Rallybio (RLYB) Shares Outstanding (Diluted) (2021 - 2026)
Rallybio (RLYB) recorded Weighted Average Shares Outstanding (Diluted) of 5.72 million in Q3 2026, up 1.5% from 5.63 million a year earlier but down 1.4% from the prior quarter.
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Analysis
Rallybio (RLYB) Shares Outstanding (Diluted) (2021 - 2026) Analysis & Trends
For FY2025, Rallybio reported Weighted Average Shares Outstanding (Diluted) of 5.63 million, up 3.4% from FY2024.
- Annual Weighted Average Shares Outstanding (Diluted) has increased for four straight years, with a four-year compound annual growth rate of 15.3% (FY2021 to FY2025).
- Across earlier years, Weighted Average Shares Outstanding (Diluted) came in at 5.44 million in FY2024 (+7.7%), 5.06 million in FY2023 (+27.1%), 3.98 million in FY2022 (+24.7%) and 3.19 million in FY2021.
- Quarterly Weighted Average Shares Outstanding (Diluted) has ranged from 3.19 million in Q4 2021 to 5.8 million in Q2 2026 over the past five years.
- On a year-over-year basis, Weighted Average Shares Outstanding (Diluted) has increased for 18 consecutive quarters, with growth averaging 3.8% over the last eight quarters.
- The year-over-year growth in Weighted Average Shares Outstanding (Diluted) has ranged between 1.0% (Q3 2025) and 35.6% (Q2 2022) over the last five years.
- Per Business Quant, the preceding three quarters came in at 5.8 million (Q2 2026), 5.69 million (Q1 2026) and 5.63 million (Q4 2025).
Peer Set
Peer Comparison
| # | Company | Market Cap | Enterprise Value | Gross Profit (Qtr) | Shares Outstanding (Dil.) (Qtr) |
|---|---|---|---|---|---|
| 1 | Eli Lilly | 1,348.13 Bn | 1,321.74 Bn | 20.46 Bn | 893.40 Mn |
| 2 | Johnson & Johnson | 675.90 Bn | 595.76 Bn | 17.30 Bn | 2.45 Bn |
| 3 | AbbVie | 519.45 Bn | 487.50 Bn | 13.12 Bn | 1.77 Bn |
| 4 | Merck | 364.95 Bn | 327.95 Bn | 13.19 Bn | 2.48 Bn |
| 5 | Novartis Ag | 311.58 Bn | 285.16 Bn | - | 1.96 Bn |
| 6 | Astrazeneca | 289.34 Bn | 262.94 Bn | 13.26 Bn | 1.56 Bn |
| 7 | Amgen | 251.64 Bn | 203.30 Bn | 7.58 Bn | 546.00 Mn |
| 8 | Gilead Sciences | 212.05 Bn | 187.07 Bn | 6.73 Bn | 1.25 Bn |
| 9 | Pfizer | 167.35 Bn | 115.00 Bn | 12.56 Bn | 5.75 Bn |
| 10 | Rallybio | 84.05 Mn | -201.02 Mn | - | 5.72 Mn |
Historic Data
Download Data
Historic Data
| Date | Value |
|---|---|
| Sep 30, 2026 | 5.72 Mn |
| Jun 30, 2026 | 5.80 Mn |
| Mar 31, 2026 | 5.69 Mn |
| Dec 31, 2025 | 5.63 Mn |
| Sep 30, 2025 | 5.63 Mn |
| Jun 30, 2025 | 5.61 Mn |
| Mar 31, 2025 | 5.60 Mn |
| Dec 31, 2024 | 5.44 Mn |
| Sep 30, 2024 | 5.57 Mn |
| Jun 30, 2024 | 5.52 Mn |
| Mar 31, 2024 | 5.10 Mn |
| Dec 31, 2023 | 5.06 Mn |
| Sep 30, 2023 | 5.07 Mn |
| Jun 30, 2023 | 5.05 Mn |
| Mar 31, 2023 | 5.03 Mn |
| Dec 31, 2022 | 3.98 Mn |
| Sep 30, 2022 | 3.85 Mn |
| Jun 30, 2022 | 3.82 Mn |
| Mar 31, 2022 | 3.79 Mn |
| Dec 31, 2021 | 3.19 Mn |
API Access
Rallybio Shares Outstanding (Diluted) API
Pull this series into your own models, spreadsheets and apps with the Business Quant
Historical Metrics API. The request below matches the chart above — change the
frequency, period or values and it follows. Swap YOUR_API_KEY for your own key.
https://data.businessquant.com/historic?slug=shares-outstanding-diluted&ticker=RLYB&period=max&api_key=YOUR_API_KEYimport requests
url = "https://data.businessquant.com/historic"
params = {"slug": "shares-outstanding-diluted", "ticker": "RLYB", "period": "max", "api_key": "YOUR_API_KEY"}
data = requests.get(url, params=params).json()const res = await fetch("https://data.businessquant.com/historic?slug=shares-outstanding-diluted&ticker=RLYB&period=max&api_key=YOUR_API_KEY");
const data = await res.json();