Insider Buying and Selling - Ridloff Elena - Insider Drift

Sionna Therapeutics, Inc. - SION

CFO

CFO & Head of Corp. Dev.

Direct Buys

0

$0

0 Shares

Direct Sells

7

($1.97) M

-85,000 Shares

Indirect Buys

0

$0

0 Shares

Indirect Sells

0

$0

0 Shares

Monthly Values

Transaction	Filed	Type	Shares @ Price	Value	Balance ( Change % )	Ownership
09/02/2025 10b5-1	09/03/2025	Sell	-8,836 @ $25.08	($221,607)	38,532 (-18.65%)	Direct
08/29/2025 10b5-1	09/03/2025	Sell	-748 @ $25.18	($18,835)	47,368 (-1.55%)	Direct
08/28/2025 10b5-1	08/28/2025	Sell	-16,098 @ $25.97	($418,065)	48,116 (-25.07%)	Direct
08/27/2025 10b5-1	08/28/2025	Sell	-3,618 @ $25.10	($90,812)	64,214 (-5.33%)	Direct
08/26/2025 10b5-1	08/28/2025	Sell	-3,700 @ $25.13	($92,981)	67,832 (-5.17%)	Direct
08/20/2025 10b5-1	08/21/2025	Sell	-17,500 @ $22.69	($397,075)	71,532 (-19.66%)	Direct
08/19/2025 10b5-1	08/21/2025	Sell	-34,500 @ $21.08	($727,260)	89,032 (-27.93%)	Direct