Companies / Sionna Therapeutics, Inc. / Institutional holders

Sionna Therapeutics, Inc.

Institutional holders · 13F as of Mar 31, 2026

Holder	Value ↓	Shares	% of shares
RA Capital Management, L.P.	$397.09M	9,905,045	21.91%
TPG GP A, LLC	$277.49M	6,744,962	14.92%
ORBIMED ADVISORS LLC	$141.55M	3,530,702	7.81%
VIKING GLOBAL INVESTORS LP	$128.09M	3,195,181	7.07%
Atlas Venture Life Science Advisors, LLC	$123.24M	2,995,602	6.63%
Enavate Sciences GP, LLC	$101.95M	2,478,030	5.48%
BlackRock, Inc.	$64.88M	1,474,769	3.26%
JPMORGAN CHASE & CO	$50.68M	1,231,819	2.72%
VANGUARD GROUP INC	$48.75M	1,184,951	2.62%
Jennison Associates LLC	$45.88M	1,115,278	2.47%
STATE STREET CORPORATION	$44.94M	1,021,534	2.26%
Citadel Advisors LLC	$44.73M	1,087,325	2.40%
DEERFIELD MANAGEMENT COMPANY, L.P.	$38.91M	970,590	2.15%
Aberdeen Group plc	$34.56M	839,960	1.86%
Perceptive Advisors LLC	$26.40M	658,439	1.46%
Eventide Asset Management, LLC	$26.29M	639,045	1.41%
Baker Bros. Advisors LP	$16.04M	400,000	0.88%
GEODE CAPITAL MANAGEMENT, LLC	$15.63M	389,872	0.86%
Siren, L.L.C.	$12.34M	300,000	0.66%
Soleus Capital Management, L.P.	$11.05M	268,500	0.59%
Kalehua Capital Management LLC	$8.11M	197,072	0.44%
SUPERSTRING CAPITAL MANAGEMENT LP	$7.43M	180,593	0.40%
Franklin Resources, Inc.	$7.22M	175,483	0.39%
ADAGE CAPITAL PARTNERS GP, L.L.C.	$6.01M	150,000	0.33%
Millennium Management LLC	$5.64M	140,641	0.31%
Alyeska Investment Group, L.P.	$5.60M	136,222	0.30%
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	$5.09M	123,686	0.27%
Artia Global Partners LP	$4.93M	119,741	0.26%
NORTHERN TRUST CORP	$4.61M	112,116	0.25%
Invesco Ltd.	$4.57M	111,162	0.25%
AMERIPRISE FINANCIAL INC	$4.18M	101,643	0.22%
Rock Springs Capital Management LP	$4.09M	99,429	0.22%
UBS Group AG	$3.67M	89,177	0.20%
DRIEHAUS CAPITAL MANAGEMENT LLC	$3.45M	83,850	0.19%
TD ASSET MANAGEMENT INC	$3.33M	82,996	0.18%
Ensign Peak Advisors, Inc	$3.29M	79,862	0.18%
Longaeva Partners L.P.	$3.28M	79,729	0.18%
MANUFACTURERS LIFE INSURANCE COMPANY, THE	$2.87M	69,424	0.15%
DEUTSCHE BANK AG	$2.35M	53,353	0.12%
SEVEN GRAND MANAGERS, LLC	$2.06M	50,000	0.11%
Morgan Stanley	$2.05M	49,876	0.11%
Barclays PLC	$1.98M	48,172	0.11%
BANK OF AMERICA CORP /DE	$1.79M	43,567	0.10%
SilverArc Capital Management, LLC	$1.71M	41,460	0.09%
BNP PARIBAS FINANCIAL MARKETS	$1.63M	40,570	0.09%
Wellington Management Group LLP	$1.58M	38,347	0.08%
THE GOLDMAN SACHS GROUP, INC.	$1.49M	36,269	0.08%
ALPS Advisors, Inc.	$1.47M	36,628	0.08%
Bank of New York Mellon Corp/The	$1.35M	33,778	0.07%
Quadrature Capital Ltd	$1.14M	26,023	0.06%