ACHN 2018 Proxy Statement

Fees of Independent Registered Public Accounting Firm Auditors’ Fees The following table summarizes the fees of PricewaterhouseCoopers LLP, our independent registered public accounting firm, billed to us for each of the last two fiscal years. Fiscal 2017 Fiscal 2016 Audit Fees(1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $559,302 $502,126 Audit-Related Fees(2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . — — Tax Fees(3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30,000 212,500 All Other Fees(4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2,727 1,818 Total Fees . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $592,029 $716,444 (1) Audit Fees consist of fees for the audit of our financial statements, the audit of our internal control over financial reporting, the review of interim financial statements included in our quarterly reports on Form 10-Q and other professional services provided in connection with statutory and regulatory filings or engagements. (2) Audit-Related Fees consist of fees for assurance and related services that are reasonably related to the performance of the audit and the review of our financial statements and which are not reported under Audit Fees. (3) Tax Fees consist of fees for tax compliance, tax advice and tax planning services. Tax compliance services, which relate to services provided for preparation of tax returns, claims for refunds and tax payment-planning services, accounted for the total tax fees billed in fiscal 2017 and 2016. (4) All Other Fees consists of a subscription to PricewaterhouseCoopers LLP’s online accounting research library for fiscal 2017 and 2016 and the financial statement disclosure checklist tool for fiscal 2017. Pre-Approval Policies and Procedures Our Audit Committee has adopted policies and procedures relating to the approval of all audit and non-audit services that are to be performed by our independent registered public accounting firm. This policy generally provides that we will not engage our independent registered public accounting firm to render audit or non-audit services unless the service is specifically approved in advance by the Audit Committee or the engagement is entered into pursuant to one of the pre-approval procedures described below. From time to time, our Audit Committee may pre-approve specified types of services that are expected to be provided to us by our independent registered public accounting firm during the next 12 months. Any such pre-approval is detailed as to the particular service or type of services to be provided and is also generally subject to a maximum dollar amount. Our Audit Committee has also delegated to the chairman of the Audit Committee the authority to approve any audit or non-audit services to be provided to us by our independent registered public accounting firm. Any approval of services by the chairman of the Audit Committee pursuant to this delegated authority is reported on at the next meeting of the Audit Committee. In fiscal 2017, there were no audit fees approved outside of the pre-approval process outlined above. Certain Relationships and Related Transactions In May 2015, we entered into a stock purchase agreement with Johnson & Johnson Innovation –JJDC, Inc. (JJDC) pursuant to which JJDC purchased 18,367,346 shares of our common stock, par value $0.001 per share (the “Common Stock”). On November 15, 2017, we entered into an underwriting agreement (the “Underwriting 57