SEC FORM 4SEC Form 4
FORM 4UNITED 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
checkbox uncheckedCheck this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
checkbox uncheckedCheck 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*
Sawhney Roger

(Last)(First)(Middle)
C/O ARBUTUS BIOPHARMA CORPORATION
701 VETERANS CIRCLE

(Street)
WARMINSTERPA18974

(City)(State)(Zip)
2. Issuer Name and Ticker or Trading Symbol
Arbutus Biopharma Corp [ ABUS ]
Foreign Trading Symbol
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
checkbox checkedDirector10% Owner
Officer (give title below)Other (specify below)
3. Date of Earliest Transaction (Month/Day/Year)
09/18/2026
4. If Amendment, Date of Original Filed (Month/Day/Year)
6. Individual or Joint/Group Filing (Check Applicable Line)
checkbox checkedForm 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)
CodeVAmount(A) or (D)Price
Common Shares09/18/2026M52,533A$3.3452,533D
Common Shares09/18/2026M78,800A$4.24131,333D
Common Shares09/18/2026F(1)100,508D$5.0730,825D
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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Stock Option (Right to Buy)$3.3409/18/2026M52,533 (2)08/04/2035Common Shares52,533$0105,067D
Stock Option (Right to Buy)$4.2409/18/2026M78,80006/08/2026(3)06/08/2036Common Shares78,800$00D
Explanation of Responses:
1. The Reporting Person exercised options on September 18, 2026. The Issuer withheld an aggregate of 100,508 shares otherwise issuable upon the exercises to satisfy the aggregate exercise prices.
2. The option, representing a right to purchase a total of 157,600 shares, vests over a three-year period, with 1/3rd of the total shares subject to the option vesting at each of the 1st, 2nd and 3rd anniversaries of the August 4, 2025 grant date, subject to the Reporting Person's continuous service as of each vesting date.
3. The option, representing a right to purchase a total of 78,800 shares, was fully vested and exercisable as of the June 8, 2026 grant date.
Remarks:
/s/ Tuan Nguyen as attorney-in-fact for Roger Sawhney09/23/2026
** Signature of Reporting PersonDate
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.