BBA
SION

Baker Bros. Advisors’s Sionna Therapeutics, Inc. Common Stock SION Stock Holding History

Baker Bros. Advisors’s Portfolio SION Stock Details SION Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Shares
Change % 		Capital Flow Portfolio Weight Portfolio Position
2025
Q2 		$6.94M Hold
400,000
– – 0.07% 60
2025
Q1 		$4.18M Buy
+400,000
New +$4.18M 0.05% 62