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Robert Hershberg

Robert Hershberg

Chairman, President and Chief Executive Officer at HilleVax
CEO
Executive
Board

About Robert Hershberg

  • Robert M. Hershberg, M.D., Ph.D., is HilleVax’s co‑founder, Chairman, President and Chief Executive Officer, and has served on the board since March 2020; he is 62 years old .
  • Education: B.S. in Molecular Biology and M.D. from UCLA; Ph.D. in Biology from the Salk Institute .
  • Core credentials: former Celgene EVP of Business Development and Global Alliances (2017–2019), CSO (2016–2017), SVP Immuno‑Oncology (2014–2016); previously CEO/co‑founder of VentiRx, CMO at Dendreon, and faculty at Harvard/Brigham .
  • Company performance context: HilleVax remains pre‑revenue with negative EBITDA and net income; 2024 net loss widened following the failed Phase 2b pediatric efficacy readout (NEST‑IN1) for HIL‑214 in July 2024, with no clinical benefit on primary or secondary endpoints . See financial table below (values marked with an asterisk are from S&P Global).
Metric (USD)FY 2023FY 2024
Revenues
EBITDA-$132,466,000*-$105,083,000*
Net Income-$123,566,000*-$147,267,000*
Cash from Operations-$86,783,000*-$108,791,000*
Cash & Equivalents$216,678,000 $154,467,000

Values marked with an asterisk were retrieved from S&P Global.

Past Roles

OrganizationRoleYearsStrategic impact
CelgeneEVP, Business Development & Global Alliances; member of Executive Committee2017–2019Led all BD and alliance management prior to Celgene’s sale to BMS .
CelgeneChief Scientific Officer2016–2017Oversaw scientific platforms, discovery and early clinical development .
CelgeneSVP, Immuno‑Oncology2014–2016Led I‑O research and early development .
VentiRx PharmaceuticalsCo‑founder; CEO (2011–2017); EVP & CMO (2006–2011)2006–2017Built and advanced a clinical‑stage I‑O pipeline .
DendreonSVP & CMOPre‑2006–?Led clinical, regulatory, biometrics for Provenge in mCRPC .
CorixaVP, Medical Genetics2001–2003Functional leadership pre‑acquisition by GSK .
Harvard Med/Brigham & Women’sAssistant Professor / Associate PhysicianEarly careerAcademic/clinical leadership .
Frazier Healthcare PartnersVenture Partner2020–presentCompany creation and biotech investments .

External Roles

OrganizationRoleYearsNotes
Adaptive BiotechnologiesIndependent DirectorSince 2013Public company board service .
NanoString TechnologiesIndependent DirectorSince 2015Public company board service .
Recursion PharmaceuticalsIndependent DirectorSince 2019Public company board service .
Fate TherapeuticsIndependent DirectorSince 2019Public company board service .
Silverback TherapeuticsIndependent DirectorSince 2017Public company board service .
Institute for Protein Design (UW)Scientific Advisory Board memberN/AExternal scientific advisory role .

Fixed Compensation

  • Base salary: $666,750 for 2024 (increased from $635,622 for 2023) .
  • Target annual bonus: 60% of base salary in 2024 (and 2023) .
  • Actual bonus paid: $0 for 2024; $373,380 for 2023 (paid in Feb 2024) .
YearBase Salary ($)Target Bonus %Actual Bonus ($)All Other Comp ($)Total Comp ($)
2024666,750 60% 27,756 6,734,876
2023635,622 60% 373,380 26,098 9,697,495

Notes: As an EGC, HilleVax does not conduct say‑on‑pay votes and provides scaled executive compensation disclosure .

