David Baszucki is CEO & President at Roblox Corp (RBLX). They have made 25 open-market trades across 1 company since 2021, most recently 2026-08-20.
CIK 0001834991
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
0 open-market purchases, against 25 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| RBLX | 799,646 | $39.6M |
Shares reported on the most recent Form 4, priced at the 2026-08-24 close.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 33% | 42% | 55% |
| Avg Move | +3.9% | +4.4% | -2.0% |
| Scored | 12 | 12 | 11 |
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| RBLX | SELL | 2026-08-20 | 2026-08-24 | $37.96 | $2.0M | +7.0% | +26.4% | — |
| RBLX | SELL | 2026-05-20 | 2026-05-22 | $45.28 | $2.3M | -9.9% | -1.6% | -19.6% |
| RBLX | SELL | 2026-02-20 | 2026-02-24 | $61.63 | $668K | -5.2% | -19.6% | -31.3% |
| RBLX | SELL | 2026-02-10 | 2026-02-11 | $72.66 | $19.8M | -1.8% | -17.4% | -39.2% |
| RBLX | SELL | 2026-01-07 | 2026-01-09 | $76.48 | $5.1M | +2.3% | +0.5% | -24.5% |
| RBLX | SELL · 10b5-1 | 2025-12-18 | 2025-12-19 | $84.72 | $11.3M | -1.8% | -4.3% | -30.2% |
| RBLX | SELL | 2025-11-20 | 2025-11-24 | $95.04 | $1.8M | +7.3% | -8.8% | -30.4% |
| RBLX | SELL · 10b5-1 | 2025-11-11 | 2025-11-13 | $104.53 | $14.0M | -8.1% | -12.2% | -30.4% |
| RBLX | SELL | 2025-08-20 | 2025-08-22 | $117.65 | $1.9M | +5.3% | +11.1% | -25.6% |
| RBLX | SELL | 2025-08-05 | 2025-08-07 | $126.72 | $111K | -9.6% | -1.8% | -21.9% |
| RBLX | SELL · 10b5-1 | 2025-06-26 | 2025-06-30 | $105.19 | $35.2M | +1.0% | +19.4% | +35.3% |
| RBLX | SELL · 10b5-1 | 2025-06-24 | 2025-06-26 | $105.13 | $60.7M | +1.6% | +15.2% | +26.8% |
| RBLX | SELL · 10b5-1 | 2025-06-17 | 2025-06-20 | $100.61 | $126.5M | +0.4% | +22.1% | +32.9% |
| RBLX | SELL · 10b5-1 | 2025-06-16 | 2025-06-18 | $100.50 | $59.9M | -2.5% | +20.6% | +31.6% |
| RBLX | SELL · 10b5-1 | 2025-06-11 | 2025-06-13 | $95.97 | $15.9M | +6.8% | +13.7% | +35.2% |
| RBLX | SELL · 10b5-1 | 2025-06-05 | 2025-06-09 | $94.59 | $265.7M | +9.8% | +14.7% | +38.2% |
| RBLX | SELL · 10b5-1 | 2025-06-02 | 2025-06-04 | $87.97 | $167.1M | +9.2% | +17.1% | +39.6% |
| RBLX | SELL | 2025-05-20 | 2025-05-22 | $80.66 | $1.7M | +13.1% | +28.6% | +47.2% |
| RBLX | SELL · 10b5-1 | 2025-05-13 | 2025-05-16 | $75.28 | $73.8M | +7.2% | +26.9% | +58.3% |
| RBLX | SELL · 10b5-1 | 2025-05-12 | 2025-05-14 | $74.44 | $24.3M | +7.1% | +21.9% | +62.4% |
| RBLX | SELL · 10b5-1 | 2025-05-05 | 2025-05-07 | $72.12 | $223.4M | +14.6% | +35.2% | +79.4% |
| RBLX | SELL · 10b5-1 | 2025-04-07 | 2025-04-09 | $52.46 | $31.4M | +8.8% | +25.9% | +83.8% |
| RBLX | SELL · 10b5-1 | 2025-03-17 | 2025-03-19 | $57.05 | $4.7M | +1.0% | +3.8% | +75.1% |
| RBLX | SELL · 10b5-1 | 2025-03-03 | 2025-08-05 | $64.94 | $941K | -7.5% | +2.3% | -15.1% |
| RBLX | SELL · 10b5-1 | 2025-03-03 | 2025-03-05 | $64.94 | $33.2M | -8.2% | -14.6% | +45.0% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.