Security Snapshot

Atea Pharmaceuticals, Inc. - COMMON STOCK (AVIR) Institutional Ownership

CUSIP: 04683R106

13F Institutional Holders and Ownership History from Q4 2020 to Q1 2026

Latest Period

Q1 2026

Institutions Reporting

127

Shares (Excl. Options)

60,096,375

Price

$5.38

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Latest holder snapshot 5 signals
Portfolio coverage rank
0%
Share change
+2,875,170
Value change
+$18,119,687
Number of holders
127
Issuer context Names, identifiers, and filing context for this profile. 3 identity fields
Shares outstanding
79,671,812
SEC-reported price per share
$5.61
Insider filing price
$5.61
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors

Key facts

  • AVIR - Atea Pharmaceuticals, Inc. - COMMON STOCK is tracked under CUSIP 04683R106.
  • 127 institutions reported positions in Q1 2026.
  • 6 significant owners is listed from Schedule 13D/13G reporting.

Change

  • Holder count moved from 111 to 127 between Q4 2025 and Q1 2026.
  • SEC-reported value moved from $203,464,380 to $322,768,077.

Research use

  • You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
  • 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.

Evidence

Source: SEC Form 13F

Latest holder context comes from 127 institutions filings for Q1 2026.

Open SEC evidence

Security key

04683R106

Latest holder period

Q1 2026

13F holders

127

13D/G owners

6

CIK / CUSIP context first

13D/G owners

Significant owners

Large-stake holder rows connected to Schedule 13D/G evidence.

Rows
6
Security
AVIR
Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
FMR LLC 15% +28% $68,238,907 +$16,302,575 11,950,772 +31% FMR LLC 31 Mar 2026
Sommadossi Jean-Pierre 10% $26,185,536 8,876,453 Jean-Pierre Sommadossi 31 Mar 2025
BML Investment Partners, L.P. 9.9% +16% $27,881,700 +$2,119,466 7,810,000 +8.2% Leonard Braden Michael 31 Dec 2025
BlackRock, Inc. 7.1% $17,942,932 6,082,350 BlackRock, Inc. 31 Mar 2025
Radoff Bradley Louis 4% +10% $9,971,295 +$811,250 3,380,100 +8.9% Radoff Bradley Louis 16 Apr 2025
EcoR1 Capital, LLC 4% $9,857,876 3,341,653 EcoR1 Capital, LLC 31 Dec 2024

As of 31 Mar 2026, 127 institutional investors reported holding 60,096,375 shares of Atea Pharmaceuticals, Inc. - COMMON STOCK (AVIR). This represents 75% of the company’s total 79,671,812 outstanding shares.

13F concentration

Top 25 institutional shareholders

Largest 13F positions for this security by reported shares and value.

Top holder share
69%
Institution Ownership % Shares Held Share Change % Portfolio % Holdings Value
FMR LLC 15% 11,950,772 +23% 0% $64,295,153
BlackRock, Inc. 11% 8,435,437 -0.66% 0% $45,382,652
BML Capital Management, LLC 8.9% 7,058,657 -5.8% 24% $37,975,575
TANG CAPITAL MANAGEMENT LLC 6% 4,814,700 0% 1.3% $25,903,086
VANGUARD CAPITAL MANAGEMENT LLC 4.1% 3,246,124 0% 0% $17,464,147
Bain Capital Life Sciences Investors, LLC 3% 2,360,638 -5% 1.1% $12,700,232
TWO SIGMA INVESTMENTS, LP 2.3% 1,864,164 +150% 0.01% $10,029,202
GEODE CAPITAL MANAGEMENT, LLC 2.2% 1,747,706 -5.1% 0% $9,405,012
STATE STREET CORP 2.1% 1,694,635 -5% 0% $9,117,136
ACADIAN ASSET MANAGEMENT LLC 2% 1,582,817 +21% 0.01% $8,508,000
DIMENSIONAL FUND ADVISORS LP 1.6% 1,255,484 -8.6% 0% $6,752,650
Rosalind Advisors, Inc. 1.5% 1,171,855 2.6% $6,304,580
RENAISSANCE TECHNOLOGIES LLC 1.5% 1,166,400 -1.9% 0.01% $6,275,232
JPMORGAN CHASE & CO 1.2% 940,157 -30% 0% $4,775,998
MORGAN STANLEY 0.92% 731,019 +11% 0% $3,932,882
CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.75% 596,709 -1.8% 0% $3,210,294
GOLDMAN SACHS GROUP INC 0.74% 588,463 +25% 0% $3,165,931
NORTHERN TRUST CORP 0.73% 585,025 +4.4% 0% $3,147,435
VANGUARD PORTFOLIO MANAGEMENT LLC 0.7% 557,579 0% 0% $2,999,775
VANGUARD FIDUCIARY TRUST CO 0.61% 484,705 0% 0% $2,607,713
JANE STREET GROUP, LLC 0.53% 418,296 +67% 0% $2,250,432
D. E. Shaw & Co., Inc. 0.48% 379,314 -18% 0% $2,040,710
CM Management, LLC 0.45% 355,000 0% 1.6% $1,909,900
MILLENNIUM MANAGEMENT LLC 0.44% 349,932 -50% 0% $1,882,634
BANQUE PICTET & CIE SA 0.43% 345,077 0% 0.02% $1,856,514

Quarter history

Institutional holders across reporting periods

Holder count, reported shares/value, and median price by quarter.

Periods
22
Latest
Q1 2026
Rows shown
1-22 of 22
Period 13F Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2026 Q1 60,096,375 $322,768,077 +$18,119,687 $5.38 127
2025 Q4 57,001,968 $203,464,380 +$14,036,645 $3.57 111
2025 Q3 53,140,830 $154,099,223 +$874,820 $2.90 112
2025 Q2 52,688,325 $189,687,193 -$496,611 $3.60 105
2025 Q1 52,943,893 $158,295,789 -$11,408,006 $2.99 102
2024 Q4 56,328,149 $188,651,399 -$6,772,701 $3.35 103
2024 Q3 57,907,511 $193,998,567 +$4,533,749 $3.35 105
2024 Q2 56,687,549 $187,637,646 +$7,123,002 $3.31 101
2024 Q1 54,332,807 $219,504,800 -$1,664,806 $4.04 112
2023 Q4 55,088,379 $168,248,591 -$1,691,841 $3.05 106
2023 Q3 56,849,245 $170,555,234 -$2,209,314 $3.00 117
2023 Q2 57,041,241 $213,289,848 +$971,494 $3.74 131
2023 Q1 56,778,720 $190,176,002 -$5,878,803 $3.35 128
2022 Q4 57,878,556 $278,395,526 -$5,016,357 $4.81 130
2022 Q3 57,466,718 $326,999,436 -$1,731,457 $5.69 115
2022 Q2 57,566,762 $408,727,109 +$19,469,875 $7.10 122
2022 Q1 54,946,542 $396,539,427 +$6,369,699 $7.22 121
2021 Q4 53,581,427 $478,985,081 -$368,375,568 $8.94 134
2021 Q3 56,840,788 $1,992,582,650 -$21,707,203 $35.06 137
2021 Q2 58,896,806 $1,265,508,812 +$160,923,836 $21.48 100
2021 Q1 47,389,412 $2,914,493,173 +$30,510,569 $61.75 78
2020 Q4 49,910,976 $2,070,766,859 +$1,819,869,860 $41.78 69
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