MBX Institutional Ownership

MBX BIOSCIENCES INC

Latest close $68.89 as of Aug 5, 2026

Schedule 13G/13D reports beneficial ownership at an observation date. “Accumulation” or “reduction” is inferred from changes in reported shares when available; it is not a list of individual trades or exact execution prices. Form 13F rows are quarter-end holding context only and do not establish an exact entry date.

Free access includes current parsed ownership filings, reported share changes, and ownership-percentage changes. Filing-specific significance scoring, disclosure-speed analysis, confirmation/divergence signals, and signal alerts require Investor or Pro. The overall institutional consensus preview remains public. Compare plans.

Cross-institution intelligence

Institutional Research

Each institution is compared with its own prior filing, then the latest institution-level directions are compared for breadth.

Latest filing Jul 29, 2026

Public consensus preview Reduction leaning 42/100 institutional research score

2 tracked institutions Latest filing Jul 29, 2026

1 accumulating, 1 reducing across 2 comparable institutions.

Accumulating1

Unchanged0

Reducing1

Exited0

The overall consensus is public. Detailed holder comparisons, breadth history, ownership charts, and filing-specific signal analysis remain part of Investor and Pro research.

Price context

52-week position is market context and does not change the institutional consensus score.

52-week low$9.63 52-week high$57.38

Latest close $68.89 100.0% through the range

Tracked institutions

Public holder names and filing freshness. Detailed institution-by-institution analysis is locked.

Latest observation Jun 30, 2026

BlackRock Jul 29, 2026 filed

Wellington Management Group Jul 8, 2026 filed

Fidelity / FMR Jul 8, 2026 filed

Detailed institutional research

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Beneficial ownership filing history

Showing 3 of 6 parsed filing(s) · 3 older require more history access

Holder	Observed / filed	Reported change	Shares	Ownership	Observation	Filing	Latest
BlackRock CIK0002012383	Jun 30, 2026 observed Jul 29, 2026 filed · 29d Initial Schedule 13G	Initial Schedule 13G	2.6M +340.7K	12.00% 0.00 pts	$55.20	$63.96	$68.89
Wellington Management Group CIK0000902219	Jun 30, 2026 observed Jul 8, 2026 filed · 8d Schedule 13G amendment	Earliest Schedule 13G amendment found	5.0M	10.50%	$55.20	$61.74	$68.89
Fidelity / FMR CIK0000315066	Jun 30, 2026 observed Jul 8, 2026 filed · 8d Schedule 13G amendment	Reported reduction	5.3K -2.9M	12.00% 0.00 pts	$55.20	$61.74	$68.89

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Recent multi-institution accumulation

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