| Period | Weighting | Quarter | ||||||
|---|---|---|---|---|---|---|---|---|
| Company | Longest | Shortest | Min. | Avg. | Max. | First | Latest | ↓ Count |
| Ridgemont Partners Management, LLC | 10 | 10 | 22.94% | 39.96% | 67.29% | Q4 2010 | Q1 2013 | 10 |
| MUFG Americas Holdings Corp | 8 | 8 | 0.01% | 0.01% | 0.01% | Q4 2010 | Q3 2012 | 8 |
| GOLDMAN SACHS GROUP INC | 4 | 4 | 0.01% | 0.02% | 0.02% | Q1 2012 | Q4 2012 | 4 |
| NORGES BANK | 2 | 1 | 0.02% | 0.02% | 0.03% | Q2 2012 | Q1 2013 | 3 |
| Westchester Capital Management, LLC | 2 | 2 | 0.15% | 0.17% | 0.18% | Q4 2012 | Q1 2013 | 2 |
| GLENMEDE TRUST CO NA | 2 | 2 | 0.42% | 0.45% | 0.48% | Q3 2012 | Q4 2012 | 2 |
| Champlain Investment Partners, LLC | 1 | 1 | 0.48% | 0.48% | 0.48% | Q1 2013 | Q1 2013 | 1 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | 1 | 1 | 0.02% | 0.02% | 0.02% | Q1 2013 | Q1 2013 | 1 |
| KEYBANK NATIONAL ASSOCIATION/OH | 1 | 1 | 0.06% | 0.06% | 0.06% | Q4 2012 | Q4 2012 | 1 |
| PRELUDE CAPITAL MANAGEMENT, LLC | 1 | 1 | 0.25% | 0.25% | 0.25% | Q1 2013 | Q1 2013 | 1 |
| COWEN INC. | 1 | 1 | 2.13% | 2.13% | 2.13% | Q1 2013 | Q1 2013 | 1 |
| NOMURA HOLDINGS INC | 1 | 1 | 0.01% | 0.01% | 0.01% | Q4 2012 | Q4 2012 | 1 |
| CREDIT SUISSE AG/ | 1 | 1 | 0.10% | 0.10% | 0.10% | Q1 2013 | Q1 2013 | 1 |
| OppenheimerFunds, Inc. | 1 | 1 | 0.01% | 0.01% | 0.01% | Q1 2013 | Q1 2013 | 1 |
| AQR Capital Management | 1 | 1 | 0.14% | 0.14% | 0.14% | Q4 2012 | Q4 2012 | 1 |
| Partners Group Holding AG | 1 | 1 | 0.11% | 0.11% | 0.11% | Q2 2013 | Q2 2013 | 1 |
External links
This page lists all the filers that currently own ALTERRA CAPITAL HOLDINGS LIM or have owned ALTERRA CAPITAL HOLDINGS LIM in the past.