Executive record

John Gellert

President, Chief Executive Officer and Director at SEACOR Marine Holdings Inc.

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Alpha ID: alpha:person:john-gellertVersion: public-0As of: 2026-09-28

Not yet claimed10 published Claims3 sources
  • Executive
  • Director

Key Claims

Biography

Served as Co-Chief Operating Officer of SEACOR Holdings since February 2015 and President of SEACOR Holdings Offshore Marine Services segment since July 2005. Joined SEACOR Holdings in June 1992 and held various financial, analytical, chartering and marketing roles. Graduated from Harvard College.

Alpha editorial summary written from the cited sources below. It does not change any Claim on this record.

Board service

Boards

Claims

Executive career

  1. Current · dates not publishedPresident and Chief Executive Officer · SEACOR Marine Holdings Inc.
  2. 2026 to end not publishedExecutive title: President, Chief Executive Officer and a director of SEACOR Marine · Organization not publishedSMHI 10-K executive officers
  3. Dates not publishedExecutive title: President and Chief Executive Officer · Organization not published

Claims

Conflicts and accountability

Alpha has not published independence, related-party, proceedings or disciplinary Claims for this record. This is not a finding that none exist.

Only disclosed facts and public registers appear here. Executive records carry no credit, personal litigation, background screening or underwriting views. None observed is not a clearance.

Evidence, history and coverage

Additional published Claims

Published evidence records

3 evidence records, matching Agent View. Records may refer to different locations or observations in the same document. This count is not a count of independent corroborating sources.

  1. Open source

    sec def 14a · Source published: Apr 16, 2026 · Retrieved: Sep 13, 2026

    Supports 3 claims
    • Professional Role: President and Chief Executive Officer at SEACOR Marine Holdings Inc. · Claim reviewed: Sep 13, 2026
    • Professional Role: President, Chief Executive Officer and Director at SEACOR Marine Holdings Inc. · Claim reviewed: Sep 13, 2026
    • Executive title: Executive title: President and Chief Executive Officer · Claim reviewed: Sep 13, 2026

  2. SMHI 10-K executive officers

    sec filing · Source published: Feb 25, 2026 · Retrieved: May 16, 2026

    Supports 6 claims
    • AI and ML experience: AI and ML experience: not identified in the cited filing · Claim reviewed: May 16, 2026
    • Cybersecurity experience: Cybersecurity experience: not identified in the cited filing · Claim reviewed: May 16, 2026
    • Executive company: Executive at SEACOR Marine Holdings Inc. · Claim reviewed: May 16, 2026
    • Executive title: Executive title: President, Chief Executive Officer and a director of SEACOR Marine · Claim reviewed: May 16, 2026
    • Other Company Role: John Gellert is also linked to Multiple industry organizations as Member of the Executive Committee of International Support Vessel Owners Association; Member of the board of directors of Offshore Marine Service Association; Former chairman of National Ocean Industries Association; Member of the Executive Council at Cohesive Capital Management, L.P.. · Claim reviewed: May 16, 2026
    • Technology background: Technology background: not identified in the cited filing · Claim reviewed: May 16, 2026

  3. Open source

    public source · Source published: Date unavailable · Retrieved: Date unavailable

    Supports 1 claim
    • Board membership: Serves on the board of SEACOR Marine Holdings Inc. · Claim reviewed: Sep 13, 2026