Insider filing · SION
James G Coulter
Other
profile →
Sionna Therapeutics, Inc.
SION · Healthcare · 44 filings in 24 months
ticker →
James G Coulter bought $950K of Sionna Therapeutics (SION)
Executed Jun 27 2025, disclosed Jul 1 2025, 4 days later.
Value, as filed
$950K
60,000 sh × $15.84
Executed
Jun 27 2025
the trade date, as filed
Disclosed
Jul 1 2025
4 days after the trade
Return, 21 sessionsiFrom the disclosed entry session; derived
+2.7%
+31.0% from execution
Over the 21 trading sessions from the disclosed entry session (Jul 1 2025), the stock returned +2.7% (delay-adjusted); from the execution session (Jun 27 2025), +31.0%. Derived: entry at the session's open, exit at the close 20 sessions later.
The filer
JCJames G Coulter (Other) filed 1 Form 4 report in the trailing twelve months (0 purchases, 1 sale), most often in CeriBell, Inc. (CBLL). The largest single filing was $4.1M of CBLL (202,368 sh × $20.12, as filed), executed Jun 26.
The name
SIONHealthcare · 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→