Stock Administrator

Mythic•Austin, TX

About The Position

Mythic is hiring its first dedicated equity professional to build and lead the company’s equity administration function as it scales and prepares for public-company requirements. Reporting to the Chief Legal Officer, this single-person leadership role owns the cap table and equity system of record, the full award lifecycle, platform implementation, controls, reporting, compliance, and employee communications. The role works closely with Finance, People, Payroll, outside counsel, auditors, and the executive team. The Director will establish equity policies, procedures, calendars, controls, and documentation; implement and integrate an equity administration platform; reconcile company and legal records; administer current and future equity awards; and remediate historical equity data. The role will also support transaction and liquidity-event planning, ASC 718 reporting and SOX-ready controls, payroll and tax processes, Board and Compensation Committee approvals, and public-company equity compliance. The Director will make equity programs understandable to employees and support broader corporate governance and legal-readiness initiatives under the Chief Legal Officer.

Requirements

  • At least 8 years of stock plan administration or equity compensation experience, including ownership of an equity function.
  • Experience leading an equity administration platform implementation and integrating the platform cross-functionally with Finance, People, Payroll, and Legal.
  • Thorough command of ISO and NSO options, RSUs, PSUs, ESPPs, cap table mechanics, equity tax treatment and withholding, and ASC 718.
  • Working knowledge of Section 16, Rule 144, and insider trading compliance.
  • Experience working directly with a Board and Compensation Committee, outside counsel, and external auditors.
  • A builder’s mindset and ability to work as a team of one, stay highly organized, maintain accuracy, and explain complex equity topics clearly to employees and executives.

Nice To Haves

  • Experience as a company’s first or most senior equity professional.
  • Certified Equity Professional (CEP) designation.

Responsibilities

  • Build the equity administration function, including policies, procedures, grant and vesting calendars, controls, and documentation.
  • Serve as the company’s primary point of contact for equity matters.
  • Lead equity administration platform implementation from planning through cutover, including vendor management, data mapping and migration, plan and award configuration, system integrations, testing, and parallel reconciliation.
  • Maintain and reconcile the cap table, legal records, equity platform, and, when applicable, transfer agent records, particularly around financings and capital markets events.
  • Administer the lifecycle of stock options, RSUs, PSUs, and future programs such as an ESPP, including grants, vesting, exercises, settlements, cancellations, forfeitures, terminations, and post-termination exercise windows.
  • Validate historical grants against Board approvals and award documentation; resolve duplicate participant records, confirm termination dates, and address documentation gaps.
  • Identify awards with event-contingent vesting, model award treatment and conversions, and plan mass settlement and tax withholding for transaction and liquidity events.
  • Partner with Finance on ASC 718 stock-based compensation data, quarterly close, expense reporting, external audits, and equity controls designed to stand up to SOX.
  • Partner with Payroll and People on tax withholding, income reporting, applicable Forms 3921 and 3922, new-hire and promotion grant processes, and termination workflows.
  • Run Board and Compensation Committee equity approval processes, including grant calendars, approval materials, consents, and recordkeeping.
  • Partner with Legal on public-company equity compliance, including insider trading policy administration, trading windows, pre-clearance, Section 16 reporting, Rule 144 and 10b5-1 plan support, and equity-related disclosure inputs.
  • Lead employee onboarding, FAQs, education sessions, and communications about changes to award terms or programs.
  • Serve as a resource for auditors, outside counsel, and diligence requests on equity matters.
  • Support broader corporate governance and legal-readiness initiatives under the Chief Legal Officer.
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