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 2021
Institutional positions in Altimmune, Inc. as of Sep 30, 2021. 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
- 119
- +11 vs. Q2 2021
- Shares held
- 32.9M
- +5.63M (+20.7%) vs. Q2 2021
- Total value
- $375.3M
- +$106.2M (+39.5%) vs. Q2 2021
- New holders
- 26
- 48 more added
- Sold out
- 15
- 30 more reduced
1 institution that held it in Q2 2021 haven't filed for Q3 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2021: 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 2021
Shares, value and share of portfolio for each institution holding Altimmune, Inc.; share changes are against Q2 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| VR Adviser, LLC | 3,800,000 | $43.0M | 5.52% | +300,000+8.6% | Added |
| State Street Corp | 3,524,018 | $39.9M | 0.00% | −159,298−4.3% | Reduced |
| BlackRock Inc. | 2,941,790 | $33.3M | 0.00% | +384,548+15.0% | Added |
| Avidity Partners Management LP | 2,167,900 | $24.5M | 0.63% | +2,167,900 | New |
| Vanguard Group Inc | 1,636,357 | $18.5M | 0.00% | +50,264+3.2% | Added |
| Tang Capital Management LLC | 1,600,000 | $18.1M | 3.76% | +816,593+104.2% | Added |
| Credit Suisse AG | 1,410,397 | $16.0M | 0.01% | −19,378−1.4% | Reduced |
| Citadel Advisors LLC | 1,089,852 | $12.3M | 0.01% | −201,013−15.6% | Reduced |
| Sphera Funds Management Ltd. | 1,088,854 | $12.3M | 1.22% | +405,459+59.3% | Added |
| Nuveen Asset Management, LLC | 805,820 | $12.3M | 0.00% | +567,253+237.8% | Added |
| Baker Bros. Advisors LP | 1,072,038 | $12.1M | 0.05% | 00.0% | Unchanged |
| Ardsley Advisory Partners LP | 1,027,500 | $11.7M | 2.44% | +726,000+240.8% | Added |
| D. E. Shaw & Co., Inc. | 955,438 | $10.8M | 0.01% | +127,682+15.4% | Added |
| Marshall Wace North America L.P. | 791,606 | $8.95M | 0.04% | +791,606 | New |
| Morgan Stanley | 721,804 | $8.16M | 0.00% | −53,724−6.9% | Reduced |
| Braun Stacey Associates Inc | 711,818 | $8.05M | 0.32% | +2,890+0.4% | Added |
| Logos Global Management LP | 700,000 | $7.92M | 0.57% | +700,000 | New |
| Geode Capital Management, LLC | 658,852 | $7.45M | 0.00% | +123,336+23.0% | Added |
| Marshall Wace, LLP | 478,923 | $5.42M | 0.03% | −449,793−48.4% | Reduced |
| Goldman Sachs Group Inc | 476,805 | $5.39M | 0.00% | +454,960+2,082.7% | Added |
| Northern Trust Corp | 387,290 | $4.38M | 0.00% | +55,000+16.6% | Added |
| Woodline Partners LP | 348,823 | $3.94M | 0.07% | +348,823 | New |
| Canada Pension Plan Investment Board | 300,000 | $3.39M | 0.00% | +300,000 | New |
| Barclays PLC | 283,019 | $3.20M | 0.00% | +215,047+316.4% | Added |
| Alliancebernstein L.P. | 252,810 | $2.86M | 0.00% | +207,510+458.1% | Added |
| DCF Advisers, LLC | 239,200 | $2.71M | 1.47% | +93,450+64.1% | Added |
| Parkman Healthcare Partners LLC | 175,000 | $1.98M | 0.50% | −25,000−12.5% | Reduced |
