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Andrew Oxtoby

Andrew Oxtoby

President and Chief Executive Officer at Kalaris Therapeutics
CEO
Executive
Board

About Andrew Oxtoby

Andrew Oxtoby (age 51) is President & CEO of Kalaris Therapeutics and a Class II director, roles he has held since the March 18, 2025 merger closing; he previously served as CEO of Legacy Kalaris since March 2024 and brings senior commercial and operating experience from Aimmune, Chinook Therapeutics and Eli Lilly. He holds a B.S. in Mechanical Engineering (Purdue) and an MBA (Harvard) . Under his tenure, Kalaris advanced TH103 through an ongoing Phase 1a (initial data targeted by year-end 2025) and initiated a Phase 1b/2 dose-finding study, with cash, cash equivalents and short-term investments of $77.0M at 9/30/25 and runway into 2027; the company remains pre-revenue with net losses typical of a clinical-stage biotech .

Past Roles

OrganizationRoleYearsStrategic impact
Kalaris Tx (Legacy Kalaris)President & CEO, Director2024–Mar 2025Led TH103 program into clinical; guided merger into publicco platform .
Chinook Therapeutics (acquired by Novartis)Chief Commercial OfficerFeb–Sep 2023Prepared commercial strategy prior to acquisition by Novartis .
Aimmune Therapeutics (acquired by Nestlé Health Science)CEO; prior CCOCEO Oct 2020–Dec 2022; CCO Jan 2019–Sep 2020Led post-acquisition operating integration and commercialization efforts .
Eli LillyVarious leadership roles incl. VP U.S. Connected Care & Insulins2002–2018 (VP role May–Dec 2018)Broad commercial leadership across insulin and connected care businesses .

External Roles

OrganizationRoleYearsNotes
None disclosedNo current public-company directorships disclosed in proxy .

Fixed Compensation

YearBase salary ($)Target bonus (%)Actual bonus ($)
2025 (post-merger)569,10055%n/a (performance period in progress) .
2024 (Legacy Kalaris; prorated)394,160n/d176,856 (performance-based) .

Performance Compensation

  • Annual bonus framework
    • 2025 CEO target bonus set at 55% of base; specific metrics/weighting not disclosed .
  • Equity awards and vesting
    • Legacy Kalaris stock options (assumed by KLRS at merger): 2,364,143 options granted May 28, 2024 at $0.17 exercise price; vesting 25% on first anniversary, then monthly over 36 months (1/48th monthly) subject to service .
    • Option grant value recorded in 2024: $1,388,585 (FASB ASC 718 fair value) .
InstrumentGrant date# AwardsStrikeVesting scheduleFair value ($)
Stock options (Legacy Kalaris; assumed by KLRS)May 28, 20242,364,1430.1725% at 1-year; then monthly (1/48th)1,388,585 (2024 option awards) .

Notes:

  • 2025 equity grant details at KLRS were not disclosed in the proxy; time-based options outstanding continue vesting post-merger per plan assumptions .

Equity Ownership & Alignment

ItemDetail
Beneficial ownership168,800 shares underlying options exercisable within 60 days of June 25, 2025; <1% of shares outstanding (fn 2).
Vested vs unvestedAs of 12/31/24, Oxtoby’s May 2024 option grant was unexercisable; first 25% cliff vest occurred on the one-year anniversary (May 2025), then monthly thereafter per 1/48th schedule .
Ownership guidelinesNo executive stock ownership guidelines disclosed .
Hedging/pledgingCompany policy prohibits derivative transactions and pledging of company stock by directors and executive officers .
ClawbackIncentive compensation recoupment policy adopted Oct 26, 2023 (SEC/Nasdaq compliant) .

Potential insider selling pressure indicators:

  • The May 2024 option grant has ongoing monthly vesting following the May 2025 cliff; combined with standard trading blackout windows, this can create periodic liquidity windows for option exercises/sales. No Form 4 sales are cited here; analysis based solely on disclosed vesting cadence .

