SIONNA THERAPEUTICS INC COMMON STOCK is a security (CUSIP 829401108) tracked across SEC portfolio filings. 120 institutional managers reported $1.8B on Form 13F as of 2026-06-30; 17 registered fund positions totaling $89.7M via N-PORT as of 2026-05-31.
Showing 15 of 120 managers by value.
| Manager | Location | Value | Shares |
|---|---|---|---|
| RA CAPITAL MANAGEMENT, L.P. | Boston, MA | $397.1M | 9,905,045 |
| TPG GP A, LLC | Fort Worth, TX | $260.4M | 6,494,962 |
| ORBIMED ADVISORS LLC | New York, NY | $141.5M | 3,530,702 |
| VIKING GLOBAL INVESTORS LP | STAMFORD, CT | $128.1M | 3,195,181 |
| Atlas Venture Life Science Advisors, LLC | Cambridge, MA | $120.1M | 2,995,602 |
| ENAVATE SCIENCES GP, LLC | New York, NY | $99.3M | 2,478,030 |
| JPMORGAN CHASE & CO | NEW YORK, NY | $53.7M | 1,465,014 |
| BlackRock, Inc. | New York, NY | $52.0M | 1,295,867 |
| JENNISON ASSOCIATES LLC | NEW YORK, NY | $51.6M | 1,172,133 |
| VANGUARD GROUP INC | Valley Forge, PA | $48.7M | 1,184,951 |
| CITADEL ADVISORS LLC | MIAMI, FL | $46.8M | 1,166,931 |
| DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C) | New York, NY | $38.9M | 970,590 |
| STATE STREET CORP | BOSTON, MA | $30.3M | 756,227 |
| PERCEPTIVE ADVISORS LLC | NEW YORK, NY | $26.4M | 658,439 |
| EVENTIDE ASSET MANAGEMENT, LLC | Boston, MA | $25.9M | 645,530 |
Showing 15 of 17 fund positions by value.
| Fund | Registrant | Value | % of fund |
|---|---|---|---|
| PGIM Jennison Health Sciences Fund | Prudential Sector Funds, Inc. | $27.9M | 200.77% |
| T. Rowe Price Health Sciences Fund, Inc. | T. ROWE PRICE HEALTH SCIENCES FUND, INC. | $21.9M | 20.15% |
| abrdn Healthcare Investors | abrdn Healthcare Investors | $15.9M | 139.67% |
| abrdn Life Sciences Investors | abrdn Life Sciences Investors | $6.7M | 120.13% |
| VANGUARD EXTENDED MARKET INDEX FUND | VANGUARD INDEX FUNDS | $6.4M | 0.78% |
| VANGUARD RUSSELL 2000 INDEX FUND | VANGUARD SCOTTSDALE FUNDS | $3.6M | 2.04% |
| VANGUARD U.S. MOMENTUM FACTOR ETF | VANGUARD WELLINGTON FUND | $2.4M | 12.83% |
| T. Rowe Price Health Sciences Portfolio | T. ROWE PRICE EQUITY SERIES, INC. | $1.4M | 21.60% |
| Master Small Cap Index Series | Quantitative Master Series LLC | $1.1M | 2.26% |
| VANGUARD BALANCED INDEX FUND | VANGUARD VALLEY FORGE FUNDS | $599K | 0.10% |
| Fidelity Nasdaq Composite Index ETF | Fidelity Commonwealth Trust | $593K | 0.54% |
| VANGUARD INSTITUTIONAL TOTAL STOCK MARKET INDEX FUND | VANGUARD INSTITUTIONAL INDEX FUNDS | $482K | 0.16% |
| Russell Investments U.S. Small Cap Equity ETF | Russell Investments Exchange Traded Funds | $268K | 54.32% |
| Goldman Sachs ActiveBeta(R) U.S. Small Cap Equity ETF | Goldman Sachs ETF Trust | $215K | 2.18% |
| Blackstone Alternative Multi-Strategy Fund | Blackstone Alternative Investment Funds | $173K | 0.48% |