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 |
|---|---|---|---|---|---|
| Jump Financial, LLC | 288,700 | $1.22M | 0.05% | +288,700 | New |
| Sphera Funds Management Ltd. | 300,000 | $1.27M | 0.27% | −80,298−21.1% | Reduced |
| Ensign Peak Advisors, Inc | 326,777 | $1.38M | 0.00% | +232,362+246.1% | Added |
| BNP Paribas Arbitrage, SA | 339,176 | $1.43M | 0.00% | +234,091+222.8% | Added |
| Caption Management, LLC | 400,000 | $1.69M | 0.36% | +347,896+667.7% | Added |
| Citigroup Inc | 412,550 | $1.74M | 0.00% | +120,745+41.4% | Added |
| Gsa Capital Partners LLP | 415,854 | $1.75M | 0.17% | +374,233+899.1% | Added |
| Occudo Quantitative Strategies LP | 434,048 | $1.83M | 0.17% | +434,048 | New |
| Sectoral Asset Management Inc | 479,100 | $2.02M | 0.39% | +136,600+39.9% | Added |
| Geode Capital Management, LLC | 482,361 | $2.04M | 0.00% | +43,479+9.9% | Added |
| Balyasny Asset Management LLC | 490,688 | $2.07M | 0.01% | +310,940+173.0% | Added |
| Rafferty Asset Management, LLC | 516,563 | $2.18M | 0.01% | −82,324−13.7% | Reduced |
| Tri Locum Partners LP | 528,814 | $2.23M | 0.68% | +203,120+62.4% | Added |
| Dimensional Fund Advisors LP | 566,501 | $2.39M | 0.00% | +388,636+218.5% | Added |
| Bank of America Corp | 646,146 | $2.73M | 0.00% | +116,510+22.0% | Added |
| Ikarian Capital, LLC | 677,300 | $2.86M | 1.19% | +403,868+147.7% | Added |
| Qube Research & Technologies Ltd | 682,680 | $2.88M | 0.02% | +670,035+5,298.8% | Added |
| Morgan Stanley | 785,521 | $3.31M | 0.00% | +350,937+80.8% | Added |
| Susquehanna International Group, LLP | 796,722 | $3.36M | 0.01% | +444,649+126.3% | Added |
| Goldman Sachs Group Inc | 855,059 | $3.61M | 0.00% | +87,225+11.4% | Added |
| Two Sigma Advisers, LP | 951,300 | $4.01M | 0.01% | +26,000+2.8% | Added |
| Two Sigma Investments, LP | 1,044,187 | $4.41M | 0.01% | +267,890+34.5% | Added |
| Millennium Management LLC | 1,068,745 | $4.51M | 0.01% | +924,007+638.4% | Added |
| Avidity Partners Management LP | 1,315,200 | $5.55M | 0.18% | −2,674,800−67.0% | Reduced |
| BlackRock Inc. | 1,394,055 | $5.88M | 0.00% | +40,022+3.0% | Added |
| Ardsley Advisory Partners LP | 1,447,250 | $6.11M | 1.34% | +742,500+105.4% | Added |
| Marshall Wace, LLP | 1,597,130 | $6.74M | 0.02% | +357,336+28.8% | Added |
| Citadel Advisors LLC | 2,044,485 | $8.63M | 0.01% | +885,024+76.3% | Added |
| Vanguard Group Inc | 2,537,721 | $10.7M | 0.00% | +5,301+0.2% | Added |
| Tang Capital Management LLC | 2,750,000 | $11.6M | 1.73% | +49,550+1.8% | Added |
| Laurion Capital Management LP | 3,501,330 | $14.8M | 0.67% | +2,750,030+366.0% | Added |
| State Street Corp | 4,959,254 | $20.9M | 0.00% | −955,334−16.2% | Reduced |
| Nuveen Asset Management, LLC | 3,268,061 | $35.7M | 0.01% | +2,098+0.1% | Added |
| Cormorant Asset Management, LP | 0 | $0 | 0.00% | −2,600,000−100.0% | Sold out |
| Woodline Partners LP | 0 | $0 | 0.00% | −1,304,024−100.0% | Sold out |
| Pictet Asset Management SA | 0 | $0 | 0.00% | −1,078,372−100.0% | Sold out |
| Jennison Associates LLC | 0 | $0 | 0.00% | −928,813−100.0% | Sold out |
| Baker Bros. Advisors LP | 0 | $0 | 0.00% | −653,562−100.0% | Sold out |
| Invesco Ltd. | 0 | $0 | 0.00% | −425,849−100.0% | Sold out |
| Simplex Trading, LLC | 0 | $0 | 0.00% | −226,629−100.0% | Sold out |
| Macquarie Group Ltd | 0 | $0 | 0.00% | −208,685−100.0% | Sold out |
| Candriam Luxembourg S.C.A. | 0 | $0 | 0.00% | −200,000−100.0% | Sold out |
| Prudential Financial Inc | 0 | $0 | 0.00% | −110,650−100.0% | Sold out |
| Picton Mahoney Asset Management | 0 | $0 | 0.00% | −75,570−100.0% | Sold out |
| Silverarc Capital Management, LLC | 0 | $0 | 0.00% | −50,546−100.0% | Sold out |
| Advisory Research Inc | 0 | $0 | 0.00% | −44,216−100.0% | Sold out |
| Skandinaviska Enskilda Banken AB (publ) | 0 | $0 | 0.00% | −38,559−100.0% | Sold out |
| ClariVest Asset Management LLC | 0 | $0 | 0.00% | −37,400−100.0% | Sold out |
| D. E. Shaw & Co., Inc. | 0 | $0 | 0.00% | −27,702−100.0% | Sold out |
| Hudson Bay Capital Management LP | 0 | $0 | 0.00% | −20,731−100.0% | Sold out |
| Lighthouse Investment Partners, LLC | 0 | $0 | 0.00% | −19,536−100.0% | Sold out |
| Algert Global LLC | 0 | $0 | 0.00% | −18,560−100.0% | Sold out |
| Belvedere Trading LLC | 0 | $0 | 0.00% | −17,488−100.0% | Sold out |
| Mirabella Financial Services LLP | 0 | $0 | 0.00% | −15,466−100.0% | Sold out |
| Cetera Advisors LLC | 0 | $0 | 0.00% | −10,100−100.0% | Sold out |
| WealthPlan Investment Management, LLC | 0 | $0 | 0.00% | −11,931−100.0% | Sold out |
| Rockefeller Capital Management L.P. | 0 | $0 | 0.00% | −1,000−100.0% | Sold out |
| Money Concepts Capital Corp | 0 | $0 | 0.00% | −500−100.0% | Sold out |
| Avondale Wealth Management | 0 | $0 | 0.00% | −75−100.0% | Sold out |
| Capital Advisors, Ltd. LLC | 0 | $0 | 0.00% | −43−100.0% | Sold out |
| Covestor Ltd | 0 | $0 | 0.00% | −42−100.0% | Sold out |
| McElhenny Sheffield Capital Management, LLC | 0 | $0 | 0.00% | −31−100.0% | Sold out |
| Sofos Investments, Inc. | 0 | $0 | 0.00% | −16−100.0% | Sold out |
| McIlrath & Eck, LLC | 0 | $0 | 0.00% | −2−100.0% | Sold out |