Roblox Corporation
A maker of a global online gaming and creation platform where millions of users play, build, and share their own games and virtual worlds. Players use the virtual currency Robux to buy items and experiences, and creators earn Robux they can trade for real money. It was founded in 2004 by David Baszucki and Erik Cassel, who had earlier built physics-education software together. The name "Roblox" blends "robots" and "blocks," and the platform was nearly called "GoBlocks" or "DynaBlocks" before settling on its final name.
Granted 9.87M · Sold 12.51M
Granted 5.2K · Sold 1.31M
Granted 1.19M · Sold 1.59M
Sold 300.0K
Granted 133.9K · Sold 116.9K
Granted 29.4K · Sold 29.5K
Granted 967.6K · Sold 749.1K
Granted 1.15M · Sold 913.1K
Granted 194.1K · Sold 317.8K
Granted 396.1K · Bought 4 · Sold 730.2K
Granted 429.8K · Sold 66.5K
Granted 192.8K · Sold 227.9K
Sold 10.7K
Granted 94.4K · Sold 113.0K
Granted 47.0K · Sold 11.6K
Sold 20.3K
Granted 29.5K
Granted 8.7K
Granted 17.0K
| Insider | Stake change | Holds now | Granted / vested | Bought | Sold |
|---|---|---|---|---|---|
| Altos Hybrid 2, L.P. +6 co-filers10% owner · 8 transactions | — | 43.04Mas of Nov 2023 | — | — | — |
| Altos Roblox SPV 1, LLC +6 co-filers10% owner · 7 transactions | — | 33.72Mas of Feb 2024 | — | — | — |
| Baszucki DavidPresident & CEO, Director, 10% owner · 373 transactions | -13.3% | 23.49M | 9.87M | — | 12.51M |
| Lee Anthony PDirector · 220 transactions | — | 14.30M | 5.2K | — | 1.31M |
| Baszucki GregoryDirector · 85 transactions | -10% | 12.84M | 1.19M | — | 1.59M |
| Kim Han +4 co-filers10% owner · 4 transactions | — | 9.81Mas of Feb 2024 | — | — | — |
| Kim Han +3 co-filers10% owner · 5 transactions | — | 8.98Mas of Dec 2023 | — | — | — |
| Nam Hodong10% owner · 3 transactions | — | 8.73Mas of May 2024 | — | — | — |
| Kim Han +3 co-filers10% owner · 4 transactions | — | 8.19Mas of Nov 2023 | — | — | — |
| Kim Han10% owner · 3 transactions | +7.4% | 3.66Mas of Nov 2023 | — | — | 300.0K |
| Carvalho ChristopherDirector · 20 transactions | +1.5% | 1.15M | 133.9K | — | 116.9K |
| Sturman DanielChief Technology Officer · 8 transactions | -4.9% | 693.3Kas of May 2024 | 29.4K | — | 29.5K |
| Reinstra MarkChief Legal Off. & Corp. Sec. · 100 transactions | — | 618.7K | 967.6K | — | 749.1K |
| Guthrie MichaelChief Financial Officer · 62 transactions | +88.2% | 603.7Kas of Jun 2025 | 1.15M | — | 913.1K |
| Chakravarthy ArvindChief People & Systems Officer · 37 transactions | — | 555.6K | 194.1K | — | 317.8K |
| Bronstein ManuelChief Product Officer · 43 transactions | -43% | 443.2Kas of Aug 2025 | 396.1K | 4 | 730.2K |
| Chopra Naveen K.Chief Financial Officer · 14 transactions | — | 363.2K | 429.8K | — | 66.5K |
| Kaufman Matthew DChief Safety Officer · 42 transactions | — | 335.1K | 192.8K | — | 227.9K |
| Messing BarbaraCMKtg & Communications Officer · 2 transactions | -4.4% | 234.2Kas of Nov 2023 | — | — | 10.7K |
| Rawlings Amy MarieChief Accounting Officer · 54 transactions | — | 146.8K | 94.4K | — | 113.0K |
| Altos Hybrid 2, L.P. +5 co-filers10% owner · 7 transactions | — | 111.1Kas of Dec 2023 | — | — | — |
| Wong Andrea LDirector · 7 transactions | — | 92.9K | 47.0K | — | 11.6K |
| Buckley Sean JackChief People & Systems Officer · 6 transactions | — | 87.2K | — | — | 20.3K |
| Kilar JasonDirector · 14 transactions | — | 36.2K | 29.5K | — | — |
| Durkin Dennis MDirector · 3 transactions | — | 26.8K | 8.7K | — | — |
| Mastantuono GinaDirector · 15 transactions | -4.7% | 18.3K | 17.0K | — | — |
Select a row to see that insider’s individual transactions. Sum of the holdings confirmed in the 12 months before this insider's last filing. A Form 4 reports a holding per line — held directly, or through a named trust, partnership or foundation, and in each share class separately — never a person’s total. Lines not restated in that time are left out and shown apart: an active filer restates what they still hold, so a line they did not restate is more often an entity since renamed, whose shares a successor line reports too. An amber marker means some were left out.
Net open-market activity over the last 3 years: -19.02M shares. Grants, option exercises and tax withholding are excluded — they are compensation mechanics, not decisions to buy or sell.