Vault-13

ARBUTUS BIOPHARMA CORP ABUS

COM · Common Stock · CUSIP 03879J100 · ISIN CA03879J1003

Canadian Bio Tech Company

127 institutional holders
46,624,74546.6m shares reported held*
29.8% of all shares outstanding*
$89.2mreported value*

* 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 ≈ $1.91. Options: 10 managers hold calls ($1.9m notional), 10 hold puts ($1.3m).

Biggest calls

GROUP ONE TRADING LLC — $591.0k309.3k shares
CITADEL ADVISORS LLC — $418.0k218.8k shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP — $277.0k145.2k shares
Caption Management, LLC — $192.0k100.0k shares
PEAK6 Investments LLC — $191.0k100.1k shares
SIMPLEX TRADING, LLC — $158.0k83.2k shares
WOLVERINE TRADING, LLC — $71.0k36.0k shares
JANE STREET GROUP, LLC — $49.0k25.5k shares
CONCOURSE FINANCIAL GROUP SECURITIES, INC. — $00 shares
Cutler Group LLC / CA — $0200 shares

Biggest puts

SUSQUEHANNA INTERNATIONAL GROUP, LLP — $516.0k270.3k shares
PEAK6 Investments LLC — $299.0k156.8k shares
Caption Management, LLC — $192.0k100.0k shares
CITADEL ADVISORS LLC — $98.0k51.4k shares
WOLVERINE TRADING, LLC — $54.0k27.3k shares
GROUP ONE TRADING LLC — $53.0k27.5k shares
SIMPLEX TRADING, LLC — $38.0k20.1k shares
Parallax Volatility Advisers, L.P. — $1.0k500 shares
CONCOURSE FINANCIAL GROUP SECURITIES, INC. — $00 shares
Cutler Group LLC / CA — $0700 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.

HolderStakeChangeShares Last filed
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% -1.0 pts 29.9m≈ $143.4m 2026-10-05
MORGAN STANLEY 13G · institution +3.4 pts · filed 2026-10-07 12.2% +3.4 pts 18.7m≈ $89.7m 2026-10-07
Two Seas Capital LP 13G · institution +2.9 pts · filed 2026-05-15 9.4% +2.9 pts 18.6m≈ $89.1m 2026-05-15
Whitefort Capital Management, LP 13G · passive investor no change · filed 2026-09-04 8.0% no change 15.8m≈ $75.8m 2026-09-04
BlackRock, Inc. 13G · institution filed 2026-10-27 7.2% 14.3m≈ $68.8m 2026-10-27

Insider purchases and sales in Q3 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)

BuyingSelling
101Q4 20: 0 buyingQ4 20: 0 sellingQ1 21: 0 buyingQ1 21: 0 sellingQ1 21Q2 21: 0 buyingQ2 21: 0 sellingQ3 21: 0 buyingQ3 21: 0 sellingQ3 21Q4 21: 0 buyingQ4 21: 1 sellingQ1 22: 0 buyingQ1 22: 0 sellingQ1 22Q2 22: 0 buyingQ2 22: 0 sellingQ3 22: 0 buyingQ3 22: 0 sellingQ3 22
Numbers
QuarterBuyingBoughtSellingSoldSold under a plan
Q4 20200—0——
Q1 20210—0——
Q2 20210—0——
Q3 20210—0——
Q4 20210—1$1.0m—
Q1 20220—0——
Q2 20220—0——
Q3 20220—0——

None reported in Q3 2022.

