SION
Sionna Therapeutics, Inc.Company with tickers: SION
CIK
2036042
CUSIP
829401108
Shares Outstanding
44,998,073
Price
Holdings
Short Volume
Short Interest
Fails to Deliver
SEC Filings
Earnings Calls
Insider Trading
Congress Trades
Report Date:
Holders: 100
Total Value: $1,757,686,405
Total Shares: 42,724,513
| Holder | Value (USD) | Shares | Type | Discretion | Filed | Action |
|---|---|---|---|---|---|---|
| RA CAPITAL MANAGEMENT, L.P. | $407,493,551 | 9,905,045 | Shares | Sole | 2026-02-17 | View |
| TPG GP A, LLC | $277,487,736 | 6,744,962 | Shares | Defined | 2026-02-13 | View |
| ORBIMED ADVISORS LLC | $146,526,486 | 3,561,655 | Shares | Sole | 2026-02-17 | View |
| VIKING GLOBAL INVESTORS LP | $131,449,746 | 3,195,181 | Shares | Sole | 2026-02-17 | View |
| Atlas Venture Life Science Advisors, LLC | $123,239,066 | 2,995,602 | Shares | Sole | 2026-02-13 | View |
| Enavate Sciences GP, LLC | $101,946,154 | 2,478,030 | Shares | Sole | 2026-02-17 | View |
| BlackRock, Inc. | $53,136,379 | 1,291,599 | Shares | Sole | 2026-02-12 | View |
| JPMORGAN CHASE & CO | $50,677,031 | 1,231,819 | Shares | Defined | 2026-02-11 | View |
| PERCEPTIVE ADVISORS LLC | $48,508,091 | 1,179,098 | Shares | Sole | 2026-02-17 | View |
| JENNISON ASSOCIATES LLC | $45,882,536 | 1,115,278 | Shares | Defined | 2026-01-30 | View |
| CITADEL ADVISORS LLC | $44,732,550 | 1,087,325 | Shares | Defined | 2026-02-17 | View |
| DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C) | $39,930,072 | 970,590 | Shares | Defined | 2026-02-17 | View |
| Standard Life Aberdeen plc | $34,555,954 | 839,960 | Shares | Defined | 2026-01-16 | View |
| PRICE T ROWE ASSOCIATES INC /MD/ | $34,202,685 | 831,373 | Shares | Sole | 2026-02-17 | View |
| STATE STREET CORP | $28,526,270 | 693,395 | Shares | Defined | 2026-02-13 | View |
| EVENTIDE ASSET MANAGEMENT, LLC | $26,290,311 | 639,045 | Shares | Sole | 2026-02-13 | View |
| BAKER BROS. ADVISORS LP | $16,456,000 | 400,000 | Shares | Sole | 2026-02-17 | View |
| GEODE CAPITAL MANAGEMENT, LLC | $15,634,927 | 380,042 | Shares | Defined | 2026-02-09 | View |
| Siren, L.L.C. | $12,342,000 | 300,000 | Shares | Defined | 2026-02-13 | View |
| Soleus Capital Management, L.P. | $11,046,090 | 268,500 | Shares | Sole | 2026-02-12 | View |
| Kalehua Capital Management LLC | $8,107,542 | 197,072 | Shares | Sole | 2026-02-13 | View |
| SUPERSTRING CAPITAL MANAGEMENT LP | $7,429,596 | 180,593 | Shares | Sole | 2026-02-17 | View |
| FRANKLIN RESOURCES INC | $7,219,370 | 175,483 | Shares | Defined | 2026-02-11 | View |
| Alyeska Investment Group, L.P. | $5,604,173 | 136,222 | Shares | Sole | 2026-02-13 | View |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $5,088,442 | 123,686 | Shares | Sole | 2026-02-13 | View |
| Artia Global Partners LP | $4,926,144 | 119,741 | Shares | Sole | 2026-02-17 | View |
| TD ASSET MANAGEMENT INC | $4,663,301 | 113,352 | Shares | Sole | 2026-02-10 | View |
| NORTHERN TRUST CORP | $4,612,451 | 112,116 | Shares | Other | 2026-02-17 | View |
| Invesco Ltd. | $4,573,203 | 111,162 | Shares | Defined | 2026-02-19 | View |
