UPB
Upstream Bio, Inc. · Healthcare · Biotechnology
Señales de momentum (gestores comparables):
amplitud de titulares +14.3% ·
flujo de acciones -8.5% ·
nuevas posiciones netas +12.5%
— fórmula
Fragmentación de la titularidad — más titulares, participación agregada menor
Todas las cifras de propiedad: únicamente gestores 13F seguidos, posiciones en acciones ordinarias, período de referencia Q1 2025
| Trimestre | Titulares | Δ | Acciones | Valor declarado | Nuevo | Cierres |
|---|---|---|---|---|---|---|
| Q2 2026 | 66 | +3 | 29.87M | $206.85M | +14 | −10 |
| Q1 2026 | 64 | +3 | 24.32M | $219.33M | +14 | −12 |
| Q4 2025 | 62 | +3 | 27.51M | $746.80M | +4 | — |
| Q3 2025 | 14 | +2 | 17.53M | $329.70M | +2 | −1 |
| Q2 2025 | 10 | -1 | 15.87M | $174.20M | +1 | −2 |
| Q1 2025 | 8 | +1 | 3.40M | $20.78M | +3 | −2 |
| Q4 2024 | 7 | +6 | 3.71M | $60.61M | +6 | — |
| # | Gestor | Acciones | Δ acciones | Valor | Su ponderación | Mantenida | ||
|---|---|---|---|---|---|---|---|---|
| 1 | Wellington Management ✦ | 1.31M | -17.0% | $8.03M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 2 | Wellington Management ✦ | 1.31M | -17.0% | $8.03M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 3 | Wellington Management ✦ | 1.31M | -17.0% | $8.03M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 4 | Norges Bank ✦ (pasivo) | 969.92K | -3.0% | $5.94M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 5 | Geode Capital Management ✦ (pasivo) | 410.68K | +13.1% | $2.51M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 6 | Geode Capital Management ✦ (pasivo) | 410.68K | +13.1% | $2.51M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 7 | Marshall Wace ✦ | 304.96K | +4.9% | $1.87M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 8 | Marshall Wace ✦ | 304.96K | +4.9% | $1.87M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 9 | State Street Global Advisors ✦ (pasivo) | 295.59K | +19.6% | $1.81M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 10 | Millennium Management ✦ | 61.80K | Nuevo | $378,192 | 0.0% | New | 1 | SEC ↗ |
| 11 | Two Sigma Investments ✦ | 21.79K | Nuevo | $133,349 | 0.0% | New | 1 | SEC ↗ |
| 12 | AQR Capital Management ✦ | 18.82K | Nuevo | $115,190 | 0.0% | New | 1 | SEC ↗ |
| 13 | AQR Capital Management ✦ | 18.82K | Nuevo | $115,190 | 0.0% | New | 1 | SEC ↗ |
| 14 | AQR Capital Management ✦ | 18.82K | Nuevo | $115,190 | 0.0% | New | 1 | SEC ↗ |
| 15 | AQR Capital Management ✦ | 18.82K | Nuevo | $115,190 | 0.0% | New | 1 | SEC ↗ |
| 16 | AQR Capital Management ✦ | 18.82K | Nuevo | $115,190 | 0.0% | New | 1 | SEC ↗ |
«Su ponderación» = la participación de la posición en el valor de renta variable 13F declarado por ese gestor — la medida de convicción. ✦ = gestor seleccionado.
Nuevos compradores
| Millennium Management | $378,192 | 0.0% |
| Two Sigma Investments | $133,349 | 0.0% |
| AQR Capital Management | $115,190 | 0.0% |
| AQR Capital Management | $115,190 | 0.0% |
| AQR Capital Management | $115,190 | 0.0% |
| AQR Capital Management | $115,190 | 0.0% |
| AQR Capital Management | $115,190 | 0.0% |
Posición cerrada
| Citadel Advisors | $2.96M | era 0.0% |
| Soros Fund Management | $761,994 | era 0.0% |
Contexto de mercado completo: entre TODOS los filers 13F (datos estructurados SEC, Q1 2026): 140 tenedores, 44.42M acciones, $399.81M declarado. Este es un período diferente y anterior al de las cifras del universo rastreado que figuran arriba, y ambos nunca se mezclan.
Qué otros valores suelen tener también los tenedores rastreados de este activo — recuentos de cotenencia, no relaciones fundamentales.