ARBUTUS BIOPHARMA CORP ABUS
COM · Common Stock · CUSIP 03879J100 · ISIN CA03879J1003
Canadian Bio Tech Company
- SectorHealth care
- IndustryPharmaceutical Preparations
- HeadquartersWarminster, PA
- Founded2007
- Websitearbutusbio.com
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once. Holder counts are more reliable. Shares outstanding: 156.5m as of 2022-11-08, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $2.33. Options: 10 managers hold calls ($3.7m notional), 8 hold puts ($1.8m).
Trends to Q4 2022
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 127 |
| Q4 2022 | 115 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2022 | $1.9m | $1.3m | 0.64 |
| Q4 2022 | $3.7m | $1.8m | 0.47 |
Biggest buyers
| Whitefort Capital Management, LP | New | +3.9m |
| Rubric Capital Management LP | New | +3.5m |
| Two Seas Capital LP | Added | +1.9m |
| BlackRock Inc. | Added | +1.2m |
| ETF MANAGERS GROUP, LLC | Added | +595.7k |
| CITADEL ADVISORS LLC | Added | +179.1k |
| GEODE CAPITAL MANAGEMENT, LLC | Added | +121.4k |
| VANGUARD GROUP INC | Added | +99.1k |
| JANE STREET GROUP, LLC | Added | +87.7k |
| Oasis Management Co Ltd. | Added | +62.2k |
Biggest sellers
| MILLENNIUM MANAGEMENT LLC | Reduced | -1.7m |
| Assenagon Asset Management S.A. | Reduced | -1.1m |
| MARSHALL WACE, LLP | Sold out | -392.9k |
| GOLDMAN SACHS GROUP INC | Reduced | -267.1k |
| Parallax Volatility Advisers, L.P. | Sold out | -200.5k |
| JACOBS LEVY EQUITY MANAGEMENT, INC | Sold out | -183.9k |
| Hudson Bay Capital Management LP | Reduced | -110.5k |
| Connor, Clark & Lunn Investment Management Ltd. | Sold out | -90.5k |
| PRIMECAP MANAGEMENT CO/CA/ | Reduced | -71.8k |
| PEAK6 Investments LLC | Sold out | -62.4k |
Biggest calls
| PEAK6 Investments LLC | Added | $1.7m742.4k shares |
| GROUP ONE TRADING LLC | Reduced | $644.5k276.6k shares |
| CITADEL ADVISORS LLC | Added | $542.9k233.0k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $314.3k134.9k shares |
| Caption Management, LLC | Added | $235.6k101.1k shares |
| SIMPLEX TRADING, LLC | Reduced | $167.0k71.8k shares |
| JANE STREET GROUP, LLC | Unchanged | $59.4k25.5k shares |
| WOLVERINE TRADING, LLC | Reduced | $48.0k20.6k shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
| HAP Trading, LLC | New | $012.3k shares |
Biggest puts
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $738.1k316.8k shares |
| PEAK6 Investments LLC | Added | $466.7k200.3k shares |
| Caption Management, LLC | Unchanged | $233.0k100.0k shares |
| CITADEL ADVISORS LLC | Added | $156.6k67.2k shares |
| SIMPLEX TRADING, LLC | Added | $73.0k31.4k shares |
| GROUP ONE TRADING LLC | Reduced | $49.9k21.4k shares |
| WOLVERINE TRADING, LLC | Reduced | $49.0k20.9k shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
Roivant Sciences Ltd.
