SAB Biotherapeutics, Inc.

Item 7.01 Regulation FD Disclosure. On April 22, 2026, SAB Biotherapeutics, Inc., a Delaware corporation (the “Company” or “SAB BIO”) made available a presentation that includes additional information regarding the Company’s Phase 1 HUman anti-thymocyte biologic in first-in-MAN (HUMAN) clinical trial of SAB-142 (the “Presentation”). On April 22, 2026, the Company also issued a press release announcing the release of the data set forth in the Presentation (the “Release”). A copy of the Release is furnished herewith as Exhibit 99.1 to this Current Report on Form 8-K. A copy of this Presentation is furnished herewith as Exhibit 99.2 to this Current Report on Form 8-K. The Presentation is also available on the investor relations section of the Company’s website. Information contained on the Company’s website is not incorporated by reference into this Current Report on Form 8-K, and you should not consider any information on, or that can be accessed from, the Company’s website as part of this Current Report on Form 8-K. Forward-Looking Statements Certain statements made in this Current Report on Form 8-K and in the Release that are not historical facts are forward-looking statements for purposes of the safe harbor provisions under The Private Securities Litigation Reform Act of 1995. Forward-looking statements generally are accompanied by words such as “believe,” “may,” “will,” “to be,” “estimate,” “continue,” “anticipate,” “intend,” “expect,” “should,” “would,” “plan,” “predict,” “potential,” “seem,” “seek,” “future,” “outlook,” and similar expressions that predict or indicate future events or trends or that are not statements of historical matters. These forward-looking statements include, but are not limited to, statements regarding future events, including statements about the development and clinical trial results of the Company’s T1D program and other discovery programs. These statements are based on the current expectations of SAB BIO and are not predictions of actual performance, and are not intended to serve as, and must not be relied on, by any investor as a guarantee, prediction, definitive statement, or an assurance, of fact or probability. These statements are only current predictions or expectations, and are subject to known and unknown risks, uncertainties and other factors which may be beyond our control. Actual events and circumstances are difficult or impossible to predict, and these risks and uncertainties may cause our or our industry’s results, performance, or achievements to be materially different from those anticipated by these forward-looking statements. A further description of risks and uncertainties can be found in the sections captioned “Risk Factors” in our most recent annual report on Form 10-K, subsequent quarterly reports on Form 10-Q, as may be amended or supplemented from time to time, and other filings with or submissions to, the U.S. Securities and Exchange Commission. Except as otherwise required by law, SAB BIO disclaims any intention or obligation to update or revise any forward-looking statements, which speak only as of the date they were made, whether as a result of new information, future events, or circumstances or otherwise.