Sionna Therapeutics Inc. Major Shareholders & Ownership History
| Major Shareholder Name | Reporting Date | Shares Held | Market Value | Change in Shares | Ownership |
|---|---|---|---|---|---|
| RA CAPITAL MANAGEMENT, L.P. | 08/14/2026 | 9.91 M | $435.72 M | 0.00% | 21.94% |
| TPG GP A, LLC | 08/14/2026 | 6.49 M | $285.71 M | 0.00% | 14.39% |
| VIKING GLOBAL INVESTORS LP | 08/14/2026 | 3.20 M | $140.56 M | 0.00% | 7.08% |
| ATLAS VENTURE LIFE SCIENCE ADVISORS, LLC | 08/13/2026 | 3.00 M | $131.78 M | 0.00% | 6.63% |
| ORBIMED ADVISORS LLC | 08/14/2026 | 2.56 M | $112.43 M | -27.61% | 5.66% |
| ENAVATE SCIENCES GP, LLC | 08/14/2026 | 2.48 M | $109.01 M | 0.00% | 5.49% |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | 08/14/2026 | 1.60 M | $70.38 M | 966.67% | 3.54% |
| JPMORGAN CHASE & CO | 08/12/2026 | 1.49 M | $64.09 M | 1.74% | 3.30% |
| BLACKROCK, INC. | 08/07/2026 | 1.47 M | $64.88 M | 13.81% | 3.27% |
| JENNISON ASSOCIATES LLC | 08/03/2026 | 1.17 M | $51.56 M | -19.23% | 2.60% |
| CITADEL ADVISORS LLC | 09/02/2026 | 1.15 M | $50.48 M | -1.65% | 2.54% |
| VANGUARD CAPITAL MANAGEMENT LLC | 08/13/2026 | 1.13 M | $49.80 M | 9.96% | 2.51% |
| STATE STREET CORP | 08/07/2026 | 1.02 M | $44.94 M | 35.08% | 2.26% |
| PERCEPTIVE ADVISORS LLC | 08/14/2026 | 905.00 K | $39.81 M | 37.45% | 2.00% |
| DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C) | 08/14/2026 | 680.92 K | $29.95 M | -29.85% | 1.51% |
| SIREN, L.L.C. | 08/13/2026 | 610.52 K | $26.86 M | 103.51% | 1.35% |
| PRICE T ROWE ASSOCIATES INC /MD/ | 08/14/2026 | 478.02 K | $21.03 M | -36.80% | 1.06% |
| EVENTIDE ASSET MANAGEMENT, LLC | 08/14/2026 | 474.98 K | $20.89 M | -26.42% | 1.05% |
| GEODE CAPITAL MANAGEMENT, LLC | 08/12/2026 | 457.15 K | $20.11 M | 17.26% | 1.01% |
| BAKER BROS. ADVISORS LP | 08/14/2026 | 400.00 K | $17.60 M | 0.00% | 0.89% |
| CASDIN CAPITAL, LLC | 08/14/2026 | 400.00 K | $17.60 M | 100.00% | 0.89% |
| GOLDMAN SACHS GROUP INC | 08/14/2026 | 388.81 K | $17.10 M | 47.74% | 0.86% |
| DRIEHAUS CAPITAL MANAGEMENT LLC | 08/14/2026 | 385.45 K | $16.96 M | 402.98% | 0.85% |
| FRANKLIN RESOURCES INC | 08/13/2026 | 290.11 K | $12.76 M | 65.32% | 0.64% |
| ABRDN PLC | 07/31/2026 | 284.14 K | $12.50 M | -49.64% | 0.63% |
| FMR LLC | 08/13/2026 | 278.29 K | $12.24 M | 241.90% | 0.62% |
| MILLENNIUM MANAGEMENT LLC | 08/14/2026 | 276.73 K | $12.17 M | 96.77% | 0.61% |
| CANDRIAM S.C.A. | 08/13/2026 | 233.21 K | $10.25 M | -1.52% | 0.52% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 08/13/2026 | 222.95 K | $9.81 M | 56.92% | 0.49% |
