On this page, we present all of the funds holding AVIR from our database of 13F filers, detailed in the table below. The first column indicates the name of each of the funds holding AVIR, with a link to that fund's top holdings. The next columns indicate the amount of AVIR stock held by each of the funds holding AVIR, followed by the AVIR position size held by the fund, and lastly the date of the quarterly filing period the data represents. In total, we count 108 funds holding AVIR within the last two filing periods in our coverage universe of 13F filers, with the largest position size having been reported by BlackRock Inc.. For more details on the positions held by BlackRock Inc. (or by any of the other funds holding AVIR), click the fund name in the "Holder" column of the funds-holding-AVIR table below.

Holder	Amount	Position Size ($ in 1000's)	As of
BlackRock Inc.	9,443,887	$28,804	12/31/2023
AVIR	9,443,887	$28,804	12/31/2023
BML Capital Management LLC	5,536,710	$22,368	03/31/2024
AVIR	5,536,710	$22,368	03/31/2024
EcoR1 Capital LLC	6,995,861	$21,337	12/31/2023
AVIR	6,995,861	$21,337	12/31/2023
FMR LLC	5,350,659	$16,320	12/31/2023
AVIR	5,350,659	$16,320	12/31/2023
Vanguard Group Inc.	4,599,710	$14,029	12/31/2023
AVIR	4,599,710	$14,029	12/31/2023
Tang Capital Management LLC	4,076,741	$12,434	12/31/2023
AVIR	4,076,741	$12,434	12/31/2023
Bain Capital Life Sciences Investors LLC	2,485,638	$7,581	12/31/2023
AVIR	2,485,638	$7,581	12/31/2023
Geode Capital Management LLC	1,807,912	$5,515	12/31/2023
AVIR	1,807,912	$5,515	12/31/2023
State Street Corp	1,630,037	$4,972	12/31/2023
AVIR	1,630,037	$4,972	12/31/2023
Renaissance Technologies LLC	1,496,303	$4,564	12/31/2023
AVIR	1,496,303	$4,564	12/31/2023
Acadian Asset Management LLC	962,458	$2,934	12/31/2023
AVIR	962,458	$2,934	12/31/2023
Stonepine Capital Management LLC	839,514	$2,561	12/31/2023
AVIR	839,514	$2,561	12/31/2023
Northern Trust Corp	711,513	$2,170	12/31/2023
AVIR	711,513	$2,170	12/31/2023
Federated Hermes Inc.	595,692	$1,817	12/31/2023
AVIR	595,692	$1,817	12/31/2023
Charles Schwab Investment Management Inc.	584,326	$1,782	12/31/2023
AVIR	584,326	$1,782	12/31/2023
Jacobs Levy Equity Management Inc.	550,537	$1,679	12/31/2023
AVIR	550,537	$1,679	12/31/2023
Newtyn Management LLC	508,474	$1,551	12/31/2023
AVIR	508,474	$1,551	12/31/2023
Morgan Stanley	407,656	$1,243	12/31/2023
AVIR	407,656	$1,243	12/31/2023
Banque Pictet & Cie SA	345,077	$1,052	12/31/2023
AVIR	345,077	$1,052	12/31/2023
Two Sigma Advisers LP	319,100	$973	12/31/2023
AVIR	319,100	$973	12/31/2023
Bank of New York Mellon Corp	239,557	$968	03/31/2024
AVIR	239,557	$968	03/31/2024
Nuveen Asset Management LLC	291,091	$888	12/31/2023
AVIR	291,091	$888	12/31/2023
CM Management LLC	270,000	$824	12/31/2023
AVIR	270,000	$824	12/31/2023
Bank of America Corp DE	243,724	$743	12/31/2023
AVIR	243,724	$743	12/31/2023
Goldman Sachs Group Inc.	228,840	$698	12/31/2023
AVIR	228,840	$698	12/31/2023
Invesco Ltd.	221,565	$676	12/31/2023
AVIR	221,565	$676	12/31/2023
Barclays PLC	197,087	$601	12/31/2023
AVIR	197,087	$601	12/31/2023
D. E. Shaw & Co. Inc.	185,177	$565	12/31/2023
AVIR	185,177	$565	12/31/2023
Citadel Advisors LLC		$562	12/31/2023
