ESCO Technologies Inc.
US ˙ NYSE ˙ US2963151046

SecurityESE / ESCO Technologies Inc.
InstitutionSei Investments Co
Latest Disclosed Ownership56,522 shares
Latest Disclosed Value $ 11,043,803
Sei Investments Co reports 14.37% increase in ownership of ESE / ESCO Technologies Inc.

On February 13, 2026 - Sei Investments Co filed a 13F-HR form disclosing ownership of 56,522 shares of ESCO Technologies Inc. (US:ESE) valued at $11,043,834 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 13, 2025 disclosing 49,422 shares of ESCO Technologies Inc.. This represents a change in shares of 14.37% during the quarter. The current value of the position is $16,698,294 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-02-13 2025-12-31 13F ESCO TECHNOLOGIES COM 296315104 56,522 7,100 14.37 11,044 5.85
2025-11-13 2025-09-30 13F ESCO TECHNOLOGIES COM 296315104 49,422 5,496 12.51 10,433 23.79 0.0112
2025-08-14 2025-06-30 13F ESCO TECHNOLOGIES COM 296315104 43,926 11,315 34.70 8,428 62.42 0.0098
2025-05-14 2025-03-31 13F/A-1 ESCO TECHNOLOGIES COM 296315104 32,611 7,363 29.16 5,189 54.30 0.0067
2025-05-13 2025-03-31 13F ESCO TECHNOLOGIES COM 296315104 29,048 3,800 4,202 0.0046
2025-02-11 2024-12-31 13F ESCO TECHNOLOGIES COM 296315104 25,248 210 0.84 3,363 4.15 0.0043
2024-11-12 2024-09-30 13F ESCO TECHNOLOGIES COM 296315104 25,038 3,996 18.99 3,229 46.11 0.0042
2024-08-13 2024-06-30 13F ESCO TECHNOLOGIES COM 296315104 21,042 -6,784 -24.38 2,211 -25.79 0.0031
2024-05-07 2024-03-31 13F ESCO TECHNOLOGIES COM 296315104 27,826 -5,145 -15.60 2,979 -22.81 0.0044
2024-02-14 2023-12-31 13F ESCO TECHNOLOGIES COM 296315104 32,971 -931 -2.75 3,859 8.98 0.0062
2023-11-14 2023-09-30 13F ESCO TECHNOLOGIES COM 296315104 33,902 7,570 28.75 3,541 29.77 0.0064
2023-08-11 2023-06-30 13F ESCO TECHNOLOGIES COM 296315104 26,332 7,516 39.94 2,729 51.89 0.0048
2023-05-12 2023-03-31 13F ESCO TECHNOLOGIES COM 296315104 18,816 7,147 61.25 1,796 75.91 0.0033
2023-02-10 2022-12-31 13F ESCO TECHNOLOGIES COM 296315104 11,669 -5,914 -33.63 1,022 -20.91 0.0023
2022-11-14 2022-09-30 13F ESCO TECHNOLOGIES COM 296315104 17,583 1,206 7.36 1,291 12.75 0.0029
2022-08-15 2022-06-30 13F ESCO TECHNOLOGIES COM 296315104 16,377 5,254 47.24 1,145 42.77 0.0025
2022-05-13 2022-03-31 13F ESCO TECHNOLOGIES COM 296315104 11,123 941 9.24 802 -12.06 0.0016
2022-02-14 2021-12-31 13F ESCO TECHNOLOGIES COM 296315104 10,182 5 0.05 912 16.48 0.0017
2021-11-12 2021-09-30 13F ESCO TECHNOLOGIES COM 296315104 10,177 827 8.84 783 -11.02 0.0016
2021-08-06 2021-06-30 13F ESCO TECHNOLOGIES COM 296315104 9,350 -7,222 -43.58 880 -49.40 0.0020
2021-05-12 2021-03-31 13F ESCO TECHNOLOGIES COM 296315104 16,572 637 4.00 1,739 6.62 0.0044
2021-02-08 2020-12-31 13F ESCO TECHNOLOGIES COM 296315104 15,935 1,468 10.15 1,631 37.41 0.0042
2020-12-04 2020-09-30 13F/A-1 ESCO TECHNOLOGIES COM 296315104 14,467 -177 -1.21 1,187 -5.04 0.0034
2020-11-06 2020-09-30 13F ESCO TECHNOLOGIES COM 296315104 14,538 -106 1,193 2,872.4787
2020-08-17 2020-06-30 13F/A-1 ESCO TECHNOLOGIES COM 296315104 14,644 335 2.34 1,250 10.23 0.0039
2020-08-11 2020-06-30 13F ESCO TECHNOLOGIES COM 296315104 12,849 -1,460 1,135 3,078.7479
2020-05-14 2020-03-31 13F ESCO TECHNOLOGIES COM 296315104 14,309 9,603 204.06 1,134 160.69 0.0042
2020-02-06 2019-12-31 13F ESCO TECHNOLOGIES COM 296315104 4,706 1,201 34.27 435 55.91 0.0013
2019-11-12 2019-09-30 13F ESCO TECHNOLOGIES COM 296315104 3,505 0 0.00 279 -3.79 0.0007
2019-08-14 2019-06-30 13F ESCO TECHNOLOGIES COM 296315104 3,505 0 0.00 290 23.40 0.0009
2019-05-15 2019-03-31 13F ESCO TECHNOLOGIES COM 296315104 3,505 1,069 43.88 235 41.57 0.0008
2019-02-13 2018-12-31 13F ESCO TECHNOLOGIES COM 296315104 2,436 0 0.00 166 0.00 0.0006
2018-11-08 2018-09-30 13F ESCO TECHNOLOGIES COM 296315104 2,436 -17 -0.69 166 16.90 0.0006
2018-08-03 2018-06-30 13F ESCO TECHNOLOGIES COM 296315104 2,453 1,056 75.59 142 73.17 0.0005
2018-05-11 2018-03-31 13F ESCO TECHNOLOGIES COM 296315104 1,397 -39 -2.72 82 -5.75 0.0003
2018-02-08 2017-12-31 13F ESCO TECHNOLOGIES COM 296315104 1,436 1,235 614.43 87 625.00 0.0003
2017-11-06 2017-09-30 13F ESCO TECHNOLOGIES COM 296315104 201 76 60.80 12 71.43 0.0000
2017-07-31 2017-06-30 13F ESCO TECHNOLOGIES COM 296315104 125 125 7 0.0000
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.