| SC 13G/A | 2016-01-26 | BlackRock Inc. | MAGELLAN HEALTH INC | 2,500,933 | 9.8% | EDGAR |
| SC 13G/A | 2015-11-10 | BlackRock Inc. | MAGELLAN HEALTH INC | 2,644,779 | 10.3% | EDGAR |
| SC 13G | 2015-02-12 | RS INVESTMENT MANAGEMENT CO LLC | MAGELLAN HEALTH INC | 1,578,872 | 5.7% | EDGAR |
| SC 13G/A | 2015-02-11 | VANGUARD GROUP INC | MAGELLAN HEALTH INC | 1,866,968 | 6.8% | EDGAR |
| SC 13G | 2015-02-05 | DIMENSIONAL FUND ADVISORS LP | MAGELLAN HEALTH INC | 1,477,757 | 5.4% | EDGAR |
| SC 13G/A | 2015-01-15 | BlackRock Inc. | MAGELLAN HEALTH INC | 2,498,902 | 9.0% | EDGAR |
| SC 13G/A | 2014-02-12 | VANGUARD GROUP INC | MAGELLAN HEALTH SERVICES INC | 1,895,683 | 7.0% | EDGAR |
| SC 13G/A | 2014-01-30 | BlackRock Inc. | MAGELLAN HEALTH SERVICES INC | 2,438,842 | 8.9% | EDGAR |
| SC 13G/A | 2013-02-14 | SAC Capital Advisors LP | MAGELLAN HEALTH SERVICES INC | 1,064,925 | 3.9% | EDGAR |
| SC 13G/A | 2013-02-12 | VANGUARD GROUP INC | MAGELLAN HEALTH SERVICES INC | 1,915,904 | 6.9% | EDGAR |
| SC 13G/A | 2013-02-01 | BlackRock Inc. | MAGELLAN HEALTH SERVICES INC | 2,193,414 | 8.0% | EDGAR |
| SC 13G | 2012-09-24 | SAC Capital Advisors LP | MAGELLAN HEALTH SERVICES INC | 943,430 | 3.4% | EDGAR |
| SC 13G/A | 2012-07-24 | HealthCor Management, L.P. | MAGELLAN HEALTH SERVICES INC | 275,000 | 1.0% | EDGAR |
| SC 13G/A | 2012-02-13 | HealthCor Management, L.P. | MAGELLAN HEALTH SERVICES INC | 2,130,500 | 7.5% | EDGAR |
| SC 13G/A | 2012-02-10 | BlackRock Inc. | MAGELLAN HEALTH SERVICES INC | 2,231,070 | 7.8% | EDGAR |
| SC 13G/A | 2012-02-09 | VANGUARD GROUP INC | MAGELLAN HEALTH SERVICES INC | 1,817,386 | 6.4% | EDGAR |
| SC 13G/A | 2011-10-31 | HealthCor Management, L.P. | MAGELLAN HEALTH SERVICES INC | 3,000,000 | 10.5% | EDGAR |
| SC 13G/A | 2011-02-10 | HealthCor Management, L.P. | MAGELLAN HEALTH SERVICES INC | 2,591,980 | 7.7% | EDGAR |
| SC 13G | 2011-02-10 | VANGUARD GROUP INC | MAGELLAN HEALTH SERVICES INC | 1,795,320 | 5.4% | EDGAR |
| SC 13G/A | 2011-02-09 | RS INVESTMENT MANAGEMENT CO LLC | MAGELLAN HEALTH SERVICES INC | - | 3.7% | EDGAR |