Position in BSX
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$272,197,201
-$801,900,525 QoQ
Shares Held
4,337,804
-61.5% QoQ
Ownership
0.292%
of shares outstanding
% of Portfolio
0.24%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
25 quarters on record
Voting authority
Sole 100.ToString("F0")%
Shared 0.ToString("F0")%
None 0.ToString("F0")%
Common Shares in BSX Over Time
Shares Held
Position Value (USD)
Derivatives in BSX
reported options exposure · as of Mar 31, 2026CallValue
$52,245,650
CallShares
832,600
PutValue
$10,403,950
PutShares
165,800
Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.
Position in Medical Devices
Healthcare · as of Mar 31, 2026MILLENNIUM MANAGEMENT LLC holds $2,438,858,395 across 79 Medical Devices names. BSX ranks #2 (11.2% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | PEN |
Penumbra Inc
|
1,098,136 | $360,594,918 | |
| 2 | BSX |
Boston Scientific Corp
This page
|
4,337,804 | $272,197,201 | |
| 3 | IRTC |
iRhythm Holdings, Inc.
|
1,608,014 | $189,777,812 | |
| 4 | MASI |
Masimo Corp
|
988,853 | $175,887,283 | |
| 5 | LIVN |
LivaNova PLC
|
2,438,671 | $155,001,928 | |
| 6 | EW |
Edwards Lifesciences Corp
|
1,796,821 | $143,889,425 | |
| 7 | GMED |
Globus Medical Inc
|
1,643,352 | $141,591,208 | |
| 8 | ABT |
Abbott Laboratories
|
1,323,342 | $135,867,523 |
All Filings in BSX
Export CSV
50 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $10,403,950 | 165,800 | Put | Sole | 2026-05-15 | |
| 2026-03-31 | $52,245,650 | 832,600 | Call | Sole | 2026-05-15 | |
| 2026-03-31 | $272,197,201 | 4,337,804 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $1,074,097,726 | 11,264,790 | Shares | Sole | 2026-02-17 | |
| 2025-12-31 | $120,264,955 | 1,261,300 | Call | Sole | 2026-02-17 | |
| 2025-12-31 | $5,778,210 | 60,600 | Put | Sole | 2026-02-17 | |
| 2025-09-30 | $4,315,246 | 44,200 | Put | Sole | 2025-11-14 | |
| 2025-09-30 | $832,278,274 | 8,524,821 | Shares | Sole | 2025-11-14 | |
| 2025-09-30 | $37,392,290 | 383,000 | Call | Sole | 2025-11-14 | |
| 2025-06-30 | $34,231,567 | 318,700 | Put | Sole | 2025-08-14 | |
| 2025-06-30 | $497,954,800 | 4,636,019 | Shares | Sole | 2025-08-14 | |
| 2025-06-30 | $32,147,813 | 299,300 | Call | Sole | 2025-08-14 | |
| 2025-03-31 | $16,160,976 | 160,200 | Call | Sole | 2025-05-15 | |
| 2025-03-31 | $81,329,456 | 806,200 | Put | Sole | 2025-05-15 | |
| 2025-03-31 | $841,758,457 | 8,344,156 | Shares | Sole | 2025-05-15 | |
| 2024-12-31 | $815,377,984 | 9,128,728 | Shares | Sole | 2025-02-14 | |
| 2024-12-31 | $63,193,900 | 707,500 | Put | Sole | 2025-02-14 | |
| 2024-12-31 | $11,665,192 | 130,600 | Call | Sole | 2025-02-14 | |
| 2024-09-30 | $951,945,541 | 11,359,732 | Shares | Sole | 2024-11-14 | |
| 2024-09-30 | $16,734,860 | 199,700 | Call | Sole | 2024-11-14 | |
| 2024-09-30 | $56,900,200 | 679,000 | Put | Sole | 2024-11-14 | |
| 2024-06-30 | $95,877,450 | 1,245,000 | Put | Sole | 2024-08-14 | |
| 2024-06-30 | $22,810,362 | 296,200 | Call | Sole | 2024-08-14 | |
| 2024-06-30 | $867,855,184 | 11,269,383 | Shares | Sole | 2024-08-14 | |
| 2024-03-31 | $649,262,392 | 9,479,667 | Shares | Sole | 2024-05-15 | |
| 2024-03-31 | $60,620,499 | 885,100 | Put | Sole | 2024-05-15 | |
| 2024-03-31 | $30,067,110 | 439,000 | Call | Sole | 2024-05-15 | |
| 2023-12-31 | $425,960,208 | 7,368,279 | Shares | Sole | 2024-02-14 | |
| 2023-12-31 | $47,253,894 | 817,400 | Call | Sole | 2024-02-14 | |
| 2023-12-31 | $103,873,008 | 1,796,800 | Put | Sole | 2024-02-14 | |
| 2023-09-30 | $587,991,043 | 11,136,194 | Shares | Sole | 2023-11-14 | |
| 2023-09-30 | $78,909,600 | 1,494,500 | Put | Sole | 2023-11-14 | |
| 2023-09-30 | $45,381,600 | 859,500 | Call | Sole | 2023-11-14 | |
| 2023-06-30 | $72,972,819 | 1,349,100 | Put | Sole | 2023-08-14 | |
| 2023-06-30 | $23,561,604 | 435,600 | Call | Sole | 2023-08-14 | |
| 2023-06-30 | $552,803,910 | 10,220,076 | Shares | Sole | 2023-08-14 | |
| 2023-03-31 | $27,781,659 | 555,300 | Call | Sole | 2023-05-15 | |
| 2023-03-31 | $67,310,362 | 1,345,400 | Put | Sole | 2023-05-15 | |
| 2023-03-31 | $504,551,699 | 10,084,983 | Shares | Sole | 2023-05-15 | |
| 2022-12-31 | $18,697,707 | 404,100 | Call | Sole | 2023-02-14 | |
| 2022-12-31 | $425,448,624 | 9,194,913 | Shares | Sole | 2023-02-14 | |
| 2022-12-31 | $58,781,408 | 1,270,400 | Put | Sole | 2023-02-14 | |
| 2022-09-30 | $13,292,136 | 343,200 | Call | Sole | 2022-11-14 | |
| 2022-09-30 | $39,407,775 | 1,017,500 | Put | Sole | 2022-11-14 | |
| 2022-09-30 | $318,736,397 | 8,229,703 | Shares | Sole | 2022-11-14 | |
| 2022-06-30 | $19,950,631 | 535,300 | Put | Sole | 2022-08-15 | |
| 2022-06-30 | $330,655,228 | 8,871,887 | Shares | Sole | 2022-08-15 | |
| 2022-06-30 | $12,299,100 | 330,000 | Call | Sole | 2022-08-15 | |
| 2022-03-31 | $14,757,428 | 333,200 | Put | Sole | 2022-05-16 | |
| 2022-03-31 | $171,382,502 | 3,869,553 | Shares | Sole | 2022-05-16 | |
| No filing history on record for this holder in this stock. | ||||||