VivoSim Labs, INC.

We have adopted the Organovo Holdings, Inc. Code of Business Conduct (the “Code of Business Conduct”) that applies to all of our officers, directors, employees and consultants. Among other matters, our Code of Business Conduct is designed to deter unlawful or unethical behavior and to promote the following:

•

Prohibiting conflicts of interest (including protecting corporate opportunities);

•

Protecting our confidential and proprietary information and that of our customers and vendors;

•

Treating our employees, customers, suppliers and competitors fairly;

•

Encouraging full, fair, accurate, timely and understandable disclosure;

•

Protecting and properly using company assets;

•

Conducting research activities with honesty, objectivity, transparency and accountability;

•

Complying with laws, rules and regulations (including insider trading laws); and

•

Encouraging the reporting of any unlawful or unethical behavior.

Any waiver of the Code of Business Conduct for our executive officers, directors or employees may be made only by our Nominating and Corporate Governance Committee and will be promptly disclosed on our website. We have posted a copy of our Code of Business Conduct, and intend to post amendments to this code, on our website as permitted under SEC rules and regulations. The full text of our Code of Business Conduct is available on our website at www.organovo.com.