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Lester B. Knight

Chair of the Board at AonAon
Board

About Lester B. Knight

Independent Non‑Executive Chair of Aon’s Board; age 66; director since 1999; became Chair in August 2008. Founding Partner of RoundTable Healthcare Partners; former Vice Chairman and director of Cardinal Health; former Chairman & CEO of Allegiance Corporation; senior executive roles at Baxter International. Core credentials: financial and investment expertise, healthcare industry leadership, corporate governance and risk oversight; chairs executive sessions of non‑management directors as Board Chair .

Past Roles

OrganizationRoleTenureCommittees/Impact
RoundTable Healthcare PartnersFounding PartnerNot disclosedFinancial/investment expertise; healthcare focus
Cardinal Health, Inc.Vice Chairman; DirectorNot disclosedPublic company board experience
Allegiance CorporationChairman & CEO1996–Feb 1999Led corporate strategy and operations
Baxter International, Inc.Corporate VP (1990); EVP (1992); Director (1995)1981–1996Operational and leadership experience at global healthcare company

External Roles

OrganizationRoleTenure/Status
NorthShore University Health SystemLife DirectorOngoing
Junior Achievement of ChicagoLife DirectorOngoing
Northwestern UniversityLife TrusteeOngoing
Civic Committee of The Commercial Club of ChicagoMemberOngoing

Board Governance

  • Current roles: Non‑Executive Chair; Chair, Executive Committee; Chair, Governance/Nominating Committee; Member, Inclusion & Wellbeing Sub‑Committee .
  • Independence: Board affirms majority independence; Board Chair independent; Knight presides over executive sessions of non‑management directors .
  • Board/committee activity and attendance:
    • Board met six times in 2023; all nominees serving in 2023 attended at least 75% of Board and committee meetings; non‑management directors meet regularly in executive session chaired by Knight .
    • AGM attendance: 11 of 12 directors attended the 2024 AGM (one absence due to pre‑existing conflict) .
Committee2024 Meeting CountNotes
Finance5All members independent under NYSE standards
Governance/Nominating5Reviews director skills/criteria; related‑party transactions; share ownership guidelines
Inclusion & Wellbeing Sub‑Committee4Oversees inclusion and wellbeing strategies

Fixed Compensation

Director compensation program (non‑management directors):

ElementDescription2023 Value2024 Changes
Cash CompensationQuarterly cash retainer$145,000Additional cash retainer of $25,000 for each Board committee chair (other than Audit); $30,000 for Audit Chair; incremental increase in chair retainers
Equity CompensationAnnual grant of fully vested Class A shares; shares = grant date value ÷ closing price$210,000 for each non‑management director; $435,000 for non‑executive Chair+$15,000 for non‑management directors; +$225,000 additional for non‑executive Chair

Director‑specific compensation (Knight):

MetricFY 2023FY 2024
Fees Earned or Paid in Cash ($)170,000 175,000
Stock Awards ($)435,013 449,927
All Other Compensation ($)111,355 129,882
Total ($)716,368 754,809

Notes:

  • “All Other Compensation” typically includes Aon Foundation matching gifts ($10,000 cap) and estimated Ireland tax equalization payments under company policy; historical itemization shows Knight’s 2022 estimated tax equalization at $293,595 plus matching gift $10,000 .

Performance Compensation

Performance Metrics Tied to Director PayFY 2023FY 2024
Metrics/StructuresNone disclosed; director equity grants are fully vested shares (no PSUs/options) None disclosed; director equity grants are fully vested shares (no PSUs/options)

Other Directorships & Interlocks

CategoryDetail
Current public company boardsNone shown for Knight (“—” in director matrix)
Prior public company boardsCardinal Health (former Vice Chairman/director)
Committee interlocksNo Compensation Committee interlocks required to be disclosed for 2024
Related‑party transactionsGovernance/Nominating Committee reviews and approves per policy; no related‑party transactions disclosed for Knight; 2024/2025 disclosures cite none beyond NFP consideration to Admiral Stavridis and a family employment relationship unrelated to Knight

Expertise & Qualifications

  • Financial/investment expertise from private equity leadership; broad healthcare industry operating background; corporate governance and risk oversight experience; strategic transactions and business transformation; effective leadership of independent directors via chairing Governance/Nominating and executive sessions .

Equity Ownership

Ownership DetailAmountPercent of Outstanding
Total beneficial ownership (Class A shares)319,978 0.148% (319,978 ÷ 216,034,583)
Family partnership139,000
Spouse124,604
Trust39,911
Family foundation (Knight and spouse as trustees)19,997
Shares pledged as collateralNone; no director/executive shares pledged
Ownership guidelinesNon‑management directors must hold 5× annual retainer; 5‑year transition; new directors expected to hold 1,000 shares within first year
Hedging/pledging policyDirectors prohibited from hedging, short sales, derivatives; prohibited from holding Aon securities in margin accounts/pledging

Governance Assessment

  • Independent leadership: Knight serves as Non‑Executive Chair; Board explicitly favors independent Chair structure to strengthen oversight and risk governance; Knight sets agendas and presides over independent executive sessions .
  • Committee leadership and oversight: Chairs Executive and Governance/Nominating—both central to emergency authority between Board meetings and board composition/related‑party oversight; committee activity (5 Governance meetings in 2024) indicates engagement .
  • Attendance and engagement: Board met six times in 2023; all nominees met 75%+ attendance; AGM attendance was 11 of 12 in 2024, underscoring overall board engagement .
  • Alignment and ownership: Meaningful personal and family holdings totaling 319,978 shares with no pledging; robust ownership and anti‑hedging policies further align director incentives with shareholders .
  • Compensation structure: Mix skewed toward equity via fully vested share grants; modest year‑over‑year increase in total compensation; absence of performance‑conditioned awards for directors limits pay‑for‑performance signaling but is consistent with market norms for non‑employee directors .
  • Conflicts oversight: Governance/Nominating Committee reviews related‑party transactions; 2024/2025 disclosures report no related‑party transactions involving Knight and no Compensation Committee interlocks .

RED FLAGS

  • None disclosed specific to Knight: no pledged shares; no related‑party transactions; independence affirmed and robust committee oversight .