Position in GKOS
as of Mar 31, 2026
· filed May 12, 2026
Position Value
$0
+$0 QoQ
Shares Held
0
Ownership
0.000%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Jun 2020
24 quarters on record
Common Shares in GKOS Over Time
Shares Held
Position Value (USD)
Derivatives in GKOS
reported options exposure · as of Mar 31, 2026CallValue
$0
CallShares
0
PutValue
$59,449,852
PutShares
552,200
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, 2026JANE STREET GROUP, LLC holds $517,213,370 across 57 Medical Devices names.
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | BSX |
Boston Scientific Corp
|
4,032,117 | $253,015,341 | |
| 2 | DXCM |
Dexcom Inc
|
741,669 | $46,576,812 | |
| 3 | ESTA |
Establishment Labs Holdings Inc.
|
627,700 | $35,640,805 | |
| 4 | EW |
Edwards Lifesciences Corp
|
390,333 | $31,257,865 | |
| 5 | MDT |
Medtronic plc
|
349,874 | $30,316,580 | |
| 6 | ABT |
Abbott Laboratories
|
160,022 | $16,429,457 | |
| 7 | IRTC |
iRhythm Holdings, Inc.
|
112,864 | $13,320,209 | |
| 8 | ATEC |
Alphatec Holdings, Inc.
|
878,549 | $9,558,612 |
All Filings in GKOS
Export CSV
44 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $59,449,852 | 552,200 | Put | Defined | 2026-05-12 | |
| 2025-12-31 | $214,529 | 1,900 | Call | Defined | 2026-02-12 | |
| 2025-12-31 | $62,269,865 | 551,500 | Put | Defined | 2026-02-12 | |
| 2025-09-30 | $28,795,305 | 353,100 | Put | Defined | 2025-11-14 | |
| 2025-09-30 | $619,780 | 7,600 | Call | Defined | 2025-11-14 | |
| 2025-09-30 | $25,050,772 | 307,183 | Shares | Defined | 2025-11-14 | |
| 2025-06-30 | $36,471,699 | 353,100 | Put | Defined | 2025-08-14 | |
| 2025-06-30 | $1,105,203 | 10,700 | Call | Defined | 2025-08-14 | |
| 2025-06-30 | $8,900,602 | 86,171 | Shares | Defined | 2025-08-14 | |
| 2025-03-31 | $17,074,097 | 173,482 | Shares | Defined | 2025-05-19 | |
| 2025-03-31 | $4,330,480 | 44,000 | Call | Defined | 2025-05-19 | |
| 2025-03-31 | $39,230,212 | 398,600 | Put | Defined | 2025-05-19 | |
| 2024-12-31 | $2,949,469 | 19,671 | Shares | Defined | 2025-02-14 | |
| 2024-12-31 | $9,011,394 | 60,100 | Call | Defined | 2025-02-14 | |
| 2024-12-31 | $2,189,124 | 14,600 | Put | Defined | 2025-02-14 | |
| 2024-09-30 | $5,060,595 | 38,844 | Shares | Defined | 2024-11-15 | |
| 2024-09-30 | $807,736 | 6,200 | Call | Defined | 2024-11-15 | |
| 2024-09-30 | $521,120 | 4,000 | Put | Defined | 2024-11-15 | |
| 2024-06-30 | $9,103,481 | 76,920 | Shares | Defined | 2024-08-15 | |
| 2024-03-31 | $4,460,199 | 47,303 | Shares | Defined | 2024-05-16 | |
| 2023-12-31 | $8,972,591 | 112,877 | Shares | Defined | 2024-02-15 | |
| 2023-09-30 | $666,113 | 8,852 | Shares | Defined | 2023-11-15 | |
| 2023-06-30 | $2,399,349 | 33,694 | Shares | Defined | 2023-08-14 | |
| 2023-03-31 | $758,363 | 15,137 | Shares | Defined | 2023-05-16 | |
| 2022-12-31 | $1,536,355 | 35,173 | Shares | Defined | 2023-02-15 | |
| 2022-09-30 | $4,128,867 | 77,552 | Shares | Defined | 2022-11-15 | |
| 2022-06-30 | $2,669,468 | 58,773 | Shares | Defined | 2022-08-16 | |
| 2022-03-31 | $534,314 | 9,241 | Shares | Defined | 2022-05-17 | |
| 2022-03-31 | $4,047,400 | 70,000 | Put | Defined | 2022-05-17 | |
| 2022-03-31 | $5,469,772 | 94,600 | Call | Defined | 2022-05-17 | |
| 2021-12-31 | $500,437 | 11,261 | Shares | Defined | 2022-02-15 | |
| 2021-12-31 | $1,426,524 | 32,100 | Call | Defined | 2022-02-15 | |
| 2021-12-31 | $386,628 | 8,700 | Put | Defined | 2022-02-15 | |
| 2021-09-30 | $2,543,376 | 52,800 | Call | Defined | 2021-11-16 | |
| 2021-09-30 | $1,699,099 | 35,273 | Shares | Defined | 2021-11-16 | |
| 2021-09-30 | $563,589 | 11,700 | Put | Defined | 2021-11-16 | |
| 2021-06-30 | $954,845 | 11,256 | Shares | Defined | 2021-08-16 | |
| 2021-06-30 | $364,769 | 4,300 | Call | Defined | 2021-08-16 | |
| 2021-06-30 | $1,213,069 | 14,300 | Put | Defined | 2021-08-16 | |
| 2021-03-31 | $595,903 | 7,100 | Call | Defined | 2021-05-18 | |
| 2021-03-31 | $980,554 | 11,683 | Shares | Defined | 2021-05-18 | |
| 2020-12-31 | $301,040 | 4,000 | Call | Defined | 2021-02-17 | |
| 2020-09-30 | $796,677 | 16,088 | Shares | Defined | 2020-11-17 | |
| 2020-06-30 | $351,618 | 9,152 | Shares | Defined | 2020-08-17 | |
| No filing history on record for this holder in this stock. | ||||||