| SC 13G/A | 2016-02-10 | BlackRock Inc. | CABOT CORP | 4,373,248 | 7.0% | EDGAR |
| SC 13G/A | 2016-02-10 | VANGUARD GROUP INC | CABOT CORP | 4,232,660 | 6.8% | EDGAR |
| SC 13G/A | 2015-04-10 | FMR LLC | CABOT CORP | 355,138 | 0.6% | EDGAR |
| SC 13G/A | 2015-02-12 | WELLINGTON MANAGEMENT GROUP LLP | CABOT CORP | 2,565,663 | 4.0% | EDGAR |
| SC 13G/A | 2015-02-11 | STATE STREET CORP | CABOT CORP | - | 2.8% | EDGAR |
| SC 13G | 2015-02-10 | VANGUARD GROUP INC | CABOT CORP | 3,522,081 | 5.5% | EDGAR |
| SC 13G/A | 2015-01-22 | BlackRock Inc. | CABOT CORP | 5,696,026 | 8.9% | EDGAR |
| SC 13G/A | 2015-01-12 | FMR LLC | CABOT CORP | 3,962,039 | 6.2% | EDGAR |
| SC 13G/A | 2014-02-14 | FMR LLC | CABOT CORP | 7,301,332 | 11.4% | EDGAR |
| SC 13G | 2014-02-14 | WELLINGTON MANAGEMENT CO LLP | CABOT CORP | 3,442,384 | 5.4% | EDGAR |
| SC 13G/A | 2014-02-11 | VANGUARD GROUP INC | CABOT CORP | 3,177,674 | 5.0% | EDGAR |
| SC 13G | 2014-02-03 | STATE STREET CORP | CABOT CORP | - | 5.3% | EDGAR |
| SC 13G/A | 2014-01-28 | BlackRock Inc. | CABOT CORP | 4,411,041 | 6.9% | EDGAR |
| SC 13G | 2013-12-10 | FMR LLC | CABOT CORP | 6,486,259 | 10.1% | EDGAR |
| SC 13G/A | 2013-03-08 | LORD, ABBETT & CO. LLC | CABOT CORP | 2,229,936 | 3.5% | EDGAR |
| SC 13G | 2013-02-14 | LORD, ABBETT & CO. LLC | CABOT CORP | 3,422,536 | 5.4% | EDGAR |
| SC 13G | 2013-02-13 | VANGUARD GROUP INC | CABOT CORP | 3,295,261 | 5.2% | EDGAR |
| SC 13G | 2013-02-12 | STATE STREET CORP | CABOT CORP | - | 6.5% | EDGAR |
| SC 13G/A | 2013-02-06 | BlackRock Inc. | CABOT CORP | 3,936,683 | 6.2% | EDGAR |
| SC 13G/A | 2012-02-13 | BlackRock Inc. | CABOT CORP | 3,534,011 | 5.5% | EDGAR |