$9.18
-0.01 (-0.16%)
Market Cap
$506.1M
Shares Outstanding
54,419,986
Institutional Holders
78
Total Inst. Value
$259.8M
% of Float Held
227.2%
QoQ Holder Change
—
Institutional data as of Q1 2025
Top 10 Institutional Holders(Q1 2025)
| # | Fund | Value | Shares |
|---|---|---|---|
| 1 | FMR LLC | $44.4M | 7,255,859 |
| 2 | ORBIMED ADVISORS LLC | $34.8M | 5,693,589 |
| 3 | Decheng Capital LLC | $20.1M | 3,285,293 |
| 4 | TCG Crossover Management, LLC | $17.1M | 2,801,763 |
| 5 | Enavate Sciences GP, LLC | $15.1M | 2,459,703 |
| 6 | Deep Track Capital, LP | $14.1M | 2,299,567 |
| 7 | Bain Capital Life Sciences Investors, LLC | $14.0M | 2,295,322 |
| 8 | VR Adviser, LLC | $14.0M | 2,295,319 |
| 9 | Samsara BioCapital, LLC | $12.7M | 2,067,146 |
| 10 | Omega Fund Management, LLC | $12.5M | 2,036,293 |
Biggest Buyers & Sellers This Quarter
Top Buyers
| Fund | Shares Added | Value |
|---|---|---|
| FMR LLC | +80K | $44.4M |
| Deep Track Capital, LP | +1.3M | $14.1M |
| BlackRock, Inc. | +68K | $7.3M |
| Woodline Partners LP | +31K | $3.4M |
| GEODE CAPITAL MANAGEMENT, LLC | +47K | $2.5M |
Top Sellers
| Fund | Shares Removed | Value |
|---|---|---|
| WELLINGTON MANAGEMENT GROUP LLP | -270K | $8.0M |
| Samsara BioCapital, LLC | -150K | $12.7M |
| JPMORGAN CHASE & CO | -33K | $92K |
| UBS Group AG | -30K | $805K |
| Lynx1 Capital Management LP | -21K | $1.3M |
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Frequently Asked Questions
How many institutional investors hold UPB?
As of Q1 2025, 78 institutional investors report holding UPB (Upstream Bio, Inc.) in their 13F filings.
What percentage of Upstream Bio, Inc. is owned by institutions?
Institutional investors hold approximately 227.2% of Upstream Bio, Inc.'s float as reported in SEC 13F filings.
Which hedge fund owns the most UPB?
The largest institutional holder of UPB is FMR LLC with $44.4M in shares.
Are institutions buying or selling UPB?
This quarter, 26 institutions opened new positions in UPB and 15 closed their positions.
What is 13F institutional ownership?
SEC Form 13F is a quarterly report filed by institutional investment managers with over $100M in qualifying assets. It discloses their US equity holdings, providing transparency into what the largest investors are buying and selling.
How often is institutional ownership data updated?
13F filings are due 45 days after each calendar quarter end (May 15, Aug 14, Nov 14, Feb 14). Data is updated on HedgeTrace as new filings are processed.