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Bionomics Limited shares are primary listed on the Australian Securities Exchange (ASX) under the symbol BNO and the US NASDAQ (BNOX) and OTCQB (BNOEF).

Current shareholders on ASX may click here to update personal details.

For any queries relating to Bionomics shares  in Australia (e.g. updating contact or ownership details, dividend payments etc) please contact:

Computershare Investor Services Pty Ltd
Toll: 1300 556 161 
Toll-free:+61 3 9415 4000 

Additional Info


In connection with Bionomic’ Limited’s (Bionomics) Initial Public Offering in the United States of American Depositary Shares (ADSs) on the Nasdaq Global Market (Nasdaq) representing ordinary shares of Bionomics (Shares), the ADSs began trading on Nasdaq under the symbol “BNOX” on December 16, 2021.

This document is intended to assist holders of Shares listed on ASX under the ticker symbol “BNO” or on the OTCQB exchange under the ticker symbol “BNOEF”, through the process of exchanging such Shares for ADSs, and to answer certain frequently asked questions applicable to holders of the Shares.

Bionomics’ ADS is a tradeable security representing 180 Shares. Bionomics’ ADSs have been approved by the U.S. Securities & Exchange Commission for trading on Nasdaq under the ticker symbol “BNOX”. The value of each ADS is denominated in US Dollars.

Citibank is the Company’s American Depository bank and facilitates the process of issuance and cancellations of ADSs. For more information visit:

Bionomics’ ADSs can be purchased through a typical broker, just as you would to buy U.S. securities. You cannot buy ADSs directly from the Company.

The process set out below explains what you need to do to select a suitable broker account and summarizes the instructions that you need to give to your broker in order to convert your Shares into ADSs.

Citibank typically can be expected to issue ADSs to your broker within two business days of receiving an electronic transfer of Shares from your broker. However, before this can happen, if you hold your Shares in certificated form, you will need to send your share certificate and a signed stock transfer/deposit form to your broker who will then need to manage the “dematerialisation” process needed to exchange your shares into electronic form. The timescale for this will depend on your broker but should be expected to take about a week.

No, the Company’s Shares will continue to trade on ASX and OTCQB. If you do not wish to hold ADSs but wish to remain a shareholder of Bionomics Limited, then no action is required.

Yes, conversion into ADSs will require the assistance of a broker. Please refer to “Process for exchanging Shares for ADSs”.

Investors in the United States generally prefer to purchase ADSs rather than ordinary shares in the issuer’s home market because ADSs trade, clear and settle according to United States market conventions. One of the main advantages to ADSs is the facilitation of diversification into foreign securities. ADSs also allow easy comparison to securities of similar companies as well as access to price and trading information, U.S. dollar dividend payments and corporate action notifications.

Bionomics files annual, semi-annual, and special reports alongside other information with the Securities and Exchange Commission (SEC). Please visit to view our latest filings.

You may also read and copy any documents that Bionomics files with the SEC at the Public Reference Room, 100 F Street, N.E., Washington, D.C. 20549, USA or call the SEC on 1-800-SEC-0330 for further information on the Public Reference Room.

Step 1: Identify a broker with US listed securities trading capability. If you do not already have an account with a broker, you may be able to open one either online or through banks and building societies which offer broking services. You need to ensure that the broker and type of account on offer is capable of holding and trading US listed securities. You will need to select an account that gives you the ability to buy and sell US listed shares. Please ensure that you check with your broker that they can hold Bionomics Ltd ADSs (Nasdaq:BNOX) and have a DTC participant account.

Step 2: You will need to contact your broker and ask them how to transfer your existing certificated or dematerialized/CHESS Shares into your account. If you hold physical share certificates, you will need to send them, together with a completed stock deposit form to your broker. The broker must provide you with the required stock deposit form and instructions. When the broker receives the share certificates, they will need to “dematerialize” the shares into electronic/CHESS form. When completed your broker can then deal with the conversion into ADSs. If you already hold your Shares in an electronic form, you can deliver them to the broker handling the ADS conversion.

Step 3: Your broker will need to contact Citibank by email to arrange for the conversion of your Shares into ADSs tradeable on Nasdaq. You will receive one ADS for every 180 Shares that you deposit with Citibank’s custodian – Citicorp Nominees Pty Ltd. (the “Custodian”). The contact details for Citibank and the Custodian, together with details of the conversion process are set out below. We suggest that you send these to your broker.

For additional information, contact Citibank Capital Markets Solutions team:

Main Address:Contacts:
Citibank, N.A.
Depositary Receipt Services
388 Greenwich Street
Trading Building, 3rd Floor
New York, NY 10013
Jason Zoppel
Tel: 1-212-723-5473

Michael O'Leary
Tel: 1-212-723-5435

Robert Vaughan
Tel: 1-212-723-7160
Australia Citibank
39/F, ICBC Tower
Citibank Plaza
3, Garden Road
Central, Hong Kong
Valentina Chuang
Tel: 852-2868-7959

Ana-Maria Carasso
Tel: 1-212-816-6839