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© 2026 InsiderTradingScreener.com. Data from SEC EDGAR Form 4 filings.For informational purposes only. Not financial advice.

Home/Companies/Sionna Therapeutics, Inc.

Sionna Therapeutics, Inc.

241 insider trades tracked

SION

Insider trades

241

Bought (open market)

$63.4M

Sold (open market)

$174.6M

Unique insiders

17

12-month activity

Monthly insider buy vs sell totals for Sionna Therapeutics, Inc..

BuysSells

Recent insider trades

Most recent Form 4 filings for Sionna Therapeutics, Inc..

Thompson Peter A.sold85,918 shares ofSIONat $44.86$3.9MJul 9Details
ORBIMED ADVISORS LLCsold85,918 shares ofSIONat $44.86$3.9MJul 9Details
Fitzpatrick Jennifersold10,250 shares ofSIONat $43.596$447KJul 7Details
Fitzpatrick Jenniferexercised10,250 shares of

Insiders at this company

Executives and directors who have filed Form 4s.

RA CAPITAL MANAGEMENT, L.P.61 trades
Booth Bruce59 trades
Cloonan Michael26 trades
Thompson Peter A.25 trades
ORBIMED ADVISORS LLC24 trades
Ridloff Elena9 trades
Fitzpatrick Jennifer9 trades
Atlas Venture Fund XI, L.P.8 trades

Explore insider screeners

Latest CEO & CFO Purchases Latest CEO & CFO Sales Director Purchases Officer Purchases Top Purchases This Week Top Sales This Week Top Officer Buys (Month)10% Owner Filings 10b5-1 Planned Trades Discretionary Trades Buy/Sell Ratios Politician–Insider Overlap

at $6.11

$63KJul 7Details

Thompson Peter A.sold115,844 shares ofSIONat $45.5$5.3MJul 2Details

ORBIMED ADVISORS LLCsold115,844 shares ofSIONat $45.5$5.3MJul 2Details

Ruddy Marcella K.granted17,340 shares ofSIONat $0Jun 18Details

Fleming Harold Edwardgranted17,340 shares ofSIONat $0Jun 18Details

Viney Joanne L.granted17,340 shares ofSIONat $0Jun 18Details

Resnick Joshuagranted17,340 shares ofSIONat $0Jun 18Details

Stelzer Lauriegranted17,340 shares ofSIONat $0Jun 18Details

Booth Brucegranted17,340 shares ofSIONat $0Jun 18Details

Clancy Paul Jgranted17,340 shares ofSIONat $0Jun 18Details

Thompson Peter A.granted17,340 shares ofSIONat $0Jun 18Details

RA CAPITAL MANAGEMENT, L.P.granted17,340 shares ofSIONat $0Jun 18Details

Thompson Peter A.sold101 shares ofSIONat $44.49$4KMay 29Details

ORBIMED ADVISORS LLCsold101 shares ofSIONat $44.49$4KMay 29Details

Thompson Peter A.sold184,639 shares ofSIONat $46.22$8.5MMay 11Details

ORBIMED ADVISORS LLCsold184,639 shares ofSIONat $46.22$8.5MMay 11Details

Thompson Peter A.sold59,767 shares ofSIONat $44.58$2.7MMay 11Details

ORBIMED ADVISORS LLCsold59,767 shares ofSIONat $44.58$2.7MMay 11Details

Thompson Peter A.sold48,546 shares ofSIONat $44.61$2.2MMay 11Details

ORBIMED ADVISORS LLCsold48,546 shares ofSIONat $44.61$2.2MMay 11Details

Thompson Peter A.sold2,948 shares ofSIONat $44.52$131KApr 21Details

ORBIMED ADVISORS LLCsold2,948 shares ofSIONat $44.52$131KApr 21Details

Thompson Peter A.sold52,397 shares ofSIONat $44.68$2.3MApr 21Details

ORBIMED ADVISORS LLCsold52,397 shares ofSIONat $44.68$2.3MApr 21Details

Thompson Peter A.sold226,906 shares ofSIONat $45.34$10.3MApr 16Details

ORBIMED ADVISORS LLCsold226,906 shares ofSIONat $45.34$10.3MApr 16Details

Thompson Peter A.sold235,863 shares ofSIONat $44.64$10.5MApr 16Details

View all trades for SION →

TPG GP A, LLC

8 trades

McKee Charlotte2 trades

Beer Caroline Stark2 trades

Viney Joanne L.2 trades

Ruddy Marcella K.2 trades

Clancy Paul J1 trades

Stelzer Laurie1 trades

Resnick Joshua1 trades

Fleming Harold Edward1 trades

Sionna Therapeutics, Inc. (SION) — Insider Trading Activity | Insider Trading Screener