Holders, Q3 2022

#ManagerLocationShares Value% of their portfolioChangeShares change
1 BlackRock Inc. 0.00% of their portfolio New York, NY 7,467,8187.5m $14.3m $14.3m 0.00% —
2 Two Seas Capital LP 12.39% of their portfolio RYE, NY 5,653,9175.7m $10.8m $10.8m 12.39% —
3 VANGUARD GROUP INC 0.00% of their portfolio Valley Forge, PA 5,265,8845.3m $10.1m $10.1m 0.00% —
4 Hudson Bay Capital Management LP 0.10% of their portfolio STAMFORD, CT 4,961,8955.0m $9.5m $9.5m 0.10% —
5 MILLENNIUM MANAGEMENT LLC 0.01% of their portfolio NEW YORK, NY 3,510,1883.5m $6.7m $6.7m 0.01% —
6 STATE STREET CORP 0.00% of their portfolio BOSTON, MA 2,011,3762.0m $3.8m $3.8m 0.00% —
7 GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio BOSTON, MA 2,009,8402.0m $3.8m $3.8m 0.00% —
8 FourWorld Capital Management LLC 7.43% of their portfolio NEW YORK, NY 2,000,0902.0m $3.8m $3.8m 7.43% —
9 Assenagon Asset Management S.A. 0.02% of their portfolio SENNINGERBERG, N4 1,895,1611.9m $3.6m $3.6m 0.02% —
10 OSAIC HOLDINGS, INC. 0.01% of their portfolio SCOTTSDALE, AZ 1,364,5231.4m $2.6m $2.6m 0.01% —
11 Oasis Management Co Ltd. 0.34% of their portfolio GRAND CAYMAN, E9 1,026,6721.0m $2.0m $2.0m 0.34% —
12 NORTHERN TRUST CORP 0.00% of their portfolio CHICAGO, IL 900,547900.5k $1.7m $1.7m 0.00% —
13 BOOTHBAY FUND MANAGEMENT, LLC 0.05% of their portfolio NEW YORK, NY 767,400767.4k $1.5m $1.5m 0.05% —
14 GOLDMAN SACHS GROUP INC 0.00% of their portfolio NEW YORK, NY 651,036651.0k $1.2m $1.2m 0.00% —
15 WELLINGTON MANAGEMENT GROUP LLP 0.00% of their portfolio Boston, MA 433,564433.6k $828.0k $828.0k 0.00% —
16 PRIMECAP MANAGEMENT CO/CA/ 0.00% of their portfolio PASADENA, CA 423,300423.3k $809.0k $809.0k 0.00% —
17 MARSHALL WACE, LLP 0.00% of their portfolio LONDON, X0 392,932392.9k $751.0k $751.0k 0.00% —
18 Bank of New York Mellon Corp 0.00% of their portfolio NEW YORK, NY 385,461385.5k $736.0k $736.0k 0.00% —
19 Nuveen Asset Management, LLC 0.00% of their portfolio CHICAGO, IL 326,140326.1k $623.0k $623.0k 0.00% —
20 BANK OF MONTREAL /CAN/ 0.00% of their portfolio TORONTO, A6 320,003320.0k $707.0k $707.0k 0.00% —
21 SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio BALA CYNWYD, PA 289,562289.6k $553.0k $553.0k 0.00% —
22 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio SAN FRANCISCO, CA 287,419287.4k $549.0k $549.0k 0.00% —
23 DekaBank Deutsche Girozentrale 0.00% of their portfolio FRANKFURT, 2M 250,000250.0k $485.0k $485.0k 0.00% —
24 JACOB ASSET MANAGEMENT OF NEW YORK LLC 0.46% of their portfolio HERMOSA BEACH, CA 220,000220.0k $420.0k $420.0k 0.46% —
25 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 212,006212.0k $405.0k $405.0k 0.00% —
26 Parallax Volatility Advisers, L.P. 0.01% of their portfolio San Francisco, CA 200,528200.5k $383.0k $383.0k 0.01% —
27 Kepos Capital LP 0.05% of their portfolio NEW YORK, NY 200,000200.0k $382.0k $382.0k 0.05% —
28 CITADEL ADVISORS LLC 0.00% of their portfolio MIAMI, FL 187,759187.8k $358.0k $358.0k 0.00% —
29 FMR LLC 0.00% of their portfolio BOSTON, MA 186,776186.8k $357.0k $357.0k 0.00% —
30 JACOBS LEVY EQUITY MANAGEMENT, INC 0.00% of their portfolio FLORHAM PARK, NJ 183,867183.9k $351.0k $351.0k 0.00% —
31 RHUMBLINE ADVISERS 0.00% of their portfolio BOSTON, MA 142,840142.8k $273.0k $273.0k 0.00% —
32 AMERIPRISE FINANCIAL INC 0.00% of their portfolio MINNEAPOLIS, MN 136,300136.3k $260.0k $260.0k 0.00% —
33 GSA CAPITAL PARTNERS LLP 0.02% of their portfolio LONDON, X0 94,80094.8k $181.0k $181.0k 0.02% —
