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 2022
Institutional positions in Altimmune, Inc. as of Dec 31, 2022. 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
- 128
- +6 vs. Q3 2022
- Shares held
- 46.8M
- +770.8K (+1.7%) vs. Q3 2022
- Total value
- $769.9M
- +$181.8M (+30.9%) vs. Q3 2022
- New holders
- 36
- 38 more added
- Sold out
- 30
- 35 more reduced
Compare with Q3 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, Q4 2022
Shares, value and share of portfolio for each institution holding Altimmune, Inc.; share changes are against Q3 2022.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| State Street Corp | 5,914,588 | $97.3M | 0.01% | +2,515,732+74.0% | Added |
| Avidity Partners Management LP | 3,990,000 | $65.6M | 1.53% | +1,306,000+48.7% | Added |
| Janus Henderson Group PLC | 3,833,579 | $63.1M | 0.05% | −288,235−7.0% | Reduced |
| Nuveen Asset Management, LLC | 3,265,963 | $53.7M | 0.02% | +52,063+1.6% | Added |
| Tang Capital Management LLC | 2,700,450 | $44.4M | 6.45% | +100,000+3.8% | Added |
| Cormorant Asset Management, LP | 2,600,000 | $42.8M | 2.87% | −842,863−24.5% | Reduced |
| Vanguard Group Inc | 2,532,420 | $41.7M | 0.00% | +505,378+24.9% | Added |
| BlackRock Inc. | 1,354,033 | $22.3M | 0.00% | +134,733+11.1% | Added |
| Woodline Partners LP | 1,304,024 | $21.5M | 0.30% | +285,933+28.1% | Added |
| Marshall Wace, LLP | 1,239,794 | $20.4M | 0.05% | +140,880+12.8% | Added |
| Citadel Advisors LLC | 1,159,461 | $19.1M | 0.02% | +1,030,210+797.1% | Added |
| Pictet Asset Management SA | 1,078,372 | $17.7M | 0.03% | +1,078,372 | New |
| Jennison Associates LLC | 928,813 | $15.3M | 0.02% | +747,283+411.7% | Added |
| Two Sigma Advisers, LP | 925,300 | $15.2M | 0.04% | +56,500+6.5% | Added |
| Two Sigma Investments, LP | 776,297 | $12.8M | 0.04% | −201,350−20.6% | Reduced |
| Goldman Sachs Group Inc | 767,834 | $12.6M | 0.00% | +32,090+4.4% | Added |
| Laurion Capital Management LP | 751,300 | $12.4M | 0.35% | +1,195+0.2% | Added |
| Ardsley Advisory Partners LP | 704,750 | $11.6M | 2.94% | −223,200−24.1% | Reduced |
| Baker Bros. Advisors LP | 653,562 | $10.8M | 0.06% | −1,116,119−63.1% | Reduced |
| Rafferty Asset Management, LLC | 598,887 | $9.85M | 0.08% | +298,556+99.4% | Added |
| Bank of America Corp | 529,636 | $8.71M | 0.00% | +267,432+102.0% | Added |
| Renaissance Technologies LLC | 508,000 | $8.36M | 0.01% | −490,200−49.1% | Reduced |
| Geode Capital Management, LLC | 438,882 | $7.22M | 0.00% | −37,185−7.8% | Reduced |
| Morgan Stanley | 434,584 | $7.15M | 0.00% | −157,326−26.6% | Reduced |
| Invesco Ltd. | 425,849 | $7.01M | 0.00% | +425,849 | New |
| UBS Group AG | 383,069 | $6.30M | 0.00% | +326,792+580.7% | Added |
| Sphera Funds Management Ltd. | 380,298 | $6.26M | 1.97% | −220,000−36.6% | Reduced |
| Barclays PLC | 361,241 | $5.94M | 0.01% | +173,277+92.2% | Added |
