← Super investors
BSX
Boston Scientific Corp
6 super-investor ownerscombined $577Mlargest position 3.1%
1 TRIM1 EXIT
Cohort owners over time
2016Q4 → 2026Q1How many of the cohort members held this stock each quarter.
Now: 1
Peak: 2
Owners (6) · click any column to sort
| #↑ | Manager | % Port. | History | Value | Shares |
|---|---|---|---|---|---|
| 1 | Joel Greenblatt | 0.2% | 40q | $265M | 4,217,314 |
| 2 | Lee Ainslie | 3.1% | 11q | $263M | 4,195,089 |
| 3 | Polen Capital Management | 0.3% | 3q | $36M | 579,739 |
| 4 | Stephen Mandel | 0.1% | 2q | $7M | 104,655 |
| 5 | Dodge & Cox Funds | <0.1% | 40q | $6M | 88,885 |
| 6 | Mairs & Power Funds | <0.1% | 19q | $639K | 10,176 |
Recent activity (2)
| Manager | Move | % Port. | Δ Shares | Value | Filed |
|---|---|---|---|---|---|
| Stephen Mandel | TRIM | 0.1% | -48% | $7M | May 15, 2026 |
| John Armitage | EXIT | 5.6% | -100% | $0 | May 13, 2026 |
Long US equity 13F-HR filings only. CUSIP 101137107. Not investment advice.