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, Q4 2023
Institutional positions in Altimmune, Inc. as of Dec 31, 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
- 143
- +30 vs. Q3 2023
- Shares held
- 33.5M
- +3.21M (+10.6%) vs. Q3 2023
- Total value
- $377.1M
- +$297.9M (+376.2%) vs. Q3 2023
- New holders
- 56
- 41 more added
- Sold out
- 26
- 24 more reduced
Compare with Q3 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, Q4 2023
Shares, value and share of portfolio for each institution holding Altimmune, Inc.; share changes are against Q3 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Ameriprise Financial Inc | 4,183,682 | $47.1M | 0.01% | +4,172,791+38,314.1% | Added |
| BlackRock Inc. | 4,044,707 | $45.5M | 0.00% | +257,791+6.8% | Added |
| Vanguard Group Inc | 3,571,972 | $40.2M | 0.00% | +227,677+6.8% | Added |
| Tang Capital Management LLC | 2,750,000 | $30.9M | 2.86% | 00.0% | Unchanged |
| Nuveen Asset Management, LLC | 1,727,316 | $19.4M | 0.01% | −1,719,462−49.9% | Reduced |
| Point72 Asset Management, L.P. | 1,246,500 | $14.0M | 0.04% | +1,246,500 | New |
| Geode Capital Management, LLC | 1,193,528 | $13.4M | 0.00% | +140,192+13.3% | Added |
| Morgan Stanley | 1,040,901 | $11.7M | 0.00% | +556,843+115.0% | Added |
| State Street Corp | 1,014,546 | $11.4M | 0.00% | +143,665+16.5% | Added |
| Timelo Investment Management Inc. | 809,095 | $9.10M | 19.49% | +779,095+2,597.0% | Added |
| Invesco Ltd. | 746,181 | $8.39M | 0.00% | +713,152+2,159.2% | Added |
| Susquehanna International Group, LLP | 733,254 | $8.25M | 0.01% | +619,488+544.5% | Added |
| Jane Street Group, LLC | 580,444 | $6.53M | 0.01% | +521,495+884.7% | Added |
| Group One Trading, L.P. | 547,441 | $6.16M | 0.19% | +380,791+228.5% | Added |
| Goldman Sachs Group Inc | 524,250 | $5.90M | 0.00% | +401,767+328.0% | Added |
| Northern Trust Corp | 473,829 | $5.33M | 0.00% | +23,419+5.2% | Added |
| Jacobs Levy Equity Management, Inc | 432,341 | $4.86M | 0.02% | +432,341 | New |
| Lighthouse Investment Partners, LLC | 399,357 | $4.49M | 0.33% | +399,357 | New |
| Ardsley Advisory Partners LP | 341,000 | $3.82M | 0.82% | −651,050−65.6% | Reduced |
| Ensign Peak Advisors, Inc | 326,777 | $3.68M | 0.01% | 00.0% | Unchanged |
| Fred Alger Management, LLC | 326,658 | $3.67M | 0.02% | +326,658 | New |
| Kennedy Capital Management, Inc. | 304,650 | $3.43M | 0.07% | +304,650 | New |
| Beirne Wealth Consulting Services, LLC | 303,800 | $3.42M | 1.69% | +54,380+21.8% | Added |
| D. E. Shaw & Co., Inc. | 289,726 | $3.26M | 0.00% | −441,006−60.4% | Reduced |
| Dimensional Fund Advisors LP | 261,518 | $2.94M | 0.00% | +72,267+38.2% | Added |
| Gerber, LLC | 255,778 | $2.88M | 2.60% | +255,778 | New |
| Jefferies Financial Group Inc. | 216,000 | $2.43M | 0.04% | +216,000 | New |
