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Steven Dyson

Chief Executive Officer at ZYXI
CEO
Executive
Board

About Steven Dyson

Steven Dyson, 52, became CEO of Zynex on August 18, 2025, and joined the Board the same day; he previously served 25+ years in global healthcare private equity, most recently as Global Co‑Head of Healthcare at Apax Partners (2012–2025). He holds a Ph.D. in Developmental Biology from the University of Cambridge and an M.A. in Biochemistry from the University of Oxford . As CEO, his annual cash bonus is target 100% of base with quarterly installments, and he has a transaction-based Success Fee tied to change‑of‑control value creation rather than traditional equity; 2025 bonus goals were to be set by September 30, 2025 . The Board chair/CEO roles are now separated (Chair: Thomas Sandgaard), addressing a prior combined role disclosed in the 2025 proxy .

Past Roles

OrganizationRoleYearsStrategic impact
Apax PartnersGlobal Co‑Head of Healthcare2012–2025Led investments across medtech, biopharma and services; deep transaction and operating experience .
Apax PartnersVarious investment/operational roles2000–2012Built healthcare investing expertise ahead of leadership role .

External Roles

OrganizationRoleYearsStrategic impact
Advantage Mentoring CIC (UK)Founder & Chair2022–presentCommunity mental health mentorship; non‑profit governance exposure .
Dyson Properties Ltd (UK)Part ownerOngoingFamily commercial real estate; passive ownership >5% .
Synaptive Medical (Canada)Prospective Board member, investorTarget 2025Neuro/spine surgical tech; prospective role subject to approvals .
Risolv Health Ltd (UK)Prospective Board member, investor (>5% likely)Target 2025Consumer health OTC portfolio build‑out; prospective role subject to approvals .

Fixed Compensation

ComponentTerms
Base salary$750,000 initial annual base salary .
Annual bonus (cash)Target up to 100% of base; paid quarterly if milestones met; 2025 bonus prorated with goals set by 9/30/2025 .
BenefitsEligible for executive benefit plans; PTO accrual 28 days/year; UK pension auto‑enrolment per side letter .
Work locationPrimary residence London; ~120 days/year at Colorado HQ; Company to avoid U.S. tax residency .

Performance Compensation

Metric/InstrumentWeightingTarget/StructurePayout mechanicsVesting
Annual bonus (cash)Not disclosedTarget 100% of salary; milestones set by Compensation Committee (executive and company performance)Quarterly installments; Q4 installment within 75 days of fiscal year endNo vesting; service through bonus period required .
Success Fee (Change of Control)N/A (event‑based)5% of Net Proceeds above $100,000,000 baseline thresholdPaid in cash or same consideration as shareholders at closing and subsequent earnout/escrow releases (subject to 409A cap)Vests 1/12 on each quarterly anniversary from Start Date; unvested portion fully vests upon Change of Control while in service .

Notes:

  • Net Proceeds equal total consideration received/receivable by holders, fully diluted, excluding out‑of‑the‑money instruments; baseline threshold adjusts for dividends/recaps .
  • If deal is <100% stock purchase or an asset sale, formulas adjust per agreement .

Equity Ownership & Alignment

  • Equity grants: In lieu of initial and annual equity awards, Dyson receives the Success Fee structure; no standard RSUs/options are specified in his agreement (reduces dilution but concentrates incentives on strategic transaction outcomes) .
  • Initial beneficial ownership filing: A Form 3/4 was reported on/around September 2, 2025 for “Dyson Steven Lewis” (details not provided on share count) .
  • Insider trading policy restricts trading windows; no specific pledging prohibition disclosed in the proxy .

Employment Terms

TermDetail
Start dateAugust 18, 2025 .
Contract natureAt‑will; arbitration agreement included .
Non‑compete / Non‑solicitNon‑compete for 18 months post‑termination in U.S. “Restricted Business”; employee/contractor non‑solicit during employment and 18 months post‑termination; customer non‑solicit during employment and 18 months .
IndemnificationNew form of director/officer indemnification agreement executed for all officers/directors effective June 30, 2025 .
ClawbackCompany Nasdaq‑compliant clawback; Employment Agreement states future clawbacks do not apply to Success Fee or pre‑adoption equity and includes misconduct clawback tied to court finding of willful misconduct/fraud; Company advances legal fees per indemnification .
Severance (no CoC)If terminated without cause or resigns for Good Reason: 18 months of base salary; monthly cash equal to employer portion of health benefits for up to 12 months; subject to release and covenants .
Market Cap Severance (if no CoC before termination)Cash (or registered shares) equal to 5% of Termination Date Market Cap above baseline threshold (with special tier for Start Date Market Cap > baseline), vesting on same quarterly schedule as Success Fee; no entitlement if resigns without Good Reason within first year; illustrated payout examples provided in agreement .
280G treatment50% excise tax gross‑up on “parachute” excise tax (shareholder‑unfriendly) with accountant determination and true‑up .
Place of work / UK termsUK law side letter covers pension auto‑enrolment (min 3% Company/5% employee), UK holiday integration, working time opt‑out, UK notice/pay in lieu alignment, data protection; disputes on UK statutory rights under England and Wales law .

Board Governance

  • Appointment and composition: On August 18, 2025, the Board expanded from four to five directors and elected Dyson as a director. He will not receive additional compensation for Board service .
  • Leadership structure: As of March 28, 2025, the proxy disclosed CEO/Chair roles were combined and no Lead Independent Director; following Dyson’s appointment, roles are split (Chair: Thomas Sandgaard; CEO: Dyson). The Board still discloses no LID role in the proxy period .
  • Committee structure (proxy period): Audit (Chair Michaels), Compensation (Chair Cress), Nominating & Governance (Chair Disbrow); all committee members independent under Nasdaq .
  • Meeting cadence (2024): Board met 5 times; each director ≥75% attendance; Audit met 4x; Compensation met 1x; N&G met 4x .

Director Compensation (Dyson)

  • No additional cash or equity compensation for Dyson’s director role per August 18, 2025 8‑K .
  • Non‑employee director pay (context from proxy): cash retainers and annual RSU grants (not applicable to Dyson as an employee director) .

Compensation Structure Analysis

  • Shift away from equity toward event‑based Success Fee: Dyson’s package replaces traditional RSUs/options with a substantial 5% Success Fee on value above $100M at Change of Control, vesting quarterly with full vesting at CoC. This concentrates incentives on strategic transaction and shareholder value realization at exit, not ongoing TSR/operating targets .
  • Cash orientation and quarterly mechanics: Target 100% cash bonus with quarterly installments provides frequent performance calibration but lacks disclosed metric weightings; goals set by the Compensation Committee (2025 timing specified) .
  • Potential pay magnitudes: Illustrative example in the agreement shows a $12.5M Success Fee at $350M Net Proceeds (if 100% vested), and a Market Cap Severance example totaling up to $10M (if 100% vested on $200M excess), underscoring material upside aligned with deal value and market cap at termination .
  • Shareholder‑unfriendly features: 50% 280G gross‑up and carve‑out from future clawbacks for the Success Fee/equity granted prior to adoption (though Company maintains Nasdaq‑compliant clawback) .

Risk Indicators & Red Flags

  • Significant change‑of‑control incentive (5% above $100M) that could bias toward strategic transactions; mitigated by quarterly vesting requirement and continued service condition .
  • Excise tax gross‑up (50% of computed amount) is viewed negatively in governance assessments .
  • No Lead Independent Director noted in proxy period; however, separation of Chair and CEO roles occurred upon Dyson’s appointment (mitigating prior concentration) .
  • Internal control weaknesses disclosed (ITGC material weakness; A/R valuation weakness remediated by 2024) plus auditor transition to CBIZ post‑Marcum resignation; increases oversight burden on CEO and Audit Committee .

Say‑on‑Pay & Shareholder Feedback

  • The 2025 proxy enumerates Compensation Committee responsibilities (including say‑on‑pay frequency planning) but does not disclose a 2025 say‑on‑pay vote in the items presented; no vote outcomes provided for say‑on‑pay in the cited proxy .

Performance & Track Record

  • Background: 25+ years in healthcare investing with Apax; advanced science education (Cambridge/Oxford) .
  • Zynex communications: As CEO and Director, Dyson appeared on the Q3 2025 earnings call (prepared remarks transcript) .

Compensation & Ownership Tables

Key Compensation Terms

ItemAmount/TermSource
Base Salary$750,000
Target Annual Bonus100% of base (cash)
Bonus TimingQuarterly installments; 2025 goals by 9/30/2025; Q4 installment within 75 days of year‑end
Success Fee (CoC)5% of Net Proceeds above $100,000,000 baseline
Success Fee Vesting1/12 each quarter from Start Date; full vest at CoC if in service
Market Cap Severance (if no CoC before termination)5% of Termination Date Market Cap above baseline (with special tier when Start Date Market Cap > baseline); same vesting as Success Fee
Severance (no CoC)18 months base salary; up to 12 months COBRA‑equivalent cash; subject to release
280G Treatment50% excise tax gross‑up

Board Service

ItemDetailSource
Board AppointmentElected director on August 18, 2025
Board Size ChangeIncreased from 4 to 5 directors; Dyson filled vacancy
Director CompensationNone for Dyson’s Board service
Chair/CEO SplitChair remains Thomas Sandgaard; Dyson is CEO
Lead Independent DirectorNone disclosed in proxy period

Trading and Ownership (available disclosures)

ItemDetailSource
Initial Beneficial OwnershipForm 3/4 reported around 2025‑09‑02 for “Dyson Steven Lewis” (details not shown)
Insider Trading PolicyWindowed trading; prohibits trading on MNPI

Compensation Committee Analysis (context)

  • Committee chaired by independent director Michael Cress; members Michaels and Disbrow; uses comparator data and oversees CEO goals and compensation plan design .
  • The committee’s remit includes stock ownership guidelines for executives and monitoring compliance, though specific CEO guideline multiples were not disclosed in the proxy .

Related Party Transactions

  • None disclosed involving Dyson; company policy requires N&G Committee review of related party transactions >$120,000 .

Investment Implications

  • Alignment and incentives: The Success Fee and Market Cap Severance strongly tie Dyson’s upside to transaction value and market cap, creating a clear incentive for strategic alternatives and rapid value realization, while reducing equity dilution. Expect prioritization of operational fixes that support valuation, optionality for M&A, and tight cost/controls given recent ITGC weakness .
  • Governance signal: Separation of Chair/CEO is a positive governance shift versus the 2025 proxy period; lack of a Lead Independent Director persists, but committee independence remains intact .
  • Shareholder‑unfriendly features: The presence of a 280G gross‑up and Success Fee clawback carve‑out may draw scrutiny in say‑on‑pay reviews and from governance‑focused investors .
  • Trading/overhang: With no traditional equity grants to Dyson, near‑term insider selling pressure from CEO awards should be limited; however, large inducement awards to other incoming executives (CFO, CLO) introduce incremental equity overhang and vesting‑linked selling potential over time .