Security record · archived quarter
ALT
Altimmune, Inc. · Healthcare · Biotechnology
78Tracked holders
0Δ holders
58.31MShares held
$179.46MReported value
+8New positions
−8Exits
Momentum inputs (comparable managers): holder breadth 0.0% · share flow +30.0% · net new positions 0.0% — formula
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q1 2026
Ownership over time
| 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 | — | — |
Who holds it · Q1 2026
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 12.80M | +31.9% | $39.41M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 2 | BlackRock ✦ (passive) | 12.80M | +31.9% | $39.41M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 3 | BlackRock ✦ (passive) | 12.80M | +31.9% | $39.41M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 4 | BlackRock ✦ (passive) | 12.80M | +31.9% | $39.41M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 5 | BlackRock ✦ (passive) | 12.80M | +31.9% | $39.41M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 6 | BlackRock ✦ (passive) | 12.80M | +31.9% | $39.41M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 7 | BlackRock ✦ (passive) | 12.80M | +31.9% | $39.41M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 8 | BlackRock ✦ (passive) | 12.80M | +31.9% | $39.41M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 9 | BlackRock ✦ (passive) | 12.80M | +31.9% | $39.41M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 10 | BlackRock ✦ (passive) | 12.80M | +31.9% | $39.41M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 11 | State Street Global Advisors ✦ (passive) | 7.15M | +39.6% | $22.01M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 12 | Vanguard Capital Management Llc | 5.66M | — | $17.43M | 0.0% | n/c | 1 | SEC ↗ |
| 13 | Marshall Wace ✦ | 4.02M | +335.4% | $12.38M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 14 | Marshall Wace ✦ | 4.02M | +335.4% | $12.38M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 15 | Millennium Management ✦ | 3.26M | +1471.1% | $10.04M | 0.0% | ▲ Add | 8 | SEC ↗ |
| 16 | Geode Capital Management ✦ (passive) | 3.11M | +35.5% | $9.57M | 0.0% | ▲ Add | 8 | SEC ↗ |
| 17 | Geode Capital Management ✦ (passive) | 3.11M | +35.5% | $9.57M | 0.0% | ▲ Add | 8 | SEC ↗ |
| 18 | Alyeska Investment Group, L.P. | 2.64M | New | $8.15M | 0.0% | New | 1 | SEC ↗ |
| 19 | Two Sigma Investments ✦ | 2.48M | +95.8% | $7.64M | 0.0% | ▲ Add | 8 | SEC ↗ |
| 20 | Nuveen, LLC | 2.33M | +87.6% | $7.19M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 21 | Nuveen, LLC | 2.33M | +87.6% | $7.19M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 22 | Nuveen, LLC | 2.33M | +87.6% | $7.19M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 23 | Goldman Sachs Group ✦ | 1.35M | +0.1% | $4.16M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 24 | Goldman Sachs Group ✦ | 1.35M | +0.1% | $4.16M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 25 | Susquehanna International Group, Llp | 1.33M | -3.1% | $4.08M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 26 | Dimensional Fund Advisors Lp | 1.05M | +268.7% | $3.22M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 27 | Dimensional Fund Advisors Lp | 1.05M | +268.7% | $3.22M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 28 | Dimensional Fund Advisors Lp | 1.05M | +268.7% | $3.22M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 29 | Dimensional Fund Advisors Lp | 1.05M | +268.7% | $3.22M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 30 | Northern Trust Corp | 996.72K | +39.2% | $3.07M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 31 | Northern Trust Corp | 996.72K | +39.2% | $3.07M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 32 | Northern Trust Corp | 996.72K | +39.2% | $3.07M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 33 | UBS Group AG | 904.77K | +40.9% | $2.79M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 34 | UBS Group AG | 904.77K | +40.9% | $2.79M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 35 | UBS Group AG | 904.77K | +40.9% | $2.79M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 36 | Morgan Stanley ✦ | 775.26K | -43.0% | $2.39M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 37 | Morgan Stanley ✦ | 775.26K | -43.0% | $2.39M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 38 | Morgan Stanley ✦ | 775.26K | -43.0% | $2.39M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 39 | Morgan Stanley ✦ | 775.26K | -43.0% | $2.39M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 40 | Morgan Stanley ✦ | 775.26K | -43.0% | $2.39M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 41 | Morgan Stanley ✦ | 775.26K | -43.0% | $2.39M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 42 | Morgan Stanley ✦ | 775.26K | -43.0% | $2.39M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 43 | D. E. Shaw & Co. ✦ | 727.00K | -45.9% | $2.24M | 0.0% | ▼ Trim | 8 | SEC ↗ |
| 44 | D. E. Shaw & Co. ✦ | 727.00K | -45.9% | $2.24M | 0.0% | ▼ Trim | 8 | SEC ↗ |
| 45 | Fidelity (FMR) ✦ | 673.96K | +19.5% | $2.08M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 46 | Fidelity (FMR) ✦ | 673.96K | +19.5% | $2.08M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 47 | Point72 Asset Management ✦ | 665.29K | New | $2.05M | 0.0% | New | 1 | SEC ↗ |
| 48 | Schroder Investment Management Group | 667.84K | — | $1.92M | 0.0% | n/c | 1 | SEC ↗ |
| 49 | Bank Of America Corp /De/ | 570.20K | +48.6% | $1.76M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 50 | Bank Of America Corp /De/ | 570.20K | +48.6% | $1.76M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 51 | Citadel Advisors ✦ | 448.87K | -66.5% | $1.38M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 52 | Citadel Advisors ✦ | 448.87K | -66.5% | $1.38M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 53 | Bnp Paribas Financial Markets | 435.08K | +145.4% | $1.34M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 54 | Bank of New York Mellon Corp | 413.50K | +16.7% | $1.27M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 55 | Bank of New York Mellon Corp | 413.50K | +16.7% | $1.27M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 56 | Bank of New York Mellon Corp | 413.50K | +16.7% | $1.27M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 57 | Bank of New York Mellon Corp | 413.50K | +16.7% | $1.27M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 58 | Charles Schwab Investment… | 351.68K | +24.0% | $1.08M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 59 | Wellington Management ✦ | 248.16K | -3.5% | $764,326 | 0.0% | ▼ Trim | 8 | SEC ↗ |
