Compared with the stalling airspeed (VS) in a given configuration, the airspeed that triggers the stick shaker is:

The airspeed that triggers the stick shaker is indeed greater than the stalling airspeed (VS) in a given configuration. The primary purpose of the stick shaker is to provide an early warning to the pilot that the aircraft is approaching an aerodynamic stall. By activating at a speed higher than VS, the stick shaker gives pilots a crucial heads-up, which allows them to take corrective actions before reaching the stalling condition.

In effect, the stick shaker serves as a safety feature designed to prevent a stall from occurring by alerting the pilot to reduce the angle of attack or increase airspeed. Therefore, its activation point is calibrated to warn pilots ahead of reaching the actual stall speed, ensuring a margin of performance for the aircraft.