Position in MLSS
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$48,469
+$6,950 QoQ
Shares Held
167,135
+8.7% QoQ
Ownership
0.188%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Dec 2020
18 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in MLSS Over Time
Shares Held
Position Value (USD)
Derivatives in MLSS
reported options exposure · as of Jun 30, 2025CallValue
$26,112
CallShares
40,800
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 Instruments & Supplies
Healthcare · as of Jun 30, 2026CITADEL ADVISORS LLC holds $1,313,944,868 across 42 Medical Instruments & Supplies names.
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | COO |
Cooper Companies, Inc.
|
3,872,397 | $277,689,588 | |
| 2 | ISRG |
Intuitive Surgical Inc
|
470,076 | $186,939,823 | |
| 3 | TFX |
Teleflex Inc
|
1,140,950 | $144,626,822 | |
| 4 | WST |
West Pharmaceutical Services Inc
|
352,769 | $126,644,071 | |
| 5 | RMD |
Resmed Inc
|
508,284 | $99,054,385 | |
| 6 | ICUI |
Icu Medical Inc/De
|
536,225 | $78,610,585 | |
| 7 | MMSI |
Merit Medical Systems Inc
|
909,863 | $63,089,900 | |
| 8 | RGEN |
Repligen Corp
|
376,309 | $51,343,599 |
All Filings in MLSS
Export CSV
33 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $48,469 | 167,135 | Shares | Defined | 2026-05-15 | |
| 2025-12-31 | $41,519 | 153,775 | Shares | Defined | 2026-02-17 | |
| 2025-06-30 | $25,370 | 39,642 | Shares | Defined | 2025-08-14 | |
| 2025-06-30 | $26,112 | 40,800 | Call | Defined | 2025-08-14 | |
| 2025-03-31 | $465 | 500 | Put | Defined | 2025-05-15 | |
| 2025-03-31 | $12,369 | 13,300 | Call | Defined | 2025-05-15 | |
| 2024-12-31 | $59,940 | 62,438 | Shares | Defined | 2025-02-14 | |
| 2024-12-31 | $24,480 | 25,500 | Call | Defined | 2025-02-14 | |
| 2024-09-30 | $56,602 | 62,200 | Call | Defined | 2024-11-14 | |
| 2024-09-30 | $21,079 | 23,164 | Shares | Defined | 2024-11-14 | |
| 2024-06-30 | $36,946 | 54,333 | Shares | Defined | 2024-08-14 | |
| 2024-06-30 | $3,536 | 5,200 | Call | Defined | 2024-08-14 | |
| 2024-03-31 | $24,829 | 40,047 | Shares | Defined | 2024-05-15 | |
| 2023-12-31 | $276 | 400 | Put | Defined | 2024-02-14 | |
| 2023-12-31 | $33,525 | 48,588 | Shares | Defined | 2024-02-14 | |
| 2023-09-30 | $828 | 900 | Call | Defined | 2023-11-14 | |
| 2023-09-30 | $460 | 500 | Put | Defined | 2023-11-14 | |
| 2023-09-30 | $36,702 | 39,894 | Shares | Defined | 2023-11-14 | |
| 2023-06-30 | $348 | 400 | Call | Defined | 2023-08-14 | |
| 2023-06-30 | $78,075 | 89,742 | Shares | Defined | 2023-08-14 | |
| 2022-12-31 | $1,056 | 2,200 | Put | Defined | 2023-02-14 | |
| 2022-12-31 | $35,084 | 73,092 | Shares | Defined | 2023-02-14 | |
| 2022-12-31 | $1,200 | 2,500 | Call | Defined | 2023-02-14 | |
| 2022-09-30 | $45,275 | 57,311 | Shares | Defined | 2022-11-14 | |
| 2022-06-30 | $143,907 | 156,422 | Shares | Defined | 2022-08-15 | |
| 2022-03-31 | $19,682 | 12,949 | Shares | Defined | 2022-05-16 | |
| 2022-03-31 | $18,392 | 12,100 | Put | Defined | 2022-05-16 | |
| 2022-03-31 | $32,680 | 21,500 | Call | Defined | 2022-05-16 | |
| 2021-12-31 | $87,038 | 42,252 | Shares | Defined | 2022-02-14 | |
| 2021-12-31 | $23,690 | 11,500 | Put | Defined | 2022-02-14 | |
| 2021-06-30 | $48,755 | 19,900 | Put | Defined | 2021-08-16 | |
| 2021-06-30 | $62,048 | 25,326 | Shares | Defined | 2021-08-16 | |
| 2020-12-31 | $62,614 | 29,535 | Shares | Defined | 2021-02-16 | |
| No filing history on record for this holder in this stock. | ||||||