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Ellen Siminoff

Executive Chair of the Board at BIGCBIGC
Board

About Ellen F. Siminoff

Ellen F. Siminoff, 57, has served on BigCommerce’s board since February 2020 and became Executive Chair in October 2024. She is a long-tenured media and technology executive, a founding executive at Yahoo! (1996–2002), and holds an A.B. in Economics from Princeton and an M.B.A. from Stanford GSB . Her current role focuses on board leadership and strategic oversight alongside the CEO, with a clear separation of duties between governance and day-to-day operations .

Past Roles

OrganizationRoleTenureCommittees/Impact
Yahoo!Founding ExecutiveFeb 1996 – Feb 2002Early-stage leadership shaping online media and commerce strategy

External Roles

OrganizationRoleTenureNotes
Take-Two Interactive (via Zynga)DirectorSince May 2022 (Zynga since Jun 2012)Joined Take-Two board post Zynga combination
Follett CorporationDirectorSince Aug 2022K-12 solutions partner
VerifoneDirectorSince Mar 2021Global payments platform
Hoover Institution (Stanford)Board of OverseersSince Sept 2022Academic governance
Prior: Shmoop University; SolarWinds; Discovery Education; Mozilla; Princeton President’s Advisory CommitteeDirector/AdvisorVariousHistorical board/committee experience

Board Governance

  • Classification and tenure: Class III director; term expires at the 2026 annual meeting; designated Executive Chair since Oct 2024 .
  • Independence: BigCommerce’s board determined five of seven directors are independent; Ms. Siminoff is not independent given her Executive Chair (employee) status .
  • Committee assignments: None; Ms. Siminoff does not serve on audit, compensation, or nominating and governance committees; current committee composition excludes her .
  • Attendance and engagement: Board met 14 times in 2024; each member attended ≥75% of board/committee meetings; all directors attended the 2024 annual meeting .
  • Leadership structure: Executive Chair role provides governance and strategic oversight; CEO leads operations; Jeff Richards serves as Lead Independent Director (agenda approval and liaison) .
  • Risk oversight: Audit oversees accounting/financial reporting/privacy/cybersecurity; Compensation oversees comp and HCM; Nominating oversees independence and conflicts .

Fixed Compensation

ComponentAmountTerms
Executive Chair cash$200,000One-time cash amount paid upon appointment effective Oct 1, 2024
Annual RSU grant$227,625Vests in full on 1-year anniversary of 5/16/2024 grant
RSUs in lieu of retainers$40,390Directors elected RSUs instead of cash retainers (quarterly grants across 2024)
Option award$760,371 fair value190,000 shares; vests 1/12 monthly from Oct 1, 2024, subject to continuous service

Non-employee director program provides cash retainers for board/committee roles and an annual RSU (~$181,300) that vests after one year; in 2024 all eligible directors elected to receive retainers in RSUs, enhancing alignment .

Performance Compensation

Directors do not receive performance-based cash or PSUs; Ms. Siminoff’s 2024 equity was time-based RSUs and a time-based option . For context on company performance-linked structures (used for executives, not directors):

MetricVesting Percentages/ThresholdsNotes
Adjusted EBITDA RSUsThreshold 0%; Target 100%; Max 200%Annual tranches over 2024–2026; one-third vests per year based on goals
Revenue RSUsThreshold 0%; Target 100%; Max 200%Annual tranches over 2024–2026; one-third vests per year based on goals
TSR RSUs (Russell 2000 relative)<25th: 0%; 25th: 50%; 50th: 100%; 75th: 150%; ≥90th: 200%Capped at 100% if absolute TSR is negative

Other Directorships & Interlocks

EntityPotential Interlock/ConsiderationDisclosure
Verifone (payments)Payments ecosystem exposure adjacent to BigCommerce payments revenue share modelNo related-party transactions >$120,000 disclosed for 2024 other than compensation
Take-Two/Follett/HooverDiverse industry/academic oversightNo related-party transactions >$120,000 disclosed for 2024 other than compensation

Expertise & Qualifications

  • Strategic/technology/media leadership; founding executive at Yahoo!
  • Board governance across public, private, and academic institutions
  • Education: A.B. Economics (Princeton), M.B.A. (Stanford GSB)

Equity Ownership

CategoryShares% of OutstandingNotes
Total beneficial ownership442,152<1%As of March 25, 2025
Indirect ownership253,333Via The D & E Living Trust
Unvested stock awards (FY-end)28,777Unvested RSUs held at Dec 31, 2024
Option awards outstanding190,000Executive Chair grant; vests monthly from Oct 1, 2024

Policy alignment:

  • Hedging and pledging prohibited for directors/officers/employees; no margin accounts permitted .
  • Clawback policy compliant with SEC/Nasdaq requires recoupment of excess incentive-based compensation upon restatement .

Insider Trades

We attempted to retrieve Form 4 insider transactions for “Siminoff” at BIGC (2024-01-01 to 2025-11-19) using the insider-trades skill, but encountered an authorization error (HTTP 401). Accordingly, recent insider transaction details are not available in this report. Attempt details: python /public/skills/insider-trades/scripts/fetch_insider_trades.py --ticker BIGC --from 2024-01-01 --to 2025-11-19 --person "Siminoff" [Tool error].

Governance Assessment

  • Independence and role change: Transition from independent director to Executive Chair (employee) reduces the count of independent directors to five of seven; mitigated by a designated Lead Independent Director with agenda control and liaison duties .
  • Committee independence maintained: All three key committees (Audit, Compensation, Nominating & Governance) remain fully independent; Siminoff holds no committee seats, preserving committee objectivity .
  • Attendance/engagement: Board activity was high (14 meetings) with strong attendance; directors attended the annual meeting, supporting engagement .
  • Compensation alignment: As Executive Chair, mix includes cash ($200k) and significant equity (RSUs and a monthly-vesting option), creating alignment while avoiding performance-linked director pay that could impair independence .
  • Consultant conflicts managed: Aon-Radford advises on compensation; while an Aon affiliate provided insurance brokerage services (~$264k), the compensation committee evaluated and affirmed consultant independence, reducing conflict risk .
  • Policies reduce red flags: No perquisite gross-ups; hedging/pledging prohibited; clawback in place; no related-party transactions >$120k disclosed beyond compensation .

Key investor signal: The Executive Chair structure may enhance strategic focus and board leadership but reduces strict independence at the chair level. Presence of a strong Lead Independent Director and independent committees helps preserve oversight quality .