Oncobiologics Announces Term Extension of Series A Warrants Cranbury, NJ

Oncobiologics Announces Term Extension

of Series A Warrants

Cranbury, NJ - February 9, 2018

- Oncobiologics, Inc. (NASDAQ: ONS; ONSIW; ONSIZ) announced today an extension to the term for exercise of its publicly

traded Series A warrants (NASDAQ: ONSIW).

The Series A warrants were issued as part

of the units in Oncobiologics' May 2016 initial public offering and are exercisable for shares of its common stock at an

exercise price of $6.60 per share. The Series A warrants, as previously extended, would have expired at 5:00 p.m. New York City

time on February 18, 2018. The expiration date has now been extended to 5:00 p.m. New York City time on the earlier to occur of

(a) the date that is twenty (20) business days after the date on which the closing sales price of Oncobiologics' common stock

is greater than or equal to $7.25 per share and (b) February 18, 2019. The Series A warrants and the common stock issuable upon

exercise of the Series A warrants are covered by a registration statement on Form S-1, as amended, previously filed with and declared

effective by the Securities and Exchange Commission.

This press release shall not constitute

an offer to sell or a solicitation of an offer to buy, nor shall there be any sale of these securities in any state or jurisdiction

in which such offer, solicitation or sale would be unlawful, prior to registration or qualification under the securities laws of

any such state or jurisdiction.

About Oncobiologics, Inc. and its BioSymphony

Oncobiologics is a clinical-stage biopharmaceutical

company focused on identifying, developing, manufacturing and commercializing complex biosimilar therapeutics. Its current focus

is on technically challenging and commercially attractive monoclonal antibodies (mAbs) in the disease areas of immunology and oncology.

Oncobiologics is advancing its pipeline of biosimilar products, two of which are currently in clinical development. Led by a team

of biopharmaceutical experts, Oncobiologics operates from an in-house state-of-the-art fully integrated research and development,

and manufacturing facility in Cranbury, New Jersey. Oncobiologics employs its BioSymphony Platform to address the challenges

of biosimilar development and commercialization by developing high quality mAb biosimilars in an efficient and cost-effective manner

on an accelerated timeline. For more information, please visit www.oncobiologics.com.