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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
2024-09-16 Chang Carmen 10% owner Conversion +1,023,103 1,023,103
2024-09-16 Chang Carmen 10% owner Conversion +2,091,383 3,114,486
2024-09-16 Chang Carmen 10% owner Purchase +500,000 $16.00 $8.0M 3,614,486
2024-09-16 Chang Carmen 10% owner Conversion · Series A Convertible Preferred Stock −12,299,854 0
2024-09-16 Chang Carmen 10% owner Conversion · Series B Convertible Preferred Stock −25,142,840 0
2024-09-16 Florence Anthony A. Jr. 10% owner Conversion +1,023,103 1,023,103
2024-09-16 Florence Anthony A. Jr. 10% owner Conversion +2,091,383 3,114,486
2024-09-16 Florence Anthony A. Jr. 10% owner Purchase +500,000 $16.00 $8.0M 3,614,486
2024-09-16 Florence Anthony A. Jr. 10% owner Conversion · Series A Convertible Preferred Stock −12,299,854 0
2024-09-16 Florence Anthony A. Jr. 10% owner Conversion · Series B Convertible Preferred Stock −25,142,840 0
2024-09-16 Makhzoumi Mohamad 10% owner Conversion +1,023,103 1,023,103
2024-09-16 Makhzoumi Mohamad 10% owner Conversion +2,091,383 3,114,486
2024-09-16 Makhzoumi Mohamad 10% owner Purchase +500,000 $16.00 $8.0M 3,614,486
2024-09-16 Makhzoumi Mohamad 10% owner Conversion · Series A Convertible Preferred Stock −12,299,854 0
2024-09-16 Makhzoumi Mohamad 10% owner Conversion · Series B Convertible Preferred Stock −25,142,840 0
2024-09-16 Walker Paul Edward 10% owner Conversion +1,023,103 1,023,103
2024-09-16 Walker Paul Edward 10% owner Conversion +2,091,383 3,114,486
2024-09-16 Walker Paul Edward 10% owner Purchase +500,000 $16.00 $8.0M 3,614,486
2024-09-16 Walker Paul Edward 10% owner Conversion · Series A Convertible Preferred Stock −12,299,854 0
2024-09-16 Walker Paul Edward 10% owner Conversion · Series B Convertible Preferred Stock −25,142,840 0

Page 5 of 9 · 164 trades