ESCO Technologies Inc. (ESE)TBG AG disclosed a 16.4% stake in ESE and may seek to influence the company 16.4%

16.4%

Stake

5.1M

Shares owned

Stake as of

Oct 1, 2026

Filed

Oct 8, 2026

The story around this disclosure

Every dated public record OQRO holds about the company from 60 days before to 120 days after, oldest first. It shows what was going on; none of it is a stated reason for the trade.

1. Aug 6, 2026Company filing · Form 8-K · Results, Reg FDReported its results, and shared information with investors
2. Aug 19, 2026CongressDisclosed purchase of ESE — reported range $1,001 - $15,000
3. Aug 20, 2026CongressDisclosed purchase of ESE — reported range $1,001 - $15,000
4. Aug 24, 2026CongressDisclosed purchase of ESE — reported range $1,001 - $15,000
5. Aug 25, 2026CongressDisclosed sale of ESE — reported range $15,001 - $50,000
6. Sep 25, 2026Federal contract · $519K obligatedDepartment of Energy awarded ESCO TECHNOLOGIES INC: $519K obligated to date
7. Oct 1, 2026Company filing · Form 8-K · Material agreement, Agreement endedCompleted buying or selling a business or assets, and changed a top executive or board member (and 3 more items)“Effective October 1, 2026, the Registrant's Board of Directors, by unanimous written consent pursuant to Section 3.1 of its Bylaws, increased the authorized size of its Board of Directors from eight to nine members and elected Mr. Jeremy P. Abson as a director to fill the vacancy thereby created.”

What came next

1. Oct 8, 20265% stakeTBG AG filed an activist stake (13D) of 16.4%

How to read SEC Schedule 13D

A Schedule 13D and a Schedule 13G both disclose beneficial ownership of more than 5% of a US company's voting shares. A 13D is the long form, filed by holders who may seek to influence or control the company, and it must state what they intend to do. A 13G is the short form, open only to passive holders and to certain institutions holding in the ordinary course of business, and it asks no question about intent.

Full guide: Schedule 13D vs Schedule 13G: what is the difference?

What else is on file for ESCO Technologies Inc.

For ESCO Technologies Inc., OQRO holds 4 Congress trade reports, 10 fund holdings reports (13F) and 1 federal contract award dated in the last 90 days.

These are records OQRO holds, counted by their date, not a measure of how much trading took place. Routine paperwork such as option exercises and tax withholding is left out. Everything for the company is on its ESE page.

How this filing works

• Schedule 13D vs 13G

Other disclosures at ESCO Technologies Inc.

• USAspending.gov award recordSep 25, 2026
• House Clerk periodic transaction reportSep 9, 2026
• House Clerk periodic transaction reportSep 9, 2026
• House Clerk periodic transaction reportSep 9, 2026
• House Clerk periodic transaction reportSep 9, 2026
• SEC Form 13F-HRAug 14, 2026

Everything OQRO holds on this company is on its ESE page.