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Sean O’Sullivan

Director at STT
Board

About Sean P. O’Sullivan

Sean P. O’Sullivan (age 69) has served on State Street’s Board since 2017 and is an independent director. He brings deep operational and technology leadership from HSBC, including roles as Group Managing Director and Group COO (2011–2014) and Executive Director and Chief Technology & Services Officer at HSBC Bank plc (2007–2010). He holds a B.A. from Western University and holds citizenship in Canada, Ireland, and the United Kingdom .

Past Roles

OrganizationRoleTenureCommittees/Impact
HSBC Holdings plcGroup Managing Director and Group Chief Operating Officer2011–2014Led global operations and technology transformation
HSBC Bank plcExecutive Director and Chief Technology & Services Officer2007–2010Technology, operations, and organizational restructuring leadership
HSBC (various senior management positions)Senior management1980–2007Broad operational and technology roles across the bank

External Roles

OrganizationRoleTenureNotes
University of British ColumbiaInformation Technology Advisory Committee MemberNot disclosedTechnology governance advisory
York University FoundationFormer TrusteeNot disclosedNon-profit governance
Public company directorshipsNoneNo other public boards; reduces interlock risk

Board Governance

  • Committee assignments and chair roles:
    • Technology and Operations Committee — Chair; 8 meetings in 2024
    • Risk Committee — Member; 9 meetings in 2024
    • Executive Committee — Member; no meetings in 2024
  • Independence: Board determined all directors except the CEO are independent under NYSE standards; O’Sullivan is listed as independent .
  • Attendance: The Board held 7 meetings in 2024; each director attended at least 75% of the total meetings of the Board and committees on which they served. All directors attended the 2024 annual meeting .
  • Independent director executive sessions occur at every regularly scheduled Board meeting, led by the Lead Director .
  • Director compensation oversight: The Nominating and Corporate Governance Committee reviews director compensation annually, referencing the executive Compensation Peer Group and using Meridian Compensation Partners; no changes to elements of director compensation for the 2024–2025 Board year .

Fixed Compensation

ComponentAmount ($)VehicleNotes
Annual cash retainer100,000Cash or sharesApplies to all non-management directors
Committee chair retainer (Technology & Operations)35,000Cash or sharesO’Sullivan served as chair
Committee member retainer (Risk)20,000Cash or sharesPaid to members (excl. Chair and Lead Director)
Meeting fees1,500 per meeting after the tenthCashTriggered only after 10 Board meetings; Board held 7 in 2024
Fees earned (O’Sullivan, 2024)155,000CashReported in director compensation table

Performance Compensation

ComponentAward detailVestingGrant Date / Valuation
Annual equity award (directors)2,514 shares of STT common stockVests immediately; no unvested director awards outstanding at 12/31/2024Granted May 15, 2024 at $77.57; fair value $195,011
Performance conditions tied to director equityNone disclosed for directorsDirector stock awards are not performance-based

Director Compensation (2024 actuals)

NameFees Earned ($)Stock Awards ($)All Other Compensation ($)Total ($)
Sean P. O’Sullivan155,000 195,011 — (under $10,000) 350,011

Notes:

  • Perquisites for O’Sullivan did not exceed $10,000, therefore not individually reported .
  • Directors may elect to receive retainers in cash or shares and can defer 0% or 100% of retainers, equity awards, and meeting fees under the Deferred Compensation Plan for Directors .

Other Directorships & Interlocks

CategoryDetail
Public company boardsNone
Potential interlocks with competitors/suppliers/customersNone disclosed
Committee roles at other companiesNot applicable (no public boards)

Expertise & Qualifications

  • Key skills: Finance & Accounting; Operational Transformation; Cyber, Tech & Data; Risk Management .
  • Education: Western University (B.A.) .
  • Prior operating leadership at HSBC supports oversight of State Street’s technology risk, cyber, data management, and operational resiliency .

Equity Ownership

ItemValue
Beneficial ownership (shares)23,829
% of shares outstandingLess than 1% (each director individually under 1%)
Director ownership guidelines8x annual retainer ($800,000 target)
Compliance statusAs of March 3, 2025, all non-management directors other than Ms. Halliday exceeded the full target; O’Sullivan exceeded target
Vested vs unvested sharesDirector stock awards vest immediately; no unvested director awards at 12/31/2024
Hedging/pledging policyProhibits short selling, hedging, options trading, pledging, or speculative trading by directors

Insider Trades

ItemDetail
Section 16(a) compliance (2024)Company believes all directors complied with Section 16(a) reporting requirements in 2024; untimely filings noted for Mr. Meaney, not O’Sullivan

Related-Party Transactions and Conflicts

  • Review process: Related-person transactions over $120,000 are reviewed/approved by the Nominating and Corporate Governance Committee per written policy .
  • 2024 disclosure: Apart from a management family relationship (Timby Barron), no other related-person transactions required to be reported; no personal loans to directors .
  • Independence determinations: Board confirmed independence of all directors other than the CEO under NYSE standards and Company guidelines .

Compensation Structure Analysis

  • Mix and alignment: Standard mix of $100,000 retainer plus $195,000 equity keeps director pay tilted toward equity, aligning incentives with shareholder outcomes; committee chair/member retainers compensate for added oversight duties .
  • Stability: No changes to director compensation elements for the 2024–2025 Board year; committee used Meridian Compensation Partners and peer group data to inform decisions without treating peer data as definitive .
  • Shareholder sentiment: Say‑on‑Pay received ~93% support in 2024, indicating broad investor support for compensation governance .

Governance Assessment

  • Strengths:
    • Independent director with deep technology and operations expertise chairs Technology & Operations Committee overseeing cybersecurity, resiliency, and data governance .
    • Serves on Risk Committee, supporting comprehensive risk oversight (credit, market, liquidity, operational, technology) .
    • Exceeds director stock ownership guidelines; hedging/pledging prohibited, supporting alignment .
    • Board‑level attendance threshold met across all directors; independent executive sessions at each regular Board meeting .
    • No related‑party transactions reported involving O’Sullivan; independence affirmed .
  • Watch items:
    • Executive Committee had no meetings in 2024; not a concern itself but underscores primary governance workload is in standing committees .
  • Overall signal: O’Sullivan’s chair role in technology and operations and membership on Risk, combined with equity alignment and independence, support investor confidence in board effectiveness on critical risk and technology oversight .

Best AI for Equity Research

Performance on expert-authored financial analysis tasks

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Claude Sonnet 4.555.3%
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Grok 440.3%
Qwen 3 Max32.7%

Best AI for Equity Research

Performance on expert-authored financial analysis tasks

Fintool-v490%
Claude Sonnet 4.555.3%
o348.3%
GPT 546.9%
Grok 440.3%
Qwen 3 Max32.7%