Zillow Group Announces CAO Retirement; Rikki Tremblay Named Principal Accounting Officer

What Happened

• Zillow Group filed an 8-K on Sept. 17, 2026, announcing that Chief Accounting Officer and principal accounting officer Jennifer Rock will retire effective September 17, 2026, and will remain in an advisory role through March 1, 2027. The filing states her retirement was not due to any disagreement with the company on operations, policies or financial reporting.
• The Board appointed Rikki Tremblay as Vice President, Principal Accounting Officer effective September 17, 2026. Ms. Tremblay has worked at Zillow since December 2014 in a series of financial reporting and technical accounting roles, is a Washington-licensed CPA, and holds two B.A. degrees from the University of Washington.

Key Details

• Jennifer Rock retirement effective: September 17, 2026; advisory role through March 1, 2027.
• New principal accounting officer: Rikki Tremblay, appointment effective September 17, 2026 (internal promotion; prior roles include VP, Reporting, Technical Accounting & Controls).
• Compensation changes for Tremblay: annual base salary increased to $400,000 (effective Sept 17, 2026).
• Equity award: $500,000 value granted Sept 18, 2026 (stock options, RSUs, or combination per her election); award amount set by dividing $500,000 by the 20-day average closing price through Sept 16, 2026; vests over four years in 16 equal quarterly installments.
• Tremblay will enter the company’s standard indemnification agreement.

Why It Matters

• This is a key leadership transition in Zillow’s accounting function. An internal promotion to principal accounting officer suggests continuity in financial reporting and controls rather than an abrupt outside hire.
• For investors, the filing signals no reported disputes over accounting or disclosures and outlines the compensation cost (a $500k equity grant plus higher salary) tied to the appointment, which is a routine personnel expense rather than a material corporate action.