Peter A. Thompson sold $5.3M of Sionna Therapeutics (SION)

Executed Jun 30, disclosed Jul 2, 2 days later.

Value, as filed

$5.3M

115,844 sh × $45.50

Executed

Jun 30

the trade date, as filed

Disclosed

Jul 2

2 days after the trade

Return, 21 sessionsiFrom the disclosed entry session; derived

–

purchases only

Returns are measured on stock purchases only.

The filer

Peter A. Thompson Director profile →

Peter A. Thompson (Director) filed 8 Form 4 reports in the trailing twelve months (0 purchases, 8 sales), most often in Sionna Therapeutics, Inc. (SION). The largest single filing was $22.9M of SION (510,583 sh across 3 lots, as filed), executed Apr 14.

The name

SION

Sionna Therapeutics, Inc. SION · Healthcare · 44 filings in 24 months ticker →

Healthcare · Sionna Therapeutics, Inc., a clinical-stage biopharmaceutical company, researches and develops medicines for the treatment of cystic fibros…

More Healthcare filings→ Insider filings, newest first→ View the original filing at www.sec.gov→

Other filings by Peter A. Thompson in SION

SIONSALE Sionna Therapeutics, Inc. $3.9M
85,918 sh × $44.86
Exec Jul 7
Filed Jul 9 · 4:47 PM ET SIONSALE Sionna Therapeutics, Inc. $13.4M
292,952 sh across 3 lots
Exec May 7
Filed May 11 · 5:30 PM ET SIONSALE Sionna Therapeutics, Inc. $2.5M
55,345 sh across 2 lots
Exec Apr 17
Filed Apr 21 · 5:30 PM ET SIONSALE Sionna Therapeutics, Inc. $22.9M
510,583 sh across 3 lots
Exec Apr 14
Filed Apr 16 · 5:30 PM ET SIONSALE Sionna Therapeutics, Inc. $1.3M
29,063 sh × $44.58
Exec Feb 3
Filed Feb 4 · 5:30 PM ET SIONSALE Sionna Therapeutics, Inc. $1.5M
33,356 sh × $44.55
Exec Dec 24 2025
Filed Dec 29 2025 · 5:30 PM ET SIONSALE Sionna Therapeutics, Inc. $4.7M
106,473 sh across 2 lots
Exec Nov 24 2025
Filed Nov 26 2025 · 5:30 PM ET SIONPURCHASE Sionna Therapeutics, Inc. $9.9M
550,000 sh × $18.00
Exec Feb 10 2025
Filed Feb 10 2025 · 5:30 PM ET