Stock Analysis
Data Source: SEC EDGAR 13F
Updated Hourly

Nanobiotix (NBTX)

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

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Current Price
-- USD
Analyst Target
-- (0 analysts)
Upside
0.00%
Net Flow Q/Q
↑ +4
Streak
4Q ▲
Buyers last Q
72%

Smart Money Signals — NBTX

Based on 19 hedge funds · latest filing: 2026 Q2 · updated quarterly

📈

Buying streak — 4 quarters in a row

last 6Q
For 4 consecutive quarters, more hedge funds added NBTX 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
19 hedge funds hold NBTX 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 — +111% more funds vs a year ago

fund count last 6Q
+10 new funds entered over the past year (+111% 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.
🟢

More buyers than sellers — 72% buying

13 buying5 selling
Last quarter: 13 funds were net buyers (7 opened a brand new position + 6 added to an existing one). Only 5 were sellers (2 trimmed + 3 sold completely). A clear majority buying is a strong confirmation signal.
➡️

Steady new buyers — ~7 new funds per quarter

new funds entering per quarter
Funds opening this position for the first time: 2 → 5 → 2 → 7. A stable flow of new institutional buyers suggests ongoing interest without signs of either acceleration or slowdown.
🔄

Mostly new holders — 53% entered in last year

21% conviction (2yr+) 26% medium 53% new
Only 4 funds (21%) 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 +24% but shares only +2% — price-driven

Value
+24%
Shares
+1%
Last quarter: the total dollar value of institutional holdings rose +24%, but actual share count only changed +2%. 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 — ~7 new funds/quarter

3 → 2 → 5 → 2 → 7 new funds/Q
New funds entering each quarter: 2 → 5 → 2 → 7. Consistent flow of new institutional buyers without clear acceleration or slowdown.
🏛️

Veteran-anchored — 42% veterans vs 47% newcomers

42% veterans 11% 1-2yr 47% new
Entry-cohort mix of 19 holders: 8 (42%) are 2+ year veterans, 2 entered 1–2 years ago, and 9 (47%) joined within the past year. A veteran-weighted cap table skews toward institutional memory over fresh momentum.
📋

Smaller funds dominant — 1% AUM from top-100

1% from top-100 AUM funds
8 of 19 holders rank in the top 100 by AUM, but together hold only 1% of total institutional value. The stock is held primarily by smaller and mid-sized funds.
5.3
out of 10
Moderate Exit Risk
Exit risk score 5.3/10 — 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 — NBTX

In 2026 Q2, 13 hedge funds were net buyers of NBTX (7 opened a new position, 6 added to an existing one), while 5 reduced or exited (2 trimmed, 3 sold completely) — a 72% buyer ratio, indicating clear institutional accumulation. This marks 4 consecutive quarters of net institutional buying — a persistent conviction signal. Net fund flow last quarter: +4 funds (more new holders than closures). Total institutional holders: 19.

Hedge Fund Ownership: NBTX

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

Market Analysis: NBTX

Analyst Price Targets

Avg. Price Target
--

Analyst Recommendations

Stock Performance

Real-time

Company Profile: NBTX

-- --

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

Is It Too Late to Buy Nanobiotix (NBTX) Based on Hedge Fund 13F Filings?

Signal Freshness measures how much NBTX has moved relative to its sector benchmark (XLV) since the 2026 Q2 13F filing. A stock that has barely outrun its sector is still a relatively fresh entry point — the fund's thesis has not yet been priced in by the broader market.

Since Quarter End June 30, 2026 · 86d ago
NBTX
-6.5%
XLV
+33.2%

NBTX outperformed XLV by -39.7% since June 30, 2026.

Since 13F Filing Date August 14, 2026 · 41d ago
NBTX
-8.0%
XLV
+48.2%

Since the filing became public, NBTX outperformed XLV by -56.2% .

