SIGA
Supplies oral and IV TPOXX for smallpox preparedness programs.
$3.09
After-hours close+0.02 (+0.65%)
At close$3.07(+0.33%)
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Breakdown13F · Form 4
Institutions 47.95%34.39M sharesInsiders 1.80%1.29M sharesOther 50.25%36.04M shares
Shares outstanding 71.72M · Float 41.01M · 57.2% free float
Institutions13F, as of Mar 31, 2026
182 holders · 34.39M shares · 26 new positions · 93 increased · 68 reduced · 44 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| BlackRock, Inc. | 3.49M | 4.87% | −95.1K | May 13, 2026 |
| Dimensional Fund Advisors LP | 2.70M | 3.77% | +165.9K | May 7, 2026 |
| Altravue Capital, LLC | 2.43M | 3.39% | +23.2K | May 13, 2026 |
| Vanguard Capital Management LLC | 1.71M | 2.39% | +1.71Mnew | May 15, 2026 |
| Arrowstreet Capital, Limited Partnership | 1.53M | 2.13% | +500.9K | May 14, 2026 |
| American Century Companies Inc | 1.32M | 1.84% | +152.3K | May 15, 2026 |
| Geode Capital Management, LLC | 1.32M | 1.83% | +310.8K | May 15, 2026 |
| AQR Capital Management LLC | 1.22M | 1.70% | +346.9K | May 15, 2026 |
Beneficial owners13D/G · 5% or more, as filed
No 13D/G filer at 5% or more on record.
InsidersForm 4
| Insider | Role | Shares | % outstanding | Filed |
|---|---|---|---|---|
| Daniel J. Luckshire | officer: Executive VP & CFO | 280.5K | 0.39% | Mar 17, 2026 |
| Joseph W. III Marshall | director | 246.5K | 0.34% | Jun 10, 2026 |
| Dennis E. Hruby | officer: EVP & Chief Scientific Officer | 198.5K | 0.28% | Mar 17, 2026 |
| Diem Nguyen | director, officer: Chief Executive Officer | 138.8K | 0.19% | Mar 17, 2026 |
| Jaymie A. Durnan | director | 88.8K | 0.12% | Jun 10, 2026 |
| Gary J. Nabel | director | 73.8K | 0.10% | Jun 10, 2026 |
| Julian Nemirovsky | director | 73.8K | 0.10% | Jun 10, 2026 |
| Holly L. Phillips | director | 73.8K | 0.10% | Jun 10, 2026 |
| Larry R. Miller | officer: General Counsel | 51.9K | 0.07% | Mar 26, 2026 |
| Harold Eugene Jr. Ford | director | 47.5K | 0.07% | Jun 10, 2026 |
9 ten-percent owners hold 6.34M shares by Form 4, outside the officers-and-directors figure above · 18 people have not refiled in the last 18 months (26.18M shares), so they are not in the figure above
Latest trades
No open-market trades in the last 12 months.
CongressHouse and Senate disclosures
Not reported.