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Natalie Holles

Chief Executive Officer at Third Harmonic Bio
CEO
Executive
Board

About Natalie Holles

Natalie Holles (age 52) is Chief Executive Officer and a director of Third Harmonic Bio (THRD) since August 2021, with prior senior operating and corporate development roles at Audentes Therapeutics (CEO; President & COO; SVP/COO), Hyperion Therapeutics (SVP, Corporate Development), KAI Pharmaceuticals (VP, Business Development), InterMune, and Genentech; she holds an A.B. in Human Biology (Stanford) and an M.A. in Molecular, Cellular, and Developmental Biology (University of Colorado Boulder, HHMI fellow) . THRD’s board is chaired separately by Mark Iwicki; Holles is not an independent director, and the board has a majority of independent directors . In 2025 the board proposed a Plan of Dissolution; the estimated shareholder distribution was $5.13–$5.42 per share, framing near‑term value realization rather than long‑term operating performance .

Past Roles

OrganizationRoleYearsStrategic impact
Audentes TherapeuticsCEOJan 2020–Mar 2021Led integration/transition post-Astellas transaction and continued gene therapy execution .
Audentes TherapeuticsPresident & COOMay 2018–Jan 2020Operational leadership across development and operations .
Audentes TherapeuticsSVP, COOAug 2015–May 2018Built operations and programs pre/post acquisition interest .
Hyperion TherapeuticsSVP, Corporate DevelopmentJun 2013–May 2015Completed sale to Horizon Pharma; drove BD strategy .
KAI PharmaceuticalsVP, Business DevelopmentPre‑2012Supported strategic sale to Amgen (2012) .
InterMune; GenentechCorporate development/commercial rolesBioPharma commercial and BD foundation .

External Roles

OrganizationRoleYearsNotes
No additional public company directorships disclosed for Holles in THRD’s 2025 proxy .

Fixed Compensation

Metric20232024
Base salary ($)608,000 611,000
Target annual bonus (% of salary)50% (policy in effect pre‑Dec 17, 2024) 55% (increased Dec 17, 2024)
Actual bonus paid ($)334,400 (100% of target) 319,248 (95% of target)

Notes:

  • 2024 annual bonus paid at 95% of target based on development/scientific/strategic objectives; 2023 at 100% of target .

Performance Compensation

YearMetric(s)WeightingTargetActualPayout ($)Vesting
2024Corporate objectives (development, scientific, strategic) Not disclosed100% of target95% of target 319,248 Annual cash bonus
2023Corporate objectives (development, scientific, strategic) Not disclosed100% of target100% of target 334,400 Annual cash bonus

Equity awards are time‑based stock options (no PSUs/TSR metrics disclosed). Key 2024 grant: 396,000 options (Jan 5, 2024) at $10.89, 4‑year vest, monthly after first installment .

Equity Ownership & Alignment

ItemDetail
Beneficial ownership2,057,737 shares (4.6% of outstanding as of 3/31/2025) .
Shares outstanding (for calc)45,108,594 (record date 4/10/2025) .
Unvested restricted stock (12/31/2024)201,784 units ($2,076,357) and 26,748 units ($275,237) .
Options outstanding (12/31/2024)Exercisable: 647,010; Unexercisable: 747,844 (sum of lines in table) .
Option exercise prices$4.20 (repriced 3/6/2023) and $10.89 (1/5/2024 grant) .
In‑the‑money (ITM) status at 12/31/2024$10.29 stock price; $4.20 options ITM; $10.89 options OTM (price basis in proxy) .
Hedging/pledgingHedging and monetization (e.g., collars, exchange funds) prohibited; pledging not expressly addressed in proxy .
ClawbackDodd‑Frank compliant Compensation Recovery Policy adopted June 6, 2023 (recoup incentive pay on restatement) .
Director ownership payHolles receives no additional pay for board service .

Additional context on potential option exercises and selling pressure:

  • In a dissolution, all equity awards terminate immediately prior to dissolution unless exercised; option holders must exercise to receive cash distributions as stockholders .
  • The company’s liquidation model anticipates $10.7–$11.3 million of cash proceeds from stock option exercises prior to dissolution, implying material exercise activity into the shareholder distribution record date .

Employment Terms

TermDetail
Employment statusAt‑will; CEO since Aug 2021 .
Current target bonus55% of base salary (effective Dec 17, 2024) .
One‑time “Special Bonus”$1,867,102 (2019‑2022 era), three‑year vest ending Aug 22, 2025; clawback of unvested on termination; accelerates and is not subject to clawback upon qualifying CIC separation with release .
Change‑in‑control (CIC) severance (CEO)Double trigger: within 3 months before (if separation after potential CIC) or 12 months after CIC—cash lump sum of 18 months base salary + 150% of target bonus + pro‑rated current year bonus; 18 months paid COBRA; 100% acceleration of time‑based equity (performance‑based remains subject to performance); special bonus accelerates; subject to release .
Non‑CIC termination (CEO)12 months base salary (installments) + pro‑rated bonus (lump sum) + up to 12 months COBRA; 12 months additional vesting credit on time‑based equity; subject to release .
Non‑compete / non‑solicitNot disclosed in proxy.
Dissolution treatment of equityAll options/RSUs terminate immediately prior to dissolution; option holders may exercise prior to dissolution to participate as stockholders in cash distributions .