| 60 | Wellington Management ✦ | 248.16K | -3.5% | $764,326 | 0.0% | ▼ Trim | 8 | SEC ↗ |
| 61 | Wellington Management ✦ | 248.16K | -3.5% | $764,326 | 0.0% | ▼ Trim | 8 | SEC ↗ |
| 62 | Baird Financial Group, Inc. | 237.52K | +98.9% | $731,568 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 63 | Invesco Ltd. | 227.86K | +6.1% | $701,799 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 64 | Invesco Ltd. | 227.86K | +6.1% | $701,799 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 65 | Invesco Ltd. | 227.86K | +6.1% | $701,799 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 66 | Barclays Plc | 192.87K | -51.9% | $594,042 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 67 | Barclays Plc | 192.87K | -51.9% | $594,042 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 68 | Barclays Plc | 192.87K | -51.9% | $594,042 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 69 | Commonwealth Equity Services, Llc | 160.37K | -11.6% | $493,950 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 70 | Rhumbline Advisers | 155.67K | +28.1% | $479,456 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 71 | Hsbc Holdings Plc | 154.37K | -41.6% | $476,216 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 72 | Stifel Financial Corp | 134.62K | +9.1% | $414,617 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 73 | Man Group plc | 129.85K | +585.7% | $399,926 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 74 | Grantham, Mayo, Van Otterloo & Co.… | 126.39K | -26.8% | $389,278 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 75 | Deutsche Bank Ag\ | 124.52K | +55.8% | $383,509 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 76 | Deutsche Bank Ag\ | 124.52K | +55.8% | $383,509 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 77 | JPMorgan Chase ✦ | 127.50K | +22.0% | $367,195 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 78 | JPMorgan Chase ✦ | 127.50K | +22.0% | $367,195 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 79 | JPMorgan Chase ✦ | 127.50K | +22.0% | $367,195 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 80 | JPMorgan Chase ✦ | 127.50K | +22.0% | $367,195 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 81 | LPL Financial LLC | 103.76K | +113.4% | $319,568 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 82 | Nomura Asset Management… | 100.00K | 0.0% | $308,000 | 0.0% | Held | 2 | SEC ↗ |
| 83 | Wells Fargo & Company/Mn | 95.91K | -32.1% | $295,394 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 84 | Wells Fargo & Company/Mn | 95.91K | -32.1% | $295,394 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 85 | Wells Fargo & Company/Mn | 95.91K | -32.1% | $295,394 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 86 | T. Rowe Price ✦ | 92.51K | +85.5% | $285,000 | 0.0% | ▲ Add | 8 | SEC ↗ |
| 87 | AQR Capital Management ✦ | 85.45K | +304.1% | $263,198 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 88 | AQR Capital Management ✦ | 85.45K | +304.1% | $263,198 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 89 | AQR Capital Management ✦ | 85.45K | +304.1% | $263,198 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 90 | AQR Capital Management ✦ | 85.45K | +304.1% | $263,198 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 91 | AQR Capital Management ✦ | 85.45K | +304.1% | $263,198 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 92 | Alliancebernstein L.P. | 71.76K | 0.0% | $259,054 | 0.0% | Held | 2 | SEC ↗ |
| 93 | Citigroup Inc | 76.33K | +169.5% | $235,087 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 94 | Citigroup Inc | 76.33K | +169.5% | $235,087 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 95 | MIRAE ASSET GLOBAL ETFS HOLDINGS… | 77.29K | +47.0% | $234,841 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 96 | MIRAE ASSET GLOBAL ETFS HOLDINGS… | 77.29K | +47.0% | $234,841 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 97 | Ameriprise Financial Inc | 71.97K | -2.5% | $221,660 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 98 | Ameriprise Financial Inc | 71.97K | -2.5% | $221,660 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 99 | American Century Companies Inc | 62.91K | New | $193,760 | 0.0% | New | 1 | SEC ↗ |
| 100 | Raymond James Financial Inc | 53.80K | -3.7% | $165,692 | 0.0% | ▼ Trim | 2 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Alyeska Investment Group, L.P. | $8.15M | 0.0% |
| Point72 Asset Management | $2.05M | 0.0% |
| American Century Companies Inc | $193,760 | 0.0% |
Exited
| Jane Street Group, Llc | $6.44M | was 0.0% |
| LMR Partners LLP | $221,293 | was 0.0% |
| Balyasny Asset Management L.P. | $216,993 | was 0.0% |
| Gotham Asset Management | $45,735 | was 0.0% |
| TD Waterhouse Canada Inc. | $12,600 | was 0.0% |
| Zurcher Kantonalbank (Zurich… | $4,061 | was 0.0% |
| Daiwa Securities Group Inc. | $1,000 | was 0.0% |
| Fifth Third Bancorp | $903 | 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.
Frequently co-owned
What else this security's tracked holders most often hold — shared-ownership counts, not fundamental relationships.
Open-market purchases (P)
Aug 13
Durso Jerome Benedict
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
Provenance: Ownership from parsed 13F common-stock positions (tracked universe, comparable sets for changes); insider rows from Forms 3/4/5; stakes from Schedules 13D/13G; every filing links to its original on SEC EDGAR.
Reporting period: Q1 2026 ·
Methodology ·
Get this via the API