MK
Insider
Matthew D Kaufman
Chief Safety OfficerMatthew D Kaufman (Chief Safety Officer) filed 10 Form 4 reports in the trailing twelve months (0 purchases, 10 sales), most often in Roblox Corporation (RBLX). The largest single filing was $2.2M of RBLX (30,034 sh across 2 lots, as filed), executed Feb 10.
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
10
0 buys · 10 sells
Median delay
–
execution → disclosure
Volume, ttmiDollar value disclosed in the trailing twelve months
$9.0M
shares × price, as filed
Last traded
Aug 20
Filed Aug 24
Median ADV $464.8M across their filed names
Open performance→Volume by month
Buys $0
Sells $19.1M
Shares × price, as filed · by filing month · past 24 months
Sectors filed on
Communication Services
9 filings
Sector per market data · by filing · past 12 months
Most traded names
RBLXRecent filings
RBLXSALE
Roblox Corporation
View filing →
$566K14,904 sh across 2 lots
Exec Aug 20
Filed Aug 24 · 4:40 PM ET RBLXSALE Roblox Corporation View filing → $579K
12,756 sh × $45.36
Exec May 20
Filed May 22 · 5:30 PM ET RBLXSALE Roblox Corporation View filing → $766K
13,225 sh × $57.94
Exec Apr 13
Filed Apr 15 · 5:30 PM ET RBLXSALE Roblox Corporation View filing → $872K
14,177 sh across 2 lots
Exec Feb 20
Filed Feb 24 · 5:30 PM ET RBLXSALE Roblox Corporation View filing → $2.2M
30,034 sh across 2 lots
Exec Feb 10
Filed Feb 11 · 5:30 PM ET RBLXSALE Roblox Corporation View filing → $1.9M
20,207 sh across 5 lots
Exec Nov 20 2025
Filed Nov 24 2025 · 5:30 PM ET RBLXSALE Roblox Corporation View filing → $609K
6,000 sh × $101.48
Exec Nov 6 2025
Filed Nov 10 2025 · 5:30 PM ET RBLXSALE Roblox Corporation View filing → $678K
6,000 sh × $112.99
Exec Nov 3 2025
Filed Nov 5 2025 · 5:30 PM ET More filings →