Position in BSX
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$2,156,232,609
+$114,989,291 QoQ
Shares Held
50,520,914
+55.3% QoQ
Ownership
3.49%
of shares outstanding
% of Portfolio
1.28%
of 13F equity value
Holder Rank
#4
of 1,474 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority
Sole 98%
Shared 0%
None 2%
Common Shares in BSX Over Time
Shares Held
Position Value (USD)
Position in Medical Devices
Healthcare · as of Jun 30, 2026PRIMECAP MANAGEMENT CO/CA/ holds $3,943,513,953 across 15 Medical Devices names. BSX ranks #1 (54.7% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | BSX |
Boston Scientific Corp
This page
|
50,520,914 | $2,156,232,609 | |
| 2 | GKOS |
GLAUKOS Corp
|
3,040,705 | $424,968,930 | |
| 3 | LIVN |
LivaNova PLC
|
4,168,377 | $342,765,640 | |
| 4 | ZBH |
Zimmer Biomet Holdings, Inc.
|
3,816,680 | $328,577,981 | |
| 5 | EW |
Edwards Lifesciences Corp
|
3,408,291 | $308,314,003 | |
| 6 | SYK |
Stryker Corp
|
677,872 | $213,421,220 | |
| 7 | ABT |
Abbott Laboratories
|
761,900 | $69,134,806 | |
| 8 | BRKR |
Bruker Corp
|
883,100 | $53,144,958 |
All Filings in BSX
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26 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $2,156,232,609 | 50,520,914 | Shares | Sole | 2026-08-14 | |
| 2026-03-31 | $2,041,243,318 | 32,529,774 | Shares | Sole | 2026-05-11 | |
| 2025-12-31 | $2,965,021,144 | 31,096,184 | Shares | Sole | 2026-02-11 | |
| 2025-09-30 | $3,231,757,437 | 33,102,094 | Shares | Sole | 2025-11-12 | |
| 2025-06-30 | $3,723,122,970 | 34,662,722 | Shares | Sole | 2025-08-11 | |
| 2025-03-31 | $3,681,811,912 | 36,496,946 | Shares | Sole | 2025-05-09 | |
| 2024-12-31 | $3,298,557,767 | 36,929,666 | Shares | Sole | 2025-02-10 | |
| 2024-09-30 | $3,169,860,700 | 37,826,500 | Shares | Sole | 2024-11-08 | |
| 2024-06-30 | $2,923,227,287 | 37,959,061 | Shares | Sole | 2024-08-09 | |
| 2024-03-31 | $2,599,035,575 | 37,947,665 | Shares | Sole | 2024-05-14 | |
| 2023-12-31 | $2,191,326,146 | 37,905,659 | Shares | Sole | 2024-02-09 | |
| 2023-09-30 | $1,972,352,923 | 37,355,169 | Shares | Sole | 2023-11-13 | |
| 2023-06-30 | $2,024,533,474 | 37,428,979 | Shares | Sole | 2023-08-11 | |
| 2023-03-31 | $1,917,561,296 | 38,328,229 | Shares | Sole | 2023-05-15 | |
| 2022-12-31 | $1,742,151,515 | 37,651,859 | Shares | Sole | 2023-02-13 | |
| 2022-09-30 | $1,458,196,467 | 37,650,309 | Shares | Sole | 2022-11-14 | |
| 2022-06-30 | $1,409,536,827 | 37,819,609 | Shares | Sole | 2022-08-11 | |
| 2022-03-31 | $1,679,513,073 | 37,920,819 | Shares | Sole | 2022-05-11 | |
| 2021-12-31 | $1,619,278,935 | 38,118,619 | Shares | Sole | 2022-02-11 | |
| 2021-09-30 | $1,718,561,137 | 39,607,309 | Shares | Sole | 2021-11-12 | |
| 2021-06-30 | $1,711,274,228 | 40,020,445 | Shares | Sole | 2021-08-10 | |
| 2021-03-31 | $1,585,126,941 | 41,012,340 | Shares | Sole | 2021-05-14 | |
| 2020-12-31 | $1,418,622,410 | 39,460,985 | Shares | Sole | 2021-02-08 | |
| 2020-09-30 | $1,546,699,342 | 40,478,915 | Shares | Sole | 2020-11-13 | |
| 2020-06-30 | $1,463,451,684 | 41,681,905 | Shares | Sole | 2020-08-13 | |
| 2020-03-31 | $1,380,641,375 | 42,312,025 | Shares | Sole | 2020-05-14 | |
| No filing history on record for this holder in this stock. | ||||||