TickerFacts.

Synlogic, Inc. (SYBX): Shares Outstanding

Annual figures by period end, from SEC filings.

Stock splits: 1-for-15, first reflected in a filing dated 2023-11-09. 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.

11.70M
As of 2025-12-31
11.70M
As of 2026-06-30
69.70M2014-12-31: 83.3K2015-12-31: 20.83M2016-12-31: 20.84M2017-12-31: 16.27M2018-12-31: 25.40M2019-12-31: 32.27M2020-12-31: 38.18M2021-12-31: 69.70M2022-12-31: 4.45M2023-12-31: 9.19M2024-12-31: 11.70M2025-12-31: 11.70M11.70M
2014-12-31 Shares Outstanding (shares) 2025-12-31

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

Period endedShares OutstandingChange YoYSource filing
2025-12-3111.70M0.0%2026-03-12, Balance as of period end
2024-12-3111.70M+27.3%2026-03-12, Balance as of period end
2023-12-319.19Mn/c2025-03-06, Balance as of period end
2022-12-314.45Mn/c2024-03-19, Balance as of period end
2021-12-3169.70M+82.5%2023-03-29, Balance as of period end
2020-12-3138.18M+18.3%2022-03-17, Balance as of period end
2019-12-3132.27M+27.0%2021-03-25, Balance as of period end
2018-12-3125.40Mn/c2020-03-12, Balance as of period end
2017-12-3116.27M-21.9%2019-03-12, Balance as of period end
2016-12-3120.84M+0.1%2017-03-15, Balance as of period end
2015-12-3120.83Mn/m2017-03-15, Balance as of period end
2014-12-3183.3Kn/a2016-03-30, Balance as of period end