Personalis, Inc. 8-K

What Happened

• Personalis, Inc. (PSNL) filed a Form 8-K on January 8, 2026 (Item 2.02) to furnish a press release announcing certain preliminary financial and operational results for the quarter and fiscal year ended December 31, 2025. The press release is furnished as Exhibit 99.1 to the report. The report was signed by Aaron Tachibana, Chief Financial Officer and Chief Operating Officer.

Key Details

• Date filed: January 8, 2026.
• Reporting period: quarter and fiscal year ended December 31, 2025.
• Disclosure format: press release furnished as Exhibit 99.1 (information is furnished, not "filed" for purposes of Section 18 liability and is not incorporated by reference into registration statements except as expressly stated).
• Form 8-K Item: 2.02 (Results of Operations and Financial Condition).

Why It Matters

• Furnishing preliminary results provides investors an early look at Personalis’s recent operating and financial trends for Q4/FY2025, which can influence expectations ahead of any formal earnings release or filing of audited results.
• The legal note that the release is "furnished" (not "filed") limits certain liabilities and means the company is disclosing the information for transparency but is not automatically incorporating it into other SEC filings.
• Investors should look for the forthcoming full earnings release and periodic filings for audited numbers, management discussion, and any updates to guidance.