| AMERIPRISE FINANCIAL INC | $4,181,593 | 101,643 | Shares | Defined | 2026-02-17 | View |
| Rock Springs Capital Management LP | $4,090,509 | 99,429 | Shares | Sole | 2026-02-17 | View |
| UBS Group AG | $3,668,740 | 89,177 | Shares | Defined | 2026-01-29 | View |
| DRIEHAUS CAPITAL MANAGEMENT LLC | $3,449,589 | 83,850 | Shares | Sole | 2026-02-17 | View |
| MILLENNIUM MANAGEMENT LLC | $3,313,662 | 80,546 | Shares | Sole | 2026-02-17 | View |
| Ensign Peak Advisors, Inc | $3,285,522 | 79,862 | Shares | Sole | 2026-02-12 | View |
| Longaeva Partners L.P. | $3,280,051 | 79,729 | Shares | Other | 2026-02-17 | View |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | $2,856,103 | 69,424 | Shares | Defined | 2026-02-13 | View |
| SEVEN GRAND MANAGERS, LLC | $2,057,000 | 50,000 | Shares | Sole | 2026-02-10 | View |
| BARCLAYS PLC | $1,981,796 | 48,172 | Shares | Sole | 2026-02-13 | View |
| BANK OF AMERICA CORP /DE/ | $1,792,345 | 43,567 | Shares | Defined | 2026-02-17 | View |
| SILVERARC CAPITAL MANAGEMENT, LLC | $1,705,664 | 41,460 | Shares | Sole | 2026-02-12 | View |
| WELLINGTON MANAGEMENT GROUP LLP | $1,577,594 | 38,347 | Shares | Defined | 2026-02-17 | View |
| ALPS ADVISORS INC | $1,507,698 | 36,648 | Shares | Defined | 2026-02-12 | View |
| GOLDMAN SACHS GROUP INC | $1,492,106 | 36,269 | Shares | Defined | 2026-02-10 | View |
| Bank of New York Mellon Corp | $1,445,411 | 35,134 | Shares | Defined | 2026-02-10 | View |
| POLEN CAPITAL MANAGEMENT LLC | $1,285,954 | 31,258 | Shares | Sole | 2026-02-12 | View |
| Rafferty Asset Management, LLC | $1,015,746 | 24,690 | Shares | Sole | 2026-02-13 | View |
| Nuveen, LLC | $976,416 | 23,734 | Shares | Defined | 2026-02-12 | View |
| Russell Investments Group, Ltd. | $902,650 | 21,941 | Shares | Defined | 2026-02-17 | View |
| RHUMBLINE ADVISERS | $727,931 | 17,694 | Shares | Sole | 2026-02-13 | View |
| WELLS FARGO & COMPANY/MN | $722,048 | 17,551 | Shares | Defined | 2026-02-13 | View |
| Squarepoint Ops LLC | $673,050 | 16,360 | Shares | Defined | 2026-02-13 | View |
| ALLIANCEBERNSTEIN L.P. | $642,606 | 15,620 | Shares | Defined | 2026-02-17 | View |
| SG Americas Securities, LLC | $439,827 | 10,691 | Shares | Sole | 2026-01-09 | View |
| China Universal Asset Management Co., Ltd. | $422,590 | 10,272 | Shares | Sole | 2026-01-29 | View |
| DEUTSCHE BANK AG\ | $412,592 | 10,029 | Shares | Defined | 2026-02-11 | View |
| PROFUND ADVISORS LLC | $379,022 | 9,213 | Shares | Sole | 2026-02-06 | View |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | $366,762 | 8,915 | Shares | Defined | 2026-02-17 | View |
| MetLife Investment Management, LLC | $352,364 | 8,565 | Shares | Defined | 2026-02-12 | View |
| INTECH INVESTMENT MANAGEMENT LLC | $312,211 | 7,589 | Shares | Sole | 2026-02-10 | View |
| KENNEDY CAPITAL MANAGEMENT, INC. | $277,777 | 6,752 | Shares | Sole | 2026-02-13 | View |
| TWO SIGMA INVESTMENTS, LP | $263,296 | 6,400 | Shares | Sole | 2026-02-17 | View |
| Virtus Investment Advisers, Inc. | $255,890 | 6,220 | Shares | Other | 2026-02-17 | View |
| AMERICAN CENTURY COMPANIES INC | $254,245 | 6,180 | Shares | Defined | 2026-02-13 | View |
