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 →
$810K6,000 sh × $135.02
Exec Oct 2 2025
Filed Oct 6 2025 · 5:30 PM ET RBLXSALE Roblox Corporation View filing → $819K
6,000 sh × $136.55
Exec Sep 18 2025
Filed Sep 22 2025 · 5:30 PM ET RBLXSALE Roblox Corporation View filing → $805K
6,000 sh × $134.20
Exec Sep 4 2025
Filed Sep 8 2025 · 5:30 PM ET RBLXSALE Roblox Corporation View filing → $2.4M
20,208 sh across 5 lots
Exec Aug 20 2025
Filed Aug 22 2025 · 5:30 PM ET RBLXSALE Roblox Corporation View filing → $802K
6,000 sh × $133.67
Exec Aug 7 2025
Filed Aug 8 2025 · 5:30 PM ET RBLXSALE Roblox Corporation View filing → $711K
6,000 sh × $118.51
Exec Jul 17 2025
Filed Jul 21 2025 · 5:30 PM ET RBLXSALE Roblox Corporation View filing → $615K
6,000 sh × $102.58
Exec Jul 3 2025
Filed Jul 8 2025 · 5:30 PM ET RBLXSALE Roblox Corporation View filing → $620K
6,000 sh × $103.35
Exec Jun 20 2025
Filed Jun 24 2025 · 5:30 PM ET More filings →