TickerFacts.

Outlook Therapeutics, Inc. (OTLK): Shares Outstanding

Annual figures by period end, from SEC filings.

Stock splits: 1-for-20, first reflected in a filing dated 2024-05-15. Figures are as filed: per-share figures and share counts last reported before a split are on the old share basis, so changes and growth rates across a split are not shown. Splits are read from the filings' own restatements, so a share conversion in a merger or reorganization shows up the same way.

53.89M
As of 2025-09-30
187.10M
As of 2026-06-30
227.31M2015-09-30: 9.44M2016-09-30: 22.80M2017-09-30: 24.93M2018-09-30: 9.03M2019-09-30: 28.61M2020-09-30: 127.18M2021-09-30: 176.46M2022-09-30: 227.31M2023-09-30: 13.01M2024-09-30: 23.91M2025-09-30: 53.89M53.89M
2015-09-30 Shares Outstanding (shares) 2025-09-30

Paler bars were last filed before a stock split, on the old share basis.

Period endedShares OutstandingChange YoYSource filing
2025-09-3053.89M+125.4%2025-12-19, Balance as of period end
2024-09-3023.91M+83.7%2025-12-19, Balance as of period end
2023-09-3013.01Mn/c2024-12-27, Balance as of period end
2022-09-30227.31M+28.8%2023-12-22, Balance as of period end
2021-09-30176.46M+38.7%2022-12-29, Balance as of period end
2020-09-30127.18M+344.5%2021-12-23, Balance as of period end
2019-09-3028.61M+216.9%2020-12-23, Balance as of period end
2018-09-309.03M-63.8%2019-12-19, Balance as of period end
2017-09-3024.93M+9.3%2018-12-18, Balance as of period end
2016-09-3022.80M+141.6%2017-12-29, Balance as of period end
2015-09-309.44Mn/a2016-12-29, Balance as of period end