MC
Michael Cloonan (President & CEO) filed 5 Form 4 reports in the past 24 months (0 purchases, 5 sales), most often in Sionna Therapeutics, Inc. (SION). The largest single filing was $3.6M of SION (99,800 sh across 4 lots, as filed), executed Oct 21 2025. Data as of Nov 8 2026.
Add to watchlistReturn, ttmiAverage return per filing, trailing twelve months
–
no purchases on file
Delay-adjustediThe same average, entered at disclosure dates
–
returns measure stock purchases only
Filings, ttm
5
0 buys · 5 sells
Median delay
–
measured on stock purchases
Volume, ttmiDollar value disclosed in the trailing twelve months
$6.3M
shares × price, as filed
Last traded
Oct 21 2025
Filed Oct 22 2025
Median ADV $10.0M across their filed names
Open performance→Volume by month
Buys $0
Sells $6.3M
Shares × price, as filed · by filing month · past 24 months
Sectors filed on
Healthcare
5 filings
Sector per market data · by filing · past 24 months
Most traded names
SIONRecent filings
SIONSALE
Sionna Therapeutics, Inc.
View filing →
$3.6M99,800 sh across 4 lots
Exec Oct 21 2025
Filed Oct 22 2025 · 5:30 PM ET SIONSALE Sionna Therapeutics, Inc. View filing → $781K
25,000 sh across 2 lots
Exec Oct 15 2025
Filed Oct 17 2025 · 5:30 PM ET SIONSALE Sionna Therapeutics, Inc. View filing → $728K
25,000 sh across 2 lots
Exec Sep 26 2025
Filed Sep 30 2025 · 5:30 PM ET SIONSALE Sionna Therapeutics, Inc. View filing → $624K
25,000 sh across 2 lots
Exec Aug 26 2025
Filed Aug 28 2025 · 5:30 PM ET SIONSALE Sionna Therapeutics, Inc. View filing → $569K
25,000 sh × $22.75
Exec Aug 20 2025
Filed Aug 21 2025 · 5:30 PM ET