| DARK FOREST CAPITAL MANAGEMENT LP | $246,469 | 5,991 | Shares | Sole | 2026-02-17 | View |
| D. E. Shaw & Co., Inc. | $236,225 | 5,742 | Shares | Defined | 2026-02-17 | View |
| VANGUARD GROUP INC | $236,102 | 5,739 | Shares | Defined | 2026-01-29 | View |
| NEW YORK STATE COMMON RETIREMENT FUND | $218,042 | 5,300 | Shares | Sole | 2026-02-12 | View |
| LOS ANGELES CAPITAL MANAGEMENT & EQUITY RESEARCH INC | $213,475 | 5,189 | Shares | Sole | 2026-02-11 | View |
| CITIGROUP INC | $213,310 | 5,185 | Shares | Defined | 2026-02-13 | View |
| MORGAN STANLEY | $210,060 | 5,106 | Shares | Defined | 2026-02-13 | View |
| XTX Topco Ltd | $202,655 | 4,926 | Shares | Defined | 2026-02-17 | View |
| ProShare Advisors LLC | $201,709 | 4,903 | Shares | Sole | 2026-02-06 | View |
| CIBC Private Wealth Group, LLC | $185,130 | 4,500 | Shares | Sole | 2026-02-12 | View |
| Police & Firemen's Retirement System of New Jersey | $174,104 | 4,232 | Shares | Defined | 2026-02-13 | View |
| AlphaCentric Advisors LLC | $111,900 | 2,720 | Shares | Other | 2026-02-12 | View |
| BNP PARIBAS ARBITRAGE, SA | $93,140 | 2,264 | Shares | Defined | 2026-02-10 | View |
| Mirae Asset Global Investments Co., Ltd. | $89,232 | 2,169 | Shares | Sole | 2026-01-26 | View |
| Legal & General Group Plc | $69,197 | 1,682 | Shares | Defined | 2026-02-09 | View |
| Balyasny Asset Management LLC | $57,842 | 1,406 | Shares | Sole | 2026-02-17 | View |
| Ameritas Investment Partners, Inc. | $53,564 | 1,302 | Shares | Other | 2026-02-11 | View |
| Tower Research Capital LLC (TRC) | $46,447 | 1,129 | Shares | Defined | 2026-02-17 | View |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | $40,646 | 988 | Shares | Sole | 2026-02-17 | View |
| GF FUND MANAGEMENT CO. LTD. | $36,038 | 876 | Shares | Sole | 2026-01-27 | View |
| AMALGAMATED BANK | $20,734 | 504 | Shares | Sole | 2026-02-05 | View |
| ROYAL BANK OF CANADA | $20,117 | 489 | Shares | Defined | 2026-02-17 | View |
| FMR LLC | $15,797 | 384 | Shares | Defined | 2026-02-17 | View |
| Farther Finance Advisors, LLC | $7,816 | 190 | Shares | Sole | 2026-01-23 | View |
| GAMMA Investing LLC | $7,281 | 177 | Shares | Defined | 2026-01-05 | View |
| Daiwa Securities Group Inc. | $6,129 | 149 | Shares | Sole | 2026-02-11 | View |
| Sterling Capital Management LLC | $4,319 | 105 | Shares | Sole | 2026-02-13 | View |
| CWM, LLC | $3,291 | 80 | Shares | Sole | 2026-01-26 | View |
| US BANCORP \DE\ | $2,674 | 65 | Shares | Defined | 2026-01-30 | View |
| Rockefeller Capital Management L.P. | $1,974 | 48 | Shares | Defined | 2026-02-17 | View |
| Aster Capital Management (DIFC) Ltd | $1,522 | 37 | Shares | Sole | 2026-02-17 | View |
| Allworth Financial LP | $1,151 | 28 | Shares | Sole | 2026-02-05 | View |
| Hughes Financial Services, LLC | $1,028 | 25 | Shares | Sole | 2026-02-11 | View |
| EverSource Wealth Advisors, LLC | $822 | 20 | Shares | Sole | 2026-02-06 | View |
| PNC Financial Services Group, Inc. | $205 | 5 | Shares | Defined | 2026-02-06 | View |
| ROTHSCHILD INVESTMENT LLC | $41 | 1 | Shares | Sole | 2026-02-10 | View |