Executive record

Tom Stepien

Director at Amprius Technologies, Inc.

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Alpha ID: alpha:person:tom-stepienVersion: public-0As of: 2026-09-28

Not yet claimed9 published Claims3 sources
  • Director

Key Claims

Biography

Tom Stepien was appointed President and Class I director effective May 1, 2025. He served as CEO of South 8 Technologies from August 2023 to March 2025 and was an Operating Partner at KCK Group from December 2020 to July 2023. He co-founded Primus Power in 2009 and held leadership roles at Applied Materials from 1995 to 2009. He holds B.S. and M.S. degrees in Mechanical Engineering from MIT.

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. Dates not publishedExecutive title: President · Organization not publishedAMPX DEF 14A director slate

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. AMPX DEF 14A director slate

    sec filing · Source published: Apr 25, 2025 · Retrieved: May 15, 2026

    Supports 7 claims
    • AI and ML experience: AI and ML experience: not identified in the cited filing · Claim reviewed: May 15, 2026
    • Board role: Board role: Director · Claim reviewed: May 15, 2026
    • Committee assignments: No committee assignment disclosed in the cited filing · Claim reviewed: May 15, 2026
    • Cybersecurity experience: Cybersecurity experience: not identified in the cited filing · Claim reviewed: May 15, 2026
    • Executive company: Executive at Amprius Technologies, Inc. · Claim reviewed: May 15, 2026
    • Executive title: Executive title: President · Claim reviewed: May 15, 2026
    • Technology background: Technology background reported in filings · Claim reviewed: May 15, 2026

  2. Open source

    sec proxy · Source published: Apr 25, 2025 · Retrieved: Apr 24, 2026

    Supports 1 claim
    • Professional Role: Director at Amprius Technologies, Inc. · Claim reviewed: May 15, 2026

  3. Open source

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

    Supports 1 claim
    • Board membership: Serves on the board of Amprius Technologies, Inc. · Claim reviewed: May 15, 2026