SHARE PURCHASE AGREEMENT BY AND AMONG PLATINUM SOLUTIONS, INC. ADAM C. ROSSI, LAILA N. ROSSI, ADAM C. ROSSI as Trustee of the LAILA N. ROSSI 2010 GRANTOR RETAINED ANNUITY TRUST, LAILA N. ROSSI as Trustee of the ADAM ROSSI 2010 GRANTOR RETAINED ANNUITY...