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, Q1 2024
Institutional positions in Altimmune, Inc. as of Mar 31, 2024. 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
- 171
- +29 vs. Q4 2023
- Shares held
- 44.4M
- +10.9M (+32.6%) vs. Q4 2023
- Total value
- $452.2M
- +$75.1M (+19.9%) vs. Q4 2023
- New holders
- 59
- 51 more added
- Sold out
- 30
- 38 more reduced
1 institution that held it in Q4 2023 haven't filed for Q1 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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, Q1 2024
Shares, value and share of portfolio for each institution holding Altimmune, Inc.; share changes are against Q4 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| LPL Financial LLC | 53,429 | $543.9K | 0.00% | +18,987+55.1% | Added |
| California State Teachers Retirement System | 53,730 | $547.0K | 0.00% | +45,032+517.7% | Added |
| UBS Oconnor LLC | 56,795 | $578.2K | 0.02% | +22,497+65.6% | Added |
| Wells Fargo & Company | 58,942 | $600.0K | 0.00% | +13,731+30.4% | Added |
| AQR Capital Management LLC | 60,694 | $617.9K | 0.00% | +60,694 | New |
| Skandinaviska Enskilda Banken AB (publ) | 62,002 | $630.6K | 0.00% | 00.0% | Unchanged |
| Cetera Investment Advisers | 65,336 | $665.1K | 0.00% | +65,336 | New |
| Advisor Group Holdings, Inc. | 67,235 | $684.4K | 0.00% | +24,643+57.9% | Added |
| Lighthouse Investment Partners, LLC | 70,923 | $722.0K | 0.04% | −328,434−82.2% | Reduced |
| Citadel Advisors LLC | 76,067 | $774.4K | 0.00% | +76,067 | New |
| American Century Companies Inc | 78,654 | $800.7K | 0.00% | +42,519+117.7% | Added |
| Commonwealth Equity Services, LLC | 79,945 | $814.0K | 0.00% | +19,172+31.5% | Added |
| ExodusPoint Capital Management, LP | 80,913 | $824.0K | 0.01% | +80,913 | New |
| Rhumbline Advisers | 85,412 | $869.5K | 0.00% | +3,998+4.9% | Added |
| Jump Financial, LLC | 86,188 | $877.4K | 0.02% | +75,528+708.5% | Added |
| JPMorgan Chase & Co | 88,437 | $900.3K | 0.00% | −2,358−2.6% | Reduced |
| Sectoral Asset Management Inc | 92,240 | $939.0K | 0.37% | −78,560−46.0% | Reduced |
| DCF Advisers, LLC | 96,225 | $979.6K | 0.59% | −19,000−16.5% | Reduced |
| Barclays PLC | 100,355 | $1.02M | 0.00% | +27,932+38.6% | Added |
| Schonfeld Strategic Advisors LLC | 101,426 | $1.03M | 0.01% | −33,574−24.9% | Reduced |
| Jane Street Group, LLC | 101,577 | $1.03M | 0.00% | −478,867−82.5% | Reduced |
| Silvercrest Asset Management Group LLC | 103,500 | $1.05M | 0.01% | 00.0% | Unchanged |
| Omers Administration Corp | 104,600 | $1.06M | 0.01% | +104,600 | New |
| Swiss National Bank | 106,000 | $1.08M | 0.00% | +106,000 | New |
| Pennant Investors, LP | 109,800 | $1.12M | 0.31% | 00.0% | Unchanged |
| Campbell & CO Investment Adviser LLC | 110,213 | $1.12M | 0.10% | +110,213 | New |
| Raymond James & Associates | 121,137 | $1.23M | 0.00% | +121,137 | New |
