Extreme Networks, Inc. (EXTR)Hillsdale Investment Management Inc. added to its stake +30K shares

339K

Shares reported · +30K vs prior quarter

0.25%

Disclosed portfolio weight

$11M

Reported value

Holdings as of

Jun 30, 2026

Filed

Aug 12, 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. Jul 29, 2026Company filing · Form 8-K · Material agreement, Agreement endedSigned an important agreement, and ended an important agreement (and 1 more item)
2. Aug 5, 2026Company filing · Form 8-K · ResultsReported its results

What came next

1. Aug 21, 2026Company filing · Form 8-K · Auditor changeChanged its auditor“Changes in Registrant’s Certifying Accountant On, and effective as of, August 21, 2026, the Audit Committee (the “Audit Committee”) of the Board of Directors of Extreme Networks, Inc. (the “Company”) approved the dismissal of Grant Thornton LLP (“GT”) as the Company’s independent registered public accounting firm.”
2. Oct 1, 2026InsiderCEO sold ~$1.09M of EXTR shares in the open market

How to read SEC Form 13F-HR

Form 13F is the quarterly report in which investment managers that oversee $100 million or more list the US-listed stocks and some other securities they held on the last day of the quarter.

Full guide: What is an SEC Form 13F?

What else is on file for Extreme Networks, Inc.

For Extreme Networks, Inc., OQRO holds 1 insider filing (SEC Form 4 or Form 144) and 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 EXTR page.

How this filing works

• SEC Form 13F

Other disclosures at Extreme Networks, Inc.

• SEC Form 4Oct 2, 2026
• SEC Form 13F-HRAug 14, 2026
• SEC Form 13F-HRAug 14, 2026
• SEC Form 13F-HRMay 15, 2026
• SEC Form 4Sep 2, 2025
• SEC Form 4Aug 22, 2025

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