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Mythic is seeking a Stock Administrator to build and lead its equity administration function from the ground up. This is a foundational role for a scaling company, requiring ownership of the complete equity lifecycle and systems.
Key Responsibilities:
- Establish Mythic's equity administration program end-to-end: policies, procedures, grant and vesting calendars, controls, and documentation. You will be the single point of contact for all equity matters across the company.
- Lead the implementation of an equity administration platform, including vendor selection, data mapping and migration, plan and award configuration, integration with HR and finance systems (Rippling, NetSuite), testing, and parallel reconciliation to ensure a clean system of record from day one.
- Maintain and reconcile the cap table, legal records, equity platform, and transfer agent records, especially during financings and capital markets events.
- Administer the full award lifecycle across stock options (ISOs/NSOs), RSUs, PSUs, and future programs such as an ESPP: grants, vesting, exercises, settlements, cancellations, forfeitures, terminations, and post-termination exercise windows.
- Validate and clean up historical equity data, resolving duplicate participant records, confirming termination dates, and closing documentation gaps before they become audit or diligence findings.
- Identify awards with event-contingent vesting (single- vs. double-trigger), model award treatment and conversions, and plan mass settlement and tax withholding for transaction and liquidity events.
- Partner with Finance on stock-based compensation accounting under ASC 718: deliver accurate, timely data for quarterly close, expense reporting, and external audit. Design equity controls that will stand up to SOX.
- Partner with Payroll and People on tax withholding, income reporting (including Forms 3921/3922 where applicable), new-hire and promotion grant processes, and termination workflows.
- Run the equity approval process with the Board and Compensation Committee, including grant calendars, approval materials, consents, and recordkeeping.
- Build public-company equity compliance in partnership with Legal: insider trading policy administration, trading windows and pre-clearance, Section 16 reporting (Forms 3, 4, and 5), Rule 144 and 10b5-1 plan support, and equity-related disclosure inputs.
- Lead employee education on equity: onboarding, FAQs, education sessions, and communications on any changes to award terms or programs.
- Serve as the go-to resource for auditors, outside counsel, and diligence requests on all equity matters.
- Support broader corporate governance and legal readiness initiatives under the Chief Legal Officer as the company scales.
Requirements:
- 8+ years of stock plan administration or equity compensation experience, including ownership of an equity function. Experience as a company's first or senior-most equity professional is strongly preferred.
- Experience leading equity administration platform implementation and working cross-functionally with Finance, People, Payroll, and Legal to integrate the platform accordingly.
- Thorough command of options (ISO/NSO), RSUs, PSUs, and 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: comfortable as a team of one, highly organized, exacting about accuracy, and able to explain complex equity topics clearly to employees and executives alike.
- Certified Equity Professional (CEP) designation preferred.
