Cross-fund · 5 holders
UPB
UPSTREAM BIO INC
CUSIP 91678A107
5
Tracked holders
$106.0M
Aggregate value
6,964,619
Shares
5
Active funds
Funds holding UPB
| Fund | Strategy | Period | Value | % of book | Δ shares | Status |
|---|---|---|---|---|---|---|
| Vanguard | Institutional | Q4 2025 | $64.8M | — | -54,112 | -2.2% |
| BlackRock | Institutional | Q1 2026 | $30.3M | — | +26,185 | +0.8% |
| Millennium | Multi-Strategy | Q1 2026 | $8.4M | — | +420,059 | +81.2% |
| Point72FEAT | Multi-Strategy | Q1 2026 | $1.7M | — | +179,968 | +1855.3% |
| Citadel | Multi-Strategy | Q1 2026 | $706,500 | — | +55,080 | +235.2% |
Aggregated from the latest 13F-HR per tracked fund (longs only). QoQ deltas compare against each fund's prior quarterly filing.