Arbutus Biopharma Corp (ABUS) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

183,813,043Shares Outstanding

18,675,557Shares held by institutions

$77,877,073Value of institutional holdings

66.49%Institutional ownership %

7.47%Shares Changed QoQ

167No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

The institutional landscape for Arbutus Biopharma Corp (NASDAQ:ABUS) includes 167 filers as of the latest reporting cycle ending December 2025.

Institutional ownership in Arbutus Biopharma edged up to 66.5% in December 2025, compared to 64.6% in September 2025.
The company experienced a 7.47% quarterly change in institutional shares held, alongside an increase of 9.15% in total owners annually.
Of these 167 institutional investors, 75 increased their holdings in Arbutus Biopharma, while 43 of them reduced positions, and 49 investors maintained their exposure.
Collectively, institutional investors increased their stake in Arbutus Biopharma to 122.21Mn shares as of December 2025, a change that is up by 8.49Mn shares quarter on quarter and up 9.10Mn shares year over year.
MORGAN STANLEY continues to be the largest institutional holder of Arbutus Biopharma as of December 31, 2025, with a position of 26.70Mn shares, representing 14.53% of the company's outstanding stock.
Among the most significant buyers of Arbutus Biopharma during December 2025 were ADAR1 Capital Management, LLC (2.51Mn), MORGAN STANLEY (2.25Mn), STATE STREET CORP (1.81Mn), Two Seas Capital LP (1.60Mn), UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC (890.90K).
Leading sellers of Arbutus Biopharma stock in December 2025 included GOLDMAN SACHS GROUP INC (1.43Mn), ADAGE CAPITAL PARTNERS GP, L.L.C. (675.00K), UBS Group AG (627.30K), Saba Capital Management, L.P. (330.89K), BOOTHBAY FUND MANAGEMENT, LLC (234.43K).
The top 10 institutional holders of Arbutus Biopharma for the quarter ending December 2025 included MORGAN STANLEY (26.70Mn), Whitefort Capital Management, LP (13.34Mn), BlackRock, Inc. (13.05Mn), Two Seas Capital LP (12.59Mn), VANGUARD GROUP INC (9.24Mn), STATE STREET CORP (5.91Mn), ADAR1 Capital Management, LLC (5.42Mn), ADAGE CAPITAL PARTNERS GP, L.L.C. (4.34Mn), GEODE CAPITAL MANAGEMENT, LLC (3.68Mn), Woodline Partners LP (2.19Mn).

167 Institutional Holders

18,675,557 Total Shares Held

Rows:

Download Data

Owner Name	Date	Shares Held	Change (QoQ)	Change (%)	Value (USD)
MORGAN STANLEY	31 Dec, 2025	26,702,776	2,252,164	9.21%	$128,440,353.00
Whitefort Capital Management, LP	31 Dec, 2025	13,343,228	0	0.00%	$64,180,927.00
BlackRock, Inc.	31 Dec, 2025	13,052,861	375,365	2.96%	$62,784,261.00
Two Seas Capital LP	31 Dec, 2025	12,589,158	1,597,897	14.54%	$60,553,850.00
VANGUARD GROUP INC	31 Dec, 2025	9,242,437	251,355	2.80%	$44,456,122.00
STATE STREET CORP	31 Dec, 2025	5,908,211	1,809,893	44.16%	$28,418,495.00
ADAR1 Capital Management, LLC	31 Dec, 2025	5,415,109	2,511,883	86.52%	$26,046,674.00
ADAGE CAPITAL PARTNERS GP, L.L.C.	31 Dec, 2025	4,339,941	-675,000	-13.46%	$20,875,116.00
GEODE CAPITAL MANAGEMENT, LLC	31 Dec, 2025	3,677,307	11,145	0.30%	$17,691,051.00
Woodline Partners LP	31 Dec, 2025	2,186,553	20,951	0.97%	$10,517,320.00
BlackBarn Capital Partners LP	31 Dec, 2025	1,850,000	-150,000	-7.50%	$8,898,500.00
BANK OF AMERICA CORP /DE/	31 Dec, 2025	1,832,704	381,882	26.32%	$8,815,305.00
Rubric Capital Management LP	31 Dec, 2025	1,575,376	0	0.00%	$7,577,559.00
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	31 Dec, 2025	1,562,265	287,432	22.55%	$7,514,495.00
OSAIC HOLDINGS, INC.	31 Dec, 2025	1,348,224	9,721	0.73%	$6,484,957.00
NORTHERN TRUST CORP	31 Dec, 2025	1,236,689	-52,724	-4.09%	$5,948,475.00
STEMPOINT CAPITAL LP	31 Dec, 2025	986,751	781,363	380.43%	$4,746,272.00
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	31 Dec, 2025	890,898	890,898	0.00%	$4,285,220.00
Rangeley Capital, LLC	31 Dec, 2025	840,000	0	0.00%	$4,040,400.00
BANK OF MONTREAL /CAN/	31 Dec, 2025	766,656	1,393	0.18%	$3,687,615.00

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