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 2023
Institutional positions in Altimmune, Inc. as of Mar 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
- 133
- +5 vs. Q4 2022
- Shares held
- 43.4M
- −3.41M (−7.3%) vs. Q4 2022
- Total value
- $205.4M
- −$564.5M (−73.3%) vs. Q4 2022
- New holders
- 36
- 51 more added
- Sold out
- 31
- 31 more reduced
Compare with Q4 2022: 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 2023
Shares, value and share of portfolio for each institution holding Altimmune, Inc.; share changes are against Q4 2022.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Nuveen Asset Management, LLC | 3,268,061 | $35.7M | 0.01% | +2,098+0.1% | Added |
| State Street Corp | 4,959,254 | $20.9M | 0.00% | −955,334−16.2% | Reduced |
| Laurion Capital Management LP | 3,501,330 | $14.8M | 0.67% | +2,750,030+366.0% | Added |
| Tang Capital Management LLC | 2,750,000 | $11.6M | 1.73% | +49,550+1.8% | Added |
| Vanguard Group Inc | 2,537,721 | $10.7M | 0.00% | +5,301+0.2% | Added |
| Citadel Advisors LLC | 2,044,485 | $8.63M | 0.01% | +885,024+76.3% | Added |
| Marshall Wace, LLP | 1,597,130 | $6.74M | 0.02% | +357,336+28.8% | Added |
| Ardsley Advisory Partners LP | 1,447,250 | $6.11M | 1.34% | +742,500+105.4% | Added |
| BlackRock Inc. | 1,394,055 | $5.88M | 0.00% | +40,022+3.0% | Added |
| Avidity Partners Management LP | 1,315,200 | $5.55M | 0.18% | −2,674,800−67.0% | Reduced |
| Millennium Management LLC | 1,068,745 | $4.51M | 0.01% | +924,007+638.4% | Added |
| Two Sigma Investments, LP | 1,044,187 | $4.41M | 0.01% | +267,890+34.5% | Added |
| Two Sigma Advisers, LP | 951,300 | $4.01M | 0.01% | +26,000+2.8% | Added |
| Goldman Sachs Group Inc | 855,059 | $3.61M | 0.00% | +87,225+11.4% | Added |
| Susquehanna International Group, LLP | 796,722 | $3.36M | 0.01% | +444,649+126.3% | Added |
| Morgan Stanley | 785,521 | $3.31M | 0.00% | +350,937+80.8% | Added |
| Qube Research & Technologies Ltd | 682,680 | $2.88M | 0.02% | +670,035+5,298.8% | Added |
| Ikarian Capital, LLC | 677,300 | $2.86M | 1.19% | +403,868+147.7% | Added |
| Bank of America Corp | 646,146 | $2.73M | 0.00% | +116,510+22.0% | Added |
| Dimensional Fund Advisors LP | 566,501 | $2.39M | 0.00% | +388,636+218.5% | Added |
| Tri Locum Partners LP | 528,814 | $2.23M | 0.68% | +203,120+62.4% | Added |
| Rafferty Asset Management, LLC | 516,563 | $2.18M | 0.01% | −82,324−13.7% | Reduced |
| Balyasny Asset Management LLC | 490,688 | $2.07M | 0.01% | +310,940+173.0% | Added |
| Geode Capital Management, LLC | 482,361 | $2.04M | 0.00% | +43,479+9.9% | Added |
| Sectoral Asset Management Inc | 479,100 | $2.02M | 0.39% | +136,600+39.9% | Added |
| Occudo Quantitative Strategies LP | 434,048 | $1.83M | 0.17% | +434,048 | New |
| Gsa Capital Partners LLP | 415,854 | $1.75M | 0.17% | +374,233+899.1% | Added |
