Welcome to our dedicated page for Arbutus Biopharm SEC filings (Ticker: ABUS), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
The Arbutus Biopharma Corporation (Nasdaq: ABUS) SEC filings page on Stock Titan provides access to the company’s regulatory disclosures as filed with the U.S. Securities and Exchange Commission. Arbutus is a clinical-stage biopharmaceutical company focused on infectious disease, particularly chronic hepatitis B virus (cHBV) infection, and its filings offer detailed insight into its operations, risks and strategic priorities.
Through current reports on Form 8-K, Arbutus discloses material events such as quarterly financial results, corporate updates, changes in directors and executive officers, and significant agreements. Recent 8-K filings referenced by the company include announcements of financial results for multiple quarters, the termination of a license agreement with Qilu Pharmaceutical resulting in the reacquisition of imdusiran rights in Greater China and Taiwan, and updates on patent litigation against Moderna and Pfizer/BioNTech related to lipid nanoparticle (LNP) technology used in COVID-19 vaccines.
Filings also document key legal milestones, including claim construction rulings in litigation against Pfizer/BioNTech and scheduling orders for jury trials in U.S. litigation against Moderna, as well as the initiation of international enforcement actions across numerous countries. These documents help investors understand how Arbutus and its licensee Genevant Sciences are seeking to protect and enforce LNP intellectual property.
On this page, users can review Arbutus’ 8-Ks and, via the SEC, its annual reports on Form 10-K and quarterly reports on Form 10-Q, which contain information on research and development expenses, restructuring charges, cash, cash equivalents and marketable securities, and other financial metrics. Stock Titan’s AI-powered tools can assist by summarizing lengthy filings, highlighting key sections related to cHBV clinical programs, LNP litigation, and corporate restructuring, and helping readers quickly identify items such as risk factor updates and material agreements.
For those researching ABUS stock, Arbutus’ hepatitis B pipeline, or the status of its LNP-related lawsuits, this SEC filings page serves as a structured entry point into the company’s official regulatory record, with real-time updates as new documents are posted to EDGAR.
Arbutus Biopharma (ABUS) filed its Q3 2025 report. Total revenue was $529,000, driven by $280,000 from collaborations and $249,000 of non-cash royalty revenue. Operating expenses were $9.2 million, reflecting lower R&D and G&A after earlier cost actions, and the company reported a net loss of $7.7 million, or $0.04 per share.
Year-to-date, revenue reached $13.0 million, primarily from recognizing $10.4 million of previously deferred revenue after terminating the Qilu license; net loss narrowed to $29.7 million. Cash, cash equivalents and marketable securities totaled $93.7 million as of September 30, 2025, with no debt, and management believes resources fund operations for at least the next 12 months. The company recorded $12.6 million of restructuring costs year-to-date tied to a 57% workforce reduction, exiting its headquarters, and discontinuing in-house research. As of November 11, 2025, 192,324,017 common shares were outstanding. Arbutus continues patent actions related to its LNP technology, with a U.S. trial against Moderna set for March 2026 and a September 2025 claim construction ruling in the Pfizer/BioNTech case that it considers favorable.
Arbutus Biopharma Corporation reported that three abstracts featuring imdusiran data and one abstract featuring AB-101 data have been accepted for poster presentations at the American Association for the Study of Liver Diseases – The Liver Meeting® 2025 in Washington, DC. The meeting is scheduled for November 7–11, 2025.
The company noted that the AB-101 abstract has been selected as a Poster of Distinction, highlighting it among the conference’s poster presentations. These details were originally shared in a press release dated October 7, 2025, which is attached as an exhibit.
Arbutus Biopharma Corporation reported that the U.S. District Court for the District of New Jersey issued a claim construction ruling in its ongoing patent lawsuit against Pfizer Inc. and BioNTech SE. The case, brought by Arbutus and its licensee Genevant Sciences, seeks damages for alleged infringement of several U.S. patents related to the manufacture and sale of Pfizer/BioNTech’s COVID-19 mRNA-based vaccines. The court’s detailed claim construction order and opinion, dated September 9, 2025, have been filed as an exhibit to this report, providing the interpretations that will guide how the patent claims are applied as the litigation continues.
Two Seas Capital and affiliated reporting persons disclosed beneficial ownership of 10,443,317 common shares of Arbutus Biopharma (symbol: ABUS), representing 5.4% of the outstanding class as of June 30, 2025. The stake is held in two funds — 7,472,841 shares in the Two Seas Global (Master) Fund and 2,970,476 shares in the Two Seas LNP Opportunities (Master) Fund — and the reporting persons state they have sole voting and sole dispositive power over all reported shares. The filing includes a certification that the securities are held in the ordinary course of business and were not acquired with the purpose of changing or influencing control of the issuer. The disclosure references a total share count of 191,641,511 common shares used to calculate the percentage.
ABUS Q2-25 showed a sharp swing to profitability as one-time license revenue and deep cost cuts outweighed lower investment income. Total revenue rose to $10.7 m from $1.7 m a year earlier, driven mainly by recognition of $9.6 m in deferred revenue after the June termination of the Qilu partnership, which also returns worldwide rights to imdusiran. Non-cash royalty revenue from Alnylam’s ONPATTRO contributed $0.5 m.
Operating expenses fell 60% YoY to $9.3 m following a 57% workforce reduction, facility exit and R&D scale-back; Q1 restructuring charges totaled $12.4 m. As a result, operating income reached $1.5 m versus a $21.6 m loss last year, and net income reached $2.5 m ($0.01/share) versus a $19.8 m loss. For the six months, the company still posted a $22.0 m loss, but cash burn declined (operating cash outflow $29.1 m vs $33.8 m).
Cash, cash equivalents and short-term securities were $98.1 m at 30-Jun-25 (down from $122.6 m at year-end) with no debt; management expects runway of ≥12 months. Total assets fell to $103.3 m, liabilities to $20.3 m and equity to $83.0 m. Contingent consideration stands at $10.8 m and the liability from royalty-sale to OMERS declined to $3.9 m.
Key catalysts include Phase 2 data from imdusiran combinations, ongoing Phase 1a/1b dosing of oral PD-L1 inhibitor AB-101, and patent litigation milestones against Moderna and Pfizer/BioNTech (trial in Mar-26). Cost-control measures and regained global rights position Arbutus for partnering, but termination of Qilu removes future milestone streams.
Arbutus Biopharma (NASDAQ:ABUS) announced the termination of its technology transfer and license agreement with Qilu Pharmaceutical Co., Ltd. The agreement, originally established in December 2021, granted Qilu exclusive rights to develop, manufacture, and commercialize imdusiran in Greater China and Taiwan.
The mutual termination, effective June 20, 2025, involves no financial payments and results in all rights for imdusiran in Greater China and Taiwan reverting to Arbutus. This decision aligns with Qilu's pipeline reprioritization and Arbutus's strategic focus on efficient pipeline advancement.