Arbutus Biopharma
Develops chronic HBV therapies while monetizing legacy lipid-nanoparticle IP.
$5.09
After-hours close+0.04 (+0.74%)
At close$5.06(−2.22%)
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Breakdown13F · Form 4
Institutions 72.26%142.75M sharesInsiders 19.72%38.95M sharesOther 8.02%15.84M shares
Shares outstanding 197.54M · Float 157.12M · 79.5% free float
Institutions13F, as of Jun 30, 2026
182 holders · 142.75M shares · 37 new positions · 101 increased · 39 reduced · 26 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| Two Seas Capital LP | 19.10M | 9.67% | +538.0K | Aug 12, 2026 |
| Morgan Stanley | 17.70M | 8.96% | −8.19M | Aug 13, 2026 |
| Whitefort Capital Management, LP | 15.79M | 8.00% | +863.4K | Aug 14, 2026 |
| BlackRock, Inc. | 13.77M | 6.97% | +799.1K | Aug 7, 2026 |
| State Street Corp | 7.87M | 3.98% | +1.53M | Aug 7, 2026 |
| Rubric Capital Management LP | 7.53M | 3.81% | +906.5K | Aug 14, 2026 |
| Vanguard Capital Management LLC | 7.01M | 3.55% | +321.8K | Aug 13, 2026 |
| Barclays PLC | 4.21M | 2.13% | −108.2K | Aug 14, 2026 |
Beneficial owners13D/G · 5% or more, as filed
| Holder | % of class | Shares | Form | Filed |
|---|---|---|---|---|
| Roivant Sciences Ltd. | 20.50% | 38.85M | 13D | Feb 25, 2025 ↗ |
| Morgan Stanley | 13.50% | 25.91M | 13G | Feb 11, 2026 ↗ |
| Two Seas Capital LP | 9.40% | 18.56M | 13G | May 15, 2026 ↗ |
| Whitefort Capital GP, LLCincl. Whitefort Capital Management, LP, Whitefort Capital Master Fund, LP +3 more | 8.00% | 15.79M | 13D | Apr 28, 2026 ↗ |
InsidersForm 4
| Insider | Role | Shares | % outstanding | Filed |
|---|---|---|---|---|
| Matthew Gline | director, 10 percent owner: | 38.85M | 19.67% | Mar 6, 2025 |
| Tuan Nguyen | officer: Chief Financial Officer | 73.5K | 0.04% | Feb 2, 2026 |
| Lindsay Androski | director, officer: President and CEO | 28.0K | 0.01% | Feb 2, 2026 |
10 ten-percent owners hold 182.97M shares by Form 4, outside the officers-and-directors figure above · 22 people have not refiled in the last 18 months (22.79M shares), so they are not in the figure above
Latest trades
No open-market trades in the last 12 months.
CongressHouse and Senate disclosures
Not reported.