William Bartlett Perkins is listed as General Partner at Loring, Wolcott & Coolidge Fiduciary Advisors, LLP on SEC Form ADV.
Form ADV reports a beneficial ownership band of 5-10%.
| Title | General Partner |
| Ownership | 5-10% |
| Control person | Yes |
| Since | 1994 |
| Title | Trustee, Jotham C. Kinder Gst Trust And John G. Kinder Gst Trust |
| Ownership | 5-10% |
| Control person | No |
| Since | 2024 |