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Gregory Summe

Director at AvantorAvantor
Board

About Gregory Summe

Gregory Summe (age 68) has served on Avantor’s Board since May 2020; he is Chair of the Nominating & Governance Committee and a member of the Compensation & Human Resources Committee . He is Managing Partner of Glen Capital Partners (founded 2014) and Senior Advisor to Star Mountain Capital; previously Managing Director and Vice Chairman of Global Buyout at The Carlyle Group, Senior Advisor to Goldman Sachs Capital Partners, and Chairman/CEO of PerkinElmer for 11 years; earlier roles include president posts at AlliedSignal (Honeywell) and partner at McKinsey & Co. . He holds an MBA (Wharton), M.S. in Electrical Engineering (University of Cincinnati), and B.S. in Electrical Engineering (University of Kentucky), and is in the University of Kentucky Hall of Distinction . The Board has affirmatively determined he is independent under NYSE standards .

Past Roles

OrganizationRoleTenureCommittees/Impact
PerkinElmerChairman & Chief Executive Officer11 yearsLed life sciences/applied materials business; extensive CEO experience
The Carlyle GroupManaging Director; Vice Chairman, Global BuyoutNot disclosedPrivate equity leadership; M&A oversight
Goldman Sachs Capital PartnersSenior AdvisorNot disclosedStrategic investment advisory
AlliedSignal (Honeywell)President, General Aviation Avionics; President, Aerospace Engines Group; President, Automotive Products GroupNot disclosedOperating leadership across multiple divisions
McKinsey & Co.PartnerNot disclosedStrategy/operations expertise

External Roles

OrganizationRoleTenureNotes/Interlocks
NXP Semiconductors N.V.DirectorCurrentPublic company directorship
Wheels Up Experience, Inc.DirectorCurrentPublic company directorship
GRAIL, Inc.Chair of the BoardCurrentBoard reviewed overall spending with GRAIL; no related person had a material interest in 2024 transactions
State Street CorporationDirector2001 to May 2025Prior board; tenure specified
Virgin Orbit Holdings USADirector2021–2023Prior board
NextGen Acquisition Corp I & IICo‑founder2020–2021SPACs; prior roles
Glen Capital PartnersManaging PartnerSince 2014Investment fund founder
Star Mountain CapitalSenior AdvisorCurrentAdvisory role

Board Governance

  • Committee assignments: Chair, Nominating & Governance Committee; Member, Compensation & Human Resources Committee .
  • Independence: Board determined Summe is independent under NYSE and company guidelines (including committee independence) .
  • Attendance: The Board met five times in 2024; each director attended at least 75% of aggregate Board/committee meetings .
  • Executive sessions: Non‑management directors meet in executive session at most Board meetings .
  • Board composition: 10 members; 9 independent; separate Chairman and CEO roles; majority voting; proxy access; special meeting threshold 20% .
  • N&G scope: Oversees board organization, independence, succession and effectiveness, and sustainability strategy/reporting .

Fixed Compensation

Component (FY2024 unless noted)AmountNotes
Annual cash retainer (standard)$95,000Standard non‑employee director cash retainer
Committee chair cash retainer (N&G)$15,000Chair fee for Nominating & Governance Committee
Committee member cash retainer (Comp & HR)$10,000Member fee for Compensation & Human Resources
Annual equity award (RSUs; grant date fair value)$210,000RSUs vest in full on first anniversary of Vesting Start Date; COC accelerates vesting if in service at COC
Gregory Summe – Cash earned (2024)$120,000Sum of base + chair + member fees
Gregory Summe – Equity grant FV (2024)$209,975RSUs under 2019 Equity Incentive Plan (Topic 718)
Gregory Summe – Total (2024)$329,975Cash + equity
Unvested RSUs at 12/31/20248,477As of year‑end
Deferred compensation optionAvailableDirectors may elect to defer equity awards; distributions after 5/10 years or upon board service termination
Ownership guidelines5x cash retainerCompliance: all non‑employee directors in compliance or not yet past 5 years as of 12/31/2024

Performance Compensation

  • Directors do not have performance‑based cash incentives; compensation consists of cash retainers and time‑based RSUs .
  • Change‑of‑control treatment for director RSUs: all unvested RSUs vest upon change in control if the director is in service (single‑trigger acceleration) .

Other Directorships & Interlocks

RelationshipExposure2024 Review Outcome
GRAIL, Inc. (Summe is Chair)Potential customer/supplier relationship to AvantorBoard reviewed overall spending; no related person had a direct/indirect material interest in 2024 transactions
Tessera Therapeutics (CEO is AVTR director)Potential relationshipBoard reviewed overall spending; no related person material interest
UCB (Chair is AVTR Chairman)Potential relationshipBoard reviewed overall spending; no related person material interest
UC San Diego (AVTR director is VC Health Sciences)Potential relationshipBoard reviewed overall spending; no related person material interest

Expertise & Qualifications

  • Extensive leadership in life sciences/applied materials; prior CEO experience; deep M&A/transactional and operating expertise; independence affirmed .
  • Board skills span finance, international business, strategy, and operations, aligning with Avantor’s oversight needs .

Equity Ownership

ItemAmountNotes
Beneficial ownership (shares)22,726As of March 3, 2025; less than 1%
Unvested RSUs8,477As of December 31, 2024
Shares outstanding681,397,790As of March 3, 2025
Ownership as % of outstanding~0.0033%Computed from 22,726 / 681,397,790
Pledging/hedging policyProhibited (with limited pre‑clearance for pledging)Insider Trading Policy prohibits hedging, short sales, margin accounts; pledging prohibited absent pre‑clearance
Director stock ownership guidelines5x cash retainerCompliance for directors as of 12/31/2024 noted above

Governance Assessment

  • Strengths

    • Independent director with significant CEO/PE background; chairs Nominating & Governance, which oversees board effectiveness and sustainability .
    • Strong governance architecture: majority voting, proxy access, robust insider trading restrictions; regular executive sessions and annual evaluations .
    • Compensation oversight supported by independent consultant (FW Cook); robust clawback policies beyond Dodd‑Frank .
    • Shareholder alignment signals: 93% say‑on‑pay approval in 2024 .
  • Watch items / potential red flags

    • Interlocks: Chairs GRAIL and sits on multiple boards; Board reviewed spending with GRAIL and found no material related‑party interest for 2024, but ongoing monitoring advisable given potential interactions with Avantor’s customers/suppliers .
    • Director equity single‑trigger vesting upon change‑of‑control may be viewed as less shareholder‑friendly than double‑trigger constructs used for executive awards; consider alignment review by N&G .
    • Board service load: Company guidelines expect no director to serve on more than five public company boards; ensure continued compliance given Summe’s multiple roles .

Overall, Summe’s independence, seasoned operating/M&A background, and leadership of the Nominating & Governance Committee support board effectiveness; interlocks and COC equity vesting terms merit continuous oversight to preserve investor confidence .