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, Q2 2025
Institutional positions in Altimmune, Inc. as of Jun 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
- 180
- +4 vs. Q1 2025
- Shares held
- 37.6M
- −579.0K (−1.5%) vs. Q1 2025
- Total value
- $145.5M
- −$45.7M (−23.9%) vs. Q1 2025
- New holders
- 38
- 72 more added
- Sold out
- 34
- 39 more reduced
1 institution that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 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, Q2 2025
Shares, value and share of portfolio for each institution holding Altimmune, Inc.; share changes are against Q1 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Two Sigma Securities, LLC | 18,111 | $70.1K | 0.01% | +18,111 | New |
| Advisor Group Holdings, Inc. | 18,081 | $70.0K | 0.00% | −1,607−8.2% | Reduced |
| Miracle Mile Advisors, LLC | 17,039 | $65.9K | 0.00% | +39+0.2% | Added |
| North Star Investment Management Corp. | 17,000 | $65.8K | 0.00% | −13,000−43.3% | Reduced |
| Fortis Capital Management LLC | 16,606 | $64.3K | 0.01% | 00.0% | Unchanged |
| Keudell/Morrison Wealth Management | 16,360 | $63.3K | 0.01% | +16,360 | New |
| Police & Firemen's Retirement System of New Jersey | 16,310 | $63.1K | 0.00% | +1,982+13.8% | Added |
| China Universal Asset Management Co., Ltd. | 16,290 | $63.0K | 0.01% | +842+5.5% | Added |
| Advisory Services Network, LLC | 16,087 | $59.4K | 0.00% | +11,500+250.7% | Added |
| Horizon Wealth Management, LLC | 15,000 | $58.0K | 0.01% | −10,000−40.0% | Reduced |
| Tower Research Capital LLC (TRC) | 14,956 | $57.9K | 0.00% | +10,490+234.9% | Added |
| State Board of Administration of Florida Retirement System | 14,344 | $55.5K | 0.00% | 00.0% | Unchanged |
| Bayesian Capital Management, LP | 14,300 | $55.3K | 0.01% | +14,300 | New |
| Los Angeles Capital Management LLC | 13,947 | $54.0K | 0.00% | +13,947 | New |
| Virtus Investment Advisers, Inc. | 13,151 | $50.9K | 0.02% | −5,965−31.2% | Reduced |
| Mercer Global Advisors Inc | 12,868 | $49.8K | 0.00% | +2,121+19.7% | Added |
| PFG Investments, LLC | 12,000 | $46.4K | 0.00% | −5,500−31.4% | Reduced |
| E Fund Management Co., Ltd. | 11,357 | $44.0K | 0.00% | −2,070−15.4% | Reduced |
| 180 Wealth Advisors, LLC | 11,300 | $43.7K | 0.01% | −775−6.4% | Reduced |
| Prudential Financial Inc | 11,195 | $43.3K | 0.00% | +11,195 | New |
| DCF Advisers, LLC | 10,770 | $41.7K | 0.02% | −11,000−50.5% | Reduced |
| Kingswood Wealth Advisors, LLC | 10,400 | $40.2K | 0.00% | +10,400 | New |
| Dark Forest Capital Management LP | 10,165 | $39.3K | 0.00% | +10,165 | New |
| BNP Paribas Arbitrage, SA | 10,095 | $39.1K | 0.00% | +5,253+108.5% | Added |
| Geneos Wealth Management Inc. | 10,000 | $38.7K | 0.00% | 00.0% | Unchanged |
| Legal & General Group Plc | 8,620 | $33.3K | 0.00% | −59,482−87.3% | Reduced |
| SBI Securities Co., Ltd. | 7,118 | $27.5K | 0.00% | +364+5.4% | Added |
| Ameritas Investment Partners, Inc. | 6,955 | $26.9K | 0.00% | 00.0% | Unchanged |
| Jones Financial Companies LLLP | 6,626 | $23.2K | 0.00% | +993+17.6% | Added |
| Larson Financial Group LLC | 5,300 | $20.5K | 0.00% | +300+6.0% | Added |
| California State Teachers Retirement System | 5,146 | $19.9K | 0.00% | −61,276−92.3% | Reduced |
| Russell Investments Group, Ltd. | 4,680 | $18.1K | 0.00% | +476+11.3% | Added |
| UBS Asset Management Americas Inc | 4,215 | $16.3K | 0.00% | −102,657−96.1% | Reduced |
| Quarry LP | 4,000 | $15.5K | 0.00% | +4,000 | New |
| US Bancorp | 3,871 | $15.0K | 0.00% | +2,593+202.9% | Added |
| TD Waterhouse Canada Inc. | 3,500 | $14.7K | 0.00% | +3,500 | New |
| GWM Advisors LLC | 3,488 | $13.5K | 0.00% | −21,271−85.9% | Reduced |
| PEAK6 LLC | 3,423 | $13.2K | 0.00% | +3,423 | New |
| Mirae Asset Global Investments Co., Ltd. | 3,133 | $12.1K | 0.00% | +556+21.6% | Added |
| HighTower Advisors, LLC | 2,453 | $9.49K | 0.00% | −2,797−53.3% | Reduced |
| Amalgamated Bank | 2,451 | $9.00K | 0.00% | 00.0% | Unchanged |
| Activest Wealth Management | 2,001 | $7.74K | 0.00% | 00.0% | Unchanged |
| GF Fund Management Co. Ltd. | 1,821 | $7.05K | 0.00% | 00.0% | Unchanged |
