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CIK 0001776111 · Non-accelerated filer<br>Smaller reporting company<br>Emerging growth company

MBX Biosciences, Inc.

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Ticker
MBX
Exchange
Nasdaq
Industry
Pharmaceutical Preparations
FY end
Dec 31
Incorporated
DE
Entity type
operating
Phone
3179893100
Business address
11711 N. MERIDIAN STREET, SUITE 300, CARMEL, IN, 46032
Open-market buys, last 90 days
$0
in 0 filings
Open-market sales, last 90 days
$288,361
in 2 filings

Net −$288,361. Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.

Date Insider Transaction Shares Price Value Owned after
2025-02-14 ORBIMED ADVISORS LLC Director Purchase +29,540 $9.85 $291K 3,205,930
2025-02-04 Hawryluk P. Kent President & CEO Purchase +50,000 $10.69 $535K 448,277
2025-02-03 Azoulay Salomon Chief Medical Officer Grant or award · Stock Option (Right to Buy) +90,000 90,000
2025-02-03 Bartram Richard Chief Financial Officer Grant or award · Stock Option (Right to Buy) +95,000 95,000
2025-02-03 Hawryluk P. Kent President & CEO Grant or award · Stock Option (Right to Buy) +243,000 243,000
2024-09-16 Mathers Edward T Director Conversion +1,023,103 1,023,103
2024-09-16 Mathers Edward T Director Conversion +2,091,383 3,114,486
2024-09-16 Mathers Edward T Director Purchase +500,000 $16.00 $8.0M 3,614,486
2024-09-16 Mathers Edward T Director Conversion · Series A Convertible Preferred Stock −12,299,854 0
2024-09-16 Mathers Edward T Director Conversion · Series B Convertible Preferred Stock −25,142,840 0
2024-09-16 BASKETT FOREST 10% owner Conversion +1,023,103 1,023,103
2024-09-16 BASKETT FOREST 10% owner Conversion +2,091,383 3,114,486
2024-09-16 BASKETT FOREST 10% owner Purchase +500,000 $16.00 $8.0M 3,614,486
2024-09-16 BASKETT FOREST 10% owner Conversion · Series A Convertible Preferred Stock −12,299,854 0
2024-09-16 BASKETT FOREST 10% owner Conversion · Series B Convertible Preferred Stock −25,142,840 0
2024-09-16 Behbahani Ali 10% owner Conversion +1,023,103 1,023,103
2024-09-16 Behbahani Ali 10% owner Conversion +2,091,383 3,114,486
2024-09-16 Behbahani Ali 10% owner Purchase +500,000 $16.00 $8.0M 3,614,486
2024-09-16 Behbahani Ali 10% owner Conversion · Series A Convertible Preferred Stock −12,299,854 0
2024-09-16 Behbahani Ali 10% owner Conversion · Series B Convertible Preferred Stock −25,142,840 0

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