Many details of giant planet formation and evolution remain untested due to limited observational constraints on when they assemble and grow through gas accretion. Two key diagnostics—ultraviolet (UV) accretion signatures and mid-infrared (IR) circumplanetary disk excess—offer critical insight into this process, but are rarely accessible for the same system due to practical challenges. I will present new UV and mid-IR direct imaging of the wide planetary-mass companion SR 12 c with HST/WFC3-UVIS and JWST/MIRI. These data expand SR 12 c's spectral energy distribution (SED) to span 0.2–21 microns, making it one of the most complete SEDs of a young imaged giant planet to date. UV photometry shows a strong Balmer continuum excess, and hydrogen slab models yield an accretion luminosity and mass accretion rate. In the mid-IR, we detect substantial thermal excess from a circumplanetary disk and search for signs of grain growth. This snapshot of active accretion onto SR 12 c adds to the growing sample of distant planets with detailed accretion and disk constraints, helping to establish the timescales and physical processes that govern giant planet formation.