THOR INDUSTRIES INC

Rule 10b5-1 Trading Arrangements

The Company’s Insider Trading Policy permits its directors and officers to trade Company stock under a “Rule 10b5-1 trading arrangement” (as defined in Item 408 of Regulation S-K) that is intended to satisfy the affirmative defense of Rule 10b5-1(c) under the Exchange Act, subject to compliance with applicable regulations as well as the Company’s Insider Trading Policy and share ownership requirements. The Insider Trading Policy provides that each officer or director Rule 10b5-1 trading arrangement must be entered into in writing during an open trading window and at a time that the officer or director is not aware of material nonpublic information. The Company generally requires that any Rule 10b5-1 trading arrangement adopted by an officer or director must not expire within one year of implementation and is subject to a mandatory cooling-off period requirement.

On January 15, 2026, our Chief Financial Officer, Colleen Zuhl, adopted a Rule 10b5-1 trading arrangement (providing for the sale of up to 9,917 shares of Company common stock) that is intended to satisfy the affirmative defense of Rule 10b5-1(c) under the Exchange Act. Mrs. Zuhl’s Rule 10b5-1 trading arrangement provides for a mandatory cooling-off period as required by Rule 10b5-1 and is scheduled to expire on January 15, 2027 or such earlier date as of which all of the shares covered by the arrangement have been sold. As of January 31, 2026, Mrs. Zuhl held 110,497 shares of Company common stock not subject to trading under her Rule 10b5-1 trading arrangement.

On January 23, 2026, our Chief Executive Officer, Robert Martin, adopted a Rule 10b5-1 trading arrangement (providing for the sale of up to 50,033 shares of Company common stock) that is intended to satisfy the affirmative defense of Rule 10b5-1(c) under the Exchange Act. Mr. Martin’s 10b5-1 trading arrangement provides for a mandatory cooling-off period as required by Rule 10b5-1 and is scheduled to expire on April 23, 2027 or such earlier date as of which all of the shares covered by the arrangement have been sold. As of January 31, 2026, Mr. Martin held 291,091 shares of Company common stock not subject to trading under his Rule 10b5-1 trading arrangement.

Except as described above, no director or officer of the Company adopted orterminated a Rule 10b5-1 trading arrangement or “non-Rule 10b5-1 trading arrangement” (as defined in Item 408 of Regulation S-K) during the three months ended January 31, 2026.