| Citigroup Inc | 412,550 | $1.74M | 0.00% | +120,745+41.4% | Added |
| Caption Management, LLC | 400,000 | $1.69M | 0.36% | +347,896+667.7% | Added |
| BNP Paribas Arbitrage, SA | 339,176 | $1.43M | 0.00% | +234,091+222.8% | Added |
| Ensign Peak Advisors, Inc | 326,777 | $1.38M | 0.00% | +232,362+246.1% | Added |
| Sphera Funds Management Ltd. | 300,000 | $1.27M | 0.27% | −80,298−21.1% | Reduced |
| Jump Financial, LLC | 288,700 | $1.22M | 0.05% | +288,700 | New |
| Renaissance Technologies LLC | 276,300 | $1.17M | 0.00% | −231,700−45.6% | Reduced |
| Schonfeld Strategic Advisors LLC | 274,441 | $1.16M | 0.01% | +274,441 | New |
| Beirne Wealth Consulting Services, LLC | 249,420 | $1.05M | 0.74% | +12,400+5.2% | Added |
| Barclays PLC | 226,861 | $957.4K | 0.00% | −134,380−37.2% | Reduced |
| Rock Springs Capital Management LP | 223,255 | $942.1K | 0.02% | 00.0% | Unchanged |
| Squarepoint Ops LLC | 214,264 | $904.2K | 0.01% | +214,264 | New |
| Jane Street Group, LLC | 182,755 | $771.2K | 0.00% | −62,388−25.4% | Reduced |
| Boothbay Fund Management, LLC | 175,860 | $742.1K | 0.02% | +123,618+236.6% | Added |
| Knoll Capital Management, LLC | 173,864 | $733.7K | 1.23% | 00.0% | Unchanged |
| HRT Financial LP | 164,768 | $695.0K | 0.01% | +164,768 | New |
| UBS Group AG | 162,198 | $684.5K | 0.00% | −220,871−57.7% | Reduced |
| Northern Trust Corp | 142,039 | $599.4K | 0.00% | +2,121+1.5% | Added |
| Group One Trading, L.P. | 119,131 | $502.7K | 0.02% | −56,611−32.2% | Reduced |
| Swiss National Bank | 106,100 | $447.7K | 0.00% | −12,200−10.3% | Reduced |
| Silvercrest Asset Management Group LLC | 103,500 | $436.8K | 0.00% | +41,000+65.6% | Added |
| Cubist Systematic Strategies, LLC | 99,468 | $419.8K | 0.00% | +99,468 | New |
| Platinum Investment Management Ltd | 95,081 | $401.2K | 0.01% | −23,649−19.9% | Reduced |
| Profund Advisors LLC | 93,919 | $396.3K | 0.02% | +93,919 | New |
| Wells Fargo & Company | 89,737 | $378.7K | 0.00% | +86,032+2,322.1% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 78,557 | $331.5K | 0.00% | +78,557 | New |
| LMR Partners LLP | 76,976 | $324.8K | 0.01% | +76,976 | New |
| DCF Advisers, LLC | 76,975 | $324.8K | 0.24% | −3,705−4.6% | Reduced |
| Arete Wealth Advisors, LLC | 28,427 | $322.0K | 0.03% | +4,422+18.4% | Added |
| JPMorgan Chase & Co | 76,085 | $321.0K | 0.00% | −103,013−57.5% | Reduced |
| Tekla Capital Management LLC | 75,000 | $316.5K | 0.01% | +75,000 | New |
| Verition Fund Management LLC | 60,657 | $256.0K | 0.00% | +60,657 | New |
| NinePointTwo Capital | 60,482 | $255.0K | 0.10% | +44,535+279.3% | Added |
| Bank of New York Mellon Corp | 58,954 | $248.8K | 0.00% | +5,662+10.6% | Added |
| Dana Investment Advisors, Inc. | 57,652 | $243.3K | 0.01% | +57,652 | New |
| HAP Trading, LLC | 52,113 | $220.0K | 0.05% | +52,113 | New |
| OrbiMed Advisors LLC | 50,600 | $213.5K | 0.00% | +50,600 | New |
