Paydirt
AC
Insider

Alexander Cumbo

President and CEO

Alexander Cumbo (President and CEO) filed 2 Form 4 reports in the trailing twelve months (0 purchases, 2 sales), most often in SLDB. The largest single filing was $517K of SLDB (80,258 sh × $6.44, as filed), executed Feb 2. Data as of Nov 8 2026.

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Return, 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
2
0 buys · 2 sells
Median delay
–
measured on stock purchases
Volume, ttmiDollar value disclosed in the trailing twelve months
$832K
shares × price, as filed
Last traded
Feb 4
Filed Feb 6
Open performance→
Volume by month
$832K$416K$0Dec 2024Jun 2025Dec 2025Jun 2026Feb 2026 · sells $832K
Buys $0 Sells $832K

Shares × price, as filed · by filing month · past 24 months

Most traded names
SLDB SLDB 0 buys · 2 sells 2 filings
Recent filings
SLDBSALE Solid Biosciences Inc. View filing → $315K
48,913 sh × $6.44
Exec Feb 4
Filed Feb 6 · 5:30 PM ET SLDBSALE Solid Biosciences Inc. View filing → $517K
80,258 sh × $6.44
Exec Feb 2
Filed Feb 2 · 5:30 PM ET