Gossamer Bio (GOSS) Shares Outstanding (Diluted) (2019 - 2026)
Gossamer Bio's Weighted Average Shares Outstanding (Diluted) was 4.11 million in Q2 2026, up 44.7% from 2.84 million a year earlier and up 40.4% from the prior quarter.
Powered by 
Analysis
Gossamer Bio (GOSS) Shares Outstanding (Diluted) (2019 - 2026) Analysis & Trends
For FY2025, Weighted Average Shares Outstanding (Diluted) at Gossamer Bio came in at 2.86 million, up 1.0% from FY2024.
- Weighted Average Shares Outstanding (Diluted) has now increased for six consecutive years, with a five-year compound annual growth rate of 27.2% (FY2020 to FY2025).
- In earlier years, Weighted Average Shares Outstanding (Diluted) was 2.83 million in FY2024 (+48.2%), 1.91 million in FY2023 (+80.5%), 1.06 million in FY2022 (+13.0%) and 935,544 in FY2021 (+9.2%).
- The Q2 2026 figure marks the highest quarterly Weighted Average Shares Outstanding (Diluted) in data going back to Q4 2019.
- Compared with a year earlier, Weighted Average Shares Outstanding (Diluted) has increased for four straight quarters, with growth averaging 13.9% over the last eight quarters.
- The best year-over-year quarter for Weighted Average Shares Outstanding (Diluted) over five years was Q2 2024 (growth of 149.9%); the worst was Q2 2025 (a decline of 4.7%).
- Per Business Quant data, GOSS's Weighted Average Shares Outstanding (Diluted) in the three quarters before Q2 2026 was 2.93 million (Q1 2026), 2.86 million (Q4 2025) and 2.85 million (Q3 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 | Gossamer Bio | 68.99 Mn | -275.37 Mn | - | 6.53 Mn |
Historic Data
Download Data
Historic Data
| Date | Value |
|---|---|
| Sep 30, 2026 | 6.53 Mn |
| Jun 30, 2026 | 4.11 Mn |
| Mar 31, 2026 | 2.93 Mn |
| Dec 31, 2025 | 2.86 Mn |
| Sep 30, 2025 | 2.85 Mn |
| Jun 30, 2025 | 2.84 Mn |
| Mar 31, 2025 | 2.84 Mn |
| Dec 31, 2024 | 2.83 Mn |
| Sep 30, 2024 | 2.83 Mn |
| Jun 30, 2024 | 2.98 Mn |
| Mar 31, 2024 | 2.82 Mn |
| Dec 31, 2023 | 1.91 Mn |
| Sep 30, 2023 | 2.41 Mn |
| Jun 30, 2023 | 1.19 Mn |
| Mar 31, 2023 | 1.19 Mn |
| Dec 31, 2022 | 1.06 Mn |
| Sep 30, 2022 | 1.14 Mn |
| Jun 30, 2022 | 958,352.00 |
| Mar 31, 2022 | 948,684.00 |
| Dec 31, 2021 | 935,544.00 |
API Access
Gossamer Bio 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=GOSS&period=max&api_key=YOUR_API_KEYimport requests
url = "https://data.businessquant.com/historic"
params = {"slug": "shares-outstanding-diluted", "ticker": "GOSS", "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=GOSS&period=max&api_key=YOUR_API_KEY");
const data = await res.json();