Interpretation: The stock is tracking its sector benchmark closely. The signal remains fresh and the entry point is still near the fund's implied reference. Learn more →

Smart Money Signal ?
Limited Smart Money Interest

No strong consensus or elite conviction detected among institutional holders.

1 top-rated funds 1 high-conviction
Consensus
1.3
/ 10
breadth
×
Elite
0.5
/ 10
conviction
Hedge Fund Positioning: NBTX
19 + Investors

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

Metric All 13F Filers (2026 Q2) Prior (2026 Q1) Change
Funds Holding 19 15 26.67%
13F Shares 6M 6M 1.65%
Total Value $218M $176M 24.13%
New Positions 7 2 +5
Increased Positions 6 4 +2
Closed Positions 3 1 +2
Reduced Positions 2 5 -3
Total Calls 0 0 -
Total Puts 0 0 -
PUT/CALL Ratio 0.0 0.0 Bullish

Statistics: NBTX

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Valuation Measures Data as of: --

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Enterprise Value/EBITDA --
Beta (5Y Monthly) --
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Short % of Float --

Financial Highlights

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Total Cash (mrq) --
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Institutional Holders (2026 Q2)

19 + investors

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

QUARTER:
Top 19 NBTX holders by conviction (% of portfolio weight) — 2026 Q2 · Source: SEC Form 13F
# Investor % of Portfolio Shares Mkt Value
1 Johnson & Johnson 26.55% 5,623,816 $212.0M
2 XTX Topco Ltd 0.01% 15,855 $598K
3 Hrt Financial LP 0.00% 27,332 $1.0M
4 GAMMA Investing LLC 0.00% 985 $37K
5 Stone House Investment Management, LLC 0.00% 76 $3K
6 Marshall Wace, LLP 0.00% 10,044 $379K
7 Optiver Holding B.V. 0.00% 13,631 $514K
8 Jane Street Group, LLC 0.00% 32,180 $1.2M
9 Morgan Stanley 0.00% 49,789 $1.9M
10 BNP Paribas Financial Markets 0.00% 4,044 $152K
11 Rhumbline Advisers 0.00% 1,502 $57K
12 Citadel Advisors LLC 0.00% 6,042 $228K
13 Osaic Holdings, INC. 0.00% 500 $19K
14 Royal Bank of Canada 0.00% 2,189 $83K
15 UBS Group AG 0.00% 2,577 $97K
16 Federation des caisses Desjardins du Quebec 0.00% 56 $2K
17 Jpmorgan Chase & Co 0.00% 1,706 $61K
18 Wells Fargo & Company/Mn 0.00% 200 $8K
19 National Bank of Canada /Fi/ 0.00% 13
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 — Nanobiotix (NBTX)

What does the Smart Money Trend signal show for NBTX?

Buying streak — 4 quarters in a row: For 4 consecutive quarters, more hedge funds added NBTX 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 NBTX?

More buyers than sellers — 72% buying: Last quarter: 13 funds were net buyers (7 opened a brand new position + 6 added to an existing one). Only 5 were sellers (2 trimmed + 3 sold completely). A clear majority buying is a strong confirmation signal.

What is the fund quality score for NBTX holders?

Smaller funds dominant — 1% AUM from top-100: 8 of 19 holders rank in the top 100 by AUM, but together hold only 1% of total institutional value. The stock is held primarily by smaller and mid-sized funds.

How long have hedge funds held NBTX?

Mostly new holders — 53% entered in last year: Only 4 funds (21%) 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.

Is it too late to buy Nanobiotix (NBTX) following the 2026 Q2 hedge fund 13F filings?

As of today, NBTX has moved -8.0% since the 2026 Q2 13F filing date (August 14, 2026), compared to +48.2% for the XLV sector ETF — an outperformance of -56.2%. Since the quarter end (June 30, 2026), NBTX has gained -6.5% vs +33.2% for XLV. The stock is tracking its sector benchmark closely. The signal remains fresh and the entry point is still near the fund's implied reference.

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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