Who owns Arbutus Biopharma Corp?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of ABUS from SEC Form 13F filings across 176 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 176 institutions disclosed 140.6M shares of Arbutus Biopharma Corp worth $674.9M — about 71.2% of shares outstanding; the largest disclosed holder is Two Seas Capital LP. Source: SEC Form 13F filings, parsed by EvidInvest.
176
13F holders
$674.9M
value, 2026 filers
71.2%
of shares outstanding (140.6M sh)
33
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30 · % of fund = share of the manager's own book · % of co. = share of ABUS's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | Two Seas Capital LP | 19.1M | $91.7M | 1.8% | 9.7% | +2.9% |
| 2 | MORGAN STANLEY | 17.7M | $85.0M | 0.0% | 9% | -31.6% |
| 3 | Whitefort Capital Management, LP | 15.8M | $75.8M | 18.7% | 8% | +5.8% |
| 4 | BlackRock, Inc. | 13.8M | $66.1M | 0.0% | 7% | +6.2% |
| 5 | STATE STREET CORP | 7.9M | $37.8M | 0.0% | 4% | +24.1% |
| 6 | Rubric Capital Management LP | 7.5M | $36.2M | 0.3% | 3.8% | +13.7% |
| 7 | VANGUARD CAPITAL MANAGEMENT LLC | 7.0M | $33.7M | 0.0% | 3.6% | +4.8% |
| 8 | BARCLAYS PLC | 4.2M | $20.2M | 0.0% | 2.1% | -2.5% |
| 9 | GEODE CAPITAL MANAGEMENT, LLC | 4.1M | $19.8M | 0.0% | 2.1% | +9.2% |
| 10 | GOLDMAN SACHS GROUP INC | 3.5M | $16.8M | 0.0% | 1.8% | +218.7% |
| 11 | BANK OF AMERICA CORP /DE/ | 2.6M | $12.7M | 0.0% | 1.3% | +57.2% |
| 12 | BlackBarn Capital Partners LP | 2.5M | $12.0M | 1.0% | 1.3% | 0.0% |
| 13 | Legal & General Group Plc | 2.5M | $11.8M | 0.0% | 1.2% | +2.7% |
| 14 | Woodline Partners LP | 2.3M | $11.0M | 0.0% | 1.2% | +13.5% |
| 15 | Jefferies Financial Group Inc. | 1.7M | $8.2M | 0.1% | 0.9% | -9.6% |
| 16 | NOMURA HOLDINGS INCNEW | 1.6M | $7.9M | 0.0% | 0.8% | new |
| 17 | VANGUARD PORTFOLIO MANAGEMENT LLC | 1.5M | $7.4M | 0.0% | 0.8% | +10.7% |
| 18 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 1.4M | $6.9M | 0.0% | 0.7% | +2.1% |
| 19 | NORTHERN TRUST CORP | 1.4M | $6.8M | 0.0% | 0.7% | +11.0% |
| 20 | OSAIC HOLDINGS, INC. | 1.3M | $6.5M | 0.0% | 0.7% | 0.0% |
| 21 | ADAR1 Capital Management, LLC | 1.3M | $6.1M | 0.3% | 0.6% | -59.5% |
| 22 | Deltroit Asset Management (UK) LLP | 1.2M | $5.8M | 0.8% | 0.6% | +50.0% |
| 23 | VANGUARD FIDUCIARY TRUST CO | 1.1M | $5.4M | 0.0% | 0.6% | +6.8% |
| 24 | CITIGROUP INC | 879,237 | $4.2M | 0.0% | 0.4% | -2.1% |
| 25 | BANK OF MONTREAL /CAN/ | 777,938 | $3.7M | 0.0% | 0.4% | -0.6% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.