Position in ST
as of Jun 30, 2026
· filed Aug 3, 2026
Position Value
$0
-$147,924 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
22 quarters on record
Common Shares in ST Over Time
Shares Held
Position Value (USD)
Derivatives in ST
reported options exposure · as of Jun 30, 2026CallValue
$1,809,346
CallShares
37,900
PutValue
$472,626
PutShares
9,900
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 Scientific & Technical Instruments
Technology · as of Jun 30, 2026Walleye Trading LLC holds $809,857 across 3 Scientific & Technical Instruments names.
All Filings in ST
Export CSV
48 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $1,809,346 | 37,900 | Call | Sole | 2026-08-03 | |
| 2026-06-30 | $472,626 | 9,900 | Put | Sole | 2026-08-03 | |
| 2026-03-31 | $1,433,454 | 40,700 | Call | Sole | 2026-05-11 | |
| 2026-03-31 | $426,162 | 12,100 | Put | Sole | 2026-05-11 | |
| 2026-03-31 | $147,924 | 4,200 | Shares | Sole | 2026-05-11 | |
| 2025-12-31 | $439,428 | 13,200 | Put | Sole | 2026-02-13 | |
| 2025-12-31 | $1,431,470 | 43,000 | Call | Sole | 2026-02-13 | |
| 2025-09-30 | $308,555 | 10,100 | Put | Sole | 2025-11-14 | |
| 2025-09-30 | $1,286,155 | 42,100 | Call | Sole | 2025-11-14 | |
| 2025-06-30 | $1,135,147 | 37,700 | Call | Sole | 2025-08-13 | |
| 2025-06-30 | $433,584 | 14,400 | Put | Sole | 2025-08-13 | |
| 2025-03-31 | $276,678 | 11,400 | Put | Sole | 2025-05-14 | |
| 2025-03-31 | $235,419 | 9,700 | Call | Sole | 2025-05-14 | |
| 2024-12-31 | $378,120 | 13,800 | Call | Sole | 2025-02-13 | |
| 2024-12-31 | $116,313 | 4,245 | Shares | Sole | 2025-02-13 | |
| 2024-09-30 | $222,332 | 6,200 | Put | Sole | 2024-11-14 | |
| 2024-09-30 | $68,134 | 1,900 | Call | Sole | 2024-11-14 | |
| 2024-06-30 | $1,353,518 | 36,200 | Call | Sole | 2024-08-14 | |
| 2024-06-30 | $74,219 | 1,985 | Shares | Sole | 2024-08-14 | |
| 2024-06-30 | $201,906 | 5,400 | Put | Sole | 2024-08-14 | |
| 2024-03-31 | $169,004 | 4,600 | Put | Sole | 2024-05-15 | |
| 2024-03-31 | $521,708 | 14,200 | Call | Sole | 2024-05-15 | |
| 2023-12-31 | $3,986,177 | 106,100 | Call | Sole | 2024-02-14 | |
| 2023-12-31 | $405,756 | 10,800 | Put | Sole | 2024-02-14 | |
| 2023-12-31 | $54,326 | 1,446 | Shares | Sole | 2024-02-14 | |
| 2023-09-30 | $760,182 | 20,100 | Call | Sole | 2023-11-21 | |
| 2023-09-30 | $90,768 | 2,400 | Put | Sole | 2023-11-21 | |
| 2023-06-30 | $13,497 | 300 | Call | Sole | 2023-08-14 | |
| 2023-06-30 | $233,948 | 5,200 | Put | Sole | 2023-08-14 | |
| 2023-03-31 | $355,142 | 7,100 | Put | Sole | 2023-05-15 | |
| 2022-12-31 | $650,118 | 16,100 | Call | Sole | 2023-02-14 | |
| 2022-12-31 | $88,836 | 2,200 | Put | Sole | 2023-02-14 | |
| 2022-06-30 | $4,131 | 100 | Put | Sole | 2022-08-08 | |
| 2022-06-30 | $351,135 | 8,500 | Call | Sole | 2022-08-08 | |
| 2021-09-30 | $114,747 | 2,097 | Shares | Sole | 2021-11-15 | |
| 2021-09-30 | $16,416 | 300 | Call | Sole | 2021-11-15 | |
| 2021-09-30 | $284,544 | 5,200 | Put | Sole | 2021-11-15 | |
| 2021-06-30 | $318,835 | 5,500 | Put | Sole | 2021-08-16 | |
| 2021-06-30 | $486,948 | 8,400 | Call | Sole | 2021-08-16 | |
| 2020-12-31 | $886,032 | 16,800 | Put | Sole | 2021-02-16 | |
| 2020-12-31 | $891,306 | 16,900 | Call | Sole | 2021-02-16 | |
| 2020-09-30 | $1,751,484 | 40,600 | Call | Sole | 2020-11-16 | |
| 2020-09-30 | $603,960 | 14,000 | Put | Sole | 2020-11-16 | |
| 2020-06-30 | $763,215 | 20,500 | Put | Sole | 2020-08-14 | |
| 2020-06-30 | $1,262,097 | 33,900 | Call | Sole | 2020-08-14 | |
| 2020-03-31 | $407,913 | 14,100 | Call | Sole | 2020-05-15 | |
| 2020-03-31 | $57,860 | 2,000 | Put | Sole | 2020-05-15 | |
| 2020-03-31 | $21,408 | 740 | Shares | Sole | 2020-05-15 | |
| No filing history on record for this holder in this stock. | ||||||