AVIR	173,014	$528	12/31/2023
Call	14,000	$43	12/31/2023
Put	2,800	$9	12/31/2023
Hsbc Holdings PLC	180,371	$554	12/31/2023
AVIR	180,371	$554	12/31/2023
Cubist Systematic Strategies LLC	178,353	$544	12/31/2023
AVIR	178,353	$544	12/31/2023
Auour Investments LLC	177,000	$540	12/31/2023
AVIR	177,000	$540	12/31/2023
Acuitas Investments LLC	171,098	$522	12/31/2023
AVIR	171,098	$522	12/31/2023
Two Sigma Investments LP	161,909	$494	12/31/2023
AVIR	161,909	$494	12/31/2023
Diametric Capital LP	161,524	$493	12/31/2023
AVIR	161,524	$493	12/31/2023
RBF Capital LLC	152,416	$465	12/31/2023
AVIR	152,416	$465	12/31/2023
GSA Capital Partners LLP	149,878	$457	12/31/2023
AVIR	149,878	$457	12/31/2023
Rhumbline Advisers	147,116	$449	12/31/2023
AVIR	147,116	$449	12/31/2023
State of Wisconsin Investment Board	129,900	$396	12/31/2023
AVIR	129,900	$396	12/31/2023
Alliancebernstein L.P.	120,730	$368	12/31/2023
AVIR	120,730	$368	12/31/2023
Prudential Financial Inc.	110,105	$336	12/31/2023
AVIR	110,105	$336	12/31/2023
UBS Group AG	107,646	$328	12/31/2023
AVIR	107,646	$328	12/31/2023
New York Life Investment Management LLC	103,087	$314	12/31/2023
AVIR	103,087	$314	12/31/2023
Strs Ohio	100,700	$307	12/31/2023
AVIR	100,700	$307	12/31/2023
Dimensional Fund Advisors LP	92,351	$282	12/31/2023
AVIR	92,351	$282	12/31/2023
Susquehanna Portfolio Strategies LLC	83,275	$254	12/31/2023
AVIR	83,275	$254	12/31/2023
American Century Companies Inc.	78,754	$240	12/31/2023
AVIR	78,754	$240	12/31/2023
Jane Street Group LLC	78,743	$240	12/31/2023
AVIR	78,743	$240	12/31/2023
Macquarie Group Ltd.	70,000	$214	12/31/2023
AVIR	70,000	$214	12/31/2023
JPMorgan Chase & Co.	68,426	$209	12/31/2023
AVIR	68,426	$209	12/31/2023
Alps Advisors Inc.	58,436	$178	12/31/2023
AVIR	58,436	$178	12/31/2023
Price T Rowe Associates Inc. MD	55,169	$169	12/31/2023
AVIR	55,169	$169	12/31/2023
Prelude Capital Management LLC	54,578	$166	12/31/2023
AVIR	54,578	$166	12/31/2023
Ameriprise Financial Inc.	53,489	$163	12/31/2023
AVIR	53,489	$163	12/31/2023
Qube Research & Technologies Ltd	53,038	$162	12/31/2023
AVIR	53,038	$162	12/31/2023
Connor Clark & Lunn Investment Management Ltd.	52,132	$159	12/31/2023
AVIR	52,132	$159	12/31/2023
Shay Capital LLC	50,139	$153	12/31/2023
AVIR	50,139	$153	12/31/2023
Marquette Asset Management LLC	47,166	$144	12/31/2023
AVIR	47,166	$144	12/31/2023
MetLife Investment Management LLC	47,234	$144	12/31/2023
AVIR	47,234	$144	12/31/2023
CSS LLC IL		$143	12/31/2023
Call	46,800	$143	12/31/2023
Put	23,100	$70	12/31/2023
AVIR	23,016	$70	12/31/2023
SG Americas Securities LLC	42,521	$130	12/31/2023
AVIR	42,521	$130	12/31/2023
Susquehanna International Group LLP		$128	12/31/2023
AVIR	53,344	$163	12/31/2023
Put	29,400	$90	12/31/2023
Call	17,900	$55	12/31/2023
Deutsche Bank AG	38,475	$117	12/31/2023
AVIR	38,475	$117	12/31/2023
American International Group Inc.	38,104	$116	12/31/2023
AVIR	38,104	$116	12/31/2023
Algert Global LLC	36,900	$113	12/31/2023
AVIR	36,900	$113	12/31/2023
Norges Bank	36,200	$110	12/31/2023
AVIR	36,200	$110	12/31/2023
Principal Financial Group Inc.	25,374	$103	03/31/2024
AVIR	25,374	$103	03/31/2024
Voya Investment Management LLC	33,286	$102	12/31/2023
