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Disclosery

ABUS ARBUTUS BIOPHARMA CORP

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Common Shares, without par value (common), issuer CIK 1447028

159 managers (168 13F filers) reported a position in ABUS shares at 2026-03-31, 138,984,949 shares in all. 23 filers opened a position and 31 filers sold out during the quarter.

Managers
159
13F filers
168
New
23
Added
48
Reduced
48
Sold out
31
Shares held by filers
138,984,949

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

Each filer's latest stake. The shares are the aggregate the reporting persons state, which can include entities that file no 13F.

Insider trades

The latest Form 4 transactions, non-derivative.
OwnerDateSharesPriceFiling
Beardsley Robert Adirector2026-10-01-17,948 D$5Form 4
Nguyen Tuanofficer (Chief Financial Officer)2026-10-01-48,081 D$5Form 4
Sawhney Rogerdirector2026-10-01-17,142 D$5Form 4
Androski Lindsaydirector, officer (President and CEO)2026-10-01-24,655 D$5Form 4

13F holders, Q1 2026

Filers in the available 13F reports with a share position at 2026-03-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
MORGAN STANLEYin group MORGAN STANLEY25,891,480$117M0.01%-811,29613F-HRTimelineGroup
Two Seas Capital LPin group Two Seas Capital LP18,557,543$83.5M3.85%+5,968,38513F-HRTimelineGroup
Whitefort Capital Management, LP14,930,885$67.2M20.45%+1,587,65713F-HRTimeline
BlackRock, Inc.in group BlackRock, Inc.12,966,946$58.4M<0.01%-85,91513F-HRTimelineGroup
VANGUARD GROUP INCgroup of 7 filers holding9,330,566$42MnewTimeline
Rubric Capital Management LP6,626,389$29.8M0.37%+5,051,01313F-HRTimeline
STATE STREET CORPin group STATE STREET CORP6,342,510$28.5M<0.01%+434,29913F-HRTimelineGroup
BARCLAYS PLCin group BARCLAYS PLC4,316,095$19.4M0.01%+3,959,41113F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC3,771,806$17M<0.01%+94,49913F-HRTimelineGroup
ADAR1 Capital Management, LLCin group ADAR1 Capital Management, LLC3,133,175$14.1M0.85%-2,281,93413F-HRTimelineGroup
ADAGE CAPITAL PARTNERS GP, L.L.C.in group ADAGE CAPITAL PARTNERS GP, L.…2,664,941$12M0.02%-1,675,00013F-HRTimelineGroup
BlackBarn Capital Partners LP2,500,000$11.2M3.38%+650,00013F-HRTimeline
Legal & General Group Plcin group Legal & General Group Plc2,401,389$10.8M<0.01%+2,278,62813F-HRTimelineGroup
Woodline Partners LP2,010,172$9.05M0.03%-176,38113F-HR/ATimeline
Jefferies Financial Group Inc.in group Jefferies Financial Group Inc.1,894,067$8.52M0.1%new13F-HRTimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/1,683,628$7.58M<0.01%-149,07613F-HRTimelineGroup
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co1,401,157$6.31M<0.01%-161,10813F-HRTimelineGroup
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.1,348,127$6.07M0.01%-9713F-HRTimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP1,277,859$5.75M<0.01%+41,17013F-HRTimelineGroup
UBS Group AGgroup of 2 filers holding1,202,681$5.41M+164,491Timeline
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC1,100,434$4.95M<0.01%+361,85413F-HRTimelineGroup
CITIGROUP INCin group CITIGROUP INC898,421$4.04M<0.01%+287,27213F-HRTimelineGroup
Deltroit Asset Management (UK) LLP800,000$3.6M0.62%new13F-HRTimeline
BANK OF MONTREAL /CAN/in group BANK OF MONTREAL /CAN/782,763$3.52M<0.01%+16,10713F-HRTimelineGroup
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC677,138$3.05M<0.01%+572,29513F-HRTimelineGroup
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC642,448$2.89M<0.01%new13F-HRTimelineGroup
Western Standard LLC521,587$2.35M1.23%+13,73413F-HRTimeline
Quinn Opportunity Partners LLC514,513$2.32M0.12%013F-HRTimeline
