Position in QSI
as of Mar 31, 2026
· filed May 14, 2026
Position Value
$70,070
-$18,487 QoQ
Shares Held
90,531
+12.5% QoQ
Ownership
0.042%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Jun 2021
12 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in QSI Over Time
Shares Held
Position Value (USD)
Position in Medical Devices
Healthcare · as of Mar 31, 2026SIMPLEX TRADING, LLC holds $10,644,342 across 49 Medical Devices names. QSI ranks #17 (0.7% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | PEN |
Penumbra Inc
|
17,719 | $5,818,388 | |
| 2 | ZBH |
Zimmer Biomet Holdings, Inc.
|
6,887 | $622,722 | |
| 3 | ENOV |
Enovis CORP
|
27,193 | $618,640 | |
| 4 | UFPT |
Ufp Technologies Inc
|
2,376 | $459,993 | |
| 5 | PRCT |
PROCEPT BioRobotics Corp
|
16,725 | $418,292 | |
| 6 | MDT |
Medtronic plc
|
4,575 | $396,423 | |
| 7 | DXCM |
Dexcom Inc
|
5,052 | $317,265 | |
| 8 | BRKR |
Bruker Corp
|
6,729 | $243,051 |
All Filings in QSI
Export CSV
12 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $70,070 | 90,531 | Shares | Sole | 2026-05-14 | |
| 2025-12-31 | $88,557 | 80,507 | Shares | Sole | 2026-02-11 | |
| 2025-09-30 | $217,257 | 154,083 | Shares | Sole | 2025-11-12 | |
| 2025-06-30 | $206,846 | 105,534 | Shares | Sole | 2025-08-05 | |
| 2025-03-31 | $51,490 | 42,909 | Shares | Sole | 2025-05-12 | |
| 2024-12-31 | $828,276 | 306,769 | Shares | Sole | 2025-02-11 | |
| 2024-09-30 | $23,372 | 26,499 | Shares | Sole | 2024-11-08 | |
| 2023-06-30 | $16,686 | 9,322 | Shares | Sole | 2023-08-04 | |
| 2023-03-31 | $9,291 | 5,279 | Shares | Sole | 2023-04-27 | |
| 2022-12-31 | $34,490 | 18,847 | Shares | Sole | 2023-02-02 | |
| 2021-09-30 | $215,839 | 25,880 | Shares | Sole | 2021-10-28 | |
| 2021-06-30 | $334,575 | 27,290 | Shares | Sole | 2021-08-12 | |
| No filing history on record for this holder in this stock. | ||||||