Mark Reinstra
CIK 1835037 · Chief Legal Off. & Corp. Sec. · last filed 2026-06-08
Mark Reinstra is a Chief Legal Off. & Corp. Sec. who has filed 62 SEC Form 4 insider transactions across 1 company since 2021. The most recent filing shows the insider sold $249.3K of RBLX on Jun 8, 2026. Across all open-market trades the lifetime net is −$82.6M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $23.7M across reported positions.
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
$23.69M
1
62
-$82.57M
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| RBLX | Chief Legal Off. & Corp. Sec. | 547,032 | $43.31 | $23.69M | -$82.57M | 61 | 2026-06-08 |
Recent Filings
62 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-06-08 | RBLX | Sell (S) | −5,978 | -$249.3K | EDGAR |
| 2026-05-22 | RBLX | Sell (S) | −22,735 | -$1.04M | EDGAR |
| 2026-04-15 | RBLX | Sell (S) | −18,653 | -$1.08M | EDGAR |
| 2026-03-03 | RBLX | Grant (A) | +96,790 | $0 | EDGAR |
| 2026-02-24 | RBLX | Sell (S) | −17,186 | -$1.06M | EDGAR |
| 2026-02-19 | RBLX | Sell (S) | −60,000 | -$3.84M | EDGAR |
| 2026-02-11 | RBLX | Mixed | +83,790 | -$2.49M | EDGAR |
| 2025-11-24 | RBLX | Sell (S) | −16,782 | -$1.60M | EDGAR |
| 2025-11-07 | RBLX | Sell (S) | −2,401 | -$251.1K | EDGAR |
| 2025-09-30 | RBLX | Grant (A) | +16,046 | $0 | EDGAR |