CUSIP: 458118106 Class: COMMON STOCK
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2018 | 1,590,114 | $77,009 | — | — |
| Q3 2018 | 1,793,423 | $84,309 | — | — |
| Q2 2018 | 2,611,537 | $82,995 | — | — |
| Q1 2018 | 2,733,203 | $83,527 | — | — |
| Q4 2017 | 2,285,667 | $67,953 | — | — |
| Q3 2017 | 2,431,267 | $64,234 | — | — |
| Q2 2017 | 2,449,040 | $63,577 | — | — |
| Q1 2017 | 2,416,512 | $57,175 | — | — |
| Q4 2016 | 1,820,193 | $42,884 | — | — |
| Q3 2016 | 1,873,292 | $43,273 | — | — |
| Q2 2016 | 1,530,900 | $30,817 | — | — |
| Q1 2016 | 1,543,900 | $31,866 | — | — |
| Q4 2015 | 868,800 | $22,893 | — | — |
| Q3 2015 | 1,081,800 | $21,961 | — | — |
| Q2 2015 | 664,000 | $14,223 | — | — |
| Q1 2015 | 650,200 | $12,864 | — | — |
| Q4 2014 | 775,200 | $15,194 | — | — |
| Q3 2014 | 891,100 | $14,213,045 | — | — |
| Q2 2014 | 908,200 | $14,040,772 | — | — |
| Q1 2014 | 2,007,800 | $24,555,394 | — | — |
| Q4 2013 | 3,510,300 | $35,734,854 | — | — |
| Q3 2013 | 4,070,300 | $38,342,226 | — | — |
| Q2 2013 | 5,351,200 | $42,488,528 | — | — |