| Profund Advisors LLC | 134,842 | $1.37M | 0.05% | +134,842 | New |
| Charles Schwab Investment Management Inc | 142,705 | $1.45M | 0.00% | 00.0% | Unchanged |
| Simplex Trading, LLC | 146,259 | $1.49M | 0.04% | +81,128+124.6% | Added |
| Lynwood Capital Management Inc. | 150,000 | $1.53M | 9.05% | +150,000 | New |
| Wellington Management Group LLP | 156,914 | $1.60M | 0.00% | +156,914 | New |
| IMC-Chicago, LLC | 165,607 | $1.69M | 0.06% | +33,869+25.7% | Added |
| Bank of New York Mellon Corp | 189,654 | $1.93M | 0.00% | −1,934−1.0% | Reduced |
| Schroder Investment Management Group | 190,824 | $1.94M | 0.00% | +190,824 | New |
| Susquehanna Portfolio Strategies, LLC | 207,197 | $2.11M | 0.05% | 00.0% | Unchanged |
| Woodline Partners LP | 214,245 | $2.18M | 0.02% | +214,245 | New |
| Dimensional Fund Advisors LP | 234,730 | $2.39M | 0.00% | −26,788−10.2% | Reduced |
| Ghost Tree Capital, LLC | 250,000 | $2.54M | 0.82% | +250,000 | New |
| Beirne Wealth Consulting Services, LLC | 272,800 | $2.78M | 1.18% | −31,000−10.2% | Reduced |
| Ardsley Advisory Partners LP | 275,000 | $2.80M | 0.40% | −66,000−19.4% | Reduced |
| Gerber, LLC | 281,778 | $2.87M | 2.41% | +26,000+10.2% | Added |
| Voya Investment Management LLC | 288,273 | $2.93M | 0.00% | +267,769+1,305.9% | Added |
| Timelo Investment Management Inc. | 294,095 | $2.99M | 4.64% | −515,000−63.7% | Reduced |
| Moody Aldrich Partners LLC | 307,318 | $3.13M | 0.53% | +307,318 | New |
| Group One Trading, L.P. | 309,459 | $3.15M | 0.11% | −237,982−43.5% | Reduced |
| Ensign Peak Advisors, Inc | 326,777 | $3.33M | 0.01% | 00.0% | Unchanged |
| D. E. Shaw & Co., Inc. | 354,350 | $3.61M | 0.00% | +64,624+22.3% | Added |
| BBR Partners, LLC | 358,513 | $3.65M | 0.29% | +358,513 | New |
| Jacobs Levy Equity Management, Inc | 432,666 | $4.40M | 0.02% | +325+0.1% | Added |
| Farallon Capital Management, L.L.C. | 470,000 | $4.78M | 0.03% | +436,000+1,282.4% | Added |
| UBS Group AG | 490,001 | $4.99M | 0.00% | +431,741+741.1% | Added |
| Northern Trust Corp | 493,968 | $5.03M | 0.00% | +20,139+4.3% | Added |
| Bank of America Corp | 499,872 | $5.09M | 0.00% | +472,895+1,753.0% | Added |
| Knoll Capital Management, LLC | 567,219 | $5.77M | 3.59% | +367,219+183.6% | Added |
| Citigroup Inc | 742,913 | $7.56M | 0.01% | +735,336+9,704.8% | Added |
| Readystate Asset Management LP | 825,800 | $8.41M | 0.30% | +825,800 | New |
| Goldman Sachs Group Inc | 861,415 | $8.77M | 0.00% | +337,165+64.3% | Added |
| Rafferty Asset Management, LLC | 882,628 | $8.99M | 0.03% | +882,628 | New |
| Portolan Capital Management, LLC | 887,255 | $9.03M | 0.69% | +887,255 | New |
| Nuveen Asset Management, LLC | 913,000 | $9.29M | 0.00% | −814,316−47.1% | Reduced |
| Susquehanna International Group, LLP | 916,254 | $9.33M | 0.01% | +183,000+25.0% | Added |
| Fred Alger Management, LLC | 993,516 | $10.1M | 0.05% | +666,858+204.1% | Added |
