Profile

Identity, professional record and current appointments.

Overview

Professional record at a glance

A concise summary of information supported by the cited public sources. Missing information is treated as unknown, not as a negative finding.

Current roles
33 current organizations shown on this profile
Board positions
33 supported by public sources, 0 supplied by the profile owner
Committee roles
6Roles supported by the sources cited on this profile
Qualifications
Not establishedNo qualification is currently confirmed by the cited sources

Professional narrative

About

Certified Public Accountant and former partner at Arthur Andersen with 28 years of experience. Most recently Vice President of Finance and Treasurer at Shamrock Foods. Extensive board experience at Knight-Swift Transportation and Amtech Systems. Deep knowledge of SEC rules and regulations.

Sources are shown with the information they support.

Current roles

Appointments & responsibilities

Board appointments

Governance

Board appointments, committee responsibilities and disclosed relationships.

Board and advisory record

Board service

Sources are shown with each role, education record, or credential.

Chair

Axon Enterprise

2026-04-16 · current

Confirmed by public sourceView source

Director

AMTECH SYSTEMS INC

2007-01-01 · current

Confirmed by public sourceView source

Director

Knight-Swift Transportation Holdings Inc.

2003-01-01 · current

Confirmed by public sourceView source

Connections

Explore the roles, education and affiliations published in this record.

AMTECH SYSTEMS INC

Open AMTECH SYSTEMS INC profile →

Director at AMTECH SYSTEMS INC

2007-01-01 → End not stated

current · source reported

Observed: 2026-09-21

AMTECH SYSTEMS INCAMTECH SYSTEMS INCAxon EnterpriseAxon EnterpriseKnight-Swift Trans…Knight-Swift Transportation Holdings Inc.Michael Garnreiter

Dashed lines mark past roles. Select a connection to see its dates and sources.

Relationship map

Connected through the public record

Direct relationships from verified facts and published résumé records. Private connections are excluded.

Direct public links only

Only published affiliations are shown here. Private relationships require authorized access.

Experience

Career history, education, credentials and public contributions.

Published record

Featured coverage

Selected publications and public sources used to establish this profile. Inclusion records provenance; it is not an endorsement.

Source 1 · Sec FilingAXON DEF 14A director slateSupports AI and ML experience, Board role, Committee assignments, Cybersecurity experience, Technology background.Open sourceSource 2 · Sec ProxyPublic profile sourceSupports Director at Knight-Swift Transportation Holdings Inc. (NYSE: KNX).Open sourceSource 3 · Sec FilingASYS DEF 14A director slateSupports Board role, Committee assignments.Open source

Basis

Identifiers, sources, dates and record limitations.

Identifiers

Alpha ID
alpha:person:michael-garnreiter
Record version
public-0

Sources

Sources and published information

Each item links to the public source used to support it. When sources disagree, the item is clearly marked for review.

AI and ML experience · Source reportedAI and ML experience: not identified in the cited filing1 source
Verification
Source reported
Confidence
72%
Last reviewed
May 16, 2026
  • SEC EDGAR

    Sec Filing · Tier 3 · Reviewed May 16, 2026

Board membership · Source reportedServes on the board of AMTECH SYSTEMS INC1 source
Verification
Source reported
Confidence
Not stated
Last reviewed
Not stated
Board membership · Source reportedServes on the board of Axon Enterprise1 source
Verification
Source reported
Confidence
Not stated
Last reviewed
Not stated
Board membership · Source reportedServes on the board of Knight-Swift Transportation Holdings Inc.1 source
Verification
Source reported
Confidence
Not stated
Last reviewed
Not stated
Board role · Source reportedBoard role: Chair1 source
Verification
Source reported
Confidence
92%
Last reviewed
May 16, 2026
  • SEC EDGAR

    Sec Filing · Tier 3 · Reviewed May 16, 2026

Board role · Source reportedBoard role: Director1 source
Verification
Source reported
Confidence
92%
Last reviewed
May 15, 2026
  • SEC EDGAR

    Sec Filing · Tier 3 · Reviewed May 15, 2026

Committee assignments · Source reportedCommittee assignments: Audit Committee, Compensation Committee, Nominating/Governance Committee1 source
Verification
Source reported
Confidence
88%
Last reviewed
May 16, 2026
  • SEC EDGAR

    Sec Filing · Tier 3 · Reviewed May 16, 2026

Committee assignments · Source reportedCommittee assignments: Audit, Compensation, Nominating/Governance1 source
Verification
Source reported
Confidence
88%
Last reviewed
May 15, 2026
  • SEC EDGAR

    Sec Filing · Tier 3 · Reviewed May 15, 2026

Cybersecurity experience · Source reportedCybersecurity experience: not identified in the cited filing1 source
Verification
Source reported
Confidence
72%
Last reviewed
May 16, 2026
  • SEC EDGAR

    Sec Filing · Tier 3 · Reviewed May 16, 2026

Technology background · Source reportedTechnology background: not identified in the cited filing1 source
Verification
Source reported
Confidence
72%
Last reviewed
May 16, 2026
  • SEC EDGAR

    Sec Filing · Tier 3 · Reviewed May 16, 2026

View all sources8 records
  1. SEC EDGAR

    Sec Filing · Tier 3 · Reviewed May 16, 2026

    Supports: AI and ML experience · Board role · Committee assignments · Cybersecurity experience · Technology background

  2. https://www.sec.gov/Archives/edgar/data/1069183/000162828026025521/axon-20260416.htm

    Sec Filing · Tier not stated · Reviewed May 16, 2026

    Supports: Chair at Axon Enterprise (NASDAQ: AXON)

  3. https://www.sec.gov/Archives/edgar/data/1492691/000149269126000025/knx-20260402.htm

    Sec Proxy · Tier not stated · Reviewed Jul 12, 2026

    Supports: Director at Knight-Swift Transportation Holdings Inc. (NYSE: KNX)

  4. SEC EDGAR

    Sec Filing · Tier 3 · Reviewed May 15, 2026

    Supports: Board role · Committee assignments

  5. https://www.sec.gov/Archives/edgar/data/720500/000119312526020762/asys-20260123.htm

    Sec Proxy · Tier not stated · Reviewed Apr 25, 2026

    Supports: Director at AMTECH SYSTEMS INC (NASDAQ: ASYS)

  6. https://www.sec.gov/Archives/edgar/data/1069183/000162828026025521/axon-20260416.htm

    Public Source · Tier not stated · Reviewed Not stated

    Supports: Board membership

  7. https://www.sec.gov/Archives/edgar/data/720500/000119312526020762/asys-20260123.htm

    Public Source · Tier not stated · Reviewed Not stated

    Supports: Board membership

  8. https://www.sec.gov/Archives/edgar/data/1492691/000149269126000025/knx-20260402.htm

    Public Source · Tier not stated · Reviewed Not stated

    Supports: Board membership