X0206 3 2014-03-24 0 0001329799 Square 1 Financial Inc SQBK 0001603621 Thompson Gregory Bruce 406 BLACKWELL STREET SUITE 240 DURHAM NC 27701 1 EVP -- Shared Services Class A Common Stock 5891.0000 D Class A Common Stock 9000.0000 I Restricted Stock IV Class A Common Stock 1781.0000 I Restricted Stock VI Stock Option (Right to Buy) 6.0000 2018-08-08 Class A Common Stock 40000.0000 D Restricted stock vests in three equal annual installments, beginning on November 15, 2014, the first anniversary of the date of the award. Restricted stock vests in two equal annual installments, beginning on March 1, 2015. Stock options vest in five equal annual installments, beginning on August 8, 2012, the first anniversary of the date of the grant. thompson-poa.txt /s/ Gregory Bruce Thompson 2014-03-31