| Susquehanna International Group, LLP | 352,073 | $5.79M | 0.01% | +176,786+100.9% | Added |
| Sectoral Asset Management Inc | 342,500 | $5.63M | 1.09% | +73,400+27.3% | Added |
| Tri Locum Partners LP | 325,694 | $5.36M | 2.37% | +168,391+107.0% | Added |
| Citigroup Inc | 291,805 | $4.80M | 0.01% | +19,699+7.2% | Added |
| Ikarian Capital, LLC | 273,432 | $4.50M | 1.87% | −198,622−42.1% | Reduced |
| Jane Street Group, LLC | 245,143 | $4.03M | 0.01% | +14,580+6.3% | Added |
| Beirne Wealth Consulting Services, LLC | 237,020 | $3.90M | 1.93% | −45,800−16.2% | Reduced |
| Simplex Trading, LLC | 226,629 | $3.73M | 0.18% | +88,886+64.5% | Added |
| Rock Springs Capital Management LP | 223,255 | $3.67M | 0.09% | 00.0% | Unchanged |
| Macquarie Group Ltd | 208,685 | $3.43M | 0.00% | +208,685 | New |
| Candriam Luxembourg S.C.A. | 200,000 | $3.29M | 0.02% | 00.0% | Unchanged |
| Balyasny Asset Management LLC | 179,748 | $2.96M | 0.01% | −857,914−82.7% | Reduced |
| JPMorgan Chase & Co | 179,098 | $2.95M | 0.00% | −471,930−72.5% | Reduced |
| Dimensional Fund Advisors LP | 177,865 | $2.92M | 0.00% | +3,492+2.0% | Added |
| Group One Trading, L.P. | 175,742 | $2.89M | 0.10% | +137,151+355.4% | Added |
| Knoll Capital Management, LLC | 173,864 | $2.86M | 6.45% | 00.0% | Unchanged |
| Millennium Management LLC | 144,738 | $2.38M | 0.00% | −360,989−71.4% | Reduced |
| Northern Trust Corp | 139,918 | $2.30M | 0.00% | +28,529+25.6% | Added |
| ETF Managers Group, LLC | 138,196 | $2.27M | 0.11% | +123,729+855.2% | Added |
| Platinum Investment Management Ltd | 118,730 | $1.95M | 0.07% | 00.0% | Unchanged |
| Swiss National Bank | 118,300 | $1.95M | 0.00% | +118,300 | New |
| Prudential Financial Inc | 110,650 | $1.82M | 0.00% | +110,650 | New |
| BNP Paribas Arbitrage, SA | 105,085 | $1.73M | 0.00% | +22,746+27.6% | Added |
| Ensign Peak Advisors, Inc | 94,415 | $1.55M | 0.00% | +37,115+64.8% | Added |
| DCF Advisers, LLC | 80,680 | $1.33M | 1.03% | −148,320−64.8% | Reduced |
| Walleye Trading LLC | 78,324 | $1.29M | 0.03% | +78,324 | New |
| Picton Mahoney Asset Management | 75,570 | $1.24M | 0.06% | +17,220+29.5% | Added |
| Silvercrest Asset Management Group LLC | 62,500 | $1.03M | 0.01% | 00.0% | Unchanged |
| UBS Asset Management Americas Inc | 54,700 | $899.8K | 0.00% | +54,700 | New |
| Bank of New York Mellon Corp | 53,292 | $876.7K | 0.00% | −19,804−27.1% | Reduced |
| Boothbay Fund Management, LLC | 52,242 | $859.4K | 0.03% | −34,669−39.9% | Reduced |
| Caption Management, LLC | 52,104 | $857.1K | 0.14% | −2,896−5.3% | Reduced |
| Silverarc Capital Management, LLC | 50,546 | $831.5K | 0.29% | −49,923−49.7% | Reduced |
| State of Wisconsin Investment Board | 49,113 | $807.9K | 0.00% | +49,113 | New |
| Advisory Research Inc | 44,216 | $727.4K | 0.07% | +9,066+25.8% | Added |
| California State Teachers Retirement System | 42,584 | $700.5K | 0.00% | +42,584 | New |
