# ARBUTUS BIOPHARMA CORP COM

ARBUTUS BIOPHARMA CORP COM is a security (CUSIP 03879J100) tracked across SEC portfolio filings. 173 institutional managers reported $632.5M on Form 13F as of 2026-06-30; 13 registered fund positions totaling $31.1M via N-PORT as of 2026-05-31.

## Summary

- Issuer: ARBUTUS BIOPHARMA CORP
- Class: COM
- CUSIP: 03879J100
- Asset category: EC
- 13F holders: 173
- 13F value: $632.5M
- 13F period: 2026-06-30
- N-PORT fund positions: 13
- N-PORT value: $31.1M
- N-PORT report: 2026-05-31

## Top institutional holders (Form 13F)

_Showing 15 of 173 managers by value._

| Manager | Location | Value | Shares |
| --- | --- | --- | --- |
| MORGAN STANLEY | NEW YORK, NY | $116.5M | 25,891,480 |
| Two Seas Capital LP | RYE, NY | $83.5M | 18,557,543 |
| [Whitefort Capital Management, LP](https://search.stillhousedata.com/firm/288534) | NEW YORK, NY | $67.2M | 14,930,885 |
| BlackRock, Inc. | New York, NY | $58.4M | 12,966,946 |
| [VANGUARD GROUP INC](https://search.stillhousedata.com/firm/105958) | Valley Forge, PA | $44.5M | 9,242,437 |
| Rubric Capital Management LP | New York, NY | $29.8M | 6,626,389 |
| STATE STREET CORP | BOSTON, MA | $28.5M | 6,342,510 |
| BARCLAYS PLC | LONDON, X0 | $19.4M | 4,316,095 |
| [GEODE CAPITAL MANAGEMENT, LLC](https://search.stillhousedata.com/firm/115504) | BOSTON, MA | $17.0M | 3,771,806 |
| [ADAR1 Capital Management, LLC](https://search.stillhousedata.com/firm/299694) | AUSTIN, TX | $14.1M | 3,133,175 |
| [ADAGE CAPITAL PARTNERS GP, L.L.C.](https://search.stillhousedata.com/firm/160679) | Boston, MA | $12.0M | 2,664,941 |
| [BlackBarn Capital Partners LP](https://search.stillhousedata.com/firm/319137) | NEW YORK, NY | $11.3M | 2,500,000 |
| Legal & General Group Plc | London, X0 | $10.8M | 2,401,389 |
| [Woodline Partners LP](https://search.stillhousedata.com/firm/301480) | San Francisco, CA | $9.0M | 2,010,172 |
| Jefferies Financial Group Inc. | NEW YORK, NY | $8.5M | 1,894,067 |

## Top fund holders (N-PORT)

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| [Morgan Stanley Insight Fund](https://search.stillhousedata.com/fund/S000002337) | Morgan Stanley Insight Fund | $17.3M | 154.07% |
| [VANGUARD EXTENDED MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002841) | VANGUARD INDEX FUNDS | $7.8M | 0.96% |
| [VANGUARD RUSSELL 2000 INDEX FUND](https://search.stillhousedata.com/fund/S000030003) | VANGUARD SCOTTSDALE FUNDS | $3.5M | 2.02% |
| [Master Small Cap Index Series](https://search.stillhousedata.com/fund/S000002716) | Quantitative Master Series LLC | $1.1M | 2.31% |
| [VANGUARD BALANCED INDEX FUND](https://search.stillhousedata.com/fund/S000002560) | VANGUARD VALLEY FORGE FUNDS | $389K | 0.07% |
| [VANGUARD U.S. MOMENTUM FACTOR ETF](https://search.stillhousedata.com/fund/S000061302) | VANGUARD WELLINGTON FUND | $300K | 1.63% |
| [Goldman Sachs ActiveBeta(R) U.S. Small Cap Equity ETF](https://search.stillhousedata.com/fund/S000048296) | Goldman Sachs ETF Trust | $294K | 2.98% |
| [VANGUARD INSTITUTIONAL TOTAL STOCK MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002855) | VANGUARD INSTITUTIONAL INDEX FUNDS | $265K | 0.09% |
| [DWS Small Cap Index VIP](https://search.stillhousedata.com/fund/S000006223) | DEUTSCHE DWS INVESTMENTS VIT FUNDS | $97K | 2.32% |
| [Invesco NASDAQ Future Gen 200 ETF](https://search.stillhousedata.com/fund/S000077288) | Invesco Exchange-Traded Fund Trust II | $75K | 39.77% |
| [TIAA Separate Account VA-1 - Stock Index Account](https://search.stillhousedata.com/fund/S000005098) | TIAA Separate Account VA-1 | $10K | 0.08% |
| [Humankind U.S. Stock ETF](https://search.stillhousedata.com/fund/S000069946) | Humankind Benefit Corp | $5K | 0.33% |
| [Blackstone Alternative Multi-Strategy Fund](https://search.stillhousedata.com/fund/S000045538) | Blackstone Alternative Investment Funds | $-77K | -0.21% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/03879J100.md)
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Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.