Arbutus Biopharma Corp: which funds bought and sold

Institutions that bought and sold Arbutus Biopharma shares in Q2 2026, from the holdings they reported to the SEC on Form 13F for March 31, 2026 and June 30, 2026.

Between March 31, 2026 and June 30, 2026, 96 institutions that filed 13F reports for both quarters added to or opened positions in Arbutus Biopharma, and 63 cut or closed them. Together they added a net 969K shares, +0.7% on what they held at the start of the quarter. Active managers and hedge funds on our list were net sellers of 1.0M shares (−2.8%); index fund managers were net buyers of 3.4M shares (+9.6%). 34 opened a new position and 22 sold out entirely.

Bought, Q2 2026 96 institutions, 34 of them new holders Sold, Q2 2026 63 institutions, 22 of them sold out

Net change, all compared +969K shares (+0.7%)

Net change, active managers −1.0M shares (−2.8%), 22 bought, 12 sold

Buyers versus sellers

institutions compared, 198

96 bought 39 63 sold

Active managers and hedge funds 22 bought · 12 sold · −1.0M

Index fund managers 10 bought · 2 sold · +3.4M

Other institutions 64 bought · 49 sold · −1.4M

Biggest buyers

by change in shares held

Biggest buyers
Institution	Change in shares	Shares June 30, 2026	Value
Goldman Sachs Group Inc	+2.4M +218.7%	3.5M	$16.8M
Nomura Holdings Inc	+1.6M New position	1.6M	$7.9M
State Street Corp Index funds	+1.5M +24.1%	7.9M	$37.8M
Bank Of America Corp	+963K +57.2%	2.6M	$12.7M
Rubric Capital Management LP Hedge fund	+907K +13.7%	7.5M	$36.2M
Whitefort Capital Management, LP	+863K +5.8%	15.8M	$75.8M
Blackrock, Inc. Index funds	+799K +6.2%	13.8M	$66.1M
Arrowstreet Capital, Limited Partnership Hedge fund	+651K New position	651K	$3.1M
Mackenzie Financial Corp	+614K New position	614K	$2.9M
Los Angeles Capital Management LLC Active manager	+602K New position	602K	$2.9M
Two Seas Capital LP Hedge fund	+538K +2.9%	19.1M	$91.7M
Man Group PLC Hedge fund	+473K New position	473K	$2.3M
Centerbook Partners LP Hedge fund	+445K New position	445K	$2.1M
Deltroit Asset Management (UK) LLP	+400K +50.0%	1.2M	$5.8M
Geode Capital Management, LLC Index funds	+346K +9.2%	4.1M	$19.8M
Vanguard Capital Management LLC Index funds	+322K +4.8%	7.0M	$33.7M
Woodline Partners LP Hedge fund	+272K +13.5%	2.3M	$11M
Susquehanna Portfolio Strategies, LLC	+245K +1301.1%	264K	$1.3M
D. E. Shaw & Co., Inc. Hedge fund	+239K +166.7%	382K	$1.8M
Nuveen, LLC	+238K +91.7%	497K	$2.4M

Biggest buyers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
Rubric Capital Management LP Hedge fund	+907K +13.7%	7.5M	$36.2M
Arrowstreet Capital, Limited Partnership Hedge fund	+651K New position	651K	$3.1M
Los Angeles Capital Management LLC Active manager	+602K New position	602K	$2.9M
Two Seas Capital LP Hedge fund	+538K +2.9%	19.1M	$91.7M
Man Group PLC Hedge fund	+473K New position	473K	$2.3M
Centerbook Partners LP Hedge fund	+445K New position	445K	$2.1M
Woodline Partners LP Hedge fund	+272K +13.5%	2.3M	$11M
D. E. Shaw & Co., Inc. Hedge fund	+239K +166.7%	382K	$1.8M
Squarepoint Ops LLC Hedge fund	+208K New position	208K	$999,096
Martingale Asset Management L P Active manager	+193K New position	193K	$926,880