13D · may seek influence
-1.0 pts · filed 2026-10-05
Stated purposeItem 4 is hereby amended by adding the following to the end thereof: On August 24, 2026, the Issuer commenced a modified Dutch auction tender offer to purchase for cancellation up to US$230 million in value of its Common Shares at prices between US$5.00 and US$5.75 per Common Share (the "Offer"), which included the option for shareholders to make a proportionate tender. Roivant made a proportionate tender of its Common Shares in the Offer in order to maintain its proportionate ownership of the Common Shares following completion of the Offer. The Offer expired at 5:00 p.m., New York City time, on September 29, 2026. On October 1, 2026, the Issuer announced that it had taken up and accepted for purchase 46,000,000 Common Shares at a purchase price of US$5.00 per Common Share, including 8,96… Full filing |
19.5% |
| MORGAN STANLEY 13G · institution +3.4 pts · filed 2026-10-07 | 12.2% |
| Two Seas Capital LP 13G · institution +2.9 pts · filed 2026-05-15 | 9.4% |
| Whitefort Capital Management, LP 13G · passive investor no change · filed 2026-09-04 | 8.0% |
| BlackRock, Inc. 13G · institution filed 2026-10-27 | 7.2% |
Insider purchases and sales in Q4 2022
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q1 2021 | 0 | — | 0 | — | — |
| Q2 2021 | 0 | — | 0 | — | — |
| Q3 2021 | 0 | — | 0 | — | — |
| Q4 2021 | 0 | — | 1 | $1.0m | — |
| Q1 2022 | 0 | — | 0 | — | — |
| Q2 2022 | 0 | — | 0 | — | — |
| Q3 2022 | 0 | — | 0 | — | — |
| Q4 2022 | 0 | — | 0 | — | — |
None reported in Q4 2022.
Holders, Q4 2022
| Manager | Shares | Change |
|---|---|---|
| BlackRock Inc. 0.00% of their portfolio | 8.7m $20.3m | Added +1.2m |
| Two Seas Capital LP 16.61% of their portfolio | 7.5m $17.5m | Added +1.9m |
| VANGUARD GROUP INC 0.00% of their portfolio | 5.4m $12.5m | Added +99.1k |
| Hudson Bay Capital Management LP 0.13% of their portfolio | 4.9m $11.3m | Reduced -110.5k |
| Whitefort Capital Management, LP 6.97% of their portfolio | 3.9m $9.0m | New |
| Rubric Capital Management LP 0.35% of their portfolio | 3.5m $8.1m | New |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 2.1m $5.0m | Added +121.4k |
| STATE STREET CORP 0.00% of their portfolio | 2.0m $4.7m | Added +13.7k |
| FourWorld Capital Management LLC 6.74% of their portfolio | 2.0m $4.7m | Unchanged |
| MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio | 1.9m $4.3m | Reduced -1.7m |
| OSAIC HOLDINGS, INC. 0.01% of their portfolio | 1.4m $3.2m | Added +12.0k |
| Oasis Management Co Ltd. 0.54% of their portfolio | 1.1m $2.5m | Added +62.2k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 918.7k $2.1m | Added +18.2k |
| Assenagon Asset Management S.A. 0.01% of their portfolio | 817.6k $1.9m | Reduced -1.1m |
| BOOTHBAY FUND MANAGEMENT, LLC 0.05% of their portfolio | 712.7k $1.7m | Reduced -54.7k |
| ETF MANAGERS GROUP, LLC 0.07% of their portfolio | 640.0k $1.5m | Added +595.7k |
| Bank of New York Mellon Corp 0.00% of their portfolio | 418.5k $975.2k | Added +33.1k |
| WELLINGTON MANAGEMENT GROUP LLP 0.00% of their portfolio | 409.5k $954.1k | Reduced -24.1k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 384.0k $894.7k | Reduced -267.1k |
| CITADEL ADVISORS LLC 0.00% of their portfolio | 366.9k $854.8k | Added +179.1k |
| PRIMECAP MANAGEMENT CO/CA/ 0.00% of their portfolio | 351.5k $819.0k | Reduced -71.8k |
