X0303 4 2011-04-11 0 0000930553 ISTA PHARMACEUTICALS INC ISTA 0000824468 CREDIT SUISSE AG/ SEE FOOTNOTE (1) IN EXHIBIT 99.1 ELEVEN MADISON AVENUE NEW YORK NY 10010 0 0 1 0 Common Stock 2011-04-11 4 X 0 1615385 1.41 A 8553109 I See Footnote Common Stock 2011-04-11 4 S 0 216526 10.52 D 8336583 I See Footnote Warrants (right to buy) 1.41 2011-04-11 4 P 0 1615385 0 A Common Stock 1615385 1615385 I See Footnote Warrants (right to buy) 1.41 2011-04-11 4 X 0 1615385 0 D Common Stock 1615385 0 I See Footnote See footnote (1) in Exhibit 99.1. See footnote (2) in Exhibit 99.1. See footnote (3) in Exhibit 99.1. /s/ Ivy Dodes, Managing Director 2011-04-13