Exhibit 11 Washington Trust Bancorp, Inc. Computation of Primary and Fully Diluted Earnings Per Share For the Three and Nine Months Ended September 30, 1994 and 1993 Three Months Ended Nine Months Ended September 30, September 30, ------------------ ----------------- 1994 1993 1994 1993 ---- ---- ---- ---- Primary: Weighted average shares 2,818,470 2,798,519 2,815,273 2,794,755 Common stock equivalents 72,359 20,843 49,577 12,638 --------- --------- --------- --------- Primary weighted average shares 2,890,829 2,819,362 2,864,850 2,807,393 ========= ========= ========= ========= Fully diluted: Weighted average shares 2,818,470 2,798,519 2,815,273 2,794,756 Common stock equivalents 75,050 26,344 74,561 26,344 --------- --------- --------- --------- Fully diluted weighted average shares 2,893,520 2,824,863 2,889,834 2,821,100 ========= ========= ========= ========= Income before cumulative effect of accounting change $1,770,234 $1,314,873 $4,418,722 $3,307,601 Cumulative effect of change in accounting for income taxes -- -- -- 305,000 --------- --------- --------- --------- Net income $1,770,234 $1,314,873 $4,418,722 $3,612,601 ========= ========= ========= ========= Primary earnings per share: Income before cumulative effect of accounting change $ .61 $ .47 $ 1.54 $ 1.18 Cumulative effect of change in accounting for income taxes -- -- -- .11 ------ ------ ------ ------ Net income $ .61 $ .47 $ 1.54 $ 1.29 ====== ====== ====== ====== Fully diluted earnings per share: Income before cumulative effect of accounting change $ .61 $ .47 $ 1.53 $ 1.17 Cumulative effect of change in accounting for income taxes -- -- -- .11 ------ ------ ------ ------ Net income $ .61 $ .47 $ 1.53 $ 1.28 ====== ====== ====== ======