Coverage by line
Premium dollars by benefit type (bundled lines overlap)
- Dental$2.4M
- Health$2.2M
- Prescription drug$2.2M
- Vision$11K
Filings through .
C4 Therapeutics, Inc.
EIN 47-5617627biotechnologyLatest filing 2025
Plans
2
Retirement
1
$31.5M assets
Health & Benefits
1
$2.4M premiums
Participants
286
490 ARSENAL WAY, SUITE 120 - WATERTOWN, MA 02472617-245-2761c4therapeutics.comLinkedIn51-200 employeesbiotechnology
Plans on this EIN
2 filingsHealth & Benefits portfolio - carriers, brokers and premium across this company's health and benefits plan.
Benefits portfolio analytics
1 plan / $2.4M premiums / 262 covered lives
See carrier and broker market share with Pro.
Pro unlocks:
- Top carriers and their premium share
- Top brokers and their commission share
Plan summaries
Each card links to its plan page. The plan page shows fees vs peers, audit grade, history and counterparties.
Retirement#001
C4 THERAPEUTICS, INC. 401(K) PLAN
401(k)
Assets$31.5M
Participants176
On the plan page
Fees vs peersAudit gradeAsset trajectoryContributionsSch C providers
Open plan
Health & Benefits#501
C4 THERAPEUTICS, INC. HEALTH AND WELFARE PLAN
Fully insured - BLUE CROSS BLUE SHIELD OF MASSACHUSETTS, INC.
Premiums$2.4M
Covered lives262
On the plan page
Premium breakdownCarriersBrokersCoverage stats
Open plan
Retirement plans
1 plan on this EIN
| Plan | Name | Type | Assets | Participants | Latest year |
|---|---|---|---|---|---|
| #001 | C4 THERAPEUTICS, INC. 401(K) PLAN | 401(k) | $31.5M | 176 | 2025 |
- #001 · 401(k) · 2025176
Health & Benefits plans
1 plan on this EIN
| Plan | Name | Funding | Carrier | Premiums | Covered | Latest year |
|---|---|---|---|---|---|---|
| #501 | C4 THERAPEUTICS, INC. HEALTH AND WELFARE PLAN | Fully insured | BLUE CROSS BLUE SHIELD OF MASSACHUSETTS, INC. | $2.4M | 262 | 2025 |
- #501 · Fully insured · BLUE CROSS BLUE SHIELD OF MASSACHUSETTS, INC. · 2025262
Retirement plans
Health & Benefits plans