34 ROYAL BANK OF CANADA 0.00% of their portfolio TORONTO, A6 92,54192.5k $177.0k $177.0k 0.00% —
35 Connor, Clark & Lunn Investment Management Ltd. 0.00% of their portfolio VANCOUVER, A1 90,49790.5k $173.0k $173.0k 0.00% —
36 Man Group plc 0.00% of their portfolio LONDON, X0 87,24687.2k $167.0k $167.0k 0.00% —
37 ALPS ADVISORS INC 0.00% of their portfolio Denver, CO 81,87881.9k $156.0k $156.0k 0.00% —
38 NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio ALBANY, NY 75,47675.5k $144.0k $144.0k 0.00% —
39 JPMORGAN CHASE & CO 0.00% of their portfolio NEW YORK, NY 69,73469.7k $133.0k $133.0k 0.00% —
40 PEAK6 Investments LLC 0.00% of their portfolio CHICAGO, IL 62,40062.4k $119.0k $119.0k 0.00% —
41 MetLife Investment Management, LLC 0.00% of their portfolio Whippany, NJ 58,45658.5k $111.7k $111.7k 0.00% —
42 BANK OF AMERICA CORP /DE/ 0.00% of their portfolio CHARLOTTE, NC 55,18455.2k $105.0k $105.0k 0.00% —
43 Rafferty Asset Management, LLC 0.00% of their portfolio New York, NY 54,32954.3k $104.0k $104.0k 0.00% —
44 LMR Partners LLP 0.00% of their portfolio LONDON, X0 53,94053.9k $103.0k $103.0k 0.00% —
45 PRELUDE CAPITAL MANAGEMENT, LLC 0.01% of their portfolio NEW YORK, NY 53,87753.9k $103.0k $103.0k 0.01% —
46 AMERICAN INTERNATIONAL GROUP, INC. 0.00% of their portfolio New York, NY 51,26951.3k $98.0k $98.0k 0.00% —
47 DEUTSCHE BANK AG\ 0.00% of their portfolio FRANKFURT AM MAIN, 2M 49,54149.5k $94.0k $94.0k 0.00% —
48 RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio NEW YORK, NY 45,66045.7k $87.0k $87.0k 0.00% —
49 ETF MANAGERS GROUP, LLC 0.00% of their portfolio Summit, NJ 44,25044.2k $85.0k $85.0k 0.00% —
50 VIRTUS ADVISERS, LLC 0.03% of their portfolio HARTFORD, CT 42,98843.0k $82.0k $82.0k 0.03% —
51 CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio WEST SACRAMENTO, CA 42,62642.6k $81.0k $81.0k 0.00% —
52 OCCUDO QUANTITATIVE STRATEGIES LP 0.01% of their portfolio FORT LAUDERDALE, FL 42,54842.5k $81.0k $81.0k 0.01% —
53 VOYA INVESTMENT MANAGEMENT LLC 0.00% of their portfolio ATLANTA, GA 42,20842.2k $80.6k $80.6k 0.00% —
54 MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.00% of their portfolio Toronto, A6 41,99342.0k $80.2k $80.2k 0.00% —
55 Wealth Management Associates, Inc. 0.05% of their portfolio Cherry Hill, NJ 40,87040.9k $78.1k $78.1k 0.05% —
56 SIMPLEX TRADING, LLC 0.00% of their portfolio CHICAGO, IL 40,55640.6k $77.0k $77.0k 0.00% —
57 XTX Topco Ltd 0.02% of their portfolio LONDON, X0 39,75539.8k $76.0k $76.0k 0.02% —
58 PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO 0.00% of their portfolio COLUMBUS, OH 39,00039.0k $74.0k $74.0k 0.00% —
59 BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio PARIS, I0 38,66838.7k $73.9k $73.9k 0.00% —
60 Invesco Ltd. 0.00% of their portfolio ATLANTA, GA 37,96538.0k $72.0k $72.0k 0.00% —
61 PRUDENTIAL FINANCIAL INC 0.00% of their portfolio NEWARK, NJ 34,36534.4k $65.0k $65.0k 0.00% —
62 Caption Management, LLC 0.01% of their portfolio OKLAHOMA CITY, OK 33,78433.8k $64.0k $64.0k 0.01% —
63 State of Wyoming 0.03% of their portfolio CHEYENNE, WY 32,83232.8k $63.0k $63.0k 0.03% —
64 Schonfeld Strategic Advisors LLC 0.00% of their portfolio NEW YORK, NY 31,90031.9k $61.0k $61.0k 0.00% —
65 ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio NASHVILLE, TN 31,80031.8k $61.0k $61.0k 0.00% —
66 FRANKLIN RESOURCES INC 0.00% of their portfolio San Mateo, CA 31,55131.6k $60.0k $60.0k 0.00% —
