Altimmune, Inc.
ALT- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001326190
In the last 90 days, Altimmune, Inc. insiders filed 1 open-market purchase and 0 sales; 210 institutions reported holding it in 13F filings for Q2 2026, worth $456.1M in total; Viking Global Investors is the only superinvestor holding it.
13F holders, Q3 2023
Institutional positions in Altimmune, Inc. as of Sep 30, 2023. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 113
- −6 vs. Q2 2023
- Shares held
- 30.3M
- −4.88M (−13.9%) vs. Q2 2023
- Total value
- $79.2M
- −$45.0M (−36.3%) vs. Q2 2023
- New holders
- 16
- 27 more added
- Sold out
- 22
- 40 more reduced
1 institution that held it in Q2 2023 haven't filed for Q3 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2023: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting ALT on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 210 | $456.1M |
| Q1 2026 | 173 | $213.5M |
| Q4 2025 | 183 | $198.8M |
| Q3 2025 | 159 | $156.4M |
| Q2 2025 | 180 | $145.5M |
| Q1 2025 | 177 | $191.2M |
| Q4 2024 | 183 | $292.3M |
| Q3 2024 | 169 | $243.0M |
| Q2 2024 | 173 | $282.1M |
| Q1 2024 | 171 | $452.2M |
| Q4 2023 | 143 | $377.1M |
| Q3 2023 | 113 | $79.2M |
| Q2 2023 | 120 | $124.5M |
| Q1 2023 | 133 | $205.4M |
| Q4 2022 | 128 | $769.9M |
| Q3 2022 | 122 | $588.1M |
| Q2 2022 | 111 | $466.9M |
| Q1 2022 | 103 | $207.4M |
| Q4 2021 | 102 | $295.8M |
| Q3 2021 | 119 | $375.3M |
| Q2 2021 | 109 | $269.2M |
| Q1 2021 | 98 | $336.5M |
Institutions, Q3 2023
Shares, value and share of portfolio for each institution holding Altimmune, Inc.; share changes are against Q2 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| D. E. Shaw & Co., Inc. | 730,732 | $1.90M | 0.00% | +226,494+44.9% | Added |
| Laurion Capital Management LP | 809,685 | $2.11M | 0.06% | −1,029,919−56.0% | Reduced |
| State Street Corp | 870,881 | $2.26M | 0.00% | +66,808+8.3% | Added |
| Two Sigma Advisers, LP | 937,000 | $2.44M | 0.01% | −20,800−2.2% | Reduced |
| Balyasny Asset Management LLC | 947,578 | $2.46M | 0.01% | +248,051+35.5% | Added |
| Ardsley Advisory Partners LP | 992,050 | $2.58M | 0.70% | −50,000−4.8% | Reduced |
| Geode Capital Management, LLC | 1,053,336 | $2.74M | 0.00% | +83,475+8.6% | Added |
| Avidity Partners Management LP | 1,159,900 | $3.02M | 0.12% | −14,200−1.2% | Reduced |
| Marshall Wace, LLP | 1,798,740 | $4.68M | 0.01% | −260,550−12.7% | Reduced |
| Tang Capital Management LLC | 2,750,000 | $7.15M | 1.01% | 00.0% | Unchanged |
| Vanguard Group Inc | 3,344,295 | $8.70M | 0.00% | +38,323+1.2% | Added |
| Nuveen Asset Management, LLC | 3,446,778 | $8.96M | 0.00% | −12,171−0.4% | Reduced |
| BlackRock Inc. | 3,786,916 | $9.85M | 0.00% | +122,642+3.3% | Added |
| Sphera Funds Management Ltd. | 0 | $0 | 0.00% | −500,000−100.0% | Sold out |
| Walleye Capital LLC | 0 | $0 | 0.00% | −419,783−100.0% | Sold out |
| Rock Springs Capital Management LP | 0 | $0 | 0.00% | −223,255−100.0% | Sold out |
| Knoll Capital Management, LLC | 0 | $0 | 0.00% | −173,864−100.0% | Sold out |
| Squarepoint Ops LLC | 0 | $0 | 0.00% | −139,911−100.0% | Sold out |
| Schonfeld Strategic Advisors LLC | 0 | $0 | 0.00% | −68,100−100.0% | Sold out |
| Dana Investment Advisors, Inc. | 0 | $0 | 0.00% | −58,740−100.0% | Sold out |
| Envestnet Asset Management Inc | 0 | $0 | 0.00% | −30,986−100.0% | Sold out |
| Bayesian Capital Management, LP | 0 | $0 | 0.00% | −30,175−100.0% | Sold out |
| UBS Asset Management Americas Inc | 0 | $0 | 0.00% | −19,200−100.0% | Sold out |
| Tudor Investment Corp Et Al | 0 | $0 | 0.00% | −22,501−100.0% | Sold out |
| Jump Financial, LLC | 0 | $0 | 0.00% | −21,249−100.0% | Sold out |
| Delphia (USA) Inc. | 0 | $0 | 0.00% | −21,205−100.0% | Sold out |
| Allspring Global Investments Holdings, LLC | 0 | $0 | 0.00% | −19,842−100.0% | Sold out |
| State of Wisconsin Investment Board | 0 | $0 | 0.00% | −18,000−100.0% | Sold out |
| State Board of Administration of Florida Retirement System | 0 | $0 | 0.00% | −14,030−100.0% | Sold out |
| Point72 Middle East FZE | 0 | $0 | 0.00% | −12,097−100.0% | Sold out |
| Pitcairn Co | 0 | $0 | 0.00% | −11,960−100.0% | Sold out |
| Aigen Investment Management, LP | 0 | $0 | 0.00% | −11,712−100.0% | Sold out |
| Wolverine Trading, LLC | 0 | $0 | 0.00% | −10,553−100.0% | Sold out |
| Umb Bank N A | 0 | $0 | 0.00% | −2,368−100.0% | Sold out |
| Sofos Investments, Inc. | 0 | $0 | 0.00% | −4−100.0% | Sold out |
| Tekla Capital Management LLC | – | – | – | – | Not filed |