BLAIR WILLIAM & CO/IL

Position in AVIR — Atea Pharmaceuticals, Inc.

CIK 902367 CHICAGO, IL

Position in AVIR

as of Jun 30, 2026 · filed Aug 11, 2026 Compact

Position Value

$52,661

-$1,338 QoQ

Shares Held

11,325

+12.8% QoQ

Ownership

0.014%

of shares outstanding

% of Portfolio

0.00%

of 13F equity value

Holder Rank

#88

of 124 holders

Holding Since

Dec 2020

12 quarters on record

Voting authority Sole 97% Shared 0% None 3%

Healthcare · as of Jun 30, 2026

BLAIR WILLIAM & CO/IL holds $157,670,224 across 60 Biotechnology names. AVIR ranks #54 (0.0% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	TECH	BIO-TECHNE Corp	513,573	$36,283,932
2	ARGX	Argenx SE	27,666	$25,667,684
3	VKTX	Viking Therapeutics, Inc.	416,766	$16,258,041
4	EXEL	Exelixis, Inc.	243,215	$13,233,328
5	VRTX	Vertex Pharmaceuticals Inc / Ma	18,400	$9,139,832
6	SLDB	Solid Biosciences Inc.	756,277	$7,555,207
7	AXSM	Axsome Therapeutics, Inc.	23,450	$5,739,856
8	NGNE	Neurogene Inc.	146,905	$4,620,162

12 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$52,661	11,325	+12.8%	Shares	Sole	2026-08-11
2026-03-31	$53,999	10,037	-3.9%	Shares	Sole	2026-05-08
2023-09-30	$31,332	10,444	-0.0%	Shares	Sole	2023-11-09
2023-06-30	$39,079	10,449	-0.0%	Shares	Sole	2023-08-11
2023-03-31	$35,020	10,454	-0.0%	Shares	Sole	2023-05-12
2022-12-31	$50,302	10,458	-27.6%	Shares	Sole	2023-02-10
2022-06-30	$102,516	14,439	-50.0%	Shares	Sole	2022-08-10
2021-12-31	$258,088	28,869	-65.1%	Shares	Sole	2022-02-14
2021-09-30	$2,903,423	82,813	+225.8%	Shares	Sole	2021-11-12
2021-06-30	$545,978	25,418	+183.1%	Shares	Sole	2021-08-12
2021-03-31	$554,515	8,980	+68.5%	Shares	Sole	2021-05-13
2020-12-31	$222,687	5,330	—	Shares	Sole	2021-02-09
No filing history on record for this holder in this stock.