As of November 6, 2026, 5 holders' latest Schedule 13D or 13G filings report owning 5% or more of ESCO Technologies Inc. The largest reported stake is Tbg Ag's, at 16.4%. 6 filings are on record since October 17, 2025 (Schedule 13D, October 8, 2026).
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Key facts
- · Reporting person: Tbg Ag · Sole voting: 5,100,000 · Shared voting: 0 · Sole dispositive: 5,100,000 · Shared dispositive: 0 · SCHEDULE 13D, 2026-10-08
- · Reporting person: Invesco Ltd. · Sole voting: 1,471,131 · Shared voting: 0 · Sole dispositive: 1,505,723 · Shared dispositive: 0 · SCHEDULE 13G, 2026-08-13
- · Holder: Vanguard Capital Management · Percent: 5.23% · SCHEDULE 13G
- · Holder: Vanguard Portfolio Management · Percent: 6.03% · SCHEDULE 13G
- · Holder: The Vanguard Group · Percent: 0% · SCHEDULE 13G/A
ESCO Technologies Inc. has 6 Schedule 13D or 13G filings on record since 2025-10-17. 5 holders' latest filing reports 5% or more of common stock, par value $0.01 per share. Each figure below is the holder's own, as filed, with the filing linked.
Holders
| Holder | Percent | Shares | Latest | Event date |
|---|---|---|---|---|
| Tbg Ag | 16.4% | 5,100,000 | SCHEDULE 13D, 2026-10-08 | 2026-10-01 |
| BlackRock, Inc. | 14.2% | 3,679,114 | SCHEDULE 13G/A, 2025-10-17 | 2025-09-30 |
| Vanguard Portfolio Management | 6.03% | 1,563,273 | SCHEDULE 13G, 2026-04-29 | 2026-03-31 |
| Invesco Ltd. | 5.8% | 1,505,723 | SCHEDULE 13G, 2026-08-13 | 2026-06-30 |
| Vanguard Capital Management | 5.23% | 1,356,855 | SCHEDULE 13G, 2026-04-29 | 2026-03-31 |
| The Vanguard Group | 0% | 0 | SCHEDULE 13G/A, 2026-03-26 | 2026-03-13 |
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More on ESCO Technologies Inc. and the records around it.
ESCO Technologies Inc. elsewhere on the record
- Leadership changes Oct 2026
- Who owns it
Companies that share a holder
- Invesco Ltd. also filed stake reports on 83 other companies: Alignment Healthcare Inc (Aug 2026), ArcBest Corp (Aug 2026), ARKO Petroleum Corp (Aug 2026)
- Vanguard Portfolio Management also filed stake reports on 941 other companies: Newmark Group Inc (Nov 2026), A10 Networks Inc (Oct 2026), ADT Inc (Oct 2026)
- Vanguard Capital Management also filed stake reports on 1495 other companies: A10 Networks Inc (Oct 2026), Altisource Portfolio Solutions SA (Oct 2026), Alto Neuroscience Inc (Oct 2026)
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Voting and dispositive power, as filed
| Reporting person | Sole voting | Shared voting | Sole dispositive | Shared dispositive | Filing |
|---|---|---|---|---|---|
| Tbg Ag | 5,100,000 | 0 | 5,100,000 | 0 | SCHEDULE 13D, 2026-10-08 |
| Invesco Ltd. | 1,471,131 | 0 | 1,505,723 | 0 | SCHEDULE 13G, 2026-08-13 |
The latest filing identifies ESCO Technologies Inc. by CUSIP 296315104 and gives its principal executive office as 645 Maryville Centre Dr., Suite 300, St. Louis, MO 63141-5855 (SCHEDULE 13D, 2026-10-08).
