X0609 4 2026-04-14 0 0001799191 Oncology Institute, Inc. TOI 0001683021 Kaushal Mohit false C/O THE ONCOLOGY INSTITUTE 18000 STUDEBAKER RD, SUITE 800 CERRITOS CA 90703 1 0 0 0 1 Common Stock 2026-04-14 4 S 0 57286 3.5017 D 211016 D Common Stock 2026-04-16 4 S 0 38433 3.5005 D 172583 D Represents shares sold pursuant to a Rule 10b5-1 plan adopted by the reporting person on December 16, 2025. Price of $3.5017 was the volume weighted average selling price of all sales by the reporting person on April 14, 2026 within a one-dollar range. Actual prices ranged from $3.5000 to $3.5300. The reporting person hereby undertakes to provide upon request of the Commission staff full information regarding the number of shares sold at each separate price. Price of $3.5005 was the volume weighted average selling price of all sales by the reporting person on April 16, 2026 within a one-dollar range. Actual prices ranged from $3.5000 to $3.5050. The reporting person hereby undertakes to provide upon request of the Commission staff full information regarding the number of shares sold at each separate price. /s/ Mark Hueppelsheuser, Attorney-in-Fact for Mohit Kaushal 2026-04-16