Position in COO
as of Jun 30, 2026
· filed Aug 3, 2026
Position Value
$0
-$216,287 QoQ
Shares Held
0
-100.0% QoQ
Ownership
0.000%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
20 quarters on record
Common Shares in COO Over Time
Shares Held
Position Value (USD)
Derivatives in COO
reported options exposure · as of Jun 30, 2026CallValue
$824,665
CallShares
11,500
PutValue
$767,297
PutShares
10,700
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, 2026Walleye Trading LLC holds $11,658,016 across 7 Medical Instruments & Supplies names.
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | RGEN |
Repligen Corp
|
43,268 | $5,903,485 | |
| 2 | BAX |
Baxter International Inc
|
140,796 | $3,001,770 | |
| 3 | WRBY |
Warby Parker Inc.
|
65,415 | $1,984,691 | |
| 4 | ALC |
Alcon Inc
|
7,235 | $485,468 | |
| 5 | STAA |
Staar Surgical Co
|
8,688 | $249,258 | |
| 6 | AVTR |
Avantor, Inc.
|
3,187 | $31,551 | |
| 7 | XRAY |
DENTSPLY SIRONA Inc.
|
169 | $1,793 |
All Filings in COO
Export CSV
42 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $767,297 | 10,700 | Put | Sole | 2026-08-03 | |
| 2026-06-30 | $824,665 | 11,500 | Call | Sole | 2026-08-03 | |
| 2026-03-31 | $216,287 | 3,025 | Shares | Sole | 2026-05-11 | |
| 2026-03-31 | $14,300 | 200 | Call | Sole | 2026-05-11 | |
| 2026-03-31 | $57,200 | 800 | Put | Sole | 2026-05-11 | |
| 2025-12-31 | $16,392 | 200 | Call | Sole | 2026-02-13 | |
| 2025-12-31 | $442,584 | 5,400 | Put | Sole | 2026-02-13 | |
| 2025-06-30 | $725,832 | 10,200 | Call | Sole | 2025-08-13 | |
| 2025-06-30 | $113,856 | 1,600 | Put | Sole | 2025-08-13 | |
| 2025-06-30 | $221,094 | 3,107 | Shares | Sole | 2025-08-13 | |
| 2024-12-31 | $689,475 | 7,500 | Call | Sole | 2025-02-13 | |
| 2024-12-31 | $505,615 | 5,500 | Put | Sole | 2025-02-13 | |
| 2024-09-30 | $1,169,604 | 10,600 | Call | Sole | 2024-11-14 | |
| 2024-09-30 | $1,831,644 | 16,600 | Put | Sole | 2024-11-14 | |
| 2024-06-30 | $1,746,000 | 20,000 | Call | Sole | 2024-08-14 | |
| 2024-06-30 | $1,108,710 | 12,700 | Put | Sole | 2024-08-14 | |
| 2024-06-30 | $54,475 | 624 | Shares | Sole | 2024-08-14 | |
| 2024-03-31 | $527,592 | 5,200 | Call | Sole | 2024-05-15 | |
| 2024-03-31 | $21,002 | 207 | Shares | Sole | 2024-05-15 | |
| 2024-03-31 | $1,562,484 | 15,400 | Put | Sole | 2024-05-15 | |
| 2023-12-31 | $719,036 | 1,900 | Put | Sole | 2024-02-14 | |
| 2023-12-31 | $1,161,432 | 3,069 | Shares | Sole | 2024-02-14 | |
| 2023-12-31 | $264,908 | 700 | Call | Sole | 2024-02-14 | |
| 2023-09-30 | $95,403 | 300 | Call | Sole | 2023-11-21 | |
| 2023-09-30 | $680,223 | 2,139 | Shares | Sole | 2023-11-21 | |
| 2023-06-30 | $879,204 | 2,293 | Shares | Sole | 2023-08-14 | |
| 2023-06-30 | $38,343 | 100 | Call | Sole | 2023-08-14 | |
| 2023-06-30 | $153,372 | 400 | Put | Sole | 2023-08-14 | |
| 2023-03-31 | $23,521 | 63 | Shares | Sole | 2023-05-15 | |
| 2023-03-31 | $1,269,424 | 3,400 | Call | Sole | 2023-05-15 | |
| 2022-12-31 | $2,248,556 | 6,800 | Call | Sole | 2023-02-14 | |
| 2021-09-30 | $289,317 | 700 | Call | Sole | 2021-11-15 | |
| 2021-06-30 | $515,151 | 1,300 | Call | Sole | 2021-08-16 | |
| 2021-03-31 | $499,317 | 1,300 | Call | Sole | 2021-05-17 | |
| 2021-03-31 | $159,013 | 414 | Shares | Sole | 2021-05-17 | |
| 2020-12-31 | $108,996 | 300 | Put | Sole | 2021-02-16 | |
| 2020-12-31 | $227,801 | 627 | Shares | Sole | 2021-02-16 | |
| 2020-09-30 | $809,088 | 2,400 | Call | Sole | 2020-11-16 | |
| 2020-09-30 | $404,544 | 1,200 | Put | Sole | 2020-11-16 | |
| 2020-06-30 | $397,096 | 1,400 | Call | Sole | 2020-08-14 | |
| 2020-06-30 | $567,280 | 2,000 | Put | Sole | 2020-08-14 | |
| 2020-03-31 | $413,505 | 1,500 | Call | Sole | 2020-05-15 | |
| No filing history on record for this holder in this stock. | ||||||