Kepler-445 is a cool M-dwarf (about 0.18 solar masses, 3,157 K, 0.21 solar radii), 127 light-years from Earth. Kepler-445 b is a planet with 1.6 Earth radii, with an orbital period of 3.0 days, discovered in 2015 via transit. Kepler-445 c is a planet with 2.5 Earth radii, with an orbital period of 4.9 days, discovered in 2015 via transit. Kepler-445 d is a planet with 1.3 Earth radii, with an orbital period of 8.2 days, discovered in 2015 via transit. Mutual gravitational tugs between the planets can slowly reshape their orbits, preserving clues to the system's assembly.