[4] – Parkinson David Ross (CIK 0001451935)

Rhea-AI Filing Summary

ESSA Pharma (EPIX) reported an insider transaction: President and CEO David Parkinson, also a director, disposed of 65,675 common shares on October 9, 2025. The transaction occurred in connection with a business combination under which the purchaser acquired all issued and outstanding common shares for approximately US$0.12 per share plus one CVR per share entitling holders to receive up to approximately US$0.14 per CVR.

Following the transaction, the filing lists 0 shares beneficially owned.

Insights

M&A and Insider Reporting Analyst

Form 4 shows merger-driven share disposition at cash plus CVR terms.

The Form 4 records the CEO’s disposition of 65,675 shares on October 9, 2025, tied to a completed business combination. Per the agreement, each share received approximately US$0.12 in cash and one CVR that may pay up to approximately US$0.14.

This is a standard merger cash‑out for equity holders rather than an open‑market trade. The filing lists 0 shares beneficially owned afterward. Actual CVR value depends on its future payout terms as defined in the agreement.

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

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

1. Name and Address of Reporting Person^*

Parkinson David Ross

(Last) (First) (Middle)

C/O ESSA PHARMA INC.

999 WEST BROADWAY, SUITE 720

(Street)

VANCOUVER A1 V5Z 1K5

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
ESSA Pharma Inc. [ EPIX ]

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

X	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	President and CEO

3. Date of Earliest Transaction (Month/Day/Year)
10/09/2025

4. If Amendment, Date of 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

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	10/09/2025		D		65,675	D	(1)	0	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. On October 9, 2025, pursuant to that certain Business Combination Agreement, dated July 13, 2025 (as amended by the Amendment Agreement, dated September 23, 2025, the "Agreement"), by and among the Issuer, XenoTherapeutics, Inc., Xeno Acquisition Corp. ("Purchaser") and XOMA Royalty Corporation, the Purchaser acquired all of the issued and outstanding common shares of the Issuer for (i) cash consideration of approximately US$0.12 per share and (ii) one contingent value right ("CVR") for each common share entitling its holder to receive up to approximately US$0.14 per CVR and payable within specified periods following the close of the transactions contemplated by the Agreement.

	/s/ David Parkinson	10/15/2025
	** 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.

FAQ

What did ESSA Pharma (EPIX) disclose in this Form 4?

The President and CEO, David Parkinson, disposed of 65,675 common shares on October 9, 2025 in connection with a business combination.

What consideration did EPIX shareholders receive in the transaction?

Each common share received approximately US$0.12 in cash plus one CVR that may pay up to approximately US$0.14.

How many EPIX shares does the reporting person own after the transaction?

The filing shows 0 shares beneficially owned following the reported transaction.

What is the date of the earliest reportable transaction on the Form 4?

The earliest transaction date is October 9, 2025.

What roles does the reporting person hold at ESSA Pharma (EPIX)?

David Parkinson is listed as President and CEO and a Director.

What is a CVR in this context?

A contingent value right that entitles each holder to receive up to approximately US$0.14 per CVR, per the agreement.