| CWM, LLC | 1,891 | $7.00K | 0.00% | +708+59.8% | Added |
| The PNC Financial Services Group, Inc. | 1,689 | $6.54K | 0.00% | +147+9.5% | Added |
| SRS Capital Advisors, Inc. | 1,642 | $6.35K | 0.00% | +1,028+167.4% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 1,612 | $6.24K | 0.00% | −14,868−90.2% | Reduced |
| Country Trust Bank | 1,000 | $3.87K | 0.00% | +1,000 | New |
| Accordant Advisory Group Inc | 1,000 | $3.87K | 0.00% | +1,000 | New |
| Winnow Wealth LLC | 1,000 | $3.87K | 0.00% | +1,000 | New |
| Bessemer Group Inc | 703 | $3.00K | 0.00% | +305+76.6% | Added |
| NBC Securities, Inc. | 1,000 | $3.00K | 0.00% | +1,000 | New |
| Hollencrest Capital Management | 770 | $2.98K | 0.00% | 00.0% | Unchanged |
| Skopos Labs, Inc. | 572 | $2.21K | 0.00% | +572 | New |
| Stone House Investment Management, LLC | 500 | $1.94K | 0.00% | 00.0% | Unchanged |
| Nisa Investment Advisors, LLC | 376 | $1.46K | 0.00% | +9+2.5% | Added |
| GAMMA Investing LLC | 327 | $1.26K | 0.00% | −1,022−75.8% | Reduced |
| Signaturefd, LLC | 318 | $1.23K | 0.00% | +181+132.1% | Added |
| ZRC Wealth Management, LLC | 286 | $1.11K | 0.00% | 00.0% | Unchanged |
| Daiwa Securities Group Inc. | 235 | $1.00K | 0.00% | 00.0% | Unchanged |
| Fifth Third Bancorp | 250 | $968 | 0.00% | 00.0% | Unchanged |
| Versant Capital Management, Inc | 230 | $890 | 0.00% | −963−80.7% | Reduced |
| IFP Advisors, Inc | 200 | $774 | 0.00% | −1−0.5% | Reduced |
| Ameritas Advisory Services, LLC | 200 | $774 | 0.00% | +200 | New |
| Rothschild Investment LLC | 195 | $755 | 0.00% | +30+18.2% | Added |
| Allworth Financial LP | 190 | $736 | 0.00% | +190 | New |
| Sterling Capital Management LLC | 187 | $724 | 0.00% | −412−68.8% | Reduced |
| Northwestern Mutual Wealth Management Co | 168 | $650 | 0.00% | +68+68.0% | Added |
| EverSource Wealth Advisors, LLC | 120 | $464 | 0.00% | +120 | New |
| Parkside Financial Bank & Trust | 105 | $407 | 0.00% | +105 | New |
| CoreCap Advisors, LLC | 71 | $275 | 0.00% | 00.0% | Unchanged |
| Parallel Advisors, LLC | 40 | $155 | 0.00% | 00.0% | Unchanged |
| Principal Securities, Inc. | 35 | $135 | 0.00% | +35 | New |
| Tradewinds Capital Management, LLC | 20 | $78 | 0.00% | +20 | New |
| Farther Finance Advisors, LLC | 19 | $74 | 0.00% | 00.0% | Unchanged |
| Bernard Wealth Management Corp. | 15 | $59 | 0.00% | 00.0% | Unchanged |
| Twin Peaks Wealth Advisors, LLC | 13 | $47 | 0.00% | +13 | New |
| First Horizon Advisors, Inc. | 3 | $12 | 0.00% | 00.0% | Unchanged |
| Huntington National Bank | 2 | $8 | 0.00% | 00.0% | Unchanged |
| Cornerstone Planning Group LLC | 1 | $4 | 0.00% | 00.0% | Unchanged |
| Bellevue Group AG | 0 | $0 | 0.00% | −1,056,793−100.0% | Sold out |
| Schroder Investment Management Group | 0 | $0 | 0.00% | −961,884−100.0% | Sold out |
| RFG Advisory, LLC | 0 | $0 | 0.00% | −324,397−100.0% | Sold out |
| Jane Street Group, LLC | 0 | $0 | 0.00% | −152,642−100.0% | Sold out |
| Swiss National Bank | 0 | $0 | 0.00% | −139,500−100.0% | Sold out |
| Squarepoint Ops LLC | 0 | $0 | 0.00% | −133,885−100.0% | Sold out |
| Balyasny Asset Management LLC | 0 | $0 | 0.00% | −54,953−100.0% | Sold out |
| State of Wisconsin Investment Board | 0 | $0 | 0.00% | −48,087−100.0% | Sold out |
| Fox Run Management, L.L.C. | 0 | $0 | 0.00% | −38,200−100.0% | Sold out |
| Corebridge Financial, Inc. | 0 | $0 | 0.00% | −34,796−100.0% | Sold out |
| Janus Henderson Group PLC | 0 | $0 | 0.00% | −32,000−100.0% | Sold out |
| Marex Group plc | 0 | $0 | 0.00% | −25,000−100.0% | Sold out |
| Arizona State Retirement System | 0 | $0 | 0.00% | −20,386−100.0% | Sold out |
| Teacher Retirement System of Texas | 0 | $0 | 0.00% | −19,144−100.0% | Sold out |
| American Century Companies Inc | 0 | $0 | 0.00% | −17,175−100.0% | Sold out |
| SG Americas Securities, LLC | 0 | $0 | 0.00% | −16,472−100.0% | Sold out |
| CIBC World Markets Corp | 0 | $0 | 0.00% | −15,760−100.0% | Sold out |
| Bridgefront Capital, LLC | 0 | $0 | 0.00% | −14,518−100.0% | Sold out |
| PVG Asset Management Corp | 0 | $0 | 0.00% | −14,025−100.0% | Sold out |
| Atria Investments LLC | 0 | $0 | 0.00% | −12,285−100.0% | Sold out |