Item 9B. Other Information

On February 24, 2022, the company and Mark P. Stevenson entered into a consulting agreement relating to ongoing services that Mr. Stevenson will provide to the company following his last day as an employee on March 18, 2022. Under the consulting agreement, which has a term ending March 1, 2023, Mr. Stevenson will serve on the company’s Scientific Advisory Board and will also provide ongoing advice and services relating to COVID-19 research and products. During the term of the consulting agreement, Mr. Stevenson’s outstanding and unvested equity awards granted in fiscal year 2021 will continue to vest in accordance with their original terms based on his continued service to the company and, if he provides consulting services through March 1, 2023, his outstanding and unvested equity awards granted in fiscal year 2021 will vest to the same extent as if he had retired as an employee on March 1, 2023 and the post-termination exercise period of all of Mr. Stevenson’s stock options, to the extent vested and exercisable on March 1, 2023, will be extended until the original maximum term of such stock options. The agreement also contains provisions that restrict Mr. Stevenson’s ability during the term of the consulting agreement, and (i) for a period of twelve months thereafter, to work for or provide consulting services to, any competitor of the company, and (ii) for a period of eighteen months thereafter, to solicit for hire employees or consultants of the company or to solicit customers or clients of the company.

The foregoing summary of the consulting agreement is subject to, and qualified in its entirety by, the full text of such agreement, which is filed as an exhibit to this Annual Report on Form 10-K.