Sionna Therapeutics

SION

46.5502.58% ( +1.170 )

Closed: Jul 28, 16:00:00 (EDT)

SION

46.5502.58% ( +1.170 )

Closed: Jul 28, 16:00:00 (EDT)

Major Shareholders Latest
Shareholder
RA Capital Management, L.P.	22.31%	10.07M	0.33%	+166.67K	04/21/2026
TPG Capital, L.P.	14.81%	6.68M	0.40%	+190.00K	04/21/2026
Atlas Venture Advisors, Inc.	6.83%	3.08M	0.19%	+88.88K	04/21/2026
Viking Global Investors LP	6.54%	2.95M	0.55%	-242.43K	04/21/2026
Enavate Sciences	5.49%	2.48M	0.05%	+0	03/31/2026
OrbiMed Advisors LLC	5.47%	2.47M	2.36%	-1.06M	07/07/2026
Qatar Holding LLC	4.47%	2.02M	0.47%	-189.52K	03/31/2026
Jennison Associates LLC	3.21%	1.45M	0.72%	+335.94K	03/31/2026
JP Morgan Asset Management	3.18%	1.43M	0.51%	+241.21K	03/31/2026
BlackRock, Inc.	2.87%	1.30M	0.02%	+4.27K	03/31/2026
Citadel Advisors LLC	2.58%	1.17M	0.15%	+79.61K	03/31/2026
Vanguard Capital Management, LLC	2.28%	1.03M	--	+1.03M	03/31/2026
Deerfield Management Company, L.P.	2.15%	970.59K	0.02%	+0	03/31/2026
T. Rowe Price Group, Inc.	1.68%	756.38K	0.18%	-75.00K	03/31/2026
State Street Global Advisors, Inc.	1.67%	756.23K	0.12%	+62.83K	03/31/2026
Perceptive Advisors LLC	1.46%	658.44K	1.18%	-520.66K	03/31/2026
Eventide Asset Management, LLC	1.43%	645.53K	<0.01%	+6.49K	03/31/2026
Aberdeen Group Plc	1.25%	564.18K	0.63%	-275.79K	03/31/2026
Michael CloonanPresident, CEO & Director	1.21%	547.34K	<0.01%	+0	04/21/2026
Baker Bros. Advisors LP	0.89%	400.00K	<0.01%	+0	03/31/2026

All Shareholders