Upstream Bio, Inc. — Institutional Ownership
Which tracked institutions hold UPB, and how they changed the position last quarter. Latest holdings as of Jun 30, 2026. Source: SEC 13-F filings.
18
Funds holding
$51892539
Total value held
Buying
15 added/new · 3 reduced
| # | Institution | Value | Shares | Δ Shares | Change (QoQ) |
|---|---|---|---|---|---|
| 1 | Blackrock, Inc. | $25973237 | 3753358 | +382669 | +11.35% |
| 2 | Jpmorgan Chase & Co | $7013464 | 1012044 | +549043 | +118.58% |
| 3 | State Street Corp | $5302955 | 766323 | +60973 | +8.64% |
| 4 | Morgan Stanley | $3630453 | 524632 | -27977 | -5.06% |
| 5 | Bank Of America Corp /De/ | $2710993 | 391762 | +343302 | +708.42% |
| 6 | Northern Trust Corp | $2057634 | 297346 | +36354 | +13.93% |
| 7 | Goldman Sachs Group Inc | $1708666 | 246917 | -69670 | -22.01% |
| 8 | Ubs Group Ag | $1624221 | 234714 | +234714 | NEW BUY |
| 9 | Bank Of New York Mellon Corp | $593369 | 85747 | +4364 | +5.36% |
| 10 | Invesco Ltd. | $369508 | 53397 | +53397 | NEW BUY |
| 11 | Citigroup Inc | $279145 | 40339 | +33390 | +480.50% |
| 12 | Wells Fargo & Company/Mn | $204119 | 29497 | +11095 | +60.29% |
| 13 | Barclays Plc | $202120 | 29208 | +4488 | +18.16% |
| 14 | Sei Investments Co | $138580 | 20026 | +20026 | NEW BUY |
| 15 | Ameriprise Financial Inc | $72570 | 10487 | +10487 | NEW BUY |
| 16 | Royal Bank Of Canada | $7000 | 1091 | +1091 | NEW BUY |
| 17 | Pnc Financial Services Group, Inc. | $2678 | 387 | +387 | NEW BUY |
| 18 | Us Bancorp \De\ | $1827 | 264 | -326 | -55.25% |
Aggregated across tracked institutional filers. Reported quarterly on SEC Form 13-F and may lag. For research only — not investment advice.