67 SG Americas Securities, LLC 0.00% of their portfolio NEW YORK, NY 29,47529.5k $56.0k $56.0k 0.00% —
68 VERUS CAPITAL PARTNERS, LLC 0.01% of their portfolio SCOTTSDALE, AZ 27,70027.7k $53.0k $53.0k 0.01% —
69 ProShare Advisors LLC 0.00% of their portfolio BETHESDA, MD 24,51524.5k $47.0k $47.0k 0.00% —
70 TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio NEW YORK, NY 24,44224.4k $47.0k $47.0k 0.00% —
71 LAZARD ASSET MANAGEMENT LLC 0.00% of their portfolio NEW YORK, NY 23,53623.5k $44.0k $44.0k 0.00% —
72 Leonteq Securities AG 0.00% of their portfolio ZURICH, V8 23,00023.0k $43.9k $43.9k 0.00% —
73 AQR CAPITAL MANAGEMENT LLC 0.00% of their portfolio Greenwich, CT 22,82222.8k $44.0k $44.0k 0.00% —
74 Verition Fund Management LLC 0.00% of their portfolio GREENWICH, CT 22,02222.0k $42.0k $42.0k 0.00% —
75 Aquatic Capital Management LLC 0.00% of their portfolio CHICAGO, IL 21,60021.6k $41.0k $41.0k 0.00% —
76 PATHSTONE FAMILY OFFICE, LLC 0.00% of their portfolio ENGLEWOOD, NJ 20,00020.0k $38.1k $38.1k 0.00% —
77 JANE STREET GROUP, LLC 0.00% of their portfolio NEW YORK, NY 18,86918.9k $36.0k $36.0k 0.00% —
78 Dynamic Technology Lab Private Ltd 0.00% of their portfolio SINGAPORE, U0 18,52218.5k $35.0k $35.0k 0.00% —
79 PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio BALTIMORE, MD 18,07518.1k $35.0k $35.0k 0.00% —
80 BUCKINGHAM STRATEGIC WEALTH, LLC 0.00% of their portfolio CLAYTON, MO 17,72017.7k $34.0k $34.0k 0.00% —
81 AMALGAMATED BANK 0.00% of their portfolio NEW YORK, NY 15,68515.7k $30.0k $30.0k 0.00% —
82 Arete Wealth Advisors, LLC 0.00% of their portfolio CHICAGO, IL 15,00015.0k $29.0k $29.0k 0.00% —
83 Simplicity Solutions, LLC 0.00% of their portfolio MINNEAPOLIS, MN 14,34314.3k $27.0k $27.0k 0.00% —
84 PRINCIPAL FINANCIAL GROUP INC 0.00% of their portfolio DES MOINES, IA 14,03114.0k $27.0k $27.0k 0.00% —
85 MONETA GROUP INVESTMENT ADVISORS LLC 0.00% of their portfolio ST LOUIS, MO 13,08913.1k $25.0k $25.0k 0.00% —
86 Mariner, LLC 0.00% of their portfolio Overland Park, KS 12,99713.0k $25.0k $25.0k 0.00% —
87 WMG Financial Advisors, LLC 0.02% of their portfolio Knoxville, TN 12,60512.6k $24.0k $24.0k 0.02% —
88 Balyasny Asset Management L.P. 0.00% of their portfolio Chicago, IL 12,24912.2k $23.0k $23.0k 0.00% —
89 Legal & General Group Plc 0.00% of their portfolio London, X0 12,19812.2k $23.0k $23.0k 0.00% —
90 Apollon Wealth Management, LLC 0.00% of their portfolio MOUNT PLEASANT, SC 11,60011.6k $22.0k $22.0k 0.00% —
91 WOLVERINE TRADING, LLC 0.00% of their portfolio CHICAGO, IL 11,03211.0k $22.0k $22.0k 0.00% —
92 Cubist Systematic Strategies, LLC 0.00% of their portfolio STAMFORD, CT 10,72610.7k $20.0k $20.0k 0.00% —
93 BENJAMIN F. EDWARDS & COMPANY, INC. 0.00% of their portfolio ST. LOUIS, MO 10,69910.7k $20.0k $20.0k 0.00% —
94 Tower Research Capital LLC (TRC) 0.00% of their portfolio NEW YORK, NY 10,64810.6k $21.0k $21.0k 0.00% —
95 Front Row Advisors LLC 0.01% of their portfolio TIBURON, CA 10,50010.5k $20.0k $20.0k 0.01% —
96 Point72 Hong Kong Ltd 0.00% of their portfolio HONG KONG, K3 9,1889.2k $18.0k $18.0k 0.00% —
97 WELLS FARGO & COMPANY/MN 0.00% of their portfolio SAN FRANCISCO, CA 7,9227.9k $14.0k $14.0k 0.00% —
98 Zurcher Kantonalbank (Zurich Cantonalbank) 0.00% of their portfolio ZURICH, V8 7,3637.4k $14.0k $14.0k 0.00% —
99 Financial Synergies Wealth Advisors, Inc. 0.00% of their portfolio HOUSTON, TX 7,3507.3k $14.0k $14.0k 0.00% —
100 Metropolitan Life Insurance Co/NY 0.00% of their portfolio New York, NY 6,5936.6k $12.6k $12.6k 0.00% —