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Tomas Kiselak

Independent Chairman of the Board at Viridian Therapeutics, Inc.\DE
Board

About Tomas Kiselak

Independent Chairman of the Board at Viridian Therapeutics since June 2021; director since October 2020. Age 38 as of April 25, 2025. Co‑founder and Managing Member at Fairmount Funds; former Managing Director at RA Capital Management. BA in Neuroscience and Economics from Amherst College .

Past Roles

OrganizationRoleTenureCommittees/Impact
Fairmount Funds Management LLCManaging Member, Co‑founderSince April 2016Life sciences investor; multiple board seats across biotech
RA Capital Management, LLCManaging DirectorPrior to Fairmount (date not disclosed)Healthcare/life science investment experience

External Roles

CompanyRoleTenure/DateCommittees/Notes
Apogee Therapeutics (Nasdaq: APGE)DirectorCurrent (date not disclosed)
Spyre Therapeutics (Nasdaq: SYRE)DirectorCurrent
Dianthus Therapeutics (Nasdaq: DNTH)DirectorCurrent
Zenas Biopharma (Nasdaq: ZBIO)DirectorCurrent
Jade Biosciences (private)DirectorCurrent

Board Governance

  • Independence: Board determined all current non‑employee directors, including Kiselak, are independent under Nasdaq rules .
  • Board leadership: Independent Chairman since June 2021; sets agendas, presides over independent director sessions; separation of Chair and CEO intended to strengthen oversight .
  • Committees and roles:
    • Compensation Committee member; committee met 4 times in 2024; independent composition .
    • Nominating & Corporate Governance Committee member; met 2 times in 2024; independent; responsible for director selection and governance principles .
    • Science & Technology Committee Chair; met 5 times in 2024; provides R&D and pipeline oversight .
    • Not on Audit Committee .
  • Attendance: Board met 10 times in 2024; each then‑current director attended at least 75% of aggregate Board and committee meetings; executive sessions of independent directors available at every regular Board meeting .
  • Overboarding controls: Policy limits non‑executive directors to ≤5 public boards; Board confirms all current directors comply .

Fixed Compensation

ElementAmountNotes
2024 Cash Fees (Kiselak)$97,070Earned/paid in cash
2024 Option Awards (Grant‑date FV)$185,307Equity grant accounting value
2024 Total Director Compensation$282,377Cash + option award grant‑date FV
Standard Annual Board Retainer$40,000Non‑employee directors
Additional Chair Retainer$30,000 (2024); $32,500 effective 1/1/2025Paid to Board Chair
Committee Fees (Member/Chair)Audit: $10,000/$20,000; Compensation: $7,500/$15,000; Nominating: $5,000/$10,000; Science: $7,500/$15,000Annual fees per committee assignment

Performance Compensation

Equity Grant TypeQuantumVestingExercise Price BasisNotes
Annual Director Option Grant21,000 optionsVests in full on earlier of 1‑year from grant or next annual meeting (continued service)FMV on grant dateGranted after each Annual Meeting
Initial Director Option Grant (new appointees)42,000 options36 equal monthly installments (continued service)FMV on grant dateApplies to directors appointed/elected in 2024
  • Non‑employee director compensation limit: Aggregate cash + equity value capped at $500,000 per calendar year; $1,000,000 in first year; exceptions only in extraordinary circumstances and recipient may not participate in the decision .

Other Directorships & Interlocks

  • Significant shareholder link: Entities affiliated with Fairmount Funds beneficially own ~16.6% of VRDN; Fairmount also manages vehicles for which Kiselak serves; conversion of preferred shares subject to 19.99% ownership cap .
  • Director option proceeds remitted to Fairmount: Kiselak’s options granted for Board service are held for investment vehicles managed by Fairmount; he must turn over any net cash or stock from options to Fairmount and disclaims beneficial ownership of options and underlying shares .
  • Related‑party transactions:
    • Paragon agreements (antibody discovery, licenses, development): may be related party because Fairmount is a ≥5% VRDN holder, has two VRDN board seats, and is a ≥5% holder of Paragon; transactions described as arm’s‑length and market‑rate .
    • Zenas BioPharma license/manufacturing and China clinical support agreements: may be related party because Fairmount is a ≥5% VRDN holder, has two VRDN board seats, and is a ≥5% Zenas holder with a Zenas board seat; transactions described as arm’s‑length and market‑rate .

Expertise & Qualifications

  • Life sciences investment and governance expertise from Fairmount and RA Capital roles; experience advising biotech companies; qualifies to contribute strategic insight .
  • Scientific and financial background (Neuroscience/Economics BA) .

Equity Ownership

HolderBeneficial Ownership (shares)% of OutstandingComposition/Notes
Tomas Kiselak71,600<1%Consists of options exercisable within 60 days; subject to arrangement to remit proceeds to Fairmount; disclaims beneficial ownership of options and underlying shares
Fairmount‑affiliated entities15,556,68516.60%Common + common underlying preferred stock (subject to 19.99% cap); as per Schedule 13D; shared voting/dispositive power described
  • Anti‑hedging/pledging: Directors subject to robust insider trading policy, prohibiting short sales, derivatives, and hedging without pre‑clearance; pledging requires pre‑clearance; Section 16 insiders prohibited from derivative transactions; policy filed with 2024 10‑K .
  • Section 16 compliance: Company believes all insiders, including directors, timely filed required Forms 3/4/5 during 2024 .

Governance Assessment

  • Strengths:
    • Independent Chair role held by Kiselak; separation from CEO enhances oversight; independent majorities on key committees (Audit, Compensation, Nominating; Kiselak sits on Comp and Nom, chairs Science) .
    • Active committees with defined meeting cadence (Audit 4, Compensation 4, Nominating 2, Science 5 in 2024) supporting board effectiveness .
    • Overboarding limits and compliance reduce distraction risk; formal clawback policy; anti‑hedging/pledging policy; director pay cap curbs excess compensation .
    • Stockholder engagement following low 2024 say‑on‑pay (58% support) led to expanded compensation disclosure; responsiveness to investor feedback .
  • Risks/Red Flags:
    • Fairmount influence: Significant shareholding and two board seats; Kiselak’s and another director’s option economics remitted to Fairmount; presence in related‑party counterparties (Paragon, Zenas) introduces perceived conflicts despite arm’s‑length assertions .
    • Say‑on‑pay approval below typical thresholds (58% in 2024; second consecutive <70%), signaling investor concerns around pay design; while not director pay, it reflects governance sentiment .
  • Mitigants:
    • Board affirms director independence; committee independence; independent chair; related‑party transactions disclosed and characterized as market‑rate and arm’s‑length .
    • Director compensation structure aligned via modest cash retainer and time‑based equity with annual vesting; aggregate annual compensation well below policy caps .

Overall signal: Independent chairmanship and active committee leadership by Kiselak support board effectiveness; however, Fairmount’s ownership and transactional ties warrant continuous monitoring for conflicts, with transparency and recusal practices crucial to sustaining investor confidence .