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Michael Severino

Director at AvantorAvantor
Board

About Michael Severino

Michael Severino, M.D., age 59, has served on Avantor’s Board since April 2020 and is currently Chair of the Compensation & Human Resources Committee and a member of the Science & Technology Committee . He is Chief Executive Officer of Tessera Therapeutics (since June 2022) and a CEO‑Partner at Flagship Pioneering . Dr. Severino holds an M.D. from Johns Hopkins University, completed residency and fellowship at Massachusetts General Hospital and Harvard Medical School, and earned a B.S. in biochemistry from the University of Maryland . The Board has affirmatively determined he is independent under NYSE and company guidelines .

Past Roles

OrganizationRoleTenureCommittees/Impact
AbbVie Inc.Vice Chairman & President; EVP R&D; Chief Scientific OfficerPrior to 2022 (dates not specified)Led pipeline and R&D strategy
Amgen Inc.SVP Global Development; Chief Medical OfficerPrior to AbbVie (dates not specified)Led clinical development across therapeutic areas
Merck & Co., Inc.Senior Director (clinical genomics/molecular profiling/experimental medicine)Prior to Amgen (dates not specified)Led research programs
Field Museum (Chicago)Director2015–2022Non‑profit board service

External Roles

OrganizationRoleStartCommittees/Notes
Tessera TherapeuticsChief Executive OfficerJune 2022Also Tessera Board Director; CEO‑Partner at Flagship
Viatris Inc. (Nasdaq: VTRS)Independent DirectorMay 5, 2025Science & Technology Committee member
Montai Therapeutics, Inc.DirectorBy May 2025Flagship portfolio company directorship
Quotient Therapeutics, Inc.DirectorBy May 2025Flagship portfolio company directorship

Board Governance

  • Committee assignments: Chair, Compensation & Human Resources (CHR); Member, Science & Technology (S&T) .
  • Independence: Board annually reviewed independence; Severino determined independent under NYSE/company standards (including committee membership) .
  • Attendance: Board met five times in 2024; each director attended ≥75% of aggregate Board and committee meetings; same standard achieved in 2023 .
  • Executive sessions: Non‑management directors meet in executive session at most Board meetings .
  • CHR Committee practices: CHR retains independent consultant FW Cook; oversees CEO/NEO pay, succession planning, benefit plans, and director compensation .
  • Shareholder “say‑on‑pay” signal: Support was 93% in 2024 and 87% in 2023, indicating generally positive investor sentiment toward compensation oversight under CHR .
  • Related‑party safeguards: Audit & Finance Committee reviews related‑party transactions; Board reviewed overall spending with Tessera Therapeutics (Severino’s employer) and other director‑linked organizations; no related person had or will have a direct or indirect material interest in 2024 or 2023 .

Fixed Compensation

Component20232024Notes
Annual cash retainer (program terms)$75,000 $95,000 Increased effective Jan 1, 2024
CHR Committee Chair cash retainer (program terms)$15,000 $20,000 Increased effective Jan 1, 2024
Committee member cash retainer (Compensation)$7,500 $10,000 Program terms
Annual equity award (program terms)$200,000 RSUs $210,000 RSUs Time‑based vesting
Severino – fees earned (cash)$90,000 $115,000 Reflects base retainer + CHR Chair fee
Severino – stock awards (grant date fair value)$199,985 $209,975 RSUs under 2019 EIP; Topic 718

Performance Compensation

ElementStructureVestingAmount
Director RSUs (annual)Time‑based RSUs; no performance metrics Vest in full on first anniversary; double‑trigger vesting on change‑in‑control $210,000 grant value in 2024 program terms; Severino award $209,975

Directors do not receive PSUs or option awards as part of the non‑employee director program; equity is time‑based RSUs only .

Other Directorships & Interlocks

Company/InstitutionTypeRole/CommitteePotential Interlock/Exposure
Tessera TherapeuticsPrivate biotechCEO; Board DirectorBoard reviewed spending with Tessera; no related person material interest in 2024/2023
Viatris Inc. (VTRS)Public pharmaIndependent Director; S&T CommitteeExternal board seat; information flow; no Avantor‑disclosed transaction linkage
Montai TherapeuticsPrivateDirectorFlagship company; not disclosed by Avantor as related transaction
Quotient TherapeuticsPrivateDirectorFlagship company; not disclosed by Avantor as related transaction
Field Museum (Chicago)Non‑profitDirector (2015–2022)Civic role

Expertise & Qualifications

  • Deep life‑sciences R&D and corporate strategy experience including senior roles at AbbVie and Amgen; currently biotech CEO .
  • Scientific oversight competencies via Avantor’s S&T Committee and prior clinical development leadership .
  • Medical and scientific training (M.D. Johns Hopkins; MGH/Harvard residency/fellowship; B.S. biochemistry, University of Maryland) .

Equity Ownership

MetricAs of 3/4/2024As of 3/3/2025Notes
Beneficial ownership (shares)25,166 34,974 SEC beneficial ownership definition
Shares outstanding678,889,839 681,397,790 Basis for % ownership
Ownership %~0.0037% (25,166 ÷ 678,889,839) ~0.0051% (34,974 ÷ 681,397,790) Computed from cited values
Unvested director RSUs9,808 (all directors, as of 12/31/2023; Severino held 9,808) 8,477 (Severino as of 12/31/2024) Program grants and year‑end status
Stock ownership guidelines5x base annual cash retainer; compliance within 5 years of serviceAll non‑employee directors in compliance or within window as of 12/31/2024 Policy prohibits hedging, short sales, margin accounts, pledging absent pre‑clearance

Governance Assessment

  • Strengths: Independent director; CHR Chair with use of independent consultant (FW Cook); robust clawback and anti‑hedging/pledging policies; regular executive sessions; strong say‑on‑pay approval (93% in 2024; 87% in 2023) .
  • Engagement: Board met five times; directors ≥75% attendance; structured shareholder engagement described in proxies .
  • Conflicts oversight: Audit & Finance Committee reviews related‑party transactions; Board reviewed overall spending with Tessera and other director‑linked entities; no material related‑party interest disclosed for 2024 or 2023 .
  • Workload/interlocks: Serves as a public company director at Viatris while CEO at Tessera; Avantor policy expects executive officers generally serve on no more than two public boards, which aligns with his disclosed public roles (Avantor + Viatris) .
  • RED FLAGS: None disclosed regarding related‑party transactions, low attendance, option repricing, pledging/hedging, or tax gross‑ups; director equity is time‑based only, with no underwater option repricings reported .

Notes on Director Compensation Program (structure)

  • Cash/equity mix: Annual cash retainer plus annual RSU grant; committee chair/member retainers per committee; RSUs vest in one year; double‑trigger change‑in‑control vesting .
  • Deferred equity: Directors may elect deferral of equity awards (5/10 years or termination of Board service), with dividend equivalents on deferred shares .
  • Director compensation benchmarking: Reviewed regularly; market‑based program; FW Cook engagement .

Board Effectiveness Signals

  • Establishment of Science & Technology Committee in November 2024 enhances oversight of R&D strategies and emerging science/technology; Severino’s participation and CHR leadership support board effectiveness in innovation and human capital .
  • Policies include majority voting in uncontested elections with resignation policy, proxy access, prohibitions on hedging/pledging, and robust shareholder rights .