Position in ESE
as of Mar 31, 2026
· filed May 14, 2026
Position Value
$1,003,646
+$976,097 QoQ
Shares Held
3,567
+2429.8% QoQ
Ownership
0.014%
of shares outstanding
% of Portfolio
0.04%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
7 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in ESE Over Time
Shares Held
Position Value (USD)
Position in Scientific & Technical Instruments
Technology · as of Mar 31, 2026SIMPLEX TRADING, LLC holds $4,571,628 across 13 Scientific & Technical Instruments names. ESE ranks #2 (22.0% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | COHR |
Coherent Corp.
|
10,444 | $2,487,865 | |
| 2 | ESE |
Esco Technologies Inc
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|
3,567 | $1,003,646 | |
| 3 | ITRI |
Itron, Inc.
|
5,259 | $471,364 | |
| 4 | KEYS |
Keysight Technologies, Inc.
|
775 | $218,836 | |
| 5 | ARBE |
Arbe Robotics Ltd.
|
185,701 | $113,277 | |
| 6 | CGNX |
Cognex Corp
|
2,296 | $112,481 | |
| 7 | VPG |
Vishay Precision Group, Inc.
|
1,113 | $48,326 | |
| 8 | BMI |
Badger Meter Inc
|
288 | $43,876 |
All Filings in ESE
Export CSV
7 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $1,003,646 | 3,567 | Shares | Sole | 2026-05-14 | |
| 2025-12-31 | $27,549 | 141 | Shares | Sole | 2026-02-11 | |
| 2025-09-30 | $53 | 255 | Shares | Sole | 2025-11-12 | |
| 2022-06-30 | $10,050 | 147 | Shares | Sole | 2022-08-03 | |
| 2022-03-31 | $839 | 12 | Shares | Sole | 2022-05-02 | |
| 2021-03-31 | $78,836 | 724 | Shares | Sole | 2021-04-26 | |
| 2020-03-31 | $95,646 | 1,260 | Shares | Sole | 2020-04-29 | |
| No filing history on record for this holder in this stock. | ||||||