![John Shoemaker](data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="%231b1b1b" class="bi bi-person-fill" viewBox="0 0 16 16"><path d="M3 14s-1 0-1-1 1-4 6-4 6 3 6 4-1 1-1 1zm5-6a3 3 0 1 0 0-6 3 3 0 0 0 0 6"/></svg>)
John Shoemaker
Chairman at
EXTREME NETWORKS, INC.
Net worth: 13 M $ as of 31/08/2026
Profile
John Calvin Shoemaker is currently Chairman at Extreme Networks, Inc. since 2017, Chairman at Shoemaker, Inc. (Indiana) since 1974, Principal Director at Indiana University Foundation, Inc., and Director at Johnson Center For Entrepreneurship & Innovation.
Former positions include Chief Executive Officer at Advance Capital Management, Inc. from 2001 to 2005, Chairman at SonicWall, Inc. from 2007 to 2010, Director roles at Astute Networks, Inc., Conformative Systems, Inc., and Echo 360 Continuing Education LLC, Independent Director at Altera Corp.
from 2011 to 2015, Senior Vice President-Worldwide Marketing at Xerox Corp.
from 1969 to 1989, Executive VP & General Manager-Computer Systems at Sun Microsystems, Inc. from 1989 to 2004, and Trustee at Hanover College from 2001 to 2011.
Education includes undergraduate and doctorate degrees from Indiana University, an undergraduate degree from Hanover College, and an MBA from Kelley School of Business.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
| 12/11/2025 | 582,345 ( 0.45% ) | 13 M $ | 31/08/2026 |
John Shoemaker active positions
| Companies | Position | Start |
|---|---|---|
| EXTREME NETWORKS, INC. | Chairman | 17/02/2017 |
Indiana University Foundation, Inc.
 Indiana University Foundation, Inc. Investment Trusts/Mutual FundsMiscellaneous Provides financial support to education and charitable causes | Corporate Officer/Principal | - |
Johnson Center For Entrepreneurship & Innovation | Director/Board Member | - |
Shoemaker, Inc. (Indiana)
 Shoemaker, Inc. (Indiana) Industrial MachineryProducer Manufacturing Manufactures industrial valve products | Chairman | 01/01/1974 |
Former positions of John Shoemaker
| Companies | Position | End |
|---|---|---|
| ALTERA CORPORATION | Director/Board Member | 01/12/2015 |
Hanover College
 Hanover College Other Consumer ServicesConsumer Services Functions as a College/University | Director/Board Member | 01/01/2011 |
SonicWall, Inc.
 SonicWall, Inc. Information Technology ServicesTechnology Services Provides cybersecurity services and products | Chairman | 01/01/2010 |
Advance Capital Management, Inc.
 Advance Capital Management, Inc. Investment ManagersFinance ACM’s services are generally limited to advice and recommendations on those securities for which fees are charged, and recommended securities are generally limited to mutual funds and ETFs. In certain situations, they may provide investment advice on a range of securities beyond mutual funds and ETFs. These securities may include exchange listed and over-the-counter securities, foreign issues, warrants, corporate debt securities, commercial paper, certificates of deposit, municipal securities and US Government securities. The firm’s Investment Committee screens virtually all open end mutual funds and ETFs with respect to such criteria as fund ratings, risk-adjusted performance, fund size, manager tenure and availability of the fund to new investors. | Chief Executive Officer | 21/07/2005 |
Sun Microsystems, Inc.
 Sun Microsystems, Inc. SemiconductorsElectronic Technology Develops computer and storage systems, high-speed microprocessors and software solutions for computer networking | Corporate Officer/Principal | 01/01/2004 |
Training of John Shoemaker
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
97
1st degree connections
15
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 15 |
|---|---|
Advance Capital Management, Inc.
Advance Capital Management, Inc. Investment ManagersFinance ACM’s services are generally limited to advice and recommendations on those securities for which fees are charged, and recommended securities are generally limited to mutual funds and ETFs. In certain situations, they may provide investment advice on a range of securities beyond mutual funds and ETFs. These securities may include exchange listed and over-the-counter securities, foreign issues, warrants, corporate debt securities, commercial paper, certificates of deposit, municipal securities and US Government securities. The firm’s Investment Committee screens virtually all open end mutual funds and ETFs with respect to such criteria as fund ratings, risk-adjusted performance, fund size, manager tenure and availability of the fund to new investors. | Finance |
Altera Corp.
 Altera Corp. SemiconductorsElectronic Technology Designs and manufactures semiconductors & programmable logic devices | Electronic Technology |
Sun Microsystems, Inc.
Sun Microsystems, Inc. SemiconductorsElectronic Technology Develops computer and storage systems, high-speed microprocessors and software solutions for computer networking | Electronic Technology |
Xerox Corp.
 Xerox Corp. Computer PeripheralsElectronic Technology Manufactures and sells print & digital document products through online and provides related management software solutions | Electronic Technology |
Extreme Networks, Inc.
 Extreme Networks, Inc. Computer PeripheralsElectronic Technology Designs, develops and manufactures wired and wireless network infrastructure equipment & provides cloud-driven networking solutions | Electronic Technology |
SonicWall, Inc.
SonicWall, Inc. Information Technology ServicesTechnology Services Provides cybersecurity services and products | Technology Services |
Astute Networks, Inc.
 Astute Networks, Inc. Packaged SoftwareTechnology Services Develops and manufactures virtualization acceleration appliances | Technology Services |
Conformative Systems, Inc.
 Conformative Systems, Inc. Information Technology ServicesTechnology Services Develops and manufactures computer systems | Technology Services |
Indiana University Foundation, Inc.
Indiana University Foundation, Inc. Investment Trusts/Mutual FundsMiscellaneous Provides financial support to education and charitable causes | Miscellaneous |
Hanover College
Hanover College Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Indiana University
 Indiana University Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Shoemaker, Inc. (Indiana)
Shoemaker, Inc. (Indiana) Industrial MachineryProducer Manufacturing Manufactures industrial valve products | Producer Manufacturing |
Kelley School of Business
 Kelley School of Business Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Echo 360 Continuing Education LLC
 Echo 360 Continuing Education LLC Internet Software/ServicesTechnology Services Operates as an online learning platform | Technology Services |
Johnson Center For Entrepreneurship & Innovation |
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