Purpose of Transaction (Item 4)
Tbg Ag
On the Completion Date, in connection with the consummation of the Transaction pursuant to the Purchase Agreement, the Reporting Person entered into that certain Shareholder Agreement, dated as of October 1, 2026, by and between the Reporting Person and the Issuer (the "Shareholder Agreement"), which provides for, among other things, certain transfer restrictions, standstill obligations, voting commitments, board designation rights, consent rights, preemptive rights, registration rights and information rights of the Reporting Person with respect to the Issuer and the Common Stock. The terms and provisions of the Shareholder Agreement are more fully described in the October 1 Form 8-K, and are further described in Item 6 of this Schedule 13D, which is incorporated into this Item 4 by reference. Additionally, pursuant to the Shareholder Agreement, the board of directors of the Issuer (the "Board") appointed Jeremy Abson as a member of the Board in the class of directors (Class III) with a term ending in 2029, effective as of the Completion Date. Mr. Abson is the Chief Executive Officer of the Reporting Person. Subject to the terms of the Shareholder Agreement and applicable law, the Reporting Person may engage in a dialogue and other communications regarding the Issuer with members of the Board and/or management of the Issuer, other stockholders of the Issuer, knowledgeable industry or market participants or other persons. Except as described in this Schedule 13D …The first part of Item 4 of the SCHEDULE 13D filed 2026-10-08; the filing has the rest
Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2025-10-17 | BlackRock, Inc. | 14.2% | SCHEDULE 13G/A |
| 2026-03-26 | The Vanguard Group | 0% | SCHEDULE 13G/A |
| 2026-04-29 | Vanguard Capital Management | 5.23% | SCHEDULE 13G |
| 2026-04-29 | Vanguard Portfolio Management | 6.03% | SCHEDULE 13G |
| 2026-08-13 | Invesco Ltd. | 5.8% | SCHEDULE 13G |
| 2026-10-08 | Tbg Ag | 16.4% | SCHEDULE 13D |
Questions about who owns ESCO Technologies Inc.
Who owns ESCO Technologies Inc.?
On this page, 5 holders' latest ownership filings report 5% or more of ESCO Technologies Inc.: Tbg Ag (16.4%, Schedule 13D, filed 2026-10-08), BlackRock, Inc. (14.2%, Schedule 13G/A, filed 2025-10-17), Vanguard Portfolio Management (6.03%, Schedule 13G, filed 2026-04-29), Invesco Ltd. (5.8%, Schedule 13G, filed 2026-08-13) and Vanguard Capital Management (5.23%, Schedule 13G, filed 2026-04-29).
Who are the largest shareholders of ESCO Technologies Inc.?
By the share each holder's latest filing reports, the largest holders of ESCO Technologies Inc. on this page are Tbg Ag (16.4%), BlackRock, Inc. (14.2%) and Vanguard Portfolio Management (6.03%).
When did Tbg Ag buy into ESCO Technologies Inc.?
The filings give report dates, not purchase dates. The earliest filing from Tbg Ag on this page is the Schedule 13D, filed 2026-10-08, reporting 16.4%.
Is this an audit or a full list?
Neither. The ownership list on this page covers only Schedule 13D and 13G filings, which holders make once they own 5% or more of a class of shares (an amendment can report a stake that has since fallen below 5%); 6 such filings are shown here. It is not an audit and not a full cap table: holders who never reached 5% are not listed, and a stake can change after its latest filing.
Also on the record for ESCO Technologies Inc.
| Date | Record | Figure | Our page | Source |
|---|---|---|---|---|
| October 2, 2026 | Leadership change: Jeremy P. Abson appointed, Director, and 1 more | — | Leadership changes | Source |
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Where this comes from
Anyone who comes to own more than 5% of a class of a listed company's voting shares has to tell the SEC. A holder who may seek to change or influence the company files Schedule 13D, and has to say in Item 4, "Purpose of Transaction", what it intends to do. A holder with no such intent, such as many index and passive funds, may file the shorter Schedule 13G. Both are amended when the stake changes, including when it falls below 5%.
Every row here is one of those filings, linked to the filing itself. Percentages and share counts are exactly as the holder filed them, for the holder the filing names; an amendment showing a lower figure is shown as filed. Item 4 text is quoted word for word. Where a 13D's Item 4 contains a sentence stating a definite intent to influence the company, that sentence is marked and quoted; the page does not describe the holder or its motives beyond the words it filed. Nothing here is investment advice.