Position in MASS
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$99,571
+$12,050 QoQ
Shares Held
11,445
-20.0% QoQ
Ownership
0.028%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#72
of 111 holders
Holding Since
Dec 2020
16 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in MASS Over Time
Shares Held
Position Value (USD)
Derivatives in MASS
reported options exposure · as of Dec 31, 2021CallValue
$1,241,760
CallShares
48,000
PutValue
$0
PutShares
0
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 Jun 30, 2026JANE STREET GROUP, LLC holds $1,155,682,201 across 70 Medical Devices names. MASS ranks #51 (0.0% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | BSX |
Boston Scientific Corp
|
12,087,991 | $515,915,454 | |
| 2 | MDT |
Medtronic plc
|
3,524,983 | $275,759,419 | |
| 3 | ABT |
Abbott Laboratories
|
1,009,061 | $91,562,193 | |
| 4 | SYK |
Stryker Corp
|
169,217 | $53,276,278 | |
| 5 | DXCM |
Dexcom Inc
|
750,473 | $50,544,356 | |
| 6 | IRTC |
iRhythm Holdings, Inc.
|
275,262 | $32,742,414 | |
| 7 | ESTA |
Establishment Labs Holdings Inc.
|
361,302 | $31,003,324 | |
| 8 | TXG |
10x Genomics, Inc.
|
752,999 | $28,869,981 |
All Filings in MASS
Export CSV
17 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $99,571 | 11,445 | Shares | Defined | 2026-08-14 | |
| 2026-03-31 | $87,521 | 14,301 | Shares | Defined | 2026-05-12 | |
| 2025-12-31 | $193,173 | 36,795 | Shares | Defined | 2026-02-12 | |
| 2025-06-30 | $341,170 | 47,850 | Shares | Defined | 2025-08-14 | |
| 2024-12-31 | $250,557 | 113,890 | Shares | Defined | 2025-02-14 | |
| 2024-09-30 | $180,574 | 52,039 | Shares | Defined | 2024-11-15 | |
| 2024-06-30 | $445,257 | 86,458 | Shares | Defined | 2024-08-15 | |
| 2024-03-31 | $273,271 | 36,195 | Shares | Defined | 2024-05-16 | |
| 2023-12-31 | $151,469 | 13,500 | Shares | Defined | 2024-02-15 | |
| 2023-09-30 | $188,464 | 28,298 | Shares | Defined | 2023-11-15 | |
| 2023-06-30 | $125,078 | 18,233 | Shares | Defined | 2023-08-14 | |
| 2023-03-31 | $461,845 | 53,703 | Shares | Defined | 2023-05-16 | |
| 2022-06-30 | $378,197 | 18,368 | Shares | Defined | 2022-08-16 | |
| 2021-12-31 | $1,241,760 | 48,000 | Call | Defined | 2022-02-15 | |
| 2021-09-30 | $1,903,265 | 58,526 | Shares | Defined | 2021-11-16 | |
| 2021-09-30 | $3,648,744 | 112,200 | Call | Defined | 2021-11-16 | |
| 2020-12-31 | $765,521 | 13,442 | Shares | Defined | 2021-02-17 | |
| No filing history on record for this holder in this stock. | ||||||