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 |
|---|---|---|---|---|---|
| State Street Corp | 8,649,270 | $88.0M | 0.00% | +7,634,724+752.5% | Added |
| BlackRock Inc. | 4,042,226 | $41.1M | 0.00% | −2,481−0.1% | Reduced |
| Vanguard Group Inc | 3,128,728 | $31.9M | 0.00% | −443,244−12.4% | Reduced |
| Tang Capital Management LLC | 2,750,000 | $28.0M | 2.91% | 00.0% | Unchanged |
| Morgan Stanley | 2,211,948 | $22.5M | 0.00% | +1,171,047+112.5% | Added |
| Ameriprise Financial Inc | 1,709,304 | $17.4M | 0.00% | −2,474,378−59.1% | Reduced |
| Millennium Management LLC | 1,590,150 | $16.2M | 0.01% | +1,416,009+813.1% | Added |
| Geode Capital Management, LLC | 1,236,798 | $12.6M | 0.00% | +43,270+3.6% | Added |
| Fred Alger Management, LLC | 993,516 | $10.1M | 0.05% | +666,858+204.1% | Added |
| Susquehanna International Group, LLP | 916,254 | $9.33M | 0.01% | +183,000+25.0% | Added |
| Nuveen Asset Management, LLC | 913,000 | $9.29M | 0.00% | −814,316−47.1% | Reduced |
| Portolan Capital Management, LLC | 887,255 | $9.03M | 0.69% | +887,255 | New |
| Rafferty Asset Management, LLC | 882,628 | $8.99M | 0.03% | +882,628 | New |
| Goldman Sachs Group Inc | 861,415 | $8.77M | 0.00% | +337,165+64.3% | Added |
| Readystate Asset Management LP | 825,800 | $8.41M | 0.30% | +825,800 | New |
| Citigroup Inc | 742,913 | $7.56M | 0.01% | +735,336+9,704.8% | Added |
| Knoll Capital Management, LLC | 567,219 | $5.77M | 3.59% | +367,219+183.6% | Added |
| Bank of America Corp | 499,872 | $5.09M | 0.00% | +472,895+1,753.0% | Added |
| Northern Trust Corp | 493,968 | $5.03M | 0.00% | +20,139+4.3% | Added |
| UBS Group AG | 490,001 | $4.99M | 0.00% | +431,741+741.1% | Added |
| Farallon Capital Management, L.L.C. | 470,000 | $4.78M | 0.03% | +436,000+1,282.4% | Added |
| Jacobs Levy Equity Management, Inc | 432,666 | $4.40M | 0.02% | +325+0.1% | Added |
| BBR Partners, LLC | 358,513 | $3.65M | 0.29% | +358,513 | New |
| D. E. Shaw & Co., Inc. | 354,350 | $3.61M | 0.00% | +64,624+22.3% | Added |
| Ensign Peak Advisors, Inc | 326,777 | $3.33M | 0.01% | 00.0% | Unchanged |
| Group One Trading, L.P. | 309,459 | $3.15M | 0.11% | −237,982−43.5% | Reduced |
| Moody Aldrich Partners LLC | 307,318 | $3.13M | 0.53% | +307,318 | New |
| Timelo Investment Management Inc. | 294,095 | $2.99M | 4.64% | −515,000−63.7% | Reduced |
| Voya Investment Management LLC | 288,273 | $2.93M | 0.00% | +267,769+1,305.9% | Added |
| Gerber, LLC | 281,778 | $2.87M | 2.41% | +26,000+10.2% | Added |
| Ardsley Advisory Partners LP | 275,000 | $2.80M | 0.40% | −66,000−19.4% | Reduced |
| Beirne Wealth Consulting Services, LLC | 272,800 | $2.78M | 1.18% | −31,000−10.2% | Reduced |
| Ghost Tree Capital, LLC | 250,000 | $2.54M | 0.82% | +250,000 | New |
| Dimensional Fund Advisors LP | 234,730 | $2.39M | 0.00% | −26,788−10.2% | Reduced |
| Woodline Partners LP | 214,245 | $2.18M | 0.02% | +214,245 | New |
| Susquehanna Portfolio Strategies, LLC | 207,197 | $2.11M | 0.05% | 00.0% | Unchanged |
| Schroder Investment Management Group | 190,824 | $1.94M | 0.00% | +190,824 | New |
| Bank of New York Mellon Corp | 189,654 | $1.93M | 0.00% | −1,934−1.0% | Reduced |
| IMC-Chicago, LLC | 165,607 | $1.69M | 0.06% | +33,869+25.7% | Added |
| Wellington Management Group LLP | 156,914 | $1.60M | 0.00% | +156,914 | New |
| Lynwood Capital Management Inc. | 150,000 | $1.53M | 9.05% | +150,000 | New |
| Simplex Trading, LLC | 146,259 | $1.49M | 0.04% | +81,128+124.6% | Added |
| Charles Schwab Investment Management Inc | 142,705 | $1.45M | 0.00% | 00.0% | Unchanged |
| Profund Advisors LLC | 134,842 | $1.37M | 0.05% | +134,842 | New |
| Raymond James & Associates | 121,137 | $1.23M | 0.00% | +121,137 | New |
| Campbell & CO Investment Adviser LLC | 110,213 | $1.12M | 0.10% | +110,213 | New |
| Pennant Investors, LP | 109,800 | $1.12M | 0.31% | 00.0% | Unchanged |
| Swiss National Bank | 106,000 | $1.08M | 0.00% | +106,000 | New |
| Omers Administration Corp | 104,600 | $1.06M | 0.01% | +104,600 | New |