| Brookfield Asset Management Inc. | 47,785 | $201.7K | 0.00% | +47,785 | New |
| Walleye Capital LLC | 47,239 | $199.3K | 0.00% | +47,239 | New |
| State of Wisconsin Investment Board | 44,161 | $186.4K | 0.00% | −4,952−10.1% | Reduced |
| Dark Forest Capital Management LP | 43,935 | $185.4K | 0.04% | +43,935 | New |
| Walleye Trading LLC | 43,115 | $181.9K | 0.01% | −35,209−45.0% | Reduced |
| California State Teachers Retirement System | 43,107 | $181.9K | 0.00% | +523+1.2% | Added |
| Dynamic Technology Lab Private Ltd | 42,357 | $179.0K | 0.02% | +42,357 | New |
| Ergoteles LLC | 42,122 | $177.8K | 0.01% | +42,122 | New |
| Credit Suisse AG | 41,372 | $174.6K | 0.00% | +3,235+8.5% | Added |
| Man Group plc | – | $160.2K | 0.00% | – | – |
| Two Sigma Securities, LLC | 33,495 | $141.3K | 0.01% | +33,495 | New |
| Y-Intercept (Hong Kong) Ltd | 32,695 | $138.0K | 0.02% | +32,695 | New |
| Alps Advisors Inc | 32,465 | $137.0K | 0.00% | −860−2.6% | Reduced |
| Fox Run Management, L.L.C. | 30,435 | $128.4K | 0.04% | +30,435 | New |
| Commonwealth Equity Services, LLC | 30,369 | $128.0K | 0.00% | +13,820+83.5% | Added |
| Landscape Capital Management, L.L.C. | 30,066 | $126.9K | 0.02% | +1,091+3.8% | Added |
| E Fund Management Co., Ltd. | 29,334 | $124.0K | 0.01% | −1,952−6.2% | Reduced |
| Bayesian Capital Management, LP | 28,675 | $121.0K | 0.01% | +28,675 | New |
| SeaCrest Wealth Management, LLC | 27,353 | $115.4K | 0.02% | +3,818+16.2% | Added |
| Janus Henderson Group PLC | 23,986 | $101.5K | 0.00% | −3,809,593−99.4% | Reduced |
| Nomura Holdings Inc | 23,200 | $97.9K | 0.00% | +23,200 | New |
| Envestnet Asset Management Inc | 23,002 | $97.1K | 0.00% | +23,002 | New |
| MML Investors Services, LLC | 22,140 | $93.0K | 0.00% | +2,135+10.7% | Added |
| AQR Capital Management LLC | 21,662 | $91.4K | 0.00% | +21,662 | New |
| Vahanian & Associates Financial Planning Inc. | 21,430 | $90.4K | 0.25% | +4,300+25.1% | Added |
| XTX Topco Ltd | 21,271 | $89.8K | 0.02% | +21,271 | New |
| Mirae Asset Global Investments Co., Ltd. | 20,791 | $87.7K | 0.00% | +20,791 | New |
| Charles Schwab Investment Management Inc | 20,396 | $86.1K | 0.00% | +3,122+18.1% | Added |
| Tower Research Capital LLC (TRC) | 20,093 | $85.0K | 0.00% | −9,214−31.4% | Reduced |
| Price T Rowe Associates Inc | 19,800 | $84.0K | 0.00% | −16,100−44.8% | Reduced |
| Diametric Capital, LP | 19,356 | $81.7K | 0.04% | +19,356 | New |
| UBS Asset Management Americas Inc | 19,200 | $81.0K | 0.00% | −35,500−64.9% | Reduced |
| ETF Managers Group, LLC | 16,361 | $69.0K | 0.00% | −121,835−88.2% | Reduced |
| Pitcairn Co | 16,261 | $68.6K | 0.01% | +16,261 | New |
| SG Americas Securities, LLC | 15,202 | $64.0K | 0.00% | −8,645−36.3% | Reduced |
| Teacher Retirement System of Texas | 15,144 | $64.0K | 0.00% | +379+2.6% | Added |