Rangeley Capital, LLC500,000$2.25M2.43%-340,00013F-HRTimeline
Freestone Capital Holdings, LLCin group Freestone Capital Holdings, L…442,500$1.99M0.06%013F-HRTimelineGroup
WELLINGTON MANAGEMENT GROUP LLPin group WELLINGTON MANAGEMENT GROUP L…440,924$1.98M<0.01%-33,43713F-HRTimelineGroup
KENNEDY CAPITAL MANAGEMENT LLC393,132$1.77M0.04%-111,96213F-HRTimeline
Bank of New York Mellon Corpin group Bank of New York Mellon Corp379,373$1.71M<0.01%-8,54113F-HRTimelineGroup
Hudson Bay Capital Management LPin group Hudson Bay Capital Management…350,000$1.57M0.01%-325,00013F-HRTimelineGroup
Swiss National Bank283,400$1.28M<0.01%013F-HRTimeline
Ledgewood Wealth Advisors, LLC278,436$1.25M0.71%013F-HRTimeline
SUSQUEHANNA INTERNATIONAL GROUP, LLPgroup of 2 filers holding260,790$1.17M+151,379Timeline
Nuveen, LLCin group TIAA259,017$1.17M<0.01%+1,08313F-HRTimelineGroup
Carrera Capital Advisors252,159$1.13M0.17%new13F-HRTimeline
Invesco Ltd.in group Invesco Ltd.247,925$1.12M<0.01%+67113F-HRTimelineGroup
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC191,355$861K<0.01%+131,17013F-HRTimelineGroup
RHUMBLINE ADVISERS178,785$805K<0.01%-4,46513F-HRTimeline
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\160,740$723K<0.01%+20,54213F-HRTimelineGroup
FMR LLCin group FMR LLC145,126$653K<0.01%+8,57013F-HRTimelineGroup
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.143,201$644K<0.01%-88,56213F-HRTimelineGroup
CALIFORNIA STATE TEACHERS RETIREMENT SY…142,985$643K<0.01%-1,12513F-HRTimeline
ALLIANCEBERNSTEIN L.P.127,340$613K<0.01%-16,53013F-HRTimeline
Wealth Management Associates, Inc.131,870$593K0.2%+4,00013F-HRTimeline
Balyasny Asset Management L.P.in group Balyasny Asset Management125,521$565K<0.01%-16,12513F-HRTimelineGroup
Zurcher Kantonalbank (Zurich Cantonalba…125,233$564K<0.01%-3,08213F-HRTimeline
Avidity Partners Management LP125,000$562K0.11%new13F-HR/ATimeline
Rafferty Asset Management, LLC122,854$553K<0.01%+5,82213F-HRTimeline
PRICE T ROWE ASSOCIATES INC /MD/115,990$522K<0.01%+26,77413F-HRTimeline
SCHRODER INVESTMENT MANAGEMENT GROUP121,313$522K<0.01%013F-HRTimeline
Front Row Advisors LLC110,500$497K0.17%+100,00013F-HRTimeline
EntryPoint Capital, LLC110,123$496K0.15%+34,51613F-HRTimeline
Campbell & CO Investment Adviser LLC103,412$465K0.03%-9,70113F-HRTimeline
Mirae Asset Global Investments Co., Ltd.group of 2 filers holding89,498$401K+2,993Timeline
STATE OF WISCONSIN INVESTMENT BOARD88,359$398K<0.01%-4,41013F-HRTimeline
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO87,049$374K<0.01%-10,82613F-HR/ATimelineGroup
MetLife Investment Management, LLCin group MetLife Investment Management…81,069$365K<0.01%+7,83313F-HRTimelineGroup
JBF Capital, Inc.80,281$361K0.05%new13F-HRTimeline
SG Americas Securities, LLC79,033$356K<0.01%+37,39513F-HRTimeline
Exome Asset Management LLC75,484$340K0.2%013F-HRTimeline
DRW Securities, LLC69,089$311K0.02%new13F-HRTimeline
Rockefeller Capital Management L.P.in group Rockefeller Capital Managemen…63,000$284K<0.01%013F-HRTimelineGroup
JANUS HENDERSON GROUP PLCin group Janus Henderson60,900$274K<0.01%013F-HR/ATimelineGroup
Creative Planningin group Creative Planning60,117$271K<0.01%+8,20013F-HRTimelineGroup
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN58,709$264K<0.01%-108,31213F-HR/ATimelineGroup
Magnetar Financial LLCin group Magnetar Financial LLC58,516$263K<0.01%new13F-HRTimelineGroup
Virtus Investment Advisers, LLCin group Virtus Investment Advisers, L…57,895$261K0.07%+1,41213F-HRTimelineGroup
PROFUND ADVISORS LLC56,257$253K0.01%+11,12813F-HRTimeline