| Silvercrest Asset Management Group LLC | 103,500 | $1.05M | 0.01% | 00.0% | Unchanged |
| Jane Street Group, LLC | 101,577 | $1.03M | 0.00% | −478,867−82.5% | Reduced |
| Schonfeld Strategic Advisors LLC | 101,426 | $1.03M | 0.01% | −33,574−24.9% | Reduced |
| Barclays PLC | 100,355 | $1.02M | 0.00% | +27,932+38.6% | Added |
| DCF Advisers, LLC | 96,225 | $979.6K | 0.59% | −19,000−16.5% | Reduced |
| Sectoral Asset Management Inc | 92,240 | $939.0K | 0.37% | −78,560−46.0% | Reduced |
| JPMorgan Chase & Co | 88,437 | $900.3K | 0.00% | −2,358−2.6% | Reduced |
| Jump Financial, LLC | 86,188 | $877.4K | 0.02% | +75,528+708.5% | Added |
| Rhumbline Advisers | 85,412 | $869.5K | 0.00% | +3,998+4.9% | Added |
| ExodusPoint Capital Management, LP | 80,913 | $824.0K | 0.01% | +80,913 | New |
| Commonwealth Equity Services, LLC | 79,945 | $814.0K | 0.00% | +19,172+31.5% | Added |
| American Century Companies Inc | 78,654 | $800.7K | 0.00% | +42,519+117.7% | Added |
| Citadel Advisors LLC | 76,067 | $774.4K | 0.00% | +76,067 | New |
| Lighthouse Investment Partners, LLC | 70,923 | $722.0K | 0.04% | −328,434−82.2% | Reduced |
| Advisor Group Holdings, Inc. | 67,235 | $684.4K | 0.00% | +24,643+57.9% | Added |
| Cetera Investment Advisers | 65,336 | $665.1K | 0.00% | +65,336 | New |
| Skandinaviska Enskilda Banken AB (publ) | 62,002 | $630.6K | 0.00% | 00.0% | Unchanged |
| AQR Capital Management LLC | 60,694 | $617.9K | 0.00% | +60,694 | New |
| Wells Fargo & Company | 58,942 | $600.0K | 0.00% | +13,731+30.4% | Added |
| UBS Oconnor LLC | 56,795 | $578.2K | 0.02% | +22,497+65.6% | Added |
| California State Teachers Retirement System | 53,730 | $547.0K | 0.00% | +45,032+517.7% | Added |
| LPL Financial LLC | 53,429 | $543.9K | 0.00% | +18,987+55.1% | Added |
| Alliancebernstein L.P. | 52,030 | $529.7K | 0.00% | −550−1.0% | Reduced |
| Gsa Capital Partners LLP | 51,153 | $521.0K | 0.04% | −158,309−75.6% | Reduced |
| Brown Wealth Management, LLC | 50,000 | $509.0K | 0.21% | −25,000−33.3% | Reduced |
| SEI Investments Co | 47,079 | $479.3K | 0.00% | +47,079 | New |
| Legal & General Group Plc | 45,615 | $464.4K | 0.00% | +41,230+940.3% | Added |
| Credit Suisse AG | 44,599 | $454.9K | 0.00% | +44,599 | New |
| Macquarie Group Ltd | 44,474 | $453.0K | 0.00% | +44,474 | New |
| Deutsche Bank AG | 43,588 | $443.7K | 0.00% | −17,298−28.4% | Reduced |
| E Fund Management Co., Ltd. | 41,709 | $424.6K | 0.03% | +41,709 | New |
| GWM Advisors LLC | 41,450 | $422.0K | 0.00% | +31,450+314.5% | Added |
| Royal Bank of Canada | 39,875 | $406.0K | 0.00% | −52,216−56.7% | Reduced |
| State of Wisconsin Investment Board | 39,705 | $404.2K | 0.00% | +39,705 | New |
| SG Americas Securities, LLC | 39,603 | $403.0K | 0.00% | +16,078+68.3% | Added |
| MML Investors Services, LLC | 37,154 | $378.0K | 0.00% | +7,235+24.2% | Added |
| Envestnet Asset Management Inc | 36,533 | $371.9K | 0.00% | +36,533 | New |
| Danske Bank A/S | 36,370 | $370.2K | 0.00% | +36,370 | New |
| Glenmede Trust Co NA | 34,905 | $355.3K | 0.00% | +34,905 | New |
| Walleye Capital LLC | 34,813 | $354.4K | 0.00% | +11,206+47.5% | Added |
| Entropy Technologies, LP | 34,527 | $351.5K | 0.04% | +34,527 | New |
| Bridgeway Capital Management, LLC | 34,100 | $347.1K | 0.01% | −27,600−44.7% | Reduced |
| BNP Paribas Arbitrage, SA | 32,425 | $330.1K | 0.00% | +19,661+154.0% | Added |
| Wolverine Trading, LLC | 31,929 | $325.0K | 0.00% | −31,428−49.6% | Reduced |
| Marex Group plc | 30,000 | $305.4K | 0.01% | +30,000 | New |
| Invesco Ltd. | 27,757 | $282.6K | 0.00% | −718,424−96.3% | Reduced |
| Mirae Asset Global Investments Co., Ltd. | 26,666 | $271.5K | 0.00% | +26,666 | New |
| Advisory Services Network, LLC | 26,652 | $271.3K | 0.01% | +26,552+26,552.0% | Added |
| American International Group, Inc. | 26,560 | $270.4K | 0.00% | +292+1.1% | Added |
| MetLife Investment Management | 26,315 | $267.9K | 0.00% | 00.0% | Unchanged |
| Aviva PLC | 22,954 | $233.7K | 0.00% | 00.0% | Unchanged |