| Rafferty Asset Management, LLC | 164,078 | $1.86M | 0.01% | −17,444−9.6% | Reduced |
| Bank of New York Mellon Corp | 161,183 | $1.82M | 0.00% | +26,332+19.5% | Added |
| Acuta Capital Partners, LLC | 150,000 | $1.70M | 0.60% | +150,000 | New |
| Millennium Management LLC | 138,254 | $1.56M | 0.00% | +138,254 | New |
| Knoll Capital Management, LLC | 132,978 | $1.50M | 0.75% | +82,978+166.0% | Added |
| Beirne Wealth Consulting Services, LLC | 131,940 | $1.49M | 0.85% | −1,830−1.4% | Reduced |
| Principal Financial Group Inc | 113,509 | $1.28M | 0.00% | −1,982−1.7% | Reduced |
| Citigroup Inc | 109,065 | $1.23M | 0.00% | −166,894−60.5% | Reduced |
| HAP Trading, LLC | 104,491 | $1.18M | 0.09% | +104,491 | New |
| UBS Group AG | 101,742 | $1.15M | 0.00% | +67,557+197.6% | Added |
| Charles Schwab Investment Management Inc | 98,255 | $1.11M | 0.00% | −114,295−53.8% | Reduced |
| State Board of Administration of Florida Retirement System | 85,759 | $970.0K | 0.00% | +85,759 | New |
| Susquehanna International Group, LLP | 85,477 | $967.0K | 0.00% | −74,125−46.4% | Reduced |
| Voya Investment Management LLC | 81,353 | $920.0K | 0.00% | +68,560+535.9% | Added |
| ExodusPoint Capital Management, LP | 74,358 | $841.0K | 0.01% | +62,717+538.8% | Added |
| Group One Trading, L.P. | 69,605 | $787.0K | 0.02% | +2,747+4.1% | Added |
| Norges Bank | 67,600 | $765.0K | 0.00% | −262,200−79.5% | Reduced |
| Schonfeld Strategic Advisors LLC | 66,600 | $754.0K | 0.01% | +66,600 | New |
| Squarepoint Ops LLC | 60,608 | $685.0K | 0.00% | +50,256+485.5% | Added |
| PointState Capital LP | 60,000 | $679.0K | 0.02% | −40,000−40.0% | Reduced |
| ETF Managers Group, LLC | 52,012 | $664.0K | 0.01% | +52,012 | New |
| Parallax Volatility Advisers, L.P. | 57,130 | $646.0K | 0.01% | +57,130 | New |
| DekaBank Deutsche Girozentrale | 50,000 | $626.0K | 0.00% | +50,000 | New |
| JPMorgan Chase & Co | 54,597 | $617.0K | 0.00% | +40,316+282.3% | Added |
| Alps Advisors Inc | 48,449 | $548.0K | 0.01% | −2,124−4.2% | Reduced |
| Rhumbline Advisers | 46,182 | $522.0K | 0.00% | +4,021+9.5% | Added |
| Apollon Wealth Management, LLC | 43,983 | $497.0K | 0.07% | −600−1.3% | Reduced |
| State of Wisconsin Investment Board | 42,000 | $475.0K | 0.00% | 00.0% | Unchanged |
| Connor, Clark & Lunn Investment Management Ltd. | 40,435 | $457.0K | 0.00% | +40,435 | New |
| LMR Partners LLP | 40,249 | $455.0K | 0.01% | +40,249 | New |
| Wells Fargo & Company | 38,952 | $441.0K | 0.00% | −140,883−78.3% | Reduced |
| National Asset Management, Inc. | 35,227 | $399.0K | 0.01% | −19,153−35.2% | Reduced |
| Price T Rowe Associates Inc | 32,319 | $366.0K | 0.00% | +334+1.0% | Added |
| SG Americas Securities, LLC | 26,981 | $305.0K | 0.00% | +26,981 | New |
| Parametric Portfolio Associates LLC | 26,745 | $302.0K | 0.00% | +2,964+12.5% | Added |
| Brookfield Asset Management Inc. | 26,593 | $301.0K | 0.00% | +26,593 | New |
