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Walden C. Rhines

Walden C. Rhines

Chief Executive Officer at Silvaco Group
CEO
Executive
Board

About Walden C. Rhines

Walden C. “Wally” Rhines (age 78) is Chief Executive Officer of Silvaco Group (SVCO) effective August 19, 2025, after serving as an independent director and Audit Committee member since September 2022; he holds a B.S.E. (Univ. of Michigan), M.S. and Ph.D. in materials science (Stanford), and an MBA (SMU Cox) . He previously led Mentor Graphics as CEO (1993–2017) through its sale to Siemens and has chaired Qorvo’s board since November 2023; at Silvaco, Q3 2025 posted record revenue of $18.7M alongside a cost-out plan expected to reduce annualized non-GAAP opex by ≥$15M, framing his initial execution priorities .

Past Roles

OrganizationRoleYearsStrategic ImpactSource
Mentor Graphics (now Siemens EDA)President & CEO; Chairman (from 2000)1993–2017 (CEO); Chair to 2017Led EDA specialist through sale to Siemens in 2017; continued as President & CEO of Siemens EDA 2017–2018; CEO Emeritus to 2020
Siemens EDA (formerly Mentor Graphics, a Siemens Business)President & CEO2017–2018Post-acquisition integration and continuity of EDA franchise
Texas InstrumentsEVP, Semiconductor Group21 yearsSenior leadership across semiconductor operations

External Roles

OrganizationRoleCommittee/NotesSource
Qorvo (NASDAQ: QRVO)Chairman (since Nov 2023); Director since 2015Former Comp Committee Chair; current Chairman
CornamiPresident & CEO (since 2020); DirectorFabless semiconductor
Caspia (EDA startup)ChairmanPermitted external activity under SVCO agreement
Pallidus (SiC manufacturer)DirectorPermitted external activity
Alpha Design AIAdvisorPermitted external activity
Academic/Non-profit rolesSMU Engineering Exec Committee Chair; Univ. of Florida advisory roles; The Rhines Foundation TrusteeGovernance/industry ecosystem

Fixed Compensation

ComponentAmount/TermsPeriod/NotesSource
CEO Base Salary$160,000 per yearEmployment Agreement effective Aug 19, 2025; term through Mar 31, 2027
Non-employee Director Cash Fees$48,750FY 2024; prior to CEO appointment
Non-employee Director Equity$149,773 (grant-date fair value)7,858 RSUs granted July 11, 2024
Director Program (structure)$40,000 annual retainer; $5,000 Audit member; annual RSU ~$150,000 value; vest earlier of 12 months/next AGM/CICFY 2024 program parameters

Upon becoming CEO, Rhines ceased receiving non-employee director compensation and instead is compensated per the CEO agreement .

Performance Compensation

  • CEO PRSU Program (high at-risk, stock-price based):
    • PRSUs granted upon achieving 20-trading-day VWAP thresholds of $4.50, $10.00, $12.00, and $15.00 during the service period; grant-date fair values per threshold range from $100,000 to $1,563,159; earned PRSUs vest following continued employment through March 31, 2027; all PRSUs accelerate on specified severance events (see Employment Terms) .
MetricTarget/TriggerGrant Value (per trigger)WeightingActual/PayoutVestingSource
Stock Price VWAP$4.50 (20-day VWAP)$100,000N/AN/AVests at end of term; accelerates on qualifying severance
Stock Price VWAP$10.00 (20-day VWAP)$803,607N/AN/ASame as above
Stock Price VWAP$12.00 (20-day VWAP)$1,107,428N/AN/ASame as above
Stock Price VWAP$15.00 (20-day VWAP)$1,563,159N/AN/ASame as above
  • Director RSUs (prior role): Annual ~$150,000 grant; vest on earlier of 12 months, next AGM, or change in control, creating periodic settlement events but not option-derived selling pressure .

  • Clawback: Company has a compensation recovery policy aligned with Rule 10D-1; as CEO, Rhines is subject to recovery of erroneously awarded incentive compensation in restatement scenarios .

  • Tax gross-ups: Company states “No excise tax gross-ups” among governance practices .

Equity Ownership & Alignment

MeasureDetailSource
Total beneficial ownership21,296 shares; <1% of outstanding
Near-term vestingIncludes 7,858 RSUs vesting within 60 days of March 25, 2025 (while he was a director)
Unvested RSUs (12/31/2024)7,858 RSUs outstanding (director grant)
OptionsNone disclosed for directors
Pledging/HedgingInsider policy prohibits derivatives, hedging, margining, and pledging without prior written pre-clearance; no pledges disclosed for Rhines

Ownership guidelines: Not disclosed in the proxy; anti-hedging/pledging policy in place; Principal Stockholder pledging disclosed separately, highlighting pre-clearance regime but not applicable to Rhines .

Employment Terms

TermKey ProvisionSource
Effective date; TermCEO effective Aug 19, 2025; term through Mar 31, 2027
Base salary$160,000
EquityPRSUs granted upon VWAP triggers; vest at end of term; grants sized by grant-date fair value and closing price shares
Severance (no-CIC schedule specific to CEO agreement)Lump-sum based on months served: <6 mo $500k; 6–<9 mo $600k; 9–<12 mo $800k; ≥12 mo to term end $1,000k; accelerated vesting of all outstanding PRSUs upon qualifying termination; release required
Restrictive covenantsConfidential Information and Invention Assignment Agreement; continued compliance required for severance and acceleration
IndemnificationCompany indemnification agreement
Permitted outside rolesExplicitly permitted portfolio (e.g., Qorvo Chair; Caspia Chair; Pallidus Board; Cornami Board; academic/nonprofit roles)

Board Governance

  • Status and roles: Director since 2022; Audit Committee member (committee of independent directors); after CEO appointment he is an executive (not independent) .
  • Attendance: In 2024 the Board met 16 times; all directors met at least 75% attendance (committee meetings: Audit met 10x; Comp 9x; NCG 7x) .
  • Controlled company: SVCO is a Nasdaq “controlled company” (Principal Stockholders ~69.8%); board intends to rely on exemptions for fully independent Compensation and NCG committees; Audit Committee remains fully independent per rules .
  • Board leadership: Non-executive Chair (Katherine S. Ngai-Pesic) with Lead Independent Director (Hau L. Lee) structure; regular executive sessions .

Director Compensation (2024)

NameCash Fees ($)Stock Awards ($)Unvested RSUs (12/31/2024)Total ($)Source
Walden C. Rhines48,750149,7737,858198,523

Program terms: $40k retainer (+$30k LID/Chair if applicable), committee retainers ($15k chair/$5k member), annual RSU grant ~$150k; RSUs vest earlier of 12 months/next AGM/CIC .

Company Performance Context

MetricQ4 2024Q1 2025Q2 2025Q3 2025
Revenues ($)17,859,000*14,092,000*12,048,000*18,672,000*
EBITDA ($)-976,000*-6,125,000*-9,435,000*-5,454,000*

Values retrieved from S&P Global.*

Additional company disclosures: Q3 2025 revenue reached a record $18.7M with GAAP operating loss of $9.3M; company initiated a cost reduction program expected to reduce annualized non-GAAP opex by at least $15M .

Compensation Structure Analysis

  • Strong pay-for-performance tilt: Extremely low base salary ($160k) with the vast majority of CEO expected value tied to stock-price PRSUs (four VWAP hurdles), aligning incentives to shareholder returns; vesting requires continued service to term end, reinforcing retention .
  • No single-trigger norm and clawback in place: Company states no single-trigger CIC provisions and has an SEC Rule 10D-1 compliant clawback policy; reduces windfall risk and enhances governance hygiene .
  • Director equity cadence: Annual RSUs for non-employee directors vest on a short cycle (≤12 months), creating predictable settlement timing; as CEO, Rhines no longer participates in director grants .
  • External commitments governed: Employment agreement explicitly defines permitted outside roles, mitigating conflict/attention risk through formal disclosure and consent framework .

Employment & Contracts (Retention/Transition)

  • Term-certain through 3/31/2027 with staggered severance: Scaled lump-sum severance ranging from $500k to $1,000k depending on tenure length, plus PRSU acceleration upon qualifying termination, provides a floor that could modestly reduce departure risk while preserving performance alignment via market-based earn-in .
  • Policy overlays: Anti-hedging/pledging and clawback policies apply to officers; pre-clearance for any pledging; enhances alignment and reduces governance red flags .
  • Management transition backdrop: CEO transition occurred in Aug 2025; CFO transition (resignation in Apr 2025; new CFO appointed Sept 2025) reflects leadership refresh and execution focus .

Board Service: History, Committees, Independence

  • Board tenure: Director since 2022; independent prior to CEO appointment; Audit Committee member throughout service as director .
  • Committee meeting cadence: Audit Committee met 10 times in 2024; all directors achieved ≥75% attendance; Audit Committee independence and financial literacy confirmed (audit chair is Molloie; financial expert designation) .
  • Dual-role implications: Current structure separates Chair (non-executive) and CEO roles, with a Lead Independent Director; as a “controlled company,” SVCO relies on certain independence exemptions for Compensation and NCG committees, partially offset by a fully independent Audit Committee .

Related Party Transactions and Conflicts

  • Rhines-specific: Company disclosed no related party transactions for Rhines under Item 404(a) in connection with his appointment .
  • Company-wide (context): Related party arrangements primarily involve Principal Stockholders; oversight via Audit Committee policy .

Compensation Committee and Advisors

  • Composition and practice: Compensation Committee met 9 times in 2024; retains independent advisor Compensia to benchmark market practices; committee independence affirmed under Nasdaq standards .

Risk Indicators & Red Flags

  • Governance risk: Controlled company status (69.8% voting power by Principal Stockholders) with independence exemptions on comp/NCG committees; mitigations include independent Audit Committee and lead independent director .
  • Execution and turnover: CEO and CFO transitions in 2025 create near-term execution risk; management is pursuing cost discipline and integration post acquisitions .
  • Hedging/pledging: Policy prohibits hedging and pledging without pre-clearance; no pledging disclosed for Rhines .

Investment Implications

  • Alignment: Rhines’ package is heavily equity-levered with explicit share-price hurdles and end-of-term vesting, signaling confidence-based alignment and incentivizing multiquarter value creation; low base salary reduces fixed cash burn .
  • Retention and supply overhang: PRSUs vest at term end or accelerate on qualifying severance, limiting near-term selling pressure; prior director RSUs follow an annual cadence, but he no longer receives director grants as CEO .
  • Governance watchpoints: Controlled-company exemptions and multiple permitted external roles warrant ongoing monitoring for independence/attention risk, though formalized permitted-activity schedules and a strong Audit Committee/lead independent structure are mitigating .
  • Execution swing factors: Record Q3 revenue with ongoing operating losses and a ≥$15M annualized non-GAAP opex reduction initiative set up a clear operating leverage thesis; delivery against revenue growth and cost targets will be key to PRSU trigger realization and equity value creation .
Citations: All bracketed references [doc_id:chunk_idx] correspond to SEC filings and company documents retrieved above.