VivoSim Labs, INC. — Director's Dealing 2014

May 13, 2014

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ORGANOVO HOLDINGS, INC. (ONVO)
CIK: 0001497253
Period of Report: 2014-05-08

Reporting Person: Renard Michael (EVP of Commercial Operations)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2014-05-08	Common Stock	M	50000	$1.65	Acquired	50000	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2014-05-08	Stock Option (Right to Buy)	$1.65	M	50000	Disposed	2022-07-23	Common Stock (50000)	Direct

Footnotes

F1: This number does not include 755,000 shares of common stock underlying oustanding options held by Mr. Renard; post-transaction Mr. Renard continues to beneficially own or have a right to acquire 805,000 shares of common stock.

F2: 25% of the option shares vest and become exercisable on April 30, 2013 and the remaining shares vest in 12 equal quarterly installments thereafter.