Prothena Corp Public (PRTA) Interest Expenses (2012 - 2026)

Prothena Corp Public's (PRTA) quarterly Interest Expenses came in at $800000.0 in Q1 2026, up 14.29% year-on-year from $700000.0 in Q1 2025, and little changed quarter-over-quarter from $800000.0 in Q4 2025.

Prothena Corp Public (PRTA) Interest Expenses (2012 - 2026) Analysis & Trends

Prothena Corp Public's Interest Expenses history runs 15 years deep, the most recent figure standing at $800000.0 for Q1 2026.

  • On a quarterly basis, Interest Expenses rose 14.29% year-over-year to $800000.0 in Q1 2026; TTM through Mar 2026 was $3.1 million, a 10.71% increase from a year earlier, with the FY2025 full-year figure at $266.6 million, up 34.05% from the prior year.
  • Interest Expenses steadied at $800000.0 in Q1 2026 per PRTA's latest filing, from $800000.0 in the prior quarter.
  • Across five years, Interest Expenses topped out at $10.8 million in Q2 2025 and bottomed at -$4.5 million in Q4 2023.
  • The 5-year median for Interest Expenses is $800000.0 (2025), against an average of $1.4 million.
  • Across the five-year window, Interest Expenses sank 381.25% in 2023 and jumped 1438.71% in 2025, its largest moves.
  • Year by year, Interest Expenses stood at $1.6 million in 2022, then sank by 381.25% to -$4.5 million in 2023, then surged by 115.56% to $700000.0 in 2024, then rose by 14.29% to $800000.0 in 2025, then changed by 0.0% to $800000.0 in 2026.
  • Per Business Quant, the three latest PRTA Interest Expenses figures stand at $800000.0 (Q1 2026), $800000.0 (Q4 2025), and $800000.0 (Q3 2025).

Peer Comparison

# Company Market Cap Enterprise Value Gross Profit (Qtr) Int Expense (Qtr)
1 Oculis Holding AG 67,072.09 Bn 67,072.09 Bn - -42,141.15
2 Nanobiotix 1,894.61 Bn 1,894.55 Bn - -
3 Akari Therapeutics 1,014.18 Bn 1,014.18 Bn - 100,000.00
4 BeOne Medicines 471.64 Bn 466.85 Bn 1.35 Bn 32.89 Mn
5 Vertex Pharmaceuticals 121.72 Bn 114.47 Bn 2.59 Bn 420.30 Mn
6 Regeneron Pharmaceuticals 68.28 Bn 59.52 Bn 3.31 Bn 28.30 Mn
7 Belite Bio 61.40 Bn 61.40 Bn - -
8 Argenx Se 56.94 Bn 56.94 Bn 1.18 Bn -
9 Revolution Medicines 37.37 Bn 37.37 Bn - 1.17 Bn
10 Prothena Corp Public 467.80 Mn 138.33 Mn - 800,000.00

Historic Data

Download Data
DateValue
Mar 31, 2026 800,000.00
Mar 31, 2026 800,000.00
Dec 31, 2025 800,000.00
Dec 31, 2025 800,000.00
Sep 30, 2025 800,000.00
Sep 30, 2025 800,000.00
Jun 30, 2025 10.77 Mn
Jun 30, 2025 10.77 Mn
Mar 31, 2025 700,000.00
Mar 31, 2025 700,000.00
Dec 31, 2024 700,000.00
Dec 31, 2024 700,000.00
Sep 30, 2024 700,000.00
Sep 30, 2024 700,000.00
Jun 30, 2024 700,000.00
Jun 30, 2024 700,000.00
Mar 31, 2024 500,000.00
Mar 31, 2024 500,000.00
Dec 31, 2023 -4.50 Mn
Dec 31, 2023 -4.50 Mn