| Title | co-owner |
| Start Date | 2012-06-00 |
| Is Current | yes |
| Percent Stake | 50% |
| Notes | Martin Haefner is a Swiss heir who has a net worth of $2 billion. The son of Walter Haefner, the oldest billionaire at the time he deceased at the age of 101 in June 2012, Martin Haefner acquired half of his father's Careal Holding AG, a Swiss corporation that has the stakes of Computer Associates. The rest 50% went to his sister, Eva Maria Bucher-Haefner, who serves as director of the board of Careal, where he is the Chairman and President. |