Mitsubishi UFJ Asset Management Co., Lt…in group Mitsubishi UFJ Trust & Bankin…52,762$237K<0.01%-1,30413F-HRTimelineGroup
GROUP ONE TRADING LLC50,843$229K0.01%-7,57313F-HRTimeline
State of New Jersey Common Pension Fund…in group State of New Jersey Common Pe…49,296$222K<0.01%new13F-HRTimelineGroup
Quantinno Capital Management LP48,715$219K<0.01%-5,95013F-HRTimeline
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …42,429$191K<0.01%-5,03013F-HRTimelineGroup
Police & Firemen's Retirement System of…41,664$187K<0.01%013F-HRTimeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS41,561$187K<0.01%-21,21013F-HRTimelineGroup
XTX Topco Ltdin group XTX Topco Ltd40,021$180K<0.01%new13F-HRTimelineGroup
Premier Path Wealth Partners, LLC40,000$180K0.02%013F-HRTimeline
ARIZONA STATE RETIREMENT SYSTEM39,620$178K<0.01%-34213F-HRTimeline
STATE BOARD OF ADMINISTRATION OF FLORID…35,820$161K<0.01%013F-HRTimeline
NEW YORK STATE COMMON RETIREMENT FUND35,268$159K<0.01%013F-HRTimeline
China Universal Asset Management Co., L…34,129$154K0.01%+2,79013F-HRTimeline
INTECH INVESTMENT MANAGEMENT LLC33,574$151K<0.01%-36,98913F-HRTimeline
INCEPTIONR LLC32,580$147K0.04%+4,16213F-HRTimeline
KLP KAPITALFORVALTNING AS30,900$139K<0.01%013F-HRTimeline
ProShare Advisors LLC30,551$137K<0.01%-5,61013F-HRTimeline
VOYA INVESTMENT MANAGEMENT LLCin group VOYA INVESTMENT MANAGEMENT LLC28,676$129K<0.01%-67313F-HRTimelineGroup
Ensign Peak Advisors, Inc27,600$124K<0.01%013F-HR/ATimeline
Clear Harbor Asset Management, LLC27,000$122K0.01%-47,76113F-HRTimeline
MONETA GROUP INVESTMENT ADVISORS LLC26,000$117K<0.01%013F-HRTimeline
Connor, Clark & Lunn Investment Managem…25,859$116K<0.01%new13F-HRTimeline
PRELUDE CAPITAL MANAGEMENT, LLC25,318$114K0.01%013F-HRTimeline
Pictet Asset Management Holding SAin group Pictet Asset Management Holdi…23,927$108K<0.01%013F-HRTimelineGroup
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC23,819$107K<0.01%+7,03613F-HRTimelineGroup
ExodusPoint Capital Management, LP23,554$106K<0.01%-6,94913F-HRTimeline
PRUDENTIAL FINANCIAL INCin group PRUDENTIAL FINANCIAL INC23,310$105K<0.01%new13F-HRTimelineGroup
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…22,675$102K<0.01%-1,13913F-HRTimelineGroup
SBI Securities Co., Ltd.22,666$102K<0.01%-6,95913F-HRTimeline
Abel Hall, LLC20,073$90.3K0.02%-10,70613F-HRTimeline
MERCER GLOBAL ADVISORS INC /ADV19,345$87.1K<0.01%-25,77513F-HRTimeline
TEACHER RETIREMENT SYSTEM OF TEXAS18,647$83.9K<0.01%-2,53213F-HRTimeline
Freestone Grove Partners LP18,006$81K<0.01%new13F-HRTimeline
Gotham Asset Management, LLC17,321$77.9K<0.01%new13F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…16,295$73.3K<0.01%+8,28813F-HRTimelineGroup
SIMPLEX TRADING, LLC15,574$70.1K<0.01%-6,62913F-HRTimeline
E Fund Management Co., Ltd.15,443$69.5K<0.01%13F-HRTimeline
VERUS CAPITAL PARTNERS, LLC15,250$68.6K<0.01%-1,40013F-HRTimeline
CURA WEALTH ADVISORS, LLC15,000$67.5K0.03%013F-HRTimeline
SCOTIA CAPITAL INC.14,740$66.3K<0.01%013F-HRTimeline
DNB Asset Management ASin group DNB Asset Management AS14,643$65.9K<0.01%new13F-HRTimelineGroup
CIBC Asset Management Inc14,382$64.7K<0.01%013F-HRTimeline
FIRST MANHATTAN CO. LLC.14,000$63K<0.01%013F-HRTimeline
Walleye Trading LLCin group Walleye Capital LLC14,000$63K<0.01%013F-HRTimelineGroup
XPONANCE LLC13,690$61.6K<0.01%+1,81413F-HRTimeline
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…12,648$56.9K<0.01%013F-HRTimelineGroup
WMG Financial Advisors, LLC12,605$56.7K0.02%013F-HRTimeline
Aquatic Capital Management LLC12,345$55.6K<0.01%new13F-HRTimeline
Amundiin group Amundi11,878$53.5K<0.01%013F-HRTimelineGroup
PFG Investments, LLC11,000$49.5K<0.01%013F-HRTimeline
