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second and third anniversaries of December 13, 2016 (or earlier in the event of a change of control of ISG or such director's death or disability)."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Grant of restricted stock units which vest in 3 equal installments on each of the first, second and third anniversaries of December 13, 2016 (or earlier in the event of a change of control of ISG or such director's death or disability)."}],"balance_after":342636,"source":{"system":"sec-edgar","filing":"0001104659-16-162132","document":"a4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1262377/000110465916162132/a4.xml","form_type":"4"}}]}