Prothena Corporation Ratios and Metrics

Market cap in millions GBP. Fiscal year is January - December.

Millions GBP. Fiscal year is Jan - Dec.

Fiscal Year	Current	FY 2023	FY 2022	FY 2021	FY 2020	FY 2019	2018 - 2014
Period Ending	Feb '25 Feb 20, 2025	Dec '23 Dec 31, 2023	Dec '22 Dec 31, 2022	Dec '21 Dec 31, 2021	Dec '20 Dec 31, 2020	Dec '19 Dec 31, 2019	2018 - 2014
Market Capitalization	662	1,531	2,582	1,700	351	477	Upgrade
Market Cap Growth	-68.29%	-40.69%	51.87%	384.06%	-26.36%	48.02%	Upgrade
Enterprise Value	298	1,013	2,177	1,267	135	200	Upgrade
Last Close Price	12.42	28.72	49.63	31.29	8.72	8.99	Upgrade
PE Ratio	-	-	-	34.37	-	-	Upgrade
PS Ratio	6.75	21.34	57.70	11.48	562.08	775.88	Upgrade
PB Ratio	1.68	3.47	5.00	4.94	2.61	2.31	Upgrade
P/TBV Ratio	1.68	3.47	5.00	4.94	2.61	2.31	Upgrade
P/FCF Ratio	-	-	-	25.01	-	-	Upgrade
P/OCF Ratio	-	-	-	24.86	-	-	Upgrade
EV/Sales Ratio	2.79	14.12	48.66	8.55	215.82	326.07	Upgrade
EV/EBITDA Ratio	-	-	-	23.47	-	-	Upgrade
EV/EBIT Ratio	-	-	-	23.83	-	-	Upgrade
EV/FCF Ratio	-	-	-	18.64	-	-	Upgrade
Debt / Equity Ratio	0.02	0.02	0.01	0.03	0.10	0.08	Upgrade
Debt / EBITDA Ratio	-	-	-	0.16	-	-	Upgrade
Debt / FCF Ratio	-	-	-	0.13	-	-	Upgrade
Asset Turnover	0.20	0.13	0.08	0.43	0.00	0.00	Upgrade
Quick Ratio	11.19	10.97	14.17	17.31	11.43	21.21	Upgrade
Current Ratio	11.52	11.24	14.34	17.48	11.58	21.36	Upgrade
Return on Equity (ROE)	-22.90%	-24.85%	-21.50%	20.61%	-48.65%	-26.07%	Upgrade
Return on Assets (ROA)	-15.66%	-16.42%	-12.03%	9.55%	-18.73%	-11.68%	Upgrade
Return on Capital (ROIC)	-17.91%	-19.87%	-14.86%	13.23%	-28.31%	-15.99%	Upgrade
Return on Capital Employed (ROCE)	-	-	-	12.50%	-	-	Upgrade
Earnings Yield	-14.75%	-7.54%	-3.76%	2.91%	-23.18%	-12.30%	Upgrade
FCF Yield	-17.24%	-7.01%	-3.51%	4.00%	-16.80%	-8.47%	Upgrade
Buyback Yield / Dilution	-3.25%	-12.34%	2.26%	-21.42%	-0.08%	-0.82%	Upgrade
Total Shareholder Return	-3.25%	-12.34%	2.26%	-21.42%	-0.08%	-0.82%	Upgrade

Source: S&P Capital IQ. Standard template. Financial Sources.