Rallybio Book Value Per Share Growth & History (RLYB)
Rallybio's book value per share was $10.97 for fiscal 2025.
View full Rallybio company overviewRallybio annual book value per share history
| Fiscal year | Period ended | Book value per share | Change | Growth |
|---|---|---|---|---|
| 2025 | 2025-12-31 | $10.97 | -$0.91 | −7.68% |
| 2024 | 2024-12-31 | $11.88 | -$10.57 | −47.08% |
| 2023 | 2023-12-31 | $22.46 | -$13.34 | −37.27% |
| 2022 | 2022-12-31 | $35.80 | -$7.92 | −18.12% |
| 2021 | 2021-12-31 | $43.72 | -$2.75 | −5.92% |
| 2020 | 2020-12-31 | $46.48 | — | — |
Rallybio quarterly book value per share
| Fiscal quarter | Period ended | Book value per share | Change | YoY change |
|---|---|---|---|---|
| Q2 2026 | 2026-06-30 | $17.81 | $8.99 | +101.96% |
| Q1 2026 | 2026-03-31 | $9.50 | -$0.89 | −8.58% |
| Q4 2025 | 2025-12-31 | $10.97 | -$0.91 | −7.68% |
| Q3 2025 | 2025-09-30 | $12.02 | -$1.63 | −11.94% |
| Q2 2025 | 2025-06-30 | $8.82 | -$6.61 | −42.86% |
| Q1 2025 | 2025-03-31 | $10.40 | -$8.47 | −44.89% |
| Q4 2024 | 2024-12-31 | $11.88 | -$10.57 | −47.08% |
| Q3 2024 | 2024-09-30 | $13.66 | -$12.50 | −47.79% |
| Q2 2024 | 2024-06-30 | $15.43 | -$14.05 | −47.66% |
| Q1 2024 | 2024-03-31 | $18.86 | -$14.03 | −42.65% |
| Q4 2023 | 2023-12-31 | $22.46 | -$13.34 | −37.27% |
| Q3 2023 | 2023-09-30 | $26.15 | -$6.74 | −20.48% |
| Q2 2023 | 2023-06-30 | $29.48 | -$7.33 | −19.92% |
| Q1 2023 | 2023-03-31 | $32.89 | -$7.70 | −18.97% |
| Q4 2022 | 2022-12-31 | $35.80 | -$7.92 | −18.12% |
| Q3 2022 | 2022-09-30 | $32.89 | -$13.54 | −29.16% |
| Q2 2022 | 2022-06-30 | $36.81 | -$121.31 | −76.72% |
| Q1 2022 | 2022-03-31 | $40.59 | — | — |
| Q4 2021 | 2021-12-31 | $43.72 | -$2.75 | −5.92% |
| Q3 2021 | 2021-09-30 | $46.43 | — | — |
| Q2 2021 | 2021-06-30 | $158.12 | — | — |
| Q4 2020 | 2020-12-31 | $46.48 | — | — |
Rallybio book value per share trends
Over the last five fiscal years, Rallybio's book value per share decreased from $46.48 to $10.97, a change of -$35.51. The latest reported quarter, Q2 2026, shows $17.81.
What book value per share means
Book value per share estimates the common shareholders’ accounting equity represented by each share. It can help compare a company’s balance-sheet value over time, although market value can differ substantially from book value.
How book value per share is calculated
TickerStat calculates book value per share as SEC-reported common shareholders’ equity divided by reported period-end common shares. Preferred equity is subtracted when separately reported, and basic weighted-average shares are used only when period-end shares are unavailable. Fiscal periods can differ from calendar years, so exact period-end dates are included.
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