Position in ESE
as of Jun 30, 2026
· filed Aug 12, 2026
Position Value
$3,830,837
+$2,827,191 QoQ
Shares Held
10,944
+206.8% QoQ
Ownership
0.042%
of shares outstanding
% of Portfolio
0.12%
of 13F equity value
Holder Rank
#133
of 449 holders
Holding Since
Mar 2020
8 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 Jun 30, 2026SIMPLEX TRADING, LLC holds $23,150,058 across 13 Scientific & Technical Instruments names. ESE ranks #2 (16.5% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | COHR |
Coherent Corp.
|
26,782 | $10,564,695 | |
| 2 | ESE |
Esco Technologies Inc
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|
10,944 | $3,830,837 | |
| 3 | MKSI |
Mks Inc
|
5,931 | $2,638,108 | |
| 4 | ITRN |
Ituran Location & Control Ltd.
|
38,435 | $2,344,919 | |
| 5 | VPG |
Vishay Precision Group, Inc.
|
7,850 | $1,176,793 | |
| 6 | NOVT |
Novanta Inc
|
5,780 | $937,747 | |
| 7 | GRMN |
Garmin Ltd
|
2,865 | $680,552 | |
| 8 | CGNX |
Cognex Corp
|
6,198 | $448,859 |
All Filings in ESE
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8 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $3,830,837 | 10,944 | Shares | Sole | 2026-08-12 | |
| 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 | $53,833 | 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. | ||||||