  In this work, inverse scattering transforms for the sixth-order nonlinear
Schr\"{o}dinger equation with zero/nonzero boundary conditions is given. Based
on our analysis, the bound-state soliton and rogue wave solutions are obtained
respectively. In terms of the Laurent's series and generalization of the
residue theorem, the bound-state soliton is derived at zero boundary
conditions. Using the robust inverse scattering transform, we present a matrix
Riemann-Hilbert problem of the sixth-order nonlinear Schr\"{o}dinger equation
with nonzero boundary conditions. Then based on the obtained Riemann-Hilbert
problem, the higher-order rogue wave solutions are derived through a modified
Darboux transformation. Additionally, according to some appropriate parameters
choices, several graphical analyses are provided to discuss the dynamical
behaviors of the bound-state soliton and rogue wave solutions.
