SAB Biotherapeutics, Inc.

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 20549

FORM 10-Q

(Mark One)

For the quarterly period ended September 30,2026

OR

For the transition period from ___________________ to ___________________

Commission File Number:001-39871

SAB BIOTHERAPEUTICS, INC.

(Exact Name of Registrant as Specified in its Charter)

Registrant’s telephone number, including area code: (305)845-2813

Securities registered pursuant to Section 12(b) of the Act:

(1) The Company’s publicly traded warrants expired in accordance with their terms on October 22, 2026. On October 22, 2026, The Nasdaq Stock Market LLC filed a Form 25 with the Securities and Exchange Commission to delist the warrants and withdraw their registration under Section 12(b) of the Exchange Act. Trading in the warrants on The Nasdaq Stock Market LLC was suspended on October 23, 2026. The withdrawal of the registration of the warrants under Section 12(b) will become effective 90 days after the filing of the Form 25, or such shorter period as the Securities and Exchange Commission may determine.

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes ☒ No ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes ☒ No ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ☐ No☒

As of November 2, 2026, the registrant had 90,088,831 shares of common stock, $0.0001 par value per share, outstanding.

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