ALT
Altimmune, Inc. · Healthcare · Biotechnology
Momentum inputs (comparable managers): holder breadth 0.0% · share flow +27.5% · net new positions 0.0% — formula
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q3 2025
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 82 | +6 | 85.94M | $261.24M | +14 | −8 |
| Q1 2026 | 78 | 0 | 58.31M | $179.46M | +8 | −8 |
| Q4 2025 | 77 | +2 | 45.71M | $165.02M | +3 | −1 |
| Q3 2025 | 15 | 0 | 25.85M | $97.47M | +1 | −1 |
| Q2 2025 | 12 | +1 | 18.03M | $69.77M | +1 | — |
| Q1 2025 | 8 | -2 | 8.83M | $44.16M | — | −2 |
| Q4 2024 | 10 | +1 | 7.53M | $54.26M | +1 | — |
| Q3 2024 | 8 | 0 | 3.66M | $22.46M | — | — |
| Q2 2024 | 8 | — | 3.17M | $21.05M | — | — |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | The Vanguard Group ✦ (passive) | 6.37M | +23.4% | $24.03M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 2 | The Vanguard Group ✦ (passive) | 6.37M | +23.4% | $24.03M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 3 | The Vanguard Group ✦ (passive) | 6.37M | +23.4% | $24.03M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 4 | BlackRock ✦ (passive) | 6.37M | 0.0% | $24.03M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 5 | BlackRock ✦ (passive) | 6.37M | 0.0% | $24.03M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 6 | BlackRock ✦ (passive) | 6.37M | 0.0% | $24.03M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 7 | BlackRock ✦ (passive) | 6.37M | 0.0% | $24.03M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 8 | BlackRock ✦ (passive) | 6.37M | 0.0% | $24.03M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 9 | BlackRock ✦ (passive) | 6.37M | 0.0% | $24.03M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 10 | BlackRock ✦ (passive) | 6.37M | 0.0% | $24.03M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 11 | BlackRock ✦ (passive) | 6.37M | 0.0% | $24.03M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 12 | BlackRock ✦ (passive) | 6.37M | 0.0% | $24.03M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 13 | State Street Global Advisors ✦ (passive) | 3.60M | +30.8% | $13.58M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 14 | Geode Capital Management ✦ (passive) | 2.02M | +4.3% | $7.61M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 15 | Geode Capital Management ✦ (passive) | 2.02M | +4.3% | $7.61M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 16 | Two Sigma Investments ✦ | 2.00M | +356.6% | $7.53M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 17 | Morgan Stanley ✦ | 1.49M | — | $5.62M | 0.0% | n/c | 1 | SEC ↗ |
| 18 | Morgan Stanley ✦ | 1.49M | — | $5.62M | 0.0% | n/c | 1 | SEC ↗ |
| 19 | Morgan Stanley ✦ | 1.49M | — | $5.62M | 0.0% | n/c | 1 | SEC ↗ |
| 20 | Morgan Stanley ✦ | 1.49M | — | $5.62M | 0.0% | n/c | 1 | SEC ↗ |
| 21 | Morgan Stanley ✦ | 1.49M | — | $5.62M | 0.0% | n/c | 1 | SEC ↗ |
| 22 | Morgan Stanley ✦ | 1.49M | — | $5.62M | 0.0% | n/c | 1 | SEC ↗ |
| 23 | Morgan Stanley ✦ | 1.49M | — | $5.62M | 0.0% | n/c | 1 | SEC ↗ |
| 24 | Citadel Advisors ✦ | 1.28M | +144.9% | $4.83M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 25 | Citadel Advisors ✦ | 1.28M | +144.9% | $4.83M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 26 | Goldman Sachs Group ✦ | 562.26K | — | $2.12M | 0.0% | n/c | 1 | SEC ↗ |
| 27 | Goldman Sachs Group ✦ | 562.26K | — | $2.12M | 0.0% | n/c | 1 | SEC ↗ |
| 28 | Point72 Asset Management ✦ | 476.93K | New | $1.80M | 0.0% | New | 1 | SEC ↗ |
| 29 | Fidelity (FMR) ✦ | 445.14K | +10.8% | $1.68M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 30 | Fidelity (FMR) ✦ | 445.14K | +10.8% | $1.68M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 31 | Millennium Management ✦ | 367.58K | +369.5% | $1.39M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 32 | D. E. Shaw & Co. ✦ | 360.39K | +603.1% | $1.36M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 33 | Wellington Management ✦ | 264.80K | +5.1% | $998,304 | 0.0% | ▲ Add | 6 | SEC ↗ |
| 34 | Wellington Management ✦ | 264.80K | +5.1% | $998,304 | 0.0% | ▲ Add | 6 | SEC ↗ |
| 35 | Wellington Management ✦ | 264.80K | +5.1% | $998,304 | 0.0% | ▲ Add | 6 | SEC ↗ |
| 36 | JPMorgan Chase ✦ | 198.38K | — | $747,902 | 0.0% | n/c | 1 | SEC ↗ |
| 37 | JPMorgan Chase ✦ | 198.38K | — | $747,902 | 0.0% | n/c | 1 | SEC ↗ |
| 38 | JPMorgan Chase ✦ | 198.38K | — | $747,902 | 0.0% | n/c | 1 | SEC ↗ |
| 39 | JPMorgan Chase ✦ | 198.38K | — | $747,902 | 0.0% | n/c | 1 | SEC ↗ |
| 40 | JPMorgan Chase ✦ | 198.38K | — | $747,902 | 0.0% | n/c | 1 | SEC ↗ |
| 41 | JPMorgan Chase ✦ | 198.38K | — | $747,902 | 0.0% | n/c | 1 | SEC ↗ |
| 42 | JPMorgan Chase ✦ | 198.38K | — | $747,902 | 0.0% | n/c | 1 | SEC ↗ |
| 43 | JPMorgan Chase ✦ | 198.38K | — | $747,902 | 0.0% | n/c | 1 | SEC ↗ |
| 44 | T. Rowe Price ✦ | 41.49K | +21.2% | $157,000 | 0.0% | ▲ Add | 6 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Point72 Asset Management | $1.80M | 0.0% |
Exited
| Marshall Wace | $85,527 | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 170 holders, 69.15M shares, $212.24M reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
What else this security's tracked holders most often hold — shared-ownership counts, not fundamental relationships.
Open-market purchases (P)
Officer, Director · President and CEO · 15.00K sh @ 2.95 · $44,250
Open-market sales (S)
No open-market insider sales in our coverage window.
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology