Cubist Systematic Strategies, LLC's ownership history for RBRK

Cubist Systematic Strategies, LLC currently holds 713 shares with a market value of $58.6K. It started holding RBRK on 2024-12-31. At its peak, it held 273.0K shares on 2025-03-31. Its highest holding value was $16.6M on 2025-03-31. At its lowest, it held 713 shares on 2025-09-30, with a value of $58.6K on 2025-09-30. In the recent 180 days, Cubist Systematic Strategies, LLC has decreased its shares by 272.3K.

It has also owned 142 contracts of calls, with the market value of the underlying securities totaling $1.2M on 2024-12-31. At its peak, it held 1.1K contracts of calls on 2025-06-30 and it owned calls with the market value of the underlying securities totaling $9.6M on 2025-06-30. At its lowest, it held 142 contracts of calls on 2025-09-30 and it owned calls with the market value of the underlying securities totaling $1.2M on 2025-09-30. In the recent 180 days, Cubist Systematic Strategies, LLC has decreased its holdings by 880 contracts.

It has also owned 222 contracts of puts, with the market value of the underlying securities totaling $1.8M on 2024-12-31. At its peak, it held 1.2K contracts of puts on 2025-06-30 and it owned puts with the market value of the underlying securities totaling $11.2M on 2025-06-30. At its lowest, it held 222 contracts of puts on 2025-09-30 and it owned puts with the market value of the underlying securities totaling $1.8M on 2025-09-30. In the recent 180 days, Cubist Systematic Strategies, LLC has decreased its holdings by 878 contracts.