| Geode Capital Management, LLC | 1,236,798 | $12.6M | 0.00% | +43,270+3.6% | Added |
| Millennium Management LLC | 1,590,150 | $16.2M | 0.01% | +1,416,009+813.1% | Added |
| Ameriprise Financial Inc | 1,709,304 | $17.4M | 0.00% | −2,474,378−59.1% | Reduced |
| Morgan Stanley | 2,211,948 | $22.5M | 0.00% | +1,171,047+112.5% | Added |
| Tang Capital Management LLC | 2,750,000 | $28.0M | 2.91% | 00.0% | Unchanged |
| Vanguard Group Inc | 3,128,728 | $31.9M | 0.00% | −443,244−12.4% | Reduced |
| BlackRock Inc. | 4,042,226 | $41.1M | 0.00% | −2,481−0.1% | Reduced |
| State Street Corp | 8,649,270 | $88.0M | 0.00% | +7,634,724+752.5% | Added |
| Kennedy Capital Management, Inc. | 0 | $0 | 0.00% | −304,650−100.0% | Sold out |
| Jefferies Financial Group Inc. | 0 | $0 | 0.00% | −216,000−100.0% | Sold out |
| Silverarc Capital Management, LLC | 0 | $0 | 0.00% | −150,000−100.0% | Sold out |
| Gagnon Securities LLC | 0 | $0 | 0.00% | −111,342−100.0% | Sold out |
| Quinn Opportunity Partners LLC | 0 | $0 | 0.00% | −105,000−100.0% | Sold out |
| Callodine Capital Management, LP | 0 | $0 | 0.00% | −100,000−100.0% | Sold out |
| Marshall Wace, LLP | 0 | $0 | 0.00% | −86,132−100.0% | Sold out |
| EAM Investors, LLC | 0 | $0 | 0.00% | −56,716−100.0% | Sold out |
| Cetera Advisors LLC | 0 | $0 | 0.00% | −50,823−100.0% | Sold out |
| DekaBank Deutsche Girozentrale | 0 | $0 | 0.00% | −45,000−100.0% | Sold out |
| Amundi | 0 | $0 | 0.00% | −34,972−100.0% | Sold out |
| Atom Investors LP | 0 | $0 | 0.00% | −27,412−100.0% | Sold out |
| Occudo Quantitative Strategies LP | 0 | $0 | 0.00% | −27,049−100.0% | Sold out |
| LMR Partners LLP | 0 | $0 | 0.00% | −25,000−100.0% | Sold out |
| Allied Investment Advisors, LLC | 0 | $0 | 0.00% | −24,350−100.0% | Sold out |
| Vontobel Holding Ltd. | 0 | $0 | 0.00% | −20,800−100.0% | Sold out |
| Diametric Capital, LP | 0 | $0 | 0.00% | −18,169−100.0% | Sold out |
| Belvedere Trading LLC | 0 | $0 | 0.00% | −16,755−100.0% | Sold out |
| Connective Portfolio Management, LLC | 0 | $0 | 0.00% | −16,000−100.0% | Sold out |
| State Board of Administration of Florida Retirement System | 0 | $0 | 0.00% | −13,724−100.0% | Sold out |
| Arete Wealth Advisors, LLC | 0 | $0 | 0.00% | −12,200−100.0% | Sold out |
| Keudell/Morrison Wealth Management | 0 | $0 | 0.00% | −10,940−100.0% | Sold out |
| Horizon Wealth Management, LLC | 0 | $0 | 0.00% | −10,000−100.0% | Sold out |
| Deuterium Capital Management, LLC | 0 | $0 | 0.00% | −10,000−100.0% | Sold out |
| FNY Investment Advisers, LLC | 0 | $0 | 0.00% | −3,171−100.0% | Sold out |
| Godsey & Gibb Associates | 0 | $0 | 0.00% | −611−100.0% | Sold out |
| Federated Hermes, Inc. | 0 | $0 | 0.00% | −121−100.0% | Sold out |
| Harbour Investments, Inc. | 0 | $0 | 0.00% | −100−100.0% | Sold out |
| Whittier Trust Co | 0 | $0 | 0.00% | −24−100.0% | Sold out |