Insider filing · SION

Bruce Booth sold $9.1M of Sionna Therapeutics (SION)

Executed Oct 16 2025, disclosed Oct 20 2025, 4 days later.

Returns are measured on stock purchases only.

BB Bruce Booth Director profile →

Bruce Booth (Director) filed 16 Form 4 reports in the trailing twelve months (0 purchases, 16 sales, 1 filed past the two-business-day deadline), most often in Kymera Therapeutics, Inc. (KYMR). The largest single filing was $56.3M of KYMR (511,764 sh across 27 lots, as filed), executed Jun 26.

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→