Performance Compensation

  • Annual bonus framework: Executives were eligible for bonuses based on company/individual performance; the Compensation Committee approved no 2024 bonuses for NEOs .
  • Equity program (2024 grants):
    • RSUs: 174,202 units granted on Feb 8, 2024; vest in four equal annual installments on each anniversary of grant .
    • Stock options: 226,885 options granted on Feb 8, 2024 with a $15.06 strike; 10‑year term; 25% vests at first anniversary (Feb 8, 2025), remainder monthly thereafter .
  • Equity program (2023 grants):
    • RSUs: 187,966 units granted Feb 1, 2023; vest annually over 4 years .
    • Stock options: 381,950 options granted Feb 1, 2023 at $18.00 strike; 10‑year term; 25% at first anniversary then monthly .
  • Founders’ restricted stock: 583,097 unvested shares as of Feb 8, 2021 vested in equal monthly installments over 48 months ending Feb 8, 2025; 194,365 vested at grant .
Incentive typeMetricWeightingTargetActual/PayoutVesting/Timing
Annual cash bonus (2024)Company/individual goals (not itemized)Not disclosedNot disclosed0% payout (no bonuses paid) N/A
RSUs (2/8/2024)Time‑basedN/AN/AGrant value $2,623,482 (FASB ASC 718) 25%/yr on each 2/8 from 2025–2028
Options (2/8/2024)Time‑basedN/AN/AGrant value $3,416,888 (FASB ASC 718) 25% on 2/8/2025; monthly thereafter; strike $15.06; exp. 2/7/2034
RSUs (2/1/2023)Time‑basedN/AN/AGrant value $3,383,388 (FASB ASC 718) 25%/yr each 2/1 from 2024–2027
Options (2/1/2023)Time‑basedN/AN/AGrant value $5,279,007 (FASB ASC 718) 25% on 2/1/2024; monthly thereafter; strike $18.00; exp. 1/31/2033
Founders’ RS (2/8/2021)Time‑basedN/AN/AN/A583,097 monthly through 2/8/2025

Equity Ownership & Alignment

  • Beneficial ownership: 1,175,295 shares (2.3% of outstanding as of Apr 25, 2025); includes 298,433 options exercisable within 60 days .
  • Anti‑hedging/anti‑pledging: Policy prohibits pledging company stock and hedging transactions (e.g., zero‑cost collars, forwards); also prohibits short sales and derivatives trading in company stock .
  • Director/CEO board pay: As an employee director, no additional director fees are paid to Hershberg .
Ownership itemDetail
Total beneficial ownership1,175,295 shares; 2.3% of outstanding .
Options exercisable within 60 days (record date 4/25/2025)298,433 shares .
Pledging/HedgingProhibited by company policy .

Outstanding equity at FY‑end 2024 (for reference):

AwardUnvested units at 12/31/2024Market value (at $2.07)
Founders’ restricted stock (2/8/2021)24,295$50,291
RSUs (2/1/2023)140,975$291,818
RSUs (2/8/2024)174,202$260,598
Options (2/1/2023)175,060 unexercisable; strike $18.00; exp. 1/31/2033
Options (2/8/2024)226,885 unexercisable; strike $15.06; exp. 2/7/2034

Employment Terms

  • Employment agreement effective January 6, 2023; base salary $666,750 (2024) and target bonus 60%; requires at least 70% of working time devoted to HilleVax .
  • Severance (outside change‑in‑control): 12 months base salary; pro‑rated target bonus for year of termination plus any unpaid prior year bonus; COBRA subsidy during severance period; vesting acceleration for awards scheduled to vest during severance period (Founders’ shares governed separately) .
  • Severance (within 24 months after a change‑in‑control, i.e., double trigger): 18 months base salary; target bonus for year of termination plus any unpaid prior year bonus; full vesting acceleration of all unvested equity (Founders’ shares per separate agreement) .
  • 280G “best‑pay cap” applies to maximize after‑tax value if excise taxes would otherwise apply .
  • Retention bonus letter (March 25, 2025): $500,063 payable if a change‑in‑control occurs on or before March 31, 2026 and he remains in service through closing; also payable upon certain qualifying terminations prior to payment (without cause, death/disability, or resignation for good reason) subject to release .
  • Clawback policy adopted consistent with SEC/Nasdaq rules (applies to Section 16 officers) .

Board Governance

  • Dual role: CEO and Chairman; board has appointed a Lead Independent Director (Patrick Heron) with defined authorities (chairs executive sessions of independent directors, reviews agendas/materials, facilitates board‑CEO communication, consults on governance and performance) .
  • Independence: Board determined that all directors except Drs. Hershberg and Kohli are independent under Nasdaq rules .
  • Board/Committees: Audit (Chair: Jeryl Hilleman), Compensation (Chair: Julie Gerberding), Nominating & Corporate Governance (Chair: Patrick Heron) .
  • Attendance: Board met 16 times in 2024; each director attended at least 75% of applicable meetings/committees .

