Sponsor portfolio
IMMUNOGEN, INC.
EIN 04-2726691pharmaceuticalsLatest filing 2025
Plans
3
Retirement
1
$81.8M assets
Welfare
2
Participants
496
830 WINTER STREET - WALTHAM, MA 02451781-895-0600immunogen.comLinkedIn10001+ employeespharmaceuticals
Plans on this EIN
3 filingsPlan deep-dives
Per-plan teasers. The full analytics (fees vs peers, audit grade, trajectory, counterparties) live on each plan detail page.Retirement#001
IMMUNOGEN, INC. 401(K) PLAN AND TRUST
401k
Assets$81.8M
Participants496
Inside the deep dive
Fees vs peersAudit gradeAsset trajectoryContributionsSch C providers
Open plan deep dive
Welfare#501
IMMUNOGEN, INC. WELFARE BENEFIT PLAN
Self Funded
Premiums$0
Covered lives0
Inside the deep dive
Premium breakdownCarriersBrokersCoverage stats
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Welfare#503
IMMUNOGEN, INC. SEVERANCE PAY PLAN FOR ALL EMPLOYEES
Self Funded
Premiums$0
Covered lives0
Inside the deep dive
Premium breakdownCarriersBrokersCoverage stats
Open plan deep dive
Retirement plans1
| Plan # | Name | Type | Assets | Participants | Latest year | |
|---|---|---|---|---|---|---|
| 001 | IMMUNOGEN, INC. 401(K) PLAN AND TRUST | 401k | $81.8M | 496 | 2024 |
Welfare plans2
| Plan # | Name | Funding | Carrier | Premiums | Covered | Latest year | |
|---|---|---|---|---|---|---|---|
| 501 | IMMUNOGEN, INC. WELFARE BENEFIT PLAN | Self Funded | - | $0 | 0 | 2025 | |
| 503 | IMMUNOGEN, INC. SEVERANCE PAY PLAN FOR ALL EMPLOYEES | Self Funded | - | $0 | 0 | 2025 |
Retirement plans
Welfare plans