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AVIR · Atea Pharmaceuticals, Inc.

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$5.36 -0.07 (-1.29%)
Market Cap
$435.51M
Shares
80.20M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 124
Total Value: $276,419,825
Total Shares: 59,445,140

Institutional Ownership Trend

23 quarters

Holder Concentration

Across 124 13F filers · Δ vs Mar 31, 2026
Top Holder
20.2%
Sep 2023 → Jun 2026 · range 14.4% – 20.2%
+0.3 pts
Top 5
59.6%
Sep 2023 → Jun 2026 · range 54.5% – 60.9%
+0.7 pts
Top 10
75.2%
Sep 2023 → Jun 2026 · range 73.8% – 78.5%
+0.8 pts
HHI
924
Sep 2023 → Jun 2026 · range 732 – 924
Broadly held+30

Quarterly Activity

vs Mar 31, 2026
New
19
Increased
46
Decreased
37
Sold Out
22
Unchanged
22
Holder count: -3
Institutional value: -14.6%
Shares held: -1.2%

Top Buyers

vs Mar 31, 2026
Institution Added Now Holds Open

Top Sellers

vs Mar 31, 2026
Institution Sold Now Holds Open

Top New Positions

vs Mar 31, 2026
Institution Acquired Value (USD) Open

Top Sold-Out Positions

vs Mar 31, 2026
Institution Previously Held Last Value (USD) Open
Showing 100 of 125
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 1593899 CUSIP 04683R106 13F (30d) 105 filings 105 filers Visit website Investor relations