Amplitech Group (AMPG)Citadel Securities GP LLC now owns 5.7% of AMPG as a passive investor 5.7%

5.7%

Stake

1.44M

Shares owned

Stake as of

Jun 30, 2026

Filed

Oct 6, 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. May 13, 2026Company filing · Form 8-K · ResultsReported its results

What came next

1. Jul 7, 2026Company filing · Form 8-K · Agreement ended, Other newsEnded an important agreement, and reported other company news
2. Aug 6, 2026Company filing · Form 8-K · Material agreementSigned an important agreement
3. Aug 13, 2026Company filing · Form 8-K · ResultsReported its results
4. Oct 6, 20265% stakeCitadel Securities GP LLC reported a passive stake (13G) of 5.7%
5. Oct 7, 20265% stakeFunicular Funds, LP reported a passive stake (13G) of 5.4%

How to read SEC Schedule 13G

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 Amplitech Group

For Amplitech Group, OQRO holds 3 fund holdings reports (13F) 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 AMPG page.

How this filing works

• Schedule 13D vs 13G

Other disclosures at Amplitech Group

• SEC Schedule 13GOct 7, 2026
• SEC Form 13F-HRAug 14, 2026
• SEC Form 13F-HRMay 15, 2026
• SEC Form 4Jun 20, 2025
• SEC Form 4Apr 9, 2025
• SEC Form 4Oct 7, 2024

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