Position in WST
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$78,111,579
+$1,633,295 QoQ
Shares Held
217,581
-28.7% QoQ
Ownership
0.309%
of shares outstanding
% of Portfolio
0.05%
of 13F equity value
Holder Rank
#59
of 827 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in WST Over Time
Shares Held
Position Value (USD)
Derivatives in WST
reported options exposure · as of Jun 30, 2026CallValue
$11,488,000
CallShares
32,000
PutValue
$2,189,900
PutShares
6,100
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 Instruments & Supplies
Healthcare · as of Jun 30, 2026JANE STREET GROUP, LLC holds $427,705,707 across 32 Medical Instruments & Supplies names. WST ranks #2 (18.3% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | ISRG |
Intuitive Surgical Inc
|
619,674 | $246,431,954 | |
| 2 | WST |
West Pharmaceutical Services Inc
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|
217,581 | $78,111,579 | |
| 3 | SOLV |
Solventum Corp
|
666,327 | $51,407,127 | |
| 4 | COO |
Cooper Companies, Inc.
|
145,909 | $10,463,133 | |
| 5 | ICUI |
Icu Medical Inc/De
|
47,824 | $7,010,998 | |
| 6 | NVST |
Envista Holdings Corp
|
213,633 | $5,629,228 | |
| 7 | BLFS |
Biolife Solutions Inc
|
183,061 | $5,169,642 | |
| 8 | RGEN |
Repligen Corp
|
36,759 | $5,015,397 |
All Filings in WST
Export CSV
50 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $11,488,000 | 32,000 | Call | Defined | 2026-08-14 | |
| 2026-06-30 | $2,189,900 | 6,100 | Put | Defined | 2026-08-14 | |
| 2026-06-30 | $78,111,579 | 217,581 | Shares | Defined | 2026-08-14 | |
| 2026-03-31 | $8,722,272 | 34,800 | Call | Defined | 2026-05-12 | |
| 2026-03-31 | $76,478,284 | 305,132 | Shares | Defined | 2026-05-12 | |
| 2026-03-31 | $1,829,672 | 7,300 | Put | Defined | 2026-05-12 | |
| 2025-12-31 | $1,183,102 | 4,300 | Put | Defined | 2026-02-12 | |
| 2025-12-31 | $6,520,818 | 23,700 | Call | Defined | 2026-02-12 | |
| 2025-12-31 | $60,460,913 | 219,746 | Shares | Defined | 2026-02-12 | |
| 2025-09-30 | $9,508,149 | 36,245 | Shares | Defined | 2025-11-14 | |
| 2025-09-30 | $4,013,649 | 15,300 | Put | Defined | 2025-11-14 | |
| 2025-09-30 | $23,294,904 | 88,800 | Call | Defined | 2025-11-14 | |
| 2025-06-30 | $27,743,840 | 126,800 | Call | Defined | 2025-08-14 | |
| 2025-06-30 | $4,113,440 | 18,800 | Put | Defined | 2025-08-14 | |
| 2025-06-30 | $7,796,500 | 35,633 | Shares | Defined | 2025-08-14 | |
| 2025-03-31 | $11,283,552 | 50,400 | Call | Defined | 2025-05-19 | |
| 2025-03-31 | $19,276,068 | 86,100 | Put | Defined | 2025-05-19 | |
| 2024-12-31 | $28,104,648 | 85,800 | Put | Defined | 2025-02-14 | |
| 2024-12-31 | $6,965,890 | 21,266 | Shares | Defined | 2025-02-14 | |
| 2024-12-31 | $8,451,048 | 25,800 | Call | Defined | 2025-02-14 | |
| 2024-09-30 | $52,467,968 | 174,800 | Put | Defined | 2024-11-15 | |
| 2024-09-30 | $19,572,532 | 65,207 | Shares | Defined | 2024-11-15 | |
| 2024-09-30 | $35,148,736 | 117,100 | Call | Defined | 2024-11-15 | |
| 2024-06-30 | $23,232,534 | 70,532 | Shares | Defined | 2024-08-15 | |
| 2024-03-31 | $2,586,359 | 6,536 | Shares | Defined | 2024-05-16 | |
| 2023-12-31 | $23,655,421 | 67,180 | Shares | Defined | 2024-02-15 | |
| 2023-09-30 | $9,720,189 | 25,906 | Shares | Defined | 2023-11-15 | |
| 2023-06-30 | $5,665,527 | 14,813 | Shares | Defined | 2023-08-14 | |
| 2023-03-31 | $10,596,783 | 30,585 | Shares | Defined | 2023-05-16 | |
| 2022-12-31 | $3,005,654 | 12,771 | Shares | Defined | 2023-02-15 | |
| 2022-09-30 | $10,127,175 | 41,154 | Shares | Defined | 2022-11-15 | |
| 2022-06-30 | $6,093,964 | 20,154 | Shares | Defined | 2022-08-16 | |
| 2022-03-31 | $16,181,974 | 39,400 | Put | Defined | 2022-05-17 | |
| 2022-03-31 | $12,046,944 | 29,332 | Shares | Defined | 2022-05-17 | |
| 2022-03-31 | $10,883,815 | 26,500 | Call | Defined | 2022-05-17 | |
| 2021-12-31 | $28,281,303 | 60,300 | Put | Defined | 2022-02-15 | |
| 2021-12-31 | $6,619,606 | 14,114 | Shares | Defined | 2022-02-15 | |
| 2021-12-31 | $7,082,051 | 15,100 | Call | Defined | 2022-02-15 | |
| 2021-09-30 | $9,965,651 | 23,474 | Shares | Defined | 2021-11-16 | |
| 2021-09-30 | $23,222,338 | 54,700 | Put | Defined | 2021-11-16 | |
| 2021-09-30 | $11,759,758 | 27,700 | Call | Defined | 2021-11-16 | |
| 2021-06-30 | $11,491,200 | 32,000 | Put | Defined | 2021-08-16 | |
| 2021-06-30 | $4,740,120 | 13,200 | Call | Defined | 2021-08-16 | |
| 2021-06-30 | $9,179,313 | 25,562 | Shares | Defined | 2021-08-16 | |
| 2021-03-31 | $9,510,356 | 33,751 | Shares | Defined | 2021-05-18 | |
| 2020-12-31 | $1,637,815 | 5,781 | Shares | Defined | 2021-02-17 | |
| 2020-12-31 | $679,944 | 2,400 | Call | Defined | 2021-02-17 | |
| 2020-09-30 | $2,336,650 | 8,500 | Call | Defined | 2020-11-17 | |
| 2020-09-30 | $797,210 | 2,900 | Put | Defined | 2020-11-17 | |
| 2020-09-30 | $2,121,677 | 7,718 | Shares | Defined | 2020-11-17 | |
| No filing history on record for this holder in this stock. | ||||||