| Gsa Capital Partners LLP | 209,462 | $2.36M | 0.20% | −236,406−53.0% | Reduced |
| Susquehanna Portfolio Strategies, LLC | 207,197 | $2.33M | 0.04% | +207,197 | New |
| Knoll Capital Management, LLC | 200,000 | $2.25M | 1.86% | +200,000 | New |
| Bank of New York Mellon Corp | 191,588 | $2.16M | 0.00% | +12,681+7.1% | Added |
| Millennium Management LLC | 174,141 | $1.96M | 0.00% | +76,908+79.1% | Added |
| Sectoral Asset Management Inc | 170,800 | $1.92M | 0.83% | +170,800 | New |
| Silverarc Capital Management, LLC | 150,000 | $1.69M | 0.52% | +150,000 | New |
| Cubist Systematic Strategies, LLC | 144,985 | $1.63M | 0.02% | +98,832+214.1% | Added |
| Charles Schwab Investment Management Inc | 142,705 | $1.61M | 0.00% | +9,310+7.0% | Added |
| Schonfeld Strategic Advisors LLC | 135,000 | $1.52M | 0.01% | +135,000 | New |
| IMC-Chicago, LLC | 131,738 | $1.48M | 0.05% | +131,738 | New |
| DCF Advisers, LLC | 115,225 | $1.30M | 0.88% | −4,750−4.0% | Reduced |
| Squarepoint Ops LLC | 112,773 | $1.27M | 0.01% | +112,773 | New |
| Gagnon Securities LLC | 111,342 | $1.25M | 0.30% | −180−0.2% | Reduced |
| Pennant Investors, LP | 109,800 | $1.24M | 0.38% | +109,800 | New |
| Quinn Opportunity Partners LLC | 105,000 | $1.18M | 0.14% | +105,000 | New |
| Silvercrest Asset Management Group LLC | 103,500 | $1.16M | 0.01% | 00.0% | Unchanged |
| Callodine Capital Management, LP | 100,000 | $1.13M | 0.30% | +100,000 | New |
| Royal Bank of Canada | 92,091 | $1.03M | 0.00% | +83,701+997.6% | Added |
| JPMorgan Chase & Co | 90,795 | $1.02M | 0.00% | +30,467+50.5% | Added |
| Marshall Wace, LLP | 86,132 | $969.0K | 0.00% | −1,712,608−95.2% | Reduced |
| Rhumbline Advisers | 81,414 | $915.9K | 0.00% | +4,051+5.2% | Added |
| Brown Wealth Management, LLC | 75,000 | $843.8K | 0.37% | +75,000 | New |
| Barclays PLC | 72,423 | $814.8K | 0.00% | −107,986−59.9% | Reduced |
| Simplex Trading, LLC | 65,131 | $732.0K | 0.02% | −3,867−5.6% | Reduced |
| Wolverine Trading, LLC | 63,357 | $712.8K | 0.01% | +63,357 | New |
| FMR LLC | 62,106 | $698.7K | 0.00% | −4,941−7.4% | Reduced |
| Skandinaviska Enskilda Banken AB (publ) | 62,002 | $697.8K | 0.00% | +62,002 | New |
| Bridgeway Capital Management, LLC | 61,700 | $694.1K | 0.01% | −70,000−53.2% | Reduced |
| Walleye Trading LLC | 61,600 | $693.0K | 0.01% | +41,600+208.0% | Added |
| Deutsche Bank AG | 60,886 | $685.0K | 0.00% | +30,458+100.1% | Added |
| Commonwealth Equity Services, LLC | 60,773 | $684.0K | 0.00% | +19,763+48.2% | Added |
| UBS Group AG | 58,260 | $655.4K | 0.00% | +34,004+140.2% | Added |
| EAM Investors, LLC | 56,716 | $638.1K | 0.11% | +56,716 | New |
| Alliancebernstein L.P. | 52,580 | $591.5K | 0.00% | +5,440+11.5% | Added |
| Cetera Advisors LLC | 50,823 | $571.8K | 0.01% | +50,823 | New |
| DekaBank Deutsche Girozentrale | 45,000 | $534.0K | 0.00% | +45,000 | New |
| Wells Fargo & Company | 45,211 | $508.6K | 0.00% | −96,440−68.1% | Reduced |
| Advisor Group Holdings, Inc. | 42,592 | $479.2K | 0.00% | +39,151+1,137.8% | Added |
| Amundi | 34,972 | $409.9K | 0.00% | +34,972 | New |
| American Century Companies Inc | 36,135 | $406.5K | 0.00% | +14,871+69.9% | Added |
| LPL Financial LLC | 34,442 | $387.5K | 0.00% | +34,442 | New |
| UBS Oconnor LLC | 34,298 | $385.9K | 0.01% | +34,298 | New |
| Farallon Capital Management, L.L.C. | 34,000 | $382.5K | 0.00% | +34,000 | New |
| MML Investors Services, LLC | 29,919 | $337.0K | 0.00% | +8,848+42.0% | Added |
| Atom Investors LP | 27,412 | $308.4K | 0.05% | +27,412 | New |
| Occudo Quantitative Strategies LP | 27,049 | $304.3K | 0.04% | +27,049 | New |
| Bank of America Corp | 26,977 | $303.5K | 0.00% | −33,522−55.4% | Reduced |
| MetLife Investment Management | 26,315 | $296.0K | 0.00% | 00.0% | Unchanged |
| American International Group, Inc. | 26,268 | $295.5K | 0.00% | +1,599+6.5% | Added |
| LMR Partners LLP | 25,000 | $281.3K | 0.01% | −19,508−43.8% | Reduced |
| Allied Investment Advisors, LLC | 24,350 | $273.9K | 0.07% | +24,350 | New |
| Walleye Capital LLC | 23,607 | $265.6K | 0.00% | +23,607 | New |
| SG Americas Securities, LLC | 23,525 | $265.0K | 0.00% | −19,561−45.4% | Reduced |
| Aviva PLC | 22,954 | $258.2K | 0.00% | 00.0% | Unchanged |
| New York State Common Retirement Fund | 21,396 | $240.7K | 0.00% | −3,224−13.1% | Reduced |
| Vontobel Holding Ltd. | 20,800 | $234.0K | 0.00% | +20,800 | New |
| Manufacturers Life Insurance Company, The | 20,569 | $231.4K | 0.00% | 00.0% | Unchanged |
| Voya Investment Management LLC | 20,504 | $230.7K | 0.00% | +875+4.5% | Added |
| Integrated Wealth Concepts LLC | 20,000 | $225.0K | 0.00% | +20,000 | New |
| Diametric Capital, LP | 18,169 | $204.4K | 0.12% | +18,169 | New |
| Miracle Mile Advisors, LLC | 17,000 | $191.3K | 0.01% | 00.0% | Unchanged |
| Belvedere Trading LLC | 16,755 | $188.5K | 0.02% | +16,755 | New |
| Connective Portfolio Management, LLC | 16,000 | $180.0K | 0.37% | +16,000 | New |
| Brinker Capital Investments, LLC | 14,895 | $169.7K | 0.00% | +14,895 | New |
| Orion Portfolio Solutions, LLC | 14,895 | $169.7K | 0.00% | +14,895 | New |
| Brave Asset Management Inc | 15,000 | $168.8K | 0.05% | 00.0% | Unchanged |
| EWG Elevate Inc. | 15,000 | $168.8K | 0.07% | +5,000+50.0% | Added |
| State Board of Administration of Florida Retirement System | 13,724 | $154.4K | 0.00% | +13,724 | New |
| Price T Rowe Associates Inc | 13,417 | $151.0K | 0.00% | +3,370+33.5% | Added |
| BNP Paribas Arbitrage, SA | 12,764 | $143.6K | 0.00% | +5,987+88.3% | Added |
| Arete Wealth Advisors, LLC | 12,200 | $137.3K | 0.01% | +12,200 | New |
| Creative Planning | 12,079 | $135.9K | 0.00% | +12,079 | New |