Combine ahi with kim chi, soy sauce, mayo, sriracha, green onion, garlic, and salt in a mixing bowl. Scoop with 1/4 cup measuring cup or scoop to form patties.
Heat a large skillet over medium heat. Once heated, add the butter and slider buns to toast.
Remove buns from pan. Add 1-1 1/2 tbspn oil to the pan and increase the heat to medium high. When the oil is shimmering add the ahi sliders. Brown on both sides.
To make the sliders, slather the buns with mayo. Place lettuce and a burger on top. Drizzle with soy glaze and top with cucumber and radish sprouts. Serve immediately.