Stock Analysis
Data Source: SEC EDGAR 13F
Updated Hourly

Mbx Biosciences Inc (MBX)

169 + Investors. Track Smart Money conviction in MBX. See who's accumulating, reducing, or initiating positions.

Current Price
-- USD
Analyst Target
-- (0 analysts)
Upside
0.00%
Net Flow Q/Q
↑ +20
Streak
8Q ▲
Buyers last Q
59%

Smart Money Signals — MBX

Based on 174 hedge funds · latest filing: 2026 Q2 · updated quarterly

📈

Buying streak — 8 quarters in a row

last 6Q
For 8 consecutive quarters, more hedge funds added MBX than sold it. That's a consistent pattern of professional buying — not a one-time trade. When institutions keep buying quarter after quarter, it usually means they see a multi-year opportunity, not just a short-term momentum flip.
🏔️

At the ownership peak (100% of max)

100% of all-time peak
174 hedge funds hold MBX right now — the highest count in 3.0 years. When ownership is this concentrated, any bad news can trigger a chain reaction: one big fund sells, others follow. This is a classic 'crowded trade' — high popularity doesn't equal safety.
🚀

Fast accumulation — +98% more funds vs a year ago

fund count last 6Q
+86 new funds entered over the past year (+98% YoY). That's a rapid rush of institutional money. Fast accumulation often signals a major thesis — but it also means the stock could fall quickly if that thesis breaks.
🟡

Slight buying edge — 59% buying

105 buying72 selling
Last quarter: 105 funds bought or added vs 72 that reduced or exited. It's nearly a 50/50 split — some institutions are convinced, others are taking profits. This mixed picture is normal near price highs.
➡️

Steady new buyers — ~41 new funds per quarter

new funds entering per quarter
Funds opening this position for the first time: 42 → 43 → 38 → 41. A stable flow of new institutional buyers suggests ongoing interest without signs of either acceleration or slowdown.
🔄

Mostly new holders — 47% entered in last year

■ 5% conviction (2yr+) ■ 48% medium ■ 47% new
Only 9 funds (5%) have held >2 years. The majority of current holders are relatively new to the position. New holders tend to sell faster when prices drop — a shallow conviction base that could amplify any sell-off.
💰

Value +100% but shares only +9% — price-driven

Value
+99%
Shares
+9%
Last quarter: the total dollar value of institutional holdings rose +100%, but actual share count only changed +9%. The gap is explained by the stock's price rising — not new buying. Strong value growth with weak share growth means the rally is price momentum, not fresh institutional demand.
➡️

Steady discovery — ~41 new funds/quarter

21 → 42 → 43 → 38 → 41 new funds/Q
New funds entering each quarter: 42 → 43 → 38 → 41. Consistent flow of new institutional buyers without clear acceleration or slowdown.
🌱

Early stage — 60% of holders entered in last year

■ 5% veterans ■ 35% 1-2yr ■ 60% new
Of 178 current holders: 106 (60%) entered in the past year, only 9 (5%) are 2+ year veterans. This is an early-phase institutional idea — still being discovered. High upside potential if the thesis plays out, but thin conviction base.
✅

Strong quality — 35% AUM from major funds

35% from top-100 AUM funds
44 of 171 holders rank in the top 100 by AUM, accounting for 35% of total institutional value held. A meaningful share of the ownership value comes from the most well-resourced institutions.
5.0
out of 10
Moderate Exit Risk
Exit risk score 5.0/10 — some crowding factors present, but no critical concentration. Watch ownership trend over the next 1–2 quarters for direction.

Methodology note: these Smart Money cards use consecutive 13F disclosure snapshots, not trade-by-trade execution data. "Buying", "selling", "new holders", and "trimmed" refer to quarter-over-quarter changes in reported holders, aggregate shares, or disclosed position values between filings. They are useful for ownership regime analysis and crowding, but they do not imply exact trade timing on the filing date.

Institutional Sentiment Summary — MBX

In 2026 Q2, 105 hedge funds were net buyers of MBX (41 opened a new position, 64 added to an existing one), while 72 reduced or exited (51 trimmed, 21 sold completely) — a 59% buyer ratio, indicating a slight buying edge. This marks 8 consecutive quarters of net institutional buying — a persistent conviction signal. 35% of total institutional value in MBX is held by top-100 AUM funds, reflecting strong institutional quality. Net fund flow last quarter: +20 funds (more new holders than closures). Total institutional holders: 174.

Hedge Fund Ownership: MBX

How many hedge funds hold MBX — quarterly history vs. share price
Quarterly hedge fund ownership of MBX vs. share price

Market Analysis: MBX

Analyst Price Targets

Avg. Price Target
--

Analyst Recommendations

Stock Performance

Real-time

Company Profile: MBX

-- --

Institutional ownership data sourced from SEC EDGAR Form 13F-HR filings.

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Smart Money Signal ?
Limited Smart Money Interest

No strong consensus or elite conviction detected among institutional holders.

