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Paul Clancy

Chairperson of the Board at Sionna Therapeutics
Board

About Paul Clancy

Paul Clancy (age 63) is the independent Chair of Sionna Therapeutics’ board (Class III term through 2027), serving since June 2022. He is a seasoned biopharma CFO (Biogen EVP/CFO 2007–2017; Alexion EVP/CFO 2017–2019, then EVP/Senior Advisor 2019–2020) and an academic executive fellow/lecturer at Harvard Business School and Cornell University, respectively . His credentials include a B.S. in finance from Babson College and an M.B.A. from Columbia University . Sionna classifies him as an independent director under Nasdaq/SEC rules and an “audit committee financial expert” .

Past Roles

OrganizationRoleTenureCommittees/Impact
Biogen, Inc.EVP & CFOAug 2007 – Jun 2017Led finance through multi-franchise scale-up
Alexion Pharmaceuticals, Inc.EVP & CFO; EVP & Senior AdvisorJul 2017 – Oct 2019; Nov 2019 – Jul 2020Strategic finance and transitional senior advisory

External Roles

OrganizationRoleTenureNotes
Incyte Corporation (NASDAQ: INCY)DirectorSince 2015Current public board
Xilio Therapeutics, Inc. (NASDAQ: XLO)DirectorSince Jul 2020Current public board
Exact Sciences Corporation (NASDAQ: EXAS)DirectorSince Mar 2021Current public board
Agios Pharmaceuticals, Inc. (NASDAQ: AGIO)Director (former)Sep 2013 – Jun 2023Prior public board

Board Governance

  • Roles: Independent Chair of the Board; Chair, Nominating & Corporate Governance Committee; Member, Audit Committee; Audit Committee Financial Expert .
  • Independence: Board determined all non-employee directors (including Clancy) are independent; CEO is not independent .
  • Attendance: The full board met 7 times in 2024; all directors attended/participated in ≥75% of board and applicable committee meetings .
  • Structure: Separate Chair and CEO roles to enhance oversight; committee charters posted on investor website .
  • Policies: Insider trading policy prohibits derivative transactions and economic-equivalent derivatives; compensation clawback policy adopted per SEC/Nasdaq .

Fixed Compensation

ComponentFY 2024FY 2025 (Post-IPO Policy/Clancy Terms)
Board Chair Cash Retainer$50,000 $70,000 per year (chair of board; payable quarterly)
Nominating & Corporate Governance Chair Retainer$4,500 per year (payable quarterly)
Audit Committee Member Retainer$8,000 per year (policy schedule)
Director Equity Grant PolicyN/A in 2024 tableInitial option: 39,919 shares; Annual option: 19,959 shares (general non-employee director policy)

Notes:

  • Non-employee director compensation policy effective Feb 6, 2025 sets standard retainers and option grant structure; specific disclosure for Clancy’s chair roles provided in his agreement termination/transition narrative .

Performance Compensation

Grant MetricMar 2022Mar 2024
Option Shares Granted119,772 shares 65,713 shares
Vesting Schedule16 equal quarterly installments over 4 years from Jun 6, 2022 48 equal monthly installments over 4 years from Mar 4, 2024
2024 Option Grant Date Fair Value (as reported)$294,287 (FASB ASC 718)
Expiration10-year term typical under plan; sale-event acceleration applies per plan references for options

No director performance metrics (e.g., TSR/EBITDA hurdles) are disclosed for non-employee directors; equity is time-based options under director policy .

Other Directorships & Interlocks

  • Public boards: Incyte, Xilio, Exact Sciences; prior Agios .
  • Investor affiliations: Several Sionna directors affiliate with >5% shareholders (RA Capital, TPG Growth, Atlas, OrbiMed), but Clancy’s biography shows no affiliation with these investor entities; board independence for committees maintained per Nasdaq/SEC rules .
  • Related-party transactions: Proxy states no related-party transactions >$120,000 since Jan 1, 2023 other than described compensation arrangements; no specific business transactions involving Clancy disclosed .

Expertise & Qualifications

  • Financial leadership: Long-tenured CFO across large-cap biopharma; recognized audit committee financial expertise .
  • Industry depth: Multi-therapeutic franchise exposure (Biogen, Alexion) and academic engagement (Harvard, Cornell) .
  • Governance skills: Chairing nominating/governance; service on audit; charter-driven oversight processes .

Equity Ownership

Ownership DetailValue
Beneficial Ownership (as of Apr 15, 2025)110,364 shares via options exercisable within 60 days; <1% of shares outstanding
Outstanding Options (Dec 31, 2024)185,485 shares in aggregate
Estimated Unexercisable Options (derived)75,121 shares (185,485 outstanding minus 110,364 exercisable within 60 days )

Policies and alignment:

  • Insider trading policy prohibits derivative transactions; margin/pledging risks are highlighted; no pledging disclosures for Clancy provided .
  • Director stock ownership guidelines are not disclosed in the proxy; equity alignment primarily via stock options under the director policy .

Insider Trades (Section 16 filings)

FilingDateSummary
Form 3 – Initial Statement of Beneficial OwnershipFeb 6, 2025Filed by Paul J. Clancy upon IPO/listing; includes power of attorney details
Form 4 – Statement of Changes in Beneficial OwnershipJun 12–16, 2025Filed by Paul J. Clancy; transaction under a plan noted; detailed amounts not summarized in proxy

Governance Assessment

  • Strengths: Independent Chair structure; Clancy’s finance expertise and audit committee financial expert designation bolster oversight of reporting, controls, and risk; full-board and committee independence with clearly defined charters; strong attendance; clawback policy in place .
  • Compensation alignment: Director pay relies on cash retainers plus time-based options; 2024 compensation mix for Clancy was $50,000 cash and $294,287 option fair value; post-IPO retainers standardized under policy; no RSUs/PSUs or performance-linked metrics disclosed for directors, reducing complexity and potential metric gaming but also limiting explicit performance linkage .
  • Conflicts/related-party: No Clancy-specific related-party transactions disclosed; committee independence affirmed; board includes investor-affiliated directors representing significant holders—oversight mitigated via independence standards and committee composition .
  • Attendance/engagement: ≥75% participation threshold met; directors expected to attend annual meetings; communication channels and whistleblower procedures defined .

RED FLAGS (none directly tied to Clancy in disclosures): The proxy highlights large investor-affiliated representation on the board; continued monitoring of independence in compensation and nomination decisions is prudent, though Clancy chairs nom/gov and is independent . Hedging is prohibited; pledging risk is noted in policy narrative but not expressly prohibited—investors may seek clarity on pledging bans and director ownership guidelines not disclosed .

Citations: ; Internet filings: Form 3 and Form 4 .