I. To correlate the anti-tumor activity of MK-2206 in combination with trastuzumab and lapatinib in HER2-positive solid tumor patients with phosphoinositide 3-kinase (PI3K) pathway activation events, e.g., phosphatidylinositol-4,5-bisphosphate 3-kinase catalytic subunit alpha (PIK3CA) or phosphatase and tensin homolog (PTEN) and other related gene mutations and expressions; to compare the HER2 and PI3K-PTEN mutation status of the primary tumor to metastatic tumor biopsy when available.