Plan Snapshot
- Plan Sponsor: Immunogen, INC.
- Sponsor EIN: 042726691
- Sponsor Address: 830 WINTER STREET, WALTHAM, MA, 02451
- Plan Type: 401(k)
- Total Participants: 0
- Total Assets: $0
Key Plan Design Features
- Auto-Enrollment: Yes
- Auto-Escalation: No
- Allows Roth Contributions: Yes
- Participant Loans: No
- Participant-Directed Investments: Yes
- ERISA Section 404(c) Fiduciary Safe Harbor: Yes
Plan Financials by Year
| Year | Participants | Total Assets | Employer Contrib. | Employee Contrib. |
|---|---|---|---|---|
| 2025 | 0 | $0 | $0 | $0 |
| 2024 | 225 | $81.8M | $1.8M | $5.8M |
| 2023 | 295 | $73.3M | $1.7M | $5.3M |
| 2022 | 276 | $58.5M | $954,677 | $3.0M |
Service Providers (Schedule C)
Vendors paid $5,000 or more for services to the plan, ranked by total compensation (direct + indirect fees).
| Provider Name | Role | Direct Compensation | Indirect Compensation | Total Fees |
|---|---|---|---|---|
| RSM US LLP | Auditor | — | — | $0 |
Verified Provider Profiles
Direct links to verified profiles of matched retirement plan providers on PlanProvider.Pro:
- RSM US LLP — Auditor
Plan Fees & Expenses
Annual service provider fees and administrative expenses sourced from DOL Form 5500 filings.
- Total Service Provider Fees: $0
Historical Administrative Expenses
Breakdown of administrative expense categories reported on Form 5500 filings.
| Year | Total Admin Expenses | Investment Mgmt Fees | Contract Admin Fees | IQPA Audit Fees | Professional Fees |
|---|---|---|---|---|---|
| 2025 | $36,898 | $5,078 | — | — | — |
| 2024 | $15,658 | $12,926 | — | — | — |
| 2023 | $37,533 | $6,722 | $900 | — | — |
| 2022 | $24,763 | $2,495 | — | — | — |