THOR INDUSTRIES INC

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

**SCHEDULE 14A

(Rule 14a-101)

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Exchange Act of 1934

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THOR Industries, Inc.

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Dear Fellow Shareholders of THOR Industries:

Andrew E. Graves Chairman of the Board

Thank you for your continued support of THOR Industries. On behalf of the Board of Directors, I am pleased to invite you to participate in and attend the 2026 Annual Meeting of Shareholders.

Fiscal Year 2026 was a difficult year for the RV industry and THOR. After a comparatively strong first half of our fiscal year, the prolonged downcycle in the recreational vehicle industry was exacerbated by world events, including the military conflict involving Iran, which stymied consumer confidence. Continued elevated interest rates, sustained pressure on household budgets, and persistent affordability challenges kept retail demand suppressed. Our results were further impacted by a number of discrete charges that are both not representative of the ongoing earnings power of our business and expected to allow us to operate more efficiently and effectively in the coming years.

A downturn, however, tests the fundamentals of a business, and THOR’s fundamentals remain firmly intact: the strength of our brands, the health of our balance sheet, our disciplined operating culture, and our leadership position across the RV industry. Rather than waiting for market conditions to improve, we spent Fiscal

A downturn, however, tests the fundamentals of a business, and THOR’s fundamentals remain firmly intact.

Year 2026 acting decisively on what was within our control. Central to this effort is the strategic evolution of our North American RV operating model, which is designed to capture the scale, synergies, and best practices available across our operating companies. This includes the expansion of enterprise-wide procurement and strategic sourcing to capture purchasing leverage, consolidation of certain functions to reduce redundant costs, and the tight alignment of production with retail demand to protect the health of our dealer network. These actions are designed to lower our cost base durably—not temporarily—and to position THOR to emerge from this downcycle structurally stronger and more profi table.

Even in a challenging year, THOR’s cash generation and balance sheet strength allowed us to continue executing our capital allocation strategy for the benefi t of our shareholders.

In Fiscal Year 2026, THOR generated net income attributable to THOR of $177.5 million and net cash from operations totaled $321.2 million. THOR deployed its cash from operations for the benefi t of our shareholders as follows:

THOR also continued to invest in the future of its business, particularly in the areas of automation, product innovation, people development and succession planning, connected vehicles, and new product offerings. These investments are deliberate: they ensure that the THOR that emerges from this downcycle is more innovative and more competitive than the one that entered it.

As we look ahead to Fiscal Year 2027, we are clear-eyed about the near-term environment. But the history of our industry is unambiguous—downcycles give way to recovery—and the enduring appeal of the RV lifestyle continues to draw new generations of consumers to our products. When that recovery arrives, the work we have done during this downturn will allow THOR to convert it into earnings power and long-term value for you, our shareholders. Thank you for your continued trust and investment in THOR.

ANDREW E. GRAVES

Chairman of the Board

Notice of Annual Meeting of Shareholders

IMPORTANT NOTICE REGARDING THE AVAILABILITY OF PROXY MATERIALS FOR THE THOR INDUSTRIES, INC. ANNUAL MEETING OF SHAREHOLDERS TO BE HELD ON DECEMBER 16, 2026

Dear Fellow Shareholders:

This year’s Annual Meeting will be held virtually onDecember 16, 2026, at 8:00 a.m. EST. Shareholders of record as of the close of business on October 19, 2026 (the “Record Date”) are entitled to vote at the Annual Meeting and any postponement or adjournment thereof.

Shareholders will be able to attend the Annual Meeting, vote, and examine our list of shareholders by visitingwww.virtualshareholdermeeting.com/THO2026, and will be required to enter the 16-digit control number on their proxy card or voting instruction form.

THOR Industries tremendously values the input of its Shareholders.Your vote is important to us. Please take the time to review our Proxy Statement. We encourage you to vote your shares prior to the Annual Meeting, or, if not possible, to submit your votes electronically during the Annual Meeting.

AT THE MEETING, OUR SHAREHOLDERS WILL BE ASKED TO:

We appreciate your continued confidence in our Company and look forward to your input.

By Order of the Board of Directors

TREVOR Q. GASPER

*Senior Vice President,

General Counsel, and Corporate Secretary*

*Elkhart, Indiana

November 3, 2026*

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You are entitled to vote at the Meeting if you were a holder of record of THOR Industries, Inc. common stock, $0.10 par value (“Common Stock”), at the close of business on October 19, 2026. At the close of business on that date, 51,778,200 shares of our Common Stock were outstanding and entitled to vote.

REVIEW THE PROXY STATEMENT AND VOTE IN ONE OF FOUR WAYS:

NOTICE TO SHAREHOLDERS: Our 2026 Proxy Statement and Annual Report on Form 10-K are available free of charge on our website at www.thorindustries.com.

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