker or Trading Symbol
iANTHUS CAPITAL HOLDINGS, INC. [ ITHUF ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	CFO

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/15/2026

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)
			Code	V	Amount	(A) or (D)	Price
Common Shares	05/15/2026		A		78,947,368(1)	A	$0	78,947,368	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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Represents a grant of restricted stock units pursuant to the Issuer's Amended and Restated Omnibus Incentive Plan dated October 15, 2018 (the "Plan"). Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock following vesting. The restricted stock units are scheduled to vest on the first anniversary of the date of the grant, subject to the reporting person's continued service with the Issuer. The shares (or, in the sole discretion of the Issuer, cash in the amount equal to the Fair Market Value (as defined in the Plan) of such shares on the delivery date) subject to any vested restricted stock units shall be delivered to the reporting person within 73 days following the vesting date applicable to such restricted stock units.

	Jason Ware	05/15/2026
	** 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)