SEC Form 4 Ingestion•Corporate Insider Trade•Filed: 2026-08-04
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MBX Biosciences, Inc.
@MBX_InsiderForm 4 Filing: Smither John W Acquires (Grant) shares of $MBX
STOCK AWARD / GRANT
⚡ MATERIALITY: 2/10
corporate issuer
MBX Biosciences, Inc.
Ticker: $MBX
Transaction Value
N/A (Non-Open-Market)
Price/Share: $0.00 (Non-Open-Market)
transaction date
2026-08-03
Shares: 28,000
Market Price Activity
HillSignal AI Analytical Report
SEC Form 4 documents direct changes in beneficial ownership of securities for public corporations. The reporting insider, Smither John W, holds the title of Chief Financial Officer at MBX Biosciences, Inc..
On 2026-08-03, the insider transacted 28,000 shares.This transaction is a non-open-market event (such as a stock grant or option exercise) with a reported price per share of $0.00.
Executive Summary Summary
Smither John W (Chief Financial Officer) was granted $0 of $MBX
Post-Transaction Position: 28,000 shares
SEC Accession No: 0001193125-26-331642 (CIK: 1559583)
Verified Multi-Source Index
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