10 top-rated funds 5 high-conviction
Consensus
4.5
/ 10
breadth
×
Elite
4.4
/ 10
conviction
Hedge Fund Positioning: MBX
169 + Investors

Track Smart Money conviction in MBX. See who's accumulating, reducing, or initiating positions.

Metric All 13F Filers (2026 Q2) Prior (2026 Q1) Change
Funds Holding 169 154 9.74%
13F Shares 56M 53M 6.65%
Total Value $3.04B $1.54B 98.13%
New Positions 41 38 +3
Increased Positions 61 43 +18
Closed Positions 23 23 -
Reduced Positions 50 48 +2
Total Calls 4 3 33.33%
Total Puts 3 2 50.0%
PUT/CALL Ratio 0.75 0.67 Neutral

Statistics: MBX

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Financial Highlights

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Institutional Holders (2026 Q2)

169 + investors

Explore institutional interest and hedge fund ownership dynamics. Analyze portfolio weights, new positions, and conviction trends in MBX. Verified SEC 13F-HR filings.

QUARTER:
Top 25 MBX holders by conviction (% of portfolio weight) — 2026 Q2 · Source: SEC Form 13F
# Investor % of Portfolio Shares Mkt Value
1 NVP Associates, LLC 35.93% 2,136,335 $117.9M
2 NEA Management Company, LLC 12.56% 3,614,486 $199.5M
3 Frazier Life Sciences Management, L.P. 8.00% 6,652,013 $367.2M
4 KVP Capital Advisors, LP 4.92% 121,524 $6.7M
5 Parkman Healthcare Partners LLC 4.52% 800,173 $44.2M
6 Orbimed Advisors LLC 3.51% 3,428,736 $189.3M
7 Aaron Wealth Advisors LLC 3.27% 1,167,799 $64.5M
8 Kynam Capital Management, LP 2.85% 934,799 $51.6M
9 Paradigm Biocapital Advisors LP 2.59% 2,508,015 $138.4M
10 Tetragon Partners GP Ltd 1.77% 203,543 $11.2M
11 Cormorant Asset Management, LP 1.56% 550,000 $30.4M
12 Braidwell LP 1.45% 710,880 $39.2M
13 Deep Track Capital, LP 1.39% 1,732,569 $95.6M
14 Opaleye Management Inc. 1.30% 260,000 $14.4M
15 Elmind Capital, LP 1.26% 91,000 $5.0M
16 EcoR1 Capital, LLC 1.04% 388,500 $21.4M
17 Soleus Capital Management, L.P. 0.98% 515,279 $28.4M
18 TCG Crossover Management, LLC 0.86% 650,000 $35.9M
19 Rock Springs Capital Management LP 0.80% 298,218 $16.5M
20 Eventide Asset Management, LLC 0.64% 873,492 $48.2M
21 Koa Wealth Management, LLC 0.64% 17,113 $945K
22 Platinum Investment Management Ltd 0.59% 43,597 $2.4M
23 Caligan Partners LP 0.52% 200,000 $11.0M
24 Driehaus Capital Management LLC 0.34% 1,056,579 $58.3M
25 PFM Health Sciences, LP 0.34% 70,971 $3.9M
Investor Ownership
History 		% of Portfolio Prev % Rank Conviction Avg Buy Price 13F Score™ 3Y / 7Y Sell Timing Shares Mkt Value Change Change % Source Quarter Filed

Frequently Asked Questions — Mbx Biosciences Inc (MBX)

What does the Smart Money Trend signal show for MBX?

Buying streak — 8 quarters in a row: For 8 consecutive quarters, more hedge funds added MBX than sold it. That's a consistent pattern of professional buying — not a one-time trade. When institutions keep buying quarter after quarter, it usually means they see a multi-year opportunity, not just a short-term momentum flip.

What is the institutional breadth score for MBX?

Slight buying edge — 59% buying: Last quarter: 105 funds bought or added vs 72 that reduced or exited. It's nearly a 50/50 split — some institutions are convinced, others are taking profits. This mixed picture is normal near price highs.

What is the fund quality score for MBX holders?

Strong quality — 35% AUM from major funds: 44 of 171 holders rank in the top 100 by AUM, accounting for 35% of total institutional value held. A meaningful share of the ownership value comes from the most well-resourced institutions.

How long have hedge funds held MBX?

Mostly new holders — 47% entered in last year: Only 9 funds (5%) have held >2 years. The majority of current holders are relatively new to the position. New holders tend to sell faster when prices drop — a shallow conviction base that could amplify any sell-off.

Where does this institutional ownership data come from?

All holdings data is sourced from SEC Form 13F filings, which institutional investment managers with over $100 million in assets are required to submit quarterly. Data is parsed directly from SEC EDGAR.

Disclaimer: The information on this page is for informational purposes only and does not constitute investment advice, a recommendation, or an offer to buy or sell any security. Institutional holdings data is sourced from SEC Form 13F filings and reflects positions as of the filing date. Past performance of any fund or portfolio is not indicative of future results. 13Foresight is not a registered investment adviser. Always conduct your own due diligence before making investment decisions.

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