Coverage by line
Premium dollars by benefit type (bundled lines overlap)
- Stop-loss$551K
- Dental$46K
- Vision$46K
- Life$46K
Sponsor portfolio
MAMMOTH UNDERGROUND LLC
EIN 02-0646474constructionLatest filing 2025
Plans
2
Retirement
1
$4.5M assets
Welfare
1
$596K premiums
Participants
219
Plans on this EIN
2 filingsBenefits portfolio analytics
1 plan / $596K premiums / 187 covered livesCarrier market share
Premium dollars by Schedule A carrier
92%top
- AETNA LIFE INSURANCE COMPANY92%
- PRINCIPAL LIFE INSURANCE COMPANY8%
Broker market share
Schedule A broker compensation
94%top
- MERITAIN HEALTH94%
- THE LAUGHTON COMPANY6%
Plan deep-dives
Per-plan teasers. The full analytics (fees vs peers, audit grade, trajectory, counterparties) live on each plan detail page.Retirement#001
MAMMOTH UG 401(K) PLAN
401k
Assets$4.5M
Participants132
Inside the deep dive
Fees vs peersAudit gradeAsset trajectoryContributionsSch C providers
Open plan deep dive
Welfare#502
AETNA/PRINCIPAL
Mixed - AETNA LIFE INSURANCE COMPANY
Premiums$596K
Covered lives187
Inside the deep dive
Premium breakdownCarriersBrokersCoverage stats
Open plan deep dive
Retirement plans1
| Plan # | Name | Type | Assets | Participants | Latest year | |
|---|---|---|---|---|---|---|
| 001 | MAMMOTH UG 401(K) PLAN | 401k | $4.5M | 132 | 2025 |
Welfare plans1
| Plan # | Name | Funding | Carrier | Premiums | Covered | Latest year | |
|---|---|---|---|---|---|---|---|
| 502 | AETNA/PRINCIPAL | Mixed | AETNA LIFE INSURANCE COMPANY | $596K | 187 | 2025 |
Retirement plans
Welfare plans