X0306 4/A 2020-07-17 2020-07-21 0 0001649989 Outlook Therapeutics, Inc. OTLK 0001204059 THURMAN RANDY H C/O OUTLOOK THERAPEUTICS, INC. 4260 US ROUTE 1 MONMOUTH JUNCTION NJ 08852 1 0 0 0 Stock Option (Right to Buy) 1.58 2020-07-17 4 A 0 154555 0.00 A 2030-07-17 Common Stock 154555 154555 D The options were granted under the Issuer's 2015 Equity Incentive Plan (the "2015 Plan") and shall vest in full on July 17, 2021, subject to the Reporting Person providing continuous service to the Issuer on such date and subject to acceleration upon a Change in Control as defined in the 2015 Plan, subject to the Reporting Person providing continuous service to the Issuer through such event. This Form 4/A is being filed to reflect the correct number of shares underlying the option granted to the Reporting Person on July 17, 2020 to 154,555 shares instead of the 210,000 shares reported in the Form 4 filed with the Securities and Exchange Commission on July 21, 2020. /s/ Lawrence Kenyon, Attorney-in-Fact 2020-09-17