Performance & Track Record (selected)

  • Pipeline outcome: Phase 2b NEST‑IN1 in infants (HIL‑214) failed primary endpoint and showed no benefit on secondary endpoints in July 2024; safety/immunogenicity consistent with prior data .
  • Strategic options: Company disclosed it is exploring development paths and business‑development or strategic alternatives for vaccine candidates following the NEST‑IN1 outcome .

Compensation Structure Analysis

  • Mix shift and risk: Pay heavily equity‑oriented via multi‑year RSU and option grants (2023–2024), aligning with long‑term outcomes; no 2024 cash bonus was paid, indicating downward pay sensitivity to results .
  • Time‑vesting equity predominates; no disclosed formulaic performance equity metrics (e.g., TSR/EBITDA) in 2023–2024; as an EGC, detailed metric disclosure is limited .
  • CIC economics: Double‑trigger equity acceleration plus 18‑month cash and target bonus can be shareholder‑friendly relative to single‑trigger structures; however, the 2025 retention bonus tied to a CIC is an incremental sale incentive .
  • Governance mitigants: Anti‑hedging/anti‑pledging policy and clawback policy reduce misalignment and risk behaviors .

Vesting Schedules and Potential Selling Pressure

  • Near/medium‑term vesting events (time‑based):
    • Founders’ restricted stock monthly vesting completed on February 8, 2025 .
    • RSUs (2/1/2023) vest 25% annually through 2027; RSUs (2/8/2024) vest annually through 2028 .
    • Options (2/1/2023) and (2/8/2024) vest per 1‑year cliff then monthly thereafter (strikes $18.00 and $15.06, expirations 2033 and 2034) .
  • Insider trading policy: Pledging/hedging banned; standard BOD/Section 16 trading controls apply; Section 16 compliance note for 2024 listed late Form 4s for some directors—not naming Hershberg .
  • Form 4 flow: Our document index shows no Form 4s available via this system for HLVX; we could not quantify recent net selling/buying pressure from filings in this environment [ListDocuments: type 4 returned none].

Director Compensation (as applicable to dual role)

  • As an employee director (CEO/Chair), Hershberg receives no additional director compensation; non‑employee director retainer/option program is separate .

Related‑Party/Conflicts Snapshot

  • Major holders: Entities affiliated with Frazier Life Sciences (Heron/Topper) and Takeda are significant shareholders; Hershberg is a Venture Partner at Frazier (since 2020). The proxy details Frazier/Takeda ownership and Takeda licensing/TSAs; no specific related‑party transaction is attributed to Hershberg individually in the disclosures cited here .

Equity Ownership & Compensation Tables (detail)

Summary Compensation (Hershberg):

YearSalary ($)Bonus ($)Stock Awards ($)Option Awards ($)All Other ($)Total ($)
2024666,750 2,623,482 3,416,888 27,756 6,734,876
2023635,622 373,380 3,383,388 5,279,007 26,098 9,697,495

Outstanding Awards at FY‑end 2024 (Hershberg):

GrantTypeUnexercised (Exercisable)Unexercised (Unexercisable)StrikeExpiryUnvested UnitsValue at $2.07
2/8/2021Restricted stock24,295$50,291
2/1/2023RSU140,975$291,818
2/1/2023Option175,060$18.001/31/2033
2/8/2024RSU174,202$260,598
2/8/2024Option226,885$15.062/7/2034

Beneficial Ownership (as of April 25, 2025):

HolderShares%
Robert Hershberg, M.D., Ph.D.1,175,295 2.3%
Includes options exercisable within 60 days298,433

Investment Implications

  • Alignment and retention: Large time‑vested equity grants and substantial unvested holdings align CEO with long‑term equity value; anti‑hedging/pledging and clawback strengthen alignment controls .
  • Sale incentive vs. governance mitigants: The March 2025 CIC‑contingent retention bonus ($500,063) and double‑trigger CIC acceleration create incentives around strategic alternatives; the Lead Independent Director structure, independent committees, and EGC status mitigate—but do not eliminate—dual‑role risks .
  • Execution risk: The failed NEST‑IN1 primary endpoint in 2024 materially elevates program and funding risk; lack of 2024 bonuses reflects pay sensitivity to results, but forward value creation depends on re‑design/BD outcomes .
  • Trading signals: Without visible Form 4 flow here, near‑term selling pressure is most likely tied to scheduled RSU/option vesting and potential liquidity needs; policy prohibits pledging/hedging, reducing risk of forced selling .

Disclaimer on financial table: Certain values were retrieved from S&P Global.