Randolph Willett Cook is listed as Founder And Portfolio Manager at Sunriver Management LLC on SEC Form ADV.
Form ADV reports a beneficial ownership band of Under 5%.
| Title | Founder And Portfolio Manager |
| Ownership | Under 5% |
| Control person | Yes |
| Since | 2015 |
| Title | Managing Member |
| Ownership | Over 75% |
| Control person | Yes |
| Since | 2015 |
| Title | Limited Partner |
| Ownership | Over 75% |
| Control person | Yes |
| Since | 2015 |