AVIR	33,286	$102	12/31/2023
The Manufacturers Life Insurance Company	32,985	$101	12/31/2023
AVIR	32,985	$101	12/31/2023
Tower Research Capital LLC TRC	30,340	$93	12/31/2023
AVIR	30,340	$93	12/31/2023
Royal Bank of Canada	29,609	$91	12/31/2023
AVIR	29,609	$91	12/31/2023
Brevan Howard Capital Management LP	25,717	$78	12/31/2023
AVIR	25,717	$78	12/31/2023
Wells Fargo & Company MN	24,064	$73	12/31/2023
AVIR	24,064	$73	12/31/2023
State Board of Administration of Florida Retirement System	22,010	$67	12/31/2023
AVIR	22,010	$67	12/31/2023
China Universal Asset Management Co. Ltd.	16,179	$65	03/31/2024
AVIR	16,179	$65	03/31/2024
Public Employees Retirement System of Ohio	18,012	$55	12/31/2023
AVIR	18,012	$55	12/31/2023
ProShare Advisors LLC	18,020	$55	12/31/2023
AVIR	18,020	$55	12/31/2023
Group One Trading L.P.		$52	12/31/2023
Call	17,200	$52	12/31/2023
ExodusPoint Capital Management LP	16,762	$51	12/31/2023
AVIR	16,762	$51	12/31/2023
New York State Common Retirement Fund	16,345	$50	12/31/2023
AVIR	16,345	$50	12/31/2023
Sunpointe LLC	11,943	$48	03/31/2024
AVIR	11,943	$48	03/31/2024
Millennium Management LLC	15,600	$48	12/31/2023
AVIR	15,600	$48	12/31/2023
Wolverine Trading LLC	13,874	$42	12/31/2023
AVIR	13,874	$42	12/31/2023
Point72 Middle East FZE	13,148	$40	12/31/2023
AVIR	13,148	$40	12/31/2023
RPO LLC	12,947	$39	12/31/2023
AVIR	12,947	$39	12/31/2023
Citigroup Inc.	12,493	$38	12/31/2023
AVIR	12,493	$38	12/31/2023
California State Teachers Retirement System	12,618	$38	12/31/2023
AVIR	12,618	$38	12/31/2023
Graham Capital Management L.P.	11,387	$35	12/31/2023
AVIR	11,387	$35	12/31/2023
Integrated Wealth Concepts LLC	10,000	$30	12/31/2023
AVIR	10,000	$30	12/31/2023
Ronald Blue Trust Inc.	8,700	$26	12/31/2023
AVIR	8,700	$26	12/31/2023
Ameritas Investment Partners Inc.	7,514	$23	12/31/2023
AVIR	7,514	$23	12/31/2023
Quantbot Technologies LP	7,222	$22	12/31/2023
AVIR	7,222	$22	12/31/2023
Advisor Group Holdings Inc.	7,326	$22	12/31/2023
AVIR	7,326	$22	12/31/2023
Legal & General Group Plc	6,044	$18	12/31/2023
AVIR	6,044	$18	12/31/2023
Russell Investments Group Ltd.	4,910	$15	12/31/2023
AVIR	4,910	$15	12/31/2023
Amalgamated Bank	2,673	$11	03/31/2024
AVIR	2,673	$11	03/31/2024
Capital Advisors Ltd. LLC	1,641	$7	03/31/2024
AVIR	1,641	$7	03/31/2024
Metropolitan Life Insurance Co NY	2,197	$7	12/31/2023
AVIR	2,197	$7	12/31/2023
Daiwa Securities Group Inc.	242	$1	12/31/2023
AVIR	242	$1	12/31/2023
O Dell Group LLC	200	$1	12/31/2023
AVIR	200	$1	12/31/2023
Farther Finance Advisors LLC	216	$1	12/31/2023
AVIR	216	$1	12/31/2023
The PNC Financial Services Group Inc.	74	$0	12/31/2023
AVIR	74	$0	12/31/2023
Proequities Inc.		$0	12/31/2023
Put	0	$0	12/31/2023
AVIR	0	$0	12/31/2023
Call	0	$0	12/31/2023
Nisa Investment Advisors LLC	23	$0	12/31/2023
AVIR	23	$0	12/31/2023
Colonial Trust Advisors	46	$0	12/31/2023
AVIR	46	$0	12/31/2023
GPS Wealth Strategies Group LLC	13	$0	12/31/2023
AVIR	13	$0	12/31/2023
Frazier Financial Advisors LLC	120	$0	12/31/2023
AVIR	120	$0	12/31/2023
LM Advisors LLC	50	$0	12/31/2023
AVIR	50	$0	12/31/2023
Simplex Trading LLC	10,400	$-1,173	03/31/2024
Put	417,400	$1,686	03/31/2024
AVIR	116,655	$471	03/31/2024
Call	10,400	$42	03/31/2024