INTRODUCTORY NOTE
On November 7, 2022, OmniAb, Inc. (formerly known as Avista
Public Acquisition Corp. II, “we,” “us,” “our,” “OmniAb” and the
“Company”) filed a Current Report on Form 8-K (the “Original Report”) to report
the closing of the Business Combination and related matters under
Items 1.01, 2.01, 3.02, 3.03, 5.01, 5.02, 5.06, and 9.01 of Form
8-K. Due to the large
number of events to be reported under the specified items of Form
8-K, this Form 8-K/A is being filed to amend the
Original Report to include additional matters related to the
closing of the Business Combination under Items 4.01, 5.03, 5.05
and 8.01 of Form 8-K (as
amended, this “Report”).
Capitalized terms used herein but not defined herein have the
meanings given to such terms in the Original Report.
Item 4.01. Changes in Registrant’s Certifying Accountant.
For accounting purposes, the transactions contemplated by the
Business Combination Agreement are treated as a reverse
capitalization and, as such, the historical financial statements of
the accounting acquirer, OmniAb, which have been audited by
Ernst & Young LLP (“EY”), will become the historical
financial statements of the Company. In a reverse capitalization, a
change of accountants is presumed to have occurred unless the same
accountant audited the pre-transaction financial statements of
both the legal acquirer and the accounting acquirer, and such
change is generally presumed to occur on the date the reverse
capitalization is completed.
(a) Dismissal of independent registered public accounting firm.
On November 1, 2022, the Board dismissed Marcum LLP
(“Marcum”), APAC’s independent registered public accounting firm
prior to the Business Combination, as the Company’s independent
registered public accounting firm effective immediately following
the filing of the Company’s quarterly report on Form 10-Q for the quarter ended
September 30, 2022, which consists only of the accounts of the
pre-Business Combination
special purpose acquisition company, APAC.
The report of Marcum on APAC’s, the Company’s legal predecessor,
financial statements as of December 31, 2021 and for the
period from February 5, 2021 (inception) to December 31,
2021, did not contain an adverse opinion or a disclaimer of
opinion, and was not qualified or modified as to uncertainties,
audit scope or accounting principles, except for an explanatory
paragraph in such report regarding substantial doubt about APAC’s
ability to continue as a going concern.
During the period from February 5, 2021 (inception) to
December 31, 2021 and subsequent interim period through
November 1, 2022, there were no disagreements between the
Company and Marcum on any matter of accounting principles or
practices, financial disclosure or auditing scope or procedure,
which disagreements, if not resolved to the satisfaction of Marcum,
would have caused it to make reference to the subject matter of the
disagreements in its reports on APAC’s financial statements for
such period.
During the period from February 5, 2021 (inception) to
December 31, 2021 and subsequent interim period through
November 1, 2022, there were no “reportable events” (as
defined in Item 304(a)(1)(v) of Regulation S-K under the Exchange Act), except
that for the quarter ended June 30, 2022, based upon an evaluation
of the effectiveness of the design and operation of its disclosure
controls and procedures, the Chief Executive Officer and the Chief
Financial Officer of APAC concluded that its disclosure controls
and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under
the Exchange Act) were not effective due to its accounting for
complex financial instruments. Based on the foregoing, it was
determined that APAC had a material weakness as of June 30, 2022
relating to its internal controls over financial reporting.
The Company has provided Marcum with a copy of the foregoing
disclosures and has requested that Marcum furnish the Company with
a letter addressed to the SEC stating whether it agrees with the
statements made by the Company set forth above. A copy of Marcum’s
letter, dated November 7, 2022, is filed as Exhibit 16.1 to
this Report.
(b) Disclosures regarding the new independent auditor.
On November 1, 2022, the Board approved the engagement of EY
as the Company’s independent registered public accounting firm to
audit the Company’s consolidated financial statements for the year
ending December 31, 2022. EY served as the independent
registered public accounting firm of Legacy OmniAb prior to the
Business Combination. During the period from February 5, 2021
(inception) to December 31, 2021 and subsequent period through
November 7, 2022, neither the Company nor anyone on the
Company’s behalf consulted with EY with