Stock Analysis
Data Source: SEC EDGAR 13F
Updated Hourly

Boston Scientific Corp (BSX)

2K + Investors. Track Smart Money conviction in BSX. See who's accumulating, reducing, or initiating positions.

Current Price
-- USD
Analyst Target
-- (0 analysts)
Upside
0.00%
Net Flow Q/Q
↓ -101
Streak
1Q ▼
Buyers last Q
48%

Smart Money Signals — BSX

Based on 1664 hedge funds · latest filing: 2026 Q1 · updated quarterly

📉

Selling streak — 1 quarter in a row

last 6Q
For 1 consecutive quarter, more hedge funds reduced or closed their BSX positions than added to them. Sustained institutional selling is a meaningful warning sign — these are professionals with deep research teams collectively deciding to exit.
📊

High ownership — 94% of 3.0Y peak

94% of all-time peak
1,664 funds currently hold this stock — 94% of the 3.0-year high of 1,765 funds (reached 2025 Q4). Ownership is elevated but not yet at maximum concentration. Room to grow, but watch if the trend reverses.
📶

Steady growth — +4% more funds vs a year ago

fund count last 6Q
+58 new funds entered over the past year (+4% YoY). Gradual, steady growth in institutional ownership is generally a healthy signal — not a speculative rush, but consistent conviction.
🟠

More sellers than buyers — 48% buying

884 buying967 selling
Last quarter: 967 funds reduced or exited vs 884 that bought or added. When more than half of active funds are selling, it's a caution flag — especially if the stock price hasn't moved down yet.
⚠️

Fewer new buyers each quarter (-27 vs last Q)

new funds entering per quarter
Funds opening this position for the first time: 167 → 188 → 238 → 211. Each quarter fewer new institutions are entering. This usually means most funds that wanted in are already in — the stock is well-known but the pool of potential new buyers is shrinking.
🔒

59% of holders stayed for 2+ years

■ 59% conviction (2yr+) ■ 21% medium ■ 20% new
987 out of 1,664 hedge funds have held BSX for over 2 years without selling. Long-term investors are generally harder to shake out during market stress, creating a stable ownership base that limits the risk of sudden capitulation.
💎

Buying through price weakness — shares -1%, value -36%

Value
-36%
Shares
-1%
Last quarter: funds added -1% more shares while total portfolio value only changed -36%. Institutions were buying while the price was falling — a high-conviction accumulation signal. They're deliberately loading up on the dip.
📈

Growing discovery — still being found

240 → 167 → 188 → 238 → 211 new funds/Q
New funds entering each quarter: 167 → 188 → 238 → 211. A growing number of institutions are discovering BSX each quarter. The narrative is still spreading — leaving room for ongoing capital accumulation.
🏛️

Veteran-anchored — 63% veterans vs 23% newcomers

■ 63% veterans ■ 13% 1-2yr ■ 23% new
Entry-cohort mix of 1,749 holders: 1,110 (63%) are 2+ year veterans, 233 entered 1–2 years ago, and 406 (23%) joined within the past year. A veteran-weighted cap table skews toward institutional memory over fresh momentum.
🏆

Elite ownership — 61% AUM from top-100 funds

61% from top-100 AUM funds
73 of 1658 holders are among the 100 largest funds by AUM, controlling 61% of total institutional value in BSX. When the biggest players dominate the cap table, it signifies deep institutional support — since mega-funds deploy the most rigorous due diligence and capital.
3.4
out of 10
Low Exit Risk
Exit risk score 3.4/10 — low institutional crowding. Ownership is below peak levels, holder base is relatively sticky, and buying momentum is positive.

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 — BSX

In 2026 Q1, 884 hedge funds were net buyers of BSX (211 opened a new position, 673 added to an existing one), while 967 reduced or exited (655 trimmed, 312 sold completely) — a 48% buyer ratio, indicating roughly balanced activity. 61% of total institutional value in BSX is held by top-100 AUM funds, reflecting elite-tier ownership quality. Net fund flow last quarter: -101 funds (more exits than new entries). Total institutional holders: 1664.

Hedge Fund Ownership: BSX

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

Market Analysis: BSX

Analyst Price Targets

Avg. Price Target
--

Analyst Recommendations

Stock Performance

Real-time

Company Profile: BSX

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

Loading signal freshness…
Smart Money Signal ?
Broad Consensus, Selective Conviction

Many quality funds hold this stock, but top-tier positions remain relatively small.

