Arcadia Biosciences, Inc.

Evaluation of Disclosure Controls and Procedures

As of December 31, 2025, the effectiveness of Arcadia’s disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, or the Exchange Act) were evaluated, with the participation of Arcadia’s principal executive officer and principal financial officer. Based on this evaluation, Arcadia’s principal executive officer and interim principal financial officer, concluded that these disclosure controls and procedures were not effective as of December 31, 2025, as a result of the material weaknesses in our internal control over financial reporting, as further discussed below.

Notwithstanding these material weaknesses, management concluded that our consolidated financial statements included in this Annual Report on Form 10-K fairly present, in all material respects, our financial condition, results of operations and cash flows as of and for the periods presented in conformity with U.S. GAAP.

Management’s Report on Internal Control Over Financial Reporting

Management is responsible for establishing and maintaining adequate internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)). Arcadia’s principal executive officer and interim principal financial officer, evaluated the effectiveness of Arcadia’s internal control over financial reporting using the framework in Internal Control—Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO). Based on this evaluation and the existence of the material weaknesses described below, management concluded that we did not maintain effective internal control over financial reporting as of December 31, 2025.

Material Weaknesses

A material weakness is a deficiency or combination of deficiencies in internal control over financial reporting, such that there is a reasonable possibility that a material misstatement in our annual or interim financial statements will not be prevented or detected on a timely basis.

In connection with the audit of our consolidated financial statements for the year ended December 31, 2025, we identified material weaknesses in our internal control over financial reporting related to: (a) insufficient segregation of duties in the financial statement close process; and (b) insufficient information system controls, including access and change management controls. The Company’s employee headcount has been reduced, resulting in insufficient personnel to maintain proper segregation of duties, which impacts the effectiveness of business processes as well as information systems controls.

Remediation Plans and Status

We are committed to maintaining a strong internal control environment and implementing measures designed to ensure that control deficiencies contributing to the material weaknesses are remediated. In this remediation process, which involve designing and implementing controls and processes to address the material weaknesses, management is required to apply judgment in evaluating the benefits of possible controls and procedures relative to their costs. As a result of our resource constraints, these risks may continue to persist going forward.

Changes in Internal Control over Financial Reporting

Except as described above, there were no changes in our internal control over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) of the Exchange Act) during the quarter ended December 31, 2025 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.