Mainfreight USA Partnership

Carson, CA Transportation & logisticsNAICS 481000

Self-funded health planPlan year 2025Renews January
1,591Participants+11% vs. prior year
$3.8MEst. pharmacy spend / yrParticipants × national avg.
Jan 2027Next renewalPlan year begins January 1
#3 of 7Transportation & logistics in CABy participants

Overview

Mainfreight USA Partnership sponsors a self-funded health plan that covered 1,591 participants in plan year 2025, up 11% from the prior year. The plan year starts in January. Alongside medical, its benefits filing reports life insurance, dental, vision, short-term disability, and more.

Plan type
ERISA welfare benefit plan, self-funded (benefits paid from employer assets or a trust)
Participants
1,591 · prior year 1,435
Plan year
Begins January 1 · next renewal January 2027
Health plans filed
Mainfreight Inc., plan 501 (1,591 participants)
Broker compensation
$23K across insured contracts
MedicalLife insuranceDentalVisionShort-term disabilityPrepaid legalLong-term disabilityDeath benefits

Insurance carriers

Insured coverage reported on Schedule A. Self-funded medical claims aren't reported there.

CarrierCoverageCoveredPremiumBroker comp
Cigna Health and Life Insurance Company and AffiliatesDental900$567K$2K
Life Insurance Company of North AmericaLife, Short-term disability, Long-term disability1,591$392K$6K
Cigna Health and Life Insurance CompanyAccident, Critical Illness, Hospital1,591$117K$14K
Vision Service PlanVision829$91K—
Arag Insurance CompanyLegal104$16K$2K

Pharmacy benefit estimate

StreamRX estimate for a plan this size. Not based on this plan's claims.

$3.8M/ year

Estimated prescription spend: 1,591 participants × $2,371 national average per member. Usually higher once dependents are counted.

$98K–$242K/ year

Typical savings opportunity found in independent reviews of plans this size.

Brands with a generic available$29K–$72K
Lower-cost therapeutic alternatives$42K–$88K
Generic pricing vs. actual cost$18K–$54K
PBM contract terms$9K–$28K
The DOL's PBM fee disclosure rule first applies to this plan for the plan year beginning January 2028: semiannual PBM compensation reports and an annual audit right.

Form 5500 filing details

Filing
Form 5500 with Schedule A, plan year 2025
Plan sponsor
Mainfreight USA Partnership
Sponsor EIN
98-0550250
Plan number
501
Filed with
U.S. Department of Labor (EBSA) via EFAST2

Verify this filing: search EIN 98-0550250 in the Department of Labor's EFAST2 Form 5500 search.

Retirement plan

Plan
Mainfreight USA Partnership 401(k) Retirement Plan
Type
401(k) plan
Participants
1,735

About this data

Source: Mainfreight USA Partnership's Form 5500 filing for plan year 2025 and its Schedule A insurance reports, published by the U.S. Department of Labor. "Self-funded" means the filing reports benefits paid from employer assets or a trust, with no medical insurance contract or with a stop-loss contract. Pharmacy figures are StreamRX estimates based on national averages. StreamRX is not affiliated with Mainfreight USA Partnership.

Request a correction · Methodology