BSX — BOSTON SCIENTIFIC CORP

Ownership history in Qube Research & Technologies Ltd  ·  35 quarters on record

AI Ownership Summary

Qube Research & Technologies Ltd reported BOSTON SCIENTIFIC CORP (BSX) in 35 quarterly 13F filings from 2023 Q4 through 2025 Q4. Peak portfolio weight reached 0.67% in 2025 Q3. The latest visible filing shows BSX at 0.00% of the fund.

This page tracks quarterly shares, estimated market value, portfolio weight, filing dates, and disclosure-aligned stock prices directly from SEC EDGAR 13F filings. Older history is available after unlock; the visible window still shows the most recent pattern.

What this BSX ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was Qube Research & Technologies Ltd's position in BOSTON SCIENTIFIC CORP, and how did that conviction change over time? You can read the holding window, peak weight, latest reported size, disclosure timing, and quarter-by-quarter changes without piecing the story together from raw SEC rows.

Freshest filing
Latest Reported Filing
2025 Q4

BSX was reported at 0.00% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
0.67% in 2025 Q3

Peak weight helps separate a token disclosure from a real conviction holding the fund genuinely cared about.

Time in book
Holding Window
2023 Q4 to 2025 Q4

Longer holding windows often tell a very different story from short-lived tactical trades or one-quarter experiments.

Decision context
Why It Matters
Position size beats headlines

Knowing that a fund owned a stock is useful. Knowing whether it was a 0.20% placeholder or a true high-conviction position is where the signal actually starts.

BSX stock page Qube Research & Technologies Ltd fund profile Qube Research & Technologies Ltd full holdings
How Qube Research & Technologies Ltd held BSX — position size vs. price
% of Fund (quarterly)    BSX price (quarter-end, indexed to 100)
📋 Quarterly Holdings History 21 quarters  ▾
Quarter Action Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2025 Q4 REDUCED 11,800 -5,494,105 -99.8% 0.00% $1.1M 2026-02-14 (Est.) $74.73
2025 Q4 ADDED 5,505,905 +5,469,305 +14943.5% 0.53% $525.0M 2026-02-14 (Est.) $74.73
2025 Q4 ADDED 36,600 +7,900 +27.5% 0.00% $3.5M 2026-02-14 (Est.) $74.73
2025 Q3 REDUCED 28,700 -22,400 -43.8% 0.00% $2.8M 2025-11-14 $102.69
2025 Q3 REDUCED 51,100 -6,541,409 -99.2% 0.01% $5.0M 2025-11-14 $102.69
2025 Q3 ADDED 6,592,509 +1,912,990 +40.9% 0.67% $643.6M 2025-11-14 $102.69
2025 Q2 ADDED 4,679,519 +4,561,719 +3872.4% 0.51% $502.6M 2025-08-14 $104.15
2025 Q2 REDUCED 117,800 -20,200 -14.6% 0.01% $12.7M 2025-08-14 $104.15
2025 Q2 REDUCED 138,000 -2,822,133 -95.3% 0.02% $14.8M 2025-08-14 $104.15
2025 Q1 ADDED 2,960,133 +2,958,633 +197242.2% 0.35% $298.6M 2025-05-15 $104.86
2025 Q1 REDUCED 1,500 -238,700 -99.4% 0.00% $151K 2025-05-15 $104.86
2025 Q1 REDUCED 240,200 -55,300 -18.7% 0.03% $24.2M 2025-05-15 $104.86
2024 Q4 ADDED 295,500 +259,200 +714.0% 0.03% $26.4M 2025-02-14 $106.11
2024 Q4 REDUCED 36,300 -1,008,758 -96.5% 0.00% $3.2M 2025-02-14 $106.11
2024 Q4 ADDED 1,045,058 +1,008,458 +2755.3% 0.12% $93.3M 2025-02-14 $106.11
2024 Q3 REDUCED 36,600 -117,200 -76.2% 0.00% $3.1M 2024-11-14 $87.59
2024 Q3 REDUCED 153,800 -1,686,864 -91.6% 0.02% $12.9M 2024-11-14 $87.59
2024 Q3 ADDED 1,840,664 +1,681,232 +1054.5% 0.23% $154.2M 2024-11-14 $87.59
2024 Q2 REDUCED 159,432 -107,909 -40.4% 0.02% $12.3M 2024-08-14 $76.42
2024 Q1 REDUCED 267,341 -324,996 -54.9% 0.03% $18.3M 2024-05-14 $73.49
2023 Q4 REDUCED 592,337 -89,906 -13.2% 0.07% $34.2M 2024-02-13 $64.97
14 older quarters hidden  —  Sign in free or upgrade to Premium to see full history

🏢 Other funds also holding BSX

As of 2025 Q4 — sorted by position size

Bollard Group LLC 3Y 7Y 45.28% SurgoCap Partners LP 6.76% Tri Locum Partners LP 3Y 6.44% ECOFI INVESTISSEMENTS SA 6.18% Catalio Capital Management, LP 6.07% Egerton Capital (UK) LLP 3Y 7Y 5.58% FACT Capital, LP 3Y 5.11% ORBIMED ADVISORS LLC 3Y 7Y 4.71% Iron Triangle Partners LP 3Y 4.59% Parkman Healthcare Partners LLC 3Y 4.54%

FAQ About Qube Research & Technologies Ltd and BSX

These are the practical questions this page is built to answer before you even open the full history table.

How long has Qube Research & Technologies Ltd reported owning BSX?

Qube Research & Technologies Ltd reported BSX across 21 quarterly 13F filings, from 2023 Q4 through 2025 Q4.

What was the largest reported BSX position in Qube Research & Technologies Ltd's portfolio?

The largest reported portfolio weight for BSX was 0.67% in 2025 Q3.

What is the latest reported BSX position on this page?

The most recent filing on this page is 2025 Q4, when Qube Research & Technologies Ltd reported 11,800 shares, equal to 0.00% of portfolio, with an estimated market value of $1.1M.

What does the chart on this BSX ownership page compare?

The chart compares Qube Research & Technologies Ltd's quarterly BSX portfolio weight with the stock's indexed share price, so you can see whether the fund was building, trimming, or holding the position as price moved.

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