Pasadena-Based Arrowhead Pharmaceuticals Closes $45 Million Private Offering

Arrowhead Pharmaceuticals Inc. today announced that it closed a previously announced private offering with a select group of investors including Orbimed, RA Capital Management, Perceptive Advisors, RTW Investments and certain other institutional investors. Gross proceeds were $45 million. Approximately 7.63 million shares of common stock were issued at a price of $5.90 per share.

Cantor Fitzgerald & Co. acted as sole placement agent for the private offering. Trout Capital LLC and Chardan Capital Markets LLC acted as financial advisors.

This press release shall not constitute an offer to sell or the solicitation of an offer to buy these securities, nor shall there be any offer, solicitation or sale of these securities in any jurisdiction in which such offer, solicitation or sale would be unlawful.

The securities sold in the private placement have not been registered under the Securities Act of 1933, as amended (the “Securities Act”), or any state or other jurisdiction’s securities laws, and may not be offered or sold in the United States absent registration or an applicable exemption from the registration requirements of the Securities Act and applicable state or other jurisdictions’ securities laws. The Company has agreed to file a registration statement with the Securities and Exchange Commission registering the resale of the shares of common stock issued and sold in the private placement.

About Arrowhead Pharmaceuticals

Arrowhead Pharmaceuticals develops medicines that treat intractable diseases by silencing the genes that cause them. Using a broad portfolio of RNA chemistries and efficient modes of delivery, Arrowhead therapies trigger the RNA interference mechanism to induce rapid, deep, and durable knockdown of target genes. RNA interference, or RNAi, is a mechanism present in living cells that inhibits the expression of a specific gene, thereby affecting the production of a specific protein. Arrowhead’s RNAi-based therapeutics leverage this natural pathway of gene silencing. The company’s pipeline includes ARC-520 and ARC-521 for chronic hepatitis B virus infection, ARC-AAT for liver disease associated with alpha-1 antitrypsin deficiency, ARC-F12 for hereditary angioedema and thromboembolic disorders, ARC-LPA for cardiovascular disease, and ARC-HIF2 for renal cell carcinoma.

For more information please visit , or follow us on Twitter . To be added to the Company’s email list and receive news directly, please visit .