95 top-rated funds 23 high-conviction
Consensus
8.6
/ 10
breadth
×
Elite
3.9
/ 10
conviction
Hedge Fund Positioning: BSX
2026 Q2 Stats Unlock in 4 days 2K + Investors

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

Metric All 13F Filers (2026 Q1) Prior (2025 Q4) Change
Funds Holding 1645 1763 -6.69%
13F Shares 1.33B 1.38B -3.1%
Total Value $81.04B $130.12B -37.72%
New Positions 203 238 -35
Increased Positions 660 656 +4
Closed Positions 321 152 +169
Reduced Positions 618 678 -60
Total Calls 53 35 51.43%
Total Puts 38 34 11.76%
PUT/CALL Ratio 0.72 0.97 Neutral

Statistics: BSX

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Financial Highlights

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Institutional Holders (2026 Q2)

2K + investors

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

QUARTER:
2026 Q2 filings are still coming in. Only funds that have filed so far are shown — top holders may not have reported yet. Full 13F data typically settles by ~50 days after quarter-end.
Top 25 BSX holders by conviction (% of portfolio weight) — 2026 Q1 · Source: SEC Form 13F
# Investor % of Portfolio Shares Mkt Value
1 Prosight Management, LP 9.34% 1,270,273 $54.2M
2 DKRT Investments Corp. 8.13% 780,000 $33.3M
3 Cadian Capital Management, LP 3.57% 1,105,132 $47.2M
4 Encore Global Management, LP 3.09% 73,700 $3.1M
5 DG Capital Management, LLC 2.70% 300,000 $12.8M
6 Rit Capital Partners plc 2.67% 388,000 $16.6M
7 Eagle Health Investments LP 2.61% 369,164 $15.8M
8 Maverick Capital Ltd 2.24% 5,937,553 $253.4M
9 FORA Capital, LLC 2.22% 756,269 $32.3M
10 Compass Capital Management, Inc 2.21% 859,530 $36.7M
11 Bourgeon Capital Management LLC 2.02% 322,069 $13.7M
12 Lgt Capital Partners LTD. 1.98% 915,966 $39.1M
13 Saranac Partners Ltd 1.87% 150,265 $6.4M
14 Rhenman & Partners Asset Management AB 1.81% 450,500 $19.2M
15 EDENTREE ASSET MANAGEMENT Ltd 1.71% 131,600 $5.6M
16 Yakira Capital Management, Inc. 1.70% 140,165 $6.0M
17 Turn8 Private Wealth Inc. 1.69% 56,605 $2.5M
18 Atle Fund Management AB 1.68% 146,381 $6.2M
19 Castlefield Investment Partners LLP 1.65% 56,907 $2.4M
20 Navera Investment Management Ltd. 1.63% 1,427,592 $60.9M
21 Banque Transatlantique SA 1.53% 914,874 $71.3M
22 Stonepine Capital Management, LLC 1.52% 50,000 $3.2M
23 Integral Health Asset Management, LLC 1.52% 900,000 $38.4M
24 Milford Funds Ltd 1.51% 2,169,484 $92.6M
25 Generali Investments Towarzystwo Funduszy Inwestycyjnych 1.46% 85,000 $3.6M
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 — Boston Scientific Corp (BSX)

What does the Smart Money Trend signal show for BSX?

Selling streak — 1 quarter in a row: For 1 consecutive quarter, more hedge funds reduced or closed their BSX positions than added to them. Sustained institutional selling is a meaningful warning sign — these are professionals with deep research teams collectively deciding to exit.

What is the institutional breadth score for BSX?

More sellers than buyers — 48% buying: Last quarter: 967 funds reduced or exited vs 884 that bought or added. When more than half of active funds are selling, it's a caution flag — especially if the stock price hasn't moved down yet.

What is the fund quality score for BSX holders?

Elite ownership — 61% AUM from top-100 funds: 73 of 1658 holders are among the 100 largest funds by AUM, controlling 61% of total institutional value in BSX. When the biggest players dominate the cap table, it signifies deep institutional support — since mega-funds deploy the most rigorous due diligence and capital.

How long have hedge funds held BSX?

59% of holders stayed for 2+ years: 987 out of 1,664 hedge funds have held BSX for over 2 years without selling. Long-term investors are generally harder to shake out during market stress, creating a stable ownership base that limits the risk of sudden capitulation.

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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