Company: ABUS
Filing Date: 2025-09-10
Form Type: 8-K
Source: 0001171843-25-005815
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Company: Arbutus Biopharma Corp
Filing Date: 2025-09-10
Form: 8-K
Item: Item 8.01
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Item 8.01. Other Events.

On September 9, 2025, the U. S. District Court for the District of New Jersey
issued a claim construction ruling in the lawsuit brought by Arbutus Biopharma Corporation and its licensee Genevant Sciences against
Pfizer Inc. and BioNTech SE (Pfizer/BioNTech) seeking damages for infringement of U. S. Patent Nos. 9,504,561, 8,492,359, 11,141,378, 11,298,320
and 11,318,098 in the manufacture and sale of Pfizer/BioNTech’s COVID-19 mRNA-based vaccines. A copy of the Court’s claim
construction order and opinion is filed herewith as Exhibit 99.1 and is incorporated by reference herein.

Item 9.01. Financial Statements and Exhibits.