PRINCIPAL FINANCIAL GROUP INCin group PRINCIPAL FINANCIAL GROUP INC10,977$49.4K<0.01%new13F-HRTimelineGroup
Pathstone Holdings, LLCin group Pathstone Holdings, LLC10,000$45K<0.01%013F-HRTimelineGroup
EASTERN BANK5,000$22.5K<0.01%013F-HRTimeline
GF FUND MANAGEMENT CO. LTD.4,300$19.4K<0.01%+52213F-HRTimeline
Steward Partners Investment Advisory, L…4,000$18K<0.01%013F-HRTimeline
BNP PARIBAS ASSET MANAGEMENT Holding S.…in group BNP PARIBAS ASSET MANAGEMENT …3,766$16.9K<0.01%+1,36713F-HRTimelineGroup
NISA INVESTMENT ADVISORS, LLC2,636$11.9K<0.01%+113F-HRTimeline
SIGNATUREFD, LLC2,556$11.5K<0.01%013F-HRTimeline
CWM, LLCin group CWM, LLC2,423$10.9K<0.01%+16613F-HRTimelineGroup
Allworth Financial LP2,060$9.27K<0.01%+1713F-HRTimeline
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…1,869$8.41K<0.01%+1,03213F-HRTimelineGroup
Smartleaf Asset Management LLC1,729$7.43K<0.01%013F-HRTimeline
US BANCORP \DE\in group US BANCORP \DE\1,588$7.15K<0.01%+13713F-HRTimelineGroup
Avion Wealth1,500$6K<0.01%013F-HRTimeline
Sterling Capital Management LLC1,201$5.41K<0.01%-33113F-HRTimeline
Parallel Advisors, LLC1,039$4.68K<0.01%-16513F-HR/ATimeline
Cornerstone Planning Group LLC924$4.07K<0.01%013F-HRTimeline
Hartford Financial Management Inc.900$4.05K<0.01%013F-HRTimeline
JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP830$3.56K<0.01%013F-HRTimelineGroup
Larson Financial Group LLC716$3.22K<0.01%-4513F-HRTimeline
NATIONAL BANK OF CANADA /FI/in group NATIONAL BANK OF CANADA /FI/700$3.14K<0.01%+4113F-HRTimelineGroup
Optiver Holding B.V.in group Optiver Holding B.V.669$3.01K<0.01%-34813F-HR/ATimelineGroup
MAI Capital Management655$2.95K<0.01%+5413F-HRTimeline
HARBOR INVESTMENT ADVISORY, LLC500$2.25K<0.01%013F-HRTimeline
HANTZ FINANCIAL SERVICES, INC.521$2K<0.01%013F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
Root Financial Partners, LLC281$1.26K<0.01%new13F-HRTimeline
QUADRANT CAPITAL GROUP LLC277$1.25K<0.01%013F-HR/ATimeline
Private Wealth Management Group, LLC242$1.09K<0.01%013F-HRTimeline
Federation des caisses Desjardins du Qu…200$898<0.01%013F-HRTimeline
GAMMA Investing LLC182$819<0.01%new13F-HRTimeline
Bare Financial Services, Inc181$815<0.01%013F-HRTimeline
Arax Advisory Partners162$729<0.01%-1,07113F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…136$613<0.01%+1713F-HR/ATimelineGroup
Farther Finance Advisors, LLC117$529<0.01%013F-HRTimeline
Hughes Financial Services, LLC1$5<0.01%new13F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA109$00%-65,57813F-HRTimelineGroupValue filed as zero, left out of ratios.
Activest Wealth Management0$00%new13F-HRTimelineValue filed as zero, left out of ratios. Amount filed as zero, left out of ratios.

Events

  • MORGAN STANLEY and 1 other reporting person reported 18,682,708 ABUS shares, 12.2% of the class, as of 2026-09-30, in a 13G/A filed 2026-10-07. 0000895421-26-000284

    Accepted , ingested

  • Beardsley Robert A disposed of 17,948 ABUS shares on 2026-10-01, Form 4 filed 2026-10-07. 0001447028-26-000061

    Accepted , ingested

  • Nguyen Tuan disposed of 48,081 ABUS shares on 2026-10-01, Form 4 filed 2026-10-07. 0001447028-26-000060

    Accepted , ingested

  • Sawhney Roger disposed of 17,142 ABUS shares on 2026-10-01, Form 4 filed 2026-10-07. 0001447028-26-000059

    Accepted , ingested

  • Androski Lindsay disposed of 24,655 ABUS shares on 2026-10-01, Form 4 filed 2026-10-07. 0001447028-26-000058

    Accepted , ingested

  • Roivant Sciences Ltd. reported 29,880,079 ABUS shares, 19.5% of the class, as of 2026-10-01, in a 13D/A filed 2026-10-05. 0001140361-26-038693

    Accepted , ingested