ESCO Technologies Inc.
US ˙ NYSE ˙ US2963151046

SecurityESE / ESCO Technologies Inc.
InstitutionParallel Advisors, LLC
Latest Disclosed Ownership240 shares
Latest Disclosed Value $ 46,930
Parallel Advisors, LLC ownership in ESE / ESCO Technologies Inc.

On February 11, 2026 - Parallel Advisors, LLC filed a 13F-HR form disclosing ownership of 240 shares of ESCO Technologies Inc. (US:ESE) valued at $46,894 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 13, 2025 disclosing 242 shares of ESCO Technologies Inc.. This represents a change in shares of -0.83% during the quarter. The current value of the position is $70,903 USD.

Parallel Advisors, LLC has a history of taking positions in derivatives of the underlying security (ESE) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

ESE / ESCO Technologies Inc. Historical Put/Call Ratio
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)
2026-02-11 2025-12-31 13F ESCO TECHNOLOGIES Stock 296315104 240 -2 -0.83 47 -9.80 0.0009
2025-11-13 2025-09-30 13F ESCO TECHNOLOGIES Stock 296315104 242 7 2.98 51 13.33 0.0009
2025-07-08 2025-06-30 13F ESCO TECHNOLOGIES Stock 296315104 235 -9 -3.69 45 18.42 0.0009
2025-04-08 2025-03-31 13F ESCO TECHNOLOGIES Stock 296315104 244 29 13.49 39 35.71 0.0009
2025-02-10 2024-12-31 13F ESCO TECHNOLOGIES Stock 296315104 215 16 8.04 29 12.00 0.0006
2024-11-13 2024-09-30 13F ESCO TECHNOLOGIES Stock 296315104 199 2 1.02 26 25.00 0.0006
2024-08-08 2024-06-30 13F ESCO TECHNOLOGIES Stock 296315104 197 -5 -2.48 21 -4.76 0.0005
2024-05-06 2024-03-31 13F ESCO TECHNOLOGIES Stock 296315104 202 5 2.54 22 -8.70 0.0006
2024-02-12 2023-12-31 13F ESCO TECHNOLOGIES Stock 296315104 197 12 6.49 23 21.05 0.0007
2024-05-20 2023-09-30 13F/A-1 ESCO TECHNOLOGIES Stock 296315104 185 -12 -6.09 19 -5.00 0.0006
2023-11-14 2023-09-30 13F ESCO TECHNOLOGIES Stock 296315104 185 -12 19 0.0006
2024-05-20 2023-06-30 13F/A-1 ESCO TECHNOLOGIES Stock 296315104 197 12 6.49 20 17.65 0.0007
2023-08-04 2023-06-30 13F ESCO TECHNOLOGIES Stock 296315104 197 12 20 0.0007
2024-05-20 2023-03-31 13F/A-1 ESCO TECHNOLOGIES Stock 296315104 185 0 0.00 18 6.25 0.0006
2023-04-25 2023-03-31 13F ESCO TECHNOLOGIES Stock 296315104 185 0 18 0.0006
2023-02-06 2022-12-31 13F ESCO TECHNOLOGIES Stock 296315104 185 -9 -4.64 16 14.29 0.0007
2022-11-10 2022-09-30 13F ESCO TECHNOLOGIES Stock 296315104 194 -27 -12.22 14 -6.67 0.0006
2022-08-01 2022-06-30 13F ESCO TECHNOLOGIES Stock 296315104 221 59 36.42 15 25.00 0.0007
2022-04-28 2022-03-31 13F ESCO TECHNOLOGIES Stock 296315104 162 8 5.19 12 -14.29 0.0005
2022-01-20 2021-12-31 13F ESCO TECHNOLOGIES Stock 296315104 154 -25 -13.97 14 0.00 0.0005
2021-11-02 2021-09-30 13F/A-1 ESCO TECHNOLOGIES Stock 296315104 179 -89 -33.21 14 -44.00 0.0006
2021-08-06 2021-06-30 13F ESCO TECHNOLOGIES Stock 296315104 268 103 62.42 25 38.89 0.0011
2021-04-23 2021-03-31 13F ESCO TECHNOLOGIES Stock 296315104 165 13 8.55 18 12.50 0.0008
2021-02-02 2020-12-31 13F ESCO TECHNOLOGIES Stock 296315104 152 10 7.04 16 45.45 0.0009
2020-10-27 2020-09-30 13F ESCO TECHNOLOGIES Stock 296315104 142 0 0.00 11 -8.33 0.0007
2020-07-16 2020-06-30 13F ESCO TECHNOLOGIES Stock 296315104 142 0 0.00 12 20.00 0.0008
2020-04-27 2020-03-31 13F ESCO TECHNOLOGIES Stock 296315104 142 -302 -68.02 10 -75.61 0.0008
2020-01-30 2019-12-31 13F ESCO TECHNOLOGIES Stock 296315104 444 0 0.00 41 17.14 0.0031
2019-11-01 2019-09-30 13F ESCO TECHNOLOGIES Stock 296315104 444 0 0.00 35 -5.41 0.0030
2019-08-05 2019-06-30 13F ESCO TECHNOLOGIES Stock 296315104 444 0 0.00 37 23.33 0.0036
2019-05-01 2019-03-31 13F ESCO TECHNOLOGIES Stock 296315104 444 302 212.68 30 233.33 0.0034
2019-02-05 2018-12-31 13F ESCO TECHNOLOGIES Stock 296315104 142 0 0.00 9 -10.00 0.0013
2018-11-01 2018-09-30 13F ESCO TECHNOLOGIES Stock 296315104 142 0 0.00 10 25.00 0.0012
2018-07-30 2018-06-30 13F ESCO TECHNOLOGIES Stock 296315104 142 0 0.00 8 0.00 0.0011
2018-05-08 2018-03-31 13F ESCO TECHNOLOGIES Stock 296315104 142 -26 -15.48 8 -20.00 0.0012
2018-02-13 2017-12-31 13F ESCO TECHNOLOGIES INC COM Stock 296315104 168 0 0.00 10 0.00 0.0016
2017-11-15 2017-09-30 13F/A-1 ESCO TECHNOLOGIES INC COM Stock 296315104 168 -19 -10.16 10 -16.67 0.0017
2017-08-07 2017-06-30 13F ESCO TECHNOLOGIES INC COM Stock 296315104 187 35 23.03 12 33.33 0.0023
2017-05-12 2017-03-31 13F/A-1 ESCO TECHNOLOGIES INC COM Stock 296315104 152 152 9 0.0018
2017-05-12 2017-03-31 13F ESCO TECHNOLOGIES INC COM Stock 296315104 152 9
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2022-01-19 2021-12-31 13F ESCO TECHNOLOGIES Stock Call 0 -100.00 0 -100.00 n/a n/a n/a
2021-10-22 2021-09-30 13F ESCO TECHNOLOGIES Stock Call 268 25 n/a n/a n/a
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.