Prothena Corp Public PRTA
NASDAQ PRTA
$8.36 -0.18 (-2.11%)
At close: Oct 2, 2026 · 4:00 PM EDT

Prothena Corp Public (PRTA) Cash & Equivalents (2012 - 2026)

Updated

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.

Analysis

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 Set

Peer Comparison

# Company Market Cap Enterprise Value Gross Profit (Qtr) Cash & Equiv. (Qtr)
1 Johnson & Johnson 638.12 Bn 556.64 Bn 17.26 Bn 20.42 Bn
2 AbbVie 462.60 Bn 435.75 Bn 12.70 Bn 6.57 Bn
3 Merck 358.70 Bn 313.13 Bn 12.21 Bn 6.85 Bn
4 Novartis Ag 272.16 Bn 228.03 Bn 11.24 Bn 7.62 Bn
5 Astrazeneca 250.36 Bn 223.92 Bn 12.86 Bn 4.89 Bn
6 Amgen 227.87 Bn 183.27 Bn 7.24 Bn 13.99 Bn
7 Gilead Sciences 184.97 Bn 159.08 Bn 6.22 Bn 3.18 Bn
8 Pfizer 162.61 Bn 109.56 Bn 10.94 Bn 976.00 Mn
9 Vertex Pharmaceuticals 132.45 Bn 104.46 Bn 2.84 Bn 6.14 Bn
10 Prothena Corp Public 433.62 Mn -822.46 Mn - 288.20 Mn
Historic Data

Historic Data

Download Data
DateValue
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
Sep 30, 2021 600.10 Mn
API Access

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