How big is MBX Biosciences Inc.'s plan?

MBX Biosciences Inc.'s plan reported $2.8M in assets and 38 participants for 2024.

Original filing (PDF)20250310202318NAL0033027378001

MBX Biosciences Inc.

Name: MBX Biosciences Inc. — MBX Biosciences Inc. 401(k), Form 5500 (2024)
Creator: MBX Biosciences Inc.
License: https://www.usa.gov/government-works

Form 5500-SF

FILING_RECEIVED

MBX Biosciences Inc. 401(k) Plan

401(k) retirement plan · MBX Biosciences Inc.'s MBX Biosciences Inc. 401(k) Plan held $2.8M in plan assets for 38 participants in 2024.

Active participants

Accounts w/ balance

Plan assets (EOY)

$2.8M

Net assets (EOY)

$2.8M

People on this filing

Richard Bartram signed MBX Biosciences Inc.'s 2024 Form 5500 as plan administrator.

Richard Bartram — 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

MBX Biosciences Inc.'s EIN is 84-1882872.

EIN 84-1882872

Plan number 001

Plan year 2024

ACK ID 20250310202318NAL0033027378001

Official Form 5500 document

Download the official 2024 Form 5500 (PDF) for MBX Biosciences Inc. from the U.S. Department of Labor's EFAST2 system.

Download the official 2024 Form 5500 (PDF)

Plan features

MBX Biosciences Inc.'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 MBX BIOSCIENCES INC.

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Plan health score

Above-average plan

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 70% of scoring inputs for this filing.

Compliance & integrity

100

Total plan cost

n/a

Plan health

Vendor & structure

100

Knocking points off