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Chrystal Louis

Chief Medical Officer at TScan Therapeutics
Executive

About Chrystal Louis

Chrystal Louis, M.D., M.P.H., is Chief Medical Officer of TScan Therapeutics (TCRX) since April 2024; age 49 as of April 30, 2025 . She earned an M.D. and an M.P.H. from Tulane University and B.A. in Political Science and B.S. in Chemistry from Southwestern University, with prior academic appointment at Baylor College of Medicine focused on early CAR‑T development for solid tumors . Company performance context: TScan revenue fell from $21.0M in FY 2023 to $2.8M in FY 2024, while EBITDA losses widened; use this backdrop when assessing pay‑for‑performance alignment [FY 2022–2024 table below]. Revenues: $13.5M (FY 2022), $21.0M (FY 2023), $2.8M (FY 2024) ; EBITDA: −$61.5M*, −$88.1M*, −$130.7M* (FY 2022–2024). Values retrieved from S&P Global.

Past Roles

OrganizationRoleYearsStrategic Impact
Zentalis PharmaceuticalsSVP, Hematology Clinical DevelopmentNov 2022–Mar 2024Led hematology clinical development
CRISPR TherapeuticsVP, Head of Medical AffairsJul 2020–Nov 2022Built and led medical affairs across oncology programs
Celgene (acquired by BMS)Executive Director, U.S. Medical Affairs (Myeloid/Oncology/Pancreatic/GI)Oct 2016–Jul 2020U.S. Medical Affairs leadership across multiple oncology disease areas
Merrimack PharmaceuticalsClinical development & project leadership strategySep 2014–Oct 2016Portfolio/project leadership in clinical development
Baylor College of Medicine / Texas Children’sAssistant Professor (Oncology/Hematology)Pre‑industry (dates not specified)Early CAR‑T development for solid tumor malignancies

External Roles

No public company board or committee roles for Dr. Louis are disclosed in the proxy; the biography lists prior industry and academic roles but no current external directorships .

Fixed Compensation

Metric (FY 2024 unless stated)Value
Annual Base Salary$495,000
Target Bonus % of Base Salary40%
Actual Non‑Equity Incentive Paid (2024)$162,000
Sign‑on Bonus$45,000 (repayable if departure within 12 months)
PerquisitesNone beyond broad employee programs (health/401k match); 401k match 100% up to 4% salary

Performance Compensation

MetricWeightingTargetActualPayoutVesting/Conditions
Corporate & individual goals related to product development and advancement of pre‑clinical studiesNot disclosed40% of base salary $162,000 cash bonus (2024) Not disclosedMust be employed through payment date

Equity Ownership & Alignment

ItemDetail
Total beneficial ownership (as of Apr 30, 2025)110,833 shares via options exercisable within 60 days; <1% of outstanding
Pledging/HedgingCompany policy addresses trading, pledging and hedging; insider trading policy filed as exhibit to 2024 Form 10‑K. No pledging by Dr. Louis disclosed in proxy
ClawbackCompensation recovery policy adopted Sep 21, 2023 (effective Oct 2, 2023) for incentive pay tied to financial reporting measures

Equity Awards Outstanding (year‑end and grant details)

GrantVesting CommencementUnexercisable (12/31/2024)Exercise PriceExpirationVesting Schedule
Stock Options (New Hire)Apr 22, 2024380,000$8.62May 1, 203425% on first anniversary (95,000 shares), then 1/48 monthly (~7,917 shares/month) over next 36 months

As of April 30, 2025, options exercisable within 60 days total 110,833 (25% at anniversary plus two monthly tranches), consistent with vesting mechanics .

Employment Terms

  • Start date and title: Joined as Chief Medical Officer effective April 22, 2024 (agreement effective April 4, 2024) .
  • Severance (without cause/for good reason): 12 months base salary continuation plus the full prior fiscal year target bonus if unpaid, and up to 12 months COBRA premiums; contingent on a general release and compliance (ceases on material breach of proprietary information/inventions agreement) .
  • Change‑in‑control (double trigger): If separation occurs in the 3 months prior or within 12 months at/after a change‑in‑control: lump sum equal to 1× base salary + 1× annual target bonus, pro‑rata target bonus for days worked in the year, COBRA up to 12 months, and accelerated vesting of all unvested equity awards .
  • Sign‑on bonus: $45,000; repayable if departure within 12 months of payment .
  • Legal/disciplinary disclosures: No material legal proceedings disclosed for executive officers .

Company Performance Context (for pay‑for‑performance alignment)

MetricFY 2022FY 2023FY 2024
Revenues ($USD)$13,535,000 $21,049,000 $2,816,000
EBITDA ($USD)−$61,499,000*−$88,097,000*−$130,713,000*

*Values retrieved from S&P Global.

Investment Implications

  • Alignment: Compensation mix includes meaningful equity via options with standard four‑year vesting; change‑in‑control provisions are double‑trigger with full acceleration, typical for retention but can create event‑driven payout sensitivity .
  • Retention risk and selling pressure: Monthly vesting after April 22, 2025 introduces ongoing incremental vesting (≈7,917 shares/month) that can contribute to periodic Form 4 activity; no pledging or hedging is disclosed, and employment‑through‑payment requirements apply to cash incentives .
  • Pay‑for‑performance backdrop: Revenues declined sharply in FY 2024 and EBITDA losses widened; 2024 cash bonus ($162,000) was awarded against corporate/individual R&D milestones rather than financial metrics, so investors should monitor pipeline progress milestones as the primary performance levers for her incentive payouts (Revenue/EBITDA table above).
  • Contract economics: Standard 1× salary+bonus severance and double‑trigger acceleration balance retention with shareholder protections; absence of tax gross‑ups, limited perquisites, and presence of a clawback policy are positive governance signals .