Cliff Asness's BSX Position Overview
Cliff Asness (via Aqr Capital Management LLC) currently holds 1.17 M shares of Boston Scientific Corporation (BSX) worth $114.41 M, representing 0.07% of the portfolio. First purchased in 2012-Q4, this long-term strategic position has been held for 52 quarters.
Based on 13F filings since 2013, Cliff Asness has maintained a long-term strategic position in BSX, representing a significant commitment to this investment thesis. Largest addition occurred in Q2 2013, adding 8.01 M shares. Largest reduction occurred in Q3 2014, reducing 6.79 M shares.
Analysis based on 13F filings available since 2013 Q2
Cliff Asness's Boston Scientific Corporation (BSX) Holding Value Over Time
Track share changes against reported price movement
Quarterly Boston Scientific Corporation (BSX) Trades by Cliff Asness
| Period | Bought/Sold (Sh.) | % Change | Qtr. End Shares | Reported Price |
|---|---|---|---|---|
| Q4 2012 | +4.24 M | Add 0.00% | 4.24 M | $5.73 |
| Q2 2013 | +12.26 M | Add 0.00% | 12.26 M | $9.27 |
| Q3 2013 | -1.08 M | Reduce 8.84% | 11.17 M | $11.74 |
| Q4 2013 | +887,984 | Add 7.95% | 12.06 M | $12.02 |
| Q1 2014 | -459,600 | Reduce 3.81% | 11.6 M | $13.52 |
| Q2 2014 | +80,300 | Add 0.69% | 11.68 M | $12.77 |
| Q3 2014 | -6.79 M | Reduce 58.17% | 4.89 M | $11.81 |
| Q4 2014 | -1.9 M | Reduce 38.92% | 2.98 M | $13.25 |
| Q1 2015 | -1.52 M | Reduce 50.94% | 1.46 M | $17.75 |
| Q2 2015 | +911,244 | Add 62.23% | 2.38 M | $17.70 |
| Q3 2015 | +2.07 M | Add 87.13% | 4.45 M | $16.41 |
| Q4 2015 | -2.19 M | Reduce 49.17% | 2.26 M | $18.44 |
| Q1 2016 | -1.1 M | Reduce 48.83% | 1.16 M | $18.81 |
| Q2 2016 | -171,288 | Reduce 14.82% | 984,820 | $23.37 |
| Q3 2016 | +1.54 M | Add 156.71% | 2.53 M | $23.80 |
| Q4 2016 | +29,528 | Add 1.17% | 2.56 M | $21.63 |
| Q1 2017 | -395,304 | Reduce 15.46% | 2.16 M | $24.87 |
| Q2 2017 | -375,428 | Reduce 17.36% | 1.79 M | $27.72 |
| Q3 2017 | -451,507 | Reduce 25.27% | 1.34 M | $29.17 |
| Q4 2017 | +1.43 M | Add 106.73% | 2.76 M | $24.79 |
| Q1 2018 | +92,265 | Add 3.34% | 2.85 M | $27.32 |
| Q2 2018 | -190,288 | Reduce 6.67% | 2.66 M | $32.70 |
| Q3 2018 | -217,266 | Reduce 8.16% | 2.45 M | $38.50 |
| Q4 2018 | -708,505 | Reduce 28.97% | 1.74 M | $35.34 |
| Q1 2019 | +629,852 | Add 36.26% | 2.37 M | $38.14 |
| Q2 2019 | -977,065 | Reduce 41.28% | 1.39 M | $42.06 |
| Q3 2019 | -1.06 M | Reduce 76.57% | 325,594 | $40.69 |
| Q4 2019 | -82,479 | Reduce 25.33% | 243,115 | $45.22 |
| Q1 2020 | +161,806 | Add 66.56% | 404,921 | $32.63 |
| Q2 2020 | +392,667 | Add 96.97% | 797,588 | $34.33 |
| Q3 2020 | -248,356 | Reduce 31.14% | 549,232 | $37.82 |
| Q4 2020 | +998,933 | Add 181.88% | 1.55 M | $35.58 |
| Q1 2021 | -764,411 | Reduce 49.38% | 783,754 | $38.65 |
| Q2 2021 | -307,364 | Reduce 39.22% | 476,390 | $42.76 |
| Q3 2021 | -101,272 | Reduce 21.26% | 375,118 | $43.39 |
| Q4 2021 | -49,312 | Reduce 13.15% | 325,806 | $42.48 |
| Q1 2022 | -191,259 | Reduce 58.70% | 134,547 | $44.29 |
| Q2 2022 | +5,386 | Add 4.00% | 139,933 | $37.17 |
| Q3 2022 | +56,342 | Add 40.26% | 196,275 | $38.73 |
| Q4 2022 | +30,797 | Add 15.69% | 227,072 | $46.00 |
| Q1 2023 | +33,335 | Add 14.68% | 260,407 | $50.03 |
| Q2 2023 | +208,267 | Add 79.98% | 468,674 | $54.09 |
| Q3 2023 | +68,478 | Add 14.61% | 537,152 | $52.80 |
| Q4 2023 | +273,955 | Add 51.00% | 811,107 | $57.25 |
| Q1 2024 | +42,585 | Add 5.25% | 853,692 | $68.49 |
| Q2 2024 | -151,474 | Reduce 17.74% | 702,218 | $76.75 |
| Q3 2024 | +262,732 | Add 37.41% | 964,950 | $83.27 |
| Q4 2024 | -53,014 | Reduce 5.49% | 911,936 | $89.32 |
| Q1 2025 | +243,893 | Add 26.74% | 1.16 M | $99.00 |
| Q2 2025 | +687,364 | Add 59.47% | 1.84 M | $106.94 |
| Q3 2025 | -671,342 | Reduce 36.42% | 1.17 M | $97.63 |
Cliff Asness's Boston Scientific Corporation Investment FAQs
Cliff Asness first purchased Boston Scientific Corporation (BSX) in Q4 2012, acquiring 4,243,400 shares, as reported in their 13F filing for that period. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Cliff Asness has held Boston Scientific Corporation (BSX) for 52 quarters since Q4 2012. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Cliff Asness's largest addition to Boston Scientific Corporation (BSX) was in Q2 2013, adding 12,257,300 shares worth $113.62 M. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
According to the latest 13F filing for Q3 2025, Cliff Asness's firm, Aqr Capital Management LLC, owns 1,171,851 shares of Boston Scientific Corporation (BSX), valued at approximately $114.41 M. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
As of the Q3 2025 filing, Boston Scientific Corporation (BSX) represents approximately 0.07% of Cliff Asness's publicly disclosed stock portfolio, making it one of their key holdings. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Cliff Asness's peak holding in Boston Scientific Corporation (BSX) was 12,257,300 shares, as reported at the end of Q2 2013. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.