| KALEHUA CAPITAL MANAGEMENT LLC | 08/19/2026 | 197.07 K | $8.67 M | 0.00% | 0.44% |
| LONGAEVA PARTNERS L.P. | 08/14/2026 | 196.35 K | $8.64 M | 1,446.93% | 0.43% |
| ARTISAN PARTNERS LIMITED PARTNERSHIP | 08/13/2026 | 189.50 K | $8.34 M | 100.00% | 0.42% |
| ENSIGN PEAK ADVISORS, INC | 08/14/2026 | 184.53 K | $8.12 M | -27.81% | 0.41% |
| SOLEUS CAPITAL MANAGEMENT, L.P. | 08/11/2026 | 177.69 K | $7.82 M | -39.46% | 0.39% |
| NORTHERN TRUST CORP | 08/13/2026 | 154.48 K | $6.80 M | 32.28% | 0.34% |
| MORGAN STANLEY | 08/13/2026 | 151.05 K | $6.64 M | 13.55% | 0.33% |
| SOFINNOVA INVESTMENTS, INC. | 08/14/2026 | 144.43 K | $6.35 M | 100.00% | 0.32% |
| QUBE RESEARCH & TECHNOLOGIES LTD | 08/14/2026 | 140.31 K | $6.17 M | 232.16% | 0.31% |
| ALYESKA INVESTMENT GROUP, L.P. | 08/14/2026 | 136.22 K | $5.99 M | 0.00% | 0.30% |
| GORDONMD GLOBAL INVESTMENTS LP | 08/14/2026 | 136.00 K | $5.98 M | 0.00% | 0.30% |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 08/14/2026 | 129.75 K | $5.71 M | 7.90% | 0.29% |
| SIXTH STREET PARTNERS MANAGEMENT COMPANY, L.P. | 08/14/2026 | 129.75 K | $5.71 M | 100.00% | 0.29% |
| SIO CAPITAL MANAGEMENT, LLC | 08/14/2026 | 127.81 K | $5.62 M | -56.58% | 0.28% |
| ISHARA INVESTMENTS LP | 08/14/2026 | 123.00 K | $1.35 M | 150.00% | 0.27% |
| VANGUARD FIDUCIARY TRUST CO | 08/13/2026 | 121.44 K | $5.34 M | 8.26% | 0.27% |
| ARTIA GLOBAL PARTNERS LP | 08/14/2026 | 119.74 K | $5.27 M | 0.00% | 0.27% |
| UBS GROUP AG | 08/13/2026 | 116.21 K | $5.11 M | -21.29% | 0.26% |
| FIRST TURN MANAGEMENT, LLC | 08/14/2026 | 110.49 K | $4.86 M | 100.00% | 0.24% |
| CITIGROUP INC | 08/03/2026 | 110.16 K | $4.85 M | 510.05% | 0.24% |
| IKARIAN CAPITAL, LLC | 08/14/2026 | 107.50 K | $4.73 M | 100.00% | 0.24% |
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Sionna Therapeutics Inc. institutional Ownership - FAQ's
During the previous two years, 161 institutional investors and hedge funds held shares of Sionna Therapeutics Inc.. The most heavily invested institutionals were:
RA CAPITAL MANAGEMENT, L.P.: 9.91 M
TPG GP A, LLC: 6.49 M
VIKING GLOBAL INVESTORS LP: 3.2 M
Atlas Venture Life Science Advisors, LLC: 3 M
ORBIMED ADVISORS LLC: 2.56 M
Enavate Sciences GP, LLC: 2.48 M
106.79% of Sionna Therapeutics Inc. stock is owned by institutional investors.
Institutional investors have bought a total of 49.40 M shares in the last 24 months. This purchase volume represents approximately $1.85 B in transactions.