Position in QSI
as of Mar 31, 2026
· filed May 13, 2026
Position Value
$241
+$178 QoQ
Shares Held
312
+437.9% QoQ
Ownership
0.000%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Jun 2024
3 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in QSI Over Time
Shares Held
Position Value (USD)
Derivatives in QSI
reported options exposure · as of Mar 31, 2026CallValue
$18,266
CallShares
23,600
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 Devices
Healthcare · as of Mar 31, 2026Walleye Capital LLC holds $140,635,331 across 27 Medical Devices names. QSI ranks #27 (0.0% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | BSX |
Boston Scientific Corp
|
835,952 | $52,455,988 | |
| 2 | ABT |
Abbott Laboratories
|
406,461 | $41,731,350 | |
| 3 | INSP |
Inspire Medical Systems, Inc.
|
358,489 | $18,490,862 | |
| 4 | LIVN |
LivaNova PLC
|
213,595 | $13,576,098 | |
| 5 | HAE |
Haemonetics Corp
|
66,359 | $3,739,993 | |
| 6 | IART |
Integra Lifesciences Holdings Corp
|
218,595 | $2,059,164 | |
| 7 | RXST |
RxSight, Inc.
|
314,616 | $1,938,034 | |
| 8 | ATEC |
Alphatec Holdings, Inc.
|
134,800 | $1,466,624 |
All Filings in QSI
Export CSV
5 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $18,266 | 23,600 | Call | Sole | 2026-05-13 | |
| 2026-03-31 | $241 | 312 | Shares | Sole | 2026-05-13 | |
| 2025-12-31 | $25,960 | 23,600 | Call | Sole | 2026-02-13 | |
| 2025-12-31 | $63 | 58 | Shares | Sole | 2026-02-13 | |
| 2024-06-30 | $12,282 | 11,698 | Shares | Sole | 2024-08-14 | |
| No filing history on record for this holder in this stock. | ||||||