| BANK OF MONTREAL /CAN/ 0.00% of their portfolio | 319.8k $793.1k | Reduced -210 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 305.3k $711.3k | Added +17.9k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio | 294.5k $686.3k | Added +5.0k |
| Nuveen Asset Management, LLC 0.00% of their portfolio | 290.1k $675.0k | Reduced -36.0k |
| DekaBank Deutsche Girozentrale 0.00% of their portfolio | 250.0k $565.0k | Unchanged |
| MORGAN STANLEY 0.00% of their portfolio | 241.9k $563.6k | Added +29.9k |
| Tejara Capital Ltd 0.27% of their portfolio | 200.0k $466.0k | First filing |
| Kepos Capital LP 0.07% of their portfolio | 200.0k $466.0k | Unchanged |
| JACOB ASSET MANAGEMENT OF NEW YORK LLC 0.53% of their portfolio | 187.4k $436.6k | Reduced -32.6k |
| FMR LLC 0.00% of their portfolio | 185.2k $431.5k | Reduced -1.6k |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 149.5k $348.0k | Added +6.7k |
| GSA CAPITAL PARTNERS LLP 0.03% of their portfolio | 117.2k $273.0k | Added +22.4k |
| JANE STREET GROUP, LLC 0.00% of their portfolio | 106.5k $248.3k | Added +87.7k |
| ALPS ADVISORS INC 0.00% of their portfolio | 106.2k $247.5k | Added +24.4k |
| Rafferty Asset Management, LLC 0.00% of their portfolio | 94.5k $220.2k | Added +40.2k |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 93.8k $218.0k | Added +1.3k |
| PRUDENTIAL FINANCIAL INC 0.00% of their portfolio | 93.3k $217.3k | Added +58.9k |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 93.0k $217.0k | Reduced -43.3k |
| NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio | 75.4k $175.7k | Reduced -70 |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 74.3k $173.1k | Added +19.1k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 72.8k $170.0k | Added +3.1k |
| LMR Partners LLP 0.00% of their portfolio | 60.0k $139.8k | Added +6.1k |
| AMERICAN INTERNATIONAL GROUP, INC. 0.00% of their portfolio | 53.7k $125.2k | Added +2.5k |
| Clear Harbor Asset Management, LLC 0.02% of their portfolio | 53.0k $123.5k | New |
| VIRTUS ADVISERS, LLC 0.06% of their portfolio | 51.5k $120.0k | Added +8.5k |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 50.3k $117.1k | Added +720 |
| Caption Management, LLC 0.02% of their portfolio | 50.0k $116.5k | Added +16.2k |
| Wealth Management Associates, Inc. 0.08% of their portfolio | 49.3k $114.8k | Added +8.4k |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 49.1k $114.4k | Added +17.3k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 46.2k $107.6k | Added +3.5k |
| SIMPLEX TRADING, LLC 0.01% of their portfolio | 46.0k $107.0k | Added +5.5k |
| Invesco Ltd. 0.00% of their portfolio | 45.4k $105.7k | Added +7.4k |
| Man Group plc 0.00% of their portfolio | 44.9k $104.6k | Reduced -42.3k |
| Virtu Financial LLC 0.01% of their portfolio | 44.2k $103.0k | New |
| MetLife Investment Management, LLC 0.00% of their portfolio | 44.1k $102.8k | Reduced -14.3k |
| VOYA INVESTMENT MANAGEMENT LLC 0.00% of their portfolio | 42.2k $98.3k | Unchanged |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.00% of their portfolio | 42.2k $98.2k | Added +168 |
| State of Wyoming 0.03% of their portfolio | 41.9k $97.6k | Added +9.1k |
| PRELUDE CAPITAL MANAGEMENT, LLC 0.01% of their portfolio | 40.1k $93.5k | Reduced -13.7k |