Employment Terms

ProvisionTerms for CEO (Oxtoby)
Employment agreement dateApril 10, 2025 .
Base/bonus$569,100 base; 55% target bonus .
Non‑CIC termination (without cause / for good reason)12 months’ base salary continuity; up to 12 months company-paid COBRA, subject to release and restrictive covenants .
CIC double-trigger windowIf termination without cause/for good reason within 3 months prior to or 12 months after a change in control: 18 months’ base salary; lump-sum 150% of target bonus; up to 18 months COBRA; full acceleration of time-based unvested equity .
At‑will; restrictive covenantsAgreement references compliance with “restrictive covenant agreements”; employment otherwise at-will (no fixed term disclosed) .
ClawbackCompany-wide policy applies (see above) .
Tax gross‑upsNo tax gross‑ups disclosed .

Board Governance

AttributeDetail
Board seatClass II director; nominated for election at 2025 annual meeting; term to 2028 if elected .
CommitteesNot listed as a member; Audit chaired by Leone Patterson; Compensation chaired by Michael Dybbs; Nominating/Governance chaired by Srinivas Akkaraju .
Leadership structureChair (David Hallal) and CEO roles are separated .
IndependenceCompany determined five directors independent; CEO (Oxtoby) not independent by definition .
Controlled company statusSamsara BioCapital L.P. holds majority voting power; KLRS relies on Nasdaq “controlled company” exemptions (e.g., compensation committee not entirely independent; nominations by a committee not entirely independent) .
AttendanceDirectors in office during 2024 attended ≥75% of board/committee meetings .

Board service implications:

  • Separation of Chair/CEO mitigates concentration of authority, but controlled-company status and a not-fully independent compensation committee elevate governance and pay-setting risk. Dual role (CEO + director) is standard; not holding the chair reduces independence concerns relative to CEO/Chair combos .

Performance & Track Record

  • Strategic execution: Completed AlloVir merger to form KLRS and re-listed under new ticker; advanced TH103 with Phase 1a initial data targeted by year-end 2025; initiated Phase 1b/2 dose-finding trial; selected KBI Biopharma as CDMO; hired CFO; opened NJ headquarters .
  • Financial posture: Cash, cash equivalents and short-term investments of $77.0M at 9/30/25; company guides runway into 2027; remains pre-revenue and loss-making as a clinical-stage biotech .
  • Risk factors: Material weaknesses in internal control over financial reporting identified; significant dependence on TH103; need for additional capital over time .

Director Compensation (context)

  • Non-employee director policy (post-merger): $40,000 annual board retainer (Chair additional $110,000); committee retainers; initial option grant 18,000 shares vesting monthly over three years (accelerates on CoC); annual 9,000-share option from 2026 meeting. As CEO, Oxtoby would not receive non-employee director compensation .

Related Party & Alignment Considerations

  • Majority owner: Samsara BioCapital L.P. beneficially owns 61.21% of common stock; Akkaraju (Samsara GP) and Dybbs (Samsara partner) serve on the board; controlled-company structure in place .
  • Royalty obligation to Samsara: KLRS recorded a $32.1M long-term royalty obligation to Samsara (low single-digit tiered royalty on net sales related to UCSD-licensed technology) in exchange for repurchasing founder shares; introduces a related-party economic claim on future product sales .

Investment Implications

  • Pay-for-performance alignment: CEO’s equity is primarily in options with multi-year vesting; 2025 cash pay (base + 55% target bonus) is moderate for pre-revenue biotech; bonus metrics not disclosed, reducing transparency. Double-trigger CIC package (18 months base + 150% target + equity acceleration) is competitive but not excessive, balancing retention and change-of-control incentives .
  • Vesting/supply overhang: Large May 2024 option grant (25% cliff vested around May 2025; monthly thereafter) can create periodic insider liquidity windows; monitor Form 4s around post-earning blackout expiries for potential selling pressure signals .
  • Governance risk: Controlled-company exemptions and related-party royalty obligations elevate governance/related-party risk; compensation committee not entirely independent may affect pay rigor; however, separation of Chair/CEO and a formal clawback policy partially mitigates risk .
  • Execution focus and catalysts: Near-term readout from Phase 1a by year-end 2025 and ongoing Phase 1b/2 enrollment are key stock drivers; cash runway into 2027 supports execution absent immediate financing; material weaknesses and concentration risk in a single asset are notable downside factors .