Board Governance

  • Role: Director since Aug 2021; not independent (as CEO). Board chair is separate (Mark Iwicki), with majority independent board and standard committee structure (Audit, Compensation, Nominating/Gov) .
  • Committee memberships: None disclosed for Holles; Audit (Soloway chair), Compensation (Iwicki chair), Nominating/Gov (Seidel chair) comprise independent directors .
  • Attendance: In 2024, no director attended fewer than 75% of board/committee meetings .
  • Director compensation: Holles received no additional compensation for board service in 2024 .
  • Dual‑role implications: Separation of Chair and CEO enhances oversight; Holles’ non‑independent status is mitigated by independent committees and majority‑independent board .

Compensation Structure Analysis

  • Equity-heavy and option-centric: 2024 option grant fair value rose to $3.23M from $1.60M in 2023, increasing at‑risk equity exposure, though primarily time‑based rather than performance‑based .
  • Option repricing (red flag mitigant): On Mar 6, 2023, underwater options were reset to $4.20 (closing price that day) with original schedules unchanged—improves retention but can be viewed as shareholder‑unfriendly if repeated .
  • Pay-for-performance linkage: Annual cash bonus driven by corporate objectives; 2024 payout at 95% of target amid pipeline reset and strategic review; targets and weightings not disclosed, reducing transparency .
  • Clawback and anti‑hedging: Robust restatement-based clawback in place and hedging prohibited—positive for alignment .

Risk Indicators & Red Flags

  • Dissolution and liquidating distribution underway; all equity awards terminate at dissolution (creates exercise timing dynamics and ends long-term incentive alignment) .
  • 2023 option repricing to $4.20 (underwater reset) .
  • Special Bonus construct with clawback/acceleration mechanics (originally tied to tax on forgiven note) may draw scrutiny but includes CIC alignment provisions .
  • As an Emerging Growth Company, THRD does not conduct say‑on‑pay votes—reduced external feedback loop on pay .

Director Compensation (for context)

ComponentPolicy
Cash retainers$40,000 base; Chair +$30,000; Committee chairs: Audit $15,000; Comp $10,000; N&G $8,000; Members: Audit $7,500; Comp $5,000; N&G $4,000; quarterly in arrears .
EquityInitial 40,000 options (36‑month monthly vest); annual 20,000 options (vest by next AGM/1‑year); acceleration upon corporate transaction (includes dissolution) .

Equity Award Detail (selected)

GrantTypeAmountExercise PriceVestingExpiration
Jan 5, 2024Stock options396,000$10.891/48th on Feb 5, 2024, then monthly for 4 years (time‑based) Jan 5, 2034
Mar 6, 2023 (multiple tranches)Stock options998,854 total across tranches$4.20 (repriced)Original schedules retained (various; quarterly/monthly) 2032–2033 per tranche
Aug 9, 2021Restricted stock201,784 unvested; 26,748 unvested at 12/31/24Quarterly vest over 36 months following initial cliffs (per award terms)

Employment Contracts, Severance and Change‑of‑Control Economics (CEO)

  • CIC window (double‑trigger): 3 months before (if separation after potential CIC) to 12 months after a CIC; 18 months salary + 150% target bonus + pro‑rated bonus + 18 months COBRA; 100% acceleration of time‑based equity; Special Bonus accelerates; release required .
  • Non‑CIC termination: 12 months salary (installments) + pro‑rated bonus + up to 12 months COBRA; 12 months vesting credit on time‑based equity; release required .
  • Dissolution: All equity awards terminate immediately prior to dissolution unless exercised; company to notify holders and allow exercise pre‑dissolution .

Investment Implications

  • Near‑term: Expect material option exercises prior to the dissolution record date (company models ~$10.7–$11.3M exercise proceeds), increasing share count eligible for distributions and potentially modestly affecting per‑share outcomes within the stated range ($5.13–$5.42) depending on timing and reserve usage . Equity awards terminate at dissolution, eliminating ongoing overhang but driving concentrated exercise/sale dynamics into the distribution .
  • Governance and alignment: Separation of Chair/CEO and majority‑independent committees support oversight during wind‑down; anti‑hedging and clawback policies are shareholder‑protective .
  • Red flags to monitor: Legacy option repricing (2023) and the Special Bonus structure, though the latter contains CIC‑linked alignment provisions; absence of disclosed ownership guidelines; dissolution eliminates long‑term performance‑based incentives .