X0306 4 2019-01-08 0 0000727207 Accelerate Diagnostics, Inc AXDX 0001021412 SCHULER JACK W 28161 N. KEITH DRIVE LAKE FOREST IL 60045 1 0 1 0 Common Stock 2019-01-08 4 J 0 20000 14.57 A 1964423 I By Schuler Family Foundation Common Stock 13340028 I By Jack W. Schuler Living Trust Common Stock 689355 I By Schuler Grandchildren LLC Common Stock 689355 I By Schuler GC 2010 Continuation Trust The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $14.34 to $14.90, inclusive. The reporting person undertakes to provide to Accelerate Diagnostics, Inc. (the "Issuer"), any shareholder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote (1) to this Form 4. The reporting person disclaims beneficial ownership of the shares of the Issuer owned by the Schuler Family Foundation (the "Foundation"). Although the reporting person is the President of the Foundation and makes investment decisions regarding the Foundation's securities transactions, by virtue of the Foundation's status as a 501(c)(3) tax-exempt organization, the reporting person may not, and in fact, does not personally derive any profit from the Foundation's transactions in the Issuer's common stock. As a result, this Form 4 is a voluntary report with respect to these purchases of the Issuer's common stock by the Foundation. The reporting person has sole voting and dispositive power with respect to such shares in his capacity as trustee of the Jack W. Schuler Living Trust. The reporting person has sole voting and dispositive power with respect to such shares in his capacity as manager of Schuler Grandchildren LLC. The reporting person has shared voting and dispositive power with respect to such shares in his capacity as the grantor of Schuler GC 2010 Continuation Trust. The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these shares in this report shall not be deemed an admission of beneficial ownership of all of the reported shares for purposes of Section 16 or for any other purpose. /s/ Daniel M. Mahoney, attorney-in-fact 2019-01-10