Upstream Bio, Inc. — Institutional Ownership
Which tracked institutions hold UPB, and how they changed the position last quarter. Latest holdings as of Mar 31, 2026. Source: SEC 13-F filings.
13
Funds holding
$54001843
Total value held
Buying
8 added/new · 5 reduced
| # | Institution | Value | Shares | Δ Shares | Change (QoQ) |
|---|---|---|---|---|---|
| 1 | Blackrock, Inc. | $30336201 | 3370689 | +26185 | +0.78% |
| 2 | State Street Corp | $6348150 | 705350 | -613876 | -46.53% |
| 3 | Morgan Stanley | $4973481 | 552609 | +430541 | +352.71% |
| 4 | Invesco Ltd. | $4430500 | 163186 | +145996 | +849.31% |
| 5 | Goldman Sachs Group Inc | $2849283 | 316587 | -16894 | -5.07% |
| 6 | Northern Trust Corp | $2348928 | 260992 | +24193 | +10.22% |
| 7 | Wells Fargo & Company/Mn | $998957 | 36794 | +11634 | +46.24% |
| 8 | Bank Of New York Mellon Corp | $732447 | 81383 | -3470 | -4.09% |
| 9 | Bank Of America Corp /De/ | $436140 | 48460 | -37924 | -43.90% |
| 10 | Barclays Plc | $222480 | 24720 | — | NEW BUY |
| 11 | Citigroup Inc | $188665 | 6949 | -35088 | -83.47% |
| 12 | Franklin Resources Inc | $131301 | 14589 | — | NEW BUY |
| 13 | Us Bancorp \De\ | $5310 | 590 | +44 | +8.06% |
Aggregated across tracked institutional filers. Reported quarterly on SEC Form 13-F and may lag. For research only — not investment advice.