| Campbell & CO Investment Adviser LLC | 23,300 | $264.0K | 0.09% | +23,300 | New |
| Deutsche Bank AG | 22,802 | $258.0K | 0.00% | +3,508+18.2% | Added |
| Jane Street Group, LLC | 21,717 | $245.0K | 0.00% | −163,087−88.2% | Reduced |
| New York State Common Retirement Fund | 21,648 | $245.0K | 0.00% | −6,152−22.1% | Reduced |
| American International Group, Inc. | 21,695 | $245.0K | 0.00% | +3,486+19.1% | Added |
| Belvedere Trading LLC | 20,005 | $244.0K | 0.07% | +20,005 | New |
| Bank of America Corp | 21,422 | $243.0K | 0.00% | +3,025+16.4% | Added |
| California State Teachers Retirement System | 21,418 | $242.0K | 0.00% | −23,419−52.2% | Reduced |
| Manufacturers Life Insurance Company, The | 21,433 | $242.0K | 0.00% | +2,666+14.2% | Added |
| Dana Investment Advisors, Inc. | 20,635 | $233.0K | 0.01% | +5,180+33.5% | Added |
| MML Investors Services, LLC | 20,221 | $229.0K | 0.00% | +45+0.2% | Added |
| Keebeck Wealth Management, LLC | 20,000 | $226.0K | 0.04% | 00.0% | Unchanged |
| Commonwealth Equity Services, LLC | 19,255 | $217.0K | 0.00% | −482−2.4% | Reduced |
| Wolverine Trading, LLC | 16,730 | $213.0K | 0.00% | +5,157+44.6% | Added |
| Trexquant Investment LP | 18,044 | $204.0K | 0.02% | +18,044 | New |
| Atom Investors LP | 16,977 | $192.0K | 0.04% | +16,977 | New |
| Winton Group Ltd | 15,751 | $178.0K | 0.01% | +15,751 | New |
| Envestnet Asset Management Inc | 15,168 | $172.0K | 0.00% | +15,168 | New |
| Caption Management, LLC | 15,000 | $170.0K | 0.01% | +15,000 | New |
| AdvisorNet Financial, Inc | 14,730 | $167.0K | 0.01% | −8,709−37.2% | Reduced |
| ProShare Advisors LLC | 13,563 | $153.0K | 0.00% | −1,757−11.5% | Reduced |
| Invesco Ltd. | 12,940 | $147.0K | 0.00% | +2,502+24.0% | Added |
| MetLife Investment Management | 12,799 | $144.8K | 0.00% | 00.0% | Unchanged |
| Harvest Investment Services, LLC | 11,496 | $130.0K | 0.05% | −526−4.4% | Reduced |
| Fox Run Management, L.L.C. | 11,165 | $126.0K | 0.08% | +11,165 | New |
| Metropolitan Life Insurance Co | 10,153 | $114.8K | 0.00% | +354+3.6% | Added |
| Argent Trust Co | 10,000 | $113.0K | 0.01% | 00.0% | Unchanged |
| BNP Paribas Arbitrage, SA | 9,330 | $105.5K | 0.00% | +5,909+172.7% | Added |
| Royal Bank of Canada | 6,469 | $73.0K | 0.00% | +2,482+62.3% | Added |
| Tower Research Capital LLC (TRC) | 5,136 | $58.0K | 0.00% | −17,799−77.6% | Reduced |
| Emfo, LLC | 5,000 | $57.0K | 0.05% | 00.0% | Unchanged |
| Cutler Group LP | 4,500 | $50.0K | 0.00% | +4,180+1,306.3% | Added |
| Legal & General Group Plc | 3,166 | $36.0K | 0.00% | +572+22.1% | Added |
| Ameritas Investment Partners, Inc. | 3,098 | $35.0K | 0.00% | +550+21.6% | Added |
| Advisor Group Holdings, Inc. | 2,210 | $26.0K | 0.00% | −755−25.5% | Reduced |
| Banque Cantonale Vaudoise | 1,500 | $17.0K | 0.00% | 00.0% | Unchanged |
| Private Capital Group, LLC | 1,153 | $13.0K | 0.00% | +560+94.4% | Added |