false 0001833214 0001833214 2023-07-25 2023-07-25 0001833214 sabs:CommonStock00001ParValuePerShareCustomMember 2023-07-25 2023-07-25 0001833214 sabs:WarrantsEachExercisableForOneShareOfCommonStockAtAnExercisePriceOf1150PerShareCustomMember 2023-07-25 2023-07-25



Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934
Date of Report (Date of earliest event reported): July 25, 2023

(Exact name of Registrant as Specified in Its Charter)

(State or Other Jurisdiction
of Incorporation)
(Commission File Number)
(IRS Employer
Identification No.)
2100 East 54th Street North
Sioux Falls, South Dakota
(Address of Principal Executive Offices)
(Zip Code)
Registrants Telephone Number, Including Area Code: 605 679-6980
(Former Name or Former Address, if Changed Since Last Report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:
Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
Securities registered pursuant to Section 12(b) of the Act:
Title of each class
Name of each exchange on which registered
Common stock, $0.0001 par value per share
The NASDAQ Stock Market LLC
Warrants, each exercisable for one share of Common Stock at an exercise price of $11.50 per share
The NASDAQ Stock Market LLC
Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§ 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§ 240.12b-2 of this chapter).
Emerging growth company
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.


Item 4.01 Changes in Registrant’s Certifying Accountant.
On July 25, 2023, Mayer Hoffman McCann P.C. (“MHM”) informed SAB Biotherapeutics, Inc. (the “Company”) and the Audit Committee of the Company’s Board of Directors that it would not stand for re-election as the Company’s independent registered public accounting firm for the audit of the Company’s financial statements for the fiscal year ending December 31, 2023. MHM will cease to serve as the Company’s independent registered public accounting firm on the earlier of the date a new firm is engaged, the date of the filing of the Company’s Quarterly Report on Form 10-Q for the quarterly period ended June 30, 2023, or August 21, 2023.
MHM is not required to and did not seek the Company’s consent to its decision to resign as the Company’s independent registered public accounting firm. As a result, neither the Company’s Board of Directors nor the Company’s Audit Committee took part in MHM’s decision to resign. The Company is in the process of selecting a new independent registered public accounting firm.
MHM audited the Company’s consolidated financial statements as of and for the fiscal years ended December 31, 2022 and 2021. MHM’s report, dated April 14, 2023, with respect to the consolidated financial statements of SAB Biotherapeutics, Inc. and Subsidiaries as of December 31, 2022 and 2021 and for each of the years ended December 31, 2022 and December 31, 2021 (i) did not contain any adverse opinion or disclaimer of opinion and were not qualified or modified as to uncertainty, audit scope or accounting principles, except that such report contained an explanatory paragraph in respect to uncertainty as to the Company’s ability to continue as a going concern and, (ii) did not advise the Company of any “reportable events” within the meaning of Item 304(a)(1)(v) of Regulation S-K with respect to the Company other than in connection with management’s conclusions in its annual report on Form 10-K for the fiscal year ended December 31, 2022, filed with the U.S. Securities and Exchange Commission (the “Commission”) on April 14, 2023 (as amended), that the Company did not design appropriate review controls surrounding technical accounting matters and significant and/or unusual transactions, which resulted in a material error that was corrected through the restatement of the Company’s consolidated financial statements as of and for the year ended December 31, 2021, and the correction of the unaudited quarterly financial information for period endings March 31, 2022, June 30, 2022, and September 30, 2022.
The Company provided MHM with a copy of this Current Report on Form 8-K in accordance with Item 304(a) of Regulation S-K prior to its filing with the Commission and requested that MHM furnish the Company with a letter addressed to the Commission stating whether it agrees with the above statements and, if it does not agree, the respects in which it does not agree. A copy of the letter from MHM is filed as Exhibit 16.1 hereto.
Item 9.01 Financial Statements and Exhibits.
Exhibit Number
Letter from Mayer Hoffman McCann P.C. to the Securities and Exchange Commission dated July 31, 2023.
Cover Page Interactive Data File-the cover page XBRL tags are embedded within the Inline XBRL document.

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
SAB Biotherapeutics, Inc.
July 31, 2023
/s/ Eddie J. Sullivan
Eddie J. Sullivan
Chief Executive Officer

Exhibit 16.1


July 31, 2023


Securities and Exchange Commission

100 F Street N.E.

Washington, D.C. 20549




We have read Item 4.01 of SAB Biotherapeutics, Inc.’s Form 8-K dated July 31, 2023, and we agree with the statements set forth in Item 4.01, insofar as they relate to our firm. We have no basis to agree or disagree with other statements of the registrant contained therein.


Very truly yours,


/s/ Mayer Hoffman McCann P.C.


San Diego, California