| PRINCIPAL FINANCIAL GROUP INC 0.00% of their portfolio | 38.8k $90.5k | Added +24.8k |
| RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio | 35.1k $82.0k | Reduced -10.5k |
| FRANKLIN RESOURCES INC 0.00% of their portfolio | 31.4k $73.2k | Reduced -115 |
| BARCLAYS PLC 0.00% of their portfolio | 30.5k $71.1k | First filing |
| ProShare Advisors LLC 0.00% of their portfolio | 27.6k $64.2k | Added +3.0k |
| VERUS CAPITAL PARTNERS, LLC 0.01% of their portfolio | 27.3k $63.7k | Reduced -375 |
| SG Americas Securities, LLC 0.00% of their portfolio | 25.4k $59.0k | Reduced -4.1k |
| UBS Group AG 0.00% of their portfolio | 23.3k $54.3k | New |
| AQR CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 22.8k $53.0k | Reduced -69 |
| BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio | 20.1k $46.8k | Reduced -18.6k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 20.0k $47.0k | Added +2.0k |
| PATHSTONE FAMILY OFFICE, LLC 0.00% of their portfolio | 20.0k $57.6k | Unchanged |
| Kades & Cheifetz LLC 0.04% of their portfolio | 20.0k $46.6k | First filing |
| BUCKINGHAM STRATEGIC WEALTH, LLC 0.00% of their portfolio | 17.7k $41.3k | Unchanged |
| AMALGAMATED BANK 0.00% of their portfolio | 15.7k $37.0k | Unchanged |
| Tower Research Capital LLC (TRC) 0.00% of their portfolio | 14.8k $35.0k | Added +4.2k |
| Balyasny Asset Management L.P. 0.00% of their portfolio | 14.6k $34.1k | Added +2.4k |
| Squarepoint Ops LLC 0.00% of their portfolio | 13.7k $31.8k | New |
| Dynamic Technology Lab Private Ltd 0.00% of their portfolio | 13.6k $32.0k | Reduced -4.9k |
| WMG Financial Advisors, LLC 0.02% of their portfolio | 12.6k $29.4k | Unchanged |
| Legal & General Group Plc 0.00% of their portfolio | 12.2k $28.4k | Unchanged |
| Apollon Wealth Management, LLC 0.00% of their portfolio | 11.6k $27.0k | Unchanged |
| BENJAMIN F. EDWARDS & COMPANY, INC. 0.00% of their portfolio | 10.7k $25.0k | Unchanged |
| Front Row Advisors LLC 0.01% of their portfolio | 10.5k $24.0k | Unchanged |
| Alpine Global Management, LLC 0.01% of their portfolio | 10.2k $24.0k | New |
| MONETA GROUP INVESTMENT ADVISORS LLC 0.00% of their portfolio | 10.1k $30.3k | Reduced -3.0k |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 9.1k $21.2k | Added +1.2k |
| Financial Synergies Wealth Advisors, Inc. 0.00% of their portfolio | 7.3k $17.1k | Unchanged |
| Metropolitan Life Insurance Co/NY 0.00% of their portfolio | 6.6k $15.4k | Unchanged |
| Zurcher Kantonalbank (Zurich Cantonalbank) 0.00% of their portfolio | 6.2k $14.4k | Reduced -1.2k |
| Ameritas Investment Partners, Inc. 0.00% of their portfolio | 6.1k $16.9k | Unchanged |
| CAMBRIDGE TRUST CO 0.00% of their portfolio | 5.0k $12.0k | Unchanged |
| Cutler Group LLC / CA 0.00% of their portfolio | 4.5k $10.0k | Reduced -252 |
| Steward Partners Investment Advisory, LLC 0.00% of their portfolio | 4.0k $9.3k | Reduced -1.0k |
| NISA INVESTMENT ADVISORS, LLC 0.00% of their portfolio | 3.8k $9.0k | Added +52 |
| CITIGROUP INC 0.00% of their portfolio | 2.8k $6.5k | Reduced -654 |
| NATIONAL BANK OF CANADA /FI/ 0.00% of their portfolio | 2.1k $4.9k | Added +300 |
| China Universal Asset Management Co., Ltd. 0.00% of their portfolio | 1.6k $3.7k | Added +186 |
| BLUE BELL PRIVATE WEALTH MANAGEMENT, LLC 0.00% of their portfolio | 1.5k $3.5k | Unchanged |
| SIGNATUREFD, LLC 0.00% of their portfolio | 1.2k $2.7k | Added +54 |