D. E. Shaw & Co., Inc.

SEC CIK: 0001009207
Latest filing: Aug 14, 2026

SEC filings (opens in a new tab)

MBX holding history

MBX Biosciences, Inc. in every 13F filed by D. E. Shaw & Co., Inc., including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

MBX overview All 13F holders of MBX Full Q2 2026 holdings

Shares (Q2 2026): 182,767
Value: $10.1M
% of portfolio: <0.1%
Quarters held: 3; Since Q4 2025

Holdings of MBX by D. E. Shaw & Co., Inc., by quarter
Quarter	Shares	Value	% of portfolio	Share change	Action	All holders
Q2 2026	182,767	$10.1M	<0.1%	−106,122−36.7%	Reduced	Holders
Q1 2026	288,889	$8.62M	<0.1%	−382,949−57.0%	Reduced	Holders
Q4 2025	671,838	$21.2M	<0.1%	+671,838	New	Holders