SIONNA THERAPEUTICS INC

Ticker: SION CUSIP: 829401108 Class: Common Stock

PRICE T ROWE ASSOCIATES INC /MD/'s Holding History (CIK: 0000080255)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 831,373 Value ($000) $34 Avg Close $37.92 Range $24.65 - $45.00

Q3 2025

Shares 637,760 Value ($000) $19 Avg Close $21.76 Range $16.14 - $30.61

Q2 2025

Shares 861,238 Value ($000) $15 Avg Close $13.10 Range $7.25 - $18.85

Q1 2025

Shares 996,212 Value ($000) $10 Avg Close $16.34 Range $10.27 - $25.19

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	831,373	$34	$37.92	$24.65 - $45.00
Q3 2025	637,760	$19	$21.76	$16.14 - $30.61
Q2 2025	861,238	$15	$13.10	$7.25 - $18.85
Q1 2025	996,212	$10	$16.34	$10.27 - $25.19