BOSTON, MA
ATEA PHARMACEUTICALS, INC.AVIR— Latest position per institution from SEC 13F filings
15
Institutional holders
69.69M
Total shares held
288.80M
Estimated value
3.48M
Avg. position size
FMR LLC
CIK 315066
Shares
12M
Value
55.82M
Filed
Jun 30, 2026
BLACKROCK FINANCE, INC.
CIK 1364742
Shares
9.12M
Value
30.19M
Filed
Jun 30, 2024
BLACKROCK, INC.
CIK 2012383
Shares
8.72M
Value
40.55M
Filed
Jun 30, 2026
BML CAPITAL MANAGEMENT, LLC
CIK 1616824
Shares
6.95M
Value
32.33M
Filed
Jun 30, 2026
TANG CAPITAL MANAGEMENT LLC
CIK 1232621
Shares
4.81M
Value
22.39M
Filed
Jun 30, 2026
VANGUARD GROUP INC
CIK 102909
Shares
4.23M
Value
15.09M
Filed
Dec 31, 2025
ECOR1 CAPITAL, LLC
CIK 1587114
Shares
3.34M
Value
11.19M
Filed
Dec 31, 2024
VANGUARD CAPITAL MANAGEMENT LLC
CIK 2100119
Shares
2.96M
Value
13.79M
Filed
Jun 30, 2026
BAIN CAPITAL LIFE SCIENCES INVESTORS, LLC
CIK 1703031
Shares
2.08M
Value
9.65M
Filed
Jun 30, 2026
ACADIAN ASSET MANAGEMENT LLC
CIK 916542
Shares
2.04M
Value
9.46K
Filed
Jun 30, 2026
GEODE CAPITAL MANAGEMENT, LLC
CIK 1214717
Shares
1.96M
Value
9.11M
Filed
Jun 30, 2026
STATE STREET CORP
CIK 93751
Shares
1.65M
Value
7.68M
Filed
Jun 30, 2026
CORMORANT ASSET MANAGEMENT, LP
CIK 1583977
Shares
1.55M
Value
5.79M
Filed
Jun 30, 2023
TWO SIGMA INVESTMENTS, LP
CIK 1179392
Shares
1.51M
Value
7.01M
Filed
Jun 30, 2026
DIMENSIONAL FUND ADVISORS LP
CIK 354204
Shares
1.30M
Value
6.04M
Filed
Jun 30, 2026
TYRUS CAPITAL S.A.M.
CIK 1543065
Shares
1.26M
Value
3.78M
Filed
Sep 30, 2023
RENAISSANCE TECHNOLOGIES LLC
CIK 1037389
Shares
1.13M
Value
5.26M
Filed
Jun 30, 2026
ROSALIND ADVISORS, INC.
CIK 1622627
Shares
1.07M
Value
4.98M
Filed
Jun 30, 2026
TWO SIGMA ADVISERS, LP
CIK 1478735
Shares
1.06M
Value
3.78M
Filed
Dec 31, 2025
JPMORGAN CHASE & CO
CIK 19617
Shares
945.92K
Value
4.36M
Filed
Jun 30, 2026
| # | Institution | CIK | Shares | Est. Value | Period |
|---|---|---|---|---|---|
| 1 | FMR LLC | 315066 | 12M | 55.82M | Jun 30, 2026 |
| 2 | BLACKROCK FINANCE, INC. | 1364742 | 9.12M | 30.19M | Jun 30, 2024 |
| 3 | BLACKROCK, INC. | 2012383 | 8.72M | 40.55M | Jun 30, 2026 |
| 4 | BML CAPITAL MANAGEMENT, LLC | 1616824 | 6.95M | 32.33M | Jun 30, 2026 |
| 5 | TANG CAPITAL MANAGEMENT LLC | 1232621 | 4.81M | 22.39M | Jun 30, 2026 |
| 6 | VANGUARD GROUP INC | 102909 | 4.23M | 15.09M | Dec 31, 2025 |
| 7 | ECOR1 CAPITAL, LLC | 1587114 | 3.34M | 11.19M | Dec 31, 2024 |
| 8 | VANGUARD CAPITAL MANAGEMENT LLC | 2100119 | 2.96M | 13.79M | Jun 30, 2026 |
| 9 | BAIN CAPITAL LIFE SCIENCES INVESTORS, LLC | 1703031 | 2.08M | 9.65M | Jun 30, 2026 |
| 10 | ACADIAN ASSET MANAGEMENT LLC | 916542 | 2.04M | 9.46K | Jun 30, 2026 |
| 11 | GEODE CAPITAL MANAGEMENT, LLC | 1214717 | 1.96M | 9.11M | Jun 30, 2026 |
| 12 | STATE STREET CORP | 93751 | 1.65M | 7.68M | Jun 30, 2026 |
| 13 | CORMORANT ASSET MANAGEMENT, LP | 1583977 | 1.55M | 5.79M | Jun 30, 2023 |
| 14 | TWO SIGMA INVESTMENTS, LP | 1179392 | 1.51M | 7.01M | Jun 30, 2026 |
| 15 | DIMENSIONAL FUND ADVISORS LP | 354204 | 1.30M | 6.04M | Jun 30, 2026 |
| 16 | TYRUS CAPITAL S.A.M. | 1543065 | 1.26M | 3.78M | Sep 30, 2023 |
| 17 | RENAISSANCE TECHNOLOGIES LLC | 1037389 | 1.13M | 5.26M | Jun 30, 2026 |
| 18 | ROSALIND ADVISORS, INC. | 1622627 | 1.07M | 4.98M | Jun 30, 2026 |
| 19 | TWO SIGMA ADVISERS, LP | 1478735 | 1.06M | 3.78M | Dec 31, 2025 |
| 20 | JPMORGAN CHASE & CO | 19617 | 945.92K | 4.36M | Jun 30, 2026 |
Data sourced from SEC Form 13F institutional holdings reports. Positions reflect the most recent filing per institution.