Vistra Corp.

During the three months ended June 30, 2026, none of our officers or directors adopted orterminated any contract, instruction, or written plan for the purchase or sale of Company securities that was intended to satisfy the affirmative defense conditions of Rule 10b5-1(c) (a 10b5-1 Plan) or any "non-Rule 10b5-1 trading arrangement," except as set forth below.

On June 5, 2026, Scott Hudson, Executive Vice President and President of Vistra Retail of the Company, entered into a 10b5-1 Plan. The 10b5-1 Plan provides for the potential sale of up to 66,666 shares of our common stock. Any sales are subject to certain price limitations set forth in the 10b5-1 Plan such that the actual number of shares sold could vary if certain minimum stock prices are not met. The 10b5-1 Plan will become effective on September 8, 2026 and will terminate on February 26, 2027, subject to earlier termination as provided in the 10b5-1 Plan. The 10b5-1 Plan was entered into during an open insider trading window in accordance with our Transactions in Securities Policy.

On May 21, 2026, Kristopher Moldovan, Executive Vice President and Chief Financial Officer of the Company, entered into a 10b5-1 Plan. The 10b5-1 Plan provides for the potential sale of up to 60,000 shares of our common stock. Any sales are subject to certain price limitations set forth in the 10b5-1 Plan such that the actual number of shares sold could vary if certain minimum stock prices are not met. The 10b5-1 Plan will become effective on August 20, 2026 and will terminate on February 15, 2027, subject to earlier termination as provided in the 10b5-1 Plan. The 10b5-1 Plan was entered into during an open insider trading window in accordance with our Transactions in Securities Policy.