| Gsa Capital Partners LLP | 41,621 | $685.0K | 0.09% | −1,000−2.3% | Reduced |
| Skandinaviska Enskilda Banken AB (publ) | 38,559 | $634.0K | 0.00% | −2,234−5.5% | Reduced |
| Credit Suisse AG | 38,137 | $627.4K | 0.00% | +38,137 | New |
| ClariVest Asset Management LLC | 37,400 | $615.0K | 0.03% | −700−1.8% | Reduced |
| Price T Rowe Associates Inc | 35,900 | $591.0K | 0.00% | −98,714−73.3% | Reduced |
| Alps Advisors Inc | 33,325 | $548.2K | 0.00% | +6,546+24.4% | Added |
| E Fund Management Co., Ltd. | 31,286 | $515.0K | 0.04% | +10,646+51.6% | Added |
| Tower Research Capital LLC (TRC) | 29,307 | $482.0K | 0.02% | +171+0.6% | Added |
| Landscape Capital Management, L.L.C. | 28,975 | $476.6K | 0.07% | +28,975 | New |
| D. E. Shaw & Co., Inc. | 27,702 | $455.7K | 0.00% | +27,702 | New |
| SG Americas Securities, LLC | 23,847 | $392.0K | 0.01% | +9,785+69.6% | Added |
| SeaCrest Wealth Management, LLC | 23,535 | $387.2K | 0.06% | +23,535 | New |
| Hudson Bay Capital Management LP | 20,731 | $341.0K | 0.00% | +20,731 | New |
| MML Investors Services, LLC | 20,005 | $329.0K | 0.00% | +50.0% | Added |
| Lighthouse Investment Partners, LLC | 19,536 | $321.4K | 0.06% | +19,536 | New |
| Algert Global LLC | 18,560 | $305.3K | 0.02% | +5,280+39.8% | Added |
| Belvedere Trading LLC | 17,488 | $287.7K | 0.16% | +17,488 | New |
| Charles Schwab Investment Management Inc | 17,274 | $284.2K | 0.00% | 00.0% | Unchanged |
| 683 Capital Management, LLC | 17,178 | $282.6K | 0.03% | +17,178 | New |
| Vahanian & Associates Financial Planning Inc. | 17,130 | $281.8K | 0.92% | −250−1.4% | Reduced |
| Commonwealth Equity Services, LLC | 16,549 | $272.0K | 0.00% | 00.0% | Unchanged |
| Arete Wealth Advisors, LLC | 24,005 | $264.3K | 0.02% | +24,005 | New |
| NinePointTwo Capital | 15,947 | $262.0K | 0.11% | +15,947 | New |
| Mirabella Financial Services LLP | 15,466 | $254.4K | 0.02% | +15,466 | New |
| Teacher Retirement System of Texas | 14,765 | $243.0K | 0.00% | +14,765 | New |
| Arizona State Retirement System | 13,833 | $227.6K | 0.00% | +13,833 | New |
| Ameriprise Financial Inc | 13,632 | $224.0K | 0.00% | +13,632 | New |
| Quantbot Technologies LP | 13,595 | $223.6K | 0.02% | −8,943−39.7% | Reduced |
| Legal & General Group Plc | 13,045 | $214.6K | 0.00% | −40,502−75.6% | Reduced |
| Virtus ETF Advisers LLC | 12,993 | $213.7K | 0.11% | +12,993 | New |
| Qube Research & Technologies Ltd | 12,645 | $208.0K | 0.00% | −21,934−63.4% | Reduced |
| Man Group plc | 12,226 | $201.1K | 0.00% | +12,226 | New |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 10,646 | $175.1K | 0.00% | +10,646 | New |
| Eagle Ridge Investment Management | 10,373 | $170.6K | 0.02% | 00.0% | Unchanged |
| Cetera Advisors LLC | 10,100 | $166.1K | 0.00% | −2,300−18.5% | Reduced |
| WealthPlan Investment Management, LLC | 11,931 | $157.6K | 0.01% | −1,248−9.5% | Reduced |