Institutional shares held 118 Million
1M calls
478K puts
Total value of holdings $401M
$3.4M calls
$1.63M puts
Market Cap $510M
149,951,008 Shares Out.
Institutional ownership 78.56%
# of Institutions 182


Latest Institutional Activity in ABUS

Top Purchases

Q2 2025
Adage Capital Partners Gp, L.L.C. Shares Held: 2.58M ($8.76M)
Q2 2025
Two Seas Capital LP Shares Held: 10.4M ($35.5M)
Q2 2025
Goldman Sachs Group Inc Shares Held: 3.04M ($10.3M)
Q2 2025
Ubs Asset Management Americas Inc Shares Held: 1.07M ($3.65M)
Q2 2025
Adar1 Capital Management, LLC Shares Held: 2.83M ($9.61M)

Top Sells

Q2 2025
Rangeley Capital, LLC Shares Held: 865K ($2.94M)
Q2 2025
Hudson Bay Capital Management LP Shares Held: 965K ($3.28M)
Q2 2025
Susquehanna International Group, LLP Shares Held: 219K ($746K)
Q2 2025
Woodline Partners LP Shares Held: 2.5M ($8.49M)
Q2 2025
Rubric Capital Management LP Shares Held: 1.58M ($5.36M)

About ABUS

Arbutus Biopharma Corporation, a biopharmaceutical company, develops novel therapeutics for chronic Hepatitis B virus (HBV) infection, SARS-CoV-2, and other coronaviruses in the United States. Its HBV product pipeline consists of AB-729, a proprietary subcutaneously delivered RNA interference product candidate, which in Phase Ia/Ib clinical trial targeted to hepatocytes that inhibits viral replication and reduces various HBV antigens using novel covalently conjugated N-acetylgalactosamine (GalNAc) delivery technology; and AB-836, an oral capsid inhibitor that suppresses HBV DNA replication. The company's research and development programs include AB-161, an oral HBV RNA destabilizer to destabilize HBV RNA, which leads in the reduction of HBsAg and other viral proteins; AB-101, an oral PD-L1 inhibitor to reawaken patients' HBV-specific immune response; and small molecule antiviral medicines to treat coronaviruses, including COVID-19. It has strategic alliance, licensing, and research collaboration agreements with Talon Therapeutics, Inc.; Gritstone Oncology, Inc.; Alnylam Pharmaceuticals, Inc.; Qilu Pharmaceuticals Co, Ltd.; Assembly Biosciences, Inc.; Acuitas Therapeutics, Inc.; and Antios Therapeutics, Inc. Arbutus Biopharma Corporation also has a clinical collaboration agreement with Vaccitech plc to evaluate a triple combination of AB-729 for the treatment of chronic HBV infection. The company was formerly known as Tekmira Pharmaceuticals Corporation and changed its name to Arbutus Biopharma Corporation in July 2015. Arbutus Biopharma Corporation is headquartered in Warminster, Pennsylvania.


Insider Transactions at ABUS

Insider Transaction List

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Date Insider Transaction Ownership Type Shares Traded Value / Price
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Last 12 Months Summary

Buy / Acquisition
371K Shares
From 4 Insiders
Grant, award, or other acquisition 371K shares
Sell / Disposition
76.7K Shares
From 4 Insiders
Open market or private sale 76.7K shares

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