# Boston Scientific (BSX): value investors who own it

3 value investors held Boston Scientific in their Q3 2026 13F, led by Dodge & Cox, Mairs & Power, Polen Capital Management.

## 13F holders

| Manager | Portfolio | Value | Change | Quarters held |
| --- | --- | --- | --- | --- |
| Dodge & Cox | 0.0% | $3.7m | Trimmed -1.6% | 53 |
| Mairs & Power | 0.0% | $423k | Trimmed -2.6% | 16 |
| Polen Capital Management | 0.0% | $203k | Trimmed -99% | 4 |

## Directors buying and selling (Form 4, last 12 months)

| Date | Who | Role | Bought or sold | Shares | Value |
| --- | --- | --- | --- | --- | --- |
| 2026-08-25 | Morano Susan E | Director | Bought | 2040 | $100k |
| 2026-08-05 | Habiger David C | Director | Bought | 2100 | $100k |
| 2026-08-04 | Habiger David C | Director | Bought | 140 | $7k |
| 2026-08-03 | Mahoney Michael F | Chairman, President & CEO | Bought | 186240 | $9.0m |
| 2026-08-03 | Habiger David C | Director | Bought | 1042 | $50k |
| 2026-07-31 | LUDWIG EDWARD J | Director | Bought | 5000 | $227k |

Source: SEC filings, via moatshark (https://www.moatshark.com/s/bsx). Values traded and returns are estimates. Not investment advice. Built 2026-10-21.