TickerFacts.

Rallybio Corp (RLYB): Shares Outstanding

Annual figures by period end, from SEC filings.

Stock splits: 1-for-8, first reflected in a filing dated 2026-03-16. 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.

5.28M
As of 2025-12-31
5.31M
As of 2026-06-30
37.84M2020-12-31: 23.41M2021-12-31: 32.13M2022-12-31: 37.84M2023-12-31: 37.83M2024-12-31: 5.19M2025-12-31: 5.28M5.28M
2020-12-31 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
2025-12-315.28M+1.8%2026-03-16, Balance as of period end
2024-12-315.19Mn/c2026-03-16, Balance as of period end
2023-12-3137.83M0.0%2025-03-13, Balance as of period end
2022-12-3137.84M+17.8%2024-03-12, Balance as of period end
2021-12-3132.13M+37.2%2023-03-06, Balance as of period end
2020-12-3123.41Mn/a2022-03-15, Balance as of period end