UPSTREAM BIO INC COM is a security (CUSIP 91678A107) tracked across SEC portfolio filings. 135 institutional managers reported $434.1M on Form 13F as of 2026-06-30; 17 registered fund positions totaling $12.0M via N-PORT as of 2026-05-31.
Showing 15 of 135 managers by value.
| Manager | Location | Value | Shares |
|---|---|---|---|
| FMR LLC | BOSTON, MA | $72.9M | 8,101,563 |
| VANGUARD GROUP INC | Valley Forge, PA | $64.8M | 2,388,439 |
| ORBIMED ADVISORS LLC | New York, NY | $51.2M | 5,693,589 |
| BlackRock, Inc. | New York, NY | $30.3M | 3,370,689 |
| Decheng Capital LLC | MENLO PARK, CA | $24.5M | 2,724,868 |
| ENAVATE SCIENCES GP, LLC | New York, NY | $22.1M | 2,459,703 |
| FEDERATED HERMES, INC. | Pittsburgh, PA | $8.8M | 979,758 |
| GEODE CAPITAL MANAGEMENT, LLC | BOSTON, MA | $8.6M | 950,617 |
| MILLENNIUM MANAGEMENT LLC | NEW YORK, NY | $8.4M | 937,323 |
| Bain Capital Life Sciences Investors, LLC | Boston, MA | $7.8M | 867,211 |
| Woodline Partners LP | San Francisco, CA | $7.5M | 831,481 |
| D. E. Shaw & Co., Inc. | New York, NY | $7.4M | 820,480 |
| Parkman Healthcare Partners LLC | STAMFORD, CT | $7.1M | 786,783 |
| Samsara BioCapital, LLC | Palo Alto, CA | $6.6M | 736,047 |
| STATE STREET CORP | BOSTON, MA | $6.3M | 705,350 |
Showing 15 of 17 fund positions by value.
| Fund | Registrant | Value | % of fund |
|---|---|---|---|
| Fidelity Advisor Health Care Fund | Fidelity Advisor Series VII | $3.7M | 12.72% |
| VANGUARD EXTENDED MARKET INDEX FUND | VANGUARD INDEX FUNDS | $3.5M | 0.42% |
| VANGUARD RUSSELL 2000 INDEX FUND | VANGUARD SCOTTSDALE FUNDS | $1.4M | 0.80% |
| VANGUARD MARKET NEUTRAL FUND | VANGUARD MONTGOMERY FUNDS | $1.1M | 25.01% |
| BlackRock Health Sciences Term Trust | BlackRock Health Sciences Term Trust | $509K | 5.03% |
| Master Small Cap Index Series | Quantitative Master Series LLC | $495K | 1.03% |
| BlackRock Health Sciences Trust | BlackRock Health Sciences Trust | $270K | 5.08% |
| U.S. MICRO CAP PORTFOLIO | DFA INVESTMENT DIMENSIONS GROUP INC | $258K | 0.34% |
| VANGUARD BALANCED INDEX FUND | VANGUARD VALLEY FORGE FUNDS | $238K | 0.04% |
| VANGUARD GROWTH AND INCOME FUND | VANGUARD QUANTITATIVE FUNDS | $236K | 0.14% |
| Fidelity Disruptive Medicine ETF | Fidelity Covington Trust | $208K | 50.80% |
| VANGUARD INSTITUTIONAL TOTAL STOCK MARKET INDEX FUND | VANGUARD INSTITUTIONAL INDEX FUNDS | $184K | 0.06% |
| DWS Small Cap Index VIP | DEUTSCHE DWS INVESTMENTS VIT FUNDS | $42K | 1.01% |
| Gabelli Healthcare & WellnessRx Trust | Gabelli Healthcare & WellnessRx Trust | $7K | 0.49% |
| TIAA Separate Account VA-1 - Stock Index Account | TIAA Separate Account VA-1 | $5K | 0.04% |