144 0001834990 XXXXXXXX LIVE 0001315098 Roblox Corporation 001-39763 3150 South Delaware Street San Mateo CA 94403 8888582569 GREG AND CHRISTINA BASZUCKI LIV TRUST Director Common Morgan Stanley Smith Barney LLC Executive Financial Services

1 New York Plaza 8th Floor New York NY 10004

26000 1718600.00 607546629 01/22/2025 NYSE Common 04/09/2020 Founders Shares Issuer N 26000 04/09/2020 N/A N 10b5-1 Sales Plan for Greg & Christina Baszucki Living Trust

3150 South Delaware Street San Mateo CA 94403

Common 12/26/2024 26000 1552183.10 10b5-1 Sales Plan for Greg & Christina Baszucki Living Trust

3150 South Delaware Street San Mateo CA 94403

Common 11/27/2024 26000 1293627.40 Greg & Christina Baszucki Living Trust

3150 South Delaware Street San Mateo CA 94403

Common 11/05/2024 64765 0.00 10b5-1 Sales Plan for Greg & Christina Baszucki Living Trust

3150 South Delaware Street San Mateo CA 94403

Common 10/31/2024 117000 5850070.20 10b5-1 Sales Plan for Greg & Christina Baszucki Living Trust

3150 South Delaware Street San Mateo CA 94403

Common 10/23/2024 13000 539047.60 01/22/2025 11/28/2023 /s/ Gregory Baszucki