Original filing (PDF)20260409093703NAL0007034883001

Mountaineer Laboratories LLC

Name: Mountaineer Laboratories LLC — Form 5500 (2025)
Creator: Mountaineer Laboratories LLC
License: https://www.usa.gov/government-works

Form 5500-SF

FILING_RECEIVED

401(k) retirement plan · Mountaineer Laboratories LLC filed a Form 5500 for plan year 2025.

Active participants

Accounts w/ balance

Plan assets (EOY)

Net assets (EOY)

People on this filing

Shirley Horner signed Mountaineer Laboratories LLC's 2025 Form 5500 as plan administrator.

Shirley Horner — Plan Administrator — Form 5500 signer

Get verified email & phone for these signers

Signer names are public record from the Form 5500 e-signature.

Plan identifiers

Mountaineer Laboratories LLC's EIN is 81-4054069.

EIN 81-4054069

Plan number 001

Plan year 2025

ACK ID 20260409093703NAL0007034883001

Official Form 5500 document

Download the official 2025 Form 5500 (PDF) for Mountaineer Laboratories LLC from the U.S. Department of Labor's EFAST2 system.

Download the official 2025 Form 5500 (PDF)

Plan features

Mountaineer Laboratories LLC's plan includes profit-sharing, ERISA 404(c) participant direction, a 401(k) feature, a default investment (QDIA).

Decision-maker contacts

One unlock reveals every key decision-maker — plan signer, CFO, HR & Benefits — with verified email + LinkedIn for MOUNTAINEER LABORATORIES LLC.

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Plan health score

Top-tier plan health

Directional indicator from public Form 5500 data — compliance & integrity, total plan cost, participant health and vendor stack, benchmarked against same-size peers. Not a fiduciary tool. Based on 50% of scoring inputs for this filing.

Compliance & integrity

100

Total plan cost

n/a

Plan health

n/a

Vendor & structure

100

Helping the score

Cost not scored — no comparable Schedule H expense data for this cohort.
Plan health not scored — no comparable participation/contribution data.

Plan sponsor

Name

MOUNTAINEER LABORATORIES LLC

EIN

all filings

Address

1410 JEFFERSON BLVD STE B, · POINT PLEASANT, WV · 25550

Phone

(304) 532-2454

Industry

Health Care & Social Assistance

Plan administrator

Same as plan sponsor.

Plan characteristics

Plan number

001

Plan year

2025

Plan year begin

2025-01-01

Tax period

2025-09-30

Filed

2026-04-09

Pension benefit codes

2E · Profit-sharing

2F · ERISA section 404(c)

2G · Total participant-directed accounts

2J · 401(k) feature

2K · 401(m) arrangement

2T · Default investment account (QDIA)

3D · Pre-approved plan (master / prototype / VS)

Audit & trust (Schedule H)

Service providers (Schedule C)

Small plans don't disclose service providers

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