SIGA
SIGA Technologies, Inc. · Healthcare · Drug Manufacturers - Specialty & Generic
Momentum inputs (comparable managers):
holder breadth -10.0% ·
share flow -11.1% ·
net new positions -11.1%
— formula
Broad distribution — falling shares and fewer holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q4 2024
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 78 | -1 | 24.92M | $90.83M | +5 | −6 |
| Q1 2026 | 82 | -3 | 24.58M | $131.56M | +6 | −9 |
| Q4 2025 | 84 | 0 | 24.75M | $151.26M | +1 | −1 |
| Q3 2025 | 17 | 0 | 13.40M | $122.59M | +1 | −1 |
| Q2 2025 | 14 | +1 | 11.70M | $76.27M | +1 | — |
| Q1 2025 | 10 | +1 | 5.37M | $29.45M | +1 | — |
| Q4 2024 | 9 | -1 | 5.01M | $30.12M | — | −1 |
| Q3 2024 | 9 | -1 | 4.48M | $30.22M | +1 | −2 |
| Q2 2024 | 10 | — | 3.16M | $24.02M | — | — |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | State Street Global Advisors ✦ (passive) | 1.16M | — | $6.95M | 0.0% | n/c | 1 | SEC ↗ |
| 2 | Geode Capital Management ✦ (passive) | 1.13M | +1.8% | $6.81M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 3 | Citadel Advisors ✦ | 1.05M | -1.6% | $6.32M | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 4 | D. E. Shaw & Co. ✦ | 592.66K | -12.9% | $3.56M | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 5 | Arrowstreet Capital ✦ | 431.77K | -46.5% | $2.59M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 6 | Renaissance Technologies ✦ | 417.44K | +237.7% | $2.51M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 7 | Wellington Management ✦ | 120.22K | +7.2% | $722,553 | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 8 | Millennium Management ✦ | 67.73K | -87.2% | $407,087 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 9 | T. Rowe Price ✦ | 40.01K | +26.1% | $241,000 | 0.0% | ▲ Add | 3 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| No new tracked buyers this quarter. |
Exited
| AQR Capital Management | $89,964 | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 180 holders, 34.09M shares, $176.37M 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.