Prothena Corp Public (PRTA) Cash & Equivalents (2012 - 2026)
Prothena Corp Public (PRTA) reported Cash & Equivalents of $288.2 million for Q2 2026, down 22.4% from $371.44 million a year earlier and down 12.5% from the prior quarter.
Prothena Corp Public (PRTA) Cash & Equivalents (2012 - 2026) Analysis & Trends
At the end of FY2025, Prothena Corp Public posted Cash & Equivalents of $307.53 million, down 34.8% from FY2024.
- Cash & Equivalents has declined for three consecutive years, though with a five-year compound annual growth rate of 0.8% (FY2020 to FY2025).
- By year, Cash & Equivalents came in at $471.39 million in FY2024 (-23.8%), $618.83 million in FY2023 (-12.9%), $710.41 million in FY2022 (+22.7%) and $579.09 million in FY2021 (+96.1%).
- The Q2 2026 figure ranks as the lowest quarterly Cash & Equivalents since Q1 2015.
- Year over year, Cash & Equivalents has now declined in each of the last 11 quarters, with an average decline of 27.3% over the last eight quarters.
- The high point for year-over-year Cash & Equivalents in five years was Q4 2021 (growth of 96.1%); the low point was Q3 2025 (a decline of 36.3%).
- Per Business Quant data, the three quarters before Q2 2026 came in at $329.5 million (Q1 2026), $307.53 million (Q4 2025) and $330.84 million (Q3 2025).
Peer Comparison
| # | Company | Market Cap | Enterprise Value | Gross Profit (Qtr) | Cash & Equiv. (Qtr) |
|---|---|---|---|---|---|
| 1 | Eli Lilly | 1,348.13 Bn | 1,321.74 Bn | 20.46 Bn | 4.89 Bn |
| 2 | Johnson & Johnson | 675.90 Bn | 595.76 Bn | 17.30 Bn | 16.91 Bn |
| 3 | AbbVie | 519.45 Bn | 487.50 Bn | 13.12 Bn | 10.77 Bn |
| 4 | Merck | 364.95 Bn | 327.95 Bn | 13.19 Bn | 9.55 Bn |
| 5 | Novartis Ag | 311.58 Bn | 285.16 Bn | - | 400.00 Mn |
| 6 | Astrazeneca | 289.34 Bn | 262.94 Bn | 13.26 Bn | 7.94 Bn |
| 7 | Amgen | 251.64 Bn | 203.30 Bn | 7.58 Bn | 13.19 Bn |
| 8 | Gilead Sciences | 212.05 Bn | 187.07 Bn | 6.73 Bn | 6.44 Bn |
| 9 | Pfizer | 167.35 Bn | 115.00 Bn | 12.56 Bn | 1.82 Bn |
| 10 | Prothena Corp Public | 439.48 Mn | -757.15 Mn | - | 271.40 Mn |
Historic Data
| Date | Value |
|---|---|
| Sep 30, 2026 | 271.40 Mn |
| Jun 30, 2026 | 288.20 Mn |
| Mar 31, 2026 | 329.50 Mn |
| Dec 31, 2025 | 307.53 Mn |
| Sep 30, 2025 | 330.84 Mn |
| Jun 30, 2025 | 371.44 Mn |
| Mar 31, 2025 | 417.94 Mn |
| Dec 31, 2024 | 471.39 Mn |
| Sep 30, 2024 | 519.26 Mn |
| Jun 30, 2024 | 564.12 Mn |
| Mar 31, 2024 | 546.51 Mn |
| Dec 31, 2023 | 618.83 Mn |
| Sep 30, 2023 | 670.90 Mn |
| Jun 30, 2023 | 659.11 Mn |
| Mar 31, 2023 | 686.18 Mn |
| Dec 31, 2022 | 710.41 Mn |
| Sep 30, 2022 | 495.63 Mn |
| Jun 30, 2022 | 508.80 Mn |
| Mar 31, 2022 | 542.99 Mn |
| Dec 31, 2021 | 579.09 Mn |
Prothena Corp Public Cash & Equivalents 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=cash-and-equivalents&ticker=PRTA&period=max&api_key=YOUR_API_KEY
import requests
url = "https://data.businessquant.com/historic"
params = {"slug": "cash-and-equivalents", "ticker": "PRTA", "period": "max", "api_key": "YOUR_API_KEY"}
data = requests.get(url, params=params).json()
const res = await fetch("https://data.businessquant.com/historic?slug=cash-and-equivalents&ticker=PRTA&period=max&api_key=YOUR_API_KEY");
const data = await res.json();