William Edward Jacques is listed as Co-Chair at Martingale Asset Management LP on SEC Form ADV.
Form ADV reports a beneficial ownership band of 5-10%.
| Title | Co-Chair |
| Ownership | 5-10% |
| Control person | Yes |
| Since | 1987 |
| Title | President |
| Ownership | 25-50% |
| Control person | Yes |
| Since | 1987 |