Parnassus Investments, LLC / BSX
Parnassus Investments, LLC’s Boston Scientific Corp Position
Does Parnassus Investments, LLC own Boston Scientific Corp (BSX)? Yes — 8.00M shares worth $502M (+1.47% of its 13F portfolio) as of Q1 2026, up from 7.90M shares the prior filed quarter.
Position Value
$502M
Q1 2026
Shares
8.00M
% of Portfolio
+1.47%
Quarters Held
20
currently held
Position History BSX
Reported value by quarter
| Quarter | Shares | Value | % of Portfolio |
|---|---|---|---|
| Q1 2026 | 8.00M | $502M | +1.47% |
| Q4 2025 | 7.90M | $753M | +1.95% |
| Q3 2025 | 6.88M | $672M | +1.55% |
| Q2 2025 | 16.0K | $2M | 0.00% |
| Q1 2025 | 15.1K | $2M | 0.00% |
| Q4 2024 | 14.9K | $1M | 0.00% |
| Q3 2024 | 14.8K | $1M | 0.00% |
| Q2 2024 | 13.5K | $1M | 0.00% |
| Q1 2024 | 11.5K | $784,827 | 0.00% |
| Q4 2023 | 9.7K | $561,393 | 0.00% |
| Q3 2023 | 7.7K | $405,134 | 0.00% |
| Q2 2023 | 7.4K | $401,835 | 0.00% |
| Q1 2023 | 8.1K | $403,892 | 0.00% |
| Q4 2022 | 5.2K | $238,614 | 0.00% |
| Q2 2022 | 15.69M | $585M | +1.40% |
| Q1 2022 | 15.73M | $697M | +1.41% |
| Q4 2021 | 15.54M | $660M | +1.27% |
| Q3 2021 | 15.68M | $680M | +1.43% |
| Q2 2021 | 15.11M | $646M | +1.41% |
| Q1 2021 | 8.85M | $342M | +0.83% |
Common-stock position only; options are excluded. Quarters where the fund filed no 13F or reported no position are absent. See Parnassus Investments, LLC’s full portfolio or all institutional holders of BSX.