Instil Bio, Inc. 8-K

What Happened Instil Bio, Inc. (TIL) announced on April 1, 2026 that its Audit Committee approved the appointment of RSM US LLP as the company’s independent registered public accounting firm for the fiscal year ending December 31, 2026, replacing Deloitte & Touche LLP. Deloitte was dismissed effective April 1, 2026. Deloitte’s audit reports for the fiscal years ended December 31, 2025 and 2024 contained no adverse opinions or disclaimers and were not qualified or modified. Deloitte provided a letter dated April 3, 2026, filed as Exhibit 16.1, confirming the company’s statements.

Key Details

• Audit committee action: RSM US LLP appointed as independent auditor for fiscal year ending Dec 31, 2026 (effective April 1, 2026).
• Auditor replaced: Deloitte & Touche LLP dismissed effective April 1, 2026.
• Prior audit status: Deloitte’s reports for FY2025 and FY2024 were unqualified; no disagreements or reportable events through April 1, 2026.
• Pre-appointment consultations: Instil Bio and its representatives did not consult RSM on accounting or audit matters during the two most recent fiscal years or the interim period through April 1, 2026.

Why It Matters A change in independent auditors is a notable governance event for investors because it affects who reviews and certifies the company’s financial statements. The filing shows the switch to RSM was approved by the Audit Committee and that Deloitte’s prior reports were clean with no disagreements or reportable events, which suggests no unresolved audit issues were cited by the outgoing auditor. Investors should watch future filings and the company’s audited 2026 financial statements for any audit-related disclosures or changes in accounting practices under the new auditor.