ORBIMED ADVISORS LLC

Holdings History for MBX Biosciences, Inc. - COMMON STOCK (MBX)

Symbol: MBX on Nasdaq
Investment type: Equity / COMMON STOCK
Latest Disclosed Shares Owned: 3,637,887 shares
Security Ownership %: 7.7%

Shares, Excluding Options vs Price

Value, Excluding Options

ORBIMED ADVISORS LLC ownership in MBX Biosciences, Inc. COMMON STOCK (MBX)

11 Feb 2026 - ORBIMED ADVISORS LLC has filed an SCHEDULE 13D/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 3,637,887 shares of MBX Biosciences, Inc. COMMON STOCK (MBX). This represents 7.7% ownership of the company. In their previous filing dated 30 Sep 2025, ORBIMED ADVISORS LLC had reported owning 4,002,887 shares, indicating a decrease of +9.1%. .

Reporting Name	Ownership %	Change	Value $	Shares owned	Change	Activity %	Price	Form	Report date	Filing time
ORBIMED ADVISORS LLC	7.7%	-14%	$118,413,222	3,637,887	-365,000	-9.1%	$32.55	13D/A	05 Feb 2026	11 Feb 2026, 18:42
ORBIMED ADVISORS LLC	9%		$55,600,100	4,002,887			$13.89	13D/A	26 Sep 2025	30 Sep 2025, 19:06

Holdings date	Weight	Change	Value $	Shares	Change	Activity %	Price	All Holders
31 Dec 2025	2.7%	-0.05%	$124,116,303	3,935,203	-67,684	-1.7%	$31.54	Q4 2025
30 Sep 2025	1.7%	0%	$70,050,523	4,002,887	0		$17.50	Q3 2025
30 Jun 2025	1.2%	0%	$45,672,941	4,002,887	0		$11.41	Q2 2025
31 Mar 2025	0.71%	+0.03%	$29,541,306	4,002,887	+190,672		$7.38	Q1 2025
31 Dec 2024	1.5%	0%	$70,259,122	3,812,215	0		$18.43	Q4 2024
30 Sep 2024	1.8%	+1.8%	$99,041,346	3,812,215	+3,812,215	NEW	$25.98	Q3 2024

* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.