Kaufman Matthew D
Chief Safety Officer
Kaufman Matthew D has filed 13 SEC Form 4 filings (26 transaction rows) across 1 company, with disclosures dating back to 2025. 12 of those filings fall inside the rolling window. Most recent filing: Aug 24, 2026.
On the most recent filing, Kaufman Matthew D is listed as Chief Safety Officer at Roblox Corp. Inside the rolling window, Kaufman Matthew D reported no open-market purchases and 10 open-market sales totaling $10.0M in RBLX. The largest disclosed transaction in the window is a sale of 30,034 RBLX shares on Feb 10, 2026, worth $2.2M.
Companies traded
Other insiders at RBLX
Insider Buying
$0
reported purchases (SEC code P)
Insider Selling
$10.0M
reported sales (SEC code S)
Companies
1
in the rolling window
| Source | |||||||
|---|---|---|---|---|---|---|---|
| RBLX | Chief Safety Officer | Sale | 14,904 | $566K | Aug 24 | SEC ↗ | |
| RBLX | Chief Safety Officer | Sale | 14,356 | $650K | May 22 | SEC ↗ | |
| RBLX | Chief Safety Officer | Sale | 13,325 | $772K | Apr 15 | SEC ↗ | |
| RBLX | Chief Safety Officer | Sale | 15,227 | $938K | Feb 24 | SEC ↗ | |
| RBLX | Chief Safety Officer | Sale | 30,034 | $2.2M | Feb 11 | SEC ↗ | |
| RBLX | Chief Safety Officer | Sale | 20,867 | $2.0M | Nov 24 | SEC ↗ | |
| RBLX | Chief Safety Officer | Sale | 6,000 | $609K | Nov 10 | SEC ↗ | |
| RBLX | Chief Safety Officer | Sale | 6,000 | $678K | Nov 5 | SEC ↗ | |
| RBLX | Chief Safety Officer | Sale | 6,000 | $810K | Oct 6 | SEC ↗ | |
| RBLX | Chief Safety Officer | Sale | 6,000 | $819K | Sep 22 | SEC ↗ |
Earlier trades
Open-market purchases and sales filed before the rolling 365-day window, kept from the original Form 4 filings.
| Date | Ticker | Type | Value |
|---|---|---|---|
| Sep 4, 2025 | RBLX | Sale | $805K |
Frequently asked questions
How many SEC Form 4 filings has Kaufman Matthew D made?
Kaufman Matthew D has filed 13 SEC Form 4 filings (26 transaction rows) across 1 company since 2025.
Which companies does Kaufman Matthew D trade?
Kaufman Matthew D has filed SEC Form 4 disclosures for 1 company, including RBLX.
When was Kaufman Matthew D's most recent SEC Form 4 filing?
Kaufman Matthew D's most recent SEC Form 4 filing on Tracefour is dated Aug 24, 2026.
What is Kaufman Matthew D's job title?
On the most recent SEC Form 4 filings tracked by Tracefour, Kaufman Matthew D is listed as Chief Safety Officer.
What is Kaufman Matthew D's total buy and sell value in the current window?
Inside the rolling retention window, Kaufman Matthew D bought $0 and sold $10.0M based on SEC Form 4 filings.
What was Kaufman Matthew D's largest disclosed transaction?
The largest disclosed transaction in the current window is a sale of 30,034 RBLX shares on 2026-02-10, worth $2.2M, per SEC Form 4 filings.