Michael Guthrie is CFO at Roblox Corp (RBLX). They have made 37 open-market trades across 2 companies since 2017, most recently 2025-06-05.
CIK 0001607880
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 37 sales. Too few scored purchases to measure a record yet.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| RBLX | SELL · 10b5-1 | 2025-06-05 | 2025-06-09 | $91.55 | $4.6M | +9.8% | +14.7% | +38.2% |
| RBLX | SELL | 2025-05-20 | 2025-05-22 | $80.63 | $3.8M | +13.1% | +28.6% | +47.2% |
| RBLX | SELL · 10b5-1 | 2025-05-12 | 2025-05-14 | $71.77 | $3.6M | +7.1% | +21.9% | +62.4% |
| RBLX | SELL · 10b5-1 | 2025-04-03 | 2025-04-07 | $58.79 | $5.9M | +9.5% | +29.2% | +97.7% |
| RBLX | SELL · 10b5-1 | 2025-03-04 | 2025-03-06 | $60.13 | $6.0M | -3.8% | -9.7% | +56.5% |
| RBLX | SELL · 10b5-1 | 2025-02-24 | 2025-02-26 | $61.14 | $6.1M | -12.2% | -3.6% | +39.5% |
| RBLX | SELL | 2025-02-20 | 2025-02-24 | $61.34 | $2.7M | -3.2% | -0.2% | +41.2% |
| RBLX | SELL | 2025-02-11 | 2025-02-12 | $65.94 | $3.4M | -6.9% | -11.5% | +20.7% |
| RBLX | SELL · 10b5-1 | 2024-12-05 | 2024-12-09 | $55.91 | $11.2M | +3.5% | +9.0% | -5.5% |
| RBLX | SELL · 10b5-1 | 2024-12-02 | 2024-12-04 | $51.36 | $2.1M | +11.8% | +10.1% | +14.1% |
| RBLX | SELL | 2024-11-20 | 2024-11-22 | $51.43 | $2.2M | +20.0% | +20.6% | +27.9% |
| RBLX | SELL · 10b5-1 | 2024-11-15 | 2024-11-19 | $52.07 | $2.1M | -0.2% | +12.7% | +26.4% |
| RBLX | SELL · 10b5-1 | 2024-10-31 | 2024-11-04 | $49.43 | $989K | +5.6% | +9.3% | +41.6% |
| RBLX | SELL · 10b5-1 | 2024-10-07 | 2024-10-09 | $41.50 | $1.2M | -2.5% | +26.7% | +48.2% |
| RBLX | SELL · 10b5-1 | 2024-09-11 | 2024-09-13 | $45.26 | $6.3M | +4.0% | -11.0% | +30.1% |
| RBLX | SELL · 10b5-1 | 2024-09-04 | 2024-09-05 | $43.09 | $1.3M | +2.1% | -7.6% | +21.7% |
| RBLX | SELL | 2024-08-20 | 2024-08-22 | $40.35 | $1.8M | -0.8% | +4.4% | +18.2% |
| RBLX | SELL · 10b5-1 | 2024-08-14 | 2024-08-16 | $38.82 | $1.2M | +8.9% | +14.1% | +30.1% |
| RBLX | SELL · 10b5-1 | 2024-07-05 | 2024-07-08 | $37.82 | $1.1M | -0.3% | -9.3% | +3.7% |
| RBLX | SELL · 10b5-1 | 2024-06-04 | 2024-06-06 | $35.24 | $4.2M | +1.8% | +12.9% | +22.7% |
| RBLX | SELL | 2024-05-21 | 2024-05-22 | $32.56 | $1.4M | +5.8% | +9.3% | +22.5% |
| RBLX | SELL · 10b5-1 | 2024-04-03 | 2024-04-04 | $36.06 | $1.1M | +0.3% | +9.8% | +3.4% |
| RBLX | SELL · 10b5-1 | 2024-03-04 | 2024-03-05 | $40.68 | $1.2M | -1.9% | -8.0% | -13.8% |
| RBLX | SELL | 2024-02-21 | 2024-02-22 | $40.64 | $892K | -7.7% | -13.0% | -21.3% |
| RBLX | SELL | 2023-11-21 | 2023-11-24 | $36.69 | $1.1M | +5.6% | +22.6% | +12.1% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.