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 2025
Institutional positions in Altimmune, Inc. as of Sep 30, 2025. 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
- 159
- −18 vs. Q2 2025
- Shares held
- 41.5M
- +3.91M (+10.4%) vs. Q2 2025
- Total value
- $156.4M
- +$11.0M (+7.6%) vs. Q2 2025
- New holders
- 23
- 57 more added
- Sold out
- 41
- 48 more reduced
3 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2025: 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 2025
Shares, value and share of portfolio for each institution holding Altimmune, Inc.; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Huntington National Bank | 2 | $8 | 0.00% | 00.0% | Unchanged |
| First Horizon Corp | 3 | $11 | 0.00% | +3 | New |
| Bernard Wealth Management Corp. | 15 | $57 | 0.00% | 00.0% | Unchanged |
| Parallel Advisors, LLC | 40 | $151 | 0.00% | 00.0% | Unchanged |
| US Bancorp | 51 | $192 | 0.00% | −3,820−98.7% | Reduced |
| Rockefeller Capital Management L.P. | 54 | $204 | 0.00% | +54 | New |
| Farther Finance Advisors, LLC | 73 | $275 | 0.00% | +54+284.2% | Added |
| Federated Hermes, Inc. | 75 | $283 | 0.00% | −915,383−100.0% | Reduced |
| Nisa Investment Advisors, LLC | 95 | $358 | 0.00% | −281−74.7% | Reduced |
| Northwestern Mutual Wealth Management Co | 101 | $381 | 0.00% | −67−39.9% | Reduced |
| MAI Capital Management | 150 | $566 | 0.00% | +150 | New |
| Sterling Capital Management LLC | 197 | $743 | 0.00% | +10+5.3% | Added |
| IFP Advisors, Inc | 200 | $754 | 0.00% | 00.0% | Unchanged |
| Ameritas Advisory Services, LLC | 200 | $754 | 0.00% | 00.0% | Unchanged |
| Fifth Third Bancorp | 250 | $943 | 0.00% | 00.0% | Unchanged |
| Daiwa Securities Group Inc. | 235 | $1.00K | 0.00% | 00.0% | Unchanged |
| ZRC Wealth Management, LLC | 286 | $1.08K | 0.00% | 00.0% | Unchanged |
| Massmutual Trust Co FSB | 418 | $1.58K | 0.00% | +418 | New |
| Stone House Investment Management, LLC | 500 | $1.89K | 0.00% | 00.0% | Unchanged |
| Bessemer Group Inc | 660 | $2.00K | 0.00% | −43−6.1% | Reduced |
| Hollencrest Capital Management | 770 | $2.90K | 0.00% | 00.0% | Unchanged |
| Country Trust Bank | 1,000 | $3.77K | 0.00% | 00.0% | Unchanged |
| NBC Securities, Inc. | 1,000 | $3.77K | 0.00% | 00.0% | Unchanged |
| Global Retirement Partners, LLC | 1,000 | $3.77K | 0.00% | +1,000 | New |
| Groupe la Francaise | 1,200 | $3.87K | 0.00% | +1,200 | New |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 1,125 | $4.24K | 0.00% | −487−30.2% | Reduced |
| GF Fund Management Co. Ltd. | 1,899 | $7.16K | 0.00% | +78+4.3% | Added |
| Activest Wealth Management | 2,001 | $7.54K | 0.00% | 00.0% | Unchanged |
| Amalgamated Bank | 2,451 | $9.00K | 0.00% | 00.0% | Unchanged |
| CWM, LLC | 2,264 | $9.00K | 0.00% | +373+19.7% | Added |
