The five integrated-stack charge-transfer salts [M(C5Me5)2][TCNQ] (M═Mn,Cr) and [M(C5Me5)2][TCNE] (M═Fe, Mn, Cr) are bulk ferromagnets, whereas [Fe(C5Me5)2][TCNQ] was reported to exist as two different phases, a metamagnet and a paramagnet. We now report that with careful control of the crystallization conditions, it is possible to isolate a new structural phase of [Fe(C5Me5)2][TCNQ] which is a bulk 3-D ferromagnet with Tc= 3.1 K. Thus [Fe(C5Me5)2][TCNQ] is the first example of a single compound giving rise to three distinctly different magnetic phenomena, a finding that will permit an assessment of the subtle structural features that control magnetic ordering in this class of materials.