18.71%	% of shares held by all insiders
25.42%	% of shares held by institutions
31.27%	% of float held by institutions
93	Number of institutions holding shares

Holder	Shares	Date reported	% out	Value
RTW Investments LP	5,978,355	30 Dec 2020	6.21%	21,223,160
Vanguard Group, Inc. (The)	2,747,759	30 Dec 2020	2.85%	9,754,544
Think Investments LP	2,000,000	30 Dec 2020	2.08%	7,100,000
Blackrock Inc.	1,821,107	30 Dec 2020	1.89%	6,464,929
Morgan Stanley	1,422,264	30 Dec 2020	1.48%	5,049,037
Advisor Group, Inc.	1,371,089	30 Dec 2020	1.42%	4,867,365
Hudson Bay Capital Management LP	725,000	30 Dec 2020	0.75%	2,573,750
Ameriprise Financial, Inc.	637,292	30 Dec 2020	0.66%	2,262,386
Primecap Management Company	500,000	30 Dec 2020	0.52%	1,775,000
Cowen and Company, LLC	465,317	30 Dec 2020	0.48%	1,651,875

Holder	Shares	Date reported	% out	Value
Vanguard Total Stock Market Index Fund	1,800,274	30 Dec 2020	1.87%	6,390,972
Vanguard Extended Market Index Fund	768,777	30 Dec 2020	0.80%	2,729,158
iShares NASDAQ Biotechnology ETF	713,098	30 Mar 2021	0.74%	2,374,616
Primecap Odyssey Aggressive Growth Fund	500,000	30 Jan 2021	0.52%	1,890,000
Fidelity Extended Market Index Fund	289,757	27 Feb 2021	0.30%	1,086,588
Jacob Discovery Fd	240,000	27 Feb 2021	0.25%	900,000
iShares Micro Cap ETF	182,354	30 Mar 2021	0.19%	607,238
Fidelity Total Market Index Fund	77,679	27 Feb 2021	0.08%	291,296
Vanguard Institutional Index-Inst Total Stock Market Ind	64,217	30 Dec 2020	0.07%	227,970
Vanguard Balanced Index Fund	62,345	30 Dec 2020	0.06%	221,324

We need to talk about who is doing the 'office housework'

Arbutus Biopharma Corporation (ABUS)