Viking Global Investors’s Sionna Therapeutics, Inc. Common Stock SION Stock Holding History

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Shares Change %	Capital Flow	Portfolio Weight	Portfolio Position
2025 Q2	$55.4M	Buy	3,195,181 +242,427	+8%	+$4.21M	0.16%	75
2025 Q1	$30.9M	Buy	+2,952,754	New	+$30.9M	0.1%	80