Biggest sellers

by change in shares held

Biggest sellers
Institution	Change in shares	Shares June 30, 2026	Value
Morgan Stanley	−8.2M −31.6%	17.7M	$85M
Adage Capital Partners Gp, L.L.C. Hedge fund	−2.7M Sold out	0	—
ADAR1 Capital Management, LLC Hedge fund	−1.9M −59.5%	1.3M	$6.1M
Millennium Management LLC Hedge fund	−642K Sold out	0	—
UBS Am, A Distinct Business Unit Of UBS Asset Management Americas LLC	−577K −68.9%	261K	$1.3M
Citadel Advisors LLC Hedge fund	−272K −40.2%	405K	$1.9M
Quinn Opportunity Partners LLC	−259K −50.4%	255K	$1.2M
Avidity Partners Management LP	−250K Sold out	0	—
Hudson Bay Capital Management LP Hedge fund	−200K −57.1%	150K	$720,000
Raymond James Financial Inc	−191K Sold out	0	—
Jefferies Financial Group Inc.	−182K −9.6%	1.7M	$8.2M
Balyasny Asset Management L.P. Hedge fund	−126K Sold out	0	—
Schroder Investment Management Group Active manager	−121K Sold out	0	—
UBS Group AG	−115K −31.6%	249K	$1.2M
Barclays PLC	−108K −2.5%	4.2M	$20.2M
Entrypoint Capital, LLC	−82K −74.6%	28K	$134,112
Zurcher Kantonalbank (Zurich Cantonalbank)	−70K −55.9%	55K	$265,118
Drw Securities, LLC	−69K Sold out	0	—
Group One Trading LLC	−51K Sold out	0	—
Inceptionr LLC	−33K Sold out	0	—

Biggest sellers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
Adage Capital Partners Gp, L.L.C. Hedge fund	−2.7M Sold out	0	—
ADAR1 Capital Management, LLC Hedge fund	−1.9M −59.5%	1.3M	$6.1M
Millennium Management LLC Hedge fund	−642K Sold out	0	—
Citadel Advisors LLC Hedge fund	−272K −40.2%	405K	$1.9M
Hudson Bay Capital Management LP Hedge fund	−200K −57.1%	150K	$720,000
Balyasny Asset Management L.P. Hedge fund	−126K Sold out	0	—
Schroder Investment Management Group Active manager	−121K Sold out	0	—
Exoduspoint Capital Management, LP Hedge fund	−24K Sold out	0	—
Freestone Grove Partners LP Hedge fund	−18K Sold out	0	—
Gotham Asset Management, LLC Hedge fund	−17K Sold out	0	—

New positions

largest by value

Institution	Shares	Value June 30, 2026
Nomura Holdings Inc	1.6M	$7.9M
Arrowstreet Capital, Limited PartnershipHedge fund	651K	$3.1M
Mackenzie Financial Corp	614K	$2.9M
Los Angeles Capital Management LLCActive manager	602K	$2.9M
Man Group PLCHedge fund	473K	$2.3M
Centerbook Partners LPHedge fund	445K	$2.1M
Squarepoint Ops LLCHedge fund	208K	$999,096
Martingale Asset Management L PActive manager	193K	$926,880
Strs Ohio	169K	$810,720
Two Sigma Investments, LPHedge fund	85K	$407,933

Sold out

largest by value

Institution	Shares	Value March 31, 2026
Adage Capital Partners Gp, L.L.C.Hedge fund	2.7M	$12M
Millennium Management LLCHedge fund	642K	$2.9M
Avidity Partners Management LP	250K	$1.1M
Raymond James Financial Inc	191K	$861,098
Balyasny Asset Management L.P.Hedge fund	126K	$564,845
Schroder Investment Management GroupActive manager	121K	$521,646
Drw Securities, LLC	69K	$310,900
Group One Trading LLC	51K	$228,794
Inceptionr LLC	33K	$146,610
Prelude Capital Management, LLC	25K	$113,931

Who holds the shares

13F holdings at June 30, 2026

Institutions reporting: 177
Ten largest holders: 71.5%
Index fund managers: 27.5%
Active managers and hedge funds: 25.2%

Buying and selling by type of institution, March 31, 2026 to June 30, 2026
Type	Bought	Sold	New	Sold out	Net change in shares	Net %
Active managers and hedge funds	22	12	12	7	−1.0M	−2.8%
Index fund managers	10	2	0	0	+3.4M	+9.6%
Other institutions	64	49	22	15	−1.4M	−2.1%

Active managers and hedge funds: a list we maintain of about 400 well-known stock-picking firms and hedge funds, matched by SEC registration number (CIK) and checked against the filer names each quarter. Index fund managers: the large index houses, such as BlackRock, Vanguard, State Street, Geode and Northern Trust. Every other filer (banks, brokers, wealth managers, pension funds, insurers and firms not on the list) counts as another institution. A firm that files under several SEC registrations appears once for each.

What these filings can and cannot tell you

Form 13F lists the long positions in US-listed shares held by investment managers with more than $100 million in such holdings. Managers file it up to 45 days after each quarter ends, so this page shows what funds held at the end of each quarter, not what they are doing now: a position may have changed since. Short positions, most derivatives and smaller managers are not included, and a cut can mean a fund lost clients or rebalanced rather than a view on Arbutus Biopharma.

Only managers that filed a holdings report for both quarters are compared (198 here). 3 other holders are left out: first-time or late filers, firms that changed their SEC registration, and filings that withheld positions under confidential treatment, any of which would otherwise look like a new position or a sale. Figures are as reported by each manager in the SEC's quarterly 13F data sets; option positions are excluded.

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