Position in ESE
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$26,200,048
+$10,312,966 QoQ
Shares Held
93,116
+23.7% QoQ
Ownership
0.359%
of shares outstanding
% of Portfolio
0.02%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
19 quarters on record
Voting authority
Sole 100.ToString("F0")%
Shared 0.ToString("F0")%
None 0.ToString("F0")%
Common Shares in ESE Over Time
Shares Held
Position Value (USD)
Derivatives in ESE
reported options exposure · as of Mar 31, 2026CallValue
$478,329
CallShares
1,700
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 Scientific & Technical Instruments
Technology · as of Mar 31, 2026CITADEL ADVISORS LLC holds $871,109,883 across 24 Scientific & Technical Instruments names. ESE ranks #6 (3.0% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | COHR |
Coherent Corp.
|
1,079,094 | $257,050,981 | |
| 2 | KEYS |
Keysight Technologies, Inc.
|
791,836 | $223,590,730 | |
| 3 | MKSI |
Mks Inc
|
947,032 | $217,637,423 | |
| 4 | GRMN |
Garmin Ltd
|
154,306 | $35,800,534 | |
| 5 | ITRI |
Itron, Inc.
|
321,017 | $28,772,752 | |
| 6 | ESE |
Esco Technologies Inc
This page
|
93,116 | $26,200,048 | |
| 7 | TRMB |
Trimble Inc.
|
338,112 | $22,055,045 | |
| 8 | FTV |
Fortive Corp
|
311,866 | $17,239,952 |
All Filings in ESE
Export CSV
26 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $26,200,048 | 93,116 | Shares | Defined | 2026-05-15 | |
| 2026-03-31 | $478,329 | 1,700 | Call | Defined | 2026-05-15 | |
| 2025-09-30 | $15,887,082 | 75,255 | Shares | Defined | 2025-11-14 | |
| 2025-06-30 | $652,358 | 3,400 | Call | Defined | 2025-08-14 | |
| 2024-12-31 | $273,079 | 2,050 | Shares | Defined | 2025-02-14 | |
| 2024-12-31 | $39,963 | 300 | Put | Defined | 2025-02-14 | |
| 2024-12-31 | $26,642 | 200 | Call | Defined | 2025-02-14 | |
| 2024-09-30 | $12,898 | 100 | Put | Defined | 2024-11-14 | |
| 2024-09-30 | $25,796 | 200 | Call | Defined | 2024-11-14 | |
| 2024-09-30 | $3,249,135 | 25,191 | Shares | Defined | 2024-11-14 | |
| 2024-06-30 | $10,504 | 100 | Put | Defined | 2024-08-14 | |
| 2024-06-30 | $5,669,007 | 53,970 | Shares | Defined | 2024-08-14 | |
| 2024-03-31 | $3,719,558 | 34,746 | Shares | Defined | 2024-05-15 | |
| 2024-03-31 | $53,525 | 500 | Put | Defined | 2024-05-15 | |
| 2023-12-31 | $1,520,921 | 12,996 | Shares | Defined | 2024-02-14 | |
| 2023-09-30 | $1,727,855 | 16,544 | Shares | Defined | 2023-11-14 | |
| 2023-06-30 | $3,284,448 | 31,694 | Shares | Defined | 2023-08-14 | |
| 2022-12-31 | $966,353 | 11,039 | Shares | Defined | 2023-02-14 | |
| 2022-09-30 | $1,355,775 | 18,461 | Shares | Defined | 2022-11-14 | |
| 2022-06-30 | $1,718,001 | 25,128 | Shares | Defined | 2022-08-15 | |
| 2022-03-31 | $940,842 | 13,456 | Shares | Defined | 2022-05-16 | |
| 2021-12-31 | $802,710 | 8,920 | Shares | Defined | 2022-02-14 | |
| 2021-09-30 | $3,476,396 | 45,148 | Shares | Defined | 2021-11-15 | |
| 2021-06-30 | $1,548,803 | 16,510 | Shares | Defined | 2021-08-16 | |
| 2020-12-31 | $291,699 | 2,826 | Shares | Defined | 2021-02-16 | |
| 2020-03-31 | $332,561 | 4,381 | Shares | Defined | 2020-05-15 | |
| No filing history on record for this holder in this stock. | ||||||