H. Irving Grousbeck is listed as Trustee Of The H. Irving Grousbeck Revocable Trust at Housatonic Management Company, Inc. on SEC Form ADV.
Form ADV reports a beneficial ownership band of 10-25%.
| Title | Trustee Of The H. Irving Grousbeck Revocable Trust |
| Ownership | 10-25% |
| Control person | No |
| Since | 1995 |
| Title | Trustee |
| Ownership | — |
| Control person | Yes |
| Since | 2005 |