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
11 current organization shown on this profile
Board positions
11 supported by public sources, 0 supplied by the profile owner
Committee roles
Not establishedNo committee role is currently confirmed by the cited sources
Qualifications
Not establishedNo qualification is currently confirmed by the cited sources

Professional narrative

About

Chief Executive Officer and President since December 2012, previously Chief Operating Officer from 2006-2012. Held various positions at National Semiconductor Corporation including Product Line Director and marketing/business development roles. Holds B.S. and M.S. in Electrical Engineering from Stanford University and MBA from UC Berkeley.

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.

Director

GCT Semiconductor Holding, Inc.

2026-08-03 · current

Confirmed by public sourceView source

Connections

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

GCT Semiconductor Holding, Inc.

Open GCT Semiconductor Holding, Inc. profile →

Director at GCT Semiconductor Holding, Inc.

2026-08-03 → End not stated

current · source reported

Observed: 2026-09-15

GCT Semiconductor …GCT Semiconductor Holding, Inc.John Schlaefer

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 ProxyPublic profile sourceSupports Director at GCT Semiconductor Holding, Inc. (NYSE: GCTS-WT).Open sourceSource 2 · Sec FilingGCTS-WT 10-K executive officersSupports AI and ML experience, Cybersecurity experience, Executive company, Executive title, Technology background.Open source

Basis

Identifiers, sources, dates and record limitations.

Identifiers

Alpha ID
alpha:person:john-schlaefer
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 Jul 28, 2026

Board membership · Source reportedServes on the board of GCT Semiconductor Holding, Inc.1 source
Verification
Source reported
Confidence
Not stated
Last reviewed
Not stated
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 Jul 28, 2026

Executive company · CorroboratedExecutive at GCT Semiconductor Holding, Inc.Supported by 2 public records2 sources
Verification
Corroborated
Confidence
94%
Last reviewed
Jul 28, 2026
  • SEC EDGAR

    Sec Filing · Tier 3 · Reviewed May 16, 2026

  • SEC EDGAR

    Sec Filing · Tier 3 · Reviewed Jul 28, 2026

Executive title · CorroboratedExecutive title: President, Chief Executive Officer and Class III DirectorSupported by 2 public records2 sources
Verification
Corroborated
Confidence
94%
Last reviewed
Jul 28, 2026
  • SEC EDGAR

    Sec Filing · Tier 3 · Reviewed May 16, 2026

  • SEC EDGAR

    Sec Filing · Tier 3 · Reviewed Jul 28, 2026

Technology background · Source reportedTechnology background reported in filings1 source
Verification
Source reported
Confidence
72%
Last reviewed
May 16, 2026
  • SEC EDGAR

    Sec Filing · Tier 3 · Reviewed Jul 28, 2026

View all sources4 records
  1. https://www.sec.gov/Archives/edgar/data/1851961/000119312526330575/gcts-20260803.htm

    Sec Proxy · Tier not stated · Reviewed Sep 2, 2026

    Supports: Director at GCT Semiconductor Holding, Inc. (NYSE: GCTS-WT)

  2. SEC EDGAR

    Sec Filing · Tier 3 · Reviewed Jul 28, 2026

    Supports: AI and ML experience · Cybersecurity experience · Executive company · Executive title · Technology background

  3. SEC EDGAR

    Sec Filing · Tier 3 · Reviewed May 16, 2026

    Supports: Executive company · Executive title

  4. https://www.sec.gov/Archives/edgar/data/1851961/000119312526330575/gcts-20260803.htm

    Public Source · Tier not stated · Reviewed Not stated

    Supports: Board membership