| The PNC Financial Services Group, Inc. | 2,881 | $10.9K | 0.00% | +1,192+70.6% | Added |
| GWM Advisors LLC | 3,188 | $12.0K | 0.00% | −300−8.6% | Reduced |
| Mirae Asset Global Investments Co., Ltd. | 3,412 | $12.9K | 0.00% | +279+8.9% | Added |
| TD Waterhouse Canada Inc. | 3,500 | $13.6K | 0.00% | 00.0% | Unchanged |
| SRS Capital Advisors, Inc. | 4,089 | $15.4K | 0.00% | +2,447+149.0% | Added |
| FNY Investment Advisers, LLC | 5,000 | $18.0K | 0.01% | +5,000 | New |
| California State Teachers Retirement System | 4,844 | $18.3K | 0.00% | −302−5.9% | Reduced |
| HighTower Advisors, LLC | 4,909 | $18.5K | 0.00% | +2,456+100.1% | Added |
| Quarry LP | 5,019 | $18.9K | 0.00% | +1,019+25.5% | Added |
| Larson Financial Group LLC | 5,305 | $20.0K | 0.00% | +5+0.1% | Added |
| Point72 Europe (London) LLP | 5,484 | $20.7K | 0.00% | +5,484 | New |
| SBI Securities Co., Ltd. | 6,909 | $26.0K | 0.00% | −209−2.9% | Reduced |
| Ameritas Investment Partners, Inc. | 6,955 | $26.2K | 0.00% | 00.0% | Unchanged |
| Jones Financial Companies LLLP | 6,626 | $26.5K | 0.00% | 00.0% | Unchanged |
| North Star Investment Management Corp. | 8,000 | $30.2K | 0.00% | −9,000−52.9% | Reduced |
| Point72 (DIFC) Ltd | 8,143 | $30.7K | 0.00% | +8,143 | New |
| Legal & General Group Plc | 8,620 | $32.5K | 0.00% | 00.0% | Unchanged |
| Advisory Services Network, LLC | 8,960 | $33.8K | 0.00% | −7,127−44.3% | Reduced |
| Tower Research Capital LLC (TRC) | 9,421 | $35.5K | 0.00% | −5,535−37.0% | Reduced |
| Citigroup Inc | 9,774 | $36.8K | 0.00% | −58,407−85.7% | Reduced |
| Geneos Wealth Management Inc. | 10,000 | $37.7K | 0.00% | 00.0% | Unchanged |
| Victory Capital Management Inc | 10,061 | $37.9K | 0.00% | +10,061 | New |
| DCF Advisers, LLC | 10,770 | $40.6K | 0.02% | 00.0% | Unchanged |
| Sunbelt Securities, Inc. | 10,844 | $40.9K | 0.00% | 00.0% | Unchanged |
| Two Sigma Securities, LLC | 11,250 | $42.4K | 0.01% | −6,861−37.9% | Reduced |
| Sequoia Financial Advisors, LLC | 12,074 | $45.5K | 0.00% | +12,074 | New |
| Cambridge Investment Research Advisors, Inc. | 12,532 | $47.0K | 0.00% | −6,136−32.9% | Reduced |
| Voya Investment Management LLC | 13,690 | $51.6K | 0.00% | −7,148−34.3% | Reduced |
| Russell Investments Group, Ltd. | 13,929 | $52.5K | 0.00% | +9,249+197.6% | Added |
| Walleye Trading LLC | 14,759 | $55.6K | 0.00% | +14,759 | New |
| Kingswood Wealth Advisors, LLC | 15,400 | $58.1K | 0.00% | +5,000+48.1% | Added |
| China Universal Asset Management Co., Ltd. | 15,470 | $58.3K | 0.00% | −820−5.0% | Reduced |
| Walleye Capital LLC | 15,518 | $58.5K | 0.00% | +15,518 | New |
| Sherbrooke Park Advisers LLC | 15,904 | $60.0K | 0.03% | +15,904 | New |
| Virtus Investment Advisers, Inc. | 15,914 | $60.0K | 0.02% | +2,763+21.0% | Added |
| EverSource Wealth Advisors, LLC | 16,033 | $60.4K | 0.00% | +15,913+13,260.8% | Added |
| Fortis Capital Management LLC | 16,606 | $62.6K | 0.01% | 00.0% | Unchanged |
| Miracle Mile Advisors, LLC | 17,020 | $64.2K | 0.00% | −19−0.1% | Reduced |
| ProShare Advisors LLC | 17,081 | $64.4K | 0.00% | −1,817−9.6% | Reduced |
| Kraematon Investment Advisors, Inc | 17,435 | $65.7K | 0.06% | −16,150−48.1% | Reduced |
| Advisor Group Holdings, Inc. | 17,748 | $67.8K | 0.00% | −333−1.8% | Reduced |
| SG Americas Securities, LLC | 18,040 | $68.0K | 0.00% | +18,040 | New |
| Quest Partners LLC | 19,820 | $74.7K | 0.00% | 00.0% | Unchanged |
| Cetera Investment Advisers | 20,206 | $76.2K | 0.00% | +2,056+11.3% | Added |
| Axq Capital, LP | 20,435 | $77.0K | 0.03% | −20,847−50.5% | Reduced |
| National Asset Management, Inc. | 20,480 | $77.2K | 0.00% | +2,192+12.0% | Added |
| New York State Common Retirement Fund | 21,447 | $80.9K | 0.00% | 00.0% | Unchanged |
| Wolverine Trading, LLC | 21,820 | $82.7K | 0.00% | −23,708−52.1% | Reduced |
| Police & Firemen's Retirement System of New Jersey | 23,573 | $88.9K | 0.00% | +7,263+44.5% | Added |
| Concurrent Investment Advisors, LLC | 24,008 | $90.5K | 0.00% | −1,250−4.9% | Reduced |
| Manufacturers Life Insurance Company, The | 25,987 | $98.0K | 0.00% | −1,958−7.0% | Reduced |
| Farallon Capital Management, L.L.C. | 27,600 | $104.1K | 0.00% | 00.0% | Unchanged |
| Raymond James Financial Inc | 27,672 | $104.3K | 0.00% | +1,703+6.6% | Added |
| Verition Fund Management LLC | 31,154 | $117.5K | 0.00% | 00.0% | Unchanged |
| Profund Advisors LLC | 33,712 | $127.1K | 0.00% | +11,999+55.3% | Added |
| Sig Brokerage, LP | 34,502 | $130.1K | 0.03% | +34,502 | New |
| MML Investors Services, LLC | 34,550 | $130.3K | 0.00% | −4,768−12.1% | Reduced |
| Creative Planning | 36,378 | $137.1K | 0.00% | −4,786−11.6% | Reduced |
| Intech Investment Management LLC | 38,639 | $145.7K | 0.00% | −106,251−73.3% | Reduced |
| Engineers Gate Manager LP | 41,043 | $154.7K | 0.00% | +41,043 | New |
| Price T Rowe Associates Inc | 41,493 | $157.0K | 0.00% | +7,262+21.2% | Added |
| MetLife Investment Management | 44,534 | $167.9K | 0.00% | −2,336−5.0% | Reduced |
| Mirae Asset Global ETFs Holdings Ltd. | 45,905 | $173.2K | 0.00% | −1,443−3.0% | Reduced |
| Virtu Financial LLC | 48,068 | $181.0K | 0.01% | −219,710−82.0% | Reduced |
| Jefferies Financial Group Inc. | 50,000 | $188.5K | 0.00% | +15,000+42.9% | Added |
| DLD Asset Management, LP | 50,000 | $188.5K | 0.02% | +27,400+121.2% | Added |
| Bridgeway Capital Management, LLC | 50,600 | $190.8K | 0.00% | +50,600 | New |
| Janney Montgomery Scott LLC | 58,560 | $221.0K | 0.00% | +58,560 | New |
| Wealth Effects LLC | 59,850 | $225.6K | 0.07% | +28,100+88.5% | Added |
| Stifel Financial Corp | 60,411 | $227.8K | 0.00% | +18,851+45.4% | Added |