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Stefanie Westphal Thompson

Director at Vertex
Board

About Stefanie Westphal Thompson

Independent director at Vertex, Inc. (VERX), age 62, serving on the board since 1993; she joined Vertex in 1991 and previously served in various roles including Treasurer . She holds an MBA in Finance from Fordham University and dual BAs in Engineering and Economics from Lafayette College; she is a member of NACD .

Past Roles

OrganizationRoleTenureCommittees/Impact
Vertex, Inc.Treasurer; various rolesJoined 1991; Director since 1993Longstanding company knowledge and corporate finance experience
Chemical Bank (now part of Chase)Vice PresidentPre-1991Managed banking relationships for middle-market companies

External Roles

OrganizationRoleTenureCommittees/Impact
Bryn Mawr Hospital Foundation BoardVice-Chair; Head of Trustee Committee8 yearsBoard leadership and governance in healthcare philanthropy
The Agnes Irwin School (Rosemont, PA)Trustee; Head of Trustees Committee10 yearsEducation board governance and committee leadership
NACDMemberOngoingProfessional director development and governance standards

Board Governance

  • Current committees (2024 activity, current membership): Human Capital Committee member; HCC met 6 times in 2024; chair Philip Saunders; other members Eric Andersen and Thompson .
  • Audit Committee: 3 independent members; 10 meetings in 2024; Thompson is not listed as a member .
  • Nominating and Governance Committee: 3 independent members; 6 meetings in 2024; Thompson is not listed as a member .
  • Independence: The Board determined six of seven current directors, including Stefanie Thompson, are independent under SEC/Nasdaq rules .
  • Attendance: 5 Board meetings in 2024; each director attended at least 75% of Board and committee meetings . Executive sessions of non-employee directors are held regularly; presided by the lead independent director .
  • Lead Independent Director: Eric Andersen .
  • Governance structure: Vertex is a “controlled company” under Nasdaq due to the Stockholders’ Agreement among the Westphal siblings/family, which grants director designation and voting commitments; Vertex states it does not currently rely on controlled company exemptions but may do so in future .
  • Shareholder votes (June 12, 2024): Thompson re-elected with 903,500,953 votes “For”, 18,835,435 “Withheld”, 3,462,689 broker non-votes; Crowe LLP ratified as auditor; Say-on-Pay approved; triennial frequency approved .
  • Say-on-Pay support: ~99% approval at 2024 annual meeting; Board intends triennial say-on-pay votes .

Fixed Compensation

ComponentProgram TermsThompson’s 2024 Actual
Annual cash retainer$42,000$46,146 (includes committee fees)
Committee chair/member feesHCC Chair: $15,000; HCC member: $7,500; Audit Chair: $20,000; Audit member: $10,000; NGC Chair: $12,000; NGC member: $6,000; Lead independent: $20,000Included in cash total as applicable
Equity retainer (RSU/Restricted Stock)Annual grant equal to $200,000 divided by closing price on grant date; vests in one installment before next annual meeting or first anniversary; accelerates on change of control$200,017 grant-date fair value for 2024

Notes: Director fees are paid monthly; Vertex does not pay per-meeting fees .

Performance Compensation

FeatureDetails
Director performance metricsNot applicable (director equity is time-based; no performance metrics)
Vesting scheduleAnnual director restricted stock/RSU vests in a single installment on earlier of day before next annual meeting or first anniversary; accelerates on change in control

Other Directorships & Interlocks

ItemDetails
Public company boardsNone disclosed for Thompson
Family relationshipsThompson and fellow director Amanda Westphal Radcliffe are siblings; parties to Stockholders’ Agreement with Jeffrey Westphal (director designation and voting commitments)

Expertise & Qualifications

  • Corporate finance and banking expertise (former VP at Chemical Bank) .
  • Deep company knowledge from over three decades of service (joined 1991; director since 1993) .
  • Governance leadership in nonprofit/education boards; NACD member .

Equity Ownership

HoldingQuantity% ClassCombined Voting Power
Class A Common Stock46,030 shares<1%
Class B Common Stock (10 votes/share)32,934,904.588 shares38.1% of Class B35.2% combined voting power
Director RSUs outstanding (12/31/2024)5,705 units

Policy environment:

  • Anti-hedging and anti-pledging: Company policy prohibits hedging and pledging Company securities by directors, officers, employees, and controlled entities .
  • Clawback: Adopted in July 2023 per SEC/Nasdaq Rule 10D-1 for executive incentive comp recovery upon restatement (executives; not a director-specific provision, but shows governance posture) .
  • Stock ownership guidelines: Vertex states it maintains stock ownership guidelines for executive officers and directors; specifics for directors are not detailed in the 2025 proxy .

Recent insider transactions (Form 4):

Transaction DateFiling DateTypeShares AcquiredPost-Transaction Ownership (Class A)FormSource
2025-06-112025-06-13A (Award)5,32751,3574
2024-06-122024-06-14A (Award)5,70546,0304

Governance Assessment

Strengths:

  • Formal independence determination under SEC/Nasdaq, despite substantial family ownership; robust committee structure with fully independent Audit, HCC, and NGC; regular executive sessions; lead independent director role .
  • High shareholder support for executive compensation (99% Say‑on‑Pay) and transparent compensation practices (no tax gross-ups; clawback in place) .

Risks and RED FLAGS:

  • Controlled company dynamics: The Stockholders’ Agreement grants director designation rights and requires parties to vote all shares for designated nominees; this creates entrenchment risk and potential conflicts with minority shareholder interests; Vertex notes it may rely on controlled company exemptions in future .
  • Concentrated voting power: Thompson’s personal Class B stake confers ~35% combined voting power; combined Westphal family voting control exceeds 50%, limiting the practical effect of minority votes on director elections and governance changes .
  • Committee role vs. independence optics: Thompson’s service on the Human Capital Committee (compensation oversight) while being part of the controlling family group may be scrutinized for perceived independence, even with formal independence determinations .

Shareholder voting and engagement signals:

  • Strong re-election margin in 2024 suggests investor acceptance of current governance; however, continued monitoring is warranted given controlled structure .
  • Triennial cadence for Say‑on‑Pay approved; investors should track HCC decisions and composition over time .

Policies mitigating alignment concerns:

  • Prohibition on hedging and pledging reduces misalignment/credit risk signals; director equity is time-based without performance metrics, aligning tenure with ownership but not tying compensation to shareholder returns .

Director compensation context:

  • Year-over-year increase in annual equity grants from $150,000 (2022) to $200,000 (2023 onward) aligns with market practice; Thompson’s 2024 total director compensation was $246,163 ($46,146 cash; $200,017 equity) .

Overall implication for investors:

  • Governance quality is supported by independent committees, lead director structure, and strong shareholder support on pay. The predominant risk factor remains concentrated family voting control via Class B and binding director designation/voting rights, which can limit board refresh flexibility and minority influence. Investors should monitor committee composition, any future reliance on controlled-company exemptions, and adherence to anti‑hedging/pledging policies over time .