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Notice of Proposed Sale · 144

Extreme Networks, Inc.

EXTRNASDAQEQUITYCurrent

Notice of Proposed Sale

Filed Oct 1, 2026Accepted Oct 1, 2026, 4:37 PM EDTFiling CIK 1179945Accession 0001950047-26-009979
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Structured filing — 144

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Notice of proposed sale. The proposed amounts below do not establish that a sale occurred.

Proposed-sale notice

Issuer
Extreme Networks, Inc.
Issuer CIK
0001078271
SEC file number
001-40423
Phone
4085792800
Person for whose account securities are to be sold
EDWARD MEYERCORD
Relationships to issuer
Director · Officer
Street
2121 RDU Center Drive, Suite 300
City
Morrisville
State / country code
NC
Postal code
27560

Securities proposed for sale

Securities proposed for sale · 1 reported row
SecurityProposed unitsAggregate market valueUnits outstandingApproximate sale dateExchangeBroker / market maker
Common100,0002,145,000.00130,490,65310/01/2026NASDAQMorgan Stanley Smith Barney LLC Executive Financial Services

Broker / market maker — proposed row 1, entry 1

Name
Morgan Stanley Smith Barney LLC Executive Financial Services
Street
1 New York Plaza
Street (continued)
8th Floor
City
New York
State / country code
NY
Postal code
10004

Acquisition of securities to be sold

Acquisition of securities to be sold · 1 reported row
SecurityAcquiredNature of acquisitionAcquired fromAmount acquiredGift transactionPayment dateNature of payment
Common05/24/2019Restricted Stock UnitsIssuer100,000N05/24/2019N/A

Sales reported in the preceding three months

Sales reported in the preceding three months · 2 reported rows
SellerSecuritySale dateAmount soldGross proceeds
10b5-1 Sales for EDWARD MEYERCORDCommon09/01/202650,0001,094,920.00
10b5-1 Sales for EDWARD MEYERCORDCommon08/03/202650,0001,489,262.88

Seller — prior-sale row 1, entry 1

Name
10b5-1 Sales for EDWARD MEYERCORD
Street
2121 RDU Center Drive, Suite 300
City
Morrisville
State / country code
NC
Postal code
27560

Seller — prior-sale row 2, entry 1

Name
10b5-1 Sales for EDWARD MEYERCORD
Street
2121 RDU Center Drive, Suite 300
City
Morrisville
State / country code
NC
Postal code
27560

Prior-sale reporting

Nothing to report for the preceding three months
N

Remarks

The securities to be sold were acquired upon the vesting of restricted stock units during the period of 5/24/2019 through 11/15/2024.

Notice signature

Notice date
10/01/2026
Signed
/s/ Edward Meyercord
Plan adoption dates
08/28/2025

Company context

Extreme Networks, Inc. (EXTR) is a leader in AI-powered cloud networking, focused on delivering simple and secure solutions that help businesses address challenges and enable connections among devices, applications, and users. We push the boundaries of technology, leveraging the powers of artificial intelligence, analytics, and automation. Tens of thousands of customers globally trust our AI-driven cloud networking solutions and industry-leading support to enable businesses to drive value, foster innovation, and overcome extreme challenges. For more information, visit Extreme’s website at https://www.extremenetworks.com/ or LinkedIn, YouTube, X (Formerly Twitter), Facebook or Instagram

Current securities

Recent company filings

  1. ARS filingSep 18, 2026
  2. DEFA14A filingSep 18, 2026
  3. DEF 14A filingSep 18, 2026
  4. Changes in Registrant's Certifying